化学沉淀法脱除焦化废水中氨氮的研究

燃料与化工 ›› 2011, Vol. 42 ›› Issue (3): 47-50.

• 煤气净化与化学产品加工 • 上一篇下一篇

化学沉淀法脱除焦化废水中氨氮的研究

梁建华1 徐蕾2 袁媛1 张康华1 史世庄1

1武汉科技大学化学工程与技术学院，武汉 430081；2.中冶京诚工程技术有限公司能源环保所，北京 100716

出版日期:2011-05-28

Study on NH3-N removal in coking effluent by chemical precipitation process

Liang Jianhua1 Xu Lei2 Yuan Yuan1 Zhang Kanghua1 Shi Shizhuang1

1. Wuhan University of Science & Technology, Wuhan 430081, China;2. Capital Engineering & Research Incorporation Ltd., Beijing 100716, China

Online:2011-05-28

摘要/Abstract

摘要：

采用化学沉淀法处理高浓度氨氮废水，研究了药剂配比、pH值等因素对氨氮去除率的影响。在适当的条件下，可得到纯净的MAP晶体，氨氮的去除率可达98％。在温度为100℃、加热3h将MAP分解后，分解物重复用于脱除废水中的氨氮，氨氮的去除率可达93％，既可大幅度降低药品成本，又可回收废水中的氨。

Abstract:

The chemical precipitation process was used to treat high concentration NH3-N in wastewater, the influence of the factors such as chemicals blendinig ratio and pH value on NH3-N was studied. Under suitable conditions, the pure and clean MAP crystal can be obtained, the removal rate for NH3-N can be reached to 98%. At the temperature of 100℃, heated for 3 hours and MAP was decomposed, the composed substance can be used for the removal of NH3-N in wastewater in repeat, the removal rate of NH3-N can be reached to 93%, the cost of chemicals can be substantially reduced and NH3 in waste water can be recovered.

中图分类号:

X789

梁建华1 徐蕾2 袁媛1 张康华1 史世庄1. 化学沉淀法脱除焦化废水中氨氮的研究[J]. 燃料与化工, 2011, 42(3): 47-50.

Liang Jianhua1 Xu Lei2 Yuan Yuan1 Zhang Kanghua1 Shi Shizhuang1. Study on NH3-N removal in coking effluent by chemical precipitation process[J]. FUEL & CHEMICAL PROCESSES, 2011, 42(3): 47-50.