Task
NBG Fiber GmbH is a renowned manufacturer of highly specialized fiber optic products used in a variety of industries and applications. Their product line includes fiber optics in metal tubes, fiber optic cables for telecommunications, fiber optic cables for sensor cables and hybrid cables used in the oil and gas industry.
Treatment of waste water from laboratories with high levels of hydrofluoric and nitric acid.
Design data
Preparation quantity:
- 7.2m3/d
Target parameters:
- Neutralization
- Significant reduction in the fluoride concentration
Solution & implementation
Our comprehensive process for cleaning and treating laboratory wastewater from the manufacture of glass fiber products consists of several key steps:
1. batch tank for homogenization: At the beginning, the laboratory wastewater is placed in a batch tank where it is thoroughly homogenized to ensure a uniform consistency.
2. precipitation reactor with wastewater chemicals: In the next step, the wastewater is treated in the precipitation reactor using precipitants. This step aims to precipitate dissolved wastewater constituents. In addition, the pH value is adjusted to a neutral range by adding neutralizing agents.
3. addition of flocculants and sedimentation: In the next process step, flocculants are added. The previously precipitated particulate substances combine to form larger sludge flocs. These are separated from the treated wastewater in the sedimentation reactor(ALMA CHEM MCW).
4. chamber filter press for dewatering: The resulting sludge and the separated impurities are dewatered in a chamber filter press, which significantly reduces disposal costs.
5. gravel filter for final purification: Finally, the treated wastewater is pumped through a gravel filter(ALMA FIL) to remove the last insoluble pollutants from the wastewater.
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