Wastewater treatment from flue gas desulphurisation

The coal used and the operation mode of the flue gas washing process are decisive for the quality of the waste water from the flue gas desulphurisation of coal-fired power plants. The requirements for waste water treatment therefore depend on the location of the plant. The treatment focuses on the removal of sulphates and heavy metals. To this end, H+E employs multi-stage precipitation processes, sedimentation stages and selective ion exchangers. Further treatment steps may be necessary depending on the quality criteria that the discharged waste water must meet. Evaporation systems and drying systems are examples of these steps.

Under certain conditions, only waste-water-free treatment concepts can be used, so-called ZLD concepts. All H+E plants have one characteristic in common: they are individually tailored to the requirements of the respective power plant location.

 

Our references

Germany 2023

Process water treatment at a chemical site rich in tradition

InfraLeuna GmbH and its associated companies are the owners and operators of the infrastructure facilities at Leuna, a chemical site rich in tradition. InfraLeuna GmbH pursues the goal of shaping and developing the framework conditions for the production operations of its customers at the site. This involves the supply of necessary media such as energy and water, disposal through the central wastewater treatment plant and analytical services in its modern laboratory.

Austria 2020

High-End UPW Plant for the Semi-Conductor Industry

The task was to implement a high-end ultrapure water plant for the treatment of well water for a well-known semiconductor manufacturer in Central Europe.

Estland 2020

Award Winner: AS Estonian Cell

In 2020, AS Estonian Cell was declared the winner of the competition ”Environmentally Friendly Company of the Year in Estonia“. With H+E components Estonian Cell came a significant step closer to its goal of becoming the best producer of pulp in the world.

Malaysia 2014

Offshore High Pressure High Performance Produced Water Treatment Package

A high-pressure high-efficiency produced water treatment system of Petronas an Sapura Energy designed to meet strict overboard discharge limits while accommodating onerous space and weight constraints imposed by offshore design requirements.

Denmark 2014

Oily Water Treatment Offshore

For an oil rig, Ørsted needed a treatment plant for treating oily water from various sources. Ørsted, Denmark, is the world market leader in offshore wind energy and offers innovative energy solutions for public utilities and industry.

For an oil rig, Ørsted needed an oily water treatment plant to treat water from various sources to remove oil down to <10 mg/l and 95% of solids >100 μm, making the water suitable for discharge into the sea. This application was a particular challenge due to the small droplet diameters and emulsified oils from the various sources. H+E met the challenge by providing their coalescer design with a solids removal system upstream of the coalescer technology.

Germany 2012

New AOP application in a German paper mill

MD Papier GmbH, which belongs to the UPM Group, is one of Germany’s largest manufacturers of high-quality magazine papers. Due to a shift of production to higher-grade and higher bleached products, the percentage of persistent, non-biodegradable wastewater constituents has increased.