Process Description for Integrated Wastewater Treatment Equipment

I. Equipment Overview

An integrated wastewater treatment equipment is a modular treatment unit that combines pretreatment, biochemical treatment, advanced purification, and disinfection functions. It is suitable for various applications such as domestic wastewater, rural wastewater, and small-scale industrial wastewater. The core process, which combines physical, chemical, and biological treatment technologies, achieves efficient purification of wastewater, with the effluent quality meeting the "Urban Wastewater Treatment Plant Pollutant Emission Standards" (Our products meet the GB 18918-2002 Level A Standard or higher requirements.

Section II: Core Technology Principle

1. Pre-treatment Unit

• Grille FilterWastewater is intercepted by格栅 to remove large suspended particles (such as plastics and hair), preventing blockages in subsequent equipment.

• Regulating PoolBalance water quality and quantitypH levels, providing stable conditions for subsequent biochemical treatment.

• Sedimentation PondOptional: Remove silt and other inorganic particles through gravity sedimentation.

2. Biochemical Treatment Unit

• AO Process (Anaerobic-Aerobic)

– Anaerobic PondUnder anaerobic conditions, denitrifying bacteria convert nitrates into nitrogen gas (denitrification) while decomposing organic matter.

– Aerobic ReactorAeration systems provide oxygen to aerobic microorganisms for the degradation of organic matter.COD, BOD), and simultaneously complete the nitrification reaction (ammonium nitrogen → nitrates).

• A²O Process (Anaerobic-Anoxic-Oxic)Enhanced nitrogen and phosphorus removal capabilities, suitable for high nitrogen and phosphorus wastewater.

• MBR Process (Membrane Bioreactor)The combination of the activated sludge process with ultrafiltration membranes, replacing the secondary sedimentation tank, significantly improves the effluent water quality.

3. Deep Processing Unit

• Efficient accumulationBy adding flocculants to accelerate the settling of suspended particles, total phosphorus and residual pollutants are removed.

• Disinfection SystemOur water purification system utilizes ultraviolet and ozone sterilization to ensure that the output water meets the microbiological standards.

• Filter ModuleOptional: Quartz sand filtration or activated carbon adsorption to further remove color and trace pollutants.

4. Wastewater Treatment Unit

• The remaining sludge, after concentration and dewatering, can be periodically transported externally or recycled to the biochemical pool for disposal reduction.

Section 3: Process Flow Diagram

Wastewater → Grille→ Regulation Pool→ Biochemical PondAO/A²O/MBR） → Sedimentation Pond→ Disinfection Pool→ Compliance with Emission Standards
                          ↓  
                         Sludge Dewatering → Ocean shipping disposal

Four: Technical Advantages

1. Modular design
The equipment is integrated into carbon steel or glass steel tanks, occupying minimal space, requiring no extensive civil engineering, and has a short installation period.

2. Intelligent Control
EquippedPLC Automatic Control System monitors real-time parameters such as pH, DO, and flow, supporting remote monitoring and fault alarms.

3. High-efficiency and energy-saving
Implementing efficient aeration devices (such as microporous aeration) and variable-frequency fans to reduce energy consumption.The MBR process saves over 30% of the land area.

4. Impact-resistant load
The regulating pool buffers water quality fluctuations, and the microbial community in the biochemical unit remains stable, adapting to the intermittent discharge characteristics of rural wastewater.

5. Flexible Expansion
Support for parallel operation on multiple devices, with scalable processing capacity fromIncreased from 5m³/day to 500m³/day.

V. Applicable Scenarios

• Rural domestic wastewaterDecentralized processing to address the issue of insufficient pipeline coverage.

• Tourist AttractionNo secondary pollution, protecting the ecological environment.

• Food processing wastewaterHigh Organic Load Treatment

• Hospital, schoolMeets stringent disinfection requirements.

Six, Conclusion

Integrated wastewater treatment equipment achieves wastewater treatment through optimized process combinations and intelligent control."Efficiency, intensification, and greenness" represent the ideal solution for small and medium-scale wastewater treatment. Its modular structure and low operation and maintenance costs align with the strategic needs of national rural revitalization and ecological civilization construction.