1 environmental water chemistry @ griffin qingguo “jack” huang department of crop and soil...

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1 Environmental Water Chemistry @ Griffin Qingguo “Jack” Huang Department of Crop and Soil Sciences University of Georgia

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1

Environmental Water Chemistry @ Griffin

Qingguo “Jack” HuangDepartment of Crop and Soil Sciences

University of Georgia

2

Laboratory• Major Equipment

• HPLC/MS/MS • GC/MS• Scanning UV/Vis• Liquid Scintillation Counter • HPLC-PDA-Florescence• FTIR• Freeze dryer• Biological oxidizer

3

Group Members• Ph.D. Students

• Rashmi Singh (2008-)• Sudeep Sidhu (2008-)• Lisa Luo (2011-)

• MS Students• Liwen Zhang (2008-)• Lisa Luo (2008-2010)

• Postdoc • Junhe Lu (2007-2010)

• Visiting Ph.D. Students• Liang Mao (Nanjing University) (2007-09)• Lina Zhou (Northwest A&F University)

• Undergraduate Students• Michelle Gerlosky 2008 • Matthew Aderhold 2011 • James Byrd 2011

4

General Theme

Chemical analysisMolecular identification

Environmentalbehaviors

Molecular basis

5

Catalysis

Research Area

Emerging Contaminants

Plant Materials

Nanoparticles

6

Emerging Contaminants: Enzyme catalysis

0

4

8

12

16

20

24

0 0.5 3 5 10 20 30 60 90

E2

Co

nc

en

tra

tio

n (

uM

)

Reaction Time (min)

without VA or NOM with VA with NOM with VA and NOM

1. Mao et al. Environ. Sci. Technol., 20092. Mao et al. Environ. Sci. Technol., 20103. Lu J. et al. Environ. Sci. Technol., 20104. Lu J. et al. Environ. Sci. Technol., 2010

7

Emerging Contaminants: PFOA

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

O

O

O

F

F

F

F

F

F

F

F

F

F

F

F

F

C

F

F

+ CO2

F

F

F

F

F

F

F

F

F

F

F F

F

F+ F

O

F C

F

F

F

F

F

F

F

F

F

F

+

F

F

F

F

F F

F

F + F

Flow

CaO2 + Sands Sands-enzymeSands

Flow

CaO2 + Sands Sands-enzymeSands

Colosi et al., 2009, Environ. Toxi. Chem.

DoD SERDP, $150,000, PI Huang Remediation of Perfluoroakyl Contaminated Aquifer using an In-Situ Two-Layer Barrier: Laboratory Batch and Column Study

8

Carbon Nanotubes

SEM (140,721 x).TEM (100K x).

HRTEM (300K x).

9

EPA STAR Grant ($383,376)Environmental Behaviors of

Solubilized Carbon Nanotubes in Aquatic Systems: Transformation, Sorption, and Toxicity Exposure

PI Qingguo HuangCo-PIs Marsha Black, Zhengwei Pan

Phase Distribution Transformation Bioavailability to fish

833321

Aqueous MWNTs (mg/L)

0 10 20 30 40 50 60 70

Set

tled

MW

NT

s (m

g)-0.1

0.0

0.1

0.2

0.3

0.4

0.5

Blank 0 mMBlank 4 mMBlank 40 mMDOM 0 mMDOM 4 mMDOM 40 mM

1. Petersen et al. 2008, Environ. Sci. Technol.2. Petersen et al., 2008, Environ. Health Persp. 3. Liu X.Y. et al., 2009, Environ. Sci. Technol.4. Zhang L. et al., 2011, Environ. Sci. Technol.

10

20 nm

0.0

0.2

0.4

0.6

0.8

1.0

0 1 2 3 4

Time (hours)

C/C

0

Without Iron With Iron

Ln(C/C0) = -0.0849tR2 = 0.9209

-0.4

-0.3

-0.2

-0.1

0.0

0 1 2 3 4

t (hrs)

Ln(C

/C0)

1. Huang et al. 2008, Environ. Sci. Technol.2. Xiao et al. 2009, ACS Applied Materials 3. Shen M. et al. 2009, J. Phy. Chem.4. Xiao et al. 2010, J. Materials Chem.

Iron Nanoparticles

11

A novel Bio-dethatch Approach

U.S. provisional patent “Methods and compositions using fungal laccases to reduce turf thatch (61/388,160).

12

Publications & Grants @ UGA• 22 peer-reviewed journal articles (12 as senior

authors• Grants

• EPA STAR ($383, 376), PI• DoD SERDP ($150,000), PI• GCSAA ($40K), PI• EPA region 4 ($67,615), Co-PI• GA EPD ($25K), Co-PI• Sea Grant ($150K), Co-PI

13

Collaboration and Service• Collaborators

• UGA (in/outside department), outside UGA

• Affiliations• UGA (NanoSEC, Tox, Engineering)• Professional (SSSA, ACS)

• Committees• Interdisciplinary toxicology program graduate admission

committee (2010-)• Griffin Campus Laboratory Safety Committee Chair (2011-)• Griffin Campus Employee Council Member (2008-10)• Griffin Campus Visitors Housing Committee Member (2009-)• CAES Faculty Affair and Grievance Committee member (2008-)• CAES Griffin Campus Scholarship Review Committee member

(2010-)

14

Professional Activities• Manuscripts review (47 since 2007)• Meeting presentations

• 21 total by members from my group (7 SSSA, 5 ACS)• 12 total by myself (2 SSSA, 2 ACS)

• Symposium Organization• SSSA annual meeting, 2011, in process

“Environmental Fate, Transport, Transformation of Organic Contaminants in Soil/Water Systems”

• Grants Review• NSF Environmental Engineering (panel)• United states-Israel Bi-national Science Foundation

• Scholarship Review• EPA GRO graduate fellowship

15

Professional Activities• Invited talks

• Nanjing University, China, May 2007• Savannah River Ecology Laboratory, May 2007• Nanjing University, China, June 2009• Donghua University, China, June 2009• Queen’s University, Canada, March 2010 • The Asia/Pacific chapter of the Society of Environmental

Toxicology and Chemistry 2010 Conference, Guangzhou, China, June 2010

• Shanghai Academy of Agricultural Sciences, Shanghai, China, June 2010

• Nanjing Agricultural University, Nanjing, China, June 2010• Jiangnan University, Wuxi, China, June 2010• Donghua University, Shanghai, China, June 2010• Georgia Institute of Technology, October 2010• Michigan State University, December 2010

16

Recognitions• Baiyulan award, 2010• Students honor

• First place student presentation, ASA - Southern Branch meeting, 2011.

• First place student poster presentation, SSSGA annual meeting, 2011.

• Second place student presentation, ACS 240th National meeting, 2010

• First place  graduate student oral presentation, C-05 Industry Division, ASA meeting, 2010

• Second place student presentation, Combined Carolinas and Georgia SECTAC Annual meeting, 2010

• Second place poster presentation award at AWWA annual meeting, 2008.

17

Teaching & Extension• Teaching

• Introduction to Water Quality (1.95, 1.15, 1.32)• Chemical Analysis of Environmental Samples (1.60,

1.58)

• Extension• GGCSA/USGA• Georgia turf field day• Griffin water works

18

Thanks!