Please wait a minute...
J4  2011, Vol. 45 Issue (2): 358-363    DOI: 10.3785/j.issn.1008-973X.2011.02.026
环境工程     
超高效厌氧生物反应器床层能量耗散率
陈小光, 郑平
浙江大学 环境与资源学院,浙江 杭州 310029
Bed energy dissipation rate of super-high-rate anaerobic bioreactor
CHEN Xiao-guang, ZHENG Ping
Department of Environmental Engineering, Zhejiang University, Hangzhou 310029, China
 全文: PDF  HTML
摘要:

为指导超高效厌氧生物反应器的功率匹配和操作优化,加速反应器工程化开发,通过向反应器床层分别投加1 500、2 500和3 500 mL厌氧颗粒污泥,采用质量分数为0.5%的稀硫酸溶液模拟进料,采用化学反应生成CO2(饱和NaHCO3+稀硫酸)模拟生物产气,研究了反应器床层处于固定态、流化态和输送态时的能量耗散特征,建立了床层处于固定态和流化态时的能量耗散模型.试验结果表明:所建模型的模拟值与实测值吻合较好,可用预测同类高效厌氧反应器床层能量耗散率;床层处于固定态、颗粒结团状态、液固两相流化态以及气液固三相流化态的最大能量耗散率分别为0.143、4.449、2.173和11.132 W/m3.其中,最大值11.132 W/m3是超高效厌氧反应器功率匹配的重要依据.

Abstract:

In order to guide power matching and operation optimization of superhighrate anaerobic bioreactor (SAB), and accelerate the engineering application of SAB, this work mainly concentrated on energy dissipation characteristics of SAB under the states of nonfludized bed, fluidizaed bed and transportation bed, respectively, which were investigated by using anaerobic granular sludge, simulation influent and gas production. The SAB was filled with 1.5 L, 2.5 L and 3.5 L anaerobic granular sludge, respectively, and was fed with sulfuric acid solution (0.5%, w/w). Gas was produced by chemical reaction between sulfuric acid and saturated sodium bicarbonate. Bed energy dissipation rate (Ø) models were established under the states of nonfludized bed and fluidized bed, respectively. The predictions from these models agree well with the experimental data and, therefore, they can be used to estimate Ø of SAB. The maximum Ø under the states of nonfludized bed, granular sludge agglomeration, liquidsolid two-phase fluidizaed bed and gas-liquid-solid tree-phase fluidized bed are 0.143 W/m3, 4.449 W/m3, 2.173 W/m3 and 11.132 W/m3, respectively. Thereinto, the maximum Ø value of 11.132 W/m3 is one of the basic parameters for power matching.

出版日期: 2011-03-17
:  X 703  
基金资助:

国家“863”高技术研究发展计划资助项目(2009AA06Z311);浙江省重大科技专项资助项目(2010C13001).

通讯作者: 郑平,男,教授,博导.     E-mail: pzheng@zju.edu.cn
作者简介: 陈小光(1979—),男,江西东乡人,博士生,从事废水处理设备及工艺研究. E-mail: arcxg1979@163.com
服务  
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章  

引用本文:

陈小光, 郑平. 超高效厌氧生物反应器床层能量耗散率[J]. J4, 2011, 45(2): 358-363.

CHEN Xiao-guang, ZHENG Ping. Bed energy dissipation rate of super-high-rate anaerobic bioreactor. J4, 2011, 45(2): 358-363.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2011.02.026        http://www.zjujournals.com/eng/CN/Y2011/V45/I2/358

[1] YOUNG J C, DAHAB M F. Effect of media design on the performance of fixedbed anaerobic reactors [J]. Water Science Technoloy, 1982, 15(8): 369-383.
[2] LETTINGA G, FIELD J A, SIERRAALVAREZ R. Future perspectives for the anaerobic treatment of forest industrial wastewaters [J]. Water Science and Technology, 1991, 24(3/4): 91-102.
[3] LENS P N L, VAN DEN BOSCH M C, HULSHOFF POL L W. Effect of staging on volatile fatty acid degradation in a sulfidogenic granular sludge reactor [J]. Water Research, 1998, 32(4): 1178-1192.
[4] SEGHEZZO L, ZEEMAN G, VAN LIEL J B, et al. A review: the anaerobic treatment of sewage in UASB and EGSB reactors [J]. Bioresource Technology, 1998, 65: 175-190.
[5] PEREBOOM J H F, VEREIJKEN T L F M. Methanogenic granule development in full scale internal circulation reactors [J]. Water Science and Technology, 1994, 30(8): 9-21.
[6] 郑平,陈建伟,唐崇俭,等.一种新型螺栓式自循环厌氧反应器.中国,ZL200720106182.6[P].2008: -01-09.
ZHENG Ping, CHEN Jianwei, TANG Congjian, et al. A new type of spiral automatic circulation anaerobic reactor: China, ZL200720106182.6[P]. 2008: -01-09.
[7] 陈建伟,唐崇俭,郑平,等.实验室模拟高负荷SPAC厌氧反应器运行[J].生物工程学报,2008,24(8): 1413-1419.
CHEN Jianwei, TANG Congjian, ZHENG Ping, et al. Performance of labscale SPAC anaerobic bioreactor with high loading rate [J]. Chinese Journal Biotechnology, 2008, 24(8): 1413-1419.
[8] BUFFIERE P, FONADE C, MOLETTA R. Liquid mixing and phase holdups in gas producing fluidized bed bioreactors[J]. Chemical Engineering Science, 1998, 53(4): 617-627.
[9] YU H B, RITTMANN B E. Predicting bed expansion and phase holdups for threephase fluidizedbed reactors with and without biofilm [J]. Water Research, 1997, 31(10): 2604-2616.
[10] SEAN C, GAVIN C, VINCENT O F. Development of microbial community structure and activity in a highrate anaerobic bioreactor at 18℃ [J]. Water Research, 2006, 40(5): 1009-1017.
[11] 张劲军,严大凡.利用能量耗散率计算管流的平均剪切率[J].石油学报,2002,23(5): 88-91.
ZHANG Jinjun, YAN Dafan. Calculation of average shear rate in pipe flow based on energy dissipation rate [J]. Acta Petrol Ei Sinica, 2002, 23(5): 88-91.
[12] 陈小光,郑平,唐崇俭,等.超高效厌氧生物反应器能耗特征[J].化工学报,2009,60(12): 3097-3102.
CHEN Xiaoguang, ZHENG Ping, TANG Chongjian, et al. Characteristics of energy dissipation for superhighrate anaerobic bioreactor [J]. CIESC Journal, 2009, 60(12): 3097-3102.
[13] HUANG J S, WU C S. Specific energy dissipation rate for fluidizedbed bioreactors [J]. Biotechnology and Bioengineering, 1996, 50(6): 643-654.
[14] COULSON J M, RICHARDSON J F, BACKHURST J R, et al. Chemical engineering volume 2, 4th Edition: particle technology & separation processes [M]. Newyork: Pergamon Press, 1990: 137-140.
[15] 陈敏恒,丛德滋,方图南,等.化工原理(上册)[M].2版.北京:化学工业出版社,1990: 162-167.
[16] WU C S, HUANG J S, CHOU H H. Influence of internal biogas production on hydrodynamic behavior of anaerobic fluidizedbed reactors [J]. Water Research, 2006, 40(1): 126-136.

[1] 胡凯, 赵庆良, 苗礼娟, 王琨, 邱微. 剩余污泥超声强化预处理及其厌氧消化效果[J]. J4, 2011, 45(8): 1463-1468.