A specific pilot-scale membrane hybrid treatment system for municipal wastewater treatment

作者：Dinh Duc Nguyen; Ngo Huu Hao; Kim Sa Dong; Yoon Yong Soo^*

来源：Bioresource Technology, 2014, 169: 52-61.

DOI：10.1016/j.biortech.2014.06.087

• Pilot-scale hybrid treatment system
• Municipal wastewater
• Internal recycling ratio
• Specific energy consumption
• Membrane fouling

A specifically designed pilot-scale hybrid wastewater treatment system integrating an innovative equalizing reactor (EQ), rotating hanging media bioreactor (RHMBR) and submerged flat sheet membrane bioreactor (SMBR) was evaluated for its effectiveness in practical, long-term, real-world applications. The pilot system was operated at a constant flux, but with different internal recycle flow rates (Q) over a long-term operating of 475 days. At 4Q internal recycle flow rate, BOD5, CODCr, NH41-N, T-N, T-P and TSS was highly removed with efficiencies up to 99.88 +/- 0.05%, 95.01 +/- 1.62%, 100%, 90.42 +/- 2.43%, 73.44 +/- 6.03%, and 99.93 +/- 0.28%, respectively. Furthermore, the effluent quality was also superior in terms of turbidity (%26lt;1 NTU), color (%26lt;15 TCU) and taste (inoffensive). The results indicated that with providing only chemically cleaned-in-place (CIP) during the entire period of operation, the membrane could continuously maintain a constant permeate flux of 22.77 +/- 2.19 L/m(2) h. In addition, the power consumption was also found to be reasonably low (0.92-1.62 kWh/m(3)).

• 出版日期2014-10