CAJ | 학술논문

研究了城市污水厂污泥好氧堆肥过程中的重金属钝化规律.由蘑菇渣、磷矿粉、鸡粪、高温菌种与城市污泥组成的试验堆体在微生物作用下快速干化.经过30天的好氧堆肥,试验堆体稳定态铬的比例达到了67~80%,稳定态铜的比例达到了31~41%,稳定态镍的比例达到了49~57%,稳定态锌的比例达到了46~55%,稳定态锰的比例达到了56~64%,污泥重金属的生物活性和毒性减少.生成的复合有机肥施用于园林绿化.图5,表2,参5.
연구료성시오수엄오니호양퇴비과정중적중금속둔화규률.유마고사、린광분、계분、고온균충여성시오니조성적시험퇴체재미생물작용하쾌속간화.경과30천적호양퇴비,시험퇴체은정태락적비례체도료67~80%,은정태동적비례체도료31~41%,은정태얼적비례체도료49~57%,은정태자적비례체도료46~55%,은정태맹적비례체도료56~64%,오니중금속적생물활성화독성감소.생성적복합유궤비시용우완림녹화.도5,표2,삼5.
This paper studied the inactivation of heavy metal in the process of sewage sludge aerobic composting. Experiment stacks,which were made of mushroom residue,powdered rock phosphate,chicken manure,bacteria in high temperature and sewage sludge,dried fast under the effect of microbe. Propor-tions of steady-state chromium,copper,nickel,zinc,manganese respectively were 67 ~80%,31 ~41%, 49~57%,46~55%,56~64% after aerobic composting for 30 days. The biological activity and toxicity of sewage sludge decreased. The compound organic fertilizer was used in landscape. 5figs. ,2tabs. ,5refs.