Ammonia treatment
28 Apr 2005
Siemens has developed a new modular ammonia treatment system that removes high levels of dissolved ammonia from semiconductor industry wastewater.
Siemens Industrial Solutions and Services (I&S) Group has developed a new modular ammonia treatment system that removes high levels of dissolved ammonia from semiconductor industry wastewater.
The ammonium treatment system, which was developed by the I&S company USFilter (Warrendale, PA) reduces wastewater ammonia concentrations to below 20 mg/litre, while containing and eliminating 100% of air emissions.
The system has been designed to treat 600 cubic meters per day (100 gallons per minute) of industrial wastewater containing up to 10,000 mg/L of dissolved ammonia.
The modular design allows the user to ‘grow’ the treatment system in 80 cubic metre per day (15 gallon per minute) increments as production increases.
The waste ammonia is concentrated as 30 to 40% ammonium sulphate solution, which may be stored for periodic disposal off-site or further treated for use as fertilizer.
