颗粒硅藻土在深床反硝化处理中的应用研究

发布时间：2017-12-27 00:16

本文关键词：颗粒硅藻土在深床反硝化处理中的应用研究　出处：《环境科学与技术》2016年S2期 　论文类型：期刊论文

【摘要】：采用反硝化滤柱试验装置对比研究了颗粒硅藻土代替传统海砂作为深床反硝化处理的生物载体的可行性。试验结果表明:在相同的进水条件下,颗粒硅藻土滤料的反硝化滤柱比海砂滤料反硝化滤柱的挂膜时间缩短约2 d,生物膜量提高了92.3%,且挂膜均匀,滤柱工作周期延长至少15%,反冲洗压力降降低36.4%,能耗降低了30%。通过处理近似工程的试验水,研究颗粒硅藻土和海砂滤料装置对总氮和COD的去除效果,结果表明,颗粒硅藻土滤料的去除率分别为65.8%、29.8%,海砂滤料的去除率分别为63.2%、26.7%,2种滤料均可满足污水厂提标改造和深度脱氮的要求。颗粒硅藻土代替海砂用于深床反硝化工艺滤料完全可行。
[Abstract]:The feasibility study of the diatomite particles instead of the traditional sand as biological carrier deep bed denitrification denitrification treatment by filtration column contrast test device. Test results show that: in the water under the same conditions, the film-forming time was shortened by about 2 D denitrification filter granular diatomite filter media than denitrification filter sand filter column, the quantity of biofilm increased by 92.3%, and the hanging film uniform, at least 15% extended filter backwash cycle, pressure drop and low energy consumption 36.4%. Reduced by 30%. Approximate test water through treatment, removal effect on total nitrogen and COD of diatomite particles and sand filter device. The results showed that the removal rate of diatomite filter particles were 65.8%, 29.8%, sand filter material removal rate were 63.2%, 26.7%, 2 kinds of filter materials can meet the sewage treatment plant mentioned standard transformation and removal nitrogen requirements. Instead of sand particles of diatomite filter material for deep bed denitrification process is completely feasible.
【作者单位】：北京京城环保股份有限公司;
【分类号】：X703.1
【正文快照】： 《环境科学与技术》编辑部:(网址)http://fjks.chinajournal.net.cn(电话)027-87643502(电子信箱)hjkxyjs@vip.126.com随着社会的发展和进步,人民群众健康和可持续发展越来越受到关注,国家也逐步加大环境治理力度,逐渐提高了污染物排放标准[1]。污水通过常规生物处理工艺一般

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