Industrial gases such as hydrogen, nitrogen, and oxygen are key feedstocks for the petrochemical and agrochemical industries. They are used in the production of polymers, aromatics, ammonia, and various commodity and specialty chemicals. The processes involved in their separation, purification, or synthesis are complex and require high-quality water for cooling and steam generation. These processes, in turn, generate difficult-to-treat wastewater that requires specialized treatment to comply with discharge regulations.
Case studies
Mobile demineralization reduces refinery costs
Evoqua helps a Northern California refinery meet boiler feedwater silica specifications
A refinery in Northern California was unable to meet its desired boiler feed water silica specifications on a consistent basis. The higher silica levels led to an excessive blow down requirement in the boiler system. The higher blow down rates were significantly affecting the refinery's water, chemical, and natural gas costs.
Wastewater ion exchange system removes cyanide from manufactured gas plant site
Xylem helps east coast utility remove contamination and comply with discharge standards
A large east coast utility contacted Xylem for assistance in treating cyanide contamination in their groundwater. The contamination occurred as a result of production by a former manufactured gas plant (MGP) which previously resided at the location.