基于AOP高级氧化法的污水深度处理工艺设计优化研究

Study on the optimization of wastewater advanced treatment process design based on advanced oxidation process

在研究总结了基于不同AOP产生自由基的基本机理,并选择垃圾渗滤液和经生物处理的城市污水作为模型废水,讨论了不同AOP对废水的处理,开发了一种先进的AOP污水深度处理工艺,将通过臭氧氧化减少剩余污水和通过结晶工艺回收磷结合到传统的厌氧/好氧(A/O)除磷工艺中。通过污水臭氧氧化试验,研究了A/O工艺下污水与合成污水混合培养的污水的增溶特性及微生物活性的变化。拟议的工艺配置有可能减少剩余污水产量,并以可用形式回收磷,臭氧氧化可达到30%的增溶度。在臭氧消耗量为30 mg/g时,实现了30%的增溶。

After summerizing the basic mechanism of free radicals produced by different AOPs,landfill leachate and biological treated municipal wastewater was selected as model wastewater,and the treatment of wastewater by different AOPs was discussed.At the same time,an advanced AOP sewage advanced treatment process has been developed,which combines the reduction of excess sludge through ozone oxidation and the recovery of phosphorus through crystallization process into the traditional anaerobic/aerobic(A/O) phosphorus removal process.Through sludge ozonation test,the solubilization characteristics and microbial activity of sludge mixed with synthetic sewage under A/O process were studied.The proposed process configuration may reduce the output of excess sludge and recover phosphorus in a usable form,with ozone oxidation up to 30% solubilization.When the ozone consumption was 30 mg/g,30% solubilization was achieved.