Theunis Coetzer

Theunis Coetzer is the Managing Director of SewTreat, a leader in innovative water and wastewater treatment solutions across Africa. With expertise in designing sustainable onsite water management systems, he drives SewTreat’s mission to deliver eco-friendly, modular wastewater treatment plants. SewTreat's proprietary bacterial technology transforms wastewater into clean, odorless water, meeting the unique challenges of the African market with reliable, field-proven solutions.

Borehole water treatment plant 1

Borehole Water Treatment Plant

Remote Borehole Water Treatment Plant – SewTreat Containerized Solution Why Remote Borehole Water Supplies Require Dedicated Treatment Many farms, lodges, and rural estates depend on boreholes for drinking, irrigation, and livestock use. However, borehole water often contains iron, manganese, salts, and microbial contaminants. These can stain clothing and appliances, cause metallic taste, clog equipment, or […]

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Containerized water treatment plant for resorts 1

Containerized water treatment plant for resorts

Containerized Water Treatment Plants for Resorts & Wine Estates Why Resorts & Wine Estates Require Reliable Water Systems Resorts and wine estates depend heavily on consistent, high-quality water for accommodation services, wine production, landscaping, pools, and guest experiences. Yet these properties often face aging municipal infrastructure, seasonal supply interruptions, and rising utility costs, all of

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Ultrafiltration system for beverage manufacturing 1

Ultrafiltration system for beverage manufacturing

Achieving Beverage-Grade Water with SewTreat’s Containerized UF Systems Why Beverage Manufacturers Need Reliable Water Treatment In beverage and FMCG production, consistent, highquality water is essential for product safety, taste, shelf life, and regulatory compliance. Yet many plants rely on municipal supplies that vary in quality, experience occasional shutdowns, and incur rising costs. By deploying a

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Agricultural Water Treatment Plant 2

Agricultural Water Treatment Plant

Ensuring Agricultural Water Security with a SewTreat Agricultural Water Treatment Plant Access to clean, reliable water is critical to modern agriculture. From irrigation to livestock hydration and food processing, every part of the value chain depends on water. Yet across many agricultural regions, water supply is inconsistent due to drought, infrastructure failures, or increasing demand.

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wastewater treatment plant south africa

Wastewater treatment plant south africa key to water security

Wastewater Treatment Plant South Africa: A Solution to Water Scarcity South Africa’s water crisis threatens communities, businesses, and ecosystems, with 60% of the country’s rivers overexploited (Water Research Commission, 2024). A wastewater treatment plant in South Africa offers a sustainable way to recycle sewage and wastewater into safe, usable water. Sewtreat, a leader among water

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Sustainable Water and Sanitation South Africa Bourkes Luck

Sustainable Water and Sanitation South Africa Bourkes Luck

Water and Sanitation South Africa: Sustainable Solutions at Bourke’s Luck Potholes In South Africa, where water scarcity threatens ecosystems and economies, water and sanitation in South Africa are critical for sustainability. Sewtreat’s innovative biological wastewater treatment plant at Bourke’s Luck Potholes in Mpumalanga has transformed sanitation for this world-renowned tourist attraction, protecting the Blyde River.

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water treatment plant in cape town one and only resort

Water Treatment Plant in Cape Town OneOnly Resort

Cape Town Water Treatment Plant: Saving Water and Costs at One & Only Resort Introduction In the face of Cape Town’s persistent water challenges, businesses are turning to innovative solutions to ensure sustainability and cost-effectiveness. At the luxurious One & Only Resort, Sewtreat has implemented state-of-the-art water treatment plants that are revolutionizing water management. These

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Pick n Pay Eastport Warehouse

Sustainable Water Management Pick n Pay

Sustainable Water Management: Sewtreat’s Breakthrough at Pick n Pay Eastport Water scarcity and rising costs are pressing challenges for businesses across South Africa. Sewtreat, a leader in sustainable water management since 2016, is transforming how commercial facilities secure their water supply. Our innovative project at the Pick n Pay Eastport Logistics Park near O.R. Tambo

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Sewtreat Process

Water Security

Water Security: The Next Big Thing Water security is becoming an increasingly critical issue in urban areas around the world, and South Africa is no exception. With aging infrastructure and rapidly growing populations, cities like Cape Town, Johannesburg and Ethekweni are struggling to meet the water demands of their residents and businesses. Frequent water interruptions

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