摘要
针对彩管行业含铬废水处理工艺存在的不足,分别从还原剂和混凝剂两方面进行改进。通过比较和分析,最终提出了采用FeSO4作为还原剂处理含铬废水,氧化还原反应pH调节范围扩大,运行安全系数提高;利用新型高效混凝剂配合泥回流工艺,化学药品用量大幅下降,出水COD和SS含量显著减少。
As it existed weakness in chromic wastewater treatment technology in color kinescope industry,solutions to improve them from aspects of reducing agent and coagulating reagent are proposed m this article. Through analysis and comparison,it is concluded that using FeSO4 as reducing agent could broaden pH adjusting range of oxidation-reduction reaction and improve safety of operation; using the new high-efficiency coagulating reagent and adopting sludge recirculation technology could significantly reduce chemical usage and content of COD and SS in treated wastewater .
出处
《环境污染治理技术与设备》
CSCD
北大核心
2005年第10期80-83,共4页
Techniques and Equipment for Environmental Pollution Control
关键词
含铬废水
还原剂
混凝剂
氧化还原反应
泥回流
chromic wastewater
reducing agent
coagulating reagent
oxidation-reduction reaction
sludge recirculation
