KR860013565U - Acid pipe with backflow prevention device - Google Patents

Acid pipe with backflow prevention device

Info

Publication number
KR860013565U
KR860013565U KR2019850004488U KR850004488U KR860013565U KR 860013565 U KR860013565 U KR 860013565U KR 2019850004488 U KR2019850004488 U KR 2019850004488U KR 850004488 U KR850004488 U KR 850004488U KR 860013565 U KR860013565 U KR 860013565U
Authority
KR
South Korea
Prior art keywords
prevention device
backflow prevention
acid pipe
pipe
acid
Prior art date
Application number
KR2019850004488U
Other languages
Korean (ko)
Other versions
KR880002619Y1 (en
Inventor
김석환
Original Assignee
김석환
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 김석환 filed Critical 김석환
Priority to KR2019850004488U priority Critical patent/KR880002619Y1/en
Publication of KR860013565U publication Critical patent/KR860013565U/en
Application granted granted Critical
Publication of KR880002619Y1 publication Critical patent/KR880002619Y1/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/20—Activated sludge processes using diffusers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
KR2019850004488U 1985-04-22 1985-04-22 Aerator KR880002619Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2019850004488U KR880002619Y1 (en) 1985-04-22 1985-04-22 Aerator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR2019850004488U KR880002619Y1 (en) 1985-04-22 1985-04-22 Aerator

Publications (2)

Publication Number Publication Date
KR860013565U true KR860013565U (en) 1986-11-18
KR880002619Y1 KR880002619Y1 (en) 1988-07-15

Family

ID=19241553

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019850004488U KR880002619Y1 (en) 1985-04-22 1985-04-22 Aerator

Country Status (1)

Country Link
KR (1) KR880002619Y1 (en)

Also Published As

Publication number Publication date
KR880002619Y1 (en) 1988-07-15

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
REGI Registration of establishment
FPAY Annual fee payment

Payment date: 19910711

Year of fee payment: 6

LAPS Lapse due to unpaid annual fee