Buried Integrated Wastewater Treatment Equipment Introduction
Buried integrated Wastewater treatment equipment is an efficient water treatment device that integrates regulation, anaerobic, aerobic, sedimentation, disinfection and other processes into one compact tank and is installed underground. Compared with traditional civil Wastewater treatment systems, it features smaller footprint, lower noise, no peculiar odor and faster construction. It is the preferred choice for decentralized Wastewater treatment in rural areas, communities, hospitals, schools and factories. The main body is usually made of anti-corrosion carbon steel, 304/316L stainless steel or glass fiber reinforced plastic, featuring solid structure, durability and long-term underground operation.
Working Principle of Buried Integrated Wastewater Treatment Equipment
Centering on microbial degradation, the equipment completes Wastewater purification through four stages: Pretreatment — Biochemical Treatment — Advanced Treatment — Disinfection & Sterilization.
Pretreatment Stage
After entering the equipment, raw water first passes through the grille well to intercept large impurities such as hair, paper scraps and residues. Then it flows into the regulating tank to balance water volume and quality and stabilize the subsequent biochemical system.
Anaerobic Treatment Stage
In an oxygen-free environment, anaerobic microorganisms decompose macromolecular organic matter into small molecular substances and complete preliminary denitrification and dephosphorization.
Aerobic Treatment Stage
The aeration system supplies oxygen. Aerobic microorganisms adsorb and decompose a large amount of COD, BOD, ammonia nitrogen and other pollutants, rapidly degrading organic matter into carbon dioxide and water.
Secondary Sedimentation Tank & Mud-Water Separation
Mixed liquid flows into the sedimentation tank; sludge settles down with partial reflux, and the supernatant enters the disinfection process.
Disinfection & Sterilization
Ultraviolet rays, chlorine dioxide, sodium hypochlorite and other methods are adopted to thoroughly kill bacteria and viruses, ensuring qualified effluent discharge.
Advantages of Buried Integrated Wastewater Treatment Equipment
• Buried installation saves ground space: The equipment is placed underground, and the upper area can be used for greening, parking or square construction without affecting landscape aesthetics.
• Integrated design with small footprint: Saves 50%-70% land compared with traditional processes, ideal for urban areas with limited space.
• Fully enclosed operation with low noise and no odor: Sealed structure prevents leakage and odor return; low operating noise will not disturb the surrounding living environment.
• High degree of automation: PLC intelligent control realizes automatic aeration, automatic dosing, automatic sludge discharge and fault alarm, supporting unattended operation.
• Stable treatment effect: High removal rate of COD, BOD, ammonia nitrogen and total phosphorus; effluent steadily meets Class A discharge standard.
• Low investment cost and short construction period: No need for civil tank construction; the equipment is factory-finished and can be installed and put into operation within 3-10 days.
• Corrosion resistance and long service life: Anti-corrosion treated main body ensures a service life of 15-20 years.
• Low operating cost and energy saving: High-efficiency aeration system and energy-saving pumps reduce comprehensive energy consumption by 30%-40% compared with traditional processes.
Application Fields of Buried Integrated Wastewater Treatment Equipment
Rural domestic Wastewater treatment
Urban communities, resettlement housing and old communities
Wastewater treatment for hospitals, clinics and health centers
Schools, office buildings and commercial towers
Scenic spots, highway service areas and stations
Hotels, catering restaurants and farm stays
Military barracks and construction site living quarters
Pretreatment for breeding and slaughterhouse wastewater
Wastewater treatment for food processing plants and small factories
Beautiful countryside and new rural construction projects
Process Flow of Buried Integrated Wastewater Treatment Equipment
Buried Integrated Wastewater Treatment Equipment Process Flow Chart
General Process (Class A Discharge Standard)
Raw Water → Grille Well → Regulating Tank → Anaerobic Tank → Anoxic Tank → Aerobic Tank → Secondary Sedimentation Tank → Disinfection Tank → Up-to-Standard Discharge
MBR Membrane Process (Higher Water Quality & Reusable)
Raw Water → Pretreatment → Anaerobic → Aerobic → MBR Membrane Tank → Disinfection → Reclaimed Water Reuse
The MBR membrane process can replace the secondary sedimentation tank, delivering clearer effluent with lower conductivity. The treated water can be reused for greening, toilet flushing, road cleaning and other scenarios.
Xi'an DIEN Water Treatment specializes in the production of buried integrated Wastewater treatment equipment. With years of engineering experience, we provide one-stop services including design, production, installation, commissioning and after-sales support. Our equipment features high compliance rate, stable operation, reasonable price and comprehensive after-sales service, serving thousands of enterprises nationwide. Welcome to visit Xi'an DIEN Water Treatment Official Website for free scheme design, quotation, water quality testing and site survey services.
