CAJ | 학술논문

研究了无机和有机絮凝剂对剩余污泥水解和脱水性能的影响。分别投加浓度为20g/L的CaO和CPAM（阳离子型聚丙烯酰胺）调节剩余污泥，溶出的有机质规律如下：溶解性COD（SCOD）的溶出量表现为CPAM>CaO>空白；溶解性蛋白质（SPN）的溶出量表现为 CPAM>CaO>空白；溶解性碳水化合物（SPS）的溶出量表现为CaO>CPAM>空白。污泥的脱水性能指标--比阻（SRF）和滤饼含固率的变化分别为：SRF表现为CPAM<CaO<空白，投加 CaO 时 SRF 在第1天出现最小值（0.91×1013m/kg），投加 CPAM 时 SRF 在第7天出现最小值（0.71×1013m/kg），两者都处于中难度脱水范围内；滤饼含固率在后4天后表现为CPAM>CaO>空白。从SPN、SPS和SCOD的溶出量、比阻和滤饼含固率的变化说明：加入CaO和CPAM都能改善剩余污泥的水解和污泥脱水性能。
연구료무궤화유궤서응제대잉여오니수해화탈수성능적영향。분별투가농도위20g/L적CaO화CPAM（양리자형취병희선알）조절잉여오니，용출적유궤질규률여하：용해성COD（SCOD）적용출량표현위CPAM>CaO>공백；용해성단백질（SPN）적용출량표현위 CPAM>CaO>공백；용해성탄수화합물（SPS）적용출량표현위CaO>CPAM>공백。오니적탈수성능지표--비조（SRF）화려병함고솔적변화분별위：SRF표현위CPAM<CaO<공백，투가 CaO 시 SRF 재제1천출현최소치（0.91×1013m/kg），투가 CPAM 시 SRF 재제7천출현최소치（0.71×1013m/kg），량자도처우중난도탈수범위내；려병함고솔재후4천후표현위CPAM>CaO>공백。종SPN、SPS화SCOD적용출량、비조화려병함고솔적변화설명：가입CaO화CPAM도능개선잉여오니적수해화오니탈수성능。
This paper studied the effects on hydrolysis and dewatering performance of excess sludge by inorganic and organic flocculants. Adding 20g/L CaO and CPAM (cationic polyacrylamide)to adjust the excess sludge,the dissolution of organic matter were described as below:the dissolubility of solution chemical oxygen demand(SCOD)was CPAM>CaO>blank. The dissolubility of soluble protein(SPN)was CPAM>CaO>blank. The dissolubility of soluble polysaccharide(SPS)was CaO>CPAM>blank. Changes in the indicators of dewatering performance,specific resistance to filtration (SRF) and the filter cake containing solid rate were described as the following:the basic change of SRF was CPAM<CaO<blank, and the added CaO made SRF reach the minimum value (0.91×1013m/kg)on the 4th day,and the added CPAM made SRF reach the minimum value (0.71×1013m/kg)on the 7th day. Both results were considered as difficult dewatering. The change of filter cake containing solid rate was CPAM>CaO>blank after the 4th day. From the dissolution of SCOD、SPN,SPS,the change of SRF and filter cake containing solid rate,it was concluded that adding the same concentration of CaO and CPAM were more beneficial for hydrolyzing and dewatering.