摘要
为解决臭氧氧化处理煤化工废水现阶段所存在的臭氧利用率不高,并进一步处理煤化工废水中的难降解有机物。论文采用臭氧催化氧化法对煤化工调节池废水进行深度处理,研究了温度、pH、臭氧投加量、反应时间、催化剂投加量等因素对COD和色度去除效率的影响。通过单因素实验分析,得到其最佳工况条件为臭氧投加量为4 g/h,废水pH=9,水温为35℃,催化剂投加量为30 g,在最佳工况条件下,COD和色度去除率分别能达到69.46%和99.75%。以上研究结果可为高效的臭氧催化氧化体系在煤化工废水处理领域的应用提供参考。
In order to solve the problem that the utilization rate of ozone in the coal chemical wastewater treatment by ozone oxidation is not high at this stage, and to further treat the refractory organic matter in the coal chemical wastewater. The paper adopts the ozone catalytic oxidation method to conduct advanced treatment of coal chemical industry regulation pond wastewater, and studies the influence of temperature, pH, ozone dosage,reaction time, catalyst dosage and other factors on COD and color removal efficiency. Through single-factor experiment analysis, it is found that the optimal working conditions are 4 g/h of ozone dosage, pH=9 of wastewater, water temperature of 35 ℃, and catalyst dosage of 30 g. Under the best working conditions, COD and The chroma removal rate can reach 69.46% and 99.75% respectively. The above research results can provide reference for the application of efficient ozone catalytic oxidation system in the field of coal chemical wastewater treatment.
作者
徐昊
孙文全
孙永军
周俊
XU Hao;SUN Wenquan;SUN Yongjun;ZHOU Jun(College of Urban Construction,Nanjing Tech University,Nanjing 211816,China;Lishui Vocational Technical College,Lishui 323000,China)
出处
《水处理技术》
CAS
CSCD
北大核心
2022年第1期122-125,共4页
Technology of Water Treatment
基金
国家重点研发计划资助(2017YFB0602500)
江苏省第十五批“六大人才高峰”高层次人才资助项目(JNHB-038)。
关键词
臭氧
催化氧化
高级氧化
预处理
煤化工废水
Ozone
catalytic oxidation
advanced oxidation
pretreatment
coal chemical wastewater
