Device for efficiently treating domestic sewage by utilizing ozone and treatment method

Abstract

The invention discloses a device for efficiently treating domestic sewage by utilizing ozone. The device comprises an aeration chamber and a main reaction chamber; an aeration device is arranged in the aeration chamber, an ozone gas generating device is arranged on the outer side of the aeration chamber, the ozone gas generating device is connected with the aeration device through an ozone conveying pipe, and a first exhaust pipeline and an exhaust safety valve are arranged on the aeration chamber; a bracket is arranged in the main reaction chamber, a sieve plate is arranged on the bracket, reaction promoting filler is stacked on the sieve plate, and a second exhaust pipeline and a gas-liquid separation device are arranged on the main reaction chamber; a U-shaped pipeline is arranged between the aeration chamber and the main reaction chamber, and an ultraviolet irradiation device is arranged on the U-shaped pipeline; a lower pipeline is arranged between the aeration chamber and the lower side of the main reaction chamber and is provided with a water pump, a water inlet branch pipe, a water outlet branch pipe, a water inlet valve and a water outlet valve. The device has the advantages of long contact time of ozone and sewage, high utilization rate, simple manufacturing requirement of the whole equipment, lower cost, lower energy consumption and higher treatment rate.

Description

technical field [0001] The invention relates to a device and a treatment method for efficiently treating domestic sewage by utilizing ozone. Background technique [0002] The treatment of domestic sewage generally combines three major technical means of biodegradation, chemical and physical filtration. Among them, using ozone gas to decolorize domestic sewage, deodorize, disinfect and decompose organic substances in water is a very mature traditional process. The biggest benefit of ozone gas is environmental protection, because ozone gas will naturally decompose into oxygen in the atmosphere, and the oxidation activity brought by ozone gas is stronger than that of other common disinfection products, such as hydrogen peroxide, so it has a superior ability to purify sewage condition. However, since the artificially generated ozone gas needs to consume electric energy, at the same time, how to bring the ozone gas into the domestic sewage and make the ozone molecules and the h...

AI Technical Summary

Problems solved by technology

This method has two disadvantages: 1. The equipment investment cost is high, and the energy consumption of these equipment is very large

2. The flow rate of gas injection is directly proportional to the diameter of the bubble. When the diameter of the bubble becomes smaller, the amount of gas injected is also smaller. Therefore, when the total amount of reacting substances decreases, the reaction efficiency will naturally decrease.

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