共查询到19条相似文献,搜索用时 46 毫秒
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分析了冷轧废水产生的来源,说明了冷轧废水在处理工艺选择、水质、水量确定上的困难。通过宝钢工程改造成功的经验,提出了将生物处理应用于冶金行业的冷轧废水处理思路,并总结了冷轧废水处理工程设计的几点看法。 相似文献
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介绍了太钢冷轧厂废水废酸处理技术,重点介绍了废酸及稀酸废水处理系统、含铬废水处理系统、高密度污泥处理新工艺,及处理后的效果。 相似文献
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冷轧厂含铬废水的产生源头及处理方法研究 总被引:1,自引:0,他引:1
鉴于六价铬的毒害性大,在进行冷轧厂含铬废水处理研究过程中,通过对含铬废水来源及铬离子分布的了解,系统介绍了含铬废水的特性和处理方法。同时,介绍了一种处理效果稳定、投资不高、操作可行的还原沉淀法工艺。此外,也指出了对镀锌钢板涂镀钝化液的研究重要性和源头控制污染的必要性。 相似文献
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对吉林某冷轧厂盐酸再生工艺进行了简述,并对系统运行的问题进行了分析探讨,提出了优化酸再生系统运行的相应措施并应用在实际生产过程中。 相似文献
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不锈钢冷轧退火酸洗机组需要对带钢进行酸洗处理以去掉带钢表面氧化铁皮,通过对混酸酸洗产生的废酸进行树脂吸附,去掉可溶性金属离子,自由酸重新循环利用,以减少废酸排放,降低生产成本,提高酸洗产品质量。 相似文献
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YANG Da-zheng QI Dian-wei XU Peng-fei ZHANG Da-kui MA Guang-yu LI Jing 《钢铁研究学报(英文版)》2013,20(3):36-38
In order to prevent the powdering of a sintered ore from influencing the smooth operation of a blast furnace, the conventional way to deal with it is that the CaCl2 solution is prepared by tap water, and then the solution is sprayed onto the sintered ore for improving its RDI (low temperature reduction degradation index). The CaCl2 solution prepared by adding acid and alkaline waste water resulted from cold rolling is sprayed onto the sintered ore to improve its RDI. The values of RDI+6. 3 and RDI+3. 15 of the sintered ore which is sprayed by the CaCl2 solution with the CaCl2 concentration of 3. 5% (mass percent) are increased by 17. 5% and 11. 63%, but the index of RDI-0. 5 is decreased by 3. 1% when the spraying amount of the solution is making up 0. 5% of the total sintered ore sprayed in comparison with those of the sintered ore which is not sprayed by using the CaCl2 solution. Experimental results show that after the CaCl2 solutions prepared by adding the acid and alkaline waste water are sprayed on the sintered ore, RDI of the ore can be remarkably improved and therefore another way for recycling acid and alkaline waste water can be available, by which both cost for treating waste water and cost for producing a sintered ore can be decreased and environment is free of pollution by harmful substances in the waste water. 相似文献
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针对马钢酸洗连轧线酸雾抽排系统排酸浓度高和废酸坑中废水酸性偏高的问题,增加了自动回收装置,减少了新酸、石灰和块碱的消耗。 相似文献