Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of uv-led/o 3 Combined method for treating hexazinone pesticide wastewater

A UV-LED and pesticide wastewater technology, applied in water/sludge/sewage treatment, water/sewage treatment, water/sewage multi-stage treatment, etc., can solve the problems of high energy consumption and poor treatment effect, and achieve energy consumption Low, little influence of salinity, effect of reducing desalination burden

Active Publication Date: 2021-09-28
SHANDONG UNIV
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of poor treatment effect and high energy consumption in existing wastewater treatment technology when dealing with pesticide wastewater with biological toxicity and high salt content, the present invention provides a UV-LED / O 3 Combined method for treating hexazinone pesticide wastewater

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of uv-led/o <sub>3</sub> Combined method for treating hexazinone pesticide wastewater
  • A kind of uv-led/o <sub>3</sub> Combined method for treating hexazinone pesticide wastewater
  • A kind of uv-led/o <sub>3</sub> Combined method for treating hexazinone pesticide wastewater

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038]A kind of processor that is provided with UV-LED lamp on the side wall comprises cylindrical reactor, structure such as figure 1 Shown, comprise cylindrical reactor 1, the bottom of reactor is provided with aeration head 3, and aeration head 3 is connected with ozone generator, and the top of reactor is provided with water outlet 5 and gas outlet, and the bottom of reactor is provided with The water inlet is provided with a UV-LED lamp 0 on the side wall of the reactor, and two UV-LED lamps are arranged on the side wall of the reactor in a 120° radiation angle distribution. One of the UV-LED lamps is 60mm away from the aerator head, and the other UV-LED lamp is 135mm away from the aerator head.

[0039] The bottom end of the reactor is provided with a base, and the center of the base is provided with a circular hole that penetrates up and down. The aerator head is fixed on the upper part of the circular hole. The ozone inlet pipe 4 of the ozone generator penetrates into...

Embodiment 2

[0041] A UV-LED / O 3 The method for treating hexazinone pesticide waste water in combination, the method adopts the processor described in embodiment 1 to carry out, and the steps are as follows:

[0042] Adjust the pH of the hexazinone pesticide wastewater to 10, pass ozone into the hexazinone pesticide wastewater, and control the ventilation rate of ozone at 20mL min -1 , turn on the UV-LED lamp, the wavelength of the light emitted by the UV-LED is 280nm, use the UV-LED to irradiate the wastewater, and use ozone and UV-LED to treat the hexazinone pesticide wastewater for 20-70min at the same time, so as to realize the efficient removal of organic pollutants degradation.

experiment example 1

[0046] Change the wavelength of embodiment 2 treatment method UV-LED, different UV-LED wavelengths are as follows to ozone oxidation degradation hexazinone pesticide wastewater effect figure 2 shown.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
wavelengthaaaaaaaaaa
Login to View More

Abstract

The present invention provides a UV‑LED / O 3 A method for combined treatment of hexazinone pesticide wastewater, the method adopts a processor with a UV-LED lamp on the side wall, adjusts the pH of the hexazinone pesticide wastewater, passes ozone into the hexazinone pesticide wastewater, and aerates the ozone The volume is controlled at 10-50mL min ‑1 , Turn on the UV-LED lamp, use UV-LED to irradiate the wastewater, and use ozone and UV-LED to simultaneously treat the hexazinone pesticide wastewater for 20-70min, so as to achieve efficient degradation of organic pollutants. The present invention has adopted ozone (O 3 ) and ultraviolet light-emitting diode (UV-LED) combined process, UV-LED wavelength at 280nm combined with ozone can greatly improve the removal effect of hexazinone, stimulate ozone to produce a variety of active substances, and oxidize and degrade organic matter.

Description

Technical field: [0001] The invention relates to a UV-LED / O 3 The invention relates to a method for combined treatment of hexazinone pesticide wastewater, which belongs to the field of advanced oxidation treatment of pesticide wastewater. Background technique: [0002] my country is one of the first countries in the world to start using pesticides. Many pesticide factories are serious sources of pollution, and pollution accidents often occur. The surface water, groundwater, and soil around the pesticide factories are seriously polluted, and the environmental quality is extremely poor. my country's pesticide "three wastes" pollution control is imminent. According to incomplete statistics, the national pesticide industry discharges about 1.5 billion tons of wastewater every year. Among them, only 7% of the total amount has been processed, and only 1% of the processed ones have reached the standard. The "three wastes" of pesticides are most severe and prominent in wastewater...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/08C02F101/30
CPCC02F1/32C02F1/66C02F1/725C02F1/78C02F9/00C02F2101/30C02F2201/3227
Inventor 高宝玉王杰王燕马德方许醒岳钦艳刘海豹姚广平
Owner SHANDONG UNIV