环境工程学报2025，Vol.19Issue(5)：1259-1270,12.DOI:10.12030/j.cjee.202411039
硫自养反硝化脱氮滤池在处理焦化废水中的应用
Application on the treatment of coking wastewater using sulfur autotrophic denitrification filter
摘要
Abstract
To explore the nitrogen removal efficiency and specific operational conditions of a sulfur autotrophic denitrification filter in treating coking wastewater,this study constructed a pilot-scale experimental system with a treatment scale of 500 L·h-1.The system focused on parameters such as hydraulic retention time and backwashing frequency,and conducted a 196 d field experiment.The actual operational results of the filter showed that it is more suitable for low-concentration(total nitrogen concentration below 50 mg·L-1)nitrogen removal.The filter demonstrated enrichment advantages for Sulfurimonas and Thiobacillus,with good nitrogen removal efficiency,low operational costs,and strong resistance to shock loads.The nitrite nitrogen concentration could be reduced to 0.7 mg·L-1,with a cumulative removal rate of up to 98.5％,and the total nitrogen concentration could be as low as 6.3 mg·L-1,with an average removal rate of 56.4％.After long-term operation,the filter media showed minimal loss and little change in composition,indicating its practical application value.关键词
硫自养反硝化/焦化废水/脱氮/生物滤池Key words
sulfur autotrophic denitrification/coking wastewater/nitrogen removal/biofilter分类
资源环境引用本文复制引用
江优优,涂辉,王婷,李佳琳,吴飞,靳长征,范自俐,李柏林..硫自养反硝化脱氮滤池在处理焦化废水中的应用[J].环境工程学报,2025,19(5):1259-1270,12.基金项目
国家自然科学基金资助项目(42277055) （42277055）
国家大学生创新创业训练计划资助(S202310497271) （S202310497271）
