摘要
文章针对废纸造纸生产中废水产生量大,SS、COD浓度较高的问题,将废纸造纸废水处理工程实践中的污水作为对象,研究一套废纸造纸废水回收利用的污水处理方法,减少再生纸造纸工业对环境的污染。实验结果和工程实践证明:利用混凝沉淀—活性污泥相结合工艺处理废纸造纸废水,达到一部分经物理处理后回收利用,一部分经生化处理后达标排放。采用该工艺处理效果好,SS去除率达99.7%、COD去除率达98.4%,且运行稳定,成本和一次性投资均较低,其排放废水水质满足《造纸工业水污染物排放标准》(GB3544-2001)中的排放要求。
Treatment method was studied for the recovery of papermaking wastewater with high concentration of SS and COD,aiming at reducing the impact of regenerated papermaking industry on the environment.Results indicated that the combined process of coagulation precipitation and activated sludge was used for treatment of regenerated papermaking wastewater,with part of which recovered after physical treatment and the other part discharging to the criteria after biochemical treatment.Removal rate of SS and COD was up...
出处
《环境科学与技术》
CAS
CSCD
北大核心
2010年第7期168-173,共6页
Environmental Science & Technology
关键词
废纸造纸废水
混凝沉淀
好氧处理
回收利用
regenerated papermaking wastewater
coagulation precipitation
aerobic treatment
recycling
