共查询到20条相似文献,搜索用时 15 毫秒
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SBR工艺的现状与发展 总被引:22,自引:2,他引:22
序批式间歇活性污泥法(SBR)是近年来应用日趋广泛的一种污水处理工艺,在SBR工艺的基础上,又发展了一些SBR的变型工艺,例如ICEAS工艺、CASS工艺、UNITANK工艺、ASBR工艺、BSBR工艺等。今后应加强SBR工艺中微生物的研究和可靠的工程设计模式的探讨。 相似文献
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在分析间歇式超临界水氧化反应装置常见操作方式的基础上,以节省设备固定投资、便易实验过程数据采集为目的,改进了间歇式超临界水氧化反应装置,设计的间歇装置能够通过双阀采样系统实现反应过程中的微量采样,且一台高压泵实现向反应釜加液、充气的功能。改进的间歇式装置降低了设备的固定投资,减小了实验成本。 相似文献
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SBBR反应器填料比选研究 总被引:1,自引:0,他引:1
在序批式生物膜反应器(SBBR)中加入不同类型填料进行平行试验,考察各类填料的挂膜效果及生物处理能力,比选出最佳填料以优化反应器性能。试验结果表明投加了悬浮球的SBBR池在挂膜、水质净化、以及耐水量和耐水质冲击方面表1现出了优良的能力。在进水水温为15℃~22℃,pH值6.5~7.2,曝气气水体积比(9~10):1,进水COD值402~792mg/L,进水NH4+-N值50.5~97.4mg/L时,该反应器对水中COD、NH4+-N的平均去除率分别为87.9%、79.4%。 相似文献
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Michele Mascia Annalisa Vacca Anna Maria Polcaro Simonetta Palmas Anna Da Pozzo 《Journal of chemical technology and biotechnology (Oxford, Oxfordshire : 1986)》2011,86(1):128-137
BACKGROUND: Benzene, toluene, ethylbenzene, xylene (BTEX) and oxy‐fuels such as methyl tert‐butyl ether (MTBE) are typical contaminants of ground waters. Biological and physical techniques are often ineffective in removing these compounds, while promising results were obtained with advanced oxidation processes (AOPs), which are based on oxidation by hydroxyl radicals. Electrochemical oxidation with boron doped diamond (BDD) anodes occurs by OH radicals generated from water oxidation, so that it may be considered as an alternative to other AOPs. RESULTS: An experimental study on the electrochemical removal of MTBE and BTEX with BDD anodes from water with low organic concentrations and low conductivity is presented. The kinetics of the process was investigated by batch electrolyses: the removal of MTBE and benzene was controlled by the mass transfer towards the anode, while a further reaction bulk contribution was found for alkylbenzenes. The process was tested in continuous mode and the energy consumption was evaluated and compared with other AOPs. CONCLUSIONS: Removal of the pollutants higher than 95% was achieved under all the examined conditions, confirming the effectiveness of the process. The proposed electrochemical treatment was comparable with other AOPs in terms of energy consumption, and it can be considered as an alternative to other processes for ground water treatment. Copyright © 2010 Society of Chemical Industry 相似文献
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厌氧生物处理新工艺——厌氧序批式反应器 总被引:6,自引:0,他引:6
形成颗粒污泥和可以在常温下处理低浓度废水是厌氧序批式反应器的两个基本特征。文中讨论了厌氧序批式反应器(ASBR)的进水时间与反应时间之比、碱度和温度对ASBR运行的影响以及ASBR一个运行周期中各时间段的确定。 相似文献
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废水处理光催化反应器的发展 总被引:2,自引:0,他引:2
光催化是一项很有前途的水处理技术,光催化反应器是影响光催化反应效率的重要因素之一。作者对影响光催化反应器效率的因素如光源种类、反应器结构、催化剂状态等进行了分析,并总结了近年来在国内外研制及应用的一些典型的光催化反应器.给出了其结构图.并对其优缺点进行了评价。 相似文献
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Fabio Terzi Chiara Zanardi Sergio Daolio Monica Fabrizio Renato Seeber 《Electrochimica acta》2011,(10):3673
Different Au/Pt bimetallic systems have been synthesised by following the approach suggested by Brust. The nanoparticles have been anchored to glassy carbon surface through a place-exchange reaction involving dithiol molecules. The resulting modified electrode consists of heterogeneous nanostructured Au and Pt patchwork. The different nanoparticles systems developed have been employed for the electroxidation of methanol and carbon monoxide in alkaline aqueous media. The results show that the electrocatalytic activity of the bimetallic systems is enhanced with respect to the single monometallic NP systems. 相似文献