摘要
本工作研究了矿化垃圾生物反应床处理焦化废水的可行性。研究表明,当废水浓度COD在(900～1450)mg/L时,经过单级矿化垃圾生物反应床,COD,NH3-N和挥发酚的去除率分别为82%,95%和98%,几种典型杂环化合物的去除率达64%。同样条件下经过两级回流(系统出水以1∶1的出水回流比回流至第一级反应床前后再进入两级反应床处理)矿化垃圾反应床处理,相应的COD,NH3-N、挥发酚和几种典型杂环化合物的去除率分别上升到92%,96%,99%,74%以上。整个过程中无需曝气,没有污泥排出。
In this study, the possibility of coke plant wastewater treatment using aged-refuse-based bioreactor was investigated. It is shown that 82%,95% and 98% of COD, NH_3-N and phenolic compounds can be removed by single bioreactor, when their influent concentrations are 900～1450, 80～130, 80～145 mg/L, respectively. For heterocyclic compounds, over 64% can be removed. When the wastewaters were treated using the two-stage bioreactor system, in which the effluent of the first stage bioreactor was passed through the second stage bioreactor, and then the effluent of the second stage bioreactor was recirculated to the first stage bioreactor with 100% of return ratio, the corresponding removal efficiency of COD, NH_3-N, phenolic compounds and heterocyclic compounds increased to 92%,96%, 99% and 74% respectively. No surplus sludge was observed and no aeration operation was required for this process.
出处
《环境技术》
2004年第1期25-28,共4页
Environmental Technology
基金
国家 863高新科研项目资助项目
