华南理工大学学报(自然科学版) ›› 2009, Vol. 37 ›› Issue (10): 145-149.

• 环境科学与技术 • 上一篇    下一篇

一体化两相厌氧反应器处理猪场废水的启动研究

浦跃武1  郭梅君1  刘族安2   

  1. 1.华南理工大学 生物科学与工程学院, 广东 广州 510006; 2. 武鸣县安宁淀粉有限公司, 广西 武鸣 530100
  • 收稿日期:2008-08-02 修回日期:2008-10-30 出版日期:2009-10-25 发布日期:2009-10-25
  • 通信作者: 浦跃武(1964-),男,副教授,博士.主要从事发酵工程研究. E-mail:g96123@scut.edu.cn.
  • 作者简介:浦跃武(1964-),男,副教授,博士.主要从事发酵工程研究.
  • 基金资助:

    广西科学研究与技术开发计划项目(4-2-3)

Investigation into Start-Up of Integrated Two-Phase Anaerobic Reactor Treating Piggery Wastewater

Pu Yue-wu Guo Mei-jun1  Liu Zu-an2   

  1. 1.School of Biological Science and Engineering, South China University of Technology, Gnangzhou 510006, Guangdong, China; 2. Wuming Anning Starch Limited Company, Wuming 530100, Guangxi, China
  • Received:2008-08-02 Revised:2008-10-30 Online:2009-10-25 Published:2009-10-25
  • Contact: 浦跃武(1964-),男,副教授,博士.主要从事发酵工程研究. E-mail:g96123@scut.edu.cn.
  • About author:浦跃武(1964-),男,副教授,博士.主要从事发酵工程研究.
  • Supported by:

    广西科学研究与技术开发计划项目(4-2-3)

摘要: 采用自行设计的一体化两相厌氧反应器处理猪场废水,对启动过程进行研究.在37G℃下,通过交替增加进水化学需氧量(COD)浓度和缩短水力停留时间(HRT)来提高系统的COD容积负荷(VLR),采用动力学控制与pH值调节相结合的方法对产酸相和产甲烷相进行分相.经过68天的运行,系统的VLR达到8.84kg/(m3·d),HRT为20.95h,产酸相的COD去除率基本维持在20.OO%~30.00%,系统的COD去除率稳定在80.00%以上.其中产酸相的VLR和HRT分别为31.11kg/(m3·d)和5.95h,产甲烷相的VLR和HRT分别为9.39kg/(m3·d)和15.00h.出水悬浮固体(SS)含量均在400mg/L以下,去除率最高可达92.80%,沼气的容积产气率达到2.57m3/(m3·d).

关键词: 猪场废水, 一体化两相厌氧反应器, 启动过程

Abstract:

An integrated two-phase anaerobic reactor was designed to treat piggery wastewater, and the corresponding start-up process was investigated. In this investigation, the volumetric loading rate (VLR) of the system was raised by alternately increasing the influent COD ( Chemical Oxygen Demand) concentration and decreasing the hydraulic retention time (HRT) at 37℃. Moreover, acidogenic and methanogenic phases were separated by controlling the VLR in combination with adjusting the pH value of the influent. The results show that ( 1 ) after a 68-day operation, a COD removal of 20. 00% - 301 00% in the acidogenic phase and a COD removal of more than 80. 00% in the whole system are respectively achieved at a VLR of 8.84kg/(m3· d) and a HRT of 20.95h; (2) the acidogenic phase is operated up to a VLR of 31.11 kg/( m3·d) with a HRT of 5.95 h whereas the methanogenic phase is loaded up to a VLR of 9.39 kg/( m3 ·d) with a HRT of 15 h ; ( 3 ) the suspended solid (SS) in the effluent is of a content of less than 400 mg/L and a highest removal up to 92.80% ; and (4) the volumetric produc- tion rate of biogas reaches 2. 57m3/( m3· d).

Key words: piggery wastewater, integrated two-phase anaerobic reactor, start-up process