The degradation of tannery sludge with and without coffee powder waste as an adsorbent was investigated.

Sludge, thus is yet another solid waste of the tanning industry requiring appropriate utilization or safe disposal. These studies show the comparative study of tannery sludge degradation with and without coffee powder waste which gives the degradation process faster than the normal composting process to enhance the composting method. Sludge with catalyst and without catalyst with the help of week trails identified suitable proportion of waste material for a faster degradation in composting. It was observed that degradation of 15 kg waste like tannery sludge, sewage sludge with catalyst degrades faster while compare to without catalyst, mixture of waste as Tannery sludge and sewage sludge. Composting process helps to reduce the quantity of sludge and reuse it in a proper way without affect the environment. [ABSTRACT FROM AUTHOR]