生物活性炭技术在污水回用深度处理中的应用

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以城市污水处理厂二级出水为对象.开展了生物活性炭技术回用深度处理的现场试验,重点研究了运行方式及主要运行参数对深度处理效果的影响。研究表明:生物活性炭上向流运行明显优于下向流.在空床停留时间为10min,气水比2.7.反冲洗周期为4~6天时,出水氨氮、浊度及有机物等主要指标均可达到《城市污水再生利用城市杂用水水质》(GB/T18920—2002)要求,在城市污水处理厂出水回用于城市杂用水的深度处理中有较好的应用前景。
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