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生活污水处理设备
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发布时间2014-4-1 15:09:31 浏览:290
污水处理技术说明
1)拦污设施
本工程原水中固体杂质含量较高,为确保提升泵等设备正常工作和保证后续处理构筑物正常运行,拟在处理主体工艺的前段设置拦污设施。
2)生物接触氧化法
生物接触氧化法属于生物膜法,具有以下优点和特点:
生物接触氧化法生物池内设置填料,由于填料的比表面积大,池内充氧条件好,生物接触氧化池内单位容积的生物体量都高于活性污泥法曝气池及生物滤池,因此生物接触氧化池具有较高的容积负荷;
由于相当一部分微生物固着生长在填料表面,生物接触氧化法可不设污泥回流系统,也不存在污泥膨胀问题,运行管理方便;
由于生物接触氧化池内生物固体量多,水流属于完全混合型,因此生物接触氧化池对水质水量的骤变有较强的适应能力;
由于生物接触氧化池内生物固体量多,当有机物容积负荷较高时,其F/M(F为有机基质量,M为微生物量)比可以保持在一定水平,因此污泥产量可相当于或低于活性污泥法;
采用A/O/O生物处理工艺是近几年来国内外环保工作者用以解决污水脱氮的主要方法,该方法具有如下特点:
利用系统中培养的硝化菌及脱氮菌,同时达到去除污水中含碳有机物及氨氮的目的,与经普通活性污泥法处理后再增加脱氮三级处理系统相比,基建投资省、运行费用低、电耗低、占地面积少。
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