Insects hold the key to effluent treatment
Tanneries in
When placed in the waste product, the insect grows quickly and is said to consume dust and particles in the water. Tanneries can then easily separate the salts using solar evaporation and reuse the water in the plantation.
Previously it was difficult to remove salts as total dissolved solids (TDS) levels were too high. No suitable technology had been discovered to bring TDS to a permissible level, the tanneries say, so effluents and sludge were simply dumped.
The secretary of the Erode Tannery Owners Association, Ibrahim Sahib, says
