生物-纳米改性滤料处理氨氮与COD_(Mn)研究  

Research on NH_4^+-N and COD_(Mn)Treatment Efficiency by Biological-Nano Modified Filter Materials

作　　者：李冬梅[1] 黄俊 吴翠如 梁金玲[1] 黄明珠 王子熙 LI Dongmei;HUANG Jun;WU Cuiru;LIANG Jinling;HUANG Mingzhu;WANG Zixi(Faculty of Civil and Transportation Engineering Construction,Guangdong University of Technology,Guangzhou 510006,China;The Ethel Walker School,Simsbury United States,06070)

机构地区：[1]广东工业大学土木与交通工程学院,广东广州510006 [2]埃尔沃克中学,康涅狄格锡姆斯伯里06070

出　　处：《水处理技术》2018年第9期124-128,131,共6页Technology of Water Treatment

基　　金：国家自然科学基金(51378129;51108094);广东省自然科学基金(2017A030313321;2015A030313494);广东省高教厅-普通高校特色创新类项目(2016KTSCX035)

摘　　要：针对南方某地区含氨氮的微污染原水,采用聚氨酯泡沫悬浮填料生物预处理与纳米氧化石墨烯改性沸石等3种滤料联合工艺(简称工艺1、工艺2、工艺3)进行强化处理效果实验研究。结果表明,优化工况条件为:工艺1和工艺2,填料体积填充率10%,COD_(Mn)/ρ(TN)=1:1,气水体积比0.5:1,滤速6 m/h;工艺3,填料体积填充率10%,COD_(Mn)/ρ(TN)=2:1,气水体积比0.75:1,滤速6 m/h。在优化运行条件下,3种工艺的强化处理效果,NH_4^+-N的去除率分别为86.6%、94.2%和94.4%,TN的去除率分别为18.6%、21.8%和31.4%,COD_(Mn)的去除率分别为81.4%、83.2%和85.1%。纳米氧化石墨烯改性沸石表面含有大量活性官能团,比表面积大,表面生物量是其它2种滤料的1.3~1.8倍,工艺3更易实现同步硝化反硝化。Aimed at the N4＋-N containing micro-polluted raw water in some southern region, the enhanced treatment efficiency by the experiment of polyurethane foam filler biological pretreatment combined with nano graphene oxide modified zeolite （N-GOMZ） and other three kinds of filter materials （Technology. 1, Technology.2, Technology.3 for short respectively） were studied. The results showed that, the optimum operation conditions were as follow, for Technology. 1 and Technology.2, the volume filling rate of fillers, CODMn/ρ（TN）, air to water volume ratio and filtering velocity was 10%, 1：1, 0.5：1 and 6 m/h respectively; for Technology.3, the volume filling rate of fillers, CODMn/ρ（TN）, air to water volume ratio and filtering velocity was 10%, 2：1, 0.75：1 and 6 m/h respectively. The removal rate of NH4＋-N by three combined technology was 86.6%, 94.2% and 94.4% respectively under optimum operation conditions, and the TN removal rate was 18.6%, 21.8% and 31.4% respectively and CODMn removal rate was 81.4%, 83.2% and 85.1% respectively. The N-GOMZ had a large specific surface area and been covered with a large amount of active functional groups on its surface, the surface biomass on the N-GOMZ was 1.3-1.8 times of that of the other two filter materials, so the Technology.3 was more likely to achieve simultaneous nitrification and denitrification （SND） than the other two combined technology.

关 键 词：NH4+-N TN CODMN 聚氨酯泡沫悬浮填料生物预处理 纳米改性滤料强化过滤 同步硝化反硝化 碳氮比 

分 类 号：X703.1[环境科学与工程—环境工程]