TW363946B - Combined continuous and intermittent aeration for wastewater treatment - Google Patents

Combined continuous and intermittent aeration for wastewater treatment

Info

Publication number
TW363946B
TW363946B TW084101662A TW84101662A TW363946B TW 363946 B TW363946 B TW 363946B TW 084101662 A TW084101662 A TW 084101662A TW 84101662 A TW84101662 A TW 84101662A TW 363946 B TW363946 B TW 363946B
Authority
TW
Taiwan
Prior art keywords
aeration tank
stage
wastewater
intermittent aeration
treated
Prior art date
Application number
TW084101662A
Other languages
Chinese (zh)
Inventor
Wen-Yuan Tzou
Tan-Qing Zhang
Hsin Shao
Huey-Song You
Original Assignee
Ind Tech Res Inst
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 Ind Tech Res Inst filed Critical Ind Tech Res Inst
Priority to TW084101662A priority Critical patent/TW363946B/en
Application granted granted Critical
Publication of TW363946B publication Critical patent/TW363946B/en

Links

Classifications

    • 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

  • Activated Sludge Processes (AREA)

Abstract

The objective of this invention is to reduce the cost of chemicals and to control sludge bulking in aeration tank. The incoming wastewater is necessary to adjust pH value to neutralization before the organic wastewater was treated by an activated sludge process. However, the sludge bulking occurred frequently in activated sludge resulting in high SS (suspended solids) concentration and turbidity in effluent. The process combined a continuous aeration tank with an intermittent aeration tank in this invention is applied to a low pH wastewater which is not need to neutralize by NaOH and flew directly into the first stage aeration tank. The volatile organic acids were decomposed in this stage, the rest of organic pollutants were treated by an intermittent aeration tank which followed by a continuous aeration tank. The dissolved oxygen (DO) in the second stage is equal to zero during non-aeration periods to select microorganisms in terms of zoogloea bacteria rather than filamentous bacteria. The advantage of this process is to treat organic pollutants, to control sludge bulking, and to avoid a high pH in the final effluent.
TW084101662A 1995-02-20 1995-02-20 Combined continuous and intermittent aeration for wastewater treatment TW363946B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW084101662A TW363946B (en) 1995-02-20 1995-02-20 Combined continuous and intermittent aeration for wastewater treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW084101662A TW363946B (en) 1995-02-20 1995-02-20 Combined continuous and intermittent aeration for wastewater treatment

Publications (1)

Publication Number Publication Date
TW363946B true TW363946B (en) 1999-07-11

Family

ID=57940908

Family Applications (1)

Application Number Title Priority Date Filing Date
TW084101662A TW363946B (en) 1995-02-20 1995-02-20 Combined continuous and intermittent aeration for wastewater treatment

Country Status (1)

Country Link
TW (1) TW363946B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI422537B (en) * 2006-02-03 2014-01-11 Kurita Water Ind Ltd Biological treatment method of organic wastewater
CN108545838A (en) * 2018-06-26 2018-09-18 环境保护部华南环境科学研究所 A kind of anchoring type polluted water body purified in situ processing method and processing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI422537B (en) * 2006-02-03 2014-01-11 Kurita Water Ind Ltd Biological treatment method of organic wastewater
CN108545838A (en) * 2018-06-26 2018-09-18 环境保护部华南环境科学研究所 A kind of anchoring type polluted water body purified in situ processing method and processing device
CN108545838B (en) * 2018-06-26 2024-04-26 生态环境部华南环境科学研究所 Anchoring type polluted water body in-situ purification treatment method and device

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