Results 11 to 20 of about 16,584 (77)

中和胺在热力厂节水节能中的应用

open access: yesGongye shui chuli, 2000
针对热力厂及宾馆、饭店蒸汽锅炉产生的冷凝回水中由于二氧化碳的腐蚀引起回水“发红”不能回用的问题,采用在蒸汽中加入中和胺,提高 pH值的方法,可以有效的提高回水回收率,经济效益显著。
白净
doaj   +2 more sources

膜蒸馏在高氨氮废水处理与回用中的研究应用进展

open access: yesGongye shui chuli, 2021
高氨氮废水主要包括畜禽养殖废水、尿液、垃圾渗滤液、焦化废水、化工废水等,来源广、排放量大,其有效处理与高效回用成为水处理领域亟需解决的问题之一。膜蒸馏(MD)具有显著的耐污染能力和高效的处理性能,受到广泛关注。对MD在典型高氨氮废水处理与回用中的应用现状进行概述,综合分析其处理高氨氮废水时存在的问题,并总结归纳了主要解决策略与进展。研究表明,MD可实现高氨氮废水中的水回用和氨回收,是处理与回用高氨氮废水的一项关键技术。膜污染和润湿仍是MD面临的主要问题,同时 ...
康赛, 郑利兵, 魏源送, 李清雪
doaj   +2 more sources

中型炼油厂凝结水回收系统技术浅议

open access: yesGongye shui chuli, 2018
炼厂凝结水集中回收处理合格后可回用于锅炉,实现回用和高质高用的目的。对某中型炼厂凝结水回收系统的设计原则及建设、运行情况进行介绍,并就相关问题进行探讨。
李勇, 司鹏, 王素芳
doaj   +2 more sources

膜分离技术用于废水中金属的分离和回收

open access: yesGongye shui chuli, 2016
废水中的金属元素是污染环境的主要因素之一,对废水中的金属元素进行分离回收可以充分利用资源,减少污染。通过膜分离技术进行二次金属资源的回收和水的回用处理已有大量研究,并在工程实践中获得效益。综述了几种常见的膜分离技术,分析了各种技术在金属分离及回收中的适用条件和局限性,并对膜分离技术在金属废水资源化中的应用前景及发展进行了展望。
黄万抚   +5 more
doaj   +2 more sources

浅谈中水回用对循环水的影响与对策

open access: yesGongye shui chuli, 2015
介绍了中石化武汉分公司中水回用于循环冷却水系统的基本情况,深入研究了中水主要控制指标波动时对循环水水质产生的各种危害和影响,并提出了相应的控制优化措施,有效提升了循环水系统中水回用量,降低了企业新鲜水耗。
周超
doaj   +2 more sources

多级膜法+混床工艺处理砂轮厂含镍废水工程应用

open access: yesGongye shui chuli, 2019
采用多级膜法+混床工艺处理某砂轮厂含镍废水并回用,工程运行结果表明,该工艺处理效果良好,回用水水质稳定,总镍未检出,电导率< 20 μS/cm,水质优于《生活饮用水卫生标准》(GB 5749—2006),满足厂方回用于工艺生产的要求,中水回用率达到100%,基本实现了废水的零排放目标。
胡适, 陈威, 王宗平, 戴双建
doaj   +2 more sources

滤池反冲洗水直接回用对给水厂水质的影响

open access: yesGongye shui chuli, 2012
研究了V型滤池反冲洗水直接回用对给水厂水质的影响。结果表明:回用滤池反冲洗废水有利于对沉后水浊度的去除,回用比例小于10%时,沉后水浊度呈下降趋势。回用反冲洗水同时会降低沉后水CODMn,还可以小幅度降低沉后水的UV254。当滤池反冲洗水回用比例大于10%时,沉后水中细菌总数有明显提高。最后通过数学方法确定了水厂反冲洗水的最佳回用比为3%~10%。
张弓, 孙敏, 付永华
doaj   +2 more sources

啤酒工业废水回用技术研究进展

open access: yesGongye shui chuli, 2014
啤酒生产过程中会产生大量的废水,必须经过处理达到排放标准后排放或者达到回用标准后回用。根据啤酒废水来源不同其水质明显不同,这是废水回用的基础。对啤酒生产工艺及废水产生情况进行了介绍,综述了几种新型废水回用技术,主要包括膜过滤、膜生物反应器、低温等离子体以及电化学方法,总结了这些新技术各自的优缺点,并对其在废水回用中的应用情况作相关展望。
王亚军   +4 more
doaj   +2 more sources

高效反渗透工艺在浓盐水浓缩中的应用

open access: yesGongye shui chuli, 2021
某煤化工企业的中水回用水站存在回收率低、浓盐水排放量超出设计值等问题,应急水池溢流情况时有发生。需对浓盐水进行浓缩处理,出水可作为循环冷却水补水。采用机械澄清池+多介质过滤器+离子交换系统+除碳器+高效反渗透工艺对回用水站浓盐水进行浓缩,其中高效反渗透装置为浓盐水浓缩核心工艺。在预处理彻底去除硬度的前提下,高效反渗透装置可在高pH条件下稳定运行。与普通酸性运行条件相比,该工艺耐有机污染能力强,浓盐水回收率达到80%以上,系统浓水总溶固(TDS)≤ 64 500 mg/L,产水水质可满足GB/T ...
丁宁, 郭辉, 王陆涛, 丁丹
doaj  

城市中水回用于工业冷却水技术初探

open access: yesGongye shui chuli, 2005
中水回用对于解决水资源短缺具有其他方法无法比拟的优势,其成功应用将产生巨大的经济效益和社会效益。作者针对天津市中水水质情况结合企业工况条件,对中水作为循环冷却水系统补充水的技术可行性进行了分析,同时对拟选择的凝汽器材质以及配套使用的水处理药剂进行了评价和筛选,提出了中水回用的必要控制条件。
陈军, 李映川, 朱志坤, 顾占昌
doaj   +2 more sources

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