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【答案】应助回帖
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Mally89: 金币+1, 感谢应助！~欢迎常来！~吼吼！~\(^o^)/~ 2012-03-30 22:45:24
yuanlidi: 金币+50, 翻译EPI+1, ★有帮助 2012-03-31 11:26:39
yuanlidi: 金币+50 2012-04-15 10:26:32
Based on the present situation of analyzing the coating wastewater treatment technology at home and abroad
and development direction ,this paper mainly do the following several aspects: blends with a kind of organic/inorganic flocculant and deal with the paint wastewater using anionic polyacrylamide , synthesizing water-soluble melamine formaldehyde resin and optimizing the process and treat paint wastewater using modified cationic polypropylene amine agglomerate. Through experiment and exploration, draw the following research results:
1) 100 mL 6% of polyferric sulphate solution, blending with 3 g poly two methyl two allyl of dimethyldiallylammonium chloride solution is used for paint wastewater treatment, can effectively remove paint sticky. the best prepared ratio of Anionic polyacrylamide is 1:3, the treatment agent prepared according to the process conditions and the formula can remove 91.5% paint in the waste water .
(2) suitable reaction condition for the preparation of water-soluble melamine formaldehyde resin: raw material ratio of n (3 get together the atmosphere amine) : n (formaldehyde) = 1:2, hydroxymethylation reaction (pH = 8 to 9, 40 min), acidic polycondensation reaction (pH = 3, 3 h), 70 ℃ .
(3) NingJiJi is made by 0.12wt% modificated agent and the cationic PAM whose molecular weight is 12 million, ion degrees 50% . |
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