Chemical coagulation and biological techniques for wastewater treatment

IF 1 Q4 CHEMISTRY, MULTIDISCIPLINARY Ovidius University Annals of Chemistry Pub Date : 2023-01-01 DOI:10.2478/auoc-2023-0003

S. O. Akinnawo, P. O. Ayadi, M. Oluwalope

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引用次数: 3

Abstract

Abstract This paper reports the effectiveness of chemical coagulation and biological techniques for the treatment of wastewater from industrial and agricultural operations. Agricultural husbandry has been reported to produce wastewater that has high content of chemical oxygen demand (COD), biological oxygen demand (BOD), turbidity as well as organic and inorganic pollutants. A comparison on the use of organic and inorganic based coagulants as well as the optimum conditions required for high percentage removal efficiency of pollutants from wastewater has been reviewed. At optimum experimental condition, ferric chloride coagulants were reported to yield 98, 95, 93 and 50 % removal of color, turbidity, iron and manganese. Moreover, chemical coagulation, electrocoagulation and biological methods have been reported to display a close range in their capacities for removing pollutants from wastewater. However, biological method was observed to be highly effective in the removal of pollutants from wastewater but requires more time and produces lesser volume of sludge, when compared to chemical method in the treatment of wastewater.

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废水的化学混凝和生物处理技术

摘要本文报道了化学混凝和生物技术处理工农业生产废水的效果。据报道，农业养殖产生的废水具有高含量的化学需氧量(COD)、生物需氧量(BOD)、浊度以及有机和无机污染物。对有机混凝剂和无机混凝剂的使用进行了比较，并对废水中污染物的高去除率所需的最佳条件进行了综述。在最佳实验条件下，氯化铁混凝剂的色度、浊度、铁和锰去除率分别为98%、95%、93%和50%。此外，据报道，化学混凝、电混凝和生物方法在去除废水中污染物的能力方面表现得很接近。然而，与化学处理废水的方法相比，生物方法在去除废水中的污染物方面非常有效，但需要更多的时间和产生较少的污泥量。

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来源期刊

Ovidius University Annals of Chemistry CHEMISTRY, MULTIDISCIPLINARY-

自引率

11.10%

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审稿时长

5 weeks