温度调节对污泥中有机质和氮磷溶出的影响研究

摘要

Heat treatment of sludge can destroy the sludge flocs and accelerate the dissolution of solid materials. Sludge was put in 50℃ hot water in order that people can observe the dissolution of organics and ammonia and phosphate in sludge in the heating process. The results show that the heating is benefit for the dissolution of organics,and the soluble pro-tein(SPN),soluble polysaccharide(SPS)and soluble chemical oxygen demand(SCOD),ammonia nitrogen(NH4+-N), phosphate(PO43--P)are increased in the 50℃ water bath pot after 2 hours. The release of these materials is 36.03mg/g VS, 9.41mg/g VS,60.59mg/g VS,5.99mg/g TS and 7.28mg/g TS respectively.%污泥热处理可以破坏污泥絮体,加快固体物质的溶解.对污泥进行50,℃水浴加热以了解加热过程中污泥中有机质和氮磷的溶出情况.结果表明,加热有利于污泥中有机质的溶出,加热2,h后,溶解性蛋白质(SPN)、溶解性碳水化合物(SPS)、溶解性化学需氧量(SCOD)、氨氮(NH4+-N)和磷酸盐(PO43--P)的溶出量均有提高,分别为36.03、9.41、60.59,mg/g VS,5.99、7.28,mg/g TS.