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公开(公告)号：US5922198A
公开(公告)日：1999-07-13
申请号：US987191
申请日：1997-12-08
CPC分类号： B01J47/002 , B01J39/04
摘要： A mobile process to reclaim spent aqueous glycol solutions used as heat transfer fluids and which contains deleterious contaminants, oil/grease, corrosion products, and additives such as buffers and corrosion inhibitors. Particulate contaminates and oil/grease are removed by passing the solution through an ultrafiltration membrane. The dissolved contaminants are removed by passing through a series of ion exchange resin (IER) vessels. The reclaimed glycol solution is reused after replacing the required additives. One embodiment provides for central processing of the filtration and absorption media housed in a mobile enclosure, such as a trailer. The mobile trailer may be used at various collection sites for cleaning and reprocessing spent glycols. After the media are spent, the mobile trailer is returned to a central processing facility for regeneration of the filtration and absorption media. The waste produced by the regeneration is concentrated at a single treatment and disposal facility.
摘要翻译： 用于回收用作传热流体的废二水乙二醇溶液并且含有有害污染物，油/油脂，腐蚀产物以及添加剂如缓冲剂和腐蚀抑制剂的流动方法。 通过使溶液通过超滤膜去除颗粒污染物和油/油脂。 通过一系列离子交换树脂（IER）容器去除溶解的污染物。 回收的二醇溶液在更换所需的添加剂后重新使用。 一个实施例提供了容纳在诸如拖车的移动外壳中的过滤和吸收介质的中央处理。 移动式拖车可用于各种收集站点，用于清洁和再处理废二元醇。 媒体消耗后，移动预告片返回到中央处理设备，用于过滤和吸收介质的再生。 再生产生的废物集中在一个处理和处置设施上。
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公开(公告)号：US5785857A
公开(公告)日：1998-07-28
申请号：US740703
申请日：1996-10-31
CPC分类号： B01J47/002 , B01J39/04
摘要： A mobile process to reclaim spent aqueous glycol solutions used as heat transfer fluids and which contains deleterious contaminants, oil/grease, corrosion products, and additives such as buffers and corrosion inhibitors. Particulate contaminates and oil/grease are removed by passing the solution through an ultrafiltration membrane. The dissolved contaminants are removed by passing through a series of ion exchange resin (IER) vessels. The reclaimed glycol solution is reused after replacing the required additives. One embodiment provides for central processing of the filtration and absorption media housed in a mobile enclosure, such as a trailer. The mobile trailer may be used at various collection sites for cleaning and reprocessing spent glycols. After the media are spent, the mobile trailer is returned to a central processing facility for regeneration of the filtration and absorption media. The waste produced by the regeneration is concentrated at a single treatment and disposal facility.
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