Abstract
We examined phosphorus removal from small-scale domestic wastewater treatment system by means of an electrolytic bath. The electrolytic bath has electrodes of iron, and the wastewater treatment system has a biofilter. This method of removing phosphorus from the wastewater treatment system succeeded in removing more than 85% of the phosphorus while maintaining the Fe:P ratio at 1.5 and the polarity reversal period at 24 hours. And, this method offers high stability of phosphorus removal of more than six months. Moreover, compared with other methods, this method provides the phosphorus removal unit features a compact design and low running cost.In view of these facts, we believe that phosphorus removal technology incorporating the electrochemical elution of iron can be provided for any wastewater treatment system.
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