Submit your paper 
Download Template JOURNAL DETAIL
Effects of Sub-lethal Concentrations of Isothiazolone Biocide on the Performance of Rotating Biological Contactors
Paper Type  |
Contributed Paper |
Title |
Effects of Sub-lethal Concentrations of Isothiazolone Biocide on the Performance of Rotating Biological Contactors |
Author |
Prapaparn Sirikhansaeng, Niphaphat Phukoetphim, Pattana Laopaiboon and Lakkana Laopaiboon* |
Email |
lakcha@kku.ac.th |
|
Abstract: The aim of this study was to investigate the effects of operating conditions on chemical oxygen demand (COD) removal and biocide degradation in a synthetic wastewater by rotating
biological contactors (RBCs). The RBC operating parameters included the organic loading rate (OLR),
hydraulic loading rate (HLR) and hydraulic retention time (HRT). The presence of another carbon
source (lab-Lemco broth) in the synthetic wastewater contaminated with isothiazolone (IT) biocide at
sub-lethal concentrations was also examined. Biofilms were established on RBC discs and then exposed
to the wastewater containing 6 ppm of IT under various operating conditions. After an acclimatization
period with an HRT of 36 min, the COD removal was 16.49 ± 1.55% and biocide removal was
negligible. IT degradation increased with the OLR of a growth substrate and/or HRT. Acclimatized
biofilms exhibited IT degradation through co-metabolism when Lab-Lemco broth was included in the
medium. At an OLR (using Lab-Lemco broth) of 17 to 20 g COD/m2.d, the acclimatized biofilms
degraded 73.11 ± 5.01 to 77.38 ± 6.66% and 45.76 ± 5.01% of the 6 ppm of IT at HRT values of
72 and 36 min, respectively. When the OLR of the growth substrate was doubled, IT degradation
increased to 59.33 ± 5.58% at an HRT of 36 min. The IT resistant bacteria were tentatively identified
as predominantly of the species Burkholderia cepacia. Biofilms could be developed in the presence of
3 ppm of IT after an acclimatization period, and the degree of COD removal and biocide degradation
depended on the HLR and HRT values. Biochemical oxygen demand (BOD) measurements were not
appropriate for investigating treatment of wastewater contaminated with IT due to severe bio-oxidation
inhibition. This was true even when using adapted seed and/or increased incubation time. |
|
Start & End Page |
74 - 89 |
Received Date |
2020-01-16 |
Revised Date |
|
Accepted Date |
2020-05-27 |
Full Text |
Download |
Keyword |
biocide, biofilm, biodegradation, isothiazolone compounds, RBC, wastewater treatment |
Volume |
Vol.48 No.1 (January 2021) |
DOI |
|
Citation |
Sirikhansaeng P., Phukoetphim N., Laopaiboon P. and Laopaiboon* L., Effects of Sub-lethal Concentrations of Isothiazolone Biocide on the Performance of Rotating Biological Contactors, Chiang Mai Journal of Science, 2021; 48(1): 74-89. |
SDGs |
|
| View:1,147 Download:444 | |
RELATED ARTICLE
Isolation and Identification of Lipase-producing Bacteria from Wastewater Treatment Pond for the Removal of Oil and Grease in Wastewater Treatment
Article ID: e2024096
Author:Ganogwan Sukplang, Chaiyanut Narasettiti, Orawan Chunhachart, Moltira Srithaworn, Wanlapa Lorliam, Sukhumaporn Krajangsang and Titiporn Panyachanakul
Vol.51 No.6 (November 2024) View: 390 Download:146
Article ID: e2024096
Author:Ganogwan Sukplang, Chaiyanut Narasettiti, Orawan Chunhachart, Moltira Srithaworn, Wanlapa Lorliam, Sukhumaporn Krajangsang and Titiporn Panyachanakul
Vol.51 No.6 (November 2024) View: 390 Download:146
Degradation of Dimethyl Phthalate and Diethyl Phthalate by Bacteria Isolated from Jazan, Saudi Arabia
Article ID: e2024025
Author:Nouf A. AL Awaji, Mohammed D. Y. Oteef and Ashraf M. M. Essa
Vol.51 No.2 (March 2024) View: 613 Download:351
Article ID: e2024025
Author:Nouf A. AL Awaji, Mohammed D. Y. Oteef and Ashraf M. M. Essa
Vol.51 No.2 (March 2024) View: 613 Download:351
Isolation of Biofilm Removing Bacteriophages from the Hot Spring of Mae Chan Fault, Chiang Rai, Northern Thailand
Article ID: e2024009
Author:Somboon Kamtaeja, Srinuan Niyom and Nanthanit Jaruseranee
Vol.51 No.1 (January 2024) View: 1,350 Download:402
Article ID: e2024009
Author:Somboon Kamtaeja, Srinuan Niyom and Nanthanit Jaruseranee
Vol.51 No.1 (January 2024) View: 1,350 Download:402
Carbonylacrylic Derivatives and Their Ability to Disrupt Biofilm Formation
page: 1552 - 1558
Author:Pattarapon Pumirat, Thunchanok Tansutat and Chutima Jiarpinitnun
Vol.49 No.6 (November 2022) View: 1,230 Download:312
page: 1552 - 1558
Author:Pattarapon Pumirat, Thunchanok Tansutat and Chutima Jiarpinitnun
Vol.49 No.6 (November 2022) View: 1,230 Download:312
Salicylic Acid Elicitor Inhibiting Xanthomonas oryzae Growth, Motility, Biofilm, Polysaccharides Production, and Biochemical Components during Pathogenesis on Rice
page: 341 - 353
Author:Wannaporn Thepbandit, Natthiya Buensanteai, Kanjana Thumanu, Supatcharee Siriwong, Toan Le Thanh and Dusit Athinuwat
Vol.48 No.2 (March 2021) View: 1,591 Download:768
page: 341 - 353
Author:Wannaporn Thepbandit, Natthiya Buensanteai, Kanjana Thumanu, Supatcharee Siriwong, Toan Le Thanh and Dusit Athinuwat
Vol.48 No.2 (March 2021) View: 1,591 Download:768
Combination of Electrocoagulation and Photocatalysis Process for Dye Removal from Textile Effluent
page: 533 - 544
Author:Supamas Danwittayakul* and Phutthamon Chantes
Vol.48 No.2 (March 2021) View: 613 Download:286
page: 533 - 544
Author:Supamas Danwittayakul* and Phutthamon Chantes
Vol.48 No.2 (March 2021) View: 613 Download:286
Long-term Study of Cu/SiO2 Microspheres as Antimicrobial Additives in Paints
page: 523 - 536
Author:Kanita Boonruang, Panus Sundarapura and Wanwipa Siriwatwechakul*
Vol.46 No.3 (May 2019) View: 674 Download:241
page: 523 - 536
Author:Kanita Boonruang, Panus Sundarapura and Wanwipa Siriwatwechakul*
Vol.46 No.3 (May 2019) View: 674 Download:241
Poly(L-lactide)-Degrading Enzyme from Laceyella sacchari LP175: Cloning, Sequencing, Expression, Characterization and Its Hydrolysis of Poly(L-lactide) Polymer
page: 417 - 430
Author:Thanasak Lomthong, Marie Guicherd, Gianluca Cioci, Sophie Duquesne, Alain Marty, Saisamorn Lumyong and Vichien Kitpreechavanich
Vol.46 No.3 (May 2019) View: 719 Download:385
page: 417 - 430
Author:Thanasak Lomthong, Marie Guicherd, Gianluca Cioci, Sophie Duquesne, Alain Marty, Saisamorn Lumyong and Vichien Kitpreechavanich
Vol.46 No.3 (May 2019) View: 719 Download:385
Self-setting Calcium Phosphate Enhanced with Osteoconduction and Bioactivity for Bone Cement
page: 2132 - 2139
Author:Sirirat Tubsungnoen Rattanachan, Sanong Suksaweang, Ting-Xin Jiang, Randall B. Widelitz, Cheng-Ming Chuong and Nuan La-ong Srakaew
Vol.45 No.5 (Special 2018) View: 734 Download:428
page: 2132 - 2139
Author:Sirirat Tubsungnoen Rattanachan, Sanong Suksaweang, Ting-Xin Jiang, Randall B. Widelitz, Cheng-Ming Chuong and Nuan La-ong Srakaew
Vol.45 No.5 (Special 2018) View: 734 Download:428
RBC Haemolysis Prevention and Antioxidant Activity of Barleria prionitis
page: 888 - 896
Author:Hemant A. Sawarkar*, Pranita P. Kashyap and Chanchal Deep Kaur
Vol.45 No.2 (March 2018) View: 598 Download:271
page: 888 - 896
Author:Hemant A. Sawarkar*, Pranita P. Kashyap and Chanchal Deep Kaur
Vol.45 No.2 (March 2018) View: 598 Download:271
Removal of Microcystin from Lake Water Using an Internal Airlift Loop Ceramic Honeycomb Support Bioreactor
page: 1048 - 1058
Author:Theerasak Somdee* [a], Anchana Somdee [a], John Ruck [b], Margaret Allison [b] and Rachel Page [b]
Vol.43 No.5 (OCTOBER 2016) View: 623 Download:654
page: 1048 - 1058
Author:Theerasak Somdee* [a], Anchana Somdee [a], John Ruck [b], Margaret Allison [b] and Rachel Page [b]
Vol.43 No.5 (OCTOBER 2016) View: 623 Download:654
Biosorption of Lead (II) and Copper (II) from Aqueous
Solution
page: 69 - 81
Author:Woranart Jonglertjunya
Vol.35 No.1 (JANUARY 2008) View: 667 Download:214
page: 69 - 81
Author:Woranart Jonglertjunya
Vol.35 No.1 (JANUARY 2008) View: 667 Download:214
Copyrights © Since 2021 All Rights Reserved by Chiang Mai Journal of Science