共查询到17条相似文献,搜索用时 31 毫秒
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利用水泥窑协同处置危险废物技术,是一种有效、经济的危废处置方式,具有减量化、无害化、资源化等特点。浆渣系统和废液系统是水泥窑协同处置的两种典型技术路线,传统的处置方式是将浆渣直接入分解炉、废液直接入窑头处置,这样通常会引起水泥窑工况波动从而造成处置量偏低。本文主要从浆渣系统和废液系统常规处置路线的缺点进行分析,通过引进热盘炉技术对浆渣系统进行改造,提高浆渣系统的处置量;在此基础上,结合蠕动泵对废液系统处置路线进行改造,将传统工艺无法处置的废液泵送至热盘炉内,从而实现废液处置量的提升。 相似文献
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我国是一个人口大国,与此同时我国也是一个生活垃圾产生量非常大的一个国家。根据有关的统计数据,我国每年的垃圾总量已经达到了2.5亿吨。同时城市垃圾的处理属于国际范围的难题,目前我国城市垃圾的处理仍以填埋为主,这种处理方式是非常不科学的。近年来,很多学者对水泥窑协同处置生活垃圾项目作了研究和探讨,发现利用水泥窑协同处理城市垃圾,在减量化、资源化、无害化等多个方面的优势明显。本文主要对水泥窑协同处置垃圾进行了探讨。 相似文献
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介绍了苏州东吴水泥有限公司日产2 500 t/d熟料新型干法水泥生产线对水泥窑协同处置固体废弃物技术的应用,阐述了该项目的技术方案、生产工艺流程等,从应用效益等方面进行系统分析,提出了在实际运行过程中应注意的事项及解决措施。 相似文献
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介绍了南京中联水泥有限公司日产4 500 t/d熟料生产线协同处置危险废弃物技术的应用,重点介绍了该项目的技术方案、生产工艺流程以及处置过程中对水泥窑系统的影响以及安全环保分析,从实际出发,提出了在实际运营过程中的注意事项和解决措施. 相似文献
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结合金隅集团水泥企业的实际情况和需求阐述水泥窑大批量协同处置生活垃圾技术可行性研究及成果。该项技术的创新点是采用高热值可燃筛上物直接入分解炉和低热值筛上物热解气体入分解炉的组合路线,提高协同处置生活垃圾量;在大批量协同处置生活垃圾的同时,对水泥窑系统烟气平衡影响小,对分解炉内煤粉燃烧、传热和碳酸盐分解影响小,对水泥窑操作均衡稳定影响小。目前该技术原生垃圾的处理量可望达到0.25~0.40t/t熟料,燃料替代率达到29%~49%。热解灰渣、旁路放风系统的窑灰等都可以作水泥混合材料和其它建材产品原料。环境效益和社会效益显著。 相似文献
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R. H. LITTLE BSc MSc H. A. GROGAN BSc PhD ARCS G. M. SMITH BSc ARCS MSRP C. TORRES 《Water and Environment Journal》1993,7(4):354-362
This paper compares the land-based disposal of municipal and hazardous waste in Europe and North America, and the various disposal options are examined for each type of waste. It is concluded that landfill is still the most widely practised disposal method for most wastes in both continents. Other methods include composting, land farming, trenching/spraying, and deep underground disposal. More stringent controls on waste disposal are being introduced and a trend to seek greater uniformity of practice and standards is developing. However, local conditions, such as the nature of the wastes and the availability and nature of disposal sites, continue to work against this trend. There is no single method which is suitable for all wastes and for all conditions. The best environmental option for waste management will vary from place to place and waste to waste, therefore an imposed uniformity of practice is not in the best environmental interest. 相似文献
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通过水泥窑协同处置固废物水泥熟料及水泥重金属含量风险预警监测,从检测数据分析了熟料及水泥可浸出重金属超标的根本原因,并提出相应的预防和控制措施。 相似文献
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P. H. JONES BASc MS PhD FIE CPEng S. HERAT BSc MEngSc CEng MICE MIE 《Water and Environment Journal》1994,8(2):165-170
The use of cement kilns for managing solid and hazardous wastes is facilitated by the high temperature, long gas retention periods, natural alkaline environment, minimum amount of waste produced and high thermal capacity. The main benefits include energy recovery, conservation of fossil fuels, reduction in cement production costs and the use of already existing facilities.
The test burns conducted in cement kilns worldwide have demonstrated very high destruction efficiencies for most stable organic compounds, with toxic contaminants barely above the background levels.
There are several cement plants in the US and Europe presently using solid and hazardous wastes as supplementary fuel. The application of this technology in Australia has been ignored in the past. An international conference (Kilnburn'92) on the role of cement kilns in waste management was held recently in Australia and has enhanced the implementation of this technology in Australia. 相似文献
The test burns conducted in cement kilns worldwide have demonstrated very high destruction efficiencies for most stable organic compounds, with toxic contaminants barely above the background levels.
There are several cement plants in the US and Europe presently using solid and hazardous wastes as supplementary fuel. The application of this technology in Australia has been ignored in the past. An international conference (Kilnburn'92) on the role of cement kilns in waste management was held recently in Australia and has enhanced the implementation of this technology in Australia. 相似文献
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介绍了某水泥窑低温余热发电工程的项目概况和系统组成,对该项目的设计难点进行了阐述,并对其经济效益进行了分析,结果表明水泥窑低温余热发电技术既可提高企业效益,又能起到节能减排的作用,具有广阔的发展前景. 相似文献
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Anup Gurung Sang‐Hun Kim Jin Ho Joo Min Jang Sang‐Eun Oh 《Water and Environment Journal》2012,26(2):224-234
In this study, the qualities of the final effluents from nine different industries (A, B, C, D, E, F, G, H and I) discharging 1,4‐dioxane mainly as effluents were assessed using sulphur‐oxidising bacteria (SOB) as a test micro‐organism in batch mode. Results showed that effluent from industry ‘B’ was the most toxic of all the effluents tested, followed by E, C and A effluents. An EC50 value of 13% was obtained for effluent from B, whereas with E, C and A effluents, the EC50 values of 23%, 25% and 29% were found, respectively. Similarly, batch tests were performed in order to evaluate the potential for 1,4‐dioxane to inhibit growth on SOB. The lowest test concentration of 1,4‐dioxane (12 μg/L) resulted in 17% of inhibition of SOB, whereas the highest test concentration (3.125 mg/L) resulted in > 75% of the inhibition. An EC50 value of 0.105 mg/L was obtained for 1,4‐dioxane. 相似文献