摘要
以乙酸钠、乙醇、葡萄糖3种有机物作为外加碳源,以城市污水处理厂二沉池出水为原水,研究了反硝化生物滤池的反硝化效能,并分析了碳氮比和水力停留时间(HRT)对反硝化脱氮效果的影响。结果表明,反硝化生物滤池具有较高的处理负荷,当HRT≥10 min时,乙酸钠滤池和乙醇滤池对NO3--N和TN的去除率都能达到90%以上,葡萄糖滤池能达到80%以上;当m(C)/m(N)≥5时,乙酸钠滤池和乙醇滤池对NO3--N和TN的去除率都能达到90%以上;当m(C)/m(N)≥8时,葡萄糖滤池对NO3--N和TN的去除率达到80%以上。
The denitrification treatment of secondary effluent from municipal wastewater treatment plant was performed in denitrification biofilter with sodium acetate, ethanol, glucose as external carbon source, respectively. The effect of C/N and HRT on nitrogen removal efficiency was analyzed. The results showed that the denitrification biofilter had high processing load. When HRT≥10 min, the NO3^--N and TN removal rate of filters with sodium acetate and ethanol reached more than 90% and the filter with glucose reached over 80%. When m（C）/m（N）≥5, the NO3^--N and TN removal rate of filters with sodium acetate and ethanol reached more than 90%. When m（C）/m（N）≥8, the NO3^--N and TN removal rate of filter with glucose reached over 80%.
出处
《水处理技术》
CAS
CSCD
北大核心
2015年第11期82-85,共4页
Technology of Water Treatment
基金
深圳市战略性新兴产业发展专项资金(ZDSY20120619093952884)
深圳市南山区重点企业和创新机构扶持分项资金(KC2013ZDZJ0005A)
