Ammonia Treatment System

The temperature of ammonia gas, separated from the stripper by air diffusion, is increased up to a specified temperature for oxidative decomposition with a catalytic reactor. Heat after oxidative decomposition is used for air diffusion, which reduces running cost.

Description

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

System Flow

Application

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