Title:
BACTERIA-ALGAE COUPLING SEWAGE TREATMENT DEVICE BASED ON ENERGY RECYCLING, AND METHOD FOR USING SAME
Document Type and Number:
WIPO Patent Application WO/2021/077679
Kind Code:
A1
Abstract:
The present invention relates to a bacteria-algae coupling sewage treatment device based on energy recycling, and a method for using same. The device comprises a pretreatment device, a photobioreactor, an algae separation apparatus, a continuous flow bioreactor and a secondary sedimentation tank, which are sequentially connected, wherein the pretreatment device is connected to a municipal sewage inlet pipe; the photobioreactor is connected to a carbon dioxide gas filling device by means of a gas filling pipeline; one part of a sludge concentration tank is connected to the secondary sedimentation tank, and another part thereof is connected to residual sludge of the pretreatment device; carbon dioxide generated after sludge in the sludge concentration tank is subjected to thermal hydrolysis and an anaerobic acidification treatment is connected to the photobioreactor by means of a gas inlet pipeline; and the algae separation apparatus is also connected to a filter press. The present invention has the advantages of being reasonable in terms of structural design, being reliable and stable in terms of operation, having a low operation and maintenance cost and a high degree of automation and intellectualization, being suitable for usage and transformation requirements of vast sewage treatment plants, etc.
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Inventors:
JIANG YONG (CN)
LI KUIXIAO (CN)
WANG WEI (CN)
BAI YU (CN)
WANG JIAWEI (CN)
LI YE (CN)
WANG KEMING (CN)
ZHAO LIJUN (CN)
LI KUIXIAO (CN)
WANG WEI (CN)
BAI YU (CN)
WANG JIAWEI (CN)
LI YE (CN)
WANG KEMING (CN)
ZHAO LIJUN (CN)
Application Number:
PCT/CN2020/082407
Publication Date:
April 29, 2021
Filing Date:
March 31, 2020
Export Citation:
Assignee:
BEIJING DRAINAGE GROUP CO LTD (CN)
International Classes:
C02F9/14; C02F3/32
Foreign References:
| CN110697986A | 2020-01-17 | |||
| US20100276361A1 | 2010-11-04 | |||
| CN106064853A | 2016-11-02 | |||
| CN107012072A | 2017-08-04 | |||
| CN107043197A | 2017-08-15 | |||
| US3955318A | 1976-05-11 |
Attorney, Agent or Firm:
BEIJING SICHUANG DACHENG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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