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兼氧膜生物反应器处理养殖废水技术 总被引:1,自引:0,他引:1
《中国环保产业》2014,(10):71-71
由江西金达莱环保股份有限公司开发的兼氧膜生物反应器处理养殖废水技术,适用于畜禽养殖废水、生活污水和各类工业有机废水处理。主要技术内容 一、基本原理 通过污泥培养,兼氧膜生物反应器(MBR)内部污泥质量浓度可达1.5万~2万mg/L,形成以高效兼性厌氧菌(约占80%)为优势菌种的特性微生物体系。 相似文献
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对比传统活性污泥法与膜生物反应器MBR的工艺原理,简要阐述了膜生物反应器工艺的优点。对工艺中的设计依据、构型、膜组件和有机负荷、固体停留时间、水力停留时间等生物反应器的技术参数进行了探讨,为膜生物反应器中试设计提供了借鉴。 相似文献
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对己内酰胺生产过程废水的回用处理工艺进行了研究。以某己内酰胺化工厂的LUCAS出水作为研究对象,采用膜生物反应器和反渗透膜处理工艺,研究此系统对己内酰胺废水的处理效果。试验结果表明,膜生物反应器工艺适用于该化工厂的生产废水,出水COD平均值为31.33mg/L,平均浊度为0.2NTU,氨氮平均值为2.81mg/L,可以满足反渗透膜的进水要求。在浓缩倍数为3时,反渗透膜系统运行稳定,且产水可以满足化工部循环冷却水用再生水水质标准。 相似文献
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新型厌氧处理反应器的发展及应用 总被引:3,自引:0,他引:3
厌氧反应器是应用于污水处理的一种生物处理系统。因其运行费用低,能耗少且可产生有用副产物等优点在世界范围内得到了广泛的研究与应用。本文对厌氧反应器的由来,发展与应用进行了较系统的论述,重点介绍了新型厌氧反应器的研究与应用前景;认为目前应用的是以高速厌氧反应器为代表的工艺,但必须提高系统的稳定性,缩短系统的启动周期;同时应完善适宜于处理需高温厌氧处理的废水,低浓度有机废水以及高浓度有毒物质废水的反应器。新方法或新材料如膜技术的应用以及分级“多相”厌氧反应器可能在将来的废水处理中发挥作用。此外厌氧反应器与其他废水处理系统组成的厌氧-好氧系统,厌氧-湿地系统等综合处理系统更拓展了其应用范围。在我国这样能源短缺,资金不足的发展中, 有效又价廉的厌氧处理反应器特别适合我国国情。 相似文献
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对微网动态膜生物反应器进行了较为全面的综述,在简要介绍动态膜过滤技术的基础上,对DMBR处理生活污水的运行处理效果、生物动态膜特性、DMBR结构改进及其应用的扩展研究等方面做了介绍,分析了目前该工艺存在的生物动态膜机理研究不透彻、运行稳定性较差、对工业废水的处理研究较少等问题,展望了该工艺的研究方向,即反应器结构的改进、生物动态膜地位与功能的解析、及应器优化控制研究等。 相似文献
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本文介绍了综合医院污水治理采用的MBR工艺方法.工程核心构筑物——MBR反应器经调试试运行后,达到了预期的安全、高效的设计原则,为我国综合医院污水的治理提供了技术改造要点及可行性经验. 相似文献
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中空纤维膜生物反应器处理炼厂浮选池出水试验研究 总被引:2,自引:0,他引:2
研究设计的膜生物反应器处理炼厂浮选池出水,在每天进水容积负荷1.0 kg COD/m3,进水COD浓度600 mg/L,MLSS为900~5500 mg/L的条件下,无论活性污泥表现正常还是膨胀,过滤出水中COD均稳定地小于90 mg/L,处理效果好于目前炼油厂的合建式曝气池(容积负荷为0.5 kg COD/m3左右,出水COD100 mg/L左右)。试验运行期间,膜通量最高可达到42 L/m2·h。该工艺的技术关键是采用特殊流态来降低膜堵塞的膜生物反应器和优良质量的膜。 相似文献
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David Bolzonella Francesco Fatone Silvia di Fabio Franco Cecchi 《Journal of environmental management》2010,91(12):2424-2431
The Mediterranean Region is a semi-arid area whose land is facing serious erosion, causing adverse impacts on agriculture. To improve the water availability, researchers have proposed the reclamation and reuse of treated wastewater. In this paper, we report the main findings of 10 years of research on the efficiencies of a conventional activated sludge process and a submerged membrane bioreactor, with particular emphasis on the removal of non-conventional pollutants. The studies showed that the membrane bioreactor produced a virtually solids-free, high-quality permeate: most nutrients, heavy metals, and persistent organic pollutants were removed, and in particular, dioxins, furans, and polychlorinated biphenyls were typically present at concentrations below the detection limit. Moreover, the total coliforms count decreased by 4–5 log and Escherichia coli was absent from the membrane bioreactor permeate. These results, combined with the continuing reduction of the capital and operating costs for this approach, suggest that membrane bioreactors are an increasingly cost-effective technology to produce treated effluents that are suitable for reuse. 相似文献
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To reduce the consumption of freshwater in the laundry industry, a new trend of closing the water cycle has resulted in the reuse/recycling of water. In this study, the performance of a full-scale submerged aerobic membrane bioreactor (9 m3) used to treat/reuse industrial laundry wastewater was examined over a period of 288 days. The turbidity and total solids (TS) were reduced by 99%, and the chemical oxygen demand (COD) effluent removal efficiencies were between 70% and 99%. The levels of COD removed by the membrane were significantly greater than the levels of biodegraded COD. This enabled the bioreactor to sustain COD levels that were below 100 mg/L, even during periods of low wastewater biodegradation due to bioreactor sludge. An economic evaluation of the membrane bioreactor (MBR) system showed a savings of 1.13 € per 1 m3 of water. The payback period for this system is approximately 6 years. The energy and maintenance costs represent only 5% of the total cost of the MBR system. 相似文献
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An overview of bioreactor applications in treatment of gaseous, liquid and solid wastes is presented with emphasis on newer technologies. Waste treatment is considered in a broad context including concentration by bioaccumulation, degradation to substances with reduced environmental impact and upgrading to such useful products as feeds, foods and fuels. Biofilters and bioscrubbers for gaseous pollutants, high-rate municipal and industrial wastewater treatment in airlift bioreactors, reactor-based soil bioremediation, artificial wetland filters for liquid effluents, and protein enrichment of agricultural solid residues are some of the technologies reviewed. The various treatment strategies are illustrated with examples. The developments discussed point to an increasing role for bioreactor based processes in waste treatment and reuse. 相似文献