[1]雷春生,王桂玉,姚　倩,等.化学沉淀法预处理高质量浓度的氨氮废水[J].常州大学学报(自然科学版),2010,(03):46-48.
　LEI Chun -sheng,WANG Gui -y u,Yao Qian,et al.Study of the Pretreatment of Highly Concentrated Ammonia - Nitrogenwas Tewater by Chemical Precipitation[J].Journal of Changzhou University(Natural Science Edition),2010,(03):46-48.
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化学沉淀法预处理高质量浓度的氨氮废水()
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常州大学学报(自然科学版)[ISSN:2095-0411/CN:32-1822/N]

卷:
期数:
2010年03期
页码:
46-48
栏目:
出版日期:
2010-09-25

文章信息/Info

Title:
Study of the Pretreatment of Highly Concentrated Ammonia - Nitrogenwas Tewater by Chemical Precipitation
作者:
雷春生1 ;  王桂玉2 ;  姚　倩1 ;  唐　璐1 ;  王　侃1
1.常州大学环境与安全工程学院, 江苏 常州 213164 ;2.常州市武进友邦净水材料有限公司, 江苏 常州 213163
Author(s):
LEI Chun -sheng1 ;  WANG Gui -y u2 ;  Yao Qian1 ;  Tang Lu1 ;  Wang Kan1
1 .School of Envi ronmental and Safety Engineering , Chang zhou U niversity , Chang zhou 213164 , China ;2 .Changzho u Water Purification Materials Inc .Ltd ., Chang zhou 213163 , China
关键词:
制药废水; 化学沉淀; 磷酸铵镁; 氨氮
Keywords:
pharmaceutical wastew ater ; chemical precipitation ; magnesium ammonium phosphate ; ammonia
分类号:
X 703
文献标志码:
A
摘要:
采用化学沉淀剂MgCl2 · 6H 2O 和NaH 2PO4 · 2H2 O 与制药废水中NH + 4 反应, 生成磷酸铵镁沉淀, 探讨了不同操作条 件对氨氮去除率的影响。在pH 为9.0 -9.5 的条件下, 投加的药剂n (Mg2 +) ∶n (NH + 4 ) ∶n (PO3- 4 ) 为1.2 ∶1.0 ∶1.3 时, 废水氨氮的去除率达99 %以上, 氨氮的质量浓度经二次化学沉淀处理后由28 869 mg · L -1 降至200 mg · L -1 。
Abstract:
By reaction of chemical precipi tatio n agents MgCl2 · 6H2O w ith NaH2PO4 ·2H2O and NH + 4 in the pharmaceutical w aste w ater , magnesium ammonium phosphate precipitation w as generated .At the same time , this paper discussed the rate of ammo nia ni t ro gen removal under the dif fe rent ope ra tion conditions .When dosing pharmaceut ical n (Mg2 +) ∶n (N H+ 4 ) ∶n (PO3 - 4 )w as 1.2 ∶1.0 ∶1.3 , eff luent ammonia ni trog en remov al rate reached more than 99 % and the mass concentrat ion o f ammonia through the seco ndary treatment by chemical precipi tation decreased f rom 28 869 mg · L-1 to 200 mg · L-1 unde r the condi tions of the pH 9.0 -9.5 .

参考文献/References:

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备注/Memo

备注/Memo:
基金项目:常州市科技创新项目(CN2009047) 作者简介:雷春生(1978 -), 男, 湖南衡阳人, 讲师, 现从事环境科学和环境工程方面的教学与研究。
更新日期/Last Update: 2010-09-25