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1. WO2012133957 - DISSOLVED-AIR FLOTATION-TYPE PRETREATMENT APPARATUS

Publication Number WO/2012/133957
Publication Date 04.10.2012
International Application No. PCT/KR2011/002068
International Filing Date 25.03.2011
IPC
C02F 1/24 2006.01
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
24by flotation
C02F 1/28 2006.01
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
1Treatment of water, waste water, or sewage
28by sorption
B01D 24/36 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
24Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
36with the filter bed fluidised during the filtration
CPC
B01D 21/0084
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
21Separation of suspended solid particles from liquids by sedimentation
0084Enhancing liquid-particle separation using the flotation principle
B01D 24/22
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
24Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
02with the filter bed stationary during the filtration
20the filtering material being provided in an open container
22Downward filtration, the filter material being supported by pervious surfaces
B01D 24/4631
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
24Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
46Regenerating the filtering material in the filter
4631Counter-current flushing, e.g. by air
B03D 1/14
BPERFORMING OPERATIONS; TRANSPORTING
03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
DFLOTATION; DIFFERENTIAL SEDIMENTATION
1Flotation
14Flotation machines
B03D 1/1431
BPERFORMING OPERATIONS; TRANSPORTING
03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
DFLOTATION; DIFFERENTIAL SEDIMENTATION
1Flotation
14Flotation machines
1431Dissolved air flotation machines
B03D 1/1462
BPERFORMING OPERATIONS; TRANSPORTING
03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
DFLOTATION; DIFFERENTIAL SEDIMENTATION
1Flotation
14Flotation machines
1443Feed or discharge mechanisms for flotation tanks
1462Discharge mechanisms for the froth
Applicants
  • 두산중공업 주식회사 DOOSAN HEAVY INDUSTRIES & CONSTRUCTION CO., LTD. [KR]/[KR] (AllExceptUS)
  • 우성우 WOO, Sung Woo [KR]/[KR] (UsOnly)
Inventors
  • 우성우 WOO, Sung Woo
Agents
  • 박장원 PARK, Jang-Won
Priority Data
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) DISSOLVED-AIR FLOTATION-TYPE PRETREATMENT APPARATUS
(FR) APPAREIL DE PRÉTRAITEMENT DE TYPE À FLOTTATION PAR AIR DISSOUS
(KO) 용존공기 부상형 전처리장치
Abstract
(EN)
The present invention relates to a dissolved-air flotation-type pretreatment apparatus. The dissolved-air flotation-type pretreatment apparatus includes: a flotation tank configured to remove foreign substances such as floating matter, turbid matter, or algae contained in raw water such as seawater, sewage, or wastewater; a filtering compartment part (2) provided in the flotation tank (20) and having one partially opened surface and another surface such that the treated water, obtained by primarily removing the floating matter from the raw water, passes therethrough; and a plurality of filtering balls (3) embedded in the filtering compartment part, the plurality of filtering balls including a fibrous or spongy material to filter the turbid matter or floating and suspended solids that remain in the treatment water fed into the filtering compartment part (2).
(FR)
Cette invention concerne un appareil de prétraitement de type à flottation par air dissous, ledit appareil de prétraitement de type à flottation par air dissous comprenant : une cuve de flottation conçue pour éliminer les substances étrangères telles que les matières flottantes, les matières turbides, ou les algues contenues dans l'eau brute telle que l'eau de mer, l'eau d'égoût, ou les eaux usées ; une partie compartiment de filtration (2) qui se trouve dans la cuve de flottation (20) et ayant une surface partiellement ouverte et une autre surface de façon que l'eau traitée, obtenue par l'élimination essentielle des matières flottantes de l'eau brute, la traverse ; et une pluralité de balles de filtration (3) intégrées à la partie compartiment de filtration, la pluralité de balles de filtration comprenant un matériau fibreux ou spongieux pour filtrer les matières turbides ou les solides flottants et en suspension qui subsistent dans l'eau prétraitée introduite dans la partie compartiment de filtration (2).
(KO)
본 발명은 용존 공기 부상형 전처리장치를 개시한다. 상기 용존공기 부상형 전처리장치는, 해수, 하수, 또는 폐수의 원수에 포함된 부유물질, 탁질, 또는 조류(alga)의 이물질을 제거할 수 있게 하는 부상조를 포함하며,상기 부상조(20)에 구비되어, 상기 원수로부터 일차적으로 부유물질이 제거되어 얻어진 처리수가 통과할 수 있도록 일측면과 타측면이 각각 부분적으로 개방된 여과 구획부(filtering compartment part)(2); 및 상기 여과 구획부(2) 내에 가두어진 형태로 제공되며, 상기 여과 구획부(2) 내로 유입되는 처리수 중에 잔류하는 탁질 또는 부유성 고형물질(suspension solid)을 여과시킬 수 있도록 섬유사 또는 스폰지재를 포함하는 복수의 여과볼(3)을 포함하는 특징을 갖는다.
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