MBBR industry application
Nitrogen Removal in Metal Finishing Wastewater with MBBR Technology
Stable biological nitrogen removal for challenging metal-finishing wastewater.
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Nitrogen in plating effluent
Metal plating and finishing facilities must manage heavy metals alongside increasingly stringent limits for nitrogen compounds, particularly ammonia and nitrates.
Wastewater from plating, cleaning, and rinsing often contains ammonia, residual chemicals, and heavy metals, with sharp pH and temperature fluctuations. These conditions can disrupt conventional biological processes and lead to inconsistent treatment or non-compliance.
A robust MBBR system
The Ecologix MBBR grows a protected, self-regulating biofilm on specially designed media carriers. This resilient biological colony tolerates toxic shocks and process variations common in metal-finishing wastewater.
Systems can be configured for complete nitrogen removal through two treatment zones:
- Nitrification: In an aerobic reactor, specialized bacteria convert ammonia to nitrates.
- Denitrification: An anoxic reactor then converts nitrates into harmless nitrogen gas.
Key advantages for metal finishers
Consistent compliance
Stable nitrification and denitrification support stringent ammonia and nitrate discharge limits.
Compact footprint
MBBR systems can use substantially less plant space than conventional activated-sludge treatment.
Resilience to toxicity
Protected biofilm helps withstand the chemical shocks and variable loads common in finishing operations.
Low-maintenance automation
Self-regulating biofilm reduces operator intervention, labor costs, and process complexity.
Ready to learn more about MBBR solutions?
Get in touch with Ecologix wastewater treatment experts today.
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