Chemical Industry

In a chemical plant, process water is required at numerous points: for heating or cooling, for the production of steam, as a solvent and reaction medium or simply for rinsing. That’s why every major chemical plant is located on a river. The water taken from river is usually pre-treated in a central plant to the desired process specification. As a rule, the water then only passes through the plant at one point. It is then treated directly in a central plant and returned to the river.

However, the pressure to conserve water as a resource is constantly increasing. Furthermore, companies are increasingly interested in keeping smaller amounts of toxic or non-degradable substances out of the environment. This is leading to a rethink: more and more often, our customers are placing orders for decentralised plants for the recycling of low-pollution flows and for the partial treatment of waste water. Our teams of experts adapt these special systems to the special features of the respective location. H+E uses its complete portfolio of chemical-physical, biological and thermal processes for pre-treatment and demineralised water, for the treatment of recyclable waste water and for the treatment of lightly and heavily polluted waste water streams.


„We need a quick service or an inventory and investigation of our equipment, which your company did not supply. Can you help us here?“


Our service department will examine and assess your plant – regardless of which supplier it comes from.

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We are expanding our production, which means that our process and wastewater amounts will increase and their qualities will change.

More Case Studies

Wastewater treatment to meet the most stringent requirements

Egypt, 2008

In Egypt, an anaerobic-aerobic waste water treatment plant operating in a sugar beet factory, meets the strictest limit values.

Successful expansion of a waste watertreatment plant

Germany, 2004

Significantly lower wastewater fees: a dairy in Bavaria achieved this goal thanks to H+E’s expansion of its existing wastewater treatment plant.

High-performance complete desalination

Great Britain, 2012

To increase the existing wastewater treatment plant’s performance, H+E implemented an anaerobic ANAFIT®.R2S reactor and a flotation plant at Farm Frites.