Two Differences of Filtration and Purification Series

Features of activated sludge process: The traditional activated sludge process is currently the most widely used series of urban domestic sewage filtration and purification. The land area is large, and many other problems have arisen: ①Due to the low efficiency of solid-liquid separation in the sedimentation tank, it is difficult to maintain a high level of sludge concentration in the aeration tank, resulting in low volume load of the treatment device and low oxygen transfer efficiency. High energy consumption; ②The water quality of the treated effluent is not ideal and stable, and it is difficult to meet the discharge standards; ③The excess sludge output is large, and the sludge treatment cost is high; ④The management operation is complicated and the maintenance cost is high. The integrated sewage filtration and purification series has many advantages: (1) There are fewer structures and less infrastructure investment. The integrated wastewater filtration and purification series of engineering structures have few structures, simple process, small investment, short construction period, flexible operation and management, etc., and can meet various wastewater treatment requirements such as living quarters and small and medium-sized enterprises. (2) Compact structure and small footprint. Large and medium-sized sewage filtration and purification series plants cover a large area, while my country's land resources are relatively scarce, and the contradictions between various land use requirements are becoming increasingly acute. The integrated sewage filtration and purification series can effectively reduce the floor space. Many equipment can also be buried in the design, which not only saves space, but also does not cause damage to the landscape of hotels, high-end residential quarters and scenic spots. Various requirements, with a wide range of adaptability. (3) Reduce the construction of pipeline network and effectively reuse wastewater. With the gradual increase of domestic and industrial water use, the environmental pollution caused by the direct discharge of wastewater is becoming more and more serious. If most of the treated wastewater is reused, water resources can be effectively saved. Due to the flexible and changeable form of the integrated equipment, the sewage treated by the sewage filtration and purification series can be reused nearby, which not only reduces the construction investment of the pipe network, but also effectively reduces the sewage discharge.