常温下生物陶粒反应器中亚硝酸型硝化的试验研究  

Experimental research on nitritation in bio-ceramic reactor at ambient temperature

作　　者：马放[1] 王弘宇[1] 周丹丹[1] 左微[1] 

机构地区：[1]哈尔滨工业大学市政环境工程学院,哈尔滨150090

出　　处：《给水排水》2005年第10期40-44,共5页Water & Wastewater Engineering

摘　　要：采用生物陶粒反应器,研究了常温下亚硝酸型硝化的实现过程。试验结果表明,在水力负荷0．6m／h,气水比(3-5):1,水温20-25℃,进水CODCr负荷1．91-5．59kg／(m3·d),氨氮负荷0．77-1．33kg／(m3·d)的条件下,生物陶粒反应器对氨氮的平均去除率可达到80．91％,出水中亚硝酸氮占到亚硝酸氮和硝酸氮总和的90％以上。对生物陶粒反应器中各种不同无机氮化合物沿程变化的研究进一步表明,在反应器中实现了稳定的亚硝酸盐积累。对影响亚硝酸型硝化的各因素进行了分析,认为溶解氧控制是常温下反应器实现亚硝酸型硝化的最关键因素。Nitritation was re,arched experimentally in a bio-ceramic reactor. At condition ot influent hydraulic loading 0.6 man, gas-to-water ratio 3 to 5 ： 1, temperature 20 to 25℃, CODcr loading rate 1.91 to 5.59 kg/（m^3·d） and NH3 - N loading rate 0.77 to 1.33 kg/（m^3·d）, the average ammonia nitrogen removal of 80.91% was obtained, and the nitrite nitrogen accounts for 90 % or more of the sum of nitrate nitrogen and nitrite nitrogen in the effluent. The variation of several inorganic nitrogen compounds along the influent flow showed that stable nitrite accumulation was achieved in the reactor. The factors affecting nitritation were also analyzed and the dissolved oxygen was considered to be the key factor in achieving nitritation at ambient temperature.

关 键 词：亚硝酸型硝化 生物陶粒反应器 亚硝酸盐积累 溶解氧 试验研究 常温 亚硝酸氮 水力负荷 CODCr 溶解氧控制 

分 类 号：TU991.2[建筑科学—市政工程] X703.1[环境科学与工程—环境工程]