A review on treatment of rice mill wastewater with emphasis on biological technologies

IF 4.1 2区 环境科学与生态学 Q2 BIOTECHNOLOGY & APPLIED MICROBIOLOGY
Mallikarjuna Challa, Rajesh Roshan Dash, Manaswini Behera
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Abstract

Due to its higher biochemical oxygen demand (BOD) and chemical oxygen demand (COD), the rice mill industry is considered a major polluting sector. The issue is becoming more serious due to the organic portions of the rice mill effluent, such as starch and other biodegradable constituents. The main objective of this review is to discuss the most commonly used methodologies (physico-chemical, phytoremediation, and biological) for treating rice mill effluent and highlight their effectiveness, with a greater emphasis on biological techniques. The study also included discussions on rice milling operations and the current status of rice mill effluent generation. The physico-chemical techniques effectively reduce BOD, COD, total suspended solids (TSS), and total dissolved solids (TDS) from the effluents. Still, it has limitations, such as the utilization of high-cost reagents and the requirement for external energy. Researchers have recognized biological techniques as the most economical choice for treating industrial effluents containing organic constituents. Phytoremediation ensures better aesthetics and a healthier environment while assisting industries to minimize toxic compounds and nutrients. The review also looked at the methodology, advantages, and limitations of the treatment technologies used in rice mill wastewater treatment. Furthermore, we update all of these treatment techniques with relevant data from the literature. At the end of the study, we include aspects related to the conclusions and future scope of the topic.

Abstract Image

以生物技术为重点的碾米厂废水处理综述
由于生化需氧量(BOD)和化学需氧量(COD)较高,碾米行业被认为是一个主要的污染行业。由于碾米废水中含有有机成分,如淀粉和其他可生物降解的成分,这一问题正变得越来越严重。本综述的主要目的是讨论处理碾米厂废水最常用的方法(物理化学法、植物修复法和生物法),并强调这些方法的有效性,其中更侧重于生物技术。研究还包括对碾米作业和碾米污水产生现状的讨论。物理化学技术可有效降低污水中的生化需氧量、化学需氧量、总悬浮固体和总溶解固体。但它也有局限性,如使用高成本试剂和需要外部能源。研究人员认为,生物技术是处理含有有机成分的工业废水最经济的选择。植物修复可确保更美观、更健康的环境,同时帮助工业将有毒化合物和营养物质降至最低。本综述还探讨了用于碾米厂废水处理的处理技术的方法、优势和局限性。此外,我们还根据文献中的相关数据更新了所有这些处理技术。在研究的最后,我们纳入了与本课题的结论和未来范围相关的内容。
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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来源期刊
CiteScore
9.60
自引率
10.40%
发文量
107
审稿时长
21 days
期刊介绍: International Biodeterioration and Biodegradation publishes original research papers and reviews on the biological causes of deterioration or degradation.
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