共查询到20条相似文献,搜索用时 312 毫秒
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硝基苯生产废水处理技术进展 总被引:12,自引:0,他引:12
介绍了硝基苯废水的主要处理方法——化学氧化法、生物降解法和物理法,综述了近年来国内外对这3种处理方法的研究进展,指出目前尚未出现具有显著经济和环境优势的处理方法,同时还指出硝基苯废水处理技术近期的进展可能将更多地取决于现有处理技术的综合应用。 相似文献
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超临界水氧化法处理有机污染物 总被引:13,自引:1,他引:13
介绍了超临界水氧化法处理有机污染物的基本原理,工艺流程和应用实例及使用范围,对比分析了超临界水氧化法与焚烧法处理有机污染物的技术特点,经济实用性,指明了超临界水氧化法作为一种有效的有机污染物处理方法,在化工环保等领域将具有广阔的应用前景。 相似文献
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改进的电解—气浮法处理印染废水 总被引:4,自引:1,他引:3
对电解-气浮法所用的高压脉冲电源、电解槽、气浮池进行了改造,并设计建成了电解-气浮装置用于处理某棉织厂的印染废水,处理效果良好,废水色度、COD和硫化物的去除率分别达到94%、81%和98%。处理后排水可回用于生产,有较好的推广应用价值。 相似文献
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电镀污泥处理技术的研究进展 总被引:10,自引:1,他引:10
电镀污泥中含有大量的铬、镉、镍、锌等重金属,是一种典型的危险废物。综述了近年来国内外对电镀污泥处理技术的研究进展,包括固化/稳定化技术、热化学处理技术、有价金属回收技术和材料化技术等。对主要处理技术的应用前景进行了分析,认为热化学处理技术将成为未来电镀污泥处理领域内的一个重要研究方向。 相似文献
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针对造纸法再造烟叶生产废水COD波动大、废水处理系统运行不稳定等问题,对造纸法再造烟叶的生产废水排放及不同种类废水的水质特点进行了分析。在废水处理系统运行检测数据的基础上,采用数理统计方法研究了废水COD与pH的关系。结果表明:COD与pH呈高度显著的线性关系;用得到的回归方程COD=-2 913pH+22 059对废水COD进行验证和预测,相对偏差在15%以内。本研究为造纸法再造烟叶废水处理系统的运行提供了一种快捷的COD预测方法,有助于提高废水处理系统的处理效率和运行稳定性。 相似文献
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The aim of this paper was to combine water pinch analysis and oxygen pinch analysis for more cost-effective wastewater treatment. Emphasis was placed on energy and resource saving. The variables that affect the cost of wastewater treatment are the quantity and the quality of the wastewater to be treated. The quantity of the wastewater to be treated was directly proportional to the treatment cost. The quality of the wastewater was inversely proportional to the treatment cost. It was found that the quantity of wastewater treated could be decreased by the application of water pinch analysis. This application also had a negative effect on the quality of the wastewater. The effect of the application of water pinch analysis decreased the quality of the wastewater being treated, hence increasing the treatment cost. This effect was negated by the application of a combined water–oxygen pinch analysis. The quality of the wastewater determined the amount of oxygen required. The oxygen pinch concept addresses this problem and in addition gives even more information about the health of the working micro-organisms. A 22.6% reduction in wastewater quantity was realised applying combination of both pinch concepts. A reduction of 23.44% in the oxygen requirement for the biodegradation of wastewater was achieved. An important feature of the combined water–oxygen pinch analysis is the balance obtained between the quantity of wastewater produced and the quality of this wastewater. 相似文献