[특허]Method for treating contaminated liquids

Method for treating contaminated liquids 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	C02F-001/42
출원번호	US-0394522 (1999-09-10)
발명자 / 주소	Tudor Helen E. A.
대리인 / 주소	Rosenberg, Klein & Lee
인용정보	피인용 횟수 : 23 인용 특허 : 38

초록 ▼

A method of removing a dissolved metal constituent from a contaminated liquid is provided. The method comprises the steps of: providing a flow stream containing the contaminated liquid; providing a plurality of shell components formed by comminuting a shell stock including at least one shell having a biomineralized calcium carbonate composition; combining the shell components with the flow stream; and converting at least one shell component to a substantially insoluble biometallic nodule by maintaining contact between the shell components and the dissolved metal constituent over a predetermined time period. The biometallic nodule thus formed contains at least a portion of the metallic constituent in a biogenic metallic carbonate form. After their formation, the biometallic nodules are separated from the treated flow stream.

대표청구항 ▼

[ What is claimed is:] [1.]1. A method of removing a dissolved metal constituent from a contaminated liquid comprising the steps of:(a) providing a flow stream containing the contaminated liquid, said flow stream having a concentration of the dissolved metal constituent greater than approximately 1300 ppm;(b) providing a plurality of shell components by comminuting substantially to a predetermined approximate particle size a shell stock including at least one shell containing a biomineralized calcium carbonate composition;(c) combining said shell components and said flow stream for mixing said shell components and the dissolved metal constituent within said flow stream;(d) growing upon at least one of said shell components a substantially insoluble metallic nodule by maintaining said shell components in substantial contact with the dissolved metal constituent over a predetermined time period, said metallic nodule containing at least a portion of the metallic constituent in a biometallic carbonate form; and,(e) separating said metallic nodule from said flow stream. [14.]14. A method of removing a dissolved heavy metal constituent from a contaminated liquid comprising the steps of:(a) providing a flow stream containing the contaminated liquid, said flow stream containing ions of the heavy metal, said heavy metal being a metal having an atomic number greater than 22, at a heavy metal concentration greater than approximately 1300 ppm;(b) providing a plurality of shell components by comminuting substantially to a predetermined approximate particle size a shell stock including at least one shell containing a biomineralized calcium carbonate composition;(c) combining said shell components and said flow stream for mixing said shell components and the dissolved heavy metal constituent of said flow stream;(d) growing upon a plurality of said shell components substantially insoluble metallic nodules by maintaining said shell components in substantial contact with the heavy metal constituent over a predetermined time period, each said metallic nodule containing a biometallic carbonate composition consuming at least a portion of the heavy metal constituent; and,(e) separating said metallic nodules from the treated flow stream.15. The method as recited in claim 14 wherein said shell components are converted to said metallic nodules by a nucleation process, whereby a plurality of bulbous protuberant portions are grown within a plurality of prismatic matrix cores defined by an organic matrix.16. The method as recited in claim 15 wherein the dissolved heavy metal constituent consumed in forming said metallic nodules substantially replaces at least a portion of the calcium ions of said biomineralized calcium carbonate composition of said shell components.17. The method as recited in claim 16 wherein said shell stock includes a plurality of said shells, each said shell being selected from the group consisting of: molluscs and crustaceans.18. The method as recited in claim 16 wherein said shell stock includes a shell selected from the group consisting of: molluscs and crustaceans.19. The method as recited in claim 18 wherein at least one said shell in said shell stock is a bivalve shell. [21.]21. A method for treating contaminated liquids comprising the steps of:(a) providing comminuted mollusc shell components substantially devoid of chitin, said mollusc shell components having a biogenic calcareous shell composition;(b) passing an upstream aqueous feedstream containing metals having an atomic number greater than 22 over said comminuted mollusc shell components, said upstream aqueous feedstream having a metal concentration greater than 2000 ppm; and,(c) growing biometallic carbonate composition nodules on said mollusc shell components, whereby a downstream metal concentration is less than 1 ppm.

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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연합인증

Method for treating contaminated liquids 원문보기

초록 ▼

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Method for treating contaminated liquids 원문보기

초록 ▼

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연구과제 타임라인

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이 특허에 인용된 특허 (38)

이 특허를 인용한 특허 (23)

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