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常温下向ABR反应器中加入惰性载体促进颗粒污泥形成 被引量:8

Granulation in anaerobic baffled reactor with inert carrier at room temperatures
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摘要 常温条件下(21~25℃),用实验室规模的2个厌氧折流板反应器进行颗粒污泥培养实验,向其中一个反应器(称为B反应器)接种厌氧污泥的同时加入惰性载体,另一个反应器(称为A反应器)作为对照只接种厌氧污泥,考察了惰性载体对ABR反应器中颗粒污泥的形成和反应器运行效果的影响。结果表明,惰性载体的加入促进了反应器中颗粒污泥的形成,提高了反应器的处理效果。运行162 d后,B反应器每个隔室均出现大量颗粒污泥,4个隔室中粒径〉0.5 mm的颗粒达到57.6%~72.7%;A反应器仅第1隔室中形成了大量颗粒污泥,其他3个隔室中粒径〉0.5 mm的颗粒仅占11.3%~34.7%。COD去除率稳定保持在85%以上所需时间,B反应器比A反应器少用了51 d。 Two lab-scale anaerobic baffled reactors were used in this experiment to culture granular sludge at room temperatures(21 -25 ℃ ), one of them (called reactor B) was put in inert carriers together with anaerobic sludge, as the other one (called reactor A)was just put in anaerobic sludge acting as a control reactor. This study assesses the influence of inert carrier addition on granule formation and disposing effect of ABR. The result indicates that inert carrier addition can accelerate granule formation and improve the disposing efficiency of ABR. After 162 days, granular sludge was obtained in each compartment of reactor B, but only in the initial compart- ment in reactor A. Granules bigger than 0.5 millimeter reach 57.6% to 72.7% in the four compartments of reactor B and only reach 11.3% to 34.7% in the other three compartments of reactor A. It is 51 days shorter than reactor A retaining more than 85% COD removal rate for reactor B.
出处 《环境工程学报》 CAS CSCD 北大核心 2008年第7期955-958,共4页 Chinese Journal of Environmental Engineering
关键词 厌氧折流板反应器 惰性载体 颗粒污泥 常温 anaerobic baffled reactor inert carrier granulation room temperature
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