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Synthesis and Application of Cationic Flocculant PDA ——Study on Sludge Dewatering in Processing Municipal Sewage(PDF)

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2001年02期
Page:
205-209
Research Field:
Publishing date:

Info

Title:
Synthesis and Application of Cationic Flocculant PDA ——Study on Sludge Dewatering in Processing Municipal Sewage
Author(s):
ZhangYuejun GuXuefang ChenWeizhong
School of Chemical Enginering,NUST,Nanjing 210094
Keywords:
f locculants cation sludge dew atering structure-performance relat ions
PACS:
TQ314
DOI:
-
Abstract:
The flocculat ing properities of cat ionic copolymer Poly-DMDAAC-AM ( PDA) and several commercial cat ionic polyacry lamide w ith different cat ionic structures were tested for sludge dew atering in processing municipal sewage. The result s show that each cat ionic f locculant has opt imal dosage range, generally from 50 mg / L to 80 mg / L. COD removal ef ficiency of the tested w ater can reach 78 % or more, the transmittancy can reach 90 % or more. Compared w ith cationic flocculants w ith different cat ionic st ructures, the copolymer PDA prepared is of hig h value in pract ice.

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Last Update: 2013-03-25