IC厌氧反应器的污泥颗粒化研究 |
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引用本文: | 马溪平,苏和,徐成斌,周世嘉,李银萍.IC厌氧反应器的污泥颗粒化研究[J].安徽农业科学,2010,38(21):11431-11433. |
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作者姓名: | 马溪平 苏和 徐成斌 周世嘉 李银萍 |
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作者单位: | 辽宁大学环境学院,辽宁沈阳,110036 |
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基金项目: | 辽宁省教育厅重点实验室项目,国家水专项资金,辽宁省教育厅科学研究一般项目,辽宁省科技厅科学研究一般项目 |
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摘 要: | 目的]研究IC反应器的污泥颗粒化规律化。方法]研究了容积负荷、酸化率、选择压、无机离子、停留时间、pH值、碱度、挥发性脂肪酸(VFA)对污泥颗粒化过程的影响。结果]试验用普通厌氧消化污泥启动,通过不断增加反应器的容积负荷,缩小停留时间,经122d运行,形成粒径为0.5~1.5mm的形状不规则颗粒污泥,反应器容积负荷达到14kgCOD/m3.d,产气量78L/d,COD去除率达85%以上。结论]较高的有机负荷及其产生的较高的水力剪切力和Ca2+有利于形成密实的颗粒污泥;工艺流程中的酸化池和循环罐有利于形成甲烷活性强的颗粒污泥。
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关 键 词: | IC厌氧反应器 颗粒污泥 污泥性质 |
The Research of Sludge Granulation in IC Anaerobic Reactor |
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Institution: | MA Xi-ping et al(School of Environmental Sciences,Liaoning University,Shenyang,Liaoning 110036) |
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Abstract: | Objective] The aim of was to study granular regulation of the IC reactor.Method] Effect of volumetric load,acidification rate,selective pressure,inorganic ions,retention time,pH,alkalinity,volatile fatty acids(VFA)on sludge granulation processes was studied.Result]Trial started with ordinary sludge anaerobic digestion,increasing the reactor volume load and reducing the HRT,through the 122 d running,0.5-1.5 mm irregular granular sludge was formed,reactor volumetric loading reached 14 kg COD /m3·d,gas production was 78 L/d,COD removal rate was above 85%.Conclusion]High hydraulic shear force produced by high organic loading and Ca2+ were avorable for forming dense granular sludge,acidification tank and recycling cans were favorable for forming granular sludge of strong methane activity in the process. |
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Keywords: | IC anaerobic reactor Granular sludge Sludge character |
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