Role of Thermodynamics and Membrane Separations in Water‐Energy Nexus

Mukherjee, Anupam; Lanjewar, Shubham; Kumar, Ridhish; Chakraborty, Arijit; Abdelrasoul, Amira; Roy, Anirban

doi:10.1002/9781119536260.ch4

Cited by 6 publications

(2 citation statements)

References 44 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The challenge and acceptability of the ZLD/MLD process and integration with existing manufacturing lie in the energy penalty. , Traditionally and technologically, ZLD/MLD plants employ thermal energy-based evaporative methods to recover water. , Thermodynamically, heat being an inferior form of energy transfer (than work), this same separation requires huge energetic costs . This automatically will have an effect on the costs and production and thereby the pricing of textiles.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Paradigm Shift toward Developing a Zero Liquid Discharge Strategy for Dye-Contaminated Water Streams: A Green and Sustainable Approach Using Hydrodynamic Cavitation and Vacuum Membrane Distillation

Mukherjee

Satish

Mullick

et al. 2021

ACS Sustainable Chem. Eng.

Self Cite

View full text Add to dashboard Cite

The present study is a "first-of-its-kind" work on an integrated process consisting of a hydrodynamic cavitation (HC)assisted advanced oxidation process and vacuum membrane distillation (VMD) for the degradation of Methylene Blue (MB) from aqueous solution as well as recovery of the water posttreatment. Experiments using HC were carried out in a systematic approach by optimizing the geometry of the cavitating device followed by studying the effect of operating parameters such as pH and inlet pressure on the degradation rate of MB. Under optimized conditions of pH 2 and 5 bar of inlet pressure, degradation of MB was found to be 23.48% in 120 min by the HC process alone with a rate constant of 2.4 × 10 −3 min −1 . Coupling HC with H 2 O 2 and O 3 further enhanced the process, and the degradation obtained was 93.07 and 46.60%, respectively in 60 min. Moreover, a kinetic model was proposed for degradation of MB using HC coupled with oxidizing agents. Furthermore, mineralization studies were also conducted by evaluating the total organic carbon (TOC) content, and the possible intermediates involved during the process were evaluated using ex situ mass spectroscopic studies. The water from the exit of the cavitating setup was further processed through VMD to achieve zero liquid discharge. The optimized flow rate, permeate pressure, and temperature for the VMD process were 10 L/h, 20 mmHg, and 50 °C, respectively, and a water recovery of around 8% was achieved. Technoeconomic feasibility studies with real-life textile effluent revealed that the combined approach of HC-based advanced oxidation processes and VMD resulted in a chemical oxygen demand and TOC removal of 35.41% and 39.57%, respectively, simultaneously recovering water of ∼90% at the economics of $18.61/m 3 .

show abstract

Section: Introductionmentioning

confidence: 99%

“…12,13 Thermodynamically, heat being an inferior form of energy transfer (than work), this same separation requires huge energetic costs. 14 This automatically will have an effect on the costs and production and thereby the pricing of textiles. This may explain the reluctance of such industries to adopt ZLD/MLD.…”

Section: Introductionmentioning

confidence: 99%