摘要
采用气浮/改性凹凸棒土(M-ATP)/膜组合实验装置处理有机物和营养物含量高的的微污染湖泊水。结果表明,该装置对CODMn、NH_(4)^(+)-N和TP的平均去除率分别为70.3%、61.6%和68.4%。对于COD_(Mn),气浮单元的处理效果最好,去除率为33.0%,气浮和膜工艺之间存在负相关紧密关系;对于NH_(4)^(+)-N和TP,M-ATP单元的处理效果最好,去除率分别为31.6%和31.9%,气浮均和M-ATP工艺之间存在负相关紧密关系。在90 d的实验周期中,膜过滤装置跨膜压差从初期的2.3kPa增至末期的4.5 kPa,增长幅度较小,膜污染程度较低。
The air floatation/modified attapulgite(M-ATP)/membrane combined test device was used to treat the micro-polluted lake water with high content of organic matter and nutrient.The results showed that,the average removal rate of CODMn,NH_(4)^(+)-N and TP of this combined device were70.3%,61.6%and 68.4% respectively.It could be seen that for CODMn,the treatment effect of air floatation unit was the best,and the removal rate was 33.0%.There was a close negative correlation between air flotation and membrane technology.For NH_(4)^(+)-N and TP,the treatment effect of M-ATP unit was the best,the removal rates were 31.6% and 31.9% respectively.There was a close negative correlation between air flotation and M-ATP process.In the 90 d test period,the transmembrane pressure of the membrane filtration device increased from the initial 2.3 kPa to 4.5 kPa at the end,with a small increase and low membrane pollution.
作者
赵昌爽
徐晓平
阮仁俊
孙俊伟
操家顺
刘强
ZHAO Changshuang;XU Xiaoping;RUAN Renjun;SUN Junwei;CAO Jiashun;LIU Qiang(College of Civil Engineering and Architecture,Anhui Polytechnic University,Wuhu 241000,China;College of Environment,Hohai University,Nanjing 210098,China;School of Environmental Engineering,Xuzhou Institute of Technology,Xuzhou 221018,China)
出处
《水处理技术》
CAS
CSCD
北大核心
2021年第2期90-94,共5页
Technology of Water Treatment
基金
国家自然科学基金面上项目(51978001)
安徽省自然科学基金面上项目(1808085ME133)
安徽工程大学校级课题(KZ42020243)
安徽工程大学科学与研究预研项目(Xjky110201911)
教研论文项目(2018tszy01)。
关键词
气浮
改性凹凸棒土
膜过滤
微污染湖泊水
机制
air flotation
modified attapulgite
membrane filtration
micro-polluted lake water
mechanism
