Solar Thermal Technology Aided Membrane Distillation Process for Wastewater Treatment in Textile Industry—A Technoeconomic Feasibility Assessment

Comput. Chem. Eng. Pub Date : 2023-09-13 DOI:10.3390/eng4030135

Mukesh Kumar Gupta, Rajendra B. Mohite, Salunkhe Madhav Jagannath, Pankaj Kumar, Dipak Shankar Raskar, Malay Kumar Banerjee, Suraj Kumar Singh, Dragana Dogančić, Bojan Đurin

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Abstract

Because textile industries are intensely water-consuming and generate a huge quantity of wastewater, the present study examines the scope of using solar thermal technology to treat wastewater from textile industries. A hybrid technology, comprising a compound parabolic concentrator-based solar thermal system in conjunction with a Membrane Distillation (MD) system, is experimented with for wastewater treatment in textile industries. The MD system requires a water temperature of around 90 °C for efficient functioning. The advanced MD technology using waste heat combined with solar heat to meet the system’s thermal load is technologically evaluated for an experimental textile industry in India. Moreover, the present study critically analyses the techno economics of the proposed hybrid technology. A detailed financial analysis has revealed that, besides technological superiority, the recommended technology is also financially rewarding for wastewater treatment in the textile industry. To cope with the delayed payback period, financial incentives are recommended so that the system becomes a lucrative technological option.

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太阳能热技术辅助膜蒸馏法处理纺织工业废水的技术经济可行性评价

由于纺织工业用水量大，废水量大，本研究探讨了利用太阳能热技术处理纺织工业废水的范围。一种混合技术，包括基于复合抛物面聚光器的太阳能热系统与膜蒸馏(MD)系统相结合，用于纺织工业的废水处理试验。MD系统需要90°C左右的水温才能有效运行。先进的MD技术利用废热与太阳能热相结合来满足系统的热负荷，为印度的一个实验性纺织工业进行了技术评估。此外，本研究批判性地分析了所提出的混合技术的技术经济学。详细的财务分析表明，除了技术优势外，所推荐的技术对纺织行业的废水处理也具有经济效益。为了应对延迟的投资回收期，建议采取财政激励措施，使该系统成为有利可图的技术选择。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Comput. Chem. Eng.

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