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1. WO2022005063 - MEMBRANE FOR AIR DIFFUSER INCLUDING TWO KINDS OF RUBBER

Publication Number WO/2022/005063
Publication Date 06.01.2022
International Application No. PCT/KR2021/007640
International Filing Date 17.06.2021
IPC
C02F 3/20 2006.1
CCHEMISTRY; METALLURGY
02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
3Biological treatment of water, waste water, or sewage
02Aerobic processes
12Activated sludge processes
20using diffusers
Applicants
  • (주)효광테크 HYOKWANG TECH CO., LTD [KR]/[KR]
  • 미래그린텍 주식회사 MIRAEGREENTECH. CO,. LTD. [KR]/[KR]
Inventors
  • 최원용 CHOI, Won Yong
  • 추지화 CHOO, Ji Hwa
Agents
  • 해움특허법인 HAEUM PATENT & LAW FIRM
Priority Data
10-2020-008117501.07.2020KR
Publication Language Korean (ko)
Filing Language Korean (KO)
Designated States
Title
(EN) MEMBRANE FOR AIR DIFFUSER INCLUDING TWO KINDS OF RUBBER
(FR) MEMBRANE POUR DIFFUSEUR D'AIR COMPRENANT DEUX TYPES DE CAOUTCHOUC
(KO) 2종의 고무를 포함하는 산기관용 멤브레인
Abstract
(EN) A membrane for an air diffuser according to the present invention has a multi-layered or single-layered structure including two rubber layers of different hardness, and thus can generate air microbubbles having a size of no greater than 1 mm, has an excellent oxygen transfer efficiency with which oxygen in the air is dissolved in wastewater, and improves the durability of a slit to prevent portions that are subjected to high air pressure from easily tearing, thus having the effect of delaying product replacement. In addition, punching of extremely tiny air holes is possible such that permanent compression set, which is a flaw of EPDM-based membranes, is significantly mitigated when the inflow of air is halted, and thus the membrane has the effect of preventing the backflow of wastewater into the membrane air diffuser.
(FR) Une membrane pour un diffuseur d'air selon la présente invention présente une structure multicouche ou monocouche comprenant deux couches de caoutchouc de dureté différente, et peut ainsi générer des microbulles d'air dont la taille ne dépasse pas 1 mm, possède une excellente efficacité de transfert d'oxygène avec laquelle l'oxygène de l'air est dissous dans les eaux usées, et renforce la durabilité d'une fente pour empêcher les parties qui sont soumises à une pression d'air élevée de se déchirer facilement, ce qui a pour effet de retarder le remplacement du produit. En outre, le poinçonnage de trous d'air minuscules est possible de telle sorte que la déformation permanente par compression, qui est un défaut des membranes à base d'EPDM, est considérablement atténuée lorsque l'entrée d'air est interrompue, et la membrane a donc pour effet d'empêcher le reflux des eaux usées dans le diffuseur à membrane.
(KO) 본 발명에 따른 산기관용 멤브레인은 경도가 상이한 두 고무층을 포함하는 복층 또는 단층 구조로 멤브레인을 구성함으로써, 1mm 이하의 미세한 공기 기포 발생이 가능하여 공기중의 산소를 하폐수에 용해시켜주는 산소전달효율(Oxygen Transfer Efficiency)이 우수하고, 슬릿의 내구력을 향상시켜 공기 압력이 크게 작용하는 부분이 쉽게 찢어지는 것을 방지하여 제품 교체시기를 늦출 수 있는 효과를 갖는다. 또한, 극히 미세한 공기 구멍의 타공이 가능하여 공기 유입이 중단되었을 때 EPDM계 멤브레인의 단점인 영구 압축줄음율을 크게 개선하여 폐수가 멤브레인 산기관 안으로 역류하는 현상을 방지하는 효과가 있다.
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