聚合铝在发电厂水处理中的应用与研究Application and Research on Polyaluminum Chloride in Water Treatment of Power Plant
张小天
ZHANG Xiaotian
摘要(Abstract):
聚合铝在发电厂水处理中的应用广泛。为寻找聚合铝的最佳使用条件,通过改变原水的p H值、温度及聚合铝的用量等来确定聚合铝使用的最佳条件,通过测量水样的剩余浊度和UV254确定混凝效果。试验表明:聚合铝在p H值为6左右时混凝效果最好且此时聚合铝的最佳投药量为9 mg·L-1左右,聚合铝混凝的最佳水温在25℃左右;聚合铝混凝剂与结晶氯化铝相比混凝效果更高,而且投药量更少。
Polyaluminum chloride is widely used for water treatment in power plant. To find out the best service condition, p H value, temperature and dosage of raw water are changed. By measuring residual turbidity of water samples and UV254, coagulation effect is determined. The test shows that when p H value is 6 coagulation effect becomes optimal, he most appropriate dosage of polyaluminum chloride is 9 mg/L-1and the most suitable water temperature for polyaluminum chloride coagulation is about 25 Celsius degrees. Compared with crystalline aluminum chlorate, polyaluminum chloride coagulant is more effective and less dose-consuming.
关键词(KeyWords):
聚合铝;絮凝特性;混凝机理;影响因素
polyaluminum chloride;flocculation characteristic;coagulation mechanism;influencing factor
基金项目(Foundation):
作者(Author):
张小天
ZHANG Xiaotian
DOI: 10.19585/j.zjdl.2015.11.018
参考文献(References):
- [1]严煦世,范瑾初.给水工程[M].北京:中国建筑工业出版杜,2008.
- [2]张卫飞.聚合氯化铝中Al(Ⅲ)的形态分布影响因素及混凝性能研究[D].浙江:浙江大学环境与资源学院,2003.
- [3]汤鸿宵.羟基聚合氯化铝的絮凝形态学[J].环境科学学报,1998(18):1-10.
- [4]O’MELIA C R.Coagulation in Wastewater Treatment[C]//In the Scientific Basis of Flocculation.NATO ASI Series.Ives K J Ed Sijthoff and Noordhoff.Aalphenaan den Rijin.Netherlands,1978.
- [5]董申伟.无机高分子聚合铝混凝剂的研制及其在水处理中的应用研究[D].山东:暨南大学,2009.
- [6]唐婉莹.聚合氯化铝絮凝机理探讨[J].南京理工大学学报,1997,21(4):325-328.
- [7]李凤亭,何艳,潘宏杰,等.聚合氯化铝混凝性能的影响因素研究[J].工业水处理,2008,28(10):40-43.
- [8]王万林.我国复合型无机高分子絮凝剂的研究及应用进展[J].工业水处理,2008,28(4):1-6.
- 聚合铝
- 絮凝特性
- 混凝机理
- 影响因素
polyaluminum chloride - flocculation characteristic
- coagulation mechanism
- influencing factor