1、 Product Introduction:

The odorous gases described in the biological treatment device mainly refer to organic or inorganic odorous substances generated during the production and use of urban sewage treatment plants, sewage lift pump stations, garbage treatment, sludge treatment, composting, chemical production enterprises, pharmaceutical enterprises, etc. These odorous gases cause pollution to the surrounding environment and pose a threat to human health.

The biological treatment device for odorous gases overcomes the potential secondary pollution issues that may arise from physical regeneration and chemical methods. It is a system that relies on microorganisms growing on a filler carrier to treat VOCs. Microorganisms grow on the filter material in the form of biofilms, and the mass transfer and degradation of VOC substances occur in the same reactor. Spray circulation system above the biological bed packing to circulate the liquid phase. The equipment is equipped with a packing material attached with microorganisms. Due to the presence of the carrier, the biomass of microorganisms increases, and the gas-liquid contact efficiency is high, which can achieve the goal of efficient removal. The microbial treatment method also has extremely high efficiency in treating hydrogen sulfide, chlorinated organic compounds, toluene, etc. As long as the microorganisms are "inoculated" on the surface of a suitable carrier filter material, and the conditions suitable for microbial growth are controlled to allow the odor to pass through, a purification effect can be produced.

Microbial treatment of VOCs can be expressed as follows:

VOCs+O2 → cellular metabolites+CO2+H2O

2、 Product features:

① Biological treatment of VOCs can avoid or reduce secondary pollution. Generally, various odorous components such as sulfur, carbon, and nitrogen, as well as toxic components such as phenol and cyanide, are oxidized and decomposed into substances such as CO2, H2O, H2SO4, etc. By artificially creating environments such as filtration, aeration, and washing, human control and management can be carried out to avoid or reduce secondary pollution.

② Low operating cost biological treatment of VOCs uses VOC components as the energy source within the organism. As long as microorganisms come into contact with VOC components, oxidation and decomposition processes can be completed. Compared with the physical and chemical treatment of VOCs, the suitable temperature for microbial growth is generally 20-30 ℃, close to room temperature. Therefore, the biological treatment of VOCs generally does not require heating, which not only saves energy and resources, but also has relatively low treatment costs.

③ High processing efficiency can be achieved by controlling appropriate load conditions and gas-liquid contact conditions.

④ The equipment is simple as long as devices such as biological filters, humidifiers, and traps are set up, and the biological VOC treatment device is relatively simple.

3、 Technical sources and indicators Technical basis:

The product technology comes from developed countries abroad, and the product technology is advanced, safe, and reliable. On the basis of completing experimental experiments and a large amount of test data, biological treatment has researched and proposed new biological treatment deodorization product technologies, and the technological research level of the products has a high starting point. The core technology of the product is to use efficient biological purification technology to treat odorous gases and other organic toxic and harmful gases.

4、 Features and Innovations:

① Screen out efficient composite microorganisms, develop programmed microbial cultivation and immobilization techniques, and determine advanced processes for treating different objects (VOCs of different concentrations and compositions) with biological methods as the core technology.

② Through the modular unit optimization combination of multiple VOC treatment technologies, mass production can be achieved.

③ Using mechatronics technology, the fully automated unattended functional system is innovatively designed to realize the functions of automatically replenishing nutrient solution, automatically adjusting the PH value in the tank, and automatically discharging circulating water, which reflects the progressiveness and reliability of the whole system.

④ Compared with similar domestic products, it has obvious advantages such as strong adaptability, low price, and low operating costs. This product not only fills the domestic gap, but also achieves the advanced level of key performance indicators for odor treatment efficiency compared to similar foreign products, with a price only 25% of similar foreign products.

Main technical and economic indicators of the equipment

When the NH3 and H2S content is ≥ 50mg/m3, the gas deodorization efficiency can reach over 98%. When the NH3 and H2S content is 5mg/m3, the gas deodorization efficiency can also reach over 92%, and the exhaust gas meets the national emission standards. Deodorization cost is less than 2 yuan/thousand cubic meters.

Technical points of the equipment:

① After being collected by the gas collection system, the odorous gas is humidified by a humidifier and then enters the biofilter bed for deodorization.

② Biological fillers, carefully designed and screened, ensure the lifespan of the fillers, ensure the uniformity and breathability of the filter bed, and eliminate phenomena such as clogging, cracking, and short flow of general filter bed fillers.

③ By using automation technology to ensure that biological fillers are always in optimal operating conditions, humidity and temperature control are maintained.

5、 Schematic diagram of biological deodorization process flow:

Odor → Temperature controlled humidifier → Biological deodorization device → Induced draft fan → Exhaust