Channelizing the osmotic energy of proximate sea bittern for concentration of seawater by forward osmosis under realistic conditions to conserve land requirement for solar sea salt production

Honmane, Bharat; Deshpande, Tejaswini; Dhand, Abhishek; Bhansali, Rhea; Ghosh, Pushpito K.

doi:10.1016/j.memsci.2018.09.022

Cited by 6 publications

(4 citation statements)

References 20 publications

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“…The aq. NaCl solution (24% w/w) having high osmotic pressure (π = 375 bar at 298K) (Honmane et al, 2018) which resembles the dairy brine stream is used as the draw solution. A nylon ltration sheet of 200 mesh ( lter cloth) lters the whey and removes any dirt or solid particles prior to the FO process.…”

Section: Materials and Instrumentationmentioning

confidence: 99%

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Forward Osmosis: An Approach to Reclaim Dairy Waste Stream Whey

Agrawal

Sarode

Mogha

et al. 2021

Preprint

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Recognizing the issues with conventional water resources and stricter wastewater effluent disposal standards, the treatment and recovery from wastewater are gaining impetus. The dairy industry consumes a substantial amount of water and generates a massive quantity of wastewater annually. Whey, which is about 94% water, is a waste stream produced in the dairy industry during the manufacture of cheese, paneer, yogurt, etc. Although various wastewater treatment technologies are available in the market, membrane technologies are considered the most advanced and reliable ones, but they are expensive. In recent years, Forward Osmosis (FO) is looked upon as a potential alternative to these costly and energy intensive pressure driven membrane processes. FO works on the principle of natural osmotic pressure where energy is just required to lift the solutions. The present lab-scale study investigates the partial reclamation of water from whey using FO technology. The Continuous Single Pass (CSP) and Recirculation mode (RC) study is conducted using high osmotic pressure (π = 375 bar at 298K) saturated aqueous(aq.) NaCl as the draw solution. The aq. NaCl solution is a potential brine stream in the dairy industry and finds applications in the manufacture of paneer, butter, cheese and ice cream eliminating the need for draw regeneration. The back diffusion study of the Hollow Fibre Forward Osmosis (HFFO) membrane revealed about 0.82% back diffusion of solute. The maximum water recovery of ~ 56% is achieved in CSP mode while 57.6% is achieved for RC mode with Feed/Draw ratio of 4.5:1. For F/D of 10:1, the maximum permeate flux of ~ 8.7 kg m− 2 h− 1 is observed for the CSP mode of operation for 10 minutes of study. Thus, FO is an efficient membrane technique that eliminates the need for draw regeneration and can be applied in the dairy industry.

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Section: Materials and Instrumentationmentioning

confidence: 99%

“…The permeate ux and water recovery are calculated using below equations referred from (Honmane et al, 2018(Honmane et al, ,2020:…”

Section: Fo Studymentioning

confidence: 99%

Forward Osmosis: An Approach to Reclaim Dairy Waste Stream Whey

Agrawal

Sarode

Mogha

et al. 2021

Preprint

Self Cite

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“…Forward osmosis (FO) is an osmotic pressuredriven process which has attracted increasing attention. It is a potential substitute for traditional pressure-driven processes (e.g., RO, NF) for water recycling (Hey et al, 2017;Honmane et al, 2018;Soler-Cabezas et al, 2018). Within FO operation, the osmotic pressure difference across a semipermeable membrane drives water permeating through the FO membrane, while other solutes are rejected (Munshi et al, 2018;Yoshioka et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Laboratory and pilot evaluation of aquaporin-based forward osmosis membranes for rejection of micropollutants

Braekevelt²,

Carfort

et al. 2021

Water Research

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“…FO is a spontaneous process and nowadays it is a major focus research areas in the membrane separation processes. FO system can be used in recirculating and continuous single-pass mode [24]. RO cannot be used above 50000 ppm concentration, above this concentration evaporation and FO can be used.…”

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confidence: 99%

An Overview on the Use of Electrolyte Solution as a Strong Osmotic Agent in Forward Osmosis

Khapekar¹,

Kadu²,

Savla³

et al. 2022

IJAR

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Forward osmosis (FO) has gained attention of people in recent decades due to its magnificent properties andless energy requirements. This paper aims to discuss various characteristics of draw solutes which are differentiated due to their performance and show exceptional results as osmotic agents in FO. Different types of membranes are being selected for different applications according to needs and requirements. Among them, CTA (Cellulose Triacetate Membrane) and TFC (Thin-film composite membrane) membranesare widely used and show higher fluxas compared to others. Responsive draw solute causes remarkable change in osmotic pressure of the diluted solution when exposed to external factors such as pH and temperature. Responsive and Non-responsive draw solutes have advantages and disadvantages on their usage in FO. Comparative study has been done which shows that as compared to the different techniques for purification, FO stands tallest in terms of economic analysis and alsoresults shown by FO are phenomenal. This review targets recent progress, challenges and opportunities concerning the development of appropriate and efficient osmotic agents with low-cost energy recovery to achieve largescale application of FO and its future development.

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Channelizing the osmotic energy of proximate sea bittern for concentration of seawater by forward osmosis under realistic conditions to conserve land requirement for solar sea salt production

Cited by 6 publications

References 20 publications

Forward Osmosis: An Approach to Reclaim Dairy Waste Stream Whey

Forward Osmosis: An Approach to Reclaim Dairy Waste Stream Whey

Laboratory and pilot evaluation of aquaporin-based forward osmosis membranes for rejection of micropollutants

An Overview on the Use of Electrolyte Solution as a Strong Osmotic Agent in Forward Osmosis

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