试验研究

污泥浓缩、脱水滤液除磷试验研究

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  • 中石化仪征化纤股份有限公司给排水厂, 江苏 仪征 211900
丁大勇(1971- ),1995年毕业于南京河海大学,工程师,车间副主任.电话:0514-3236160,E-mail:chinaddy@yahoo.com. cn.

收稿日期: 2002-12-25

  网络出版日期: 2019-06-03

Study on removing phosphorus in clarified liquid from sludge thickening and sludge dewatering

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  • Yizheng Chemical Fibre Co.,Ltd, Yizheng 211900, China

Received date: 2002-12-25

  Online published: 2019-06-03

摘要

污泥由浓缩到脱水过程中会因为在缺氧环境中停留时间过长而释放大量的磷,从而直接影响出水总磷的排放.仪化污水处理场生产、生活污水的总磷质量浓度基本在10mg/L以下,而场内污泥浓缩、脱水过程中排放的回流水总磷的最大质量浓度达到40mg/L,这部分磷对装置出水总磷的合格排放将产生重要的影响.利用物理化学法,在回流水中投加有机或无机混凝剂,可去除大量的磷.实验证明,当回水中TP的质量浓度为20mg/L左右时,工业硫酸铝的投加量达40mg/L,即能获得80%以上的除磷效果,同时还能去除40%左右的COD.

本文引用格式

丁大勇, 陈玉叶 . 污泥浓缩、脱水滤液除磷试验研究[J]. 工业水处理, 0 : 44 -46 . DOI: 10.11894/1005-829x.2004.24(3).44

Abstract

If the sludge is settled for a long time in anaerobic environment from thickening to dewatering, it will rele-ase much phosphorus and affect directly the effluent of total phosphorus. In the influent industry wastewater and sew-age of Yizheng Chemical Fibre Co., Ltd, mass concentration of the total phosphorus is normally less than 10 mg/L,but the total phosphorus is up to 40 mg/L in clarified liquid from sludge thickening and sludge dewatering, which has seriously affected the wastewater′s removal of total phosphorus and keep the treated wastewater′s discharge from meeting the requirements of discharge standard in China. By using physio-chemical methods, adding organic or inorganic coagulant to clarified liquid, plenty of phosphorus can be removed. It has been verified by the experiments that the removal of total phosphorus is more than 80%, COD is 40%, when the mass concentration of the total phosphorus is about 20 mg/L in clarified liquid and the dosage of industry aluminum sulphate is 40 mg/L.

参考文献

[1] 熊建英,等.铁盐处理上海合流一期污水试验研究[J].中国给水排水,2000,16(6):17-19
[2] 吴赳赳,等.给水工程[M].北京:中国建筑工业出版社,1995.119-120

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