Activated Carbon | - Has strong hydrogen peroxide removal ability
- Adsorbable organic matter
| - Activated carbon is fragile and high loss.
- The treatment system is prone to clogging.
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Adding ferrous iron (Fenton method) | - Can remove COD in parallel.
| - Sludge to be disposed of.
- Adjust pH.
- The concentration of hydrogen peroxide should not be too high before treatment.
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Sodium thiosulfate | | - The cost of dosing is high, and the amount of dosing is large.
- Easy residual hydrogen peroxide.
- The electrical conductivity is greatly increased.
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De-oxygenase⭐ | - Low investment cost.
- No need to change existing equipment.
- React for 10 minutes to effectively remove 90% hydrogen peroxide.
- Does not generate sludge
- Does not affect COD, ammonia nitrogen...values.
- Can handle high concentration hydrogen peroxide.
| - Dosing cost is about the same as Fenton method.
- Poor thermal stability, operating at >45 ℃, need to increase the dosage.
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