China Drying Network News Juhua Co., Ltd. Fluoropolymer Division held a security experience sharing and security committee expansion meeting to conduct safety education for hidden dangers and accidents in the first half of the year for the teaching materials, according to the events, processes, and causes The four steps of analysis, rectification, and prevention measures are to analyze typical cases one by one and achieve the purpose of summing up experience, drawing lessons, and ensuring safety. At the same time, the results of learning safety benchmarking companies were also reported at the meeting. The three pilot units exchanged safety work experience. More than 70 people from the beginning of the business division and more than 70 people from the workshop (department) attended the event.
Ammonia
Ammonia nitrogen refers to nitrogen in the form of free ammonia (NH3) and ammonium ions (NH4+) in water.
Ammonia nitrogen is the main oxygen-consuming pollutant in the water, and its toxicity is closely related to the pH value and water temperature of the water.
In general, the higher the pH and water temperature, the stronger the toxicity, and the harm to fish is similar to nitrite.
Fish are more sensitive to ammonia nitrogen in water, and high ammonia nitrogen content will cause fish death.
0 mg/l-0.5 mg/l: Safe
1 mg/l: Stress
3 mg/l-6 mg/l: Risk
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