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1. 发明授权

US5948262A Waste water treatment, media therefor and its manufacture 失效
标题翻译：废水处理，媒体及其制造
公开(公告)号：US5948262A
公开(公告)日：1999-09-07
申请号：US894077
申请日：1997-08-12
申请人： John James Todd , Adrian Hopwood
发明人： John James Todd , Adrian Hopwood
IPC分类号： B01J2/00 , C02F3/10 , C02F3/12
CPC分类号： C02F3/085 , B01J2/006 , C02F3/10 , Y02W10/15 , Y10T428/2993 , Y10T428/2998
摘要： Particulate material for use in waste water treatment. The material comprises granules of a plastic material (e.g. poly-ethylene), each of which contains a plurality of grains of a substantially inert mineral (e.g. sand) coated thereon to provide a habitat for microorganisms effective in waste water treatment. The granules will have a predetermined particle size which is governed by the particle size range of the granules, e.g 3-10 mm and the grains will have a predetermined particle size range, e.g. 0.1-3.5 mm.
摘要翻译： PCT No.PCT / GB96 / 00335 Sec。 371日期：1997年8月12日 102（e）日期1997年8月12日PCT 1996年2月13日PCT PCT。 WO96 / 25367 PCT出版物日期1996年8月22日用于废水处理的材料。该材料包括塑料材料（例如聚乙烯）的颗粒，每个颗粒包含多个涂覆有基本上惰性的矿物（例如砂）的颗粒，以提供有效处理废水的微生物的栖息地。颗粒将具有由颗粒的粒度范围（例如3-10mm）控制的预定的粒度，并且颗粒将具有预定的粒度范围，例如颗粒尺寸范围。 0.1-3.5毫米。

2. 发明授权

US6156204A Waste water treatment, media therefor and its manufacture 失效
标题翻译：废水处理，媒体及其制造
公开(公告)号：US6156204A
公开(公告)日：2000-12-05
申请号：US337990
申请日：1999-06-22
申请人： John James Todd , Adrian Hopwood
发明人： John James Todd , Adrian Hopwood
IPC分类号： B01J2/00 , C02F3/10 , C02F3/12 , C02F3/00
CPC分类号： C02F3/085 , B01J2/006 , C02F3/10 , Y02W10/15 , Y10T428/2993 , Y10T428/2998
摘要： Granules of plastics material have grains of an inert mineral such as sand coated thereon to provide a habitat for microorganisms effective in waste water treatment, the granules having a predetermined particle size range, and the grains having a predetermined particle size range and being disposed at a predetermined packing density range on the granules. The particles have an average density of approximately 1.0 g/cc such that a proportion tend to float and a proportion tend to sink in the waste water. The particles arc manufactured by contacting the granules of plastics material with a mixture of grains of the inert mineral and grains of a soluble substance such as salt, at an elevated temperature, to coat the granules with the mixture, and subsequently dissolving the soluble substance grains from the coating to provide the granules coated with the grains of inert mineral in the predetermined packing density range.
摘要翻译：塑料颗粒具有包覆在其上的惰性矿物颗粒，以提供有效处理废水的微生物的栖息地，颗粒具有预定的粒度范围，并且具有预定粒度范围的颗粒并且设置在颗粒上预定的包装密度范围。颗粒的平均密度为约1.0g / cc，使得比例倾向于浮起，并且比例倾向于在废水中下沉。颗粒通过使塑料颗粒与惰性矿物颗粒和可溶性物质如谷物的混合物在高温下接触而制成，以将混合物包覆颗粒，随后将可溶性物质颗粒从涂层中提供涂覆有预定填充密度范围的惰性矿物颗粒的颗粒。

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