An apparatus for treating small river water

Abstract

The present invention provides a small river water purification device, which is composed of a pit-shaped tank and an aeration unit. The above-mentioned pit-shaped tank is arranged on the flow channel of the river, and the width is more than 1 / 2 of the effective width of the river water, and the depth is such that The river bed has a water depth of more than 2m, and the length is such that the average residence time of the river water is more than 10 minutes; the above-mentioned aeration unit is installed in the above-mentioned tank, and the aeration unit aerates the river water flowing into the tank At the same time, the river water forms a vortex. In the river water purification device of the present invention, except for the aeration device installed in the pit-shaped tank and the piping for supplying pressurized air to the aeration device, there are almost no working mechanical mechanisms, except for the blower for generating pressurized air. , almost no cost of public works and medicine, and because the blower is used to form a vortex, no sand will accumulate at the bottom of the pit, and it only needs to remove the accumulation of rocks after the flood regularly, etc., and the maintenance cost is low.

Description

technical field [0001] The invention relates to a water quality purification device for a small river, in particular to a device for treating the water quality of a small urban river on a flow channel. Background technique [0002] Due to the concentration of population and the process of urbanization, urban rivers are not only unable to function as drinking water sources due to the aggravation of pollution, but also cannot serve other purposes, and become urban pollution outlets. The sewage is diverted to the intercepting pipe through the equipment of the sewage pipeline, and is transferred to the sewage terminal treatment plant separately from the river water, and released after being treated. Thus, while the river water does not appear to be exposed to another large-scale source of pollution, the inflow of sewer water, domestic sewer inflow, and polluted surface water inflow due to misconnection of sewer pipes, indiscriminate dumping of pollutants, and Urban rivers will ...

AI Technical Summary

Problems solved by technology

It is not advisable to interfere with the living conditions of living things inhabiting rivers, such as fish, upstream and downstream, because the end and the means will be reversed.

[0006] Second, for the purpose of efficiently using space by concentrating facilities, urban rivers severely limit the idle space where water purification equipment can be installed through river repairs such as river bank construction

[0008] Fourth, since the economic effect of improving the water quality of the river can be directly calculated, it is difficult to do so if the installation cost and maintenance cost are high.

In addition to utilizing river groundwater, it is a concept of using the soil layer of the river bed as a filter bed, but it is obvious that the soil layer cut off from air supply and light cannot be used as a filter bed continuously

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