Open AccessThe waste-to-energy technology of the energy sector
Author(s) -
Л. А. Николаева,
R. Ya. Iskhakova
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1089/1/012041
Subject(s) - waste management , sorption , incineration , environmental science , carbonate , activated sludge , chemistry , adsorption , sewage treatment , engineering , organic chemistry
Nowadays a problem of reducing anthropogenic impact on the environment is important. In the present article a perspective method of waste-to-energy technology of the energy sector is reviewed. This article focuses on the carbonate sludge (large-tonnage industrial waste) produced by power stations that is used as a sorption material, and adsorption properties of carbonate sludge, its influence on activated sludge is considered. Sludge is a microporous sorbent which is confirmed by the sorption curves for oil products and ammonia nitrogen. The carbonate sludge increases the activated sludge volume index by improving its sedimentation properties and the efficiency of centrifugation during activated sludge dewatering due to the rupture of hydrate shells of activated sludge. Granules that can be used as a fuel are obtained at the following mass ratios: excess activated sludge - 70%, carbonate sludge - 8%, binder - 22% by weight (starch and technical lignosulfonate). The production technology of fuel granules for incineration has been developed based on the research results.