Vermicompost as a Natural Adsorbent to Reduce...

Vermicompost as a Natural Adsorbent to Reduce Content of Toxic Elements in Industrial Effluent- A Review

Author Name : Khushi Agarwal, Amod Kumar, Subhash KC, Mukul Brawed, Gattu Sai Vinay Gupta, Anita Jaswal

ABSTRACT       

Industrial effluent is wastewater generated after its use in an industrial process. Wastewater treatment acts as a water conservation tool, as in this process suspended solids and other pollutants are removed, which leads to the prevention of groundwater and water pollution, which further helps in minimizing the possible harmful effects of soil pollution on agricultural production and food safety. In recent decades, treating wastewater by different methods has gained significant attention. The role of vermicompost in the removal of pollutants from industrial effluent has been investigated. Vermicompost, which is known to enhance soil fertility physically, chemically, and biologically, can also be used to treat wastewater generated by industrial processes. The industrial wastewater was treated by using vermicompost as an adsorbent and then filtered. In the current review, we summarize the role of vermicompost amendment in reducing the content of toxic metals, namely Cd(II), Cu(II), Pb(II), As(III), and Zn(II), and also its role in lessening the number of various dyes released, specifically methylene blue, Indigo blue, Congo red, Eriochrome black T, and crystal violet. The data revealed that after treatment with vermicompost, the treated effluent had lower values for all the parameters than the untreated effluent.

Keywords: Sustainability, Soil pollution, toxic elements, good health and well-being and contaminants.