Repairing method and repairing device of black and odorous river water

Abstract

The invention relates to a repairing method and a repairing device of black and odorous river water. The repairing method is characterized by comprising the following steps of: sewage interception treatment of a sewage drainage opening, aeration and water body purification treatment, recycling and treatment of bottom bud sediment, planting of ecological vegetation, establishment of a river bank gallery road and establishment of a water culture path by gallery road guardrails; the steps and the device are commonly finished. The repairing method and the repairing device can be used for recycling bottom sludge of a river channel; a river bank is reasonably utilized and a previous black and odorous river channel is changed into an ecological system integrating afforestation, leisure and industry.

Description

technical field [0001] The invention belongs to the field of water ecological restoration, and in particular relates to a restoration method and device for treating black and odorous river water, which is suitable for inland river water blackening and odorization caused by random discharge of pollutants in cities. Background technique [0002] Due to the imperfect urban planning in the early years, many pollutants were directly discharged into the city's inland rivers, resulting in serious water pollution, black and smelly, and high COD content. However, the dissolved oxygen content in the black and odorous water is extremely low, resulting in the pollution in the water cannot be oxidized and decomposed. The bottom mud sediments are silted up, the self-purification ability and flood discharge ability of the water body are seriously weakened, and the impact is due to long-term neglect, which makes the river water difficult to handle. [0003] The current methods to deal with ...

AI Technical Summary

Problems solved by technology

[0002] Due to the imperfect urban planning in the early years, many pollutants were directly discharged into the city's inland rivers, resulting in serious water pollution, black and smelly, and high COD content. However, the dissolved oxygen content in the black and odorous water is extremely low, resulting in the pollution in the water cannot be oxidized and decomposed. Bottom mud deposits are silted, and the self-purification ability and flood discharge ability of the water body are seriously weakened. The impact is due to long-term neglect, which makes the river water difficult to handle.

[0003] The current methods to deal with black and smelly river water are: Diversion of water to scour the silt. This method consumes a lot of energy and is a method of treating the symptoms rather than the root cause. The problem of the sediment is not eliminated, but the sediment is transferred from the upstream to the downstream.

In addition, the traditional aeration method is used, the aeration efficiency is low, and the treatment effect on the water body is not ideal

Using the method of floating islands, for small urban rivers, it will slow down the flow rate, which may aggravate the siltation situation, and use microbial treatment, the growth environment of microorganisms is not ideal

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