聚合氯化铝和聚丙烯酰胺复合絮凝剂处理造纸废水
收稿日期: 2005-03-01
网络出版日期: 2010-10-01
Treatment of paper making wastewater with polyaluminum chloride - polyacrylamide composite flocculant
Received date: 2005-03-01
Online published: 2010-10-01
张秀丽, 周风山, 孙文秀 . 聚合氯化铝和聚丙烯酰胺复合絮凝剂处理造纸废水[J]. 工业水处理, 2005 , 25(8) : 36 -37,38 . DOI: 11894/1005-829x.2005.25(8).36
The samples of wastewater froma paper mill treated with composite flocculant of PAC and PAMhave been studied. The whole experiment process contains the following three steps:separating out xylogen on acidic condition;flocculating on alkaline condition;oxidizing flocculated water. The results showmost suspended substances in the wastewater could be eliminated and the CODCr of the wastewater decreases obviously when the pH is adjusted to 3-4;the CODCrof the wastewater could be lowered to about 400 mg/Lby adding 300 mg/LPAC and 15 mg/L PAMto 1 L wastewater under stirring (300 r/min); after oxidizing flocculated wastewater with Ca(ClO)2, the CODCrof the wastewater is lowered to 150 mg/L (discharge standard of water pollutants for paper industry).
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