Neutralization station deals with water waste created by production´s chemical processes. Gatema has automatic neutralization with capacity of 75 m³ a day. Water waste is pumped from accumulation tank into the assembly of three cascaded flow reactors. After this filtration the waste is drained into sedimentation reactor where sludge is sediment and separated water is drained into the sewerage. Sludge is pumped into the special reactor from where by air-membrane pump is pressed to hydraulic sludge presser. Neutralization station is equipped by recording flowmeter and water left the station through recording PH control probe.