Name

BIOPHree® : Extreme P-removal from WWTP-effluent

Speakers

Mathijs Oosterhuis

Authors

Mathijs Oosterhuis, Royal HaskoningDHV, Netherlands
Pim de Jager, Aquacare Europe BV, Netherlands

Description

Royal HaskoningDHV, Aquacare Europe B.V. and the Dutch foundation of applied water science (STOWA) demonstrated the novel adsorption technique BIOPhree® on pilot scale to remove phosphorous from real wastewater effluent. This pilot was operational for 15 months at Dronten WWTP, the Netherlands, aiming for a total phosphorus concentration in the final effluent of < 0.1 mg P/L. 

The pilot was designed to treat WWTP-effluent with a capacity of circa 3 m3/h and was composed of 3 parallel adsorption columns which were filled with iron based granules. The columns were operated with an empty bed contact time (EBCT) of 5-10 min. P-tot and PO4-P were measured daily in the feed and in the effluent of the columns. Once the P-tot concentration in the effluent was increasing > 0.1 mg P/L the adsorbent was regenerated at pH 14 with NaOH. 

The measured average P-tot in the final effluent was close to 0.1 mg P/L at an adsorption capacity of circa 2-4 g P/kg adsorbent. The adsorbent was regenerated 6 times at high pH with a stable P-adsorption capacity.  A test with nanofiltration to recover NaOH resulted in 70% recovery and a P and TOC retention of respectively 98% and 90%.

Time

9:50 AM - 10:15 AM

Location Name

Room 1

Track

09:00 - 15:45 Phosphorus