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Characteristics of Hydrogen Peroxide Dosing Device Compact structure and good integrity: The device centrally installs dosing metering pumps, supporting pipelines and valves, pressure gauges, solution tanks, liquid level gauges, and corresponding electrical controls on the same frame base. It can be flexibly and conveniently combined into various chemical dosing treatment units for different purposes to complete the dissolution, preparation, and injection of chemical solutions. Multiple configurations available: It has various forms such as "two pumps with one tank", "three pumps with two tanks", "four pumps with two tanks", and "five pumps with two tanks". Equipped with metering pumps: The configured metering pumps have a flow range of 5–980 L/h and a pressure range of 1.0–26 MPa.

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This device is mainly used for the treatment of bacteria-containing sewage in hospitals and cyanide-containing electroplating wastewater. It can also be used for disinfection in swimming pools, domestic drinking water, domestic sewage, as well as disinfection of the environment in food processing plants, medical equipment, and tableware/tableware in catering shops and public canteens. With the development of China's four modernizations drive, this type of small-scale chlorine generator will surely play an indispensable role in China's environmental protection projects, water treatment and disinfection processes, and other fields.

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The industrial application of MVR (Mechanical Vapor Recompression) crystallization evaporator technology in the thenardite industry can effectively solve the problems existing in current thenardite enterprises—high evaporation costs and large water consumption during thenardite production—which lead to high production costs for the enterprises.

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Compared with traditional evaporators, it saves nearly 50% of energy;No condensation facilities or condensed water are required;Adopts low-temperature difference evaporation, suitable for heat-sensitive materials;High degree of automation, requiring fewer operators;Fewer supporting public engineering projects and small floor space;Low operation and maintenance costs.

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The working process of MVR is as follows: A compressor compresses low-temperature-level vapor to increase its temperature, pressure, and heat content. The compressed vapor then enters a heat exchanger for condensation, allowing full utilization of the latent heat of the vapor. Except for the start-up phase, the evaporator does not require additional steam generation for the secondary vapor throughout the entire evaporation process. After being compressed by the compressor, the vapor’s pressure and temperature rise, and its heat content increases. It is then sent to the heating chamber of the evaporator to be used as heating steam, which keeps the feed liquid in a boiling state, while the heating steam itself condenses into water. In this way, waste vapor can be fully utilized, latent heat is recovered, and thermal efficiency is improved. The economic efficiency of live steam is equivalent to that of a 30-effect multi-effect evaporation system.

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MVR is the abbreviation of Mechanical Vapor Recompression technology. The MVR evaporator is an energy-saving technology that can reuse the energy of secondary vapor generated by itself, thereby reducing the demand for external energy sources. The working process of MVR is as follows: A compressor compresses low-temperature-level vapor to increase its temperature, pressure, and heat content. The compressed vapor then enters a heat exchanger for condensation, enabling full utilization of the latent heat of the vapor. Except for the start-up phase, no additional steam needs to be generated for the secondary vapor of the evaporator throughout the entire evaporation process. After being compressed by the compressor, the vapor’s pressure and temperature rise, and its heat content increases. It is then sent to the heating chamber of the evaporator to serve as heating steam, which keeps the feed liquid in a boiling state, while the heating steam itself condenses into water. In this way, waste vapor can be fully utilized, latent heat is recovered, and thermal efficiency is improved. The economic efficiency of live steam is equivalent to that of a 30-effect multi-effect evaporation system. To make the manufacturing of the evaporation device as simple as possible and its operation convenient, high-pressure fans and high-pressure blowers can be used. These machines have a relatively high volumetric flow rate within a compression ratio range of 1:1.2 to 1:2.

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As a new technology in the advanced sewage treatment process, the ozone catalytic oxidation process has attracted widespread attention due to its advantages such as strong oxidizing property, fast reaction speed, low investment, good treatment effect, low operating cost, and no secondary pollution. This process can effectively remove inorganic substances in water, such as chromaticity, odor, iron, and manganese, and significantly reduce pollutant indicators of sewage like COD (Chemical Oxygen Demand), TOC (Total Organic Carbon), and ultraviolet absorption value. It is mainly used for the treatment of secondary effluent, municipal sewage, coking wastewater, printing and dyeing wastewater, landfill leachate, pharmaceutical wastewater, chemical wastewater, etc.

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The waste gas in electroplating plants mainly comes from acid mist and alkaline gases volatilized during acid-base soaking. This waste gas is highly corrosive and poses significant hazards to the human body. Electroplating plants typically emit gases such as nitric acid, sulfuric acid, and hydrofluoric acid, which are treated using an acid washing tower. The process involves drawing the waste gas into the tower for neutralization treatment, followed by discharge through an exhaust fan to meet the emission standards.