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Brand Name : | Beihai Galvanizing |
Model Number : | Non-standard |
Price : | Negotiable |
Payment Terms : | L/C, T/T |
Supply Ability : | No limit |
Delivery Time : | 60-120 working days |
Wastewater Treatment System for Hot Dip Galvanizing Production Line One-Stop Service Zinc Kettle Supplier
We supply reliable, high-performance, environmentally friendly, technological, and modern galvanizing factories.
The wastewater mainly comes from the rinsing water tanks and acid mist absorb tower.
This kind of wastewater is acidic (pH=2-3). The COD concentration is not high but contains metal ions (iron, zinc, etc.) and suspended matters. Therefore, if it is discharged directly without treatment, it is very easy to cause water pollution and cause greater harm to the surrounding environment.
The treated wastewater can be reused in the rinsing process or discharged directly.
No. | Process | Wastewater discharge standard(mg/L) | ||
PH | SS | Total iron | ||
1 | Waste water inlet | 2~3 | 150 | 1000 |
2 | Regulating Tank | 2~3 | 150 | 1000 |
3 | Oxidation reaction tank | 8~9 | 1500 | 1000 |
4 | Filter-press | 8~9 | 50 | 10 |
5 | Filter | 8~9 | 20 | 5 |
6 | Removal efficiency | -- | 86% | 99% |
No. | HDG Process | Equipment | Use |
1 | Pickling | Enclosed pretreatment workshop | Collect acid fume |
Acid fume treatment equipment | Environment friendly | ||
Pickling electric hoist/crane | Transfer | ||
2 | Rinsing | Wastewater treatment equipment | Environment friendly |
3 | Degreasing | Waste heat recycling system | Save energy |
4 | Rinsing | Wastewater treatment equipment | Environment friendly |
5 | Fluxing | Waste heat recycling system | Save energy |
Iron removal equipment | Recycling | ||
6 | Galvanizing | Galvanizing furnace body | For heating |
Zinc kettle | Place zinc | ||
White fume fixed hood | Collect fume | ||
White fume treatment equipment | Environment friendly | ||
Bridge crane/ electric hoist | Transfer | ||
7 | Cooling | Cooling tower | Recycling |
8 | Passivation | Chromium-free passivator | Good effect |
9 | Auxiliary | Bridge crane/Flat trolley/Material rack/Transfer pit | Transfer |
Tank’s anti-corrosion protection | Safety | ||
Zinc ingot/Chemicals/Alloy | Necessity |
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