共查询到20条相似文献,搜索用时 109 毫秒
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一体化IMBR处理低碳城市污水的脱氮研究 总被引:1,自引:0,他引:1
在进水C/N为3、4、5和HRT为4、8、12h的条件下,研究了一体化间歇曝气膜生物反应器(IMBR)对COD、NH4^+-N、TN的去除效果。研究表明,在低C/N条件下,IMBR仍有很好的脱氮效果,出水COD、TN、NH4^+-N达到了GB18918--2002标准的一级A标准;随着C/N的增加则对各污染物的去除率都有所升高;随着HRT的延长,IMBR对COD、TN、NH4^+-N的去除率有较大的提高,但当HRT〉8h后,随着HRT的延长,对COD的去除率反而略有下降。 相似文献
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笔者结合多年工作经验选用以(ABFT)生物曝气流化池为核心技术、以化学物理为辅助方法的工业化技术,对高氨氮污水进行有效处理。经过处理显示结果:在废水外排项目监测中其BOD、挥发酚、氰化物、悬浮物、硫化物、氨氮、pH值、石油类、COD的平均浓度含量均低于综合排放污水标准,即(GB7889-1996)规范规定的一级标准,在规范中:氨氮含量为O.52mg/L,COD含量为82.78mg/L。对氨氮、硫化物、悬浮物、COD、挥发酚等的消除率高达95%以上,BOD与石油类的消除率也能达到70%以上,因而获得理想的效果。 相似文献
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采用有效容积为18.55m^3的复合式厌氧反应器(AHR)处理低温、低浓度城市合流制污水,中试结果表明,在水温为9.5~12℃、水力停留时间为3.9h的条件下,对SS和COD的去除率分别达到了84.5%和36.13%;经处理后溶解性COD占总COD的比例由进水的49.69%提高到出水的73.08%,可生化性得到了明显改善;在COD/SO4^2-值为1.60即SO4^2-充足的情况下,硫酸盐还原菌(SRB)较产甲烷菌(MPB)占优势,对SO4^2-的去除率高达73.26%。可见,采用AHR预处理低温城市合流制污水是可行的。 相似文献
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Jori Erdman Robert Weddle Thomas Mical Jeffery S. Poss Kevin Hinders Ken McCown Chris Taylor 《Journal of Architectural Education》2002,55(3):174-179
Design-build has been receiving much attention from both the profession and academia in recent years. However, there seems to be many differences in the way that the term is interpreted and applied. This paper reflects upon the results of a conference entitled "Designing/Building/Learning" that sought to explore the issues surrounding this topic through paper sessions, workshops, keynote addresses, and panel discussions. Hands-on approaches to pedagogy in the form of full-scale construction exercises have emerged in schools across the country, but these activities continue to resist theorizing. The Designing/Building/Learning Conference demonstrates this resistance, as well as the compelling role of design-build in education. 相似文献
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Nigel Coates 《Architectural Design》2006,76(6):44-49
‘Fabric is the perfect mediator between the firm and the flowing.’ Nigel Coates celebrates the textile's rediscovery as a metaphor for the architectural envelope, liberating it from its reputation as having only a supporting, ‘comfort role’ in the interior. He describes his own experiments with textiles at Branson Coates Architecture and the Royal College of Art (RCA), in which they alternately become skin, weave and pattern operating at every scale from the individual body to the urban plan. Copyright © 2006 John Wiley & Sons, Ltd. 相似文献
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Stefano Rabolli Pansera 《新建筑》2008,(1)
AA第5单元媒介课的任务是设计一个地处伦敦的旅馆,并且用电影预告片作为主要设计的工具.我们相信在通过影像来提炼虚拟场景的过程中.可以产生建筑思维.这些景象并不仅仅关注空间的物质实体,而且包含着与行为有关系的特定空间环境的情节.为了解读所有这些传统建筑讨论中(大多只是平面一立面一模型的联系)常被忽略的空间维度.电影媒介是一个理想的工具.在不同种类的电影表现方式中.我们选择了"预告片".预告片并不讲述电影本身,而是通过激起电影的氛围来诱惑观众.制作一个预告片描述一个还不存在的旅馆,我们打算通过激发氛围、暗示可能的场景等这些超越传统建筑设计过程的做法,得到一个非常复杂的空间. 相似文献
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While attention was riveted on the results of an international design competition for a site over the 34th Street rail yards west of Pennsylvannia Railroad Station, another study was taking place. Working with the community, local multidisciplinary design teams explored an adjacent site through a different process. This process, and its findings, are illuminating. 相似文献
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采用絮凝沉淀/IC/水解酸化/CASS法处理高浓度制药废水,工程设计规模为830m3/h,该废水具有水量不稳定、氨氮浓度较高、有机物浓度高、生物毒性大等特点。该工程自2012年3月投产至今处理效果稳定,各项出水指标均达到《污水综合排放标准》(GB 8978—1996)的二级标准。 相似文献