二级MBBR处理城市污水高品质水再生过程产生的反渗透浓水填料最佳填充率研究  

Study on carrier optimum filling ratio of two-stage MBBR for treatment of reverse osmosis concentrate from high-quality water reclamation of WWTP effluent

作　　者：程子芮 姜云超[1] 王海燕[2,3] 李培显[4] 杭前宇 李莉[2,3] 杨艳艳[1,2,3] 钟震[2,3,5] 

机构地区：[1]兰州大学资源环境学院,甘肃兰州730000 [2]环境基准与风险评估国家重点实验室,中国环境科学研究院,北京100012 [3]中国环境科学研究院水污染控制技术研究中心,北京100012 [4]山东工业陶瓷研究设计院有限公司,山东淄博255031 [5]兰州理工大学,甘肃兰州730050

出　　处：《环境工程技术学报》2017年第3期285-292,共8页Journal of Environmental Engineering Technology

基　　金：国家水体污染控制与治理科技重大专项(2014ZX07216-001)

摘　　要：针对城市污水处理厂尾水生产高品质再生水过程中产生的反渗透浓水NH_4^+-N浓度高、盐度高等特点,采用亚硝化-反硝化二级移动床生物膜反应器(二级MBBR)中试装置进行深度脱氮,比较填料填充率(filling ratio,FR)分别为51%、42%和32%情况下,二级MBBR对NH_4^+-N、NO_3^--N和CODCr等污染物的去除效果。结果表明:亚硝化MBBR中填料FR分别为51%、42%和32%时,NH_4^+-N平均去除率分别为67.0%±4.0%、71.3%±8.9%和73.2%±6.1%,FR优选32%;反硝化MBBR填料FR分别为51%、42%和32%时,NO_3^--N平均去除率分别为73.1%±4.2%、63.7%±9.4%和64.9%±10.4%。考虑到经济性,优选填料FR为32%。A pilot nitrosation-denitrification two-stage moving bed bio-film reactor （MBBR） was developed for the advanced nitrogen removal of high NH4^＋ -N and salinity reverse osmosis concentrate, which was produced from the high-quality water reclamation of wastewater treatment plant （WWTP） effluent. The removal effect of NH4^＋ -N,NO3-N, CODcr and other pollutants was compared under carrier filling ratio （FR） of 51%, 42% and 32%, respectively. The results showed that the average NH4^＋ -N removal rate was 67.0% ±4.0% , 71.3% ±8.9% and 73.2% ±6.1%, when the FR was 51%, 42% and 32% in the nitrosation MBBR, and the optimal FR was 32%. In the denitrifieation MBBR, the average NO3^- -N removal rate was 73. 1% ± 4. 2%, 63. 7% ± 9.4% and 64.9% ± 10.4%, when the FR was 51%, 42% and 32% respectively. Taking account of economical availability, 32% was selected as the optimum FR.

关 键 词：城市污水高品质水再生 反渗透浓水 亚硝化MBBR 反硝化MBBR 填料最佳填充率 

分 类 号：X703[环境科学与工程—环境工程]