广西师范大学学报（自然科学版） ›› 2022, Vol. 40 ›› Issue (4): 215-226.doi: 10.16088/j.issn.1001-6600.2021062805

• 研究论文 • 上一篇    下一篇

低温下厌氧MBBR不同填料挂膜启动特性研究

解清杰1*, 王帆1, 阿琼2, 熊新港1, 常铖炜1, 姜姗1   

  1. 1. 江苏大学环境与安全工程学院,江苏镇江 212013;
    2. 西藏自治区环境科学研究所,西藏拉萨 850000
  • 发布日期:2022-08-05
  • 通讯作者: 解清杰(1973—),男,河北沧州人,江苏大学教授,博士。E-mail:xieqingjie73@163.com
  • 基金资助:
    国家自然科学基金(31971472)

Startup Characteristics in Anaerobic Moving-bed Biofilm Reactor with Different Fillers at Low Temperature

XIE Qingjie1*, WANG Fan1, A Qiong2, XIONG Xin’gang1, CHANG Chengwei1, JIANG Shan1   

  1. 1. School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang Jiangsu 212013, China;
    2. Environmental Science Institute of Tibet Autonomous Region, Lasa Xizang 850000, China
  • Published:2022-08-05

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摘要： 为了适应高寒缺氧地区特殊的环境和水质,选取厌氧MBBR(moving-bed biofilm reactor)工艺处理该地区的低温农村生活废水,通过考察Levapor海绵填料、聚乙烯K3填料和聚氨酯海绵填料在自然挂膜启动下,填料上生物膜的形态、对实际废水的处理效果、生物膜增殖速率和比呼吸速率,探究3种填料的启动特征。结果表明,生物膜先出现在K3填料的内部和多孔填料的外部,并随着反应器内溶解氧的消耗,变为黑色的厌氧生物膜;厌氧反应器对氨氮和总磷的去除效果不佳,实验末期去除率分别为-15%~8%和-10%~15%;2种多孔海绵填料对COD的去除效率更高、生物膜增殖速度更快,但寿命短并且内源比呼吸速率更高;K3填料对COD的去除率稳定上升,生物膜更新速度快而挂膜慢,但内源比呼吸速率低,在机械搅拌下寿命更长,更适合作为厌氧MBBR反应器的生物载体。

关键词: 低温, 生活废水, 厌氧, MBBR反应器, 填料, 自然挂膜, 去除率, 呼吸速率

Abstract: In order to adapt to the special environment and water quality in the high cold and anoxic area, the anaerobic MBBR process was selected to treat the low temperature rural wastewater, and the startup characteristics of three kinds of fillers were explored by investigating the morphology of biofilm on the fillers, the treatment effect on actual wastewater, the biofilm proliferation rate and the respiratory rate per gram of Levapor sponge filler, K3 filler and polyurethane sponge filler. The results showed that the biofilm appeared inside the K3 packing and outside the porous packing at first,then became black anaerobic biofilm with the consumption of dissolved oxygen in the reactor.The removal efficiency of ammonia nitrogen and total phosphorus in anaerobic reactor was low,and the removal rates were -15%-8% and -10%-15% at the last stage, respectively. The porous sponge fillers had higher COD removal rate, faster biofilm proliferation speed, but had shorter service life and higher endogenous specific respiration rate, while the removal rate of COD by K3 filler increased steadily, and K3 filler had slower biofilm formation speed because of its faster biofilm renewal speed, but had lower endogenous specific respiration rate, and longer service life under mechanical stirring, so it is more suitable for the biological carrier of anaerobic MBBR reactor.

Key words: low temperature, domestic wastewater, anaerobic, moving-bed biofilm reactor, filler, natural inoculation, removal ratio, respiratory rate

中图分类号: 

  • X703
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