序批式反应器中好氧颗粒污泥处理无机废水稳定性  

Stability of Aerobic Granular Sludge for the Treatment of Inorganic Wastewater in a Sequencing Batch Reactor

作　　者：李正昊 罗怡 刘立良 康建林 李广明 聂嘉乐 龙焙[1] LI Zhenghao;LUO Yi;LIU Liliang;KANG Jianlin;LI Guangming;NIE Jiale;LONG Bei(School of Civil and Surveying&Mapping Engineering,Jiangxi University of Science and Technology,Ganzhou 341000,China;Ganzhou Kejing Environmental Protection Engineering Technology Co.,Ltd,Ganzhou 341000,China)

机构地区：[1]江西理工大学土木与测绘工程学院,江西赣州341000 [2]赣州科净环保工程技术有限公司,江西赣州341000

出　　处：《人民珠江》2024年第9期64-73,共10页Pearl River

基　　金：国家自然科学基金资助项目(52060007);江西理工大学清江青年英才支持计划(JXUSTQJYX2020008);江西理工大学研究生创新专项资金项目(XY2022-S128)。

摘　　要：分别接种好氧颗粒污泥(Aerobic Granular Sludge,AGS)、AGS+立体空心填料、AGS+聚氨酯海绵填料和AGS+立体空心填料+聚氨酯海绵填料启动4个序批式生物膜反应器(SBR,R1、R2、R3及R4),探索其处理无机高氨氮(250~500 mg/L)废水的脱氮性能与稳定性。前30 d内四反应器中均出现大量颗粒的破碎及污泥量的明显减小。31 d补充AGS后,R1小颗粒比例逐渐增大,在55~85 d内成功实现小粒径AGS的稳定性维持,R3逐渐实现生物膜及AGS的共存,但R2及R4再次重复颗粒的持续解体过程。R1可实现48%左右总无机氮(Total Inorganic Nitrogen,TIN)去除和99%左右的氨氮去除。R2中立体空心填料在30 d内实现挂膜,但脱氮效果波动较大,最终实现了49%左右TIN去除与99%左右氨氮去除。R3中海绵填料在7 d内实现挂膜,表现出良好的抗冲击负荷能力,对TIN及氨氮的去除率分别在52%左右和99%左右。R4中立体空心填料40 d完成挂膜、海绵填料10 d成功挂膜,脱氮效果不稳定,最终实现了40%左右TIN去除与99%左右氨氮去除。Four sequencing batch reactors(SBR,R1,R2,R3 and R4)were started by seeding aerobic granular sludge(AGS),AGS/stereohollow packing media,AGS/polyurethane sponge packing media,and AGS/stereohollow packing media/polyurethane sponge packing media,respectively,so as to explore their nitrogen removal performances and granular stability in treating inorganic wastewater with high ammonia nitrogen(250~500 mg/L).In Days 1~30,the breakage of a large number of granules and the significant decrease of sludge concentration were observed in the four reactors.After the addition of AGS on Day 31,AGS with small particle size gradually dominated and maintained its stability in R1,and the coexistence of biofilm and AGS gradually realized in R3.However,the continuous granular disintegration process was repeated again in R3 and R4.R1 demonstrated the removal efficiencies of approximately 48%and 99%for total inorganic nitrogen(TIN)and ammonia nitrogen,respectively.The attached growth of biofilm on stereohollow packing media in R2 was successfully achieved within 30 days.However,its nitrogen removal performance fluctuated greatly,and the reactor eventually demonstrated the removal efficiencies of approximately 49%and 99%for TIN and ammonia nitrogen,respectively.The attached growth of biofilm on polyurethane sponge packing media in R3 was successfully realized within 7 days.The reactor showed good impact load resistance,and the removal efficiencies of TIN and ammonia nitrogen were approximately 52%and 99%,respectively.In R4,the attached growth of biofilm on stereohollow packing media was completed within 40 days,while the attached growth of biofilm on polyurethane sponge packing media was successfully achieved within 10 days.Its nitrogen removal performance was unstable,and the removal efficiencies of TIN and ammonia nitrogen were approximately 40%and 99%,respectively.

关 键 词：好氧颗粒污泥 无机废水 生物膜 脱氮 稳定性 

分 类 号：X703.1[环境科学与工程—环境工程]