Reduction of ETP Biological Sludge Calorific Value

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Dear All,

I am working in a API pharma unit as a Effluent Treatment Plant In-charge. In our ETP we are sending the Aeration Tank (BIO) sludge for incineration. since the incineration coat is higher than Land filling, we were planning to send the bio sludge to land filling instead of Incineration. as per the local solid waste disposal agency, calorific value of the sludge should be lesser than 2500 cal/g, but we are getting 4000cal/g in our sludge.

How we can reduce the calorific value of the sludge? is there any further treatment available to reduce the calorific value?

Thanks & Regards,

Sunil Kumar K    

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