120 T/D A²/O Integrated Sewage Treatment Equipment

120 T/D A²/O Integrated Sewage Treatment Equipment

Product Information

  • Name : 120 T/D A²/O Integrated Sewage Treatment Equipment
  • SKU : BLT-263
  • Category : integrated-wastewater-treatment-equipment

The 120-ton/day A²/O integrated rural domestic sewage treatment equipment is a horizontal containerized complete set of equipment. It adopts the mature A²/O biological treatment process and integrates equalization and homogenization tank, anaerobic tank, anoxic tank, aerobic biochemical tank, sludge sedimentation, and sludge return unit. The equipment supports above-ground installation, semi-underground, or fully underground layout. It has a compact structure, occupies less space, and is equipped with a fully automatic control system, specifically adapted for small-scale centralized pollution sources of rural and town domestic sewage. The equipment can effectively degrade pollutants such as CODcr, ammonia nitrogen, total phosphorus, and SS. The effluent is stable and meets the discharge standards, which can be directly discharged or recycled for use in scenarios such as green irrigation and farmland irrigation for reclaimed water.

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120 T/D A²/O Integrated Sewage Treatment Equipment

Working Principle Rural domestic sewage first flows into a regulation and equalization tank to stabilize water quality and flow, and mitigate the impact of influent load. The sewage then sequentially passes through anaerobic, anoxic, and aerobic biochemical zones. Specialized microbial communities degrade organic pollutants in the sewage, while simultaneously completing nitrification, denitrification for nitrogen removal, and biological phosphorus removal. The biochemical mixed liquor enters a sedimentation unit, where gravity separation achieves solid-liquid separation. A portion of the settled sludge is returned to the front-end biochemical tank to maintain sludge concentration, and excess sludge is periodically discharged. The entire system is equipped with an aeration system, sludge return device, sludge discharge unit, and PLC automatic control system, enabling 24-hour unattended continuous operation to ensure long-term stable treatment effects. Application Fields Rural Human Settlement Improvement: Concentrated domestic sewage treatment in administrative villages and natural villages, including integrated treatment of toilet blackwater and domestic graywater. Township Supporting Projects: Purification and treatment of domestic sewage from rural guesthouses, farmhouses, and rural residential clusters. Tourism and Leisure Facilities: Decentralized domestic sewage treatment at rural scenic areas, camping bases, and resorts. Rural Public Infrastructure: Sewage treatment for public buildings such as township health centers, village Party-mass service centers, and rural schools. Reclaimed Water Reuse Projects: Treated effluent meeting standards can be reused for land irrigation, factory greening, and road dust suppression and watering.