Suggested invention depicts method of obtaining liquid non-sulphuric organic fuel from waste products, formed after cleaning of industrial and residential drain water.
The method is performed as follows. Preliminary concentrated primary settlers sludge suspension, being waste products formed after cleaning of industrial and residential drain water, and excess activated sludge suspension, being waste product after biological cleaning of residential and industrial drain water, to be processed with coagulant, dehydrate to concentration 10-30 wt.-%, then hydrolyze, obtained hydrolyzate to be separated from undissolved part of sediment, then evaporated to concentration 65-80 wt.-% getting the desired product.
Suggested method allows to get high-mileage non-waste technology of obtaining liquid non-sulphuric organic fuel with high calorific power, its burning makes minimum dioxine content (1 pk for 1 cubic meter of gas at normal conditions), meeting the most harsh European standards (not more than 100 pk for 1 cubic meter of gas at normal conditions), as well as to completely utilize primary settlers sludge and excess activated sludge after biological cleaning of effluent.