ECOENERGY GESELLSCHAFT FÜR ENERGIE- UND UMWELTTECHNIK MBH
发明人:
SCHU, Reinhard,SCHU, Kirsten
申请号：
WO2018DE100462
公开号：
WO2018210379(A1)
申请日:
2018.05.15
申请国别(地区):
世界知识产权组织国际局
年份:
2018
代理人:
摘要：
The invention relates to a method for producing fertilizer and biogas form waste and wastewater. The method comprises the removal of organic and inorganic harmful substances in order to obtain marketable fertilizer. In order to avoid overfertilization by phosphorus and nitrogen, the following fertilizer values are separated: nitrogen as ammonium sulfate, phosphorus in the natural organic matrix for maximum plant availability and purified mineral-containing water for regional agricultural use. By means of wet mechanical processing of the waste with acidic and hot washing, the harmful-substance-containing clay minerals and other harmful-substance-laden very fine particles are concentrated in a fine fraction. The dewatered fine fraction is purified of heavy metals by means of acid. The coarse organic fraction from the wet mechanical processing is treated further by means of low-temperature fermentation with subsequent thermal cell lysis, in order to transfer dissolved heavy metals and heavy metals bound to fine
