Dr Mezbaul Bahar

Dr Mezbaul Bahar

Research Fellow

Global Centre for Environmental Remediation

Career Summary

Biography

Research Expertise

Mezbaul’s research has focused on bioremediation of both organic and inorganic contaminants in soil and water. Mezbaul completed his PhD in 2013 and his thesis was on developing a low-cost bioremediation technology for arsenic contaminated water. His current research interests are ecological and human health risk assessments of contaminants, remediation of petroleum hydrocarbon-contaminated soils and rehabilitation of mine sites.


Qualifications

  • Doctor of Philosophy, University of South Australia
  • Bachelor of Environmental Science, Khulna University - Bangladesh
  • Master of Environmental Studies, University of Tokyo - Japan

Keywords

  • bioremediation
  • heavy metals
  • risk assessment
  • toxicology

Fields of Research

Code Description Percentage
100203 Bioremediation 40
050207 Environmental Rehabilitation (excl. Bioremediation) 30
050206 Environmental Monitoring 30

Professional Experience

UON Appointment

Title Organisation / Department
Research Fellow University of Newcastle
Global Centre for Environmental Remediation
Australia
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Publications

For publications that are currently unpublished or in-press, details are shown in italics.


Chapter (1 outputs)

Year Citation Altmetrics Link
2011 Asaeda T, Gomes PIA, Rashid H, Bahar M, 'Morphology and biomass allocation of perennial emergent plants in different environmental conditions - A Review', Encyclopedia of Environmental Research (2 Volume Set), Nova Science Publishers, New York 769-798 (2011)

Journal article (19 outputs)

Year Citation Altmetrics Link
2017 Mahbub KR, Bahar MM, Labbate M, Krishnan K, Andrews S, Naidu R, Megharaj M, 'Bioremediation of mercury: not properly exploited in contaminated soils!', APPLIED MICROBIOLOGY AND BIOTECHNOLOGY, 101 963-976 (2017) [C1]
DOI 10.1007/s00253-016-8079-2
Co-authors Kannan Krishnan, Megh Mallavarapu, Ravi Naidu
2017 Dong Z, Bahar MM, Jit J, Kennedy B, Priestly B, Ng J, et al., 'Issues raised by the reference doses for perfluorooctane sulfonate and perfluorooctanoic acid', ENVIRONMENT INTERNATIONAL, 105 86-94 (2017) [C1]
DOI 10.1016/j.envint.2017.05.006
Co-authors Luchun Duan, Ravi Naidu, Yanju Liu, Morrow Dong, Dane Lamb
2016 Bahar MM, Megharaj M, Naidu R, 'Oxidation of arsenite to arsenate in growth medium and groundwater using a novel arsenite-oxidizing diazotrophic bacterium isolated from soil', International Biodeterioration and Biodegradation, 106 178-182 (2016) [C1]

© 2015 Elsevier Ltd. An arsenic hyper-tolerant diazotrophic bacterium was isolated from a heavy metal contaminated soil. The pure isolate MM-17 was identified as Azospirillum sp.... [more]

© 2015 Elsevier Ltd. An arsenic hyper-tolerant diazotrophic bacterium was isolated from a heavy metal contaminated soil. The pure isolate MM-17 was identified as Azospirillum sp. based on phylogenetic analysis of 16S rRNA. The strain oxidized 100 µM As(III) to As(V) in both culture media (minimal salts) and real groundwater within 8 and 10 h, respectively. The oxidation of As(III) by this strain was observed within the pH range 5-10 with the best performance at pH 7-8. As(III) oxidation was found to be independent of cell growth which implies the oxidation enzymes are constitutively expressed. The whole cell kinetic study highlighted a lower value of kinetic constant, K s as 32.9 µM As(III), which indicates that the strain MM-17 has greater affinity for As(III). The gene sequence of the large subunit of arsenite oxidase of MM-17 showed 99 and 72% similarity to the large subunit of arsenite oxidase of Stenotrophomonas sp. MM-7 and Sinorhizobium sp. M14, respectively. Sphaeroplasts experiments suggest that arsenite oxidase is a membrane associated protein in MM-17.

DOI 10.1016/j.ibiod.2015.10.019
Citations Scopus - 2Web of Science - 2
Co-authors Ravi Naidu, Megh Mallavarapu
2016 Bahar MM, Megharaj M, Naidu R, 'Influence of phosphate on toxicity and bioaccumulation of arsenic in a soil isolate of microalga Chlorella sp.', Environmental Science and Pollution Research, 23 2663-2668 (2016) [C1]

© 2015, Springer-Verlag Berlin Heidelberg. In this study, the toxicity, biotransformation and bioaccumulation of arsenite and arsenate in a soil microalga, Chlorella sp., were in... [more]

© 2015, Springer-Verlag Berlin Heidelberg. In this study, the toxicity, biotransformation and bioaccumulation of arsenite and arsenate in a soil microalga, Chlorella sp., were investigated using different phosphate levels. The results indicated that arsenate was highly toxic than arsenite to the alga, and the phosphate limitation in growth media greatly enhanced arsenate toxicity. The uptake of arsenate in algal cells was more than that of arsenite, and the predominant species in the growth media was arsenate after 8¿days of exposure to arsenite or arsenate, indicating arsenite oxidation by this microalga. Arsenate reduction was also observed when the alga was incubated in a phosphate-limiting growth medium. Similar to the process of biotransformation, the alga accumulated more arsenic when it was exposed to arsenate and preferably more in a phosphate-limiting condition. Although phosphate significantly influences the biotransformation and bioaccumulation of arsenic, the oxidizing ability and higher accumulation capacity of this alga have great potential for its application in arsenic bioremediation.

DOI 10.1007/s11356-015-5510-7
Citations Scopus - 10Web of Science - 8
Co-authors Ravi Naidu, Megh Mallavarapu
2013 Bahar MM, Megharaj M, Naidu R, 'Bioremediation of Arsenic-Contaminated Water: Recent Advances and Future Prospects', WATER AIR AND SOIL POLLUTION, 224 (2013)
DOI 10.1007/s11270-013-1722-y
Citations Scopus - 14Web of Science - 9
Co-authors Megh Mallavarapu, Ravi Naidu
2013 Bahar MM, Megharaj M, Naidu R, 'Bioremediation of arsenic-contaminated water: Recent advances and future prospects topical collection on remediation of site contamination', Water, Air, and Soil Pollution, 224 (2013)

Arsenic contamination of groundwater and surface water is widespread throughout the world. Considering its carcinogenicity and toxicity to human and animal health, remediation of ... [more]

Arsenic contamination of groundwater and surface water is widespread throughout the world. Considering its carcinogenicity and toxicity to human and animal health, remediation of arsenic-contaminated water has become a high priority. There are several physicochemical-based conventional technologies available for removing arsenic from water. However, these technologies possess a number of limitations such as high cost and generation of toxic by-products, etc. Therefore, research on new sustainable and cost-effective arsenic removal technologies for water has recently become an area of intense research activity. Bioremediation technology offers great potential for possible future application in decontamination of pollutants from the natural environment. It is not only environmentally friendly but cost-effective as well. This review focuses on the state-of-art knowledge of currently available arsenic remediation methods, their prospects, and recent advances with particular emphasis on bioremediation strategies. © 2013 Springer Science+Business Media Dordrecht.

DOI 10.1007/s11270-013-1722-y
Citations Scopus - 5
Co-authors Ravi Naidu, Megh Mallavarapu
2013 Bahar MM, Megharaj M, Naidu R, 'Kinetics of arsenite oxidation by Variovorax sp MM-1 isolated from a soil and identification of arsenite oxidase gene', JOURNAL OF HAZARDOUS MATERIALS, 262 997-1003 (2013) [C1]
DOI 10.1016/j.jhazmat.2012.11.064
Citations Scopus - 18Web of Science - 13
Co-authors Ravi Naidu, Megh Mallavarapu
2013 Bahar MM, Megharaj M, Naidu R, 'Toxicity, transformation and accumulation of inorganic arsenic species in a microalga Scenedesmus sp isolated from soil', JOURNAL OF APPLIED PHYCOLOGY, 25 913-917 (2013) [C1]
DOI 10.1007/s10811-012-9923-0
Citations Scopus - 13Web of Science - 11
Co-authors Ravi Naidu, Megh Mallavarapu
2012 Bahar MM, Megharaj M, Naidu R, 'Arsenic bioremediation potential of a new arsenite-oxidizing bacterium Stenotrophomonas sp MM-7 isolated from soil', BIODEGRADATION, 23 803-812 (2012)
DOI 10.1007/s10532-012-9567-4
Citations Scopus - 36Web of Science - 28
Co-authors Ravi Naidu, Megh Mallavarapu
2012 Islam MN, Rahman K-S, Bahar MM, Habib MA, Ando K, Hattori N, 'Pollution attenuation by roadside greenbelt in and around urban areas', URBAN FORESTRY & URBAN GREENING, 11 460-464 (2012)
DOI 10.1016/j.ufug.2012.06.004
Citations Scopus - 26Web of Science - 20
2010 Bahar MM, Reza MS, 'Hydrochemical characteristics and quality assessment of shallow groundwater in a coastal area of Southwest Bangladesh', ENVIRONMENTAL EARTH SCIENCES, 61 1065-1073 (2010)
DOI 10.1007/s12665-009-0427-4
Citations Scopus - 41Web of Science - 39
2008 Bahar MM, Uddin MN, Islam MA, Harun AYA, 'Extensive shrimp culture in the coastal areas of Bangladesh: An alarming threat to Mangrove ecosystem', Journal of Science Foundation, 6 56-64 (2008)
2008 Bahar MM, Yamamuro M, 'Assessing the influence of watershed land use patterns on the major ion chemistry of river waters in the Shimousa Upland, Japan', Chemistry and Ecology, 24 341-355 (2008)

To assess the influence of land use pattern on the major ion chemistry of river water, seasonal changes in major ion concentrations were studied in the Shimousa Upland, Japan wher... [more]

To assess the influence of land use pattern on the major ion chemistry of river water, seasonal changes in major ion concentrations were studied in the Shimousa Upland, Japan where urbanisation is still in progress. Water samples were collected from 24 sites from the Ohori River basin and analysed four times representing four seasons from August 2006 to April 2007 during baseflow or low flow conditions. The proportion of different land uses in the drainage area of each sampling site were estimated from a detailed digital land use map published by the Geographical Survey Institute of Japan by using Arcview/GIS. Electrical conductivity (EC) and the concentrations of Na + , K + , Cl - and NO 3 - showed significant seasonal variation (p = 0.05). The correlation analysis results showed that forested areas had negative correlations with all ions. Farmland coverage was significantly associated with elevated levels of K + , NO 3 - and SO 4 2 (p = 0.05). Urban land use appeared to have the greatest influence on the major ion chemistry. Residential areas showed significant positive correlations with K + , Mg 2+ , Ca 2+ , NO 3 - and SO 2 4 , commercial areas with Mg 2+ , Ca 2+ and HCO 3 - , and urban developing areas with Ca 2+ (p = 0.05). Cluster analysis (CA) on water quality parameters showed three different groups of similarity between the sampling sites and found them to be highly influenced by land use. It can be concluded that estimating the proportions of different land uses enables us to predict river water quality with respect to major ion concentrations.

DOI 10.1080/02757540802342291
Citations Scopus - 13
2008 Bahar MM, Ohmori H, Yamamuro M, 'Relationship between river water quality and land use in a small river basin running through the urbanizing area of Central Japan', Limnology, 9 19-26 (2008)

In this study, the relationship between water quality (as represented by major inorganic ion concentrations) and land use characteristics is examined for a small river basin which... [more]

In this study, the relationship between water quality (as represented by major inorganic ion concentrations) and land use characteristics is examined for a small river basin which runs through the urbanizing area of central Japan. Water samples were taken from 24 sites at base flow and analyzed, and the proportions of the various land uses associated with the respective drainage basins were calculated using a digital land-use map (scale: 1:25000). The electrical conductivity (EC) of the water ranged from 84.5 to 600 µS cm -1 . Ca 2+ and Na + were the major cations, accounting for 77% of all cations. Among the anions, HCO 3 - was dominant (56%), followed by Cl - (24%), SO 4 2- (13%) and NO 3 - (7%). Applying principal component analysis to land use in the drainage basin yielded three principal components. The first principal component expressed the degree of occupation by residential areas, the second indicated the degree of urban developing area (i.e., fast-developing and industrial areas), and the third showed the degree of coverage with farmland and green space. The residential area showed significant positive correlations with K + , Mg 2+ , Ca 2+ , NO 3 - , HCO 3 - , EC and TMI (total major ions). Urban developing area showed significant positive correlations with Ca 2+ , Cl - , HCO 3 - , EC and TMI as well as weak negative correlations with NO 3 - and SO 4 2- . Industrial area showed weak positive correlations with Na + and Cl - and a moderate negative correlation with NO 3 - . Farmland showed significant positive correlations with NO 3 - ; and SO 4 2- ; these ions are present due to fertilizers and the biological activity of plants. Forest area is inversely related to almost all ions, indicating the need for this form of land use in order to maintain river water quality. © The Japanese Society of Limnology 2008.

DOI 10.1007/s10201-007-0227-z
Citations Scopus - 32
2007 Harun AYA, Uddin MN, Islam MA, Bahar MM, 'Effects of small scale water development projects on fisheries: A case study from saline water subprojects', Khulna University Studies, 8 57-63 (2007)
2006 Uddin MN, Bahar MM, Islam MA, Harun AYA, 'An evaluation of water supply scenario in Khulna City Corporation area', Khulna University Studies, 7 33-36 (2006)
2005 Zuthi MFR, Bahar MM, 'A comparative risk assessment of hazardous toxic and potentially toxic elements generating from coal fired power plant and waste water treatment plant', Khulna University Studies, 6 25-28 (2005)
2005 Uddin MN, Bahar MM, Islam MA, Harun AYA, 'Options for development of water supply systems in Khulna City Corporation area: A sustainable approach', Khulna University Studies, 3 11-15 (2005)
2003 Azad AK, Bahar MM, Sultana J, 'Study on the use of biomass as cooking fuel in a village peripheral to the Sundarbans. Journal of Science Foundation', Journal of Science Foundation, 1 35-41 (2003)
Show 16 more journal articles

Conference (2 outputs)

Year Citation Altmetrics Link
2012 Bahar MM, Megharaj M, Naidu R, 'Oxidation of arsenic (III) by a Stenotrophomonas sp. isolated from soil', Understanding the Geological and Medical Interface of Arsenic, As 2012 - 4th International Congress: Arsenic in the Environment (2012)

The involvement of microorganism in global cycling of arsenic is well-known. Arsenite-oxidizing bacteria play an important role in reducing arsenic toxicity and mobility in arseni... [more]

The involvement of microorganism in global cycling of arsenic is well-known. Arsenite-oxidizing bacteria play an important role in reducing arsenic toxicity and mobility in arsenic contaminated environment. In this study, a gram negative bacterium, MM-7 able to efficiently oxidize arsenite [As (III)] to arsenate [As (V)] was isolated from soil. The 16S rRNA analysis revealed that the strain is a close relative to Stenotrophomonas panacihumi with 99% identity. The presence of the arsenite oxidase gene was detected in this bacterium. The amino acid sequences of the arsenite oxidase from MM-7 showed the highest identity with the arsenite oxidase from Bosea sp. (67%). To our knowledge, this is the first report of As (III) oxidation by Stenotrophomonas sp. This strain has great potential for remediation of arsenic contaminated water. © 2012 Taylor & Francis Group.

Co-authors Megh Mallavarapu, Ravi Naidu
2012 Megharaj M, Bahar MM, Naidu R, 'Bioremediation of arsenic contaminated water: Prospects and recent advances', Understanding the Geological and Medical Interface of Arsenic, As 2012 - 4th International Congress: Arsenic in the Environment (2012)

Arsenic contamination of groundwater and surface water is widespread throughout the world. Due to its carcinogenicity and toxicity to human and animal health, remediation of arsen... [more]

Arsenic contamination of groundwater and surface water is widespread throughout the world. Due to its carcinogenicity and toxicity to human and animal health, remediation of arsenic contaminated water has become a high priority. There are several physico-chemical based conventional technologies available for arsenic removal from water. However, these technologies have some limitations such as high cost, generation of toxic by-products etc. Therefore, research on sustainable and cost-effective arsenic removal technologies for water has gained enormous attention recently. This paper will focus on the state-of-art knowledge on the currently available arsenic remediation methods, their prospects and recent advances with particular emphasis on bioremediation approaches. © 2012 Taylor & Francis Group.

Co-authors Ravi Naidu, Megh Mallavarapu
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Grants and Funding

Summary

Number of grants 7
Total funding $1,132,191

Click on a grant title below to expand the full details for that specific grant.


20172 grants / $88,800

Finucane Island and Nelson Point vapour modelling and site assessment$61,200

Funding body: CRC CARE Pty Ltd

Funding body CRC CARE Pty Ltd
Project Team Doctor Dawit Bekele, Professor Ravi Naidu, Doctor Yanju Liu, Doctor Mezbaul Bahar
Scheme Research Project
Role Investigator
Funding Start 2017
Funding Finish 2017
GNo G1700831
Type Of Funding CRC - Cooperative Research Centre
Category 4CRC
UON Y

Remediation Action Plan for OFTG, Nelson Point$27,600

Funding body: CRC CARE Pty Ltd

Funding body CRC CARE Pty Ltd
Project Team Doctor Mezbaul Bahar, Doctor Dawit Bekele, Doctor Yanju Liu, Dr Sreenivasulu Chadalavada, Dr Prashant Srivastava
Scheme Research Project
Role Lead
Funding Start 2017
Funding Finish 2017
GNo G1700832
Type Of Funding CRC - Cooperative Research Centre
Category 4CRC
UON Y

20164 grants / $761,956

Development of a risk based land management tool to assist decision making at derelict mine sites$354,000

Funding body: CRC CARE Pty Ltd

Funding body CRC CARE Pty Ltd
Project Team

Professor Ravi Naidu, Dr Dane Lamb, Dr Jianhua Du, Dr Liang Wang, Dr Peter Sanderson, Dr Morrow Dong, Dr Mezbaul Bahar, Dr Prasath Annamalai, Dr Balaji Seshadri, Mr Mohammed Kader

Scheme Research Project
Role Investigator
Funding Start 2016
Funding Finish 2017
GNo
Type Of Funding CRC - Cooperative Research Centre
Category 4CRC
UON N

Human Health Risk Assessment from Old Railway Sleepers - Port Hedland and Newman Mainline, WA$158,300

Funding body: CRC CARE Pty Ltd

Funding body CRC CARE Pty Ltd
Project Team Doctor Dawit Bekele, Professor Ravi Naidu, Doctor Morrow Dong, Doctor Yanju Liu, Doctor Jianhua Du, Doctor Mezbaul Bahar, Dr Prashant Srivastava
Scheme Research Project
Role Investigator
Funding Start 2016
Funding Finish 2016
GNo G1600616
Type Of Funding CRC - Cooperative Research Centre
Category 4CRC
UON Y

Enhanced In situ Bioremediation of TCE towards closure of Site 14, EDP Edinburgh $143,015

Funding body: CRC CARE Pty Ltd

Funding body CRC CARE Pty Ltd
Project Team Doctor Dawit Bekele, Professor Ravi Naidu, Doctor Mezbaul Bahar, Dr Sreenivasulu Chadalavada
Scheme Research Project
Role Investigator
Funding Start 2016
Funding Finish 2016
GNo G1700313
Type Of Funding CRC - Cooperative Research Centre
Category 4CRC
UON Y

Bioremediation of hydrocarbon contaminated soils from the Former Rail Loop Ponds at Mount Whaleback – Laboratory Biopile Study$106,641

Funding body: CRC CARE Pty Ltd

Funding body CRC CARE Pty Ltd
Project Team Doctor Mezbaul Bahar, Professor Ravi Naidu, Doctor Thava Palanisami, Dr Prashant Srivastava
Scheme Research Project
Role Lead
Funding Start 2016
Funding Finish 2017
GNo G1600698
Type Of Funding CRC - Cooperative Research Centre
Category 4CRC
UON Y

20131 grants / $281,435

Pilot scale bioremediation of hydrocarbon contaminated soils at Mt Whaleback$281,435

Funding body: CRC CARE Pty Ltd

Funding body CRC CARE Pty Ltd
Project Team

Euan Smith, Grant Mathieson, Thavamani Palanisami, Kavitha Ramadass, Mezbaul Bahar, Megharaj Mallavarapu, Prashant Srivastava, Ravi Naidu

Scheme Research Project
Role Investigator
Funding Start 2013
Funding Finish 2014
GNo
Type Of Funding External
Category EXTE
UON N
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Research Supervision

Number of supervisions

Completed0
Current1

Total current UON EFTSL

PhD0.5

Current Supervision

Commenced Level of Study Research Title Program Supervisor Type
2017 PhD Improvement of Soil Health by Organic Waste Application and its Impact on Heavy Metal Dynamics in Contaminated Soil PhD (Environment Remediation), Faculty of Science, The University of Newcastle Co-Supervisor
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Research Collaborations

The map is a representation of a researchers co-authorship with collaborators across the globe. The map displays the number of publications against a country, where there is at least one co-author based in that country. Data is sourced from the University of Newcastle research publication management system (NURO) and may not fully represent the authors complete body of work.

Country Count of Publications
Australia 11
Bangladesh 4
Japan 3
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Dr Mezbaul Bahar

Position

Research Fellow
Global Centre for Environmental Remediation (GCER)
Global Centre for Environmental Remediation
Faculty of Science

Contact Details

Email mezbaul.bahar@newcastle.edu.au
Phone (02) 4913 8747

Office

Room 110
Building Advanced Technology Centre.
Location Callaghan Campus
University Drive
Callaghan, NSW 2308
Australia
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