Abstract:
According to the high-hardness and low-alkalinity characteristics of the wastewater drained from ironand steel works, thetreatment bylime- sodiumcarbonate and composite coagulant chemical precipitation methodhas been studied. Laboratory test shows that after treatment the wastewater will completely meet the requirementof recycling and the cost is under control. Asuitable combination processandit scondition are investigated bystatic and dynamic experiments.
Key words:
reuseof wastewater,
chemical softening,
coagulation and precipitation,
dynamicbuilt-uptechnical route
摘要：
根据钢铁厂外排水质高硬度低碱度的特征，采用石灰-纯碱和复配型絮凝剂的化学沉淀方法对该种废水进行处理，达到了钢铁厂废水循环回用的水质和成本要求。通过静态和动态试验确定了合理的组合处理工艺及条件。
关键词:
废水回用,
化学软化,
混凝沉降,
动态组合工艺
CLC Number:
Liu Xingwang, Yang Yunquan. Research on the recycling technique of high-hardness and low-alkalinitywastewater drained from ironandsteel works[J]. INDUSTRIAL WATER TREATMENT, 2007, 27(2): 46-49.
刘兴旺, 杨运泉. 钢铁厂高硬低碱废水循环回用技术研究[J]. 工业水处理, 2007, 27(2): 46-49.