华电技术 ›› 2009, Vol. 31 ›› Issue (9): 69-71.

• 节能与环保 • 上一篇    下一篇

非碳酸盐碱度对石灰处理二级排放水的影响

刘进   

  1. 中国华电工程(集团)有限公司,北京 100048
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-09-25 发布日期:2009-09-25

The influence of noncarbonate alkalinity on secondary drainage treatment by using lime

LIU Jin   

  1. Water Treatment Branch of China Huadian Engineering Corporation Limited, Beijing 100048, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-09-25 Published:2009-09-25

摘要: 介绍了城市污水处理厂二级排放水碱度和硬度的特点,分析了非碳酸盐碱度对石灰软化处理系统石灰加药量、硫酸加药量、出水残留碱度和硬度的影响。指出在石灰软化处理城市污水处理厂二级排放水过程中,不能忽略非碳酸盐碱度的影响。

关键词: 城市污水处理厂, 二级排放水, 非碳酸盐碱度, 石灰软化处理

Abstract: The alkalinity and hardness characteristics of secondary drainage from municipal sewage plant were introduced. The influence of noncarbonate alkalinity on the lime required dosage, the sulfuric acid required dosage, and the rudimental alkalinity and the hardness of the output water in lime softening treatment system was analyzed. It is pointed out that in the lime softening treatment process of secondary drainage from municipal sewage plant, the influence of noncarbonate alkalinity can not be neglected.

Key words: municipal sewage plant, secondary drainage, non-carbonate alkalinity, lime softening treatment