A water treatment method and device for simultaneously removing heavy metal ions and organic pollutants in wastewater
A technology for heavy metal ions and organic pollutants, applied in the fields of adsorption water/sewage treatment, magnetic field/electric field water/sewage treatment, etc., can solve the problem of low energy efficiency of pollutant degradation, and achieve the effect of high treatment efficiency
Inactive Publication Date: 2015-09-30
NORTHWEST A & F UNIV
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Problems solved by technology
However, for a long time, the low energy efficiency of pollutant degradation in the pulsed discharge plasma system has been a key issue affecting its application.
It is not difficult to find that although the combination of pulsed discharge plasma technology and other technologies can effectively improve the energy efficiency of pollutant degradation, they only target organic pollutants in wastewater, but are helpless for heavy metal-organic compound polluted wastewater
Method used
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[0038] The device used in this example is figure 1 As shown, the pulse power supply (1) adopts forward pulse, the frequency is 24Hz, and the adjustment range of pulse peak voltage is 0kV-50kV. The reactor (2) shell is made of plexiglass, and its shape is a cylinder with a diameter of 100 mm and a height of 150 mm. In this example, the plate electrode (5) is a stainless steel disc with a diameter of 80 mm and a thickness of 5 mm, which is immersed in the waste water to be treated; the pinhole electrode (3) is 7 6 # Medical needles are evenly distributed on a circular metal plate (4) with a diameter of 90mm and a thickness of 3mm, and the distance between the two pinhole electrodes (3) is 15mm; the needle of each pinhole electrode (3) is connected to the The distance between the plate electrodes (5) is 15mm; the gas passed into the reactor (2) is air; the adsorbent (7) used is a columnar coal-based activated carbon, with a diameter of 1.5mm and an average length of 3mm. The am...
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Abstract
The invention relates to a water treatment method and device for simultaneously removing heavy metal ions and organic pollutants from water and belongs to the field of water pollution control. According to the method and the device, continuously flowing heavy-metal-organic composite polluted wastewater flows through a high-voltage pulse discharging region filled with adsorbents; the organic pollutants on the surfaces of the adsorbents and in adjacent regions around the adsorbents are degraded according to various physical and chemical comprehensive effects produced by pulse discharging; and therefore, active competition adsorption bits on the surfaces of the adsorbents are obtained, and the adsorption of the adsorbents to the heavy metal ions is improved, so that the aim of simultaneously removing the heavy metal ions and the organic pollutants from the water is fulfilled. The water treatment method and device have the advantages of simple theory, convenience in operation and good effect of eliminating the heavy metal ions and the organic pollutants and are suitable for treatment of the heavy-metal-organic composite polluted wastewater.
Description
technical field [0001] The invention belongs to the technical field of water pollution control. In particular, it relates to a water treatment method and device for simultaneously removing heavy metal ions and organic pollutants in wastewater. The present invention is based on the principle of competitive adsorption of heavy metal ions and organic pollutants on the adsorbent and the degradation mechanism of pollutants by pulse discharge plasma technology, through various physical and chemical comprehensive effects generated by pulse discharge to degrade the surface of the adsorbent and its surrounding The organic pollutants in the area can obtain active competitive adsorption sites on the surface of the adsorbent, and increase the adsorption of the adsorbent to heavy metal ions, so as to achieve the purpose of simultaneously removing heavy metal ions and organic pollutants in wastewater. Background technique [0002] The shortage of water resources and the pollution of wate...
Claims
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IPC IPC(8): C02F1/28C02F1/48
Inventor 屈广周肖然
Owner NORTHWEST A & F UNIV