Combination and performance of forward osmosis and membrane distillation (FO-MD) for treatment of high salinity landfill leachate

Zhou, Yingru; Huang, Manhong; Deng, Qian; Cai, Teng

doi:10.1016/j.desal.2017.06.027

Cited by 89 publications

(33 citation statements)

References 35 publications

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“…6,7 Additionally, leachate treatment is inuenced by the production effluent and the quality of RO and NF technology. 8 Membrane technology can effectively decrease the COD, BOD 5 , and total nitrogen content; [9][10][11] however, it is constrained by the limited service life of RO and NF membranes and by the increasing treatment expense due to membrane pollution by extremely high concentrations of humic acid and fulvic acid. 12 Coagulation is widely applied to the pretreatment of concentrated leachate because of its convenient operation and its low cost; however, it is not very effective in removing organics in concentrated leachate.…”

Section: Introductionmentioning

confidence: 99%

Degradation of recalcitrant organics in landfill concentrated leachate by a microwave-activated peroxydisulfate process

Chen

et al. 2018

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

Degradation of recalcitrant organics in landfill concentrated leachate by a microwave-activated peroxydisulfate process

Chen

et al. 2018

RSC Adv.

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“…FO, combined with microbial desalination cells also proved to be feasible to concentrate leachate and recover nitrogen [ 182 , 183 ]. Several other studies demonstrated the positive impact of FO as part of the leachate treatment line to produce fresh water and remove contaminants within the FO–MD hybrid, in FO-fertigation or as a post-treatment of the MBR permeate, even though the CF in FO is not generally mentioned [ 184 , 185 , 186 ].…”

Section: Applications Of Fo As Concentrating Processmentioning

confidence: 99%

Forward Osmosis as Concentration Process: Review of Opportunities and Challenges

et al. 2020

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In the past few years, osmotic membrane systems, such as forward osmosis (FO), have gained popularity as “soft” concentration processes. FO has unique properties by combining high rejection rate and low fouling propensity and can be operated without significant pressure or temperature gradient, and therefore can be considered as a potential candidate for a broad range of concentration applications where current technologies still suffer from critical limitations. This review extensively compiles and critically assesses recent considerations of FO as a concentration process for applications, including food and beverages, organics value added compounds, water reuse and nutrients recovery, treatment of waste streams and brine management. Specific requirements for the concentration process regarding the evaluation of concentration factor, modules and design and process operation, draw selection and fouling aspects are also described. Encouraging potential is demonstrated to concentrate streams more than 20-fold with high rejection rate of most compounds and preservation of added value products. For applications dealing with highly concentrated or complex streams, FO still features lower propensity to fouling compared to other membranes technologies along with good versatility and robustness. However, further assessments on lab and pilot scales are expected to better define the achievable concentration factor, rejection and effective concentration of valuable compounds and to clearly demonstrate process limitations (such as fouling or clogging) when reaching high concentration rate. Another important consideration is the draw solution selection and its recovery that should be in line with application needs (i.e., food compatible draw for food and beverage applications, high osmotic pressure for brine management, etc.) and be economically competitive.

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“…Notably, the total energy consumption of the FO + RO hybrid system was 15% less than that of a typical seawater desalination RO process. To treat high salinity hazardous waste landfill leachate, a vapor pressure driving FO-MD process were investigated [100]. The FO rejection rates of TOC, TN and NH 4 + -N were 92.04%, 94.07%, and 97.99%.…”

Section: Fo and Fo-based Hybrid Systemmentioning

confidence: 99%

Research on Forward Osmosis Membrane Technology Still Needs Improvement in Water Recovery and Wastewater Treatment

Shi

2019

Water

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Forward osmosis (FO) has become an evolving membrane separation technology to recover water due to its strong retention capacity, sustainable membrane fouling, etc. Although a good deal of research has been extensively investigated in the past decades, major challenges still remain as follows: (1) the novel FO membrane material properties, which significantly influence the fouling of the FO membranes, the intolerance reverse solute flux (RSF), the high concentration polarization (CP), and the low permeate flux; (2) novel draw solution preparation and utilization; (3) salinity build-up in the FO system; (4) the successful implementation of the FO process. This work critically reviews the last five years’ literature in development of the novel FO membrane material, structure in modification, and preparation, including comparison and analysis on the traditional and novel draw solutes coupled with their effects on FO performance; application in wastewater treatment, especially hybrid system and integrated FO system; fouling mechanism; and cleaning strategy as discussed in the literature. The current barriers of the research results in each hotspot and the areas that can be improved are also analyzed in detail. The research hotspots in the research and development of the novel membrane materials in various countries and regions have been compared in recent years, and the work of variation in pop research hotspots in the past 10 years has been analyzed and the ideas that fill the blank gaps also have been proposed.

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Combination and performance of forward osmosis and membrane distillation (FO-MD) for treatment of high salinity landfill leachate

Cited by 89 publications

References 35 publications

Degradation of recalcitrant organics in landfill concentrated leachate by a microwave-activated peroxydisulfate process

Degradation of recalcitrant organics in landfill concentrated leachate by a microwave-activated peroxydisulfate process

Forward Osmosis as Concentration Process: Review of Opportunities and Challenges

Research on Forward Osmosis Membrane Technology Still Needs Improvement in Water Recovery and Wastewater Treatment

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