Since the main part of influent water is industrial waste, wefinally recommend Modified A2/O process after comparing three schemes, includingModified A2/O, Orbal oxidation ditch and CASS.

• 针对该污水厂进水中工业废水所占比例较大的特点,经过对改良A2/O、Orbal氧化沟、CASS三方案的比选,最终推荐采用改良A2/O污水处理工艺方案。