Integration of membrane bioreactor and nanofiltration for the treatment process of real hospital wastewater in Ho Chi Minh City, Vietnam
Hospital wastewater contains pharmaceutical residues, chemicals, and pathogens that cause coloration and nourish pathogenic microorganisms. The objective of the study was to evaluate the effectiveness of a medical wastewater treatment system at Military Hospital 175 (Ho Chi Minh City, Vietnam) that...
| Main Authors: | , , , , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2019
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/96239 http://hdl.handle.net/10220/48528 |
| _version_ | 1824455995380727808 |
|---|---|
| author | Tran, Thanh Hoang, Luong Ho, Huu Loc Nguyen, Thanh Binh Le, Duc Anh Lam, Tri Duc Nguyen, Duy Chinh Hoang, Anh Tuan Do, Trung Sy Nguyen, Trinh Duy Bach, Long Giang |
| author2 | Nanyang Environment and Water Research Institute |
| author_facet | Nanyang Environment and Water Research Institute Tran, Thanh Hoang, Luong Ho, Huu Loc Nguyen, Thanh Binh Le, Duc Anh Lam, Tri Duc Nguyen, Duy Chinh Hoang, Anh Tuan Do, Trung Sy Nguyen, Trinh Duy Bach, Long Giang |
| author_sort | Tran, Thanh |
| collection | NTU |
| description | Hospital wastewater contains pharmaceutical residues, chemicals, and pathogens that cause coloration and nourish pathogenic microorganisms. The objective of the study was to evaluate the effectiveness of a medical wastewater treatment system at Military Hospital 175 (Ho Chi Minh City, Vietnam) that combined a membrane bioreactor (MBR) system with nanofiltration (NF). The influent of the system was the wastewater discharged from the operating rooms of the hospital. The system has a capacity of 50 L/day and operates at three organic load rates (OLR) of 0.5, 1.5 and 2.5 kgCOD/m3day (COD: Chemical oxygen demand), in which each load rate operates for 40 days. The results showed that most nutritional criteria generally achieved positive results. Specifically, the average COD removal was shown to be consistently high throughout the three phases at 94%, 93.3%, and 92.7%, respectively. For removal of nitrogen, the system demonstrated efficiencies of 75%, 79%, and 83%, respectively, to three phases. The log removal value (LRV) for Escherichia coli and coliform bacteria were higher than four throughout the study period. The average removal efficiency for color and total iron was approximately 98% and 99%, respectively. The water quality after treatment, especially after NF, meets the Vietnamese standard of grade A. The arrangement in which the MBR preceded NF was also found to limit the amount of soil and solids entering subsequent treatment, which therefore improved the efficiency of NF, as demonstrated by the stability of post-NF transmembrane pressures throughout three cycles renewed by two backwashes. |
| first_indexed | 2025-02-19T03:47:04Z |
| format | Journal Article |
| id | ntu-10356/96239 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2025-02-19T03:47:04Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | ntu-10356/962392020-09-26T22:03:35Z Integration of membrane bioreactor and nanofiltration for the treatment process of real hospital wastewater in Ho Chi Minh City, Vietnam Tran, Thanh Hoang, Luong Ho, Huu Loc Nguyen, Thanh Binh Le, Duc Anh Lam, Tri Duc Nguyen, Duy Chinh Hoang, Anh Tuan Do, Trung Sy Nguyen, Trinh Duy Bach, Long Giang Nanyang Environment and Water Research Institute Membrane Bioreactor Nanofiltration DRNTU::Engineering::Environmental engineering Hospital wastewater contains pharmaceutical residues, chemicals, and pathogens that cause coloration and nourish pathogenic microorganisms. The objective of the study was to evaluate the effectiveness of a medical wastewater treatment system at Military Hospital 175 (Ho Chi Minh City, Vietnam) that combined a membrane bioreactor (MBR) system with nanofiltration (NF). The influent of the system was the wastewater discharged from the operating rooms of the hospital. The system has a capacity of 50 L/day and operates at three organic load rates (OLR) of 0.5, 1.5 and 2.5 kgCOD/m3day (COD: Chemical oxygen demand), in which each load rate operates for 40 days. The results showed that most nutritional criteria generally achieved positive results. Specifically, the average COD removal was shown to be consistently high throughout the three phases at 94%, 93.3%, and 92.7%, respectively. For removal of nitrogen, the system demonstrated efficiencies of 75%, 79%, and 83%, respectively, to three phases. The log removal value (LRV) for Escherichia coli and coliform bacteria were higher than four throughout the study period. The average removal efficiency for color and total iron was approximately 98% and 99%, respectively. The water quality after treatment, especially after NF, meets the Vietnamese standard of grade A. The arrangement in which the MBR preceded NF was also found to limit the amount of soil and solids entering subsequent treatment, which therefore improved the efficiency of NF, as demonstrated by the stability of post-NF transmembrane pressures throughout three cycles renewed by two backwashes. Published version 2019-06-04T05:50:31Z 2019-12-06T19:27:42Z 2019-06-04T05:50:31Z 2019-12-06T19:27:42Z 2019 Journal Article Tran, T., Nguyen, T. B., Ho, H. L., Le, D. A., Lam, T. D., Nguyen, D. C., . . . Bach, L. G. (2019). Integration of membrane bioreactor and nanofiltration for the treatment process of real hospital wastewater in Ho Chi Minh City, Vietnam. Processes, 7(3), 123-. doi:10.3390/pr7030123 2227-9717 https://hdl.handle.net/10356/96239 http://hdl.handle.net/10220/48528 10.3390/pr7030123 en Processes © 2019 The Author(s). Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). 13 p. application/pdf |
| spellingShingle | Membrane Bioreactor Nanofiltration DRNTU::Engineering::Environmental engineering Tran, Thanh Hoang, Luong Ho, Huu Loc Nguyen, Thanh Binh Le, Duc Anh Lam, Tri Duc Nguyen, Duy Chinh Hoang, Anh Tuan Do, Trung Sy Nguyen, Trinh Duy Bach, Long Giang Integration of membrane bioreactor and nanofiltration for the treatment process of real hospital wastewater in Ho Chi Minh City, Vietnam |
| title | Integration of membrane bioreactor and nanofiltration for the treatment process of real hospital wastewater in Ho Chi Minh City, Vietnam |
| title_full | Integration of membrane bioreactor and nanofiltration for the treatment process of real hospital wastewater in Ho Chi Minh City, Vietnam |
| title_fullStr | Integration of membrane bioreactor and nanofiltration for the treatment process of real hospital wastewater in Ho Chi Minh City, Vietnam |
| title_full_unstemmed | Integration of membrane bioreactor and nanofiltration for the treatment process of real hospital wastewater in Ho Chi Minh City, Vietnam |
| title_short | Integration of membrane bioreactor and nanofiltration for the treatment process of real hospital wastewater in Ho Chi Minh City, Vietnam |
| title_sort | integration of membrane bioreactor and nanofiltration for the treatment process of real hospital wastewater in ho chi minh city vietnam |
| topic | Membrane Bioreactor Nanofiltration DRNTU::Engineering::Environmental engineering |
| url | https://hdl.handle.net/10356/96239 http://hdl.handle.net/10220/48528 |
| work_keys_str_mv | AT tranthanh integrationofmembranebioreactorandnanofiltrationforthetreatmentprocessofrealhospitalwastewaterinhochiminhcityvietnam AT hoangluong integrationofmembranebioreactorandnanofiltrationforthetreatmentprocessofrealhospitalwastewaterinhochiminhcityvietnam AT hohuuloc integrationofmembranebioreactorandnanofiltrationforthetreatmentprocessofrealhospitalwastewaterinhochiminhcityvietnam AT nguyenthanhbinh integrationofmembranebioreactorandnanofiltrationforthetreatmentprocessofrealhospitalwastewaterinhochiminhcityvietnam AT leducanh integrationofmembranebioreactorandnanofiltrationforthetreatmentprocessofrealhospitalwastewaterinhochiminhcityvietnam AT lamtriduc integrationofmembranebioreactorandnanofiltrationforthetreatmentprocessofrealhospitalwastewaterinhochiminhcityvietnam AT nguyenduychinh integrationofmembranebioreactorandnanofiltrationforthetreatmentprocessofrealhospitalwastewaterinhochiminhcityvietnam AT hoanganhtuan integrationofmembranebioreactorandnanofiltrationforthetreatmentprocessofrealhospitalwastewaterinhochiminhcityvietnam AT dotrungsy integrationofmembranebioreactorandnanofiltrationforthetreatmentprocessofrealhospitalwastewaterinhochiminhcityvietnam AT nguyentrinhduy integrationofmembranebioreactorandnanofiltrationforthetreatmentprocessofrealhospitalwastewaterinhochiminhcityvietnam AT bachlonggiang integrationofmembranebioreactorandnanofiltrationforthetreatmentprocessofrealhospitalwastewaterinhochiminhcityvietnam |