BAF反冲洗污泥的特性及絮凝效能

曝气生物滤池(BAF)反冲洗污泥的处理是影响其工程应用的技术难题之一，为此考察了BAF反冲洗污泥的沉降特性及絮凝性能，系统分析了其在生物一化学强化混凝处理生活污水时的效能及二次污泥的特性。研究结果表明，BAF反冲洗污泥具有较强的生物活性和絮凝活性，将其与金属盐混凝剂组合预处理生活污水时出水水质满足曝气生物滤池的进水水质要求，而且处理过程中产生的二次污泥具有较好的沉降及脱水性能。     

曝气生物滤池在上海周家渡水厂的应用

介绍了上海周家渡水厂采用曝气生物滤池（BAF）预处理黄浦江原水的生产性试验结果，包括BAF的设计参数、运行情况等。试验数据表明，采用BAF预处理工艺对原水浊度、铁、锰、氨氮、亚硝酸盐、CODMn和可同化有机碳（AOC）的去除率分别为40．9％、53．1％、36．6％、39．9％、40．1％、15．4％和54％，提高了出水水质和生物稳定性。     

接触氧化/生物过滤工艺预处理微污染高浊度源水

针对微污染高浊度源水的水质特点,采用接触氧化/生物过滤组合工艺对其进行预处理,并与传统曝气生物滤池(BAF)工艺进行对比。结果表明,接触氧化/生物过滤组合工艺对CODMn、UV254的平均去除率分别为33.3%、23.4%,优于BAF工艺的;而对亚硝态氮和氨氮的去除率分别为81.7%、82.6%,略低于BAF工艺的;对浊度的平均去除率为74.2%,比BAF工艺的高出了约30%;与无预处理工艺相比,接触氧化/生物过滤工艺可使后续混凝处理平均节省23.1%的投药量,而BAF工艺仅节省11%的投药量。     

应用曝气生物滤池工艺处理生活污水

结合曝气生物滤池（BAF）工艺处理生活污水的具体应用实例,总结了该工艺的工程特点;介绍了曝气生物滤池工艺的主要影响因素和应用实例的主要构筑物设计参数;根据其运行结果,对该工艺进行了分析和应用前景展望.     

曝气生物滤池中填料的研究进展

曝气生物滤池（BAF）是一种新兴的污水处理工艺,填料是曝气生物滤池的核心元素,填料的选择是滤池设计和影响出水水质的关键因素。综述了近几年来填料在国内外的研究现状和进展,并展望了其在今后的研究方向。     

曝气生物滤池工艺装备的国产化及工程实践总结

曝气生物滤池(BAF)是在克服了传统生物滤池有机负荷低、易堵塞等一系列缺点后,发展起来的新型生物膜工艺.在引进、吸收、消化BAF工艺的基础上,作了一系列改进和优化,例如用斜板平流沉淀池代替3D池,将二级串联曝气改为一级并联曝气运行,对配水方式、布气方式、滤板尺寸及连接方式进行优化调整,改液氯消毒为紫外线消毒等,使其更符合我国国情、更便于推广.     

曝气生物滤池在含油废水处理中的应用

介绍了采用曝气生物滤池（BAF）工艺处理含油废水的工程实例。运行结果表明：对废水进行预处理后，进入BAF的废水中石油类及SS含量很低，对COD及NH3-N的去除率均可达94％以上，最终出水水质可达到广东省地方标准《水污染物排放限值》（DB44／26-2001）第二时段的一级标准。该工艺具有占地面积小、运行稳定、出水水质好等优点。     

小区中水回用工程实例

介绍了曝气生物滤池(BAF)过滤工艺在辽宁某住宅小区中水回用工程中的运用。具体介绍了工程水质及水量的设计、工艺流程及工艺参数,分析了其运行情况,并对曝气生物滤池运行中有关问题进行了总结,最后对其应用前景作了展望。     

曝气生物滤池应用和研究中的几个关键问题

曝气生物滤池(BAF)由于处理能力强、抗冲击负荷和生物降解过程独特而受到青睐.分析了BAF应用中的几个关键问题,诸如技术原理、运行原则、适用填料、反冲洗工艺等,还特别综述了有关BAF生物相特征及其动力学模型方面的研究现状.     

BAF在废水提标改造及深度处理中的研究与应用

介绍了曝气生物滤池(BAF)的工艺特点、运行影响因素,总结了BAF在市政以及印染、石化、焦化等工业废水深度处理中的研究与应用现状,并就其研究和应用的前景进行了展望。     

生态城市与生态规划

城市生态建设需要遵循并拥有一个生态城市的健康、安全稳定系统，这个系统不是孤立单纯的人造系统，不是通过以人的主观意愿编造出来的。城市生态应该是依据自然规律和人类行为规范形成和谐的共生系统。建构城市生态共生系统涉及到自然生态系统和社会生态系统的科学协调与组织平衡的关系问题．涉及到自然系统资源的科学合理组织与分配，涉及到人类计划与管理行为的科学性、     

BICT工艺中厌氧生物选择器的作用

研究了双循环两相生物处理(BICT)工艺中厌氧生物选择器的停留时间、污泥浓度和碳磷比等运行参数对选择器厌氧释磷的影响。结果表明,系统通过污泥转移保持厌氧生物选择器中较高的污泥浓度,从而提高了污泥的释磷水平、强化了系统的除磷能力。当厌氧生物选择器的停留时间为1 h、系统泥龄为5 d时,厌氧生物选择器的释磷效果最优。此外,运行过程中污泥的沉降性能良好,SVI值一直保持在80~120 mL/g。     

生物滤池中生物量与生物活性分析及其净水效果

通过平板计数法(HPC)、脂磷法(Lipid-P)和脱氢酶法(TTC-DHA)对4种生物滤池中生物量和生物活性的空间分布进行分析,并结合出水水质考察各生物滤池的净水效果.结果表明,4种生物滤池中的生物量(HPC、Lipid-P)呈显著的成层分布,并随滤层深度的增加而降低;在同一滤层高度,球状活性炭滤料的HPC和Lipid-P生物量均高于柱状活性炭滤料的;4种生物滤池的HPC和Lipid-P生物量均与脱氢酶生物活性有较好的相关性(R2>0.706).球状活性炭生物滤池和强化球状活性炭生物滤池中的标准化生物活性(单位生物量的生物活性)随滤层深度的增加而增加,且球状活性炭生物滤池的净水效果优于柱状活性炭生物滤池的.因此,使用活性炭作为生物滤池的滤料时应合理选择炭型.     

内循环生物流化床水力及生物硝化特性研究

采用一种新型轻质多孔性载体,研究了内循环生物流化床的水力特性。结果表明,在降流区接近于推流式,而升流区接近于完全混合式,整个反应器可以模拟为一个推流式和一个完全混合式的串联。随着下向流速增加,膨胀率和回流比呈正比增加。     

Biological toilet systems

It is not only developing countries that are interested in latrines which can function hygienically where no piped water is available. Even in parts of Scandinavia, for example, there are very remote areas which require toilets that do not use water for disposal, and some of the installations are fairly sophisticated. The author, who works in the Microbiology Department of the Agricultural University of Norway, has made a special study of non-water-borne toilet systems, including ground and pit latrines. Here, however, we present his concise guide to an aspect of the subject of potentially wide general significance, namely toilet systems which rely on biological action.     

Parallel Biological Futures

Neil Spiller looks beyond the digital and envisions a surreal future of ‘biological parallelism’ that pushes the boundary of architecture deep into the natural sciences, potentially creating ‘huge rafts of new architectural flora and fauna’. Copyright © 2009 John Wiley & Sons, Ltd.     

生物污泥的电渗透脱水

介绍了生物污泥电渗透脱水的原理、发展状况以及发达国家较成熟的技术和设备，分析了污泥电渗透脱水中存在的问题，简述了其解决方法，并对其发展前景作了展望。     

Biological activation of carbon filters

To prepare biological activated carbon (BAC), raw surface water was circulated through granular activated carbon (GAC) beds. Biological activity of carbon filters was initiated after about 6 months of filter operation and was confirmed by two methods: measurement of the amount of biomass attached to the carbon and by the fluorescein diacetate (FDA) test. The effect of carbon pre-washing on WG-12 carbon properties was also studied. For this purpose, the nitrogen adsorption isotherms at 77K and Fourier transform-infrared (FT-IR) spectra analyses were performed. Moreover, iodine number, decolorizing power and adsorption properties of carbon in relation to phenol were studied. Analysis of the results revealed that after WG-12 carbon pre-washing its BET surface increased a little, the pH value of the carbon water extract decreased from 11.0 to 9.4, decolorizing power remained at the same level, and the iodine number and phenol adsorption rate increased. In preliminary studies of the ozonation-biofiltration process, a model phenol solution with concentration of approximately 10mg/l was applied. During the ozonation process a dose of 1.64 mg O(3)/mg TOC (total organic carbon) was employed and the contact time was 5 min. Four empty bed contact times (EBCTs) in the range of 2.4-24.0 min were used in the biofiltration experiment. The effectiveness of purification was measured by the following parameters: chemical oxygen demand (COD(Mn)), TOC, phenol concentration and UV(254)-absorbance. The parameters were found to decrease with EBCT.     

Biological treatability of dairy wastewaters

Biological treatability of an integrated dairy plant wastewater containing a small fraction of whey-washwaters mixture has been experimentally investigated. Emphasis has been placed on the assessment of the initially inert fraction, S₁ and soluble residual microbial products, S_p. Parallel batch experiments have been conducted to determine the kinetic and stoichiometric coefficients of the degradable COD. The results have shown that the wastewater tested had practically no initially inert fraction, but generated residual microbial products amounting to 6–7% of the initial degradable COD. The results obtained have been fed into a set of equations describing the steady state operation of an activated sludge system with sludge recycle and a relationship indicating the variation of the total effluent COD with the sludge age has been defined for the wastewater tested. It is noted that effluent COD cannot be biologically reduced below 85 mg l⁻¹, regardless of the sludge age, due to generation of residual fractions.     

生物洁净室的设计特点

从微粒的去除机理，值班系统设计，消毒灭菌系统设计着手介绍生物洁净室的设计特点，简述各行业生物洁净室的设计要求，强调生物洁净室防止交叉污染的重要性。