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Sustainable biotreatment of textile dye effluent water by using earthworms through vermifiltration
Journal of King Saud University-Science ( IF 3.8 ) Pub Date : 2021-09-24 , DOI: 10.1016/j.jksus.2021.101615
Nadanam Kannadasan 1 , Balamuralikrishnan Balasubramanian 2 , Thanapal Palanisamy 3 , Sureshkumar Shanmugam 3 , Karthika Pushparaj 4 , Naif Abdullah Al-Dhabi 5 , Mariadhas Valan Arasu 5 , Mahesh Narayanan 6
Affiliation  

Objective

A research was conducted to explore the reuse possibilities of the textile dye effluent propagated from the textile dye industry. The current study reports vermiculture based effluent treatment method through the chief intention of interconversion of contaminated effluent water into ecologically harmless water.

Methods

Hence a new and typical technology, vermifiltration of effluent using wastewater eating earthworms has been evolved.

Results

Outcome recommended that vermifilter revealed maximal chemical oxygen demand (126 mg L−1), Biological oxygen demand (56 mg L−1), Total suspended solids (181 mg L−1) and Total dissolved solids (298 mg L−1) decreased by 85–89%, 76–80%, 73–77% and 71–76% by the result of vermifiltration. Bioavailability of some heavy metallic compounds such as Ni, Cd, Cu, Zn, Pb, and Cr brought down considerably during vermifiltration. Vermifilter and control metal accumulations ranged from 0.2 ppm to 2.34 ppm and from 0.10 ppm to 2.98 ppm respectively. The SEM illustration reveal that the morphology of the vermicast of control and vermifiltration which is differing significantly. When the concentration of textile dye sludge increases it also increases the destruction of tissues constantly. Histological of the gut domain exposed moderate harm in 50% dilution.

Conclusions

Therefore, these studies concluded that vermifiltration can be used as an eco-friendly technique which can be considered the same as a paradigm for textile industries effluents remedial development.



中文翻译:

通过蚯蚓过滤对纺织染料废水进行可持续生物处理

客观的

进行了一项研究,以探索从纺织染料工业传播的纺织染料废水的再利用可能性。目前的研究报告了基于蚯蚓养殖的污水处理方法,其主要目的是将受污染的污水转化为生态无害的水。

方法

因此,开发了一种新的典型技术,即使用蚯蚓的废水对污水进行蚯蚓过滤。

结果

结果建议蚯蚓过滤器显示最大化学需氧量(126 mg L -1)、生物需氧量(56 mg L -1)、总悬浮固体(181 mg L -1)和总溶解固体(298 mg L -1 )) 减少了 85-89%、76-80%、73-77% 和 71-76%。在蚯蚓过滤过程中,一些重金属化合物(如镍、镉、铜、锌、铅和铬)的生物利用度显着降低。Vermifilter 和对照金属的积累范围分别为 0.2 ppm 至 2.34 ppm 和 0.10 ppm 至 2.98 ppm。SEM图显示对照和蚯蚓过滤的蚯蚓的形态存在显着差异。当纺织染料污泥浓度增加时,它也不断增加对组织的破坏。肠道结构域的组织学在 50% 稀释时暴露中度危害。

结论

因此,这些研究得出的结论是,蚯蚓过滤可以用作一种环保技术,可以被视为与纺织工业废水修复开发的范例相同。

更新日期:2021-10-06
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