CAJ | 학술논문

以污泥滤饼含水率和比阻（SRF）作为评价指标，改变石灰与PAM的添加顺序及投加比例，研究石灰、PAM及石灰与PAM联合调理对污泥脱水性能的影响．实验结果表明，石灰与PAM有效降低了SRF和滤饼含水率，联合调理能改善污泥脱水性能，且PAM与石灰的投加顺序对改善污泥的脱水性能影响不大．单独投加石灰的最佳投药量为0．25g／100mL，污泥比阻由原泥的6．43×1013m／kg下降到1．85×1013m／kg，石灰投加量为2．0g／100mL时，离心和抽滤后泥饼含水率由原泥的97．5％分别降低到80．4％和57．8％；先投加100mg／L的PAM后投加2g／100mL的石灰，污泥比阻由原泥的6．43×1013m／kg下降到0．65×1013m／kg，离心和抽滤后泥饼含水率由原泥的97．5％分别降低到81．8％和57．7％．
이오니려병함수솔화비조（SRF）작위평개지표，개변석회여PAM적첨가순서급투가비례，연구석회、PAM급석회여PAM연합조리대오니탈수성능적영향．실험결과표명，석회여PAM유효강저료SRF화려병함수솔，연합조리능개선오니탈수성능，차PAM여석회적투가순서대개선오니적탈수성능영향불대．단독투가석회적최가투약량위0．25g／100mL，오니비조유원니적6．43×1013m／kg하강도1．85×1013m／kg，석회투가량위2．0g／100mL시，리심화추려후니병함수솔유원니적97．5％분별강저도80．4％화57．8％；선투가100mg／L적PAM후투가2g／100mL적석회，오니비조유원니적6．43×1013m／kg하강도0．65×1013m／kg，리심화추려후니병함수솔유원니적97．5％분별강저도81．8％화57．7％．
The paper studied the effect of lime ,flocculants PAM and lime combined with PAM on the dewaterability of sewage under the conditions of changing the sequence and proportion of lime and PAM ,using some evalution indexes ,i .e .,water content of dewatered sludge and specific resistance of filtration (SRF) .The results show that adding flocculants PAM or lime can reduce SRF and water content of dewatered sludge ,lime combined with PAM can im‐prove sludge dewatering properties ,but the sequence of lime and PAM has little effect on improving sludge dewatering performance .When conditioning sludge by lime individually ,the best addition amount was 0 .25 g/100 mL ,the SRF is reduced from 6 .43 × 1013 m/kg to 1 .85 × 1013 m/kg .when the addition amount of lime was 2 g/100 mL ,the water content in dewa‐tered sludge by the centrifuge and the suction filter are reduced from 97 .5% to 80 .4% , 57 .8% ,respectively .When conditioning sludge by lime combined with flocculants PAM and adding 100 mg/L PAM before the addition of 2 g/100 mL lime ,the SRF is reduced from 6 .43 × 1013 m/kg to 0 .65 × 1013 m/kg ,and the water content in sludge dewatered by the centrifugeand the suction filter are reduced from 97 .5% to 81 .8% ,57 .7% ,respectively .