In sewage treatment projects, pretreatment is a more important part. Our common pretreatment facilities mainly include grilles, screens, grit tanks, sand-water separators, oil-water separators, etc. Below, Liding Environmental Protection will introduce to you the integrated pretreatment equipment.
In the pretreatment stage, equipment and civil engineering mixed structures are widely used in China, mainly including grating channels, screens, grit tanks, sand-water separators, oil-water separators and other treatment facilities. For large and medium-sized sewage treatment plants, due to cost considerations, pretreatment devices are mainly constructed by civil construction. For small sewage treatment plants (stations), if the traditional large and medium-sized sewage treatment plant construction model is applied, the process is long, investment is high, management is complex, and the area is large. At this time, equipment equipment is a better choice. It can overcome difficulties such as long construction periods of civil buildings and inconvenient maintenance and repair. Especially for decentralized sewage treatment points, skid-mounted mobile pretreatment devices can greatly reduce investment, save land, and are widely used.
After decades of application and improvement, the technology of sewage pretreatment equipment has become increasingly mature. Although there are currently pretreatment equipment such as grid machines, sand-water separators, and oil-water separators on the market for users to choose from, these equipment have low functional integration and a single pollutant removal function. When the raw water contains multiple pollutants, users can simply use these equipment in series, which greatly increases investment costs. Therefore, there is an urgent need to develop a multifunctional, integrated, high-efficiency, low-cost, modular integrated sewage pretreatment device to meet the needs of small sewage treatment plants (stations) and village sewage treatment points, and to solve the problems of sewage treatment in these places.
The front end of the integrated sewage pretreatment device is equipped with a drum-shaped grille to remove some scum in the water. The back-end box can achieve sand settling. The box is equipped with a sand transporting screw and a sand lifting screw to achieve the separation of sand and water. An aeration device can be installed in the device. While cleaning the gravel, the scum and grease substances in the sewage can be floated up and effectively separated by the grease skimming device.
The integrated sewage pretreatment device has the characteristics of compact structure, high efficiency, small footprint and modular design. It has very broad application prospects in small and medium-sized, decentralized sewage treatment projects. In conjunction with the integrated sewage treatment equipment that has been widely used on the market, it can maximize the overall equipmentization of the project and is a relatively advanced sewage treatment solution nowadays. For more content related to sewage treatment, please pay attention to Liding Environmental Protection.
