POST EQUALIZATION OF AMMONIA PEAKS

Post equalization of peak ammonia loads in a filter with biological activity in combination with an ion exchanger is proposed as an alternative to the classical large volume equalization basin for wastewater treatment plants receiving variable influent concentrations. The results obtained indicate this modification to be very promising to dampen peaks of 2-5 times the average value. As such the system is not only useful for plants to be newly designed and constructed, but also for existing systems especially with such filters. Current systems which cannot handle peak loads successfully by themselves, can be upgraded just by the addition of the correct amount of the ion exchanger into the filter bed.