Welcome to Aquest Colsen

Specialists in Water Treatment & Environmental Services

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Aquest Colsen is part of the Colsen group of companies. Our world-wide business scope covers technology developments, installations delivery and products & services in the fields of water treatment, sustainable energy and environmental protection. 

With our expertise and technology developments, we design and deliver an integral, customized and sustainable package for our clients, which combines minimal costs and ecological footprint with maximal environmental efficiency and profit. As a leading developer of innovative technologies, the Colsen group has the ambition to pursue her position at the leading edge of environmental sustainability.With our presence both in the Netherlands and South Africa, we aim to provide you with the best of the Dutch water knowledge and engineering services, combined with our local South African sector expertise and service capabilities.

Products & Services

We offer water treatment technology together with nutrient recovery & waste to energy solutions