Combined system for hydroxyl radical (.OH) strong oxidation treatment of high algae-laden water

Abstract

The invention relates to water treatment, in particular to a combined system for hydroxyl radical (.OH) strong oxidation treatment of high algae-laden water. The combined system includes an air floatation unit, an .OH killing unit, an activated carbon adsorption unit, and a central control system, wherein a water inlet of the air floatation unit is externally connected with a high algae-laden water source, and drinking water is discharged from a water outlet of the activated carbon adsorption unit; the air floatation unit includes a flocculation room, an air floatation separation room, a slag scraping machine, a sludge discharge pipe, an air-in-water pump, an air compressor, an air floatation dissolved air tank, a releaser and a stirrer; the killing unit includes a third water quality analyzer, a filter, an .OH generating device, and a mixing and dissolving tank; in the mixing and dissolving tank, an .OH solution prepared through the .OH generating device is fully mixed with high algae-laden water to be treated which is conveyed to a main pipeline through the filter, and organic pollutants are killed at the same time; the activated carbon adsorption unit includes a total residual oxidant (TRO) detector, an activated carbon absorption tank, and a fourth water quality analyzer; an inlet of the activated carbon absorption tank is connected to an outlet of the mixing and dissolving tank.

Description

technical field [0001] The invention belongs to the fields of gas discharge science, free radical biology, water treatment application technology and the like, and relates to a combined system for treating high-algae water by strong oxidation of hydroxyl radicals. Background technique [0002] About 25% of my country's drinking water sources are lake water or river reservoir water. Under the interference of global changes and human activities, nutrient loads are increasing, water eutrophication is becoming more and more serious, and algal blooms are frequent. When algal blooms occur, algae proliferate in large numbers, emit odors, and release toxic substances such as algae toxins, causing poison to humans, livestock and aquatic animals, and destroying the ecological balance of lakes and rivers. Water source pollution caused by algae blooms will cause waterworks to be forced to reduce or stop production, seriously threatening the safety of urban water supply and drinking wate...

AI Technical Summary

Problems solved by technology

[0006] Chinese patent CN200610152264.4 discloses a eutrophic water treatment method and a tank, using slaked lime or quicklime to remove pollutants and adding a flocculant; CN200910052470.1 discloses a method and device for prompting rapid coagulation and settlement of suspended algae in water bodies; CN200610086290.1 ​​discloses a method and flocculant for controlling freshwater blooms with magnetically controlled modified fly ash; CN200310113623.1 discloses a method and device for air flotation water purification in combination with flocculation, air flotation and solid-liquid separation technologies, but the The method is limited to the treatment of slightly polluted or moderately polluted water bodies

[0010] my country is a country where natural disasters and biochemical disasters occur frequently, and health emergencies occur from time to time. In the areas where disasters occur, water sources are often seriously polluted, water supply systems are severely damaged, and drinking water is difficult to guarantee.

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