污水厂中A^2/O工艺在提标升级中的改进措施

Improvement Measures for Upgrading A^2/O Process in Sewage Treatment Plant

水资源短缺问题,在大城市尤其突出,城市污水处理厂经过相应处理可以作为回用水,成为城市第二水源,这就要求水质处理程度要逐渐提高。A^2/O工艺在原有城市污水市场上占有一定份额,所以在提标改造中任务较重,通过改造工艺,延长工艺链条,改进处理工艺参数,可使污水工艺达到国家一级排放标准。

the shortage of water resources is especially prominent in big cities.The municipal wastewater treatment plant can be used as water reuse and become the second water source in the city.This requires that the treatment degree of water quality should be gradually improved.The A^2/O technology occupies a certain share in the original urban sewage market,so it is heavy in the upgrading of the standard.Through the transformation process,the extension of the process chain and the improvement of the processing parameters,the sewage process can reach the national first level emission standard.