工业水处理 ›› 2020, Vol. 40 ›› Issue (3): 102-106. doi: 10.11894/iwt.2019-0896

• 试验研究 • 上一篇    下一篇

新型填料复合多级MBBR工艺脱氮及污泥减量研究

刘永红(),李妙婕,杨谨如,王宁,李耀中   

  1. 西安工程大学环境与化学工程学院, 陕西西安 710048
  • 收稿日期:2019-03-08 出版日期:2020-03-20 发布日期:2020-03-20
  • 作者简介:刘永红(1967—),博士研究生,教授。E-mail:liuyhxa@hotmail.com
  • 基金资助:
    国家自然科学基金(21176197);陕西省水利厅科技计划项目(2017slkj-9);陕西省创新能力支撑计划项目(2019HBGC-34);陕西省教育厅专项科学研究计划项目(19JK0370);石狮市科技公共服务平台产学研项目003

Study on nitrogen removal and sludge reduction in a new type of filler composite multistage MBBR process

Yonghong Liu(),Miaojie Li,Jinru Yang,Ning Wang,Yaozhong Li   

  1. College of Environment and Chemical Engineering, Xi'an Polytechnic University, Xi'an 710048, China
  • Received:2019-03-08 Online:2020-03-20 Published:2020-03-20
  • Supported by:
    国家自然科学基金(21176197);陕西省水利厅科技计划项目(2017slkj-9);陕西省创新能力支撑计划项目(2019HBGC-34);陕西省教育厅专项科学研究计划项目(19JK0370);石狮市科技公共服务平台产学研项目003

摘要:

采用两种新型生物填料AMC和PBG复合多级MBBR工艺对某高校生活污水进行处理,研究该工艺对COD和NH4+-N的处理效果,并通过填料表征污泥微生物的变化,同时对污泥产量进行衡算,评价该工艺污泥减量化处理效果。研究结果表明:系统在容积负荷1.5 kgCOD/(m3·d)下连续运行20 d,对COD和NH4+-N的去除率分别达到82%和97%;载体表面和内部负载大量球菌、丝状菌,极大提高了系统内的污泥微生物保有量和微生物多样性;污泥产率仅为0.043 kgMLSS/kgCOD,具有明显的污泥减量效果。

关键词: 新型填料, MBBR工艺, 生活污水, 脱氮, 污泥减量

Abstract:

Combined with two kinds of new bio-filler AMC(anaerobic microorganism carrier) and PBG(porous biogel), the multi-stage MBBR process were used to treat domestic sewage in a university. The treatment effect of COD and NH4+-N was studied, and the change of sludge microorganisms was characterized through the filler. Meanwhile, the sludge yield was calculated and the effect of sludge reduction treatment was evaluated. The results show that:when the system was continuously operated for 20 days with a volumetric load of 1.5 kgCOD/(m3·d), and the removal rates of COD and NH4+-N were 82% and 97%, respectively. The carrier surface and internal load were loaded with a large amount of cocci and filamentous, which greatly improved the microbial biomass and microbial diversity in the system. The sludge yield was only 0.043 kgMLSS/kgCOD, which had obvious sludge reduction effect.

Key words: new carrier, MBBR process, domestic sewage, denitrification, sludge yield

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