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Guangdong Province Printing Wastewater Degradation Data Report
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Guangdong Province Printing Wastewater Degradation Data Report
- Water sample
Guangdong printing wastewater
- Electrode
BDD portable Test Equipment
Anode: Si base BDD electrode, working area is 420cm2
Cathode: Ti
Plate spacing: 2mm
- Experimental operation and phenomenon
Take 1L of raw water into the BDD electrocatalytic system; the conductivity of the raw water is low, add 2% anhydrous sodium sulfate; the actual use area of the anode is 420cm2; the current density is 40mA/cm²; During the process, stir the water sample with a magnetic stirrer to make it homogeneous。
The raw water is dark black, no foam is produced during the degradation process, and almost no precipitation occurs, and the water sample becomes clear after 3-4 hours of degradation。
- Experimental data analysis
Time/h | voltage/V | Ampere/A | Working area
/cm2 |
Engergy cost/
kW·h/m³ |
COD/
mg/L |
pH | ||
0 | 5.64 | 16.8 | 150 | >110450 | 5-6 | |||
3 | 5.31 | 289.3 | >53270 | 3-4 | ||||
5 | 6.2 | 483 | 13042.8 | 3-4 | ||||
7 | 5.85 | 676.2 | 603.1 | 8-9 |