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Journal articles on the topic 'Sewage sludge Australia Drying'

Author: Grafiati

Published: 10 December 2022

Last updated: 31 July 2025

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1

Rouch, Duncan A., Tania Mondal, Sneha Pai, et al. "Microbial safety of air-dried and rewetted biosolids." Journal of Water and Health 9, no. 2 (2011): 403–14. http://dx.doi.org/10.2166/wh.2011.134.

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To assess microbial safety of treated sewage sludge (biosolids), we examined the inactivation of microbial indicators for potential bacterial, viral and protozoan pathogens. The levels of indicators were determined throughout the air-drying and storage phases of anaerobically digested sewage sludge. Samples were collected from two wastewater treatment plants (WWTPs) in Victoria, Australia. Established methods were applied for analysis of bacteria and coliphages, based on membrane filtration and layered plates, respectively. In the pan drying phase, the prevalence of Escherichia coli was reduce

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2

Kong, Frederic E., Margaret A. Deighton, Nerida A. Thurbon, Stephen R. Smith, and Duncan A. Rouch. "Cryptosporidium parvum decay during air drying and stockpiling of mesophilic anaerobically digested sewage sludge in a simulation experiment and oocyst counts in sludge collected from operational treatment lagoons in Victoria, Australia." Journal of Water and Health 16, no. 3 (2018): 435–48. http://dx.doi.org/10.2166/wh.2018.018.

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Abstract The inactivation of Cryptosporidium species oocysts during sewage sludge treatment is important to protect human health when the residual biosolids are applied to agricultural land. Quantifying the decay of Cryptosporidium species during sludge treatment for microbiological assurance purposes is difficult if low numbers are present in wastewater. The rate of decay of Cryptosporidium parvum oocysts during solar/air drying treatment and in sludge stockpiles in temperate environment conditions was simulated in laboratory inoculation experiments using sludge sampled from a mesophilic anae

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3

Siedlecka, Ewa, and Jarosław Siedlecki. "Influence of Valorization of Sewage Sludge on Energy Consumption in the Drying Process." Energies 14, no. 15 (2021): 4511. http://dx.doi.org/10.3390/en14154511.

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Valorization of digested sewage sludge generated in a medium-sized sewage treatment plant and the effect of valorization on energy consumption during sludge drying used for energy recovery are presented. Anaerobic digestion of sewage sludge reduces dry matter content compared to raw sludge. This lowers its calorific value leading to the lower interest of consumers in using it as fuel. The aim of the study was to valorize digested sewage sludge prior to drying with high-energy waste with low moisture content. The procedure led to the reduction in moisture content by about 50% in the substrate s

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4

Zhang, Hou Lei, Xin Zhi Liu, Shu Guang Zhu, and Bin Li. "Sewage Sludge Flow and Drying Characteristics in Paddle Dryers." Defect and Diffusion Forum 334-335 (February 2013): 365–68. http://dx.doi.org/10.4028/www.scientific.net/ddf.334-335.365.

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Sewage sludge from wastewater treatment is being more and more produced in many countries. For sewage sludge disposal, drying operation is usually required and greatly energy-consuming. Paddle dryers, one kind of indirect dryers, are widely used in removing moisture of sewage sludge recently, but the design, to some extent, still depends on empirical and limited data. In this paper, we presented preliminary experimental results of sewage sludge drying based on a 3 m2paddle dryer prototype. The effects of thermal oil inlet temperature on outlet moisture content and mass flowrate of initial slud

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5

C. GROSS, T. S. "Thermal Drying of Sewage Sludge." Water and Environment Journal 7, no. 3 (1993): 255–61. http://dx.doi.org/10.1111/j.1747-6593.1993.tb00843.x.

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6

Qian, Jiang, Yeong Woo Yoon, Pil Sang Youn, et al. "Drying characteristics of sewage sludge." Korean Journal of Chemical Engineering 28, no. 7 (2011): 1636–40. http://dx.doi.org/10.1007/s11814-011-0009-5.

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7

Brautlecht, P., and S. Gredigk. "Concept for an interlinked system of a sludge drying facility and a landfill for residual waste." Water Science and Technology 38, no. 2 (1998): 119–25. http://dx.doi.org/10.2166/wst.1998.0119.

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The integration of a sewage sludge drying facility into landfill operation leads to a large number of synergistic effects. Two of these modules are examined more closely in this paper. If the thermal and electric energy produced in landfill operation are used for sewage sludge drying, the drying costs will be able to be reduced and the existing resources will be used in an ecologically acceptable way throughout the year. The joint treatment of the vent condensates resulting from sewage sludge drying and of landfill leachate suggests itself because both wastewaters show a similar composition. T

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8

Zhao, Qi Gang, Ya Li Wang, Zuo Ren Nie, Hong Liu, and Su Ping Cui. "Thermal Decomposition Characteristics and Drying Process of Municipal Sludge." Materials Science Forum 898 (June 2017): 2464–69. http://dx.doi.org/10.4028/www.scientific.net/msf.898.2464.

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Using cement kiln dispose sludge from sewage plants can achieve the sludge stabilization, harmless, reduction and resource comprehensive utilization purposes. This is Not only to solve the problem of sludge treatment which is difficult to solve by sewage treatment plant, but also to make full use of the sewage treatment plant sludge to replace part of cement clinker production materials. And it makes full use of sludge incineration emitted in the process of low calorific value. Municipal sludge contains more moisture. It is necessary to dry the sludge outside the kiln before entering kiln proc

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Lee, Jae Ik, Byung Wan Jo, Yeong Seok Yoo, and Kyeong Ho Cheon. "An Experimental Study of the Characteristics of Environment-Friendly Construction Materials by Recycling Sewage Sludge Ash." Materials Science Forum 569 (January 2008): 297–300. http://dx.doi.org/10.4028/www.scientific.net/msf.569.297.

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As a basic stage for developing new construction material utilizing sewage sludge ash, this study is identified by specific material characteristics through XRD, SEM, uniaxial compressive strength, porosity, and the drying shrinkage by manufacturing mortar with sewage sludge ash. The average drying shrinkage of sewage sludge ash mortar aged 7 days showed 88% of the strain of the one aged 28 days. The porosity of sewage sludge ash mortar was about 7~10%. The more quick lime and blast furnace slag were added, the less porosity appeared.

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10

Đurđević, Dinko, Paolo Blecich, and Željko Jurić. "Energy Recovery from Sewage Sludge: The Case Study of Croatia." Energies 12, no. 10 (2019): 1927. http://dx.doi.org/10.3390/en12101927.

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Croatia produced 21,366 tonnes of dry matter (DM) sewage sludge (SS) in 2016, a quantity expected to surpass 100,000 tonnes DM by 2024. Annual production rates for future wastewater treatment plants (WWTP) in Croatia are estimated at 5.8–7.3 Nm3/people equivalent (PE) for biogas and 20–25 kgDM/PE of sewage sludge. Biogas can be converted into 12–16 kWhel/PE of electricity and 19–24 kWhth/PE of heat, which is sufficient for 30–40% of electrical and 80–100% of thermal autonomy. The WWTP autonomy can be increased using energy recovery from sewage sludge incineration by 60% for electricity and 100

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11

Hassebrauck, Martin, and Gerrit Ermel. "Two examples of thermal drying of sewage sludge." Water Science and Technology 33, no. 12 (1996): 235–42. http://dx.doi.org/10.2166/wst.1996.0341.

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The increasing amount of sewage sludge, legal requirements and a change in the assessment of common disposal paths lead more and more to thermal drying of sewage sludge. During the last years a lot of sludge drying plants in Germany were planned, built and brought into service. This paper describes two different kinds of sludge drying plants with their determining and operating values, the costs and the reasons for the choice of the drying method. The examples given are the sludge drying plant at Darmstadt (2 lines with a 2 stage dryer) and in the surrounding area of Frankfurt (1 line with a d

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12

Yu, Wan, and Pei Sheng Li. "Determine the Moisture Distribution in Sewage Sludge by Drying Differential." Applied Mechanics and Materials 665 (October 2014): 404–7. http://dx.doi.org/10.4028/www.scientific.net/amm.665.404.

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Moisture distribution in sewage sludge was considered as the essential of thermal drying. Some methods were given in literatures to test the moisture distribution, but there was no standard method to determine the critical water content between different kinds of water. The municipal sewage sludge was dried by hot air in this work. Based on the drying curve, the derivative of drying rate with respect to dry basis moisture content was brought out to analyze the moisture distribution in sewage sludge. Results show that this method can easily determine the free water, interstitial water, surface

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13

Lipolt, Andraž, Brane Širok, Marko Hočevar, and Lovrenc Novak. "Convective Drying of Sewage Sludge Layer in Through-flow." Strojniški vestnik – Journal of Mechanical Engineering 66, no. 9 (2020): 481–93. http://dx.doi.org/10.5545/sv-jme.2020.6717.

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Drying of the sewage sludge layer was investigated in a convective laboratory dryer at air temperatures of 65 °C and 80 °C and air speeds of 0.53 m/s and 0.83 m/s. The sludge layer was formed by loading cylindrical extrudates on a grate of 0.5 m × 0.5 m size. The drying air was directed through the layer, as typically encountered in industrial belt dryers. Under such setup, the sludge layer structure and porosity significantly affect the air flow conditions and thus the drying rates. Shrinkage and cracking of the material during drying caused changes in the layer’s porous structure, that affec

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14

Sorrenti, Alice, Santo Fabio Corsino, Francesco Traina, Gaspare Viviani, and Michele Torregrossa. "Enhanced Sewage Sludge Drying with a Modified Solar Greenhouse." Clean Technologies 4, no. 2 (2022): 407–19. http://dx.doi.org/10.3390/cleantechnol4020025.

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This work reports the results obtained with an innovative configuration of a closed-static solar greenhouse for sludge drying. The novelty of the solar greenhouse configuration consisted in using a forced ventilation system to provide hot air for sludge drying and the utilization of solar irradiation for energy supply. Wet sewage sludge (97% humidity) was successfully dried up to a residual humidity close to 5% after 25 days during wintertime. The increase of the airflow rate supplied under the sludge bed improved the sludge drying rate. Moreover, the fraction of volatile suspended solids decr

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15

Berroug, Fatiha, Yassir Bellaziz, Zakaria Tagnamas, et al. "Drying Performance of a Combined Solar Greenhouse Dryer of Sewage Sludge." Sustainability 16, no. 22 (2024): 9925. http://dx.doi.org/10.3390/su16229925.

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The solar drying of sewage sludge in greenhouses is one of the most used solutions in wastewater treatment plants (WWTPs). However, it presents challenges, particularly in terms of efficiency and drying time. In this context, the present study explores the drying performances of an innovative Combined Solar Greenhouse Dryer (CSGD) for sewage sludge. The system integrates rock bed storage (RBS), a solar air collector (SAC), and a solar greenhouse dryer (SGD). A numerical model, developed using TRNSYS software, predicts the drying kinetics of sewage sludge through hourly dynamic simulations base

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16

Idris, A., O. B. Yen, M. H. A. Hamid, and A. M. Baki. "Drying kinetics and stabilization of sewage sludge in lagoon in hot climate." Water Science and Technology 46, no. 9 (2002): 279–86. http://dx.doi.org/10.2166/wst.2002.0259.

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A sludge lagoon has been adopted as a simple and cost effective method for dewatering of sludge. The processes occurring in a sludge lagoon include thickening, dewatering, storage and stabilization; all happening simultaneously. The objective of this study is to determine the dewatering and drying rates at pilot-scale which occur in a lagoon having different design configurations. Two types of sludge lagoons with different initial sludge depth (0.75 m and 0.375 m) were investigated to measure the drying behavior and drying efficiency. The first design is a sludge lagoon with a clay bottom wher

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17

Rećko, Krzysztof. "Production of Alternative Fuels Based on Sewage Sludge." Energies 17, no. 1 (2023): 48. http://dx.doi.org/10.3390/en17010048.

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Due to the growing demand for energy, conventional fossil fuels are being depleted. Reducing dependence on energy sources based on fossil fuels is possible by using the energy potential of biomass. Sewage sludge deserves special attention. The increase in the amount of sewage sludge produced around the world poses a serious problem with its management. The use of sewage sludge to produce fuel with the possibility of energy recovery seems to be an excellent solution. The article presents the results of laboratory tests on the production of fuel in the form of granulates from mixed sewage sludge

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18

Wzorek, Małgorzata. "Solar drying of granulated waste blends for dry biofuel production." Environmental Science and Pollution Research 28, no. 26 (2021): 34290–99. http://dx.doi.org/10.1007/s11356-021-12848-3.

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AbstractIn the paper, results of drying biofuels from sewage sludge using solar energy are presented. Drying rates of biofuels made from sewage sludge and coal slime (PBS), sewage sludge and meat and bone meal (PBM), and sewage sludge and sawdust (PBT) with 15-mm and 35-mm granule particle size were studied. Tests were performed in a solar greenhouse dryer equipped with a specially designed mixing system. Experiments were aimed at determining the drying time of biofuels under various weather conditions in the southwestern part of Poland. In summer, in order to determine the best conditions for

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19

Houssayne, Bougayr El, Lakhal El Khadir, Ali Idlimam, et al. "Experimental Study and Modeling of Drying Kinetics and Evaluation of Thermal Diffusivity of Sewage Sludge." Key Engineering Materials 954 (August 31, 2023): 55–71. http://dx.doi.org/10.4028/p-d2lnmz.

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This article discusses the use of solar dryers as a method for stabilizing and reducing the volume of residual sludge produced by wastewater treatment facilities. The study focused on the convective drying behavior of sewage sludge produced by the wastewater treatment plant of Meknes City under convective solar drying. The study aimed to investigate the drying kinetics of sewage sludge and emphasize the effect of temperature and water content on the evolution of the drying rate. The measured water content values showed a decrease as drying time increased. The results revealed the presence of p

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20

SASAOKA, NOBUTAKA, KATSUNORI YOKOI, and TAKASHI YAMANAKA. "BASIC STUDY OF CONCRETE MADE USING ASH DERIVED FROM THE INCINERATING SEWAGE SLUDGE." International Journal of Modern Physics B 20, no. 25n27 (2006): 3716–21. http://dx.doi.org/10.1142/s0217979206040258.

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Sewage sludge incinerated ash is discharged as waste. Those are increasing with progress of a sewage enterprise every year. However, the reservation of the last disposal place for reclaiming the generated incineration ash is becoming quickly difficult. In this situation of sewage sludge processing, it is very important to promote more reducing and development of new reusing method. Recently, in the construction industry, reusing technology that was used sewage sludge incinerated ash as aggregate for concrete products is developed. But there are many unknown points in the performance and durabi

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21

Wei, Na. "Municipal Sewage Sludge Drying Treatment by an Composite Modifier." Mathematical Problems in Engineering 2012 (2012): 1–10. http://dx.doi.org/10.1155/2012/979764.

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A sludge composite modifier (SCM) which comprises a mixture of three cementitious components was proposed for sludge drying and stabilization. Effect of SCM components on sludge moisture content was analyzed using uniform design and the optimum composition of SCM was determined by computer-aided modeling and optimization. To compare the drying effect of SCM, quicklime, and Portland cement, the effects of material content and curing time on moisture content of sludge were also studied. The results showed that the optimum ratio of modifier component was slag/cement clinker/dihydrate gypsum = 0.6

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22

Guo, Hongyan, Zhiwei Tan, Haiying Li, Yue Long, Aimin Ji, and Liangxu Liu. "Dynamic Characteristics Analysis of Metallurgical Waste Heat Radiative Drying of Thin Layers of Sewage Sludge." Processes 11, no. 9 (2023): 2535. http://dx.doi.org/10.3390/pr11092535.

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The utilization of metallurgical waste heat for urban sludge drying and dewatering not only affects the subsequent cost of sludge treatment but also provides a pathway for the rational utilization of metallurgical waste heat. The influence of different experimental conditions on sludge drying characteristics, such as drying temperature and thickness, was analyzed based on metallurgical waste heat. Based on the analysis and evaluation of the drying kinetics parameters of commonly used drying mathematical models, a modified Midilli drying kinetic model is proposed. The kinetic parameters and eff

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23

Wang, Hui-Ling, Zhao-Hui Yang, Jing Huang, et al. "The thin-layer drying characteristics of sewage sludge by the appropriate foaming pretreatment." Water Science and Technology 69, no. 9 (2014): 1859–66. http://dx.doi.org/10.2166/wst.2014.093.

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As dewatered sludge is highly viscous and sticky, the combination of foaming pretreatment and drying process seems to be an alternative method to improve the drying performance of dewatered sludge. In this study, CaO addition followed by mechanical whipping was employed for foaming the dewatered sludge. It was found that the foams were stable and the diameters of bubbles mainly ranged from 0.1 to 0.3 mm. The drying experiments were carried out in a drying oven in the convective mode. The results indicated that foamed sludge at 0.70 g/cm3 had the best drying performance at each level of tempera

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El-Gendy, A. S., H. I. El-Kassas, T. M. A. Razek, and H. Abdel-Latif. "Phyto-dewatering of sewage sludge using Panicum repens L." Water Science and Technology 75, no. 7 (2017): 1667–74. http://dx.doi.org/10.2166/wst.2017.039.

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Experiments in the field environment have been conducted to study the growth of Panicum repens L., an aquatic plant, in the sewage sludge matrix. The experiments were also carried out to investigate the ability of this plant to dewater sewage sludge to increase the capacity of conventional drying beds. In addition, the ability of Panicum repens L. to reduce the sludge contents of certain elements (copper (Cu), Iron (Fe), Sodium (Na), lead (Pb), and Zinc (Zn)) was also investigated. All experiments were carried out in batch reactors. Different plant coverage densities were tested (0.00 to 27.3

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Grüter, H., M. Matter, K. H. Oehlmann, and M. D. Hicks. "Drying of Sewage Sludge – An Important Step in Waste Disposal." Water Science and Technology 22, no. 12 (1990): 57–63. http://dx.doi.org/10.2166/wst.1990.0100.

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Industrial drying techniques are successfully used processes. They are usually used for the production of base materials for industries such as food, chemical and pharmaceutical. These processes can be transferred without any difficulty for the drying of sewage sludge. Thermal drying as a process for the purpose of water removal is an important link in waste management between sludge production and sludge disposal. Two systems, convection and contact drying, are here compared. Contact drying in the thin film evaporation process is explained. Explanation and proposed uses of the single and two-

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26

Wei, Na. "Sewage Sludge Solidification by Slag-Based Modifier for Landfill Cover." Advanced Materials Research 113-116 (June 2010): 425–28. http://dx.doi.org/10.4028/www.scientific.net/amr.113-116.425.

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A slag-based composite modifier(SBCM) was proposed for more effective sludge drying and solidification. The optimum composition of SBCM was determined by Uniform design and corresponding mathematical modeling. Sludge drying experiments were performed and the effectiveness of sludge solidification was examined using Chinese leaching toxicity test. The experimental results showed that optimized-SBCM behaved better than quicklime in sludge semi-drying and the leaching concentrations of heavy metal of SBCM-solidified products were lower than the sudge-quicklime mixture. Besides, microscopic analys

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27

Krawczyk, Piotr. "Cumulative ventilation air drying potential as an indication of dry mass content in wastewater sludge in a thin-layer solar drying facility." Archives of Thermodynamics 34, no. 4 (2013): 23–34. http://dx.doi.org/10.2478/aoter-2013-0027.

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Abstract Controlling low-temperature drying facilities which utilise nonprepared air is quite difficult, due to very large variability of ventilation air parameters - both in daily and seasonal cycles. The paper defines the concept of cumulative drying potential of ventilation air and presents experimental evidence that there is a relation between this parameter and condition of the dried matter (sewage sludge). Knowledge on current dry mass content in the dried matter (sewage sludge) provides new possibilities for controlling such systems. Experimental data analysed in the paper was collected

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Li, Jin Ping, Meng Yao Li, Wen Yao, and Ni Wang. "Study on Microwave Drying Process and Drying Characteristics of Sewage Sludge." Advanced Materials Research 838-841 (November 2013): 2643–47. http://dx.doi.org/10.4028/www.scientific.net/amr.838-841.2643.

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Combination of oven and microwave and only oven are two ways to study municipal sludge,and it investigates whether different size, microwave drying pretreatment, pretreatment time and oven temperature characteristics have effect on drying characteristics. The results shows that: using microwave to dry sludge need short time, the drying rate is fast, combination of oven and microwave has higher drying rate and lower energy consumption than only oven.

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Lima, Márcia Regina Pereira, Eliana Zandonade, and Pedro Alem Sobrinho. "Characteristics of WWTP sludge after drying in greenhouse for agricultural purposes." Water Science and Technology 66, no. 7 (2012): 1460–66. http://dx.doi.org/10.2166/wst.2012.326.

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The sludge generated by sewage treatment which meets regulatory standards can be used in agriculture. With this understanding, the focus of this study is the evaluation of the agricultural characteristics and inorganic substances in excess activated sludge, which was subjected to drying in a greenhouse. The variables (factor) evaluated during the drying process were: type of sludge (digested or not digested), addition of lime to the sludge, and the physical layout and rotation of sludge in the greenhouse. The parameters monitored for this assessment were moisture, volatile solids and pH. The g

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Brechtel, Heinz, and Hartmut Eipper. "Improved Efficiency of Sewage Sludge Incineration by Preceding Sludge Drying." Water Science and Technology 22, no. 12 (1990): 269–76. http://dx.doi.org/10.2166/wst.1990.0121.

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Normally, mechanical dewatering of sewage sludges is not sufficient for a self-supporting combustion, even if combustion is ensured in the fluidized bed furnace. The heat balance can be compensated by firing additional fuels of higher calorific value and a preceding sludge drying using the heat, which is generated during combustion. The most favoured solution is an indirect drying in special equipment adapted to the state of the sewage sludge to be burnt. Heating surfaces and the steam transfer the thermal energy of the flue gases to the mechanically dewatered sludge. The development of malodo

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Šálek, Jiří. "The exploitation of swamp plants for dewatering liquid sewage sludge." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 54, no. 2 (2006): 107–16. http://dx.doi.org/10.11118/actaun200654020107.

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The operators of little rural wastewater treatment plants have been interested in economic exploitation of sewage sludge in local conditions. The chance is searching simply and natural ways of processing and exploitation stabilized sewage sludge in agriculture. Manure substrate have been obtained by composting waterless sewage sludge including rest plant biomass after closing 6–8 years period of filling liquid sewage sludge to the basin. Main attention was focused on exploitation of swamp plants for dewatering liquid sewage sludge and determination of influence sewage sludge on plants, intensi

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Werle, Sebastian, and Mariusz Dudziak. "Influence of Wastewater Treatment and The Method of Sludge Disposal on the Gasification Process." Ecological Chemistry and Engineering S 21, no. 2 (2014): 255–68. http://dx.doi.org/10.2478/eces-2014-0020.

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Abstract Municipal wastewater treatment results in the production of large quantities of sewage sludge, which requires proper environmentally accepted management before final disposal. Sewage sludge is a by-product of current wastewater treatment technologies. Sewage sludge disposal depends on the sludge treatment methods used in the wastewater treatment plant (anaerobic or aerobic digestion, drying, etc.). Taking into consideration presented given this information, a study concerning the effects of wastewater treatment processes and sewage sludge drying method on the sewage sludge gasificatio

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Gu, Zhipan, Jichun Yang, Jing Liu, Leren Tao, Ye Zhang, and Lihao Huang. "Study on Sewage Sludge Drying System With Built-in Solar Drying Bed." E3S Web of Conferences 237 (2021): 01041. http://dx.doi.org/10.1051/e3sconf/202123701041.

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In this paper, the renewable energy solar energy is used as the heat source. The combination of solar drying bed and traditional hot air drying can effectively reduce energy consumption and operation cost. The drying chamber is divided into three layers. The top air supply outlet supplies hot air, the middle layer places wet sludge, and the bottom layer uses hot water coil to dry the sludge. The whole drying process is a heat and mass transfer process with convective heat transfer and radiation heat transfer. After analysis and comparison with traditional energy drying, it is found that drying

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Sun, Xiaofeng, Shifu Ge, Yang Yu, and Qixiang Zhu. "Drying Characteristics and Odor Concentration in Tail Gas in Vacuum Drying of Municipal Sewage Sludge." E3S Web of Conferences 385 (2023): 03014. http://dx.doi.org/10.1051/e3sconf/202338503014.

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As one of the most common solid wastes, municipal sewage sludge needs to be dried before its disposal and resource reuse. In this study, the effects of vacuum degree, heat source temperature and sludge thickness on drying rate and odor concentration in tail gas were studied through orthogonal experiments carried out on the lab-scale vacuum heat-conductive sludge drying device; The effects of heat source temperature on drying rate and odor concentration in tail gas were studied through comparative experiments of atmospheric state and vacuum state (-0.08MPa). The results show that the sludge thi

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Ayoub, Mohamed, Ibrahim Gar Al-Alm Rashed, and Ahmed El-Morsy. "Energy Production from Sewage Sludge in a Proposed Wastewater Treatment Plant." Civil Engineering Journal 2, no. 12 (2016): 637–45. http://dx.doi.org/10.28991/cej-2016-00000064.

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The implemented technologies for sewage sludge processing are still very limited in Egypt. Unfortunately, dealing with the produced sludge is mainly given to the drying process through natural drying beds neglecting quality of the dried sludge. The undertaken work is devoted to provide a design proposal for a typical wastewater treatment plant suitable for the small communities on a very limited area of land compared to that required to construct the conventional treatment plant that serves the same population. The proposed sewage treatment plant is certainly beneficial in reducing the capital

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Kujawiak, Sebastian, Małgorzata Makowska, Damian Janczak, et al. "An Analysis of the Physicochemical and Energy Parameters of Briquettes Manufactured from Sewage Sludge Mixtures and Selected Organic Additives." Energies 17, no. 18 (2024): 4573. http://dx.doi.org/10.3390/en17184573.

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As a by-product of wastewater treatment, sewage sludge can be used for natural, agricultural, or energy purposes. One method of preparing sludge for management and use is solar drying. To intensify the drying process, natural additives can be used to alter the structure of the sludge and accelerate the evaporation of water. This research aimed to evaluate the influences of different organic additives in sewage sludge mixtures on the physicochemical and energy parameters of briquettes. This research was carried out without thermal boosting in a 4 × 2.5 × 2 m plastic tunnel. The tunnel was equip

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Li, Xue, Lingyu Wang, Jing Huang, Huishuang Yi, Zhiming Xu, and Hao Zhou. "Performance of rice straw fiber improving the drying of waste activated sludge." E3S Web of Conferences 267 (2021): 02042. http://dx.doi.org/10.1051/e3sconf/202126702042.

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The high moisture content of the excess sludge in the sewage treatment plant has brought great difficulties to the subsequent treatment. In this study, rice straw fiber was collected as a conditioner for adding to the sludge. The effect of different grain diameter and dosages of straw fiber on sludge drying efficiency were investigated under different temperatures. Drying temperature is one of the most important factors affecting sludge drying rate. Compared with the original sludge, the drying efficiency of sludge adding rice straw fiber was higher. The effect of 35-80 straw fiber was 20%, an

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Onaka, T. "Sewage can make Portland cement: a new technology for ultimate reuse of sewage sludge." Water Science and Technology 41, no. 8 (2000): 93–98. http://dx.doi.org/10.2166/wst.2000.0147.

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From the viewpoint of environmental and energy problems, it is desirable that the organic and inorganic components of sewage sludge can be reused cost-effectively. A process is described which can meet this need. The process was investigated in a large-scale industrial trial, involving the pelletizing-drying of sewage sludge, combined with burning in a Portland cement kiln. Special attention was paid to product quality; plant safety; simple operation and maintenance; ability to process different sludge and water contents; and low consumption of energy. There were no odour and dust emissions. T

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ALTUN, Mehmet, Abdoul Nasser Aboubacar DAN BADAOU, Azize DOGAN DEMIR, Ustun SAHIN, Fatih Mehmet KIZILOGLU, and Serap DILER. "IMPROVEMENT OF THE HYDRAULIC PROPERTIES OF SALINE-SODIC SOIL EXPOSED TO FREEZING-THAWING USING SEWAGE SLUDGE AND WETTING-DRYING PROCESS WITH WASTEWATER." Carpathian Journal of Earth and Environmental Sciences 18, no. 1 (2023): 37–50. http://dx.doi.org/10.26471/cjees/2023/018/239.

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Soil improvement practices are needed to protect weakly aggregated saline-sodic soils in cold regions from the negative effects of freezing-thawing events. Amelioration of these soils by adding sewage sludge and applying wetting–drying process with wastewater can be a practical application due to aggregation to be increased with increase in organic matter. Therefore, a laboratory experiment has been conducted to determine the effects on soil properties with three stabilized sewage sludge doses (0, 50, 100 Mg ha−1), two freeze-thaw cycles (5 and 10 times), two wetting-drying intervals (4 and 8

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Qian, Li Li, Shu Zhong Wang, and Xing Ying Tang. "Experimental Study on Hydrothermal Treatment of Municipal Sewage Sludge." Applied Mechanics and Materials 448-453 (October 2013): 693–98. http://dx.doi.org/10.4028/www.scientific.net/amm.448-453.693.

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Wastewater treatment plants produced large amounts of municipal dewatered sewage sludge with about 80wt% moisture content. High moisture content is the bottleneck of sludge treatment and disposal. Hydrothermal treatment could economically disrupt sludge cells, release bound water and finally improve sludge dewaterability instead of thermal drying technology with high energy consumption. In this paper, hydrothermal treatment experiments were carried out and the combustion performance of the original sewage sludge and the hydrothermal treatment sewage sludge was analyzed to verify the possibilit

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Huang, Bing Zhang, Xi Qiang Li, Ji Zhen Zhu, Bang Biao Huang, Hai Long Wu, and Qiong Qiong Guan. "Effect of Temperature on the Quality of City Sewage Sludge Shale Brick Products." Advanced Materials Research 790 (September 2013): 316–19. http://dx.doi.org/10.4028/www.scientific.net/amr.790.316.

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[Objective] Research on city sewage sludge shale brick in the firing process of crack formation reason, control cracks in the firing process of the brick body, thereby improving the brick product quality, summed up the law of temperature on product quality of city sewage sludge shale brick.[Methods] In order to shale and city sludge as raw material by make bricks, drying and sintering procedure different, to analyze the reason of brick in the process of drying cracks and cracks during the roasting process.[Results] The experimental results show that in the stage of drying and preheating stage

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Mondal, Tania, Duncan A. Rouch, Nerida Thurbon, Stephen R. Smith, and Margaret A. Deighton. "Factors affecting decay of Salmonella Birkenhead and coliphage MS2 during mesophilic anaerobic digestion and air drying of sewage sludge." Journal of Water and Health 13, no. 2 (2014): 459–72. http://dx.doi.org/10.2166/wh.2014.313.

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Factors affecting the decay of Salmonella Birkenhead and coliphage, as representatives of bacterial and viral pathogens, respectively, during mesophilic anaerobic digestion (MAD) and air drying treatment of anaerobically digested sewage sludge were investigated. Controlled concentrations of S. Birkenhead were inoculated into non-sterile, autoclaved, γ-irradiated and nutrient-supplemented sludge and cultures were incubated at 37 °C (MAD sludge treatment temperature) or 20 °C (summer air drying sludge treatment temperature). Nutrient limitation caused by microbial competition was the principal m

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Silva, D. P., V. Rudolph, and O. P. Taranto. "The drying of sewage sludge by immersion frying." Brazilian Journal of Chemical Engineering 22, no. 2 (2005): 271–76. http://dx.doi.org/10.1590/s0104-66322005000200015.

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Hwang, Gyu-Wan, Hak-I. Kim, Hyun-Seo Park, and Cheol Gyu Kim. "Controlling the Composite Odour from Drying Sewage Sludge." Asian Journal of Chemistry 29, no. 5 (2017): 1135–40. http://dx.doi.org/10.14233/ajchem.2017.20456.

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Zhu, Fenfen, Zhaolong Zhang, Huimin Jiang, and Luyao Zhao. "The Study of Sewage Sludge Thermo-Drying Efficiency." Procedia Environmental Sciences 16 (2012): 363–67. http://dx.doi.org/10.1016/j.proenv.2012.10.052.

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LOWE, P. "Developments in the Thermal Drying of Sewage Sludge." Water and Environment Journal 9, no. 3 (1995): 306–16. http://dx.doi.org/10.1111/j.1747-6593.1995.tb00944.x.

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Haberl, R., and Ch Salzer. "Dewatering of Sewage Sludge with Vacuum Assisted Sludge Dewatering Beds." Water Science and Technology 26, no. 9-11 (1992): 2273–76. http://dx.doi.org/10.2166/wst.1992.0714.

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The “Rapid Sludge Dewatering System (RSDS)”, in which the sludge is dewatered by way of vacuum supported sludge drying beds, was tested for performance, efficiency and applicability. Generally, the RSD-System can be regarded as an alternative to other sludge dewatering systems, especially for small purification plants, for agricultural use and composting of sewage sludge. It is also applicable for (industrial) sludge with a high percentage of grease or coarse materials.

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Wang, Guangyu, Kai Zhang, Bocheng Huang, Kaihua Zhang, and Cong Chao. "Microwave Drying of Sewage Sludge: Process Performance and Energy Consumption." Processes 12, no. 3 (2024): 432. http://dx.doi.org/10.3390/pr12030432.

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The microwave drying of sewage sludge is characterized by its speed and safety. A novel method for identifying free and bound water is proposed in this study. Experiments were performed to investigate the process performance and energy consumption in a microwave drying unit. The results indicate that the microwave drying process can be described in three stages, i.e., the preheating stage, constant-rate stage, and decreasing-rate stage. The preheating and constant-rate stages mainly remove free water, while the decreasing-rate stage mainly removes bound water. The Linear model effectively desc

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Zhou, Jiazhen, Ruina Zhang, Xing Wang, et al. "NaHCO3-enhanced sewage sludge thin-layer drying: Drying characteristics and kinetics." Drying Technology 35, no. 10 (2016): 1276–87. http://dx.doi.org/10.1080/07373937.2016.1249878.

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Mihelič, Erik, Dušan Klinar, Klavdija Rižnar, and Primož Oprčkal. "Analyzing and Modeling the Municipal Sewage Sludge Drying Process Using Python." Processes 11, no. 12 (2023): 3263. http://dx.doi.org/10.3390/pr11123263.

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The programming language Python offers the opportunity to analyze and model the municipal sewage sludge (MSS) drying process in an illustrative chemical engineering practice. The drying process is performed on a flat plate while maintaining a uniform, parallel drying air speed. The Python program helps to analyze the digitalized weight measurements from each sample. The program enables the sorting of input data, determination of the drying critical point, and evaluation of the first and second drying periods. Moreover, the model calculates the fundamental drying parameter and forms a drying ma

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