Integrated sewage treatment equipment

Working principle

The integrated treatment equipment for domestic sewage adopts a combination process of multi-stage biodegradation, physical precipitation, and end disinfection, purifying sewage in different areas step by step, and fully automated and sequential treatment, with stable working conditions and strong resistance to impact loads.

The sewage first enters the pre-treatment and regulation zone, where it is intercepted by a grid to remove large particles such as plastic bags, leaves, and suspended solids. At the same time, the water quality and quantity are balanced to solve the problems of large fluctuations and uneven concentration in sewage discharge; Subsequently, the sewage enters the anaerobic zone, where anaerobic bacteria decompose large organic pollutants, degrade COD, break down the structure of sewage impurities, and enhance the biodegradability of the water body; Then enter the anoxic zone and complete denitrification treatment through denitrification reaction to remove total nitrogen from the water body; After entering the aerobic biochemical zone, the efficient composite microbial community quickly adsorbs and decomposes organic pollutants, ammonia nitrogen, and phosphides in the water, achieving core water purification; The purified water enters the sedimentation zone, completing the separation of mud and water. The supernatant flows automatically to the disinfection tank, where it is disinfected and sterilized to remove harmful bacteria such as Escherichia coli, and finally discharged or reused in compliance with standards; The settled sludge is automatically returned to the sludge area for regular sludge concentration treatment, significantly reducing sludge discharge.

Equipment configuration

The whole machine is modularized and integrated into one, with separate purification zones, complete treatment processes, stable operation, and resistance to manufacturing. The complete set of industrial grade configurations is suitable for 24-hour continuous sewage treatment conditions. The core configurations are as follows:

• Anticorrosion equipment box: the main body is made of thickened carbon steel anti-corrosion or glass fiber reinforced plastic, which is welded and sealed as a whole, impervious and leak proof, acid and alkali corrosion resistant, aging resistant, and compression resistant. The buried equipment has no rust, deformation, or leakage for long-term use, and is suitable for outdoor complex working conditions.
• Efficient biological packing: Built in elastic three-dimensional packing, combined biological packing, with a large specific surface area, fast film formation speed, large attachment of biological bacteria, high biochemical reaction efficiency, not easy to fall off, long service life, and continuous guarantee of degradation effect.
• Aeration oxygen supply system: equipped with silent Roots blower and microporous aerator, with uniform aeration, high dissolved oxygen rate, low energy consumption, ensuring sufficient microbial activity in the aerobic zone, thorough degradation of organic pollutants, and no dead corners.
• Fully automatic reflux and sewage discharge system: equipped with sludge reflux pump, sewage lifting pump, and automatic sewage discharge valve, realizing automatic sludge reflux, sewage lifting, and impurity discharge without manual intervention.
• Slant tube sedimentation device: Built in hexagonal honeycomb inclined tube packing, fast sedimentation speed, good solid-liquid separation effect, effectively intercepting suspended sludge, ensuring clear and turbidity free effluent.
• Intelligent disinfection system: optional UV disinfection and chlorine dioxide dosing disinfection modules can efficiently kill water bacteria and Escherichia coli, meet environmental discharge standards, and adapt to different effluent standards.
• PLC intelligent electronic control system: fully automatic one click start stop, fault self check, overload protection, water shortage protection, 24-hour unmanned operation, can be equipped with remote monitoring and data upload modules, suitable for intelligent operation and maintenance needs.
• Optional supporting systems: can be equipped with sludge dewatering device, dosing and phosphorus removal system, online water quality monitoring, sound insulation and noise reduction device, anti freezing and insulation structure, suitable for high concentration sewage, low temperature, and strict environmental protection acceptance conditions.

Product advantages

Integrated and convenient installation, short construction period

The equipment is highly integrated with all sewage treatment units, without the need for large-scale civil construction. It can be put into operation with simple foundation pit embedding and pipeline docking. The installation cycle is short and the production is fast, greatly reducing the construction cost and site investment of the project.

Underground design, does not occupy space

The main body can be buried underground, and the ground can be covered with soil for greening, hardened and open to traffic. There is no ground equipment occupation, no visual impact, low equipment operation noise, and no odor diffusion. It is suitable for residential environments such as communities, scenic spots, and villages.

Stable treatment effect and high effluent compliance rate

Adopting mature and improved AO/H2O biochemical process, it has strong resistance to impact load, can adapt to fluctuations in sewage volume and concentration, efficiently removes COD, BOD, ammonia nitrogen, total phosphorus, suspended solids, and stable effluent meets national standards, easily passing environmental protection acceptance.

Fully automatic operation with extremely low maintenance costs

Fully automated cyclic operation, no need for dedicated personnel on duty, only requiring regular simple inspections and minimal sludge discharge. The energy consumption of fans and pumps is low, and the consumption of consumables is minimal. Compared with traditional sewage treatment plants, labor and operation costs are significantly reduced.

Wide adaptability and flexible customization

Equipment specifications and process configurations can be personalized according to sewage volume, water quality concentration, discharge standards, and site conditions. Both large and small water volumes can be adapted, and it can be used for small-scale decentralized sewage treatment or multiple parallel units to achieve large-scale centralized treatment.

Application scenarios

Specially designed for decentralized domestic sewage treatment, suitable for various sewage discharge scenarios without centralized municipal pipelines. The core applications are as follows:

• Rural and village sewage treatment: Treatment of domestic sewage in rural settlements and concentrated residential areas to assist in rural environmental protection transformation;
• Community sewage renovation: New residential areas, old residential areas, and villa areas require standard discharge of domestic wastewater purification;
• Supporting facilities for cultural and tourism attractions: tourist attractions, homestays, farmhouses, and domestic sewage treatment in mountain villages to protect the ecological water environment;
• Temporary engineering camps: construction sites, temporary camps, highway service areas, toll stations for domestic sewage treatment;
• Public supporting sewage treatment: standard purification of domestic sewage in schools, hospitals, nursing homes, and township office buildings;
• Small scale industrial and commercial wastewater: pre-treatment and standard treatment of catering, small workshops, and mild organic wastewater.

Technical parameters

• Processing capacity of 5m ³/d-500m ³/d (can be customized with multiple parallel units)
• Core process improvement: AO/A2O anaerobic+anoxic+aerobic biochemical process
• The effluent standard can meet the first level A/second level discharge standards (customized according to needs)
• COD removal rate ≥ 95%
• Ammonia nitrogen removal rate ≥ 92%
• Operating mode: 24-hour fully automatic continuous operation, unmanned operation
• Installation methods include buried, surface, and semi buried options
• Box material: Carbon steel anti-corrosion/fiberglass material
• Working temperature 5 ℃ -45 ℃
• Low noise operation meets the environmental standards of the factory area

After sales guarantee

We provide one-stop customized solutions, on-site construction, installation and commissioning, environmental acceptance, and long-term operation and maintenance services for integrated domestic sewage treatment equipment, ensuring the stable and standard operation of the sewage system in all aspects

• Free on-site survey, water quality sampling and testing, customized treatment plan based on sewage volume, pollutant concentration, and local environmental standards;
• Prefabricated whole machine factory, on-site rapid construction and installation, pipeline docking, bacterial culture and debugging, and quick production up to standard;
• One year warranty for the entire machine, special warranty for core components such as fans, water pumps, electronic control systems, and enclosures, and lifetime technical support;
• 24-hour after-sales response, remote troubleshooting of operational faults and substandard water quality issues, and on-site maintenance and operation by nearby engineers;
• Lifetime provision of value-added services such as strain supplementation, filler replacement, equipment maintenance, process upgrades, and environmental acceptance assistance.