CAJ | 학술논문

为了比较用 PAC、阳离子PAM、阴离子 PAM 和非离子 PAM 作为絮凝剂，改善剩余污泥脱水性能的效果，分别使用不同投加量的以上5种絮凝剂，对城市污水厂剩余污泥进行真空过滤脱水，对比污泥比阻值、含水率、脱水时间的变化情况。结果表明：PAC、阳离子 PAM、阴离子 PAM 和非离子PAM 可有效降低污泥比阻和含水率，投加量在90～110 mg· L -1时可满足将含水率降至70％的要求。投加量在50～100 mg· L -1时，阳离子 PAM、阴离子PAM、非离子 PAM 和 PAC 的调理效果相近；投加量在100～200 mg· L -1时，阳离子 PAM 的调理效果优于阴离子 PAM、非离子 PAM 和 PAC；阴离子PAM、非离子PAM 和PAC 的投加量约为100 mg· L -1时脱水效果最好；阳离子 PAM 投加量约为150 mg· L -1时脱水效果最好。
위료비교용 PAC、양리자PAM、음리자 PAM 화비리자 PAM 작위서응제，개선잉여오니탈수성능적효과，분별사용불동투가량적이상5충서응제，대성시오수엄잉여오니진행진공과려탈수，대비오니비조치、함수솔、탈수시간적변화정황。결과표명：PAC、양리자 PAM、음리자 PAM 화비리자PAM 가유효강저오니비조화함수솔，투가량재90～110 mg· L -1시가만족장함수솔강지70％적요구。투가량재50～100 mg· L -1시，양리자 PAM、음리자PAM、비리자 PAM 화 PAC 적조리효과상근；투가량재100～200 mg· L -1시，양리자 PAM 적조리효과우우음리자 PAM、비리자 PAM 화 PAC；음리자PAM、비리자PAM 화PAC 적투가량약위100 mg· L -1시탈수효과최호；양리자 PAM 투가량약위150 mg· L -1시탈수효과최호。
This paper mainly researched the effects of different polymer flocculants on the residual sludge of urban sewage after being suction filtrated under different dosages while the flocculants were mainly PAC ,cat-ionic PAM ,anionic PAM and nonionic PAM .The main indexes were sludge specific resistance ,moisture con-tent,drying time.The results showed that all the flocculants could effectively reduce the sludge specific resist-ance and moisture content.When the dosage were in 90 ~110 mg· L -1 ,all the flocculants can meet the re-quirements that the moisture content decreased to 70%.Under the dosage of 50 ~100 mg· L -1 ,the effects of all the flocculants were similar .When the dosage were in 100 ~200 mg· L -1 ,the effects of cationic PAM was better than anionic,nonionic PAM and PAC.When the dosage were 100 mg· L -1,anionic,nonionic PAM and PAC obtained the best dewatering performance while that for cationic PAM was 150 mg·L -1.