共查询到18条相似文献,搜索用时 187 毫秒
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实验制作了具有10个隔室的厌氧折流板反应器用于探讨其处理高浓度有机污水的性能和运行的稳定性。研究结果表明该反应器在较高有机负荷条件下可以维持较为稳定的运行且表现出优良的COD去除率(85%以上),运行50天后出现颗粒状污泥,颗粒结实而致密。在不同的有机负荷条件下的抗冲击能力强,COD的去除和运行稳定。 相似文献
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校园生活污水的厌氧-好氧低成本处理 总被引:1,自引:0,他引:1
王宗华 《南阳师范学院学报》2006,5(9):44-46
利用厌氧—好氧生物反应器对校园生活污水进行处理。实验结果表明:在厌氧区与好氧区体积比为5:1、水力停留时间(HRT)为6 h的条件下,出水CODCr去除率达到91.3%,浊度去除率达到94.6%,出水完全符合校园绿化、冲厕的要求;同时采用该装置处理校园生活污水与传统活性污泥法相比,前者明显降低了运行成本。 相似文献
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《实验室研究与探索》2018,(9)
针对现有实验室厌氧微生物培养使用的装置存在通用性差、价格昂贵、易爆炸及使用寿命短等问题,本研究设计、制备了一种模块化多功能实验室厌氧微生物培养装置,并将该装置用于严格厌氧微生物Geobacter sulfurreducens PCA及Geobacter grbiciae与Methanosarcina barkeri 800 co-culture的培养以验证其有效性。实验结果表明,该装置完全满足严格厌氧微生物的培养。设计及制备的厌氧微生物培养装置具有结构简单、体积可变、成本低及使用寿命长等优点,可用于二氧化碳、氮气及H_2/CO_2等气氛厌氧微生物的培养、分离及筛选。该装置为微生物学、环境微生物技术及发酵工程的实验教学创造了良好的实验平台,并取得了良好的实验教学效果。 相似文献
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赵欣 《邯郸职业技术学院学报》2008,21(2)
设计了不同尺寸和内构件的反应器,系统研究主要结构参数,包括内外筒直径比、反应器高径比、内筒上方液面高度和底隙高度以及操作参数通气量对该磁铁流化床反应器处理水结果的影响。实验分析主要过程参数如气含率、液体循环速度、氧传递系数及混合时间与结构参数、操作参数的相关性。为反应器的结构放大和性能变化预测提供理论基础。 相似文献
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针对现有实验室厌氧微生物培养装置通用性差、价格昂贵、不适合极端微生物培养及不能恒温等问题,设计、制备了一种实验室简易厌氧微生物培养基制备、接种与培养装置,并将该装置用于严格厌氧微生物Geobacter sulfurreducens PCA、Geobacter grbiciae及Methanosarcina barkeri 800的培养基制备、接种与培养以验证其有效性,实验结果表明该装置完全满足严格厌氧微生物的培养基制备、接种与培养。设计及制备的装置结构简单、成本较低、易于操作,可用于CO_2、N_2及H_2/CO_2等气氛厌氧微生物的培养基制备、接种及培养,为内蒙古科技大学"微生物学""环境微生物技术"及"发酵工程"的实验教学创造了良好的实验平台并取得了很好的效果。 相似文献
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近年来,有机污水处理技术的应用越来越广泛,尤其是高、中浓度有机污水处理领域。UASB(upflow anaerobic sludge blanket technique)污水处理技术,即上流式厌氧污泥床污水处理技术,主要用于处理高浓度有机废水。该技术是荷兰学者Lettinga等人在1980年提出的,它具有结构简单、负荷率高、水力停留时间短、能耗低和无需污泥回流装置等特点。目前,国外投入运行的生产性试验都取得了较好效果,投入运行的生产性装置已达数百座。国内在应用UASB反应器处理有机工业废水方面也做了大量的试验研究工作,总的来看,工业性生产装置建造的数量有限,尤其在工程实践中如何提高UASB反应器的处理效果、使设备稳定运行等方面的经验不多。 相似文献
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根据人为非定态操作技术和丁烷氧化制顺酐反应的特点,以CDS-804微反系统为基础,建立了一套用于丁烷氧化制顺酐固定床反应器浓度周期操作的实验装置,具有操作方便、运行可靠的特点。该装置也可用于其他烷烃选择氧化的人为非定态操作性能研究。 相似文献
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污水厌氧生物处理研究回顾与展望 总被引:1,自引:0,他引:1
在世界能源紧缺和环境污染不断加剧的背景下,污水厌氧生物处理技术经济可行,该技术能适应社会和环境的可持续发展要求,势必成为21世纪污水处理领域的核心技术.本文回顾了污水厌氧生物处理技术的发展历程,同时指出了污水厌氧生物处理过程中存在的问题及当前研究热点,并对其未来发展趋势作以展望. 相似文献
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徐功娣 《上海大学学报(英文版)》2006,10(2):179-184
1Introduction Dyeingwastewaterisakindofindustrialwastewater whichisdifficulttotreat.Itcontainsnotonlyhigh concentrationsofbiggermolecules,e.g.,nitryland aminocompounds,butalsoalargeamountofheavy metals,whicharetoxiccompositionformostof micro organisms.The… 相似文献
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陈红 《浙江大学学报(A卷英文版)》2004,5(6):727-732
Specific ATP content of volatile solids was measured to characterize the sludge activity in a sequential anaerobic/aerobic wastewater treatment system, with an upflow anaerobic sludge blanket (UASB) reactor and a three-phase aerobic fluidized bed (AFB) reactor. The wastewater COD level was 2000(3000 mg/L in simulation of real textile wastewater. The ATP content and the specific ATP contents of volatile solids at different heights of the UASB reactor and those of the suspended and immobilized biomass in the AFB reactor were measured. In the UASB reactor, the maximum value of specific ATP (0.85 mg ATP/g VS) was obtained at a hydraulic retention time (HRT) 7.14 h in the blanket solution. In the AFB reactor, the specific ATP content of suspended biomass was higher than that of immobilized biomass and increased with hydraulic retention time reaching a maximum value of 1.6 mg ATP/g VS at hydraulic retention time 4.35 h. The ATP content of anaerobes in the UASB effluent declined rapidly under aerobic conditions following a 2nd-order kinetic model. 相似文献
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INTRODUCTION limiting conditions, obligatory aerobic and an- aerobic bacteria will survive in a mixed culture Sequential anaerobic/aerobic wastewater treat- (Gerritse et al., 1992). Little is know about thement has received increasing attention for effective change in the activity of anaerobic bacteria whennutrient removal, enhanced de… 相似文献
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INTRODUCTION Coking wastewater is generated in the produc- tion of coke, coal gas, tar and other coke by-products The coking wastewater includes inorganic pollutants such as ammonia, cyanogen, sulfocyan, heterocycle compounds and polycyclic aromatic compounds such as phenol, oils, naphthalene, pyridine, quinoline and anthracites, which are difficult to biodegradation under aerobic conditions (Ganczarczyk, 1972). Dis- charge of coking wastewater to the environment may cause severe contamin… 相似文献
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综合讨论了厌氧折流板反应器(ABR)工艺特征,阐述了国内外关于ABR启动及实际应用的研究现状。认为ABR具有耐冲击负荷、对有毒物质适应性强、固液分离效果好等显著特点。因此,ABR作为一种新型高效生物处理技术,在我国废水处理中,特别是对高浓度有毒工业废水处理具有良好的研究开发价值。 相似文献
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Haimanot Habte Lemji Hartmut Eckstädt 《Journal of Zhejiang University. Science. B》2013,14(10):924-933
Evaluating the performance of a biotrickling filter for the treatment of wastewaters produced by a company manufacturing beer was the aim of this study. A pilot scale trickling filter filled with gravel was used as the experimental biofilter. Pilot scale plant experiments were made to evaluate the performance of the trickling filter aerobic and anaerobic biofilm systems for removal of chemical oxygen demand (COD) and nutrients from synthetic brewery wastewater. Performance evaluation data of the trickling filter were generated under different experimental conditions. The trickling filter had an average efficiency of (86.81±6.95)% as the hydraulic loading rate increased from 4.0 to 6.4 m3/(m2·d). Various COD concentrations were used to adjust organic loading rates from 1.5 to 4.5 kg COD/(m3·d). An average COD removal efficiency of (85.10±6.40)% was achieved in all wastewater concentrations at a hydraulic loading of 6.4 m3/(m2·d). The results lead to a design organic load of 1.5 kg COD/(m3·d) to reach an effluent COD in the range of 50–120 mg/L. As can be concluded from the results of this study, organic substances in brewery wastewater can be handled in a cost-effective and environmentally friendly manner using the gravel-filled trickling filter. 相似文献
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研究了组合工艺(高温55℃UASB反应器一常温三相好氧生物流化床)对含盐偶氮染料活性嫩黄X-6G的去除能效。试验结果表明:在水温为55℃,运行周期120d,水力停留时间18h的条件下,此工艺对于CODCr为600~1 000mg/L,含盐量为25~35g/L,活性嫩黄X-6G的浓度为40~50mg/L的染料废水,染料及CODCr的去除率可达80%~90%。 相似文献