共查询到15条相似文献,搜索用时 62 毫秒
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印染废水具有水量大、有机污染物含量高、碱性大、水质变化大等特点,属难处理的工业废水之一。目前,用于印染废水处理的主要方法有物化法、生化法、化学法以及几种工艺结合,各种处理方法对污染物去除效率及脱色差别较大,而印染废水处理的最大难点就是脱色处理。文章系统介绍了印染废水的各种主要处理技术,评释了它们各自的特点和存在问题,并展望了印染废水处理技术的应用前景。 相似文献
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印染废水处理技术研究进展 总被引:1,自引:0,他引:1
印染废水具有水量大、有机污染物含量高、成份复杂、色度高、碱性大、水质变化大等特点,是难处理的工业废水之一。印染废水的处理方法有物理处理法、化学处理法和生物处理法。文章对印染废水的各种处理方法,从原理、特点及研究进展等方面分别进行了概述,并指出今后印染废水处理技术的优化组合会成为印染废水处理技术的研究重点。 相似文献
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文章通过对某针织印染废水处理工程提标改造实践后表明,采用混凝沉淀-水解酸化-生物接触氧化-混凝沉淀组合工艺的技术实践与方法,对印染废水特别是针织印染废水处理工程提标改造是有效的。 相似文献
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Nylon 6 was treated with a dielectric barrier discharge, i.e. atmospheric plasma at ordinary air pressure. Factors influencing the dyeing process of nylon 6 using indigo blue powder were studied. The mechanism and effect of this dyeing technology were compared with those of conventional technology. Dyeing after plasma treatment at 30–50 °C can produce high dye uptake in a short time. Notably, dyeing after plasma treatment is beneficial for energy conservation. However, at 60–70 °C, the K/S values of plasma‐treatment dyeing sharply increased over a short time, after which they remained largely unchanged. This finding indicated that the dyeing mechanism changed. The speed constant of dyeing after plasma treatment is 2.8 times that of conventional dyeing. The K/S values of dyeing samples after plasma treatment approached the dyeing saturation K/S value in a short time; therefore, this method of dyeing after plasma treatment achieves energy conservation and efficiency in a brief period of time. Conversely, conventional dyeing is more effective at high temperatures but consumes more energy. The adaptive electro‐discharge condition is achieved under the treatment conditions of 375 W for 2 min. The chromatic aberration of the dyed samples after plasma treatment is smaller than that of conventional dyeing at 50 °C for 75 min. 相似文献
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印染废水的物化处理技术 总被引:2,自引:0,他引:2
文章综述了印染废水的物化处理技术,并论述了目前印染废水物化处理技术的研究热点,提出在印染废水处理中物化处理技术与其他技术组合使用更为经济有效。 相似文献
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高级氧化技术是近年来备受人们关注的印染废水处理技术,本文分析了印染废水的基本特征,并就高级氧化技术中的超临界水氧化技术、湿式氧化技术、臭氧氧化技术、电化学氧化技术、Fenton氧化技术、超声波处理技术和光催化氧化技术在印染废水中的应用做了阐述,介绍了各技术的基本原理和应用中优缺点,为高级氧化技术在处理印染废水的实际应用提供了理论依据。 相似文献
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The dyeing properties of wool fibre treated with low-temperature plasma (LTP) were investigated kinetically and thermodynamically. Three non-polymerising gases, namely oxygen, nitrogen and a 25% hydrogen/75% nitrogen gas mixture, were used for the LTP treatment. It was found that the dyeing rate, dye uptake, standard affinity, heat of dyeing, entropy of dyeing and activation energy of diffusion were improved after the treatment. 相似文献