Ammonia Stripping Tower

Product Pescription:Blow off method of stripping technology is based on the theory of NH3-N in wastewater: usually in the ammonium ion (NH4+) and ammonia (NH3) state balance exists (NH4++OH =NH3+H2O).

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Blow off method of stripping technology is based on the theory of NH3-N in waste water: usually in the ammonium ion (NH4+) and ammonia (NH3) state balance exists (NH4++OH =NH3+H2O).When PH is neutral, NH3-N mainly exists in the form of ammonium ion (NH4+).When the pH is alkaline, NH3-N mainly to free ammonia (NH3) state of existence.Blow off method in wastewater by adding alkali to alkaline, adjusting the pH of water, the wastewater NH4+ into NH3, and then the steam or air desorption, the NH3 of wastewater into the gas phase, the NH3-N removal from water.After stripping ammonia nitrogen in the waste water is generally kept within 120mg/L.Prevent the wind from the two pollution caused by nitrogen, generally after stripping ammonia absorption device settings (using acid liquid absorption), after absorption of the ammonia salts can be used as fertilizer for crops.Stripping technology for wastewater treatment of high concentration ammonia nitrogen, process conditions of pH = 10-11, blowing off time is 120min, gas water ratio is 2000-2500:1.

Stripping tower often adopts the countercurrent operation, column is provided with certain degree of filling, to increase the gas liquid mass transfer area in favor of ammonia from wastewater of desorption.Filler using polypropylene hollow balls.Wastewater was promoted to the top of the tower filler, filler and distributed to the entire surface, through the packing down stream, and gas reverse flow, the partial pressure of ammonia in air with ammonia removal increases, decreases with gas-liquid ratio.

The ammonia nitrogen stripping domestic most used mainly in the form of continuous stripping tower.Continuous stripping tower stripping method has high removal efficiency and less occupied area.