A sewage treatment reactor with granular sludge self-recirculation
By setting up inclined plates and aeration devices in the granular sludge reactor, self-recirculation of the granular sludge is achieved, which solves the problem of sludge loss under high load and ensures the stable operation and treatment effect of the reactor.
CN117682659BActive Publication Date: 2025-09-19ZHENGZHOU ZHENGDONG NEW DISTRICT WATER SERVICES CO LTD +1
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Patent Information
- Application Number
- CN202410059496.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-15
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2044-01-15
AI Technical Summary
Technical Problem
When the influent load of the existing granular sludge reactor is high, the granular sludge is easily lost, resulting in a decrease in the treatment efficiency of the reactor.
Method used
Multi-layer inclined plates and aeration devices are set in the reactor to achieve self-recirculation of granular sludge through intermittent aeration, and the inclined plates are used to intercept and reverse water flow to prevent sludge loss.
Benefits of technology
It effectively prevents granular sludge from accumulating on the inclined plate, maintains the stable operation of the reactor, improves the pollutant treatment capacity, reduces suspended solids in the effluent, and reduces water treatment costs.
✦ Generated by Eureka AI based on patent content.
Abstract
The present invention relates to the technical field of sewage treatment equipment, and specifically to a sewage treatment reactor with self-recirculation of granular sludge, comprising a tank body, an inclined plate, a conduction pipe, an aeration plate, and a riser pipe. A water inlet pipe is provided at the bottom of the tank body, and the inlet water is distributed to the water distributor by a water distribution bag. The granular sludge in the tank body is in a flowing state under a certain rising flow rate. Most of the particles are intercepted by the inclined plate, and some of the granular sludge flows to the top of the inclined plate and is deposited on the inclined plate. The aeration plate is intermittently aerated, and through the riser pipe, a pressure difference is generated above and below the riser pipe. The liquid on the upper part of the inclined plate refluxes, and drives the granular sludge accumulated on the inclined plate to flow back to the reaction zone. The present invention has a simple structure and strong operability, effectively realizes the self-recirculation of granular sludge, avoids the loss of granular sludge, reduces the concentration of suspended solids in the effluent, and ensures the good operation of the reactor and the treatment effect of sewage.
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