Activated sludge method is a commonly used method in urban sewage treatment plants. However, activated sludge method relies on microorganisms in wastewater to decompose pollutants to purify wastewater. Therefore, due to biological activity and culture problems, there are long treatment cycles and processes. Long, large area of ​​the structure, high requirements on the environment and water quality, long debugging cycle and other shortcomings. Therefore, many countries in the world are researching water treatment methods that have simpler processes and better treatment effects to replace biochemical methods.
Microwave energy water treatment technology The application of microwave energy in industrial production began in 1983. The application research in water treatment began in 1986. The world's first multi-purpose industrial microwave oven was successfully developed in 1999. Based on this, Beijing Runze Dongfang Environmental Protection Technology Co., Ltd. designed and produced industrialized microwave energy water treatment equipment and installed it in the sewage treatment demonstration base in Daxing District of Beijing. In April 2002, it was successfully run in one-time operation and carried out the Daxing Binhe Sewage in Beijing ( The treatment of comprehensive municipal sewage including industrial sewage and domestic sewage has significant effects. At present, this technology is used in the advanced treatment of secondary water of Lanzhou Petrochemical Company and the advanced treatment of secondary water of Baotou Mengda Power Plant. The water effluent index is close to Party A's requirements, and the project can be transferred to operation after commissioning.
Compared with traditional water treatment methods, the application effect of microwave energy water treatment technology in water treatment has been examined by experts and scholars on the spot. It is considered that this technology is a technological revolution in the field of water treatment, and has the following advantages compared with traditional process methods:
First, the project investment is low. There is no need to lay a huge pipe network and water tank, and the sludge volume is small and the efficiency is high, so the investment cost is lower than the conventional method.
The second is small footprint. The project of processing 2,400 tons of water per day using microwave energy water treatment technology covers an area of ​​less than 300 square meters, of which the microwave energy water treatment equipment occupies only 64 square meters, while the conventional method requires about 2,000 square meters.
The third is high processing efficiency. The removal rate of high-concentration, high-turbidity, and high-chroma removal of refractory organics in wastewater is more than 90%. High salinity, high heavy metal content, and removal of petroleum-based pollutants are high. Effluent can be discharged or reused.
The fourth is the miniaturization of the project. The technology can adopt a miniaturization and decentralization method to block the pollution sources, reduce the huge engineering pipe network, simplify the process flow, reduce the construction cost, and save expenses.
The fifth is broad spectrum. Applicable to all kinds of urban, commercial, industrial, agricultural sewage, can meet the treatment effect of organic pollutant concentration, temperature, salt content, chroma, odor, heavy metal content, bacteria, etc. Pretreatment equipment.
Sixth, the operational flexibility is great. Once the project adopting the microwave energy water treatment technology is put into use, fluctuations in the influent water quantity and water quality do not affect the operation, and only the process parameters can be adjusted.
Seven is bactericidal and strong algae. The bacteria and algae have high-frequency penetrating effect, and the killing ability is extremely strong. In a short time, the microorganisms can be killed and the bactericidal ability is strong.
Eighth, there is no secondary pollution. Microwave energy water treatment technology directly converts microwave energy into heat energy, so it does not introduce any new pollutants into the treated water.
Nine is fast separation of solid and liquid. Microwave energy water treatment technology under the additive chemical reaction and the microwave catalysis together, after the materialization reaction produces a large number of fast sinking flocculants, with a convergence rate of 0.7 cm per minute settlement and water separation.
Ten is the low operating cost. The main equipment for microwave energy water treatment of 2,400 tons of water per day is only 40 kilowatts, equivalent to 0.4 kilowatt hours per ton of water. The calculation of integrated operating costs is approximately 0.5 to 1.2 yuan per ton of water.
Microwave energy water treatment technology has many advantages over traditional methods, and it can certainly produce significant social, environmental, and economic benefits in practical applications.
Microwave energy water treatment technology The application of microwave energy in industrial production began in 1983. The application research in water treatment began in 1986. The world's first multi-purpose industrial microwave oven was successfully developed in 1999. Based on this, Beijing Runze Dongfang Environmental Protection Technology Co., Ltd. designed and produced industrialized microwave energy water treatment equipment and installed it in the sewage treatment demonstration base in Daxing District of Beijing. In April 2002, it was successfully run in one-time operation and carried out the Daxing Binhe Sewage in Beijing ( The treatment of comprehensive municipal sewage including industrial sewage and domestic sewage has significant effects. At present, this technology is used in the advanced treatment of secondary water of Lanzhou Petrochemical Company and the advanced treatment of secondary water of Baotou Mengda Power Plant. The water effluent index is close to Party A's requirements, and the project can be transferred to operation after commissioning.
Compared with traditional water treatment methods, the application effect of microwave energy water treatment technology in water treatment has been examined by experts and scholars on the spot. It is considered that this technology is a technological revolution in the field of water treatment, and has the following advantages compared with traditional process methods:
First, the project investment is low. There is no need to lay a huge pipe network and water tank, and the sludge volume is small and the efficiency is high, so the investment cost is lower than the conventional method.
The second is small footprint. The project of processing 2,400 tons of water per day using microwave energy water treatment technology covers an area of ​​less than 300 square meters, of which the microwave energy water treatment equipment occupies only 64 square meters, while the conventional method requires about 2,000 square meters.
The third is high processing efficiency. The removal rate of high-concentration, high-turbidity, and high-chroma removal of refractory organics in wastewater is more than 90%. High salinity, high heavy metal content, and removal of petroleum-based pollutants are high. Effluent can be discharged or reused.
The fourth is the miniaturization of the project. The technology can adopt a miniaturization and decentralization method to block the pollution sources, reduce the huge engineering pipe network, simplify the process flow, reduce the construction cost, and save expenses.
The fifth is broad spectrum. Applicable to all kinds of urban, commercial, industrial, agricultural sewage, can meet the treatment effect of organic pollutant concentration, temperature, salt content, chroma, odor, heavy metal content, bacteria, etc. Pretreatment equipment.
Sixth, the operational flexibility is great. Once the project adopting the microwave energy water treatment technology is put into use, fluctuations in the influent water quantity and water quality do not affect the operation, and only the process parameters can be adjusted.
Seven is bactericidal and strong algae. The bacteria and algae have high-frequency penetrating effect, and the killing ability is extremely strong. In a short time, the microorganisms can be killed and the bactericidal ability is strong.
Eighth, there is no secondary pollution. Microwave energy water treatment technology directly converts microwave energy into heat energy, so it does not introduce any new pollutants into the treated water.
Nine is fast separation of solid and liquid. Microwave energy water treatment technology under the additive chemical reaction and the microwave catalysis together, after the materialization reaction produces a large number of fast sinking flocculants, with a convergence rate of 0.7 cm per minute settlement and water separation.
Ten is the low operating cost. The main equipment for microwave energy water treatment of 2,400 tons of water per day is only 40 kilowatts, equivalent to 0.4 kilowatt hours per ton of water. The calculation of integrated operating costs is approximately 0.5 to 1.2 yuan per ton of water.
Microwave energy water treatment technology has many advantages over traditional methods, and it can certainly produce significant social, environmental, and economic benefits in practical applications.