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Ammonia Separation and Recovery Process

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Ammonia Separation and Recovery Process

  • Ammonia Separation and Recovery Process
  • Concentration, acid, distillation technology

Ammonia gas separated by the stripper is condensed, and then recovered as ammonia liquid. Moreover, it is possible to produce ammonium sulfate, ammonium chloride, or ammonium bicarbonate.

Ammonia in wastewater is nitrified in the water environment by microorganisms and changes into nitrate-nitrogen or nitrite-nitrogen that adversely affects human beings.
In 2004, the 5th Water Quality Immutable Weight Control was enforced, which started control on nitrogen and phosphorus as substances for eutrophication. The control will be stricter year by year.
We have marketed high-performance packing for many years, and based on our expertise of packing, we have developed and marketed distillation separation equipment. Moreover, to decompose and treat separated ammonia, we provide separation recovery equipment and separation decomposition equipment, incorporating the catalyst technology of Nippon Shokubai.
 
Ammonia gas separated by the stripper is condensed, and then recovered as ammonia liquid. Moreover, it is possible to produce ammonium sulfate, ammonium chloride, or ammonium bicarbonate.

Semiconductor,LCD / Steel,Metal,Paper,Inorganic Chemical

Features

・Recovers high-purity ammonium liquid
・Produes ammonia compounds from recovered ammonium liquid

System Flow

System Flow

Ammonia Stripping Technology

Ammonia in wastewater is present as ion where pH is neutral. Ammonia is separated as gas from wastewater by raising pH of water with alkaline addition. Separation is enhanced by increasing the operating temperature of the tower
 
Features
・Applies to wastewater containing ammonia in a wide range from low to high concentration.
・Provides either ammonia recovery process or ammonia decomposition process, determined by the amount of ammonia contained in steam at top of the stripper, or benefits of its recovery
・Decreases ammonia in wastewater to a level below the regulatory concentration level
・Applies energy-savings by using effluent water from the base of the stripper tower for heating up wastewater

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