Water treatment equipment is divided into three categories: general equipment, specialized equipment, and integrated equipment. General equipment mainly includes various types of valves, pumps, and fans; Special equipment for water technology can be divided into physical and chemical treatment equipment and biochemical treatment equipment. Integrated water technology equipment is divided into small-scale integrated water purification equipment and small-scale integrated sewage treatment equipment.
Small integrated water purification equipment is a complete small-scale water purification device that uses surface water as the water source, combines the three water purification units of coagulation, sedimentation, and filtration in a reasonable manner into the same equipment, and is equipped with medication and disinfection. It is suitable for areas with small water volumes and far from urban water supply systems. The integrated water purification equipment includes three water purification units: coagulation, sedimentation, and filtration. Different types can be adopted according to the quality of raw water and the amount of treated water, but the principle is: small volume, high efficiency.
Small integrated sewage treatment equipment is often used for the treatment of domestic sewage. Due to the strong biodegradability of domestic sewage The use of biological treatment is more economical and effective, so biological treatment processes are generally adopted. According to different treatment processes, small-scale integrated sewage treatment equipment can be divided into pressure type sewage biological treatment equipment, intermittent sewage biological treatment equipment, and buried sewage biological treatment equipment.
The main advantages of integrated sewage treatment equipment are:
1. The total investment amount is very small, suitable for small social capital investments such as real estate and small factories, which can directly and effectively utilize idle funds. More in line with China's environmental protection characteristic of 'whoever pollutes, who controls'.
2. Easy operation and management, no need for specialized training for operators, only timely maintenance and upkeep of equipment, so the operating costs are also very low.
3. Save space. Urban land resources are becoming increasingly scarce, and integrated sewage treatment equipment does not require large-scale pipeline layout, allowing for more flexible arrangement of water reuse nodes. Small size, space saving, and flexible handling. The equipment can be installed on the ground or buried underground. When buried underground, the upper cover can be used for greening or square use The factory covers a small area and has few ground structures. At the same time, it will not cause landscape damage to living areas or scenic spots.
4. The scope of application of integrated sewage treatment equipment includes urban fringe areas and new areas that are difficult to cover by urban drainage networks, as well as economically underdeveloped rural small town areas. It can also treat some industrial wastewater with similar properties to urban domestic sewage, as well as urban special wastewater from hospitals, foreign-related hotels, and other places.