The Case Of Hebei Project – Pesticide Wastewater(Sodium Salt)

June 24, 2022

Pesticide (sodium salt) wastewater degradation data report — Pesticide wastewater (sodium salt) degradation data report

1. Basic situation of pesticide wastewater

2. Site conditions

These water tanks are 18,000 cubic meters in existence, and the production plant has closed down. No new water will be produced. It takes about a year to complete the processing, so the future processing capacity of the system is 50 tons/day。

3. Experimental principle

This experiment uses the principle of electrochemical catalytic oxidation and uses BDD electrodes as the core reaction device to finally convert the organic matter in the water sample into CO2 and H2o.

4. Electrodes

4.1 Anode:

Two BDD electrodes with a single crystal silicon substrate, with an area of 200cm2.

4.2 Cathode:

Three titanium sheets.

5. Experimental operation

Take 900 mL of water samples and place them in a beaker; put in the BDD electrode module (the actual area of the anode is 150cm2), heat the water sample to a constant temperature of 7oC; connect the power supply, adjust the current intensity to 4.5A, and begin to degrade. During the degradation process, the water sample was stirred with a magnetic stirrer to make it uniform. Samples are taken at regular intervals, the current and voltage values are recorded, and the temperature and pH value is measured.

6. Experimental phenomenon

Before degradation, the water sample was brown-black; during the degradation process, the color gradually faded; a small amount of brown precipitation was produced.

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——– Boromond Team