Underground Biological Wastewater Treatment Plant

Underground BWWTP Range

Our underground range is engineered to accommodate a broad spectrum of flows, from industrial scale to residential development applications.

These plants are designed with aesthetics in mind, constructed beneath the ground to allow seamless integration with the surrounding landscape through vegetation coverage.

They offer flexibility in construction, with options for complete civil engineering and construction or utilisation of fiberglass and LDPE tanks.

Product Overview

Standard Flow Range of 5 Kl to 5 Ml per day (larger plants can be designed on request).
Complete underground system.
Plants are mostly gravity fed, depending on invert levels and contour levels.
All mechanical equipment is installed in a secured control room.
System can operate without electricity for 48 hours ( dependent on whether plant is gravity fed).
Underground Biological Wastewater Treatment Plant
Underground BWWTP 2

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Why SewTreat?

With over 35 years of industry experience, SewTreat is a recognized leader in underground biological wastewater treatment solutions.

Regulatory Compliance: Meets both local and international wastewater treatment standards.

Sustainability: Reduces environmental impact through water reuse and efficient treatment.

Proven Track Record: Successfully implemented projects across Africa.

Tailored Solutions: Custom designs to meet unique site requirements.

Invest in a Sustainable Future

Choosing an underground biological wastewater treatment plant from SewTreat means investing in a sustainable, cost-effective, and reliable wastewater solution. These plants support water conservation, operational cost savings, and long-term environmental responsibility.

Get Started With SewTreat

Upgrade your wastewater treatment system today with SewTreat’s underground solutions. Contact our water engineers for expert advice and customized recommendations.

See our BWWTP containerised options, plastic tank products, the Sewpro BWWTP and our steeltank solutions. Read more on how our BWWTP plants work.

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