生物过滤塔处理工业有机废气

选用生物载体作为反应器的填料,并利用沈阳北部污水处理厂的活性污泥对填料进行挂膜,由低到高通入工业有机气体进行驯化。在系统稳定后进行了生物过滤塔净化工业有机气体的实验研究。实验结果表明:入口气体浓度<25mg/m3时,有机废气的净化效率可保持在97%以上,当超过此值时,效率有明显下降。随着进口气体流量的增加,净化率逐渐下降,由入口流量为0.2m3/h时的97.2%下降到入口流量为0.8m3/h时的73.0%。湿度对净化率的影响较大,其中当湿度达到40%以上时,反应器有良好的去除效果。生物过滤塔的压降随着气体流量和填料高度的增加而增加。     

上海市雨水污染控制初探

水环境的严重污染和饮用水资源的匮乏，已对上海市的持续发展构成了直接和潜在威胁。在借鉴国外雨水处理利用的研究，应用成果，综合考虑上海市水环境，城市建设及经济发展现状和地区特点的基础上，对上海地区城市雨水污染及其特性，控制雨水污染措施等作了阐述。     

Comparative study of microbial community structure in di erent filter media of constructed wetland

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 fatty acids 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 the relative proportions of these fatty acids in di erent media. The aerobic prokaryotes were the predominant group in all media. The PLFA composition showed significant di erences among the eight di erent media by Tukey’s honestly test. It was found that steel slag was significantly di erent in the microbial community as compared to other filter media, probably due to its alkaline e uent. Steel slag alone is probably not a good choice of substratum in constructed wetlands. The principle components analysis (PCA) showed that zeolites, bio-ceramic, shale and vermiculite had a similar microbial community structure while steel slag and ceramic filter media were distinct from other media.     

电渗透加压脱水机

日本神钢ハニテツタ开发的电渗透式加压脱水机，是在加压脱水机内装入电极．用电能来帮助污泥粒子移动．可防止污泥阻塞过滤膜，使污泥脱水能力大大提高。选种脱水机每日可处理113700m^3水量．而过滤面积只有普通加压脱水机的1/2以下。     

纸质褶裙式滤清器及其应用

高强芳粉尘滤纸构成的褶裙式滤清器用于工业防尘和空气净化装置。它与常规的静电除尘器、袋式除尘器相比,具有占地面积小、投资省、过滤流量大、使用面广、维护简便等优点,是一种新型的空气滤清设备。     

微孔过滤处理含镉废水

镉颜料有镉黄、镉红等品种,在玻璃、搪瓷、涂料等行业中用作着色剂。生产过程中排放的半成品、成品漂洗水为含镉废水,污染物为镉的化合物(硫化镉、硒化镉、硫酸镉)及硫化物。废水排放不连续,水质不稳定,浓度变化大,呈碱性,外观为桔红或     

生物过滤系统处理恶臭技术

介绍了可生物降解的恶臭气体种类、来源，生物过滤系统的历史与研究现状，生物过滤系统的设计与运行操作，填料的开发与选择。生物过滤系统是处理恶息的有效工艺，在我国有广泛的应用前景。     

混凝沉淀—过滤工艺处理碳化硅生产废水

根据碳化硅生产废水特点，选择采用“混凝沉淀-过滤”工艺运行结果表明：在原水COD101.6mg/l,SS1457.4mg/l的条件下，其去除率分别为36.0%,98.6%。     

快滤池处理含油污水的应用

马岭炼油厂原污水处理效果较差，达不到外排要求，增设快滤池处理污水后，投运良好，污水进行了回用。