Application of forward osmosis in reusing the brackish concentrate produced in reverse osmosis plants with secondary treated wastewater as feed solution: a case study

Wang, W. D.; Esparra, M.; Liu, H.; Xie, Yuefeng F.

doi:10.2166/wrd.2016.097

Cited by 3 publications

(1 citation statement)

References 29 publications

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“…Generally, this potential of water reflect an increased risk of drought in some parts of the country, even in normal conditions, especially in the south and southeast, has created vast problems of water supply requirements. According to available statistics, indiscriminate withdrawal of groundwater sources leading to a further decline in groundwater levels and some plains, mostly in central and eastern of Iran, are facing serious saltwater [5,6]. The problem evaporative processes (MSF and MED), in addition to high energy consumption, is high deposition and corrosion which is controlled only by a skilled operator [7].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Carbon Aerogel Manufacturing Process in Order to Desalination of Saline and Brackish Water in Laboratory Scale

2018

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Carbon aerogel its fabrication and characterization and its uses in this process were studied for desalinating of saline and brackish water. The carbon aerogel manufacturing process involves the polymerization and pyrolysis of the mixture of resorcinol and formaldehyde. Carbon aerogels were analyzed using BET, BJH, and T-plot after construction. The effect of various parameters (including the influent salt concentration, the intensity of electric current flow, the distance between the electrodes and pH) on salt adsorption were studied. Analysis of BET/BJH shown that the surface of aerogel was 677.8 m 2 /g. much of porosity in the samples of carbon aerogel were between 1-2 nm, namely micro-pour and a similar level 0f 456 m 2 /gr is dedicated to micro-pour, with a correlation coefficient (r) equal to 94.5. According to the results, it seems that carbon aerogel electrodes have a good structure in desalination of brackish and saline water.

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Section: Introductionmentioning

confidence: 99%

Evaluation of Carbon Aerogel Manufacturing Process in Order to Desalination of Saline and Brackish Water in Laboratory Scale

2018

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Forward osmosis membrane process: A review of temperature effects on system performance and membrane parameters from experimental studies

Anh-Vu,

Nomura,

Hidaka

et al. 2024

Journal of Environmental Chemical Engineering

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Volume reduction and water reclamation of reverse osmosis concentrate from coal chemical industry by forward osmosis with an osmotic backwash strategy

Wang

2020

Water Science and Technology

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Coal chemical industry (CCI) generally utilizes reverse osmosis (RO) for water reclamation, which generates a highly concentrated stream containing refractory organic substances and high-concentration total dissolved solids (TDS). To address this issue, the present work focuses on volume reduction of RO concentrate (ROC) produced from CCI by forward osmosis (FO). We investigated the effects of membrane orientation and draw solution (DS) concentration on FO performance. Foulant removal was tested by using chemical cleaning, physical cleaning and osmotic backwash (OB). AL-FS (active layer facing feed solution) mode outcompeted AL-DS (active layer facing draw solution) mode, achieving a flux of 26.4 LMH, 92.5% water reclamation and energy consumption of 0.050 kWh·m−3 with 4 M NaCl as DS. The FO process was able to reject >98% SO42−, Mg2+and Ca2+, 92–98% Si and 33–55% total organic carbon (TOC). Ten-cycle (10 × 20 h) accelerated fouling test demonstrated approximately 30% flux decline in association with Si-containing foulants which could be removed almost completely through OB with 97.1% flux recovery. This study provides a proof-of-concept demonstration of FO for volume reduction and water reclamation of ROC produced from CCI, making the treatment of ROC more efficient and more energy effective.

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Application of forward osmosis in reusing the brackish concentrate produced in reverse osmosis plants with secondary treated wastewater as feed solution: a case study

Abstract: This study evaluated the feasibility of forward osmosis (FO) in diluting and reusing the concentrate produced in a reverse osmosis (RO) plant in James City County, VA. Secondary treated wastewater

Cited by 3 publications

References 29 publications

Evaluation of Carbon Aerogel Manufacturing Process in Order to Desalination of Saline and Brackish Water in Laboratory Scale

Evaluation of Carbon Aerogel Manufacturing Process in Order to Desalination of Saline and Brackish Water in Laboratory Scale

Forward osmosis membrane process: A review of temperature effects on system performance and membrane parameters from experimental studies

Volume reduction and water reclamation of reverse osmosis concentrate from coal chemical industry by forward osmosis with an osmotic backwash strategy

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