生态与农村环境学报 ›› 2011, Vol. 27 ›› Issue (6): 78-82.doi:

• 污染控制与修复 • 上一篇    下一篇

MAP沉淀法与超声波技术相联合对畜禽类便的脱氮除磷效果

彭绪亚, 何芸, 何清明   

  1. 重庆大学
  • 收稿日期:2011-06-16 修回日期:2011-07-30 出版日期:2011-11-25 发布日期:2011-11-28
  • 作者简介:彭绪亚(1963-),男,重庆市人,教授,博士生导师,主要从事固体废物污染控制与资源化技术研究。E-mail:xypeng33@126.com
  • 基金资助:

    国家“十一五”科技部重大专项(2009ZX07104-002-04)

Effectiveness of MAP Method Coupled With Ultrasonic Technology in Removing Nitrogen and Phosphorus From Poultry Feces

PENG  Xu-Ya, HE  Yun, HE  Qing-Ming   

  1. Chongqing University
  • Received:2011-06-16 Revised:2011-07-30 Online:2011-11-25 Published:2011-11-28

摘要: 研究磷酸铵镁(MAP)沉淀法与超声波技术相联合处理高浓度畜禽废水的最佳反应条件。结果表明,MAP沉淀法在pH值9.5、n(Mg2+):n(NH4+):n(PO43-)=1.2:1:1、反应10 min时脱氮除磷效果最佳,氨氮去除率为95.10%,磷酸盐去除率为97.40%。MAP沉淀与超声波辐照联合处理最佳条件下,同时增加曝气(流量为200L·h-1),6 h时氨氮去除率可提高到98%。

关键词: 磷酸铵镁(MAP), 畜禽粪便, 脱氮除磷, 超声波

Abstract: To efficiently remove  nitrogen and phosphorus from highly concentrated  livestock and poultry wastewater,an MAP(magnesium-ammonium-phosphate)sedimentation method coupled with ultrasonic technology is used.Studies have been done to explore optimal conditions for use of the method through controlling and regulating pH,n(Mg2+):n(NH4+):n(PO43-)and duration of the reaction.Results show that the MAP sedimentation method may achieve its best effect within the first 10 min of reaction,removing 95.10% of ammonia nitrogen and 97.10% of ammonia nitrogen and 97.40% of phosphorates in wastewater,when pH is controlled at 9.5,and n(Mg2+):n(NH4+):n(PO43-)at 1.2:1:1.Moreover,when the method is coupled with 60 W ultrasonic irradiation for 6 hours and increased aeration of 200L·h-1,its N removing efficiency can be further improved up to 98%.

Key words: magnesium-ammonium-phosphate, poultry feces, nitrogen and phosphorus removal, ultrasonic

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