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Journal articles on the topic 'Saline water conversion – Reverse osmosis process'

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1

Stein, Shaked, Orit Sivan, Yoseph Yechieli, and Roni Kasher. "Redox condition of saline groundwater from coastal aquifers influences reverse osmosis desalination process." Water Research 188 (January 2021): 116508. http://dx.doi.org/10.1016/j.watres.2020.116508.

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2

Rosentreter, Hanna, Marc Walther, and André Lerch. "Partial Desalination of Saline Groundwater: Comparison of Nanofiltration, Reverse Osmosis and Membrane Capacitive Deionisation." Membranes 11, no. 2 (February 12, 2021): 126. http://dx.doi.org/10.3390/membranes11020126.

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Saline groundwater (SGW) is an alternative water resource. However, the concentration of sodium, chloride, sulphate, and nitrate in SGW usually exceeds the recommended guideline values for drinking water and irrigation. In this study, the partial desalination performance of three different concentrated SGWs were examined by pressure-driven membrane desalination technologies: nanofiltration (NF), brackish water reverse osmosis (BWRO), and seawater reverse osmosis (SWRO); in addition to one electrochemical-driven desalination technology: membrane capacitive deionisation (MCDI). The desalination
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3

Abdelkader, Sana, Ali Boubakri, Sven Uwe Geissen, and Latifa Bousselmi. "Direct contact membrane distillation applied to saline wastewater: parameter optimization." Water Science and Technology 77, no. 12 (June 18, 2018): 2823–33. http://dx.doi.org/10.2166/wst.2018.274.

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Abstract Freshwater availability is increasingly under pressure from growing demand, resource depletion and environmental pollution. Desalination of saline wastewater is an option for supplying households, industry and agriculture with water, but technologies such as reverse osmosis, evaporation or electrodialysis are energy intensive. By contrast, membrane distillation (MD) is a competitive technology for water desalination. In our study, response surface methodology was applied to optimize the direct contact membrane distillation (DCMD) treatment of synthetic saline wastewater. The aim was t
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4

Wang, Jingbo, Dian Tanuwidjaja, Subir Bhattacharjee, Arian Edalat, David Jassby, and Eric M. V. Hoek. "Produced Water Desalination via Pervaporative Distillation." Water 12, no. 12 (December 18, 2020): 3560. http://dx.doi.org/10.3390/w12123560.

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Herein, we report on the performance of a hybrid organic-ceramic hydrophilic pervaporation membrane applied in a vacuum membrane distillation operating mode to desalinate laboratory prepared saline waters and a hypersaline water modeled after a real oil and gas produced water. The rational for performing “pervaporative distillation” is that highly contaminated waters like produced water, reverse osmosis concentrates and industrial have high potential to foul and scale membranes, and for traditional porous membrane distillation membranes they can suffer pore-wetting and complete salt passage. I
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Kadhom, Mohammed, Noor Albayati, Suhaib Salih, Mustafa Al-Furaiji, Mohamed Bayati, and Baolin Deng. "Role of Cellulose Micro and Nano Crystals in Thin Film and Support Layer of Nanocomposite Membranes for Brackish Water Desalination." Membranes 9, no. 8 (August 15, 2019): 101. http://dx.doi.org/10.3390/membranes9080101.

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Reverse osmosis is a major process that produces soft water from saline water, and its output represents the majority of the overall desalination plants production. Developing efficient membranes for this process is the aim of many research groups and companies. In this work, we studied the effect of adding cellulose micro crystals (CMCs) and cellulose nano crystals (CNCs) to the support layer and thin film nanocomposite (TFN) membrane on the desalination performance. SEM, TEM, ATR-FTIR, and contact angle measurements were used to characterize the membrane’s properties; and membrane’s performa
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6

Saeed, Mohamed O., Ghazzai F. Al-Otaibi, and M. I. Mohamed Ershath. "Fungal and marine shell fouling in desalination plant equipment." Journal of Water Reuse and Desalination 9, no. 4 (August 13, 2019): 423–30. http://dx.doi.org/10.2166/wrd.2019.026.

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Abstract The Saudi Arabian Saline Water Conversion Corporation (SWCC) aims to maintain an uninterrupted desalinated water output and has tasked its Desalination Technologies Research Institute (DTRI) with trouble-shooting operational problems and unusual events faced by its desalination plants. Three events were reported and investigated by DTRI. Two were found to involve fungal fouling, and one was found to involve fouling by marine shells. One case of fungal fouling involved a new seawater reverse osmosis membrane and the plant was advised to review the handling and storage practice of membr
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7

Mulopo, J., and V. Radebe. "Recovery of calcium carbonate from waste gypsum and utilization for remediation of acid mine drainage from coal mines." Water Science and Technology 66, no. 6 (September 1, 2012): 1296–300. http://dx.doi.org/10.2166/wst.2012.322.

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The recovery of calcium carbonate from waste gypsum (a waste product of the reverse osmosis (RO) desalination process) was tested using sodium carbonate. Batch recovery of calcium carbonate from waste gypsum slurries by reacting with sodium carbonate under ambient conditions was used to assess the technical feasibility of CaCO3 recovery and its use for pre-treatment of acid mine drainage (AMD) from coal mines. The effect of key process parameters, such as the slurry concentration (%) and the molar ratio of sodium carbonate to gypsum were considered. It was observed that batch waste gypsum conv
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8

Caballero, Alejandro, Pablo Caballero, Federico León, Bruno Rodríguez-Morgado, Luis Martín, Juan Parrado, Jenifer Vaswani, and Alejandro Ramos-Martín. "Conversion of Whey into Value-Added Products through Fermentation and Membrane Fractionation." Water 13, no. 12 (June 9, 2021): 1623. http://dx.doi.org/10.3390/w13121623.

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The cheese whey (95% composed of water) is an effluent produced in the cheese industry, of which more than 1.5 million tons are generated in Spain, constituting a serious environmental problem. The process starts with a new fermentative/enzymatic technology that totally converts whey, mainly composed by lactose, proteins, and salts, into a fermented product with higher added value. This new product is mainly composed by lactic acid bacteria biomass, ammonium lactate, and a protein hydrolysate. To separate valuable fractions, this fermented product is processed by a two-stage membrane system, w
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9

Leandro, Maria José, Susana Marques, Belina Ribeiro, Helena Santos, and César Fonseca. "Integrated Process for Bioenergy Production and Water Recycling in the Dairy Industry: Selection of Kluyveromyces Strains for Direct Conversion of Concentrated Lactose-Rich Streams into Bioethanol." Microorganisms 7, no. 11 (November 9, 2019): 545. http://dx.doi.org/10.3390/microorganisms7110545.

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Dairy industries have a high environmental impact, with very high energy and water consumption and polluting effluents. To increase the sustainability of these industries it is urgent to implement technologies for wastewater treatment allowing water recycling and energy savings. In this study, dairy wastewater was processed by ultrafiltration and nanofiltration or ultrafiltration and reverse osmosis (UF/RO) and retentates from the second membrane separation processes were assessed for bioenergy production. Lactose-fermenting yeasts were tested in direct conversion of the retentates (lactose-ri
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10

Sharma, Nisha, Jaspal Singh, and Barjinder Kaur. "Performance Study of Some Reverse Osmosis Systems for Removal of Uranium and Total Dissolved Solids in Underground Waters of Punjab State, India." JOURNAL OF ADVANCES IN PHYSICS 4, no. 2 (April 22, 2014): 467–76. http://dx.doi.org/10.24297/jap.v4i2.2033.

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Radionuclides (uranium, thorium, radium, radon gas etc.) are found naturally in air, water, soil and rock. Everyday, we ingest and inhale these radionuclides through the air we breathe and through food and water we take. Out of the internal exposure via ingestion of radionuclides, water contributes the major portion. The natural radioactivity of water is due to the activity transfer from bed rock and soils. In our surveys carried out in the past few years, we have observed high concentrations of uranium and total dissolved solids (TDS) in drinking waters of some southern parts of Punjab State
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11

Zhang, Xin, and Danny Reible. "Exploring the Function of Ion-Exchange Membrane in Membrane Capacitive Deionization via a Fully Coupled Two-Dimensional Process Model." Processes 8, no. 10 (October 19, 2020): 1312. http://dx.doi.org/10.3390/pr8101312.

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In the arid west, the freshwater supply of many communities is limited, leading to increased interest in tapping brackish water resources. Although reverse osmosis is the most common technology to upgrade saline waters, there is also interest in developing and improving alternative technologies. Here we focus on membrane capacitive deionization (MCDI), which has attracted broad attention as a portable and energy-efficient desalination technology. In this study, a fully coupled two-dimensional MCDI process model capable of capturing transient ion transport and adsorption behaviors was developed
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12

Botha, G. R., R. D. Sanderson, and C. A. Buckley. "Brief Historical Review of Membrane Development and Membrane Applications in Wastewater Treatment in Southern Africa." Water Science and Technology 25, no. 10 (May 1, 1992): 1–4. http://dx.doi.org/10.2166/wst.1992.0232.

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Away back in 1953 few people in the world, let alone South Africa, knew or had heard about membrane desalination, but there was an increasing awareness that electrodialysis had considerable potential for the desalination of brackish water. In South Africa the development of the new gold fields in the northern Orange Free State and the problems posed by the presence of excessive volumes of very saline mine waters stimulated interest in desalination and the CSIR* in collaboration with the mining industry became involved in the development of the electrodialysis process. By 1959 the largest brack
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13

Schorr, Michael, Benjamín Valdez, Amir Eliezer, Ricardo Salinas, and Carlos Lora. "Managing corrosion in desalination plants." Corrosion Reviews 37, no. 2 (March 26, 2019): 103–13. http://dx.doi.org/10.1515/corrrev-2018-0038.

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AbstractEnvironment quality, clean energy and worldwide water scarcity have been established today as central disciplines in modern science, engineering and technology. The innovative desalination technology of saline water (SW) contributes to alleviate these problems by producing fresh water from SW, mainly seawater and brackish water. Desalination plants (DPs) have a high level of corrosion risk as they handle and process aggressive SW under severe operating conditions, which include filtration, heat exchange, distillation, evaporation, agitation and circulation and high flow velocities, oft
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14

Ciptaraharja, Iman, and Veronica S. Praptowidodo. "Membran nonofiltrasi untuk penghilangan ion valensi tinggi dan senyawa organik dari sumber air salinitas tinggi." Jurnal Teknik Kimia Indonesia 5, no. 3 (October 2, 2018): 478. http://dx.doi.org/10.5614/jtki.2006.5.3.3.

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Utilization of nanofiltration membrane for high valence ion and organic compound removing from high salinized water source.The influence of solvent selection to membrane morphology for cellulose acetate nanofiltration membrane preparation in mass transfer of a multistage reverse osmosis process is studied. Membrane is prepared via precipitation immersion technique. The polymer used in this study is cellulose acetate (CA) with a concentration of 25 %-w. The feed concentration of univalent ion solution (NaCl) is varied between 2000-16.000 mg/L. The operating pressure is adjusted such that the op
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15

Jones, Gavin O., Alexander Yuen, Rudy J. Wojtecki, James L. Hedrick, and Jeannette M. García. "Computational and experimental investigations of one-step conversion of poly(carbonate)s into value-added poly(aryl ether sulfone)s." Proceedings of the National Academy of Sciences 113, no. 28 (June 27, 2016): 7722–26. http://dx.doi.org/10.1073/pnas.1600924113.

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It is estimated that ∼2.7 million tons poly(carbonate)s (PCs) are produced annually worldwide. In 2008, retailers pulled products from store shelves after reports of bisphenol A (BPA) leaching from baby bottles, reusable drink bottles, and other retail products. Since PCs are not typically recycled, a need for the repurposing of the PC waste has arisen. We report the one-step synthesis of poly(aryl ether sulfone)s (PSUs) from the depolymerization of PCs and in situ polycondensation with bis(aryl fluorides) in the presence of carbonate salts. PSUs are high-performance engineering thermoplastics
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16

Alqaed, Saeed, Jawed Mustafa, and Fahad Awjah Almehmadi. "Design and Energy Requirements of a Photovoltaic-Thermal Powered Water Desalination Plant for the Middle East." International Journal of Environmental Research and Public Health 18, no. 3 (January 23, 2021): 1001. http://dx.doi.org/10.3390/ijerph18031001.

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Seawater or brackish water desalination is largely powered by fossil fuels, raising concerns about greenhouse gas emissions, particularly in the arid Middle East region. Many steps have been taken to implement solar resources to this issue; however, all attempts for all processing were concentrated on solar to electric conversion. To address these challenges, a small-scale reverse-osmosis (RO) desalination system that is in part powered by hybrid photovoltaic/thermal (PVT) solar collectors appropriate for a remote community in the Kingdom of Saudi Arabia (KSA) was designed and its power requir
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17

Honarparvar, Soraya, Xin Zhang, Tianyu Chen, Ashkan Alborzi, Khurshida Afroz, and Danny Reible. "Frontiers of Membrane Desalination Processes for Brackish Water Treatment: A Review." Membranes 11, no. 4 (March 29, 2021): 246. http://dx.doi.org/10.3390/membranes11040246.

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Climate change, population growth, and increased industrial activities are exacerbating freshwater scarcity and leading to increased interest in desalination of saline water. Brackish water is an attractive alternative to freshwater due to its low salinity and widespread availability in many water-scarce areas. However, partial or total desalination of brackish water is essential to reach the water quality requirements for a variety of applications. Selection of appropriate technology requires knowledge and understanding of the operational principles, capabilities, and limitations of the avail
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18

Jia, Huanfei, and Johann Poinapen. "Coal seam gas associated water treatment and management—opportunities and limitations." APPEA Journal 53, no. 1 (2013): 185. http://dx.doi.org/10.1071/aj12015.

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Coal seam gas (CSG) is a new major export for Australia. The production of CSG releases a significant amount of brackish water to the surface, known as associated water. Queensland’s Department of Environment and Heritage Protection (DEHP) has predicted that the peak yearly flow of the associated water could range between 100-280 gigalitres (GL) per year. This presents a major challenge to the CSG industry in water and its by-product (brine) management. CSG water quality varies across regions, but is typically high in total dissolved solids, bicarbonate, hardness, and silica. Consequently, CSG
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19

Tjahjono, Tri, Mehdi Ali Ehyaei, Abolfazl Ahmadi, Siamak Hoseinzadeh, and Saim Memon. "Thermo-Economic Analysis on Integrated CO2, Organic Rankine Cycles, and NaClO Plant Using Liquefied Natural Gas." Energies 14, no. 10 (May 14, 2021): 2849. http://dx.doi.org/10.3390/en14102849.

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The thermal energy conversion of natural gas (NG) using appropriate configuration cycles represents one of the best nonrenewable energy resources because of its high heating value and low environmental effects. The natural gas can be converted to liquefied natural gas (LNG), via the liquefaction process, which is used as a heat source and sink in various multigeneration cycles. In this paper, a new configuration cycle is proposed using LNG as a heat source and heat sink. This new proposed cycle includes the CO2 cycle, the organic Rankine cycle (ORC), a heater, a cooler, an NaClO plant, and rev
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20

Soares, Tales Miler, Sergio Nascimento Duarte, Cristiano Nascimento Duarte, Christiano César Dibbern Graf, Marcelo Zanetti, and Silvio Sandoval Zocchi. "IRRIGAÇÃO DE PORTA-ENXERTOS CÍTRICOS COM ÁGUAS SALINAS." IRRIGA 11, no. 3 (September 14, 2006): 428–40. http://dx.doi.org/10.15809/irriga.2006v11n3p428-440.

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IRRIGAÇÃO DE PORTA-ENXERTOS CÍTRICOS COM ÁGUAS SALINAS Tales Miler Soares1; Sergio Nascimento Duarte1; Christiano César Dibbern Graf2; Marcelo Zanetti2; Silvio Sandoval Zocchi31Departamento de Engenharia Rural, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo, Piracicaba, SP, talesmiler@bol.com.br2Citrograf Mudas, Conchal, SP3Departamento de Ciências Exatas, Escola Superior de Agricultura Luiz de Queiroz, Universidade de São Paulo, Piracicaba, SP 1 RESUMO Avaliar o desenvolvimento dos porta-enxertos limoeiro ‘Cravo’, tangerineira ‘Cleópatra’ e citrumeleiro ‘Swingle’, i
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21

Lee, Julie. "Using Reverse Osmosis, Electrodialysis, and Nanofiltration to Increase Affordable Desalinated Groundwater Use in Texas." Maneto Undergraduate Research Journal 2, no. 1 (April 23, 2019). http://dx.doi.org/10.15367/m:turj.v2i1.162.

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Droughts and flooding that have impacted Texas have decreased surface water availability, while draining the limited number of non-saline groundwater sources. Therefore, desalination of saline groundwater would be able to supplement the increasing demand of water for industrial and domestic uses. The process would have to be affordable and capable of meeting WHO1 standards for drinking water. Of the current desalination options available, the methods analyzed are reverse osmosis, electrodialysis, and nanofiltration. Of the three options, it was determined that reverse osmosis was the best solu
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22

Liang, Can Zeng, Mohammad Askari, Looh Tchuin Choong, and Tai-Shung Chung. "Ultra-strong polymeric hollow fiber membranes for saline dewatering and desalination." Nature Communications 12, no. 1 (April 20, 2021). http://dx.doi.org/10.1038/s41467-021-22684-1.

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AbstractOsmotically assisted reverse osmosis (OARO) has become an emerging membrane technology to tackle the limitations of a reverse osmosis (RO) process for water desalination. A strong membrane that can withstand a high hydraulic pressure is crucial for the OARO process. Here, we develop ultra-strong polymeric thin film composite (TFC) hollow fiber membranes with exceptionally high hydraulic burst pressures of up to 110 bar, while maintaining high pure water permeance of around 3 litre/(m2 h bar) and a NaCl rejection of about 98%. The ultra-strong TFC hollow fiber membranes are achieved mai
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23

Emdadi, Arash, Mansour Zenouzi, Amir Lak, Behzad Panahirad, Yunus Emami, Farshad Lak, and Gregory J. Kowalski. "Exergy Analysis-Potential of Salinity Gradient Energy Source." Journal of Energy Resources Technology 140, no. 7 (February 15, 2018). http://dx.doi.org/10.1115/1.4038964.

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Mixing of fresh (river) water and salty water (seawater or saline brine) in a controlled environment produces an electrical energy known as salinity gradient energy (SGE). Two main conversion technologies of SGE are membrane-based processes: pressure retarded osmosis (PRO) and reverse electrodialysis (RED). Exergy calculations for a representative river-lake system are investigated using available data in the literature between 2000 and 2008 as a case study. An exergy analysis of an SGE system of sea-river is applied to calculate the maximum potential power for electricity generation. Seawater
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