Harnessing the osmotic energy of cane molasses by forward osmosis: process studies and implications for a sugar mill

Honmane, Bharat; Bhansali, Rhea; Deshpande, Tejaswini; Dhand, Abhishek; Mogha, Saransh; Mukherjee, Joydeb; Ghosh, Debshankar; Sarode, Ghananil; Srivastava, Sangeeta; Dive, Amol; Deshmukh, Dattatreya; Ghosh, Pushpito K.

doi:10.1080/00207233.2020.1787036

Cited by 4 publications

(3 citation statements)

References 27 publications

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“…The former is related to osmotic pressure and temperature whereas the latter consists of oxygen and nutrient availability, pH variation, and microbial inhibitors. Osmotic pressure can be induced in a microbial media due to the presence of inorganic salts that can be on substrates such as molasses, a byproduct of sugar production, proteins derived from dairies, or glycerol formed as a byproduct from biodiesel. − During the biochemical process, salts may be added to control the pH which leads to an increase in osmotic pressure against the bacterial cell wall. It has been observed that bacteria that could synthesize relatively larger PHA granules could withstand larger osmotic pressures as the PHA can function as an intracellular scaffold that can prevent the disruption of the bacteria’s cell .…”

Section: Synthesis Of Bioplastics Using Bacteriamentioning

confidence: 99%

Bacteria for Bioplastics: Progress, Applications, and Challenges

de Souza,

Gupta

2024

ACS Omega

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Bioplastics are one of the answers that can point society toward a sustainable future. Under this premise, the synthesis of polymers with competitive properties using lowcost starting materials is a highly desired factor in the industry. Also, tackling environmental issues such as nonbiodegradable waste generation, high carbon footprint, and consumption of nonrenewable resources are some of the current concerns worldwide. The scientific community has been placing efforts into the biosynthesis of polymers using bacteria and other microbes. These microorganisms can be convenient reactors to consume food and agricultural wastes and convert them into biopolymers with inherently attractive properties such as biodegradability, biocompatibility, and appreciable mechanical and chemical properties. Such biopolymers can be applied to several fields such as packing, cosmetics, pharmaceutical, medical, biomedical, and agricultural. Thus, intending to elucidate the science of microbes to produce polymers, this review starts with a brief introduction to bioplastics by describing their importance and the methods for their production. The second section dives into the importance of bacteria regarding the biochemical routes for the synthesis of polymers along with their advantages and disadvantages. The third section covers some of the main parameters that influence biopolymers' production. Some of the main applications of biopolymers along with a comparison between the polymers obtained from microorganisms and the petrochemical-based ones are presented. Finally, some discussion about the future aspects and main challenges in this field is provided to elucidate the main issues that should be tackled for the wide application of microorganisms for the preparation of bioplastics.

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Section: Synthesis Of Bioplastics Using Bacteriamentioning

confidence: 99%

Bacteria for Bioplastics: Progress, Applications, and Challenges

de Souza,

Gupta

2024

ACS Omega

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“…Amongst these prevailing expensive and energy consuming membrane technologies, Forward Osmosis (FO) is looked upon as a potential alternative in recent years to replace the costly pressure driven membrane processes (Honmane et al, 2020;Mogha, 2020). FO is another membrane-based separation technique that is a thermodynamically spontaneous process, unlike its hydraulic pressure-driven counterparts.…”

Section: Forward Osmosismentioning

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

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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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