Municipal water supply and drainage

Keeping ozone at a concentration of 0.4mg/L in drinking water for 4 minutes can achieve disinfection purposes. In addition, ozone can also bring other benefits in drinking water treatment processes. Pre ozone treatment can enhance the clarification effect, avoid the conversion of organic matter into haloforms, and promote the death of microorganisms such as algae.

The pre ozone dosing system consists of an ozone gas distribution system, jet water pump unit, Y-shaped filter, water jet, jet water pipeline, jet aerator, ozone gas distribution pipeline, etc. Each pump/water jet system is fixed on a base, and the system should include the following basic components: booster pump, water jet (stainless steel 316L), and supporting instruments and valves.

The aeration tray aeration dosing method is used for dosing. One ozone contact tank, each divided into 2 compartments, with 3 points for each compartment, and a certain number of aeration discs installed every interval. Ozone gas is aerated through microporous aeration discs and reacts with water in the contact tank. The ozone dosage of each contact cell can be automatically adjusted according to the set value. Each dosing point is equipped with on-site flow meters, pressure gauges, and manual adjustment valves. The top of each ozone contact tank is equipped with safety valves and exhaust emission outlets. The exhaust gas in the pool is removed by the mist eliminator to remove water mist and droplets, and then enters the exhaust gas destructor reaction tank. The exhaust gas destructor uses heating catalysis to decompose ozone, and a total of 2 ozone exhaust gas destructors are installed on the top of the ozone contact pool. The outlet gas ozone concentration of the ozone exhaust destructor is less than 0.1ppm and directly discharged into the atmosphere.