| 摘要 |
PROBLEM TO BE SOLVED: To provide an ammonia removal apparatus with a simple and low-cost apparatus configuration, which efficiently removes ammonia nitrogen in waste water without excessive addition of a chlorine agent.SOLUTION: An ammonia removal apparatus removes ammonia nitrogen in water to be processed by break-point chlorination. The ammonia removal apparatus includes chlorine agent addition means which adds a chlorine agent to a reaction tank for accommodating water to be processed, gas-liquid separation means which separates gas components in the sampled water to be processed from the reaction tank, ammonia gas detection means which detects the ammonia gas amount in the gas components separated by the gas-liquid separation means, and control means which controls the addition amount at the chlorine agent addition means on the basis of detection value of the ammonia gas detection means. |
