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Artículos de revistas sobre el tema "Constructed wetlands"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 25 de julio de 2025

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1

Kennedy, Gavin, and Tatiana Mayer. "Natural and Constructed Wetlands in Canada: An Overview." Water Quality Research Journal 37, no. 2 (2002): 295–325. http://dx.doi.org/10.2166/wqrj.2002.020.

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Abstract A review of freshwater wetland research in Canada was conducted to highlight the importance of these ecosystems and to identify wetland research needs. Both natural and constructed wetland systems are discussed. Natural wetlands are an important part of the Canadian landscape. They provide the habitat for a broad variety of flora and fauna and contribute significantly to the Canadian economy. It is estimated that the total value derived from consumptive and non-consumptive activities exceeds $10 billion annually. The past decades have witnessed the continued loss and degradation of we

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2

Xia, Hong Xia, and Qi Hong Zhu. "Purification Effect of Self-Aeration Constructed Wetlands on COD." Advanced Materials Research 690-693 (May 2013): 1122–26. http://dx.doi.org/10.4028/www.scientific.net/amr.690-693.1122.

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Aimed at the issue of dissolved oxygen concentration insufficiency in regular constructed wetlands, shale hollow bricks are adopted to build self-aeration constructed wetlands, to increase the oxygen supply capacity in the system. The experimental result indicates that DO concentration in self-aeration constructed wetlands is 0.1mg/L higher than that in artificially intensified aeration wetlands, and the removal rate for COD reaches over 85%,which is about 2% higher than that of artificial aeration wetlands. This shows that the built self-aeration constructed wetland system can increase oxygen

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3

Chen, Fang, and Qiang Yao. "Application of Constructed Wetland to Rural Domestic Wastewater Treatment in China." Advanced Materials Research 1073-1076 (December 2014): 1011–14. http://dx.doi.org/10.4028/www.scientific.net/amr.1073-1076.1011.

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Constructed wetland is a new wastewater treatment technology. It not only is more effective in wastewater treatment, but also has good eco-landscapes value. According to the characteristics of domestic wastewater discharge in rural, constructed wetlands is a key technology to solving this problem in China. Application of constructed wetland to Chinese rural domestic wastewater treatment was reviewed in this paper. On this basis, the issues in the application of constructed wetland encountered, and future trends are discussed. On the one hand, constructed wetlands were prone to clogging and low

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4

Rash, Jonathan K., and Sarah K. Liehr. "Flow Pattern Analysis of Constructed Wetlands Treating Landfill Leachate." Water Science and Technology 40, no. 3 (1999): 309–15. http://dx.doi.org/10.2166/wst.1999.0176.

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Three series of tracer studies were performed on three constructed wetlands at the New Hanover County Landfill near Wilmington, North Carolina, USA. One vegetated free water surface wetland (FWS-R), one vegetated subsurface flow wetland (SSF-R), and one unvegetated control subsurface flow wetland (SSF-C) were studied. A conservative tracer, lithium chloride, was used to study the chemical reactor behavior of these wetlands under normal operating conditions. Results indicated that short-circuiting is quite common in SSF wetlands, while FWS wetlands are well-mixed and not as subject to short-cir

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5

Hadidi, Luna Al. "CONSTRUCTED WETLANDS A COMPREHENSIVE REVIEW." International Journal of Research -GRANTHAALAYAH 9, no. 8 (2021): 395–417. http://dx.doi.org/10.29121/granthaalayah.v9.i8.2021.4176.

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Constructed wetlands are wastewater treatment systems composed of one or more treatment cells in a building designed and constructed to provide wastewater treatment. Constructed wetlands are classified into two types: free water surface (FWS) wetlands (also known as surface flow wetlands) closely resemble natural wetlands in appearance because they contain aquatic plants that are rooted in a soil layer on the bottom of the wetland and water flows through the leaves and stems of plants. Subsurface flow wetlands (SSF) or known as a vegetated submerged bed (VSB) systems do not resemble natural we

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6

Sukhla, Prof Saurabh M., Mr Khatik Sufiyan Jameel, Mr Prasad Abhishek Ramesh, et al. "Wastewater Treatment Using Constructed Wetland System." International Journal for Research in Applied Science and Engineering Technology 10, no. 5 (2022): 1303–6. http://dx.doi.org/10.22214/ijraset.2022.42463.

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Abstract: Natural wetland such as marshes ,swamps and bogs protect water quality . constructed or artificial wetland system mimic the treatment that occurs in natural wetlands by rellyilng on plants and a combination of naturally occurring biological , chemical and physical processes to remove pollutants from water . As of 1999,there were more than 500 constructed wetland in Europe and 600 in north America . constructed wetland are a less energy intensive and more environmentally sound way of treating waste water and conserving potable water . The first single family home constructed wetland i

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7

Li, Hong, Hong Hu Zeng, and Yan Peng Liang. "Removal of Organochlorine Pesticides in Constructed Wetlands." Applied Mechanics and Materials 692 (November 2014): 40–43. http://dx.doi.org/10.4028/www.scientific.net/amm.692.40.

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Organochlorine pesticides have had a wide and long history of applications in many countries around the world, which cause serious environmental problems. Constructed wetlands are considered an effective means of removal of organochlorine pesticides. This study describes the constructed wetland and applications of organochlorine pesticides contamination in constructed wetlands, and focuses on purification for organochlorine pesticides of microorganisms and plants in constructed wetlands. Then discussed constructed wetlands removal influence factors of organochlorine pesticides. And put forward

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8

King, Andrew C., Cynthia A. Mitchell, and Tony Howes. "Hydraulic tracer studies in a pilot scale subsurface flow constructed wetland." Water Science and Technology 35, no. 5 (1997): 189–96. http://dx.doi.org/10.2166/wst.1997.0195.

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Current design procedures for Subsurface Flow (SSF) Wetlands are based on the simplifying assumptions of plug flow and first order decay of pollutants. These design procedures do yield functional wetlands but result in over-design and inadequate descriptions of the pollutant removal mechanisms which occur within them. Even though these deficiencies are often noted, few authors have attempted to improve modelling of either flow or pollutant removal in such systems. Consequently the Oxley Creek Wetland, a pilot scale SSF wetland designed to enable rigorous monitoring, has recently been construct

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9

Li, Han, Radmila Petric, Zinah Alazzawi, et al. "Four Years Continuous Monitoring Reveals Different Effects of Urban Constructed Wetlands on Bats." Land 10, no. 10 (2021): 1087. http://dx.doi.org/10.3390/land10101087.

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Proactive artificial wetland constructions have been implemented to mitigate the loss of wetlands and their ecosystem services. As wetlands are habitats for bats, short-term (one or two years) studies find that constructed wetlands can immediately increase local bat activity and diversity. However, it is not clear how constructed wetlands affect bats through time while the wetlands are aging. We collected four years of continuous bat acoustic monitoring data at two constructed wetlands in an urban park in Greensboro, NC, USA. We examined bat activity and community composition patterns at these

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10

Li, Han, Radmila Petric, Zinah Alazzawi, et al. "Four Years Continuous Monitoring Reveals Different Effects of Urban Constructed Wetlands on Bats." Land 10, no. 10 (2021): 1087. https://doi.org/10.5281/zenodo.13449738.

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(Uploaded by Plazi for the Bat Literature Project) Proactive artificial wetland constructions have been implemented to mitigate the loss of wetlands and their ecosystem services. As wetlands are habitats for bats, short-term (one or two years) studies find that constructed wetlands can immediately increase local bat activity and diversity. However, it is not clear how constructed wetlands affect bats through time while the wetlands are aging. We collected four years of continuous bat acoustic monitoring data at two constructed wetlands in an urban park in Greensboro, NC, USA. We examined bat a

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11

Li, Han, Radmila Petric, Zinah Alazzawi, et al. "Four Years Continuous Monitoring Reveals Different Effects of Urban Constructed Wetlands on Bats." Land 10, no. 10 (2021): 1087. https://doi.org/10.5281/zenodo.13449738.

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(Uploaded by Plazi for the Bat Literature Project) Proactive artificial wetland constructions have been implemented to mitigate the loss of wetlands and their ecosystem services. As wetlands are habitats for bats, short-term (one or two years) studies find that constructed wetlands can immediately increase local bat activity and diversity. However, it is not clear how constructed wetlands affect bats through time while the wetlands are aging. We collected four years of continuous bat acoustic monitoring data at two constructed wetlands in an urban park in Greensboro, NC, USA. We examined bat a

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12

Li, Han, Radmila Petric, Zinah Alazzawi, et al. "Four Years Continuous Monitoring Reveals Different Effects of Urban Constructed Wetlands on Bats." Land 10, no. 10 (2021): 1087. https://doi.org/10.5281/zenodo.13449738.

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(Uploaded by Plazi for the Bat Literature Project) Proactive artificial wetland constructions have been implemented to mitigate the loss of wetlands and their ecosystem services. As wetlands are habitats for bats, short-term (one or two years) studies find that constructed wetlands can immediately increase local bat activity and diversity. However, it is not clear how constructed wetlands affect bats through time while the wetlands are aging. We collected four years of continuous bat acoustic monitoring data at two constructed wetlands in an urban park in Greensboro, NC, USA. We examined bat a

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13

Li, Han, Radmila Petric, Zinah Alazzawi, et al. "Four Years Continuous Monitoring Reveals Different Effects of Urban Constructed Wetlands on Bats." Land 10, no. 10 (2021): 1087. https://doi.org/10.5281/zenodo.13449738.

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(Uploaded by Plazi for the Bat Literature Project) Proactive artificial wetland constructions have been implemented to mitigate the loss of wetlands and their ecosystem services. As wetlands are habitats for bats, short-term (one or two years) studies find that constructed wetlands can immediately increase local bat activity and diversity. However, it is not clear how constructed wetlands affect bats through time while the wetlands are aging. We collected four years of continuous bat acoustic monitoring data at two constructed wetlands in an urban park in Greensboro, NC, USA. We examined bat a

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14

Li, Han, Radmila Petric, Zinah Alazzawi, et al. "Four Years Continuous Monitoring Reveals Different Effects of Urban Constructed Wetlands on Bats." Land 10, no. 10 (2021): 1087. https://doi.org/10.5281/zenodo.13449738.

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(Uploaded by Plazi for the Bat Literature Project) Proactive artificial wetland constructions have been implemented to mitigate the loss of wetlands and their ecosystem services. As wetlands are habitats for bats, short-term (one or two years) studies find that constructed wetlands can immediately increase local bat activity and diversity. However, it is not clear how constructed wetlands affect bats through time while the wetlands are aging. We collected four years of continuous bat acoustic monitoring data at two constructed wetlands in an urban park in Greensboro, NC, USA. We examined bat a

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15

Hunt, P. G., and M. E. Poach. "State of the art for animal wastewater treatment in constructed wetlands." Water Science and Technology 44, no. 11-12 (2001): 19–25. http://dx.doi.org/10.2166/wst.2001.0805.

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Although confined animal production generates enormous per-unit-area quantities of waste, wastewater from dairy and swine operations has been successfully treated in constructed wetlands. However, solids removal prior to wetland treatment is essential for long-term functionality. Plants are an integral part of wetlands; cattails and bulrushes are commonly used in constructed wetlands for nutrient uptake, surface area, and oxygen transport to sediment. Improved oxidation and nitrification may also be obtained by the use of the open water of marsh-pond-marsh designed wetlands. Wetlands normally

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16

Kadlec, R. H., and D. L. Hey. "Constructed Wetlands for River Water Quality Improvement." Water Science and Technology 29, no. 4 (1994): 159–68. http://dx.doi.org/10.2166/wst.1994.0181.

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The Des Plaines River Wetlands Demonstration Project has reconstructed four wetlands in Wadsworth, Illinois, USA. The river drains an agricultural and urban watershed, and carries a non-point source contaminant load of sediment, nutrients and agricultural chemicals. Up to 40% of the average stream flow is pumped to the wetlands, and allowed to return from the wetlands to the river through control structures followed by vegetated channels. Native wetland plant species have been established, ranging from cattail, bulrushes, water lilies, and arrowhead to duckweed and algae. Pumping began in the

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17

Persson, J., N. L. G. Somes, and T. H. F. Wong. "Hydraulics Efficiency of Constructed Wetlands and Ponds." Water Science and Technology 40, no. 3 (1999): 291–300. http://dx.doi.org/10.2166/wst.1999.0174.

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Constructed ponds and wetlands are widely used in urban design to serve a number of functions including stormwater management. The design of constructed wetlands for stormwater management involves a number of multi-disciplinary inputs. Fundamental to their sustainable operation are the proper control of the hydrologic regime of the wetland and optimal flow hydrodynamics within the wetland. Many ofthe problems encountered in constructed wetlands can be minimised or avoided by good engineering design principles. Poor wetland hydrodynamics are often identified as a major contributor to wetland ma

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18

Higgins, James, and Michael Maclean. "Technical Note — The Use of a Very Large Constructed Sub-Surface Flow Wetland to Treat Glycol-Contaminated Stormwater from Aircraft De-Icing Operations." Water Quality Research Journal 37, no. 4 (2002): 785–92. http://dx.doi.org/10.2166/wqrj.2002.053.

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Abstract All of the pollutants found in stormwater runoff at airports, including surface and aircraft de-icing/anti-icing glycols, can be treated and removed to low levels in well-designed sub-surface flow (SSF) constructed wetland systems. There are two common forms of constructed wetlands used for pollution control: those where water flows over the surface among wetland plants (free water surface or marsh type wetlands); and SSF types where the wastewater flows below the normally dry surface of a gravel substrate in which the wetland plants grow. SSF wetlands have no open water to attract wa

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19

Bao, Zhen Bo, Deng Chao Jin, and Hong Jun Teng. "Constructed Wetlands Sewage Treatment Technology Purification Mechanism and Influence Factors." Advanced Materials Research 518-523 (May 2012): 3003–6. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.3003.

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Constructed wetlands are new sewage treatment technology, which have advantages of good decontamination effect, low operating costs and easy maintenance. Base on analysis of constructed wetlands composition and purification mechanism, the constructed wetlands purification influence factors are summarized, and the problems and solutions of constructed wetlands are pointed out. Carrying out in-depth study on constructed wetlands design, operational control and maintenance management to improve comprehensive benefits of wetland sewage purification technology, have great practical significance and

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20

Gopal, Brij. "Natural and Constructed Wetlands for Wastewater Treatment: Potentials and Problems." Water Science and Technology 40, no. 3 (1999): 27–35. http://dx.doi.org/10.2166/wst.1999.0130.

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Wetlands are being considered increasingly important for wastewater treatment because of the ability of many wetland plants to absorb large amounts of nutrient and a variety of toxic substances. The paper highlights the physical, chemical and biological processes which contribute to the improvement of water quality, and the distinction between natural and constructed wetlands. The impacts of long-term wastewater disposal on the biotic changes, reduction in treatment efficiency, and wetland processes such as production of trace gases, are pointed out. Constraints in using wetlands, for wastewat

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21

Shalini, Saxena. "EFFICACY OF PHRAGMITE KARKA PLANT IN CONSTRUCTED WETLAND SYSTEM." International Journal of Research - GRANTHAALAYAH 3, no. 9 (Special Edition) (2017): 1–5. https://doi.org/10.5281/zenodo.849045.

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Wetlands, either constructed or natural, offer a cheaper and low-cost alternative technology for wastewater treatment. A constructed wetland system that is specifically engineered for water quality improvement as a primary purpose is termed as a ‘Constructed Wetland Treatment System’ (CWTS). In the past, many such systems were constructed to treat low volumes of wastewater loaded with easily degradable organic matter for isolated populations in urban areas. However, widespread demand for improved receiving water quality, and water reclamation and reuse, is currently the driving force for the i

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22

Saxena, Shalini. "EFFICACY OF PHRAGMITE KARKA PLANT IN CONSTRUCTED WETLAND SYSTEM." International Journal of Research -GRANTHAALAYAH 3, no. 9SE (2015): 1–5. http://dx.doi.org/10.29121/granthaalayah.v3.i9se.2015.3177.

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Wetlands, either constructed or natural, offer a cheaper and low-cost alternative technology for wastewater treatment. A constructed wetland system that is specifically engineered for water quality improvement as a primary purpose is termed as a ‘Constructed Wetland Treatment System’ (CWTS). In the past, many such systems were constructed to treat low volumes of wastewater loaded with easily degradable organic matter for isolated populations in urban areas. However, widespread demand for improved receiving water quality, and water reclamation and reuse, is currently the driving force for the i

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23

Saxena, Shalini. "CLEAN DEVELOPMENT MECHANISM AND CARBON CYCLING OF SEWAGE WASTE BY CONSTRUCTED WETLANDS." International Journal of Research -GRANTHAALAYAH 10, no. 4 (2022): 209–15. http://dx.doi.org/10.29121/granthaalayah.v10.i4.2022.4517.

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Wetlands, either constructed or natural, offer a cheaper and low-cost alternative technology for wastewater treatment. A constructed wetland system that is specifically engineered for water quality improvement as a primary purpose is termed as a ‘Constructed Wetland Treatment System’ (CWTS). In the past, many such systems were constructed to treat low volumes of wastewater loaded with easily degradable organic matter for isolated populations in urban areas. However, widespread demand for improve in water quality, and water reclamation and reuse, is currently the driving force for the implement

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24

Boutilier, Leah, Rob Jamieson, Robert Gordon, and Craig Lake. "Transport of Lithium Tracer and E. coli in Agricultural Wastewater Treatment Wetlands." Water Quality Research Journal 43, no. 2-3 (2008): 137–44. http://dx.doi.org/10.2166/wqrj.2008.017.

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Abstract Agricultural waste must be managed effectively to protect surface and groundwater resources, as well as human health. Constructed wetlands can provide a low-cost environmentally acceptable method for the treatment of agricultural wastewater. An ionic tracer (Lithium chloride [LiCl]) and a biotracer (a naladixic acid-resistant strain of Escherichia coli) were injected into six pilot-scale constructed wetlands treating dairy wastewater: three surface-flow (SF) wetlands and three subsurfaceflow (SSF) wetlands. Each wetland was 3.9-m long and 1.7-m wide. Residence time distribution functi

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25

Messer, Tiffany L., Trisha L, Moore, Natalie Nelson, et al. "Constructed Wetlands for Water Quality Improvement: A Synthesis on Nutrient Reduction from Agricultural Effluents." Transactions of the ASABE 64, no. 2 (2021): 625–39. http://dx.doi.org/10.13031/trans.13976.

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Abstract. Excess nutrients from agricultural settings contribute to surface water and groundwater impairment. Constructed wetlands have been widely used for water quality protection in various agricultural systems. We used a synthesis approach to document the performance of constructed wetlands for nutrient removal from a range of landscapes and geographic regions with the following objectives: (1) review the current use of constructed wetlands in agricultural applications, (2) summarize the nutrient removal efficiency of constructed wetlands, and (3) identify the geographic usage and costs as

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King, Susan K., and Stephen C. Richter. "Reproductive Ecology and Nesting Site Characteristics of Four-Toed Salamanders (Hemidactylium scutatum) in Natural and Constructed Upland-Embedded Wetlands on the Appalachian Plateau, Kentucky." Diversity 14, no. 11 (2022): 995. http://dx.doi.org/10.3390/d14110995.

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Many forested freshwater wetlands have been altered or destroyed, and wetlands are constructed to offset loss. However, they do not always replace the function of natural wetlands. It is important to understand how features of the habitat differ between types of wetlands and whether constructed wetlands provide an adequate habitat for species adapted to natural wetlands. Our objectives were to measure the characteristics of Four-toed Salamanders’ nesting habitat and determine which factors contribute to the abundance of eggs and nests in natural and constructed upland-embedded wetlands within

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27

Ling, Zhen, Ju Rui Yang, and Zhe Nai Lu. "Research on the Effect of Sewage Concentration on Treatment Efficiency of Constructed Wetlands." Advanced Materials Research 356-360 (October 2011): 1510–15. http://dx.doi.org/10.4028/www.scientific.net/amr.356-360.1510.

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By changing the surface flow(SF) and subsurface flow (SSF)constructed wetlands inflow water total nitrogen (TN) concentrations, with 6 plant species (purple leaf canna, water onion, water hyacinth, water celery, calamus, reed) in comparative experiments, comparative analysis of the 6 different SF and SSF constructed wetlands treatment rate with the variation of the concentration obtained in the 6 different plant SF and SSF constructed wetlands, the optimal concentration theory, theory of optimal removal rate, the actual optimal concentration, the actual optimal removal rate and TN maximum dail

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Berego, Yohannes Seifu, Solomon Sorsa Sota, Mihret Dananto Ulsido, and Embialle Mengistie Beyene. "Treatment Performance Assessment of Natural and Constructed Wetlands on Wastewater From Kege Wet Coffee Processing Plant in Dale Woreda, Sidama Regional State, Ethiopia." Environmental Health Insights 16 (January 2022): 117863022211427. http://dx.doi.org/10.1177/11786302221142749.

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Constructed wetlands are engineered systems built to use natural processes and remove pollutants from contaminated water in a more controlled environment. The research was an experimental research carried out to assess the effectiveness of natural and constructed wetland systems in the treatment of coffee wastewater. The 2 vertical flow constructed wetland was built. The first wetland covered an area of 132 m2. It has 12 m width and 11 m length. Open space is constructed between 2 constructed wetlands with a dimension of 11 m × 3 m × 1 m. The second wetland was constructed and its function is

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Mekonnen, Andualem, Seyoum Leta, and Karoli Nicholas Njau. "Wastewater treatment performance efficiency of constructed wetlands in African countries: a review." Water Science and Technology 71, no. 1 (2014): 1–8. http://dx.doi.org/10.2166/wst.2014.483.

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In Africa, different studies have been conducted at different scales to evaluate wastewater treatment efficiency of constructed wetland. This paper aims to review the treatment performance efficiency of constructed wetland used in African countries. In the reviewed papers, the operational parameters, size and type of wetland used and the treatment efficiency are assessed. The results are organized and presented in six tables based on the type of wetland and wastewater used in the study. The results of the review papers indicated that most of the studies were conducted in Tanzania, Egypt and Ke

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Pawęska, K., and B. Malczewska. "Nitrogen compounds in drain sewage after constructed wetlands." Water Science and Technology 60, no. 10 (2009): 2613–19. http://dx.doi.org/10.2166/wst.2009.620.

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Constructed wetlands, commonly known as ground filters, are well suited mostly for wastewater treatment in areas with no central sewage system. The basic difficulty with exploitation of constructed wetlands is connected with irregular hydraulic overload of its surface. However, irregular wastewater inflow can be reduced by cyclical irrigation which increases efficiency. The unquestionable advantage of the constructed wetlands is inexpensive construction and exploitation as well as low energy consumption. The constructed wetlands also fit very well in surrounding area. The investigation concern

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Mæhlum, T., P. D. Jenssen, and W. S. Warner. "Cold-climate constructed wetlands." Water Science and Technology 32, no. 3 (1995): 95–101. http://dx.doi.org/10.2166/wst.1995.0130.

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This paper outlines design considerations for constructed wetlands with horizontal subsurface flow treating domestic wastewater in cold climates of northern latitudes. Particular attention is devoted to the use of a filter medium with high phosphorus adsorption capacity. Experience from two Norwegian multistage systems consisting of an aerobic pretreatment step followed by constructed wetland units indicates purification processes are nearly the same during winter and summer seasons, with quite high removal of organic matter (COD, BOD), phosphorus and nitrogen.

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Pavan, S. Kamble, and Dalvi Trupti. "Wastewater Treatment using Horizontal Subsurface Flow Constructed Wetland." International Journal of Trend in Scientific Research and Development 2, no. 1 (2017): 480–82. https://doi.org/10.31142/ijtsrd6988.

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Conventional wastewater treatment systems comprising of energy intensive and mechanized treatment components require heavy investment and entail high operating costs. Constructed wetlands are accepted as a reliable wastewater treatment technology and represent an appropriate solution for the treatment of many wastewater types. A constructed wetland is a shallow basin filled with some sort of substrate, usually soil or gravel, and planted with vegetation tolerant of saturated conditions The role of constructed wetlands as environmental barrier and as a psychological separation is especially imp

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Berninger, Kati, Jari Koskiaho, and Sirkka Tattari. "Constructed wetlands in Finnish agricultural environments: balancing between effective water protection, multi-functionality and socio-economy / Małe sztuczne zbiorniki wodne w krajobrazie rolniczym Finlandii: ochrona jakości wody na tle wielozadaniowych funkcji tych zbiorników i aspektów socjalno-ekonomicznych." Journal of Water and Land Development 17, no. 1 (2012): 19–29. http://dx.doi.org/10.2478/v10025-012-0029-5.

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Abstract This case study summarizes the current knowledge in Finland on the efficiency of constructed wetlands to improve water quality at the same time providing multiple benefits. The efficiency is highly dependent on the wetland’s relative size compared to the upstream catchment area, and on the amount of agricultural land in the upstream catchment. The case study analyses the incentives designed to motivate landowners to construct wetlands in Finland such as the non-productive investment support and the agri-environment payment support for wetland management. Farmers think that the support

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Wang, Han Xi, Jian Ling Xu, Lian Xi Sheng, and Xue Jun Liu. "A Review of Research on Substrate Materials for Constructed Wetlands." Materials Science Forum 913 (February 2018): 917–29. http://dx.doi.org/10.4028/www.scientific.net/msf.913.917.

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Based on the improvements in the decontamination ability and decontamination range of constructed wetlands, this study of constructed wetland substrates was carried out using literature research and comparative meta-analysis. The results show that, for static adsorption, the absorption levels of nitrogen and phosphorus in a given constructed wetland are different. As for hydraulic load, the average removal rate of total nitrogen in wastewater is less than 50%. Compared with single substrates, a combination of substrates is typically superior in terms of the removal rate of sewage pollutants. A

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35

Hamilton, Hugh, Peter G. Nix, and André Sobolewski. "An Overview of Constructed Wetlands as Alternatives to Conventional Waste Treatment Systems." Water Quality Research Journal 28, no. 3 (1993): 529–48. http://dx.doi.org/10.2166/wqrj.1993.028.

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Abstract Constructed wetlands are an attractive alternative to conventional wastewater treatment under certain conditions. This review presents background information on wetland treatment and wetland design, and outlines the potential for wetlands to treat water contaminated with organic compounds including hydrocarbons. The major mechanisms that reduce contaminant concentrations in wetlands are sedimentation, filtration, chemical precipitation, microbial interaction and plant uptake. The presence of bacteria in “biofilms” on the enormous plant and detrital surface area in wetlands is fundamen

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Shrestha, R. R., R. Haberl, J. Laber, R. Manandhar, and J. Mader. "Application of constructed wetlands for wastewater treatment in Nepal." Water Science and Technology 44, no. 11-12 (2001): 381–86. http://dx.doi.org/10.2166/wst.2001.0855.

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Surface water pollution is one of the serious environmental problems in urban centers in Nepal due to the discharge of untreated wastewater into the river-system, turning them into open sewers. Wastewater treatment plants are almost non-existent in the country except for a few in the Kathmandu Valley and even these are not functioning well. Successful implementation of a few constructed wetland systems within the past three years has attracted attention to this promising technology. A two-staged subsurface flow constructed wetland for hospital wastewater treatment and constructed wetlands for

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Zhao, Jun, Jie Zhang, Yu Min Shi, and Xi Wang. "Researches on Constructed Wetlands Running Problems and Treatment Measures in Cold Areas." Advanced Materials Research 955-959 (June 2014): 2050–55. http://dx.doi.org/10.4028/www.scientific.net/amr.955-959.2050.

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Constructed wetland is a new type of water treatment technology which has been in great price for its characteristic including low cost, simplicity of operator and landscape value. Climatic environment and temperature has a strong influence to the wetlands which restricts the application of constructed wetlands in the northern cold areas. This paper elaborated the technical progress of constructed wetlands, analyzed the problems in the operational process of constructed wetlands located in low-temperate areas in winter, offered some solving measures which could make sure the wetlands running s

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Langergraber, G. "Simulation of subsurface flow constructed wetlands - results and further research needs." Water Science and Technology 48, no. 5 (2003): 157–66. http://dx.doi.org/10.2166/wst.2003.0308.

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Simulation of constructed wetlands has two main tasks: to obtain a better understanding of the processes in constructed wetlands, and to check and optimise existing design criteria. This paper shows simulation results for two indoor pilot-scale constructed wetlands for wastewater and surface water treatment respectively. The results presented and discussed are mainly focussed on the hydraulic behaviour of the constructed wetland systems. In addition results of reactive transport simulations with CW2D are shown. The multi-component reactive transport model CW2D (Constructed Wetlands 2 Dimension

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39

Ristola, Katherine J., Tiffany Messer, Czarena Crofcheck, Tyler J. Barzee, and Wayne Sanderson. "Wetland Treatment Systems for Municipal Wastewater at a Bourbon Distillery and Potential Value of Incorporating Stillage for Water Treatment Enhancement." Journal of Natural Resources and Agricultural Ecosystems 3, no. 2 (2025): 89–99. https://doi.org/10.13031/jnrae.16206.

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HighlightsA free-water surface treatment wetland was evaluated for water quality improvements.Nitrate-N removal rates in wetlands were 50% to 99%, depending on wetland influent.Nitrate-N removal rates in wetlands were assessed using bourbon whole stillage and found to enhance NO3-N removal.ABSTRACT. The use of constructed treatment wetlands as a secondary treatment method for wastewater effluent from package treatment plants and distillery stillage has the potential to be an innovative, sustainable method for improving water quality. However, the use of constructed wetlands to treat bourbon wh

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Worrall, P., K. J. Peberdy, and M. C. Millett. "Constructed wetlands and nature conservation." Water Science and Technology 35, no. 5 (1997): 205–13. http://dx.doi.org/10.2166/wst.1997.0199.

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By reference to examples in the UK this paper examines the wildlife potential of reedbed treatment systems, both in their ability to act as pollutant buffers to protect or create downstream wetlands of conservation importance and as wildlife resources in their own right. The constraints of size, structural diversity, pollution stresses and design criteria of constructed wetlands are evaluated in terms of wildlife conservation opportunities, and the more stringent water quality requirements for wildlife functions are discussed. As a case study example, the paper examines in detail the South Fin

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Kadlec, Robert H. "Deterministic and stochastic aspects of constructed wetland performance and design." Water Science and Technology 35, no. 5 (1997): 149–56. http://dx.doi.org/10.2166/wst.1997.0185.

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Potato processing wastewater contains high concentrations of COD, TSS and TKN. A combination of surface flow wetlands, intermittent vertical flow wetlands, ponds and land application has been used for treatment. This engineered natural system balances irrigation requirements, nitrogen supply and seasonal growth patterns to provide effective year-round operation. A first pilot wetland was operated to determine operability, effectiveness, and plant survival at high COD and nitrogen concentrations. A second pilot system of four wetlands in series was operated to obtain design and operating inform

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Li, Tianjie, Yang Jin, and Yan Huang. "Water quality improvement performance of two urban constructed water quality treatment wetland engineering landscaping in Hangzhou, China." Water Science and Technology 85, no. 5 (2022): 1454–69. http://dx.doi.org/10.2166/wst.2022.063.

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Abstract For typical wastewater treatment processes of urban sewage, plants are often noneffective to improve water qualities of lightly polluted domestic sewage, and urban constructed water quality treatment (WQT) wetlands designed with engineering landscape methods are utilized to optimize both water qualities and landscape values in recent years. The research determines the effects of two typical ecological engineering landscaping projects of urban constructed WQT wetlands by analysing their effects of wastewater quality improvements. Differences of water quality indicators (WQI) respective

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Qin, Lu Mei, Hong Hu Zeng, and Yan Peng Liang. "Research Development on Constructed Wetlands." Applied Mechanics and Materials 535 (February 2014): 388–93. http://dx.doi.org/10.4028/www.scientific.net/amm.535.388.

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Constructed wetland is a mode of economical and highly effective system applied in wastewater treatment with special removal mechanism function, which has drawn much attention over the world constantly. On the basis of study from abroad, this article makes the brief induction of removal mechanism, influential factors and combined technique of constructed wetlands, for the further research works were also put forward in the next future.

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Chen, Xinyong, Zaifeng Tian, Jing Zhu, Yihong Wu, and Qi Zhao. "Nitrogen removal characteristics of wet–dry alternative constructed wetlands." Green Processing and Synthesis 11, no. 1 (2022): 1040–51. http://dx.doi.org/10.1515/gps-2022-0090.

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Abstract Dry–wet alternate constructed wetland is an effective method to remove nitrogen elements in the tail water of sewage treatment plant. According to the reaeration mechanism of wet–dry alternative constructed wetland, the denitrification effect and influence characteristics of the dry–wet alternate constructed wetland on the tail water of sewage treatment plant were studied under low temperature. The results showed that the removal rates of each nitrogen element in the constructed wetland reached 20–40% with the dry–wet alternate time at 10°C. Under the influence of dry–wet alternation

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Graczyk, Thaddeus K., Frances E. Lucy, Leena Tamang, et al. "Propagation of Human Enteropathogens in Constructed Horizontal Wetlands Used for Tertiary Wastewater Treatment." Applied and Environmental Microbiology 75, no. 13 (2009): 4531–38. http://dx.doi.org/10.1128/aem.02873-08.

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ABSTRACT Constructed subsurface flow (SSF) and free-surface flow (FSF) wetlands are being increasingly implemented worldwide into wastewater treatments in response to the growing need for microbiologically safe reclaimed waters, which is driven by an exponential increase in the human population and limited water resources. Wastewater samples from four SSF and FSF wetlands in northwestern Ireland were tested qualitatively and quantitatively for Cryptosporidium spp., Giardia duodenalis, and human-pathogenic microsporidia, with assessment of their viability. Overall, seven species of human entero

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Gui, P., R. Inamori, M. Matsumura, and Y. Inamori. "Evaluation of constructed wetlands by wastewater purification ability and greenhouse gas emissions." Water Science and Technology 56, no. 3 (2007): 49–55. http://dx.doi.org/10.2166/wst.2007.517.

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Domestic wastewater is a significant source of nitrogen and phosphorus, which cause lake eutrophication. Among the wastewater treatment technologies, constructed wetlands are a promising low-cost means of treating point and diffuse sources of domestic wastewater in rural areas. However, the sustainable operation of constructed wetland treatment systems depends upon a high rate conversion of organic and nitrogenous loading into their metabolic gaseous end products, such as N2O and CH4. In this study, we examined and compared the performance of three typical types of constructed wetlands: Free W

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Bowles, Mason. "Reviving Urban Ecosystems with Constructed Floating Wetlands." Wetland Science & Practice 36, no. 2 (2019): 92–97. http://dx.doi.org/10.1672/ucrt083-233.

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Constructed floating wetlands (CFWs) are a highly efficient ecosystem restoration technology that can be used to improve stormwater quality and reclaim degraded urban shorelines to provide a wide variety of wetland ecosystem services. The concept of CFWs has its origins from naturally-occurring floating wetlands found around the world. They consist of a buoyant substrate that supports wetland plants growing hydroponically, with roots suspended below the water surface. They have the capacity to tolerate fluctuating water levels and variable nutrient loading and can be designed for a number of p

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Bhamidimarri, R., A. Shilton, I. Armstrong, P. Jacobson, and D. Scarlet. "Constructed Wetlands for Wastewater Treatment: The New Zealand Experience." Water Science and Technology 24, no. 5 (1991): 247–53. http://dx.doi.org/10.2166/wst.1991.0131.

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The use of constructed wetlands which mimic natural marshlands, represents an innovative approach to wastewater treatment. They make use of diverse ecological mechanisms to renovate wastewater. They are inexpensive to construct and operate with minimal energy requirements. Unlike the conventional technologies, wetlands provide low volumetric reaction rates and therefore are suitable for small-scale applications. The majority of constructed wetlands in New Zealand are used for the treatment of domestic wastewaters from small communities for secondary treatment and pathogen removal. There are ov

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Peterson, Hans G. "Use of constructed wetlands to process agricultural wastewater." Canadian Journal of Plant Science 78, no. 2 (1998): 199–210. http://dx.doi.org/10.4141/p97-142.

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Constructed wetlands are emerging as a serious challenge to conventional wastewater treatment because of lower construction and operating costs, less requirement for trained personnel, more flexibility, and lower susceptibility to variations in waste loading rates. Water quality improvements can be achieved by removal of plant nutrients, such as N and P, organics (natural and manmade) as well as inorganic contaminants. Wetland treatment is now advocated by regulatory agencies and has been determined as the technology of choice by municipalities and industries required to meet stringent dischar

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Sultana, Mar-Yam, Christos Akratos, Dimitrios Vayenas, and Stavros Pavlou. "Constructed wetlands in the treatment of agro-industrial wastewater: A review." Chemical Industry 69, no. 2 (2015): 127–42. http://dx.doi.org/10.2298/hemind150121018s.

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Due to their simplicity and low operation cost, constructed wetlands are becoming more prevalent in wastewater treatment all over the world. Their range of applications is no longer limited to municipal wastewater but has expanded to the treatment of heavily polluted wastewaters such as agro-industrial effluents. This paper provides a comprehensive literature review of the application of constructed wetlands in treating a variety of agro-industrial wastewaters, and discusses pollutant surface loads and the role of constructed wetland type, prior-treatment stages and plant species in pollutant

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