污染控制技术及原理
叶长兵,韩相奎,毕冬,庄金鹏,刚旭.粉煤灰强化低浓度异波折板厌氧反应器的功效[J].环境科学学报,2008,28(10):1988-1992
粉煤灰强化低浓度异波折板厌氧反应器的功效
- Fly ash enhancement of the performance of a Modified Anerobic Baffled Reactor (MABR) in treatment of low strength wastewater
- 基金项目：国家自然科学基金资助项目(No.50778080)
- 作者
- 单位
- 叶长兵
- 1. 吉林大学环境与资源学院, 长春 130026; 2. 玉溪师范学院资源环境学院, 玉溪 653100
- 韩相奎
- 吉林建筑工程学院市政与环境工程学院, 长春 130021
- 毕冬
- 吉林建筑工程学院市政与环境工程学院, 长春 130021
- 庄金鹏
- 吉林建筑工程学院市政与环境工程学院, 长春 130021
- 刚旭
- 长春水务集团, 长春 130020
- 摘要：在接种污泥中加入粉煤灰,旨在强化低浓度改进型折流板厌氧反应器(异波折板厌氧反应器)的功效.研究结果表明,在粉煤灰强化作用下,可大大缩短装置的启动时间,连续运行50d即可启动成功.此时加入不同粒径(大于83μm、20～83μm,小于20μm)粉煤灰的,COD的平均去除率分别为74.31%、77.52%、72.81%,TP平均去除率分别为32.87%、34.07%、30.92%,最大比甲烷生产率分别为2.21、2.33、2.04mL·g-1·h-1.短HRT运行条件下的对比研究结果表明,强化厌氧反应装置最佳功效的粉煤灰粒径为20～83μm.基于试验分析结果,阐明了粉煤灰强化异波折板厌氧反应装置功效的机理,并解释了20～83μm粒径的粉煤灰强化效果最佳的原因.
- Abstract：In order to enhance the efficacy of Modified Anerobic Baffled Reaction(MABR)in low strength wastewater treatment,fly ash was mixed into inoculated anaerobic sludge.The results indicated that the start-up of all three test reactors run with fly ash enhancement was shortened markedly,and was completed after 50 days of operation.Average CODremoval efficiencies of the 1#,2# and 3# reactors with different fly ash particle sizes(>83 μm,20～83 μm and <20 μm)were 74.31%,77.2% and 72.81%;average TPremoval efficiencies were 32.87%,34.07% and 30.92%;and specific methane production capacities were 2.21,2.33 and 2.04 mL·g-1·h-1,respectively.The results of operation at short HRTs indicated that the optimal particle size of the fly ash was 20～83 μm.Based on the experimental results,the mechanism of fly ash enhancement of MABR efficacy and the reasons why fly ash particles of 20～83μm obtained optimal efficacy are described.
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