Alkaline Wastewater Neutralisation

The use of CO₂ eliminates the risks and dangers of handling caustic, corrosive and hazardous substances.

CO₂ is dosed fully automatically. The buffer capacity enables simple and precise adjustment of the pH-value. Overdosing is practically impossible.

Salts dissolved in surface water with low hardness (buffer capacity) can lead to corrosion processes that can damage pipes and fittings.
By adjusting the lime-carbonic acid balance, material-protecting cover layers can be built up to prevent these processes.

Nippon Gases' neutralization technology offers a high degree of operational safety, especially when a biological treatment stage is installed downstream of the neutralization process.
and maintaining the pH value is a prerequisite for maintaining the biological purification performance.

Comparatively low consumption quantities and operating costs as well as low investments are decisive for the economic advantage of using CO₂ as a neutralizing agent.

No inorganic salts that require monitoring are formed through the use of CO₂. CO₂ is also characterized by its uncomplicated handling and simple storage or stockpiling. Furthermore, recovered CO₂ can be reused, thus avoiding emissions.