Relay type river purifying method

Abstract

The invention relates to a relay-type river purification method. The river is divided into several treatment sections, and a set of sewage collection pipe network is laid on the river bottom of each treatment section. The pipe network consists of two longitudinal pipes and several connecting pipes Composed of horizontal branch pipes, there are sewage suction holes on the vertical and horizontal pipes, and the pipe network covers the length of the river in the treatment section; the upstream ends of the two vertical pipes in each section of the pipe network are respectively pumped to pump river water, and the sludge impurities in the water are removed by interception and suspended solids, and then return to the river after filtration and purification, algae sterilization, and release of microbial flora, forming a relay-style purification system. The method directly purifies the river water in sections, and the pollutants are treated on the spot without being transferred to the downstream, and the purified water is continuously returned to the river, so that the river water is thoroughly and comprehensively purified. The continuous operation of the method for a period of time can make the dirty river clear, and only need to invest a small amount of operation cost in the future to realize the daily maintenance of water quality and maintain the long-term purification of the river. The method is especially suitable for purification treatment of urban rivers and ditches.

Description

technical field [0001] The invention relates to a relay type river purification method, which belongs to the field of sewage treatment. Background technique [0002] In recent years, with the rapid development of the domestic economy, the discharge of various pollutants has caused the pollution of rivers and lakes to become more and more serious. Especially with the rapid increase of urban population, the water quality of rivers in the city, which were originally used as urban landscapes, has seriously deteriorated, and blue-green algae have bloomed. Fish are hard to find, and even the water turns black and smelly, turning into a stinking ditch. The environment on which people live is seriously threatened. For this reason, governments at all levels have invested a lot of human and financial resources in the management of urban rivers, trying to change the deteriorating water quality problems of rivers. The current methods of river management mainly include river dredging, s...

AI Technical Summary

Problems solved by technology

Most of these methods are negative pollution transfer methods. Although the water quality of the river section in this area can be temporarily improved through sewage interception, flushing or dilution, in fact the pollutants are not removed, but are transferred to the downstream or other locations. Therefore, it cannot be sustained; while river dredging requires a large investment and high cost, and is only suitable for surprise treatment, and it cannot fundamentally change the problem of water pollution.

At present, there is another method of establishing ecological wetlands, but this method will also be saturated with polluted water

In short, the above methods are all palliatives, not the root cause, and cost a lot of money. Pollution is easy to recur. It is a typical fund-driven treatment measure.

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