Combined stream pulling type diving buoyancy lift equipment and technique for removing nature aquifer blue algae

Abstract

The invention discloses a combined plug-flow diving buoyancy lift device and a technique of rapidly removing blue green algae of natural water; wherein, the whole or part of a diving buoyancy lift pool is constructed on a bottom surface of an underwater lake bottom basement; a water inlet and a water outlet of the device are arranged below a horizontal plane of the wastewater to be treated; a front damper is arranged at one end of the diving buoyancy lift pool which is provided with a water inlet device, and a baffle plate is arranged at the back of the front damper to form a flocculation tank; a sinking type center spacer divides the flocculation tank and the buoyancy lift pool; a back damper is arranged between the buoyancy lift pool and a clear water tank; a medical feed device and an air-injecting device are arranged at a reflux pipe above the diving buoyancy lift pool; a group of clear water honeycomb ducts are arranged at the bottom of the buoyancy lift pool; a blue green algae discharge pipe is arranged at the bottom of a blue green algae collection tank which is arranged at the upper part of the back end of the buoyancy lift pool; a clear water drain pipe is arranged at the back end ofthe clear water pool. The device of the invention can be implemented in various natural water environments according to different techniques and has the advantages of not only reducing the construction cost of ground environment but also avoiding the energy consumption in lifting and long distance conveyance of the wastewater and improving the practicality and application range of the removing technique of the blue green algae.

Description

technical field [0001] The invention belongs to the technical field of environmental protection equipment, and specifically relates to a combined push-flow submersible buoyancy equipment and a process for quickly removing cyanobacteria in natural water bodies based on the air flotation method, which can be directly implemented in natural water bodies. Background technique [0002] The treatment of nitrogen and phosphorus in sewage treatment has been a difficult problem for a long time. Due to the incomplete treatment of nitrogen and phosphorus in sewage, the eutrophication of rivers, rivers, lakes and even the sea is serious, resulting in large-scale water pollution events such as blue-green algae and red tides. Frequent outbreaks. Since the algae grows at a doubling rate of about 20 minutes and dies relatively quickly, the oxygen in the water is exhausted, and at the same time, cyanobacteria toxins are produced to cause the rapid death of other organisms in the water, which...

AI Technical Summary

Problems solved by technology

There are some deficiencies in the above-mentioned treatment methods: for example, coagulation sedimentation and algae toxin inhibition method can only temporarily alleviate the growth of algae because the algae pollutants are not actually taken out from the water body. growth, to re-growth and re-governance" cycle

However, the main equipment of the existing cyanobacteria treatment process needs to be built on the ground, which takes up a lot of land, and the investment in pipe network and equipment materials is relatively large. The equipment cannot be moved to the dense area of ​​cyanobacteria. Ascension and long-distance transmission power loss is huge

Existing technologies to deal with large-scale water body cyanobacteria pollution are limited by the above-mentioned factors

In the face of the huge amount of treated water in lakes polluted by cyanobacteria, if the existing technical methods, the investment, construction and operation costs are huge

Therefore, the air flotation method is mostly only used for water treatment in waterworks, but not for large-scale water ecological restoration.

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