VA TECH WABAG GmbH products

Industry needs water of different qualities for production purposes. The demands with regard to the standard and purity of the water range from simple, low-quality washing water, to pure boiler-feed water for steam production. The public drinking water network can be used as source of raw water, along with ground- and surface water.

Urban local bodies in emerging economies are not cash rich. To ensure maximum returns on investment in wastewater treatment and increased life of a project, a scientific approach is required for the biological treatment process. This is where “power-neutral” STPs pave the way forward. Sustainability of the treatment process is crucial and it dependent upon constant and assured supply of power.

The discussions regarding micro-pollutants, which are substances that occur in very low concentrations (ng/l to μg/l) in water, first commenced around 2000. Owing to increasing industrialisation, population density and medication use, a growing number of micropollutants such as hormoneactive (endocrine) and pharmaceutical substances, chemicals and pesticides are entering our eco-systems. Such micropollutants are found not only in municipal wastewater but even in groundwater at some places.

In connection with global discharge requirements, one of the major changes is the shift to nutrient removal (nitrogen and phosphorus) to avert eutrophication. A traditional approach for nutrient removal will mean a doubling of the existing energy used to treat wastewater and a reduction in the potential gas production from the digestion of biological sludge.

Recycling and reuse augurs well for the environment as well as for industries. By setting up reuse and recycling systems, the limited freshwater supply can be better prioritised. With focus on municipal industrial tie ups, cash-strapped municipalities will stand to gain from reuse by means of water purchase agreements.