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抗生素制药废水的处理 总被引：1，自引：0，他引：1
王强 《辽宁城乡环境科技》2006,26(3):49-51
锦州九泰制药废水属于不易生化类废水，废水量1000m^3/d，污水站总投资140万元。本文阐述了该工程的水质、预处理、生化处理工艺、活性污泥的培养与驯化及运行效果与设计特点。 相似文献
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层燃—流化床焚烧城市垃圾技术 总被引：1，自引：0，他引：1
首次提出的层燃－流化床燃烧技术是适合我国国情的城市垃圾处理技术，可使预处理过程达到最简化并保证燃烧过程的稳定必和彻底性，给出了层燃－流化床双床焚烧炉的结构和工作原理。 相似文献
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Comparisons of microbial community structure, in eight filter media of zeolites, anthracite, shale, vermiculite, ceramic filter media,gravel, steel slag and bio-ceramic, were undertaken by analyzing the phospholipid fatty acid (PLFA) composition. A total of 20 fattyacids in the range of C11 to C20 were determined but only 13 PLFAs were detected in steel slag. They consist of saturated fatty acids,branched fatty acids, monounsaturated fatty acids, and polyunsaturated fatty acids. The variation of fatty acids was revealed in therelative proportions of these fatty acids in di erent media. The aerobic prokaryotes were the predominant group in all media. ThePLFA composition showed significant di erences among the eight di erent media by Tukey’s honestly test. It was found that steel slagwas significantly di erent in the microbial community as compared to other filter media, probably due to its alkaline e uent. Steelslag alone is probably not a good choice of substratum in constructed wetlands. The principle components analysis (PCA) showed thatzeolites, bio-ceramic, shale and vermiculite had a similar microbial community structure while steel slag and ceramic filter media weredistinct from other media. 相似文献
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Air pollution has a serious fallout on human health, and the influences of the different urban morphological characteristics on air pollutants cannot be ignored. In this study, the relationship between urban morphology and air quality (wind speed, CO, and PM2.5) in residential neighborhoods at the meso-microscale was investigated. The changes in the microclimate and pollutant diffusion distribution in the neighborhood under diverse weather conditions were simulated by Computational Fluid Dynamics (CFD). This study identified five key urban morphological parameters (Building Density, Average Building Height, Standard Deviation of Building Height, Mean Building Volume, and Degree of Enclosure) which significantly impacted the diffusion and distribution of pollutants in the neighborhood. The findings of this study suggested that three specific strategies (e.g. volume of a single building should be reduced, DE should be increased) and one comprehensive strategy (the width and height of the single building should be reduced while the number of single buildings should be increased) could be illustrated as an optimized approach of urban planning to relief the air pollution. The result of the combined effects could provide a reference for mitigating air pollution in sustainable urban environments. 相似文献
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在空气阴极生物燃料电池(ACMFC)中,从阴极扩散进入阳极的氧气能够被兼性微生物作为电子受体还原,进而导致电子损失严重.本研究利用葡萄糖作底物,对2种不同电极构型的空气阴极生物燃料电池ACMFC1和ACMFC2的功率输出和电子回收进行了比较研究.结果表明,ACMFC1的内阻为302.14Ω,阳极电位为-323mV,最大功率密度为3 070 mW/m3;ACMFC2的内阻为107.79Ω,阳极电位为-442mV,最大功率密度达到9 800 mW/m3.在间歇条件下,ACMFC2可以连续运行220h,电子回收率为30.1%;而ACMFC1只能运行不到50h,电子回收率为9.78%.因此,合理的设计空气阴极生物燃料电池电极构型可以减小内阻,增大电池电动势进而增大功率输出,提高电子回收率. 相似文献
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