The use of sodium hypochlorite generator in sewage plant
Sodium hypochlorite generator is a device that uses electrolytic brine to prepare and produce sodium hypochlorite solution. The sodium hypochlorite solution generated by electrolysis has the following uses in sewage plants:
1. After the primary or secondary treatment of urban sewage, the water quality is improved, and the bacterial content is also greatly reduced, but the absolute value is still high, and there is the possibility of pathogenic bacteria, so the sewage should be disinfected before discharge. The sodium hypochlorite solution produced by the sodium hypochlorite generator can be put into water for disinfection, killing microorganisms in the water, and making the water quality in line with the country.
2. The sodium hypochlorite solution produced by the sodium hypochlorite generator can also be used to reduce the ammonia nitrogen and COD in the sewage.
3. The sodium hypochlorite solution produced by the sodium hypochlorite generator can also be used to clean hollow fiber membranes for sewage treatment.
The principle of reducing ammonia nitrogen with sodium hypochlorite solution
The reaction process of sodium hypochlorite and ammonia nitrogen is realized by the oxidation of ammonia by hypochlorite to nitrogen. Considering the valence, one molecule of sodium hypochlorite can be hydrolyzed into one molecule of hypochlorite. Chlorine is positively one-valent, and the nitrogen in ammonia is negatively three-valent, hypochlorite The acid radical becomes negative one valence after oxidation, and the nitrogen in ammonia becomes zero valence.
Cl: +1 → -1, the valence state changes to 2,
N: -3 → 0, the valence state changes to 3,
That is to say, three molecules of sodium hypochlorite (molecular weight 74.5) can oxidize two molecules of ammonia nitrogen (N formula weight 14) into nitrogen, thereby reducing the content of ammonia nitrogen in sewage.
Advantages of Ou Rui brand RN type sodium hypochlorite generator
1. The equipment works stably and has a high degree of automation.
2. The operating cost of the equipment is low. For every kilogram of effective chlorine produced, 3.2 kilograms of salt and 5 kWh of electricity are consumed.
3. Perfect after-sales service system to provide customers with thoughtful service.
