Industrial waste gas treatment stench,

deodorant equipment - ozone oxidation systems

First, the stench of ozone oxidation technology principle

Foul gas mainly composed of ammonia, hydrogen sulfide, mercaptans, sulfides, phenols, amines, amides, indole, alkanes, alkenes, alkynes, aromatic hydrocarbons, alcohols, aldehydes, ketones and organic acids and organic compounds (VOC), inorganic, wherein the amount of ammonia, followed by the hydrogen sulfide (hydrogen sulfide odor contributed the most), the design of these components are considered part of the key. Comprehensive comparative study of acid absorption, bases and neutral absorption absorption absorption characteristics of the compound according to the above characteristics of the exhaust gas, the use of ozone (oxidation) chemical absorption process as waste pretreatment process, ozone is a potent oxidant neutral chemical absorption and goes pollution, oxidation reduction of oxygen (02) and water (H2O), after decomposition gases, low volatility, cracking malodorous gases that was free state ozone oxidation of pollutants combine to form molecules and small molecules harmless or less harmful compounds such as CO2, H2O and so on. Chemical absorption part of the application concentration of 1 to 10% (mass) of ozone gas, if the water temperature can be appropriately added to improve the ozone oxidation. Ozone oxidation of ammonia removal by 95% and 60% of hydrogen sulfide removal. The chemical absorption (oxidation) after the stench of exhaust gas, ammonia, hydrogen sulfide lot lower, then the stench of exhaust gas is low concentrations of hydrogen sulfide and organic components, through a lot of data collection and analysis, in order to further reduce the low concentration of malodorous odor , while adsorption method can also be used for further processing foul gas is an effective method. Only need to set the appropriate exhaust pipes and exhaust impetus to malodorous gases through the deodorizing device exploded purification, without adding any substance involved in a chemical reaction. Odor of ozone in water is extremely effective. Water pollution caused by industrial odor substances in addition to outside, can also cause soil microbial smelly, musty, smelly and other algae. According to microbiological research, water aerobic actinomycetes to generate musty; due actinomycetes produce antibiotics that bacteria die and stink. The results show that emit smelly substance is water soil microbial metabolites, named geosmin (C 12 H 18 O 22), a compound known issue moldiness mucidune (C 12 H 18 O 2), odor, etc., according to the actual Add the amount of experience 1m3/min odor, ozone dosage: 1g / h, the odor of 50 degrees can become odorless, adding in a small experimental device 10ppm ozone, can smell from 20 down to 0 degrees. There are tests proved below 25 degrees in the removal of odor, ozone injection rate of 0.1-1.5 ppm. Processing capabilities and malodorous gas composition and concentration of odorous gases have a great relationship, depending on the desired device processing power the average concentration of malodorous gases settings, and the stench of the wind calculation, configuration, most equipment dosing capacity to choose the best configuration stench of ozone equipment system.

By the above method can efficiently remove volatile organic compounds (VOC), inorganic substances, hydrogen sulfide, ammonia, mercaptans and other major pollutants, and various odor, deodorization efficiency up to 99%, much higher than the deodorizing effect National 1993 emission standards promulgated by the stench (GB14554-93).

Second, the stench of ozone oxidation equipment components

Quality system consists of an ozone oxidation air compressor, 1 cold and dry, a Taiwan dryers and filters consisting of air pretreatment system.

The ozonation system is equipped with a dedicated power generating unit and control system.

The principle is the gap discharge ozone preparation method, leaving the power supply unit provides high voltage electric field generator air flowing through this field. Ozone generator inside the tank itself and the ground electrode of the discharge chamber, high voltage applied to the insulator of the metal electrode, a metal electrode coated with a special external insulating material, so that the insulating material layer and the ground electrode body ozone generator high voltage electric field is formed between the oxygen passes through the silent discharge into ozone.

Oxygen conversion of the energy released during the ozone, the generator must be grounded electrode cooling water outside of the pipe to facilitate heat away ozone conversion efficiency, the cooling water is very important for the preparation of ozone.

Ozone system features:

The most important part of the ozone generator, ozone discharge.

Ozone discharge tube and mechanical strength of the electrical parameters that affect the ozone generation efficiency, reliability and flexibility of the main factors.

Establish environmental companies in BNP Rich Cannon famous ozone system design and technical capabilities of the non-glass insulating materials technology ensures ozone leading position in the domestic market, the ozone system is equipped with a non-glass insulation.

Each discharge tubes in the factory before being run through three times the voltage tests, and again before using the system installation through the same tests. Breakdown voltage is higher than three times the maximum operating voltage.

Hydroxide crystal structure discharge technology and glass dielectric discharge technology comparison:

Hydroxide crystal structure than glass discharge tube discharge technology has the following advantages.

Simple installation

Completely enclosed installation, no internal dust accumulation

Mechanical strength and thermal shock

Corrosion resistance as nitrate

Ability to withstand high voltage damage on a large

Before shipment by high multiple voltage test

Hydroxide crystal structure of heat-and cold-resistant mutations Performance Testing: hydroxide crystal structure heated to red-hot state, quickly place the cooling water (15 - 20 ℃) ​​does not crack does not burst, intact.

Hydroxide crystal structure penetration resistance, resistance to thermal and mechanical strength of mutation is much higher my company's third-generation products of high precision ceramic and enamel structure.

Introduction discharge chamber

Ozone generator has the following components:

- Import and distribution of gas source chamber;

- High pressure gas source distribution installed in the entrance distribution chamber for ozone unit provides power;

- Generator tank, ozone discharge tube mounted on the inside;

- Ozone outlet collection chamber;

- Part of the cooling water, the cooling water discharge amount of the stainless steel outside the space between the tank and the generator;

- Cooling inlet and outlet pipes;

Between the generator tank and discharge through both ends sealed stainless steel welded pipe isolation.

- Discharge tube mounted in a stainless steel tube;

- Stainless steel tank as a ground electrode;

- Each one composed of stainless steel tanks with ozone discharge hereinafter called the "discharge unit";

Part can not produce ozone released into heat energy, must be "Discharge Unit" adequate flow rate flowing through the outer wall of the cooling water.

An ozone generator must provide the correct voltage and frequency of the power generating ozone.

BNP ozone generator running at 600-1000HZ 4000V voltage and frequency conditions.

Selection of this parameter is not only to provide optimal conditions for efficient to ozone, but also because of safe and reliable design ideas.

Discharge voltage of 4000V power greatly reduces the impact to ensure the longer life of the discharge tube.

Generator is designed to work 24 hours, each associated with pre-installed instruments and valves, pressure relief valve on each generator is formulated.

Discharge body:

The discharge chamber is the ozone generator according to the required ozone production to the design, while the output is based on a single discharge electrode in a certain frequency, voltage conditions, production of ozone produced by the sum to determine. Therefore, the discharge electrode is the fundamental basis for the discharge chamber design, but in the country, the discharge electrode technology is a large ozone generator manufacturing technology bottlenecks.

Discharge chamber with patented non-ozone quartz glass discharge structure. Quartz ozone discharge structure, large output, high concentrations of ozone, to the greatest degree of play power and cooling systems function, is a large production of high concentration ozone generator key.

Discharge chamber tank:

Stainless steel tank system of the discharge chamber, a discharge body arranged in the inside of a honeycomb, to ensure the normal discharge chamber as a whole, reliable and efficient work.

Ozone power supply unit

Ozone generator supply unit features:

Power supply unit converting ozone generator voltage and frequency to the conventional ozone generator to produce ozone efficiently the frequency and voltage.

Each ozone generator by matching the high-frequency power supply unit adjusts the ozone concentration or changes the control constant to adjust the concentration of ozone in the ozone generation amount.

High-voltage power supply unit output through a special high-pressure high-voltage cables and special connector to the ozone generator inlet chamber and a high pressure gas source electrodes.

- Electrical components of the safety and reliability of current and voltage by a security guarantee.

- BNP ozone provides a discharge cell is the voltage of 4000V.

- BNP by adjusting the current to control the ozone generation amount, compared to other methods more efficient and safe production of ozone.

The main power supply unit is composed of:

- AC contactor

- Line Reactors

- Full-controlled rectifier device

- Reactor

- Inverter

- High-voltage transformer

- Instrumentation and other control components

- Controlled rectifier controller provides full-controlled rectifier thyristor controlled DC current regulator

- Adjust the DC inverter control convert single frequency AC power

- Step-up transformer of the inverter into the high-frequency high-frequency power supply

Overvoltage and overcurrent protection circuit has been designed to secure to the rectifier and inverter control circuit it.

Overall system consisting see the "ozone system flow."

Using superior product performance, high efficiency and reliable operation of air compressors, compressed gas to the filter by the competent, by the vortex flowmeter and pressure transmitters detect air flow and air pressure, the refrigeration dryer for shallow in addition to water, and then by the addition of water filtered into the adsorption dryer depth in addition to water, so that the required air dew point -20 ℃, and then the dust filter allows dust particles less than 1μm, become qualified raw gas source.

Passing through the raw gas supply valve into the ozone generator, the ozone generator inside the high-frequency high-voltage, part of the oxygen in the air ionized into ozone, the product gas is ozonized gas, the flow rate, the pressure regulating valve adjustment and vorticity flowmeters, pressure transmitters and temperature transmitters detect flow, pressure, temperature, after the ozone generated by the ozone generator by vortex and the manifold pressure transmitter to detect total flow and pressure into contact with ozone oxidation after reactor (if necessary, please call us to request).

Contact oxidation reaction of the ozone gas into the tank, through a pipe into the diffusion chamber of each cell catheter, and finally through the ozone aeration rod dedicated to the oxidation reaction vessel proliferation, odor and reaction vessel for contact oxidation reaction, oxidation after the gas from the top of the tank through the collector aggregated leaving the reaction tank, bucket again into the ozone catalytic reaction buffer to achieve the national emission standards, through the air duct to the atmosphere.

Third, the application areas:

Food industry: fish processing plants, food processing plants, meat processing plants, slaughterhouses, poultry feed mills, paper mills, sewage treatment plants, waste transfer stations, waste treatment and other organic and inorganic deodorizing malodorous gases purification.

Chemical industry: oil refineries, rubber factories, tanneries, printing, chemical plants, and Western pharmaceutical, metal foundries, plastic recycling plant, spraying solvents and other organic and inorganic deodorizing malodorous gases purification.

Water treatment industry: wastewater treatment plants, printing and dyeing wastewater oxidation, phenols, waste treatment and ozone bleaching exudate deodorized.

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