Deep underground hot spring reserves belong to high temperature and high pressure conditions. Under long-term immersion, a variety of rich minerals will be dissolved in the hot spring water. At the same time, due to the anoxic environment, it belongs to reductive. Yellowing (excessive iron and manganese ions), turbidity, sediment, odor, blackening and redness are the main problems of hot spring water.
Under the action of the lift pump, the underground hot spring is pumped into the intermediate pool. Through the working pump, the raw water first enters the manganese sand filter for iron and manganese removal treatment; The raw water then enters the quartz sand filter and activated carbon filter, and then enters the full-automatic water softener to reduce the total hardness of the water; The treated water is disinfected by the chlorine dioxide generator of the hot spring water treatment equipment, and the effluent is used as hot spring water. At the same time, the treated water can be temporarily stored in the water storage tank.
Swimming pool water is relatively easy to treat.
The general filtration process adopts coagulation adsorption and fine filtration process. Coagulation adsorption is to generate large particles from the impurities in the swimming pool water through the action of coagulant and then precipitate. Fine filtration is to send the sewage adsorbed by coagulant to the filter tank for filtration. The filtration equipment can be divided into gravity type and pressure type. The disinfection methods of swimming pool water include traditional chlorine disinfection, ozone disinfection and copper silver ion disinfection. Disinfectants are added to the swimming pool to further eliminate micro bacteria, viruses, algae and other substances in the water.
Working principle of MVR evaporation system: MVR evaporation system is a new type of energy-saving evaporation equipment with high efficiency, which is mainly used in the material and wastewater industry. The equipment uses low-temperature and low-pressure steaming technology and clean energy to generate steam for energy and separate the water in the medium. It is an international advanced evaporation technology and an upgraded product to replace the traditional evaporation system. Mechanical vapor recompression (MVR) evaporation system uses the secondary steam generated in the evaporation system, which is compressed by the compressor, increases the pressure and temperature, increases the enthalpy, and then sent to the heating chamber of the evaporation system as heating steam to maintain the boiling state of the feed liquid, while the heating steam itself condenses into water. In this way, the steam to be discarded is fully utilized, the latent heat is recovered, and the thermal efficiency is improved. The economy of raw steam is equivalent to 30 effects of multi effect evaporation, reducing the demand for external heating and cooling resources and reducing energy consumption.
1. Conventional (falling film) evaporator: in conventional evaporation, a large amount of cooling water is required to cool the heat of secondary steam (condense it), and then the heat of cooling water is cooled through the cooling tower to release the heat to the atmosphere, which not only consumes fresh steam, but also consumes a large amount of circulating water and electric energy (pump) operation, resulting in triple waste.
2. MVR (mechanical secondary steam recompression): MVR technology can reuse the secondary steam that needs to be condensed through compression to replace fresh steam. It not only avoids the use of fresh steam, but also completely abandons the cooling tower, greatly reduces the operation cost, and truly achieves environmental protection, energy conservation, water saving and cost saving. The core of energy saving of MVR technology is to increase the enthalpy of secondary steam as a heat source to replace fresh steam, and add some compressor work to realize circulating evaporation.
Tubular membrane is usually cast from glass fiber synthetic paper, non-woven fabric, plastic, ceramic or stainless steel with inner diameter of 4-25mm and length of 0.3-6m. In addition to its application in water and wastewater treatment, tubular membrane is also suitable for oil removal of ternary precursor liquid, clarification of sugar, gelatin and fermentation liquid, recovery of edible oil, sterilization of milk and other foods, chemical recovery, textile, pulping and papermaking Pre filtration of automobile and other general industries.
1. Tubular microfiltration membrane has the advantages of light appearance and small floor area
2. The installation of tubular microfiltration membrane equipment is simple and fast
3. The tubular microfiltration membrane system can be fully automated
4. Tubular microfiltration membrane has strong pollution resistance and long service life
At present, the company has experience in several projects of precursor liquid degreasing (mainly extraction liquid) in ternary industry, with mature technology, stable equipment, long-term water quality up to standard and fully automatic operation.
Dual membrane process is essentially a water treatment process of ultrafiltration and reverse osmosis. The core of dual membrane process technology is membrane separation. Ultrafiltration needs to be based on organic and inorganic membranes to intercept microorganisms, sludge and organic matter in water under the action of driving force. In this way, only small molecule substances and some soluble inorganic salt solids can pass through in the process of separation. Ultrafiltration is a pretreatment facility of reverse osmosis. Ultrafiltration can make the outlet water quality meet the requirements of inlet water quality, and can effectively prevent the blockage of reverse osmosis in the process of work.
The technology used in the reverse osmosis device is the same as that in the ultrafiltration device. It is a membrane separation technology. It is a membrane separation operation that takes the pressure difference as the driving force to separate the solvent from the solution, which can effectively remove the inorganic substances, charged ions and bacteria in the water.
Preparation of space water, purified water and distilled water; Water for alcohol manufacturing and alcohol reduction; Preliminary preparation of water for medicine, electronics and other industries; Concentration, separation, purification and water distribution preparation of chemical process; Demineralized soft water for boiler make-up water; Desalination of seawater and brackish water; Water and wastewater treatment in papermaking, electroplating, printing and dyeing and other industries.
At present, the company has its own membrane technology products, including dozens of membrane technology products such as low-pressure reverse osmosis membrane, anti pollution reverse osmosis membrane, seawater high-pressure reverse osmosis membrane and hollow fiber ultrafiltration membrane. Combined with pretreatment processes such as multi-media filtration, electrostatic adsorption, activated carbon filtration and high-density sedimentation tank, the company can meet various water quality treatment. For high ammonia nitrogen and high salt wastewater, the combined deamination and MVR evaporation technology can achieve zero discharge, mainly in ternary washing water Semiconductor ultrapure water, tap water to pure water, reclaimed water reuse, seawater desalination and other industries have a lot of mature and stable project experience.
Industrial wastewater has a wide range of sources and types. With the progress of industrial production technology, the composition of industrial wastewater has also become diversified. Among them, high aerobic pollutants and toxic pollutants reflect the characteristics of industrial wastewater in three aspects: high concentration, high ammonia nitrogen and difficult degradation.
1. HAF (mixed anaerobic filter) high efficiency anaerobic reactor
2. Fsbbr (flow separation bed bioreactor)
3. MEBR (membrane enhanced bioreactor)