Biological purification system for treating black and odorous water of riverway

Abstract

The invention discloses a biological purification system for treating black and odorous water of a riverway, and belongs to the technical field of water treatment. The system comprises a filtering area, an odor removal treatment area, an anaerobic treatment area, an aerobic treatment area, a precipitation separation area and a power supply assembly, wherein biological purification boxes are arranged at the anaerobic treatment area and the aerobic treatment area in the direction perpendicular to water flow respectively; a plurality of purification cavities are formed in the biological purification boxes in the horizontal direction; and a plurality of biological filler frames with the radiuses sequentially increased from inside to outside are arranged in each purification cavity. According to the method, in-situ remediation is carried out on the black and odorous water of the riverway, the existing riverway can be fully utilized, and the construction land is greatly saved; by arranging the multiple biological filler frames, the retention time of the river water body in the biological filler frames is prolonged, harmful substances in the water body can be fully degraded, the stabilityof the biological purification boxes is greatly improved through inserting anchors arranged at the bottom ends of the biological purification boxes, and the influence of impact force of water flow onthe installation firmness of the biological filler frames is avoided.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a biological purification system for treating black and odorous water bodies in river courses. Background technique [0002] In recent years, with the process of urbanization and the rapid development of human society, the generation of pollutants has seriously restricted the environmental load capacity, the amount of wastewater discharge has increased, and the self-purification capacity of water bodies has continued to decline. Water pollution, especially urban river pollution has become an important environmental problem that cannot be avoided. At present, under the multiple drives of policy requirements, goal orientation and practical needs, the phenomenon of black and odorous water bodies in urban built-up areas has become a key issue in the field of environmental protection. [0003] The mechanism of black and odorous phenomenon in water bodies is roughl...

AI Technical Summary

Problems solved by technology

[0005] When the existing bio-ecological method treats the black and odorous water of the river, the staff needs to clean up the sundries in the black and odorous water after filtering, which increases the workload of the staff. If the cleaning is not timely, it will also cause the blockage of the filter grid and affect the treatment of the water body Efficiency; the length of contact with the biological filler or the contact area is small, and the quality of the treated water cannot be guaranteed; when coagulation sedimentation or deodorization, it is necessary to spray relevant chemicals, and the chemicals and the river water cannot be fully mixed, and the water at the bottom of the river can be added. Most of the existing sedimentation tanks are open, so the sundries in the air will blow into the sedimentation tank with the wind to form secondary pollution

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