The boiler make-up water is mainly used to supplement the steam and water loss of the water and steam system. According to the treatment process, the make-up water treatment can be divided into water pretreatment and desalination treatment. At present, natural water bodies are mainly used in China, such as rivers, reservoirs, lakes and groundwater, and some power plants use tap water as raw water. The main purpose of water pretreatment is to remove silt, clay, humus and colloidal particles in raw water, so as to reduce turbidity to 15 mg / L. Due to the different hydrological conditions and water quality, the technological processes adopted are also different, such as stick coagulation treatment, sedimentation and clarification treatment, filtration and adsorption treatment, etc. The application of pre desalination treatment system is that when the salt content of raw water is high, electrodialysis or reverse osmosis should be used to reduce the burden of ion exchange device.
Precision filtration membrane separation technology
There is no need to add coagulant to remove a wide range of pollutants;
There are various materials, such as acetic acid fiber membrane, aromatic polyamide membrane, polysulfone membrane, polypropylene membrane, inorganic ceramic membrane, etc;
According to the pore size of membrane, membrane filtration can be divided into four types: microfiltration, ultrafiltration, nanofiltration and reverse osmosis;
It has a wide range of applications. Different membranes are selected to separate ions, molecules, viruses, bacteria, clay, sand particles and other generalized particles to achieve the desired separation effect;
Reliable operation, compact equipment, easy to realize automatic control, etc.