Contamination removal system employing filtration and plural ultraviolet and chemical treatment steps and treatment mode
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-024/46
B01D-041/02
B01D-036/00
B01D-037/04
출원번호
US-0549596
(1990-07-06)
발명자
/ 주소
Wang Lawrence K. (Latham NY) Kurylko Lubomry (New Providence NJ) Wang Mu H. S. (Latham NY)
출원인 / 주소
International Environmental Systems Inc. (Pittsfield MA 02)
인용정보
피인용 횟수 :
41인용 특허 :
0
초록▼
An improved cross-flow granular filtration system involving the use of ultraviolet, ozonation, chlorination, reactive granular filtration media, chemical regeneration, and central flow control is described. The process system and apparatus includes a liquid pump, a central flow control, a cross-flow
An improved cross-flow granular filtration system involving the use of ultraviolet, ozonation, chlorination, reactive granular filtration media, chemical regeneration, and central flow control is described. The process system and apparatus includes a liquid pump, a central flow control, a cross-flow reactive pressure filter, a process tank and at least one chemical feeder. The filter media are of reactive and granular type, including diatomaceous earth, granular activated carbon, granular metal medium, greensand, neutralizing sand, activated alumina, ion exchange resins, polymeric adsorbents, coal, porous plastic medium, porous stainless steel medium, porous ceramic medium, bacteriostatic filter medium, or combinations thereof. Alternatively a downflow or upflow filter is substituted for the crossflow reactive pressure filter. The process tank contains and handles regeneration chemicals or filter aids for the reactive filter media. The process system is compact and simple, and cost-effectively removes suspended, dissolved, volatile and living contaminants from liquid.
대표청구항▼
An improved filtration process for removing contaminants from a contaminated liquid comprising the following steps: (a) operating an apparatus comprising a piping system including an influent liquid pipe, effluent discharge pipes, a waste drain, and process pipes, an ultraviolet pretreatment means,
An improved filtration process for removing contaminants from a contaminated liquid comprising the following steps: (a) operating an apparatus comprising a piping system including an influent liquid pipe, effluent discharge pipes, a waste drain, and process pipes, an ultraviolet pretreatment means, a chemical feed system, a pump means, a process tank, a pressure filter means including reactive granular filter media and a filter septum, an ultraviolet post-treatment means, and a central flow control means in a filtration mode, (b) pumping the contaminated liquid to said influent liquid pipe of said apparatus, (c) disinfecting the contaminated liquid by said ultraviolet pretreatment means, as needed, and producing an ultraviolet pretreated liquid, feeding a chemical selected from the group consisting of oxine, hypochlorite, peroxide and permanganate, or combinations thereof, as needed, to the ultraviolet pretreated liquid for chemical pretreatment and producing an ultraviolet and/or chemical pretreated liquid, (e) pumping the ultraviolet and/or chemical pretreated liquid to said central flow control means to said pressure filter means which comprises reactive granular filter media and a filter septum, (f) filtering the ultraviolet and/or chemical pretreated liquid by said reactive granular filter media supported by said filter septum inside said pressure filter means for removal of suspended, dissolved, living and non-living contaminants, and producing a filter effluent and a concentrate, (g) periodically discharging a portion of said concentrate from said pressure filter means though an on/off valve during a prolonged filtration operation,
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허를 인용한 특허 (41)
Tillman, Jr., Bernard William, Air purification unit.
Hill David J. (Lincoln Park MI) Hoitash Frederick J. (Ypsilanti MI), Method and apparatus for using ozone in a pressure vessel to treat stream of pollutants.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.