摘要
为处理某厂食糖精炼废水,设计并建造了附加循环IC反应器。针对厂方所给污染物设计指标是实际运行指标的4~5倍,导致反应器内不是颗粒污泥而是絮状污泥发挥作用,且在运行过程中,实际水质、水量与设计参数相差很大引起负荷不足,同时存在刷罐水的排放所造成的冲击负荷的情况,在有限条件下研究了运行效果。结果表明,在实际运行的絮状污泥条件下,反应器COD容积负荷可以达到5 kg/（m^3·d）以上;进水COD为2 500 mg/L左右,出水COD为400 mg/L左右,COD去除率达到83.3%左右;出水VFA含量的变化很好地指示了反应器的酸化程度。刷罐水的排放是重要的不可忽视的冲击负荷。实验历时50 d,启动及运行成功。
The circulation-added internal circulation reactor was designed and built in order to treat sugar refining wastewater from a certain factory. The pollutants design index provided by the factory was 4~5 times as many as the actual operation index, leading that the flocculent sludge played the main role in the reactor rather than the granular sludge. The operation effect was researched under limited conditions of the lack load caused by a big difference between actual water quality, water yield and design parameters and the impact load caused by the discharge of flushing jar water during operation. The result showed that the COD volume loading of reactor could reach more than 5 kg/（m^3.d） in the case of flocculent sludge stability, the inflow COD was about 2 500 mg/L, the effluent COD was about 400 mg/L, the removal rate of COD could reach about 83.3%, and the change of effluent VFA content could reflect the acidification extent of the reactor. The discharge of flushing jar water was an important impact load which cannot be ignored. The experiment was finished successfully in a 50 d operation.
出处
《水处理技术》
CAS
CSCD
北大核心
2015年第5期89-92,97,共5页
Technology of Water Treatment
