Title:
BIOLOGICAL TREATMENT AND SLUDGE-WATER SEPARATION APPARATUS SUITABLE FOR UNDERGROUND SEWAGE PLANT
Document Type and Number:
WIPO Patent Application WO/2023/178968
Kind Code:
A1
Abstract:
Disclosed in the present invention is a biological treatment and sludge-water separation apparatus suitable for an underground sewage plant. The biological treatment and sludge-water separation apparatus comprises two biological tanks, which are symmetrically arranged, and a peripheral inflow-outflow sedimentation tank, which is connected to the two biological tanks. Each biological tank comprises an anaerobic tank, a front anoxic tank, a front aerobic tank, a rear anoxic tank and a rear aerobic pool, which are sequentially arranged in a water output direction, wherein the front aerobic tank is connected to an input end of a backflow component; and an output end of the backflow component is connected to the front anoxic tank. The peripheral inflow-outflow sedimentation tank comprises two tank bodies, which are symmetrically arranged; sludge scraping and scum scraping components arranged in the tank bodies; sludge discharging components, which are respectively arranged at left and right ends of each tank body; and water distribution components arranged in a lengthwise direction of the tank bodies. In this way, the present invention uses the structural design of the two biological tanks and the rectangular peripheral inflow-outflow sedimentation tank, which shares the same wall with the two biological tanks. Therefore, the whole structure is compact and occupies a small space, and thus has a high space utilization rate; and the functional tanks in each biological tank are rational in layout and operate stably, and therefore the overall nitrogen-removal efficiency is high.
Inventors:
TANG DINGDING (CN)
XIA YUNFENG (CN)
JIAO HE (CN)
WANG TAO (CN)
MING HONGPING (CN)
WANG XIAODONG (CN)
HUO PEISHU (CN)
ZHAO HUANG (CN)
ZHOU YAN (CN)
XIA YUNFENG (CN)
JIAO HE (CN)
WANG TAO (CN)
MING HONGPING (CN)
WANG XIAODONG (CN)
HUO PEISHU (CN)
ZHAO HUANG (CN)
ZHOU YAN (CN)
Application Number:
PCT/CN2022/121634
Publication Date:
September 28, 2023
Filing Date:
September 27, 2022
Export Citation:
Assignee:
CHINA CONSTRUCTION THIRD BUREAU GREEN INDUSTRY INVEST CO LTD (CN)
International Classes:
C02F3/30
Foreign References:
| CN115043493A | 2022-09-13 | |||
| CN214167707U | 2021-09-10 | |||
| CN111592109A | 2020-08-28 | |||
| CN214611772U | 2021-11-05 | |||
| CN113461257A | 2021-10-01 | |||
| CN216170167U | 2022-04-05 | |||
| CN113797606A | 2021-12-17 | |||
| JP2007136298A | 2007-06-07 |
Attorney, Agent or Firm:
HEFEI XINGDONG INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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