Experience the Benefits of Our High-Performance Environmental Protection Equipment for Wastewater Treatment
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Product Description
High-Performance Environmental Protection Equipment for Wastewater Treatment
Equipment Description
Principle of Underground Wastewater Treatment Equipment
- Multi-Stage Biological Treatment Process: Wastewater passes through pretreatment (screens intercept large impurities), a regulating tank (water quality and quantity homogenization), an anaerobic zone (organic matter hydrolysis and denitrification), an aerobic zone (organic matter oxidation and nitrification), an anoxic zone (denitrification and denitrification), and a sedimentation zone (sludge separation). Finally, it undergoes disinfection before discharge or reuse.
- Anaerobic Zone: Anaerobic bacteria decompose large organic molecules, releasing biogas and performing preliminary nitrogen removal.
- Aerobic Zone: Aerobic bacteria mineralize organic matter and nitrify ammonia nitrogen.
- Anoxic Zone: Denitrifying bacteria convert nitrates into nitrogen gas, completing nitrogen removal.
- Synergistic Effect of Biofilm and Activated Sludge: Combining the biofilm process (biofilm-forming microorganisms) with the activated sludge process (suspended microbial communities) improves organic matter degradation efficiency and shock load resistance, while reducing sludge production.
Core Structure
- Pretreatment Unit: Screens intercept large particles such as hair and plastic to prevent pipe blockage; Equalization Tank buffers water volume fluctuations and maintains balanced water quality.
- Biological Treatment Unit: Anaerobic Zone utilizes elastic fillers to enhance microbial attachment; Aerobic Zone equipped with aeration devices; Anoxic Zone utilizes an internal circulation design.
- Post-Treatment Unit: Sedimentation Tank utilizes inclined tube or vertical flow sedimentation; Disinfection Device utilizes UV or chemical disinfection.
- Intelligent Control System: Integrated PLC automatic control module monitors water quality parameters in real time and supports remote monitoring.
Technical Advantages
- Space Efficiency: Fully buried design reduces floor space by over 70%.
- Stable Operation: Modular design adapts to water quality fluctuations with effluent meeting Class A standards.
- Convenient Operation and Maintenance: Low sludge production (discharged every 90 days) with automated control.
- Energy Saving and Low Carbon: Optimized aeration system reduces energy consumption by 30%.
Scope of Application
Suitable for small- to medium-scale (20-500 m³/d) applications including domestic sewage (rural areas, scenic spots, residential areas), food processing wastewater, and hospital wastewater.
Technical Parameter Examples
| Project | Parameter Range |
|---|---|
| Processing Capacity | 10-500 m³/d |
| COD Removal Rate | ≥85% |
| Ammonia Nitrogen Removal Rate | ≥90% |
| Operating Power | 0.5-3 kW (adjusted based on throughput) |
| Effluent Standard | GB 18918-2002 Class A/B Standard |
Main Structures and Components
Pretreatment Unit
- Screens intercept large impurities (such as hair and plastic) in wastewater, preventing clogging of subsequent equipment. Filtering is performed in two stages: coarse and fine screens.
- Equalization Tanks homogenize water quality and volume, buffering against fluctuations in wastewater flow. These tanks are typically constructed of reinforced concrete or fiberglass.
Biological Treatment Unit
- Anaerobic Zone: Anaerobic bacteria decompose large organic molecules, while elastic packing enhances microbial attachment for initial nitrogen removal.
- Anoxic Zone: Incorporating an internal circulation design, denitrifying bacteria convert nitrates into nitrogen gas, further removing nitrogen.
- Aerobic Zone (Contact Oxidation Tank): Forced aeration or microporous aerators provide oxygen, promoting aerobic bacteria to degrade organic matter and nitrify ammonia nitrogen.
- Membrane Bioreactor (MBR) (Optional): Integrated MBR membrane modules replace traditional secondary clarifiers for efficient solid-liquid separation and improved effluent quality.
Post-treatment Units
- Sedimentation Tanks: Inclined plate sedimentation tanks or vertical flow sedimentation tanks separate suspended sludge after biological treatment.
- Disinfection Tanks: Ultraviolet light or chemical disinfection (such as chlorine tablets) is used to ensure that the effluent meets microbial standards.
- Clear Water Tanks: Store qualified effluent for reuse or discharge.
Auxiliary Systems
- Sludge Treatment System: The sludge tank collects sludge from the sedimentation tank and returns it to the biochemical tank via a sludge pump or periodically discharges it to the outside.
- Aeration System: Consists of a blower, aeration piping, and microporous aeration heads, providing oxygen to the biological treatment unit.
- Intelligent Control System: The PLC automation module monitors water quality parameters in real time, controls equipment startup and shutdown, and supports remote operation.
Structural Materials and Layout
Main Materials: Fiberglass tanks or reinforced concrete structures are corrosion-resistant and suitable for underground environments.
Underground Design: The entire equipment is buried underground, allowing the surface to be restored to greenery or roads, saving space.
Examples of Key Components
| Component Name | Functional Description | Typical Parameters/Configuration |
|---|---|---|
| Grate | Intercepts large particles | Gap 6mm, 1000mm x 500mm |
| MBR Membrane Assembly | Solid-liquid separation and improves water quality | Japan Mitsubishi MBR membrane, flux 10-30L/(m²*h) |
| Blower | Supply oxygen to drive biodegradation | Power 0.5-3kW, one active, one standby configuration |
Features
- High cost performance: Achieves the best cost performance based on customer's product positioning and economic affordability.
- Advanced design: Meticulous design concept and highly automated industrial equipment showcase modern enterprise image.
- High adaptability: Meets current production requirements while allowing for future increased production and improved quality needs.
- Quality compliance: Strict adherence to ISO900 quality management system with rigorous control of every installation detail.
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Company
Zhejiang Huier Coating Environmental Protection Equipment Co., Ltd
Location
Room 801, Building 1, No.10 Keyuan Road, Wuyang Street, Deqing County, Huzhou City, Zhejiang Province
Contact Person
Chen Xianzhong