Riverway sewage treatment dam

Abstract

The invention belongs to the field of riverway sewage treatment, and particularly relates to a riverway sewage treatment dam. The riverway sewage treatment dam is mainly characterized in that a dam body uses unit building blocks to be assembled into a overflow dam; water passing holes are distributed in the side surfaces of the unit building blocks; vermiculite and inorganic cake type multi-curvesurface porous carriers attached with microbial membranes are filled in the water passing holes. Compared with the prior art, the riverway sewage treatment dam has the obvious advantages that the damis formed through assembly; the operation is fast and convenient; the problem that a fixed sewage treatment facility cannot be built in the field is solved; the power is not needed; the building costis low; the operation and maintenance cost is low; the sewage can realize slow seepage and falling; the sewage can realize the sufficient action with the microbial membranes and vermiculite; the pollution indexes such as SS and COD in the riverway water body can be well eliminated and reduced, and the riverway water ecology is improved and restored.

Description

technical field [0001] The invention belongs to the technical field of river sewage treatment, and specifically proposes a river sewage treatment dam. Background technique [0002] With the rapid economic development and the acceleration of urbanization, the water quality of inland rivers in many cities is polluted and the water ecology is degraded. The content of oxygen-consuming organic matter and nitrogen and phosphorus nutrients is large, which exceeds the self-purification capacity of water ecology, resulting in water supply of oxygen and aerobic Imbalance will transform the water system into an anoxic state, cause a large number of anaerobic bacteria to multiply, organic matter will decay, decompose, and ferment, and produce malodorous substances such as ammonia nitrogen, hydrogen sulfide, and volatile organic acids, as well as black substances such as iron sulfide and manganese sulfide. As a result, the water body and bottom mud become black and smelly, the bottom mud...

AI Technical Summary

Problems solved by technology

[0003] The existing treatment methods for urban inland river sewage, some adopt the method of water diversion and exchange to dilute the river water. This method is only effective in a short period of time. The sewage entering the river still exists, and the black and smelly bottom mud still continuously releases pollutants, which not only wastes Water resources, and it is difficult to cure; some river dredging is used to reduce internal pollution, there is a large amount of treatment projects, and the sediment is difficult to deal with. Over time, the water body will still become eutrophic, and it will also produce black odor, which is difficult to cure

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