共查询到19条相似文献,搜索用时 109 毫秒
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文章主要介绍了氧化沟工艺的优化设计,对改良型卡罗塞尔(Carrousel)氧化沟的池型、工艺参数、核心设备进行了选型优化,并结合实例对改良型氧化沟技术的应用进行了较为全面的论述。 相似文献
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《中国环保产业》2011,(6):70-70
由北京桑德环境工程有限公司开发的改良型氧化沟污水处理技术,适用于市政污水处理。主要技术内容一、基本原理Carrousel 2000型氧化沟在沟体内存在缺氧区和好氧区,但不能很好地满足缺氧区要求的充足碳源和缺氧条件,因此,脱氮效果不是很好,同时无法去除污水中的磷。改良型氧化沟是在Carrousel 2000型氧化沟的基础上发展起来的,在Carrousel 2000型氧化沟前置厌氧段,污水经厌氧、缺氧、好氧交替运行,可以达到同时去除有机物、脱氮和除磷的目的,而且在这种交替运行状况下,丝状菌不宜生长繁殖,因此改良型Carrousel 2000氧化沟基本不存在污泥膨胀问题。 相似文献
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对两个采用不同T型氧化沟工艺的城市污水处理厂的工艺、除磷脱氮的效果进行了分析,提出T型氧化沟工艺在大型城市污水处理厂仍有良好的应用前景。 相似文献
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深圳市金达莱环保股份有限公司 《中国环保产业》2009,(11):13-15
目前,我国城镇污水处理多以氧化沟、A/O、A^2/O、CASS等工艺为主,但这些工艺普遍存在处理效率低、占地面积大、有机剩余污泥产量大、污水处理难以实现同步回用等问题。 相似文献
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枣庄市污水处理厂正在加快建设步伐,一些新技术、新工艺得到了广泛应用,包括:氧化沟技术、AB生物处理技术、ICEAS工艺技术、OCO工艺技术和A/O技术。同时,也存在运行机制不顺、建设滞后、部分工业企业污水不能达标排放、运行费用偏高、运行费用严重不足等问题。因此,应采取一系列措施,如:对污水处理厂进行企业化改制,强化城市污水回用技术方面的研究,针对不同地区工业废水特点进行工艺优选,加大污水排污费征收等。 相似文献
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F. Douglas Shields 《Journal of the American Water Resources Association》1982,18(5):779-784
ABSTRACT: The environmental effects of flood control channel modifications such as clearing and snagging, straightening, enlargement, and/or paving can be quite severe in some cases. Information review reveals that several environmental features have been incorporated into the design, construction, operation, or maintenance of recent flood control channel projects to avoid adverse environmental impacts and enhance environmental quality. Typically, these features have been proposed by conservation agencies and designed with minimal quantitative analysis. Environmental features for channel projects include selective clearing and snagging techniques, channel designs with nonuniform geometry such as single bank modification and floodways, restoration and enhancement of aquatic habitat, improved techniques for placement of excavated material, and revegetation. 相似文献
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曝气生物滤池在石化污水处理工程中的应用 总被引:1,自引:0,他引:1
曝气生物滤池可以用于石化污水的二段生化处理,是一种运行可靠、自动化程度高、出水水质好和抗冲击能力强的好氧生物处理新工艺。它与活性污泥法工艺相比,对于低基质污水二段生化工况,其有机物容积负荷高,污水停留时间短,其后不须设置二次沉淀池。与普通生物滤池相比,其占地面积小,不宜堵塞。与生物接触氧化方法相比,生物活性较高,处理效果好。曝气生物滤池集曝气池、二次沉淀池和滤池的功能于一身,其出水水质指标可以完全达到《污水综合排放标准》(GB8978-1996)一级标准。 相似文献
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本文对某印染工业园区的混合废水处理装置开展了连续两年的运行调查,并对其进行了完善和提标改造的技术探讨。研究表明,污水处理装置的出水氨氮、总磷达标,BOD5、色度接近排放标准,而CODCr、SS难以达到一级排放要求。在现有工艺流程条件下对出水进行砂滤和二氧化氯强氧化能够保证出水达到一级A排放标准。 相似文献
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阳离子染料废水处理的工艺研究 总被引:6,自引:0,他引:6
首先采用两级物化-电解-吸附工艺对高浓度阳离子染料生产废水进行预处理,再与低浓度生产废水、生活污水混合生化处理,总脱色率和CODcr去除率均可达到99.9%以上,达标排放。 相似文献
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Peggy A. Johnson Eric R. Brown 《Journal of the American Water Resources Association》2001,37(5):1225-1236
ABSTRACT: The designs of stream channel naturalization, rehabilitation, and restoration projects are inherently fraught with uncertainty. Although a systematic approach to design can be described, the likelihood of success or failure of the design is unknown due to uncertainties within the design and implementation process. In this paper, a method for incorporating uncertainty in decision‐making during the design phase is presented that uses a decision analysis method known as Failure Modes and Effects Analysis (FMEA). The approach is applied to a channel rehabilitation project in north‐central Pennsylvania. FMEA considers risk in terms of the likelihood of a component failure, the consequences of failure, and the level of difficulty required to detect failure. Ratings developed as part of the FMEA can provide justification for decision making in determining design components that require particular attention to prevent failure of the project and the appropriate compensating actions to be taken. 相似文献
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ABSTRACT. This research examines the impact of high rates of interest upon the least cost system design for urban drainage systems when water quality is a critical parameter. Results of examination of twelve alternative system designs in a case study watershed indicate the least cost study design is highly sensitive to the rate of interest, but not sensitive to the water quality parameters. When the high rates of interest currently prevalent are introduced into the model those systems which contain open channel collection components are selected as the least cost system. At low rates of interest pipeline collection components are selected as the least cost system. Holding pond components of system design are cost effective at several levels of water quality. They are neutral to the rate of interest so they are incorporated in least cost systems at all the levels of interest rates. The results of the study indicate that at the current high rates of interest open channel collection systems and holding ponds are cost effective system components to achieve selected levels of water quality in urban drainage system design. 相似文献