Agropotentiality of lime sludge waste from the paper industry.

The article presents a study on the use of lime sludge waste from the paper industry. It adopts the situation at the Nagaon Paper Mill, a public sector pulp and paper mill which is a unit of the Hindustan Paper Corporation Ltd. in Assam, India wherein it generates 448 tonnes of lime sludge per day as solid waste. It notes that Assam's agricultural soil is acidic and that liming is important to maintain the potential hydrogen of the soil through lime sludge waste instead of marketed lime.