摘要：

设计了一种新型结构的絮凝反应器,利用停留时间分布对其性能进行评价,测得它的分散数为0.10,接近于活塞流反应器,絮凝效率高.采用该絮凝器进行钢铁企业实际废水处理试验,结果表明:按静态条件下的药剂配比进行动态试验,废水的硬度、碱度和SS可以分别由进水时的143、118、213mg/L控制在100、100、30mg/L以内,药剂成本可控制在0.10元/m³,达到企业的回用水质和成本要求.

关键词: 絮凝, 反应器设计, 分散数, 动态试验

Abstract:

A new type of flocculation reactor has been designed，whose performances have been evaluated by its residence time distribution.The new reactor’s D/UL is 0.10，showing that it is close to plug flow reactor.Its flocculation efficiency is high. The new reactor is used for treating wastewater in iron and steel works.Dynamic tests are conducted according to the flocculant dosage ratio under static conditions. The hardness of the wastewater decreases from 143 mg/L to below 100 mg/L，its alkalinity decreases from 118 mg/L to below 100 mg/L，and its SS decreases from 213 mg/L to below 30 mg/L.The cost of coagulant can be controlled to 0.10 yuan/m³，which accords with the recycle standards of water quality and cost requirements of iron and steel works

Key words: flocculation, design of reactor, dispersing number, dynamic test

中图分类号: 

• X703.1