An apparatus for treating small river water

Abstract

The invention provides an apparatus for treating a river water, comprising a pit type bath built below a river bed on the path of flow, the pit type bath being wider than half of an effective flow width of the river, being more than 2 meters deep and having length of more than 10 minutes retention time, and aeration means equipped in the pit type bath for aerating and whirling the water which flows into the pit type bath. The said device does not reqire any work mechanism except aeration means equipped in the pit type bath and pipe for providing pressured air. Besides the blower for generating pressured air, the invention does not consume any utility cost and medicine cost, and the blower is used to generate swirl and the sand does not accumulate at the bottom, and the accumulation of rock can be removed at fixed periods and the maintain cost is low.

Description

Small river water purification device technical field 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 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,...

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.

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

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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