铝盐-淀粉复合絮凝剂污水处理效果研究

应用生态学报 ›› 2004, Vol. ›› Issue (8): 1443-1446.

铝盐-淀粉复合絮凝剂污水处理效果研究

张凯松^1,2, 周启星¹, 吴伟民³

1. 中国科学院沈阳应用生态研究所陆地生态过程重点实验室, 沈阳 110016;
2. 中国科学院研究生院, 北京 100039;
3. 浙江省龙游县环保局, 龙游 324403

收稿日期:2003-09-01 修回日期:2004-02-28 出版日期:2004-08-15
通讯作者: 周启星
基金资助:
国家杰出青年科学基金项目(20225722);中国科学院知识创新重要方向资助项目(KZCX2SW416)

Wastewater treatment efficiency of combined aluminum-starch flocculant

ZHANG Kaisong^1,2, ZHOU Qixing¹, WU Weimin ³

1. Key Laboratory Terrestrial Ecological Process, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China;
2. Graduate School of Chinese Academy of Sciences, Beijing 100039, China;
3. Longyou Bureau of Environmental Protection, Longyou 324403, China

Received:2003-09-01 Revised:2004-02-28 Online:2004-08-15

摘要/Abstract

摘要： 以模拟废水、生活污水、市政污水和制浆造纸废水为实验对象,检验了一种新合成铝盐-淀粉复合絮凝剂中试产品(CAS)的污水处理效果.结果表明,与聚合氯化铝(PAC)相比较,CAS处理不同浓度(100、400和2 000 mg·L^-1)高岭土模拟废水时最佳投加量分别为3.0、2.0和2.0 mg·L^-1,为PAC最佳投加量的60%、50%和50%;同时CAS对该废水、生活污水、市政污水的浊度去除效果略优于PAC,但COD去除率明显高于相同剂量的PAC;处理高浓度制浆造纸污水时,CAS投加量相当于PAC用量的70%,COD处理率提高10%,污泥量减少40%.

关键词: 复合型絮凝剂, 絮凝性能, 污水处理, COD, 浊度, 环境安全

Abstract: This paper examined the efficiency of a combined flocculants synthesized by aluminum and starch (noted as CAS) in treating kaolin suspension,domestic wastewater,municipal effluent and pulp-making wastewater.Jar test results showed that the flocculent performance of CAS was prior to polyaluminum-chloride (PAC) in treating different concentration kaolin suspension samples (100,400 and 2 000 mg稬^-1).The optimal dose of CAS to each sample was 3.0,2.0 and 2.0 mg稬^-1,being 60%,50% and 50% of PAC,respectively.CAS also showed a priority to PAC in removing the COD and turbidity of domestic and municipal effluents.When treating pulp-making wastewater,the optimal dose of CAS was 70% of PAC.The removal rate of COD was enhanced 10%,the sludge was reduced 40%,and the sediment time was greatly shortened.It was also identified that the optimal concentration required to affect flocculation depended on the concentration and the character of the wastewater within the range examined.CAS was more effective in treating high turbidity wastewater.

Key words: Combined flocculants, Flocculent performance, Wastewater treatment, COD, Turbidity, Environmental safety

中图分类号:

X703.5

张凯松, 周启星, 吴伟民. 铝盐-淀粉复合絮凝剂污水处理效果研究[J]. 应用生态学报, 2004, (8): 1443-1446.

ZHANG Kaisong, ZHOU Qixing, WU Weimin . Wastewater treatment efficiency of combined aluminum-starch flocculant[J]. Chinese Journal of Applied Ecology, 2004, (8): 1443-1446.

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