Energy-efficient seawater desalination and wastewater treatment using osmotically driven membrane processes

Attarde, Dinesh; Jain, Manish; Singh, Preet Kamal; Gupta, Sharad

doi:10.1016/j.desal.2017.03.010

Cited by 49 publications

(26 citation statements)

References 57 publications

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“…Source: own elaboration from the questionnaires. Notes: 1 Petition was on 1986; 2 Latest statutes in 2015; 3 Although the first irrigation campaign with desalinated water was in 1979 with the arrival of the TST; 4 This surface increases until 3515 ha (taking into account the surface currently occupied by the industrial park); 5 This surface is reduced to 32,000 in a dry period; 6 Part of this surface (12,620 ha) corresponds to traditional irrigation (unregulated); 7 Some farms up to 200-300 ha; 8 Some farms up to 400 ha; 9 Some farms up to 40-50 ha; 10 Professional farmer: 20 ha, with 7-8 large fruit and vegetable companies (25-30 ha each one); 11 Some farms up to 50-100 ha; 12 One horticultural company uses 800 ha and a fruit company, about 300 ha; 13 Some horticultural companies up to 150 ha; 14 Vegetables include lettuce, broccoli, artichoke, cauliflower, tomatoes, celery, potato, onion, and pepper; while fruits include citrus, melon, watermelon, grape, and mango.…”

Section: Irrigation Communitiesmentioning

confidence: 99%

“…However, some issues can become a barrier to promoting desalination for crop irrigation, including energy cost, electrical conductivity, or farmers' attitudes when accepting or refusing desalinated water use. Water desalination is an energy intensive approach for freshwater production [13], and the rapid increase in installed capacity has resulted in increasing energy consumption. Although technological advances have been made aimed at reducing energy consumption by incorporating new and more efficient energy recoveries or membranes, this issue is still a problem to be taken into consideration [14].…”

Section: Introductionmentioning

confidence: 99%

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How to Close the Gap of Desalinated Seawater for Agricultural Irrigation? Confronting Attitudes between Managers and Farmers in Alicante and Murcia (Spain)

Ricart

Villar-Navascués

Gil-Guirado

et al. 2020

Water

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Although desalination water cost and quality standards have been widely studied, less attention has been paid to understanding how desalination plant managers and irrigation communities interact to address water scarcity. This paper aims to approach these questions from experience in Alicante and Murcia (Spain). Two specific questionnaires have been applied to (1) three desalination plants managed by the Spanish public company ACUAMED, and (2) 11 irrigation communities who use desalinated seawater. Discursive analysis has been applied in order to deepen understanding on the driving factors, benefits, and barriers of desalination use and management. Results highlighted how (1) irrigation communities consider desalination as a complementary water source to be combined with conventional water resources, (2) both ACUAMED and irrigation communities highlighted two main advantages of desalination: the security/guarantee of supply and water quality parameters, and (3) managers and irrigators disagree on the desalination model of seawater provision and management, since irrigators consider that the Central Union of the Tajo-Segura transfer irrigators (SCRATS) should have a leading role. In addition, the main driving factors and barriers useful for policy makers when closing the gap of desalination have been identified: water price and energy consumption; lack of water storage capacity and regulation; environmental impacts.

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Section: Irrigation Communitiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

How to Close the Gap of Desalinated Seawater for Agricultural Irrigation? Confronting Attitudes between Managers and Farmers in Alicante and Murcia (Spain)

Ricart

Villar-Navascués

Gil-Guirado

et al. 2020

Water

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“…The natural water resources contain solids in two forms, suspended and dissolved [16,38,39]. Suspended solid-state matters exist in insoluble particulates, debris, seawater microorganisms, silt, or colloids.…”

Section: Modeling Of Pressure-driven Membranesmentioning

confidence: 99%

Recent Drifts in pH-Sensitive Reverse Osmosis

Ibrahim¹,

El-Gammal²

2018

Wastewater and Water Quality

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Preparation of some smart PAm-ZTS pH-responsive membranes, via reactions between ZTS and PAm under different conditions, was conducted for testing pressure-driven reverse osmosis membranes (PDROMs) in active rejection of Ce 4+ ,Pr 3+ ,Sm 3+ ,Gd 3+ ,Dy 3+ , and Ho 3+ ionic lanthanide species in their 3 + and 4 + states. Recent theoretical models to designate the membrane operations were mathematically itemized, after selective characterization of the PDROMs. The pH scale response of the membrane was confirmed using static adsorption and hydraulic pervasion result estimations. The flux across the PAm-ZTS membrane decreased with the lowering pH value, with drastic decreases between pH 4 and 7, and was both reversible and durable with pH shifts between~3 and~8. At lower pH 3, the individual pores were in a closed-state due to the prolonged structure of the amide chains on the porous surfaces. In contrast, at pH 8, the higher pH value, the membrane pores were in an open-state format, because of the collapsed structures of the amide chains. This grants a clear possible approach for manufacturing some pHresponsive composite membranes and inspires further design for their stimuli-responsive actions by incorporating molecularly designed macromolecules, synthesized by controlled polymerization.

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“…Polymeric membranes have been broadly applied in wastewater treatment, protein purification, and seawater desalination . Unfortunately, membranes face serious fouling problems in the separation process, and this leads to a progressive flux decline and membrane selective change .…”

Section: Introductionmentioning

confidence: 99%

Outstanding antifouling performance of poly(vinylidene fluoride) membranes: Novel amphiphilic brushlike copolymer blends and one‐step surface zwitterionization

Wang

Liu

et al. 2019

J of Applied Polymer Sci

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In this study, we endowed a poly(vinylidene fluoride) (PVDF) membrane with outstanding antifouling ability by blending the hierarchical amphiphilic brushlike copolymer [poly(hydroxyethyl methacrylate)-b-polydimethylsiloxane-b-poly(hydroxyethyl methacrylate)]-gpoly(N,N-dimethylamino-2-ethyl methacrylate) with different initial monomer/initiator feed ratios and performing a one-step surface zwitterionization of spontaneously segregated poly(N,N-dimethyl aminoethyl methacrylate) segments. Interestingly, nanoscale granular micelles were formed on the surface during zwitterionization because of the migration and self-assembly of the amphiphilic copolymer; this contributed to the membrane hydrophilicity and antifouling ability. During the filtration of the model foulant bovine serum albumin (BSA) aqueous solution, the BSA rejection ratio and flux recovery ratio increased remarkably to 94.8 and 100.0%, respectively. Moreover, the modified membranes also possessed stable and durable antifouling properties after three cycles of BSA filtration. Thus, this study provided a versatile method for constructing a PVDF ultrafiltration membrane that could achieve high permeability and good antifouling properties in efficient wastewater treatment.

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Energy-efficient seawater desalination and wastewater treatment using osmotically driven membrane processes

Cited by 49 publications

References 57 publications

How to Close the Gap of Desalinated Seawater for Agricultural Irrigation? Confronting Attitudes between Managers and Farmers in Alicante and Murcia (Spain)

How to Close the Gap of Desalinated Seawater for Agricultural Irrigation? Confronting Attitudes between Managers and Farmers in Alicante and Murcia (Spain)

Recent Drifts in pH-Sensitive Reverse Osmosis

Outstanding antifouling performance of poly(vinylidene fluoride) membranes: Novel amphiphilic brushlike copolymer blends and one‐step surface zwitterionization

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