Abstract
Biofouling is a major operational problem in reverse osmosis (RO) processes. Recently, direct dosing of non-oxidizing biocides into RO vessels has been attempted to effectively alleviate biofouling. Tributyl tetradecyl phosphonium chloride (TTPC) is an efficient non-oxidizing biocide, but its application to RO processes has been rarely studied. This study aimed to evaluate the applicability of TTPC to RO processes. Scanning electron microscopy and Fourier transform infrared spectroscopy analyses confirmed that the RO membrane was resistant to morphological and chemical damage up to 100,000. mg/L TTPC. Rejection of TTPC determined by a dead-end filtration unit was greater than 99.58%. Furthermore, low concentrations of TTPC (20-40. mg/L) had antimicrobial and antibiofilm properties, as determined by minimum inhibitory concentration, minimum bactericidal concentration, and evaluation of static biofilm formation. TTPC also effectively removed biofilms that had already formed on RO membranes. Given these properties of TTPC, this study demonstrates the potential for TTPC as a biocide controlling biofouling in RO processes.
| Original language | English |
|---|---|
| Pages (from-to) | 39-46 |
| Number of pages | 8 |
| Journal | Desalination |
| Volume | 372 |
| DOIs | |
| Publication status | Published - 2015 Sep 5 |
Fingerprint
Keywords
- Biocide
- Biofouling
- Non-oxidizing biocide
- Reverse osmosis
- Tributyl tetradecyl phosphonium chloride
ASJC Scopus subject areas
- Chemical Engineering(all)
- Mechanical Engineering
- Chemistry(all)
- Materials Science(all)
- Water Science and Technology
Cite this
Tributyl tetradecyl phosphonium chloride for biofouling control in reverse osmosis processes. / Kim, Taek Seung; Park, Hee-Deung.
In: Desalination, Vol. 372, 05.09.2015, p. 39-46.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Tributyl tetradecyl phosphonium chloride for biofouling control in reverse osmosis processes
AU - Kim, Taek Seung
AU - Park, Hee-Deung
PY - 2015/9/5
Y1 - 2015/9/5
N2 - Biofouling is a major operational problem in reverse osmosis (RO) processes. Recently, direct dosing of non-oxidizing biocides into RO vessels has been attempted to effectively alleviate biofouling. Tributyl tetradecyl phosphonium chloride (TTPC) is an efficient non-oxidizing biocide, but its application to RO processes has been rarely studied. This study aimed to evaluate the applicability of TTPC to RO processes. Scanning electron microscopy and Fourier transform infrared spectroscopy analyses confirmed that the RO membrane was resistant to morphological and chemical damage up to 100,000. mg/L TTPC. Rejection of TTPC determined by a dead-end filtration unit was greater than 99.58%. Furthermore, low concentrations of TTPC (20-40. mg/L) had antimicrobial and antibiofilm properties, as determined by minimum inhibitory concentration, minimum bactericidal concentration, and evaluation of static biofilm formation. TTPC also effectively removed biofilms that had already formed on RO membranes. Given these properties of TTPC, this study demonstrates the potential for TTPC as a biocide controlling biofouling in RO processes.
AB - Biofouling is a major operational problem in reverse osmosis (RO) processes. Recently, direct dosing of non-oxidizing biocides into RO vessels has been attempted to effectively alleviate biofouling. Tributyl tetradecyl phosphonium chloride (TTPC) is an efficient non-oxidizing biocide, but its application to RO processes has been rarely studied. This study aimed to evaluate the applicability of TTPC to RO processes. Scanning electron microscopy and Fourier transform infrared spectroscopy analyses confirmed that the RO membrane was resistant to morphological and chemical damage up to 100,000. mg/L TTPC. Rejection of TTPC determined by a dead-end filtration unit was greater than 99.58%. Furthermore, low concentrations of TTPC (20-40. mg/L) had antimicrobial and antibiofilm properties, as determined by minimum inhibitory concentration, minimum bactericidal concentration, and evaluation of static biofilm formation. TTPC also effectively removed biofilms that had already formed on RO membranes. Given these properties of TTPC, this study demonstrates the potential for TTPC as a biocide controlling biofouling in RO processes.
KW - Biocide
KW - Biofouling
KW - Non-oxidizing biocide
KW - Reverse osmosis
KW - Tributyl tetradecyl phosphonium chloride
UR - http://www.scopus.com/inward/record.url?scp=84935450834&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84935450834&partnerID=8YFLogxK
U2 - 10.1016/j.desal.2015.06.019
DO - 10.1016/j.desal.2015.06.019
M3 - Article
VL - 372
SP - 39
EP - 46
JO - Desalination
JF - Desalination
SN - 0011-9164
ER -