The Long-term Evaluation Method of MBR Membrane | Chapter 7 | Current Approaches in Engineering Research and Technology Vol. 2

 

The permeable volume and trans-membrane pressure difference of all 3520 days, from October 2011 to November 2021, in an A2/O-MBR RWTP (recycled water treatment plant) in Xi'an Siyuan University have been indiscriminately used to study an evaluation method of MBR hollow fiber membrane. The 1 m³permeable volume of 1000 ㎡membrane area at 1 day and 1 kPa trans-membrane pressure (TMP) difference is defined as one industrial permeability, 1 VMD.  The VMD of every day is directly calculated by using the daily computer’s records of the RWTP.  After excluding some anomalies from the original data, an arithmetic average of each 25 days (as a group unit) effective VMD was calculated.  Then, group units are reduced into annual units.  After four years, a power equation is fitted into the annual VMD attenuation equation of the previous four years of RWTP operation.  The calculation of the annual VMD attenuation equation is straightforward, simple, and convenient.  The VMD declined annually by about 0.78.  The TMP increased annually by about 0.66 kPa.

Author(s) Details:-

 

Li Dong
Energy and Chemical Engineering Research Center, Xi' an Siyuan University, Xi'an 710038, China.

 

Zhang Xuemei
Energy and Chemical Engineering Research Center, Xi' an Siyuan University, Xi'an 710038, China.

 

 

Ma Qinghua
Energy and Chemical Engineering Research Center, Xi' an Siyuan University, Xi'an 710038, China

 

Fu Bo
Regenerative Water Plant, Xi 'an Siyuan University, Xi' an 710038, China.

 

Qin Baolan
Regenerative Water Plant, Xi 'an Siyuan University, Xi' an 710038, China.

 

Hao Jingyuan
Energy and Chemical Engineering Research Center, Xi' an Siyuan University, Xi'an 710038, China and School of Chemical Engineering and Technology, No. 28, Xianning West Road, Beilin District, Xi’an 710048, China.

 

Please see the link here:  https://doi.org/10.9734/bpi/caert/v2/8441E