A method for treating chlorothalonil in water with proanthocyanidins extracted from natural plants
A technology of proanthocyanidins and natural plants, which is applied to the treatment of organic pollutants in water, chlorothalonil. Natural plant extracts of proanthocyanidins are used as chlorothalonil treatment agents in water bodies, which can solve the problems of high toxicity and inability to finally degrade the chlorothalonil parent.
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Embodiment 1
[0026] Treatment of chlorothalonil in distilled water by proanthocyanidins under high pressure mercury lamp
[0027] 1. Use acetonitrile to make chlorothalonil standard solution with a concentration of 500.0mg / L, and use methanol to make proanthocyanidins (OPC) Three kinds of proanthocyanidin standard solutions. Add 10.0uL of chlorothalonil standard solution to four groups of quartz glass tubes, each group consists of three tubes; add 100.0uL of proanthocyanidin standard solution with a concentration of 1000.0mg / L to the first group; Concentration of 2500.0mg / L proanthocyanidin standard solution 100.0uL; in the third group were added concentration of 5000.0mg / L proanthocyanidin standard solution 100.0uL; the fourth group is the blank control group; The reaction system in the solution was fixed to 10mL to obtain three groups of light treatment solutions with the concentration ratios of OPC and chlorothalonil (mg / L) being 10:0.5, 25:0.5, and 50:0.5; at the same time, four group...
Embodiment 2
[0034] Treatment of chlorothalonil in natural water by proanthocyanidins under natural light irradiation
[0035] Three kinds of natural water from reservoirs, ponds and paddy fields in Hefei area were taken as the photolysis medium for the photolysis treatment unit for treating chlorothalonil in the water. Take 1L of the three kinds of natural water respectively in three glass beakers, and add 0.0005g chlorothalonil respectively Clear the standard product so that the concentration of chlorothalonil reaches 0.5 mg / L, and then add 10 mg proanthocyanidins respectively to make the concentration of proanthocyanidins reach 10 mg / L. The light source is sunlight (location: 31 degrees 52 minutes north latitude, 117 degrees 17 minutes east longitude), the light intensity is 84000lx-93000lx, and the outdoor temperature is 34°C when the light is on; See the effect of bacteria clear (0.5mg / L) figure 2 as shown, figure 2 The middle ordinate is the concentration of chlorothalonil in water...
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