In-situ treatment method for shallow flow rejuvenated water riverway

Abstract

The invention relates to an in-situ treatment method of a shallow flow rejuvenated water riverway. According to the method, a roundstone bed shallow flow riverway is constructed, and an artificial biological filler and a compound nano fiber filler are arranged in a roundstone bed, so as to perform in-situ advanced treatment on river water which utilizes rejuvenated water as a water supplement source. According to the method, an in-situ treatment technology is adopted, the river water is not needed to be guided out of a river water system, and the water body can be directly treated in the waterway, so that the sewage transportation link is omitted, and secondary pollution can be prevented from being caused.

Description

technical field [0001] The invention belongs to the field of environmental engineering, and in particular relates to an in-situ treatment method for shallow reclaimed water channels. Background technique [0002] my country's urban rivers generally have problems such as lack of clean water supply, poor river fluidity, and damage to river and riverside ecosystems. The self-purification ability has seriously declined. In addition, due to various pollution sources that are difficult to control in the short term, the water quality of rivers has deteriorated seriously. Traditional river management often adopts municipal engineering methods such as dredging and water change, which may have certain effects in the short term, but the symptoms are not cured. Since the self-purification ability of the river has not been restored, the problems existing in polluted urban rivers are difficult to be cured. [0003] At present, river course management mainly combines ecological restoration...

AI Technical Summary

Problems solved by technology

The riverside ecological restoration project has certain limitations. In the dry season, the source of non-point pollution is small. There is only water flow in the main river, and the water flow only contacts the main river. It is difficult for the relevant lakeside ecological treatment technology to exert a purification effect.

In addition, the ecological restoration of the riverside belt still faces several major problems: the water level of urban rivers fluctuates significantly during the rainy season, which is not conducive to the normal growth of floating leaf plants; Hard and steep slopes are difficult to carry out ecological transformation, etc.

[0004] Although some rivers have already intercepted sewage, and the intercepted water body has been properly treated to meet the first-class A discharge standard before being used as a river replenishment water source, but river course governance generally requires river water quality to meet surface water level V, or even level IV, and it is difficult to replenish water without further treatment. meet governance requirements

In addition, after the intercepted water body is treated, the organic components of the effluent are mostly refractory organic matter, and it is difficult to achieve a good purification effect by using traditional methods

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