I am wondering if anyone knows of research evaluating the use of earthworms to bioaccumulate and remove anthropogenic chemical contaminants from biosolids destined for land application? I am looking specifically at triclocarban, triclosan, and methyl triclosan bioaccumulation through vermicomposting biosolids. I have come across studies using earthworms as bioindicators of the presence of contaminants in soils previously treated with biosolids but nothing that looks at how efficient worms are at removing the contaminants from biosolids.
There are lot of research articles on bio-accumulation of toxicants by earthworms. Heavy metal accumulation in earthworm has been reported independently by Dr Surinda Suthar, Dr Garg and Dr Rajeev Singh.
We did some work on earthworm on earthworm Chromium from contaminated soil at Bhushighata, 24 parganas(South), West Bengal, India. Chromium content in
the worth worm is many fold than the background. There is scope to improve contaminated soils using earthworm. We have published our findings long back. Many publications are also available. One of my students did Ph. D in this field.
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