温度对颗粒污泥处理畜禽养殖废水脱氮除磷效果的影响  

Effect of temperature on nitrogen and phosphorus removal from livestock and poultry breeding wastewater by granular sludge

作　　者：胡颖[1,2] 谢小东[3] 栾大鹏 HU Ying;XIE Xiao-dong;LUAN Da-peng(School of Civil Engineering,Fuzhou University,Fuzhou 350116,China;School of Public Utilities,Jiangsu Vocational College of Urban and Rural Construction,Changzhou 213147,China;Jiangsu JINZI Environmental Technology Co.,Ltd.,Changzhou 213000,China)

机构地区：[1]福州大学土木工程学院,福建福州350116 [2]江苏城乡建设职业学院公用事业学院,江苏常州213147 [3]江苏金梓环境科技股份有限公司,江苏常州213000

出　　处：《应用化工》2021年第7期1829-1832,1837,共5页Applied Chemical Industry

基　　金：江苏省住房和城乡建设厅科技计划项目(2016JH03)。

摘　　要：建立序批式反应器,分析了不同温度下颗粒污泥对畜禽养殖废水脱氮除磷的影响。结果表明,颗粒污泥可有效处理畜禽养殖废水,并当温度由10℃提高至30℃,化学需氧量(COD)、氨氮及总磷(TP)的去除效率分别由70.6%~72.8%提高至80.6%~81.3%,71.2%~75.5%提高至85.6%~88.9%,75.8%提高至81.4%。此外,温度升高,促进了颗粒污泥的浓度及沉降性,促进了颗粒污泥内胞外聚合物(EPS)的含量,尤其是蛋白质(PN)的含量,当运行温度由10℃提高至30℃,PN的含量由46.5 mg/g升高至59.6 mg/g,元素分析表明温度升高促进了颗粒污泥内Na和Mg的百分比。A sequencing batch reactor was established,the effects of granular sludge on nitrogen and phosphorus removal of livestock and poultry breeding wastewater at different temperatures were analyzed.The results showed that the granular sludge could effectively treat livestock wastewater.When the temperature increased from 10℃ to 30℃,the removal efficiency of chemical oxygen demand(COD),ammonia nitrogen and total phosphorus(TP)increased from 70.6%~72.8% to 80.6%~81.3%,71.2%~75.5% to 85.6%~88.9% and 75.8% to 81.4%,respectively.In addition,the increase of temperature promoted the concentration and settleability of granular sludge.The increase of temperature promoted the content of EPS,especially the content of protein.When the temperature increased from 10℃ to 30℃,the content of PN increased from 46.5 mg/g to 59.6 mg/g.Element analysis showed that the increase of temperature promoted the percentage of Na and Mg in granular sludge.

关 键 词：颗粒污泥 畜禽废水 总磷 胞外聚合物 

分 类 号：TQ085.4[化学工程] X703.1[环境科学与工程—环境工程]