Ammonium Removal
An experiment was carried out on a nitrifying bio-filter with a zeolite-containing Expanded Clay Aggregate (ECA®) filter media and this resulted in a daily accumulation of ammonia from the waste water being treated.
- The Expanded Clay Aggregate (ECA®) filter removed ammonium from domestic wastewater by absorption of ammonium and a combination of nitrification.
- This Expanded Clay Aggregate (ECA®) filter can be biologically regenerated continuously without any deterioration in the work-ability after some months of continuous experiments.
- It was indicated that adsorption of ammonium from Expanded Clay Aggregate (ECA®) was basically caused by an exchange of Cations from wastewater at low concentration.
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