Sewage plants need to control the value of ammonia nitrogen, mainly to protect the environment and human health. The discharge of sewage with high ammonia nitrogen content into the natural environment will lead to problems such as eutrophication of water body and excessive algae reproduction, which will seriously affect the survival of aquatic organisms and the stability of water quality. At the same time, sewage with high ammonia nitrogen content will also pose a threat to human health. For example, excessive ammonia nitrogen content in drinking water can cause liver diseases and nervous system diseases. The DUC2-NH model ammonia nitrogen analyzer can be connected with a digital ammonia nitrogen sensor to realize real-time online monitoring of the ammonia nitrogen value of the water quality. The ammonia nitrogen analyzer has 2 SPST relays, which can be connected to the device to control the ammonia nitrogen value. Usually sewage plants can u…

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