Linde eco-friendly water treatment process neutralizes alkalinity without mineral acids
The SOLVOCARB process from Linde North America is a fast and economical way for process industries to neutralize alkaline wastewater with a high degree of control using carbon dioxide (CO2). The SOLVOCARB process injects the inert gas into the process wastewater, and includes Linde CO2 gas supply and metering system. When dissolved in water, CO2 forms carbonic acid to quickly reduce pH to appropriate levels for discharge. The process is also useful for reverse osmosis (RO) and remineralization systems.
Carbon dioxide is an inert gas and mild buffering agent, so SOLVOCARB provides a much safer alternative to hazardous and corrosive mineral acid treatments, such as sulfuric acid (H2SO4). With mineral acids, a few drops too many can create pH excursions which risk discharge fines from the water treatment authority or U.S. Environmental Protection Agency (EPA).