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Lori A. Stone, P.E.
Ms. Stone is the Principal and owner of LA STONE LLC providing sustainable
strategy and solutions for the wastewater profession. She was recently the
Biosolids Global Practice and Technology Leader for Black & Veatch. Lori has
over 20 years of technical and managerial experience in the environmental
engineering field, with a specialization in biosolids management, treatment,
and use.
PRINCIPAL
LA STONE LLC
Lori has a long track-record working with professional associations to
advance biosolids management practices. She served as the EMS Project
Director for the National Biosolids Partnership, a consortium of the U.S. EPA,
National Association of Clean Water Agencies (NACWA) and the Water
Environment Federation (WEF). In this role, she worked with agencies to go
beyond minimum regulatory requirements and to address related
environmental and public challenges more effectively. She established the
first biosolids management committee for the Chesapeake Water Environment
and also served as CWEA secretary, vice president, and president. In addition
to her volunteer leadership role with the CWEA, Ms. Stone is involved with the
Water Environment Federation’s National Residuals and Biosolids
Management Committee, and also stays active in the Virginia Water
Environment Association.
Leesburg, VA
She has authored numerous papers, chaired workshops, and made
presentations regarding solids management at national and regional
conferences. She was a primary author for the Water Environment
Federation's (WEF) Manual of Practice (MOP) on successful biosolids use
practices and the MOP for biosolids stabilization.
PE – 1996, VA, 026630
PROJECT EXPERIENCE
Water Environment Research Foundation | Guidelines for Demonstration
Programs
Principal Investigator. Preparing representative case studies based on a list
of attributes, industry-accepted models and demonstration programs of
interest, including various partners and research goals. Common elements
and best practices will be described to help utilities employ innovation into
their organizations.
Specialization:
Biosolids and residuals
management,
treatment and use
Office Location
Education
 Career Switcher
Teaching Program, Old
Dominion University,
Northern Virginia
Campus, 2003
 MS, Environmental
Engineering, Virginia
Polytechnic Institute
and State University,
1989
 BS, Civil Engineering,
Minor in Geology,
Virginia Polytechnic
Institute and State
University, 1986
Professional
Registration
Professional
Associations
 Chesapeake Water
Environment
Association
 National Biosolids
Partnership
 Virginia Water
Environment
Association
 Water Environment
Federation
Year Career Started
1989
Years with B&V
1991-1996, 2008 - 2012
Water Environment Research Foundation | Barriers and Solutions to
Energy Efficiency and Resource Recovery
Technical Advisor. Assisting in the identification of barriers to energy
efficiency and resource recovery as a subconsultant to Brown and Caldwell.
Project involves a national, comprehensive survey of utilities, focus group
meetings to delve in barriers and document strategies and solutions to
support energy efficient operations at WRRFs.
Fairfax County Solids Rehabilitation Project | Fairfax County, VA
Planning Specialist. Leading the preliminary engineering phase to upgrade
the solids treatment and processing at the Noman M Cole Jr. Pollution Control
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Plant (NMCPCP). Critical upgrade elements include compliance with the SSI
MACT federal regulations, as well as the addition of energy recovery facilities.
Fairfax County Biosolids Management Study Peer Review | Fairfax
County, VA
Biosolids Expert. Participated with a team of biosolids management experts
to conduct a peer review of the Biosolids Study prepared by Parson Water for
the NMCPCP. A review of the evaluation process and nine shortlisted options
was conducted, with a summary presentation and report provided to County
personnel.
Water Environment Research Foundation | Co-digestion of Organic
Wastes – Addressing Operational Side-effects
Technical Advisor. Co-sponsored by WERF and the New York State Energy
Research and Development Authority, this project involves a group of
consultants to evaluate utility practices, conduct lab-scale tests, and develop
case studies regarding the co-digestion of a range of high-strength wastes.
Hampton Roads Sanitation District | Biosolids Resource Recovery Master
Plan, VA
Project Manager. Conducted a system-wide assessment of biosolids resource
recovery alternatives for a multi-plant utility to address changes in biosolids
reuse/disposal and incineration regulations, public perception, and a
heightened awareness of the need for improved management of energy
resources and sustainability in wastewater treatment and solids management
operations. Additional consulting services to develop an implementation and
optimization of existing incineration system were completed to comply with
the federal SSI MACT standards.
Water Environment Research Foundation | Barriers to Biogas Utilization,
Alexandria, VA
Co-Principal Investigator. Evaluated wastewater utility barriers to biogas
utilization based on responses to an electronic survey and focus group
meetings held across the U.S. to better understand obstacles associated with
the recovery and use of biogas, and to develop strategies to overcome them.
Water Environment Federation | Biogas Data Collection Project,
Alexandria, VA
Co-Project Manager. Working with NEBRA, and other regional biosolids
associations to assess the current and potential utilization of biogas from U.S.
wastewater treatment plants for energy production.
Water Environment Research Foundation | Energy Management
Exploratory Team Assistance, Alexandria, VA
Project Manager. Assisted the WERF Energy Program Director to develop
the state of the science summary of energy efficiency and production practices
for wastewater treatment plants striving towards energy-neutrality. A
consensus –based process with the diverse Exploratory Team led to the
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identification and approval of several research projects for funding and
implementation over the next five years. Fact sheets were developed for
subscriber distribution.
National Association of Clean Water Agencies (NACWA) | Renewable
Resources Whitepaper, DC
Project Manager. Developed a white paper on biosolids as a renewable
energy resource, and presented the technological, financial, legislative, and
public perception obstacles to broader implementation of energy recovery
from biosolids.
Metropolitan Council of Environmental Services | Solids Alternatives
Evaluation, MN
Technical Specialist. Participated in solids program visioning and
alternatives screening sessions with MCES staff to develop system alternatives
for biosolids from seven plants including energy recovery from incineration,
digestion/biogas, and processing of high strength wastes.
Loudoun Water | Biosolids and Grease Alternatives Evaluation, Ashburn,
VA
Technical Advisor. Investigated long-term biosolids end use and processing
options, and the viability of receiving and treating fats, oils, and grease (FOG)
at the Broad Run Wastewater Reclamation Facility. Conceptual design
information and preliminary costs for five biosolids alternatives were
presented and discussed during a series of workshops. A Triple Bottom Line
(TBL) evaluation was used to identify the options most economically, socially
and environmentally viable biosolids management options for further
consideration.
Metropolitan St. Louis Sewer District | Comprehensive Biosolids Master
Plan, MO
Technical Advisor. Participated in Solids Alternatives Advisory Group, with
biosolids program managers from NEORSD, Denver, and land application
contractors to provide experience, input and feedback during the alternatives
screening process considering biosolids from a multi-plant system. Performed
TBL analysis, with category and criteria weightings developed by the MSD
project team.
Anne Arundel County | Dewatering Schematic Design, Anne Arundel, MD
Technical Manager. For the schematic design of dewatering facilities at four
of the County’s Wastewater Reclamation Facilities including a useful life
analysis of existing equipment, thickening and dewatering alternatives
evaluation to ensure cost-effective biosolids management operations, and
workshops with County staff and other stakeholders.
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Northeast Ohio Regional Sewer District | Southerly Renewable Energy
Project, OH
Evaluation and design of renewable energy facilities at the Southerly WWTC
comprised of fluidized bed incineration with steam production using three
waste heat boilers and a turbine generator to produce electricity. Facilitated a
group of experts to review and make recommendations for the integration of
the control system for the project.
Northeast Ohio Regional Sewer District | Validation Workgroup, OH
Led a “Blue Ribbon Panel” evaluation of the long-term residuals management
plan for the District, investigated newer biosolids technologies and the carbon
footprint of various options to help the District move forward with their longterm program. Over 20 technologies were reviewed, including the need for
new facilities in light of aging equipment. The panel provided a map forward
to fast-track the incineration project, including the addition of a green power
option for energy recovery.
Loudoun County Water | Broad Run Water Reclamation Facility Study and
Preliminary Design, VA
Senior Residuals Technical Advisor. Provided technical assistance and
review of solids handling and management practices for a new wastewater
treatment plant in Loudoun County.
Environmental Management System (EMS) Demonstration Program,
National Biosolids Partnership (NBP)
Project Manager. Directed a team to help utility members of the NBP prepare
procedures to demonstrate to communities that they were committed to going
beyond regulatory requirements, enhancing biosolids quality, and improving
environmental performance. The EMS concept was new to many involved, so
education was a key component. Provided on-call assistance to numerous
utility managers and clients, organized workshops, and prepared summary
reports to aid in the development of the final EMS “blueprint.”
Multiple Utilities Clients | Biosolids EMS Technical Consultation Services,
CA, DC, KY, MD, VA
Project Manager. Provided technical assistance to DC Water and Sewer
Authority’s (DC WASA’s) Blue Plains Advanced Wastewater Treatment Plant,
the Washington Suburban Sanitary Commission (WSSC), the Louisville and
Jefferson County Metropolitan Sewer District, the Alexandria Sanitation
Authority (ASA), the Hampton Roads Sanitation District (HRSD), and the City
of Los Angeles, among others to develop their own biosolids EMS in
accordance with the NBP’s blueprint. Led teams of consultants and
collaborated with a diverse swath of utility personnel who have varying
degrees of EMS knowledge.
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Northeast Ohio Regional Sewer District | Residuals Management Study,
OH
Project Manager. Evaluated over 20 technologies and prepared detailed
economic analysis of numerous short-listed options. Assisted in the
development an implementable, long range plan to ensure viable residuals
management options in a climate of NIMBYism (not-in-my-back-yard).
District of Columbia Water and Sewer Authority | Biosolids Master Plan
(BMP)
Project Manager. Helped direct a structured decision process to analyze
information and address multiple stakeholder issues. The Decision Science
Approach is a six-step, iterative process; key steps are revisited at successive
workshops to build to a consensus recommendation for a long-term
management plan. Worked with representatives from the public,
environmental groups, DCWASA staff, regional committees, and state and
federal regulators who came together to forge this critically needed plan for
DCWASA.
Loudoun County Technical Committee on the Land Application of Sludge,
VA
Participated in a task force committee to evaluate the impacts and issues
surrounding the land application of sludge (biosolids) as a fertilizer in
Loudoun County, VA. The task force included local county extension agents,
state and county health department representatives, public works
professionals, and county supervisors to develop new local regulations.
Washington Suburban Sanitary Commission | Potomac WTP Solids
Handling Project, MD
Lead Process Mechanical Engineer. Prepared preliminary process
mechanical design for the addition of solids handling treatment at the
Potomac Water Treatment Plant, including mass balance, hydraulic profile,
flow splitter, clarifiers, and belt filter press building with truck outloading
facilities.
Town of Leesburg | Biosolids Management Upgrade Study, Leesburg, VA
Project Manager. Reviewed existing solids handling processes and current
end-use program. Using a workshop approach, evaluated biosolids
management alternatives with respect to screening and evaluation criteria
developed during the workshops. Recommended a long-term program to
include thermal drying and the distribution and marketing of pellets for the
management of both wastewater and water treatment plant residuals.
Washington Suburban Sanitary Commission | Rock Creek Facility Plan,
MD
Senior Project Engineer. Evaluated alternatives to the capacity problems in
the Rock Creek basin to develop the Rock Creek Facility Plan. Existing and
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future conditions were determined including equipment and storage
capacities, projected flows, and costs for each alternative.
Town of Purcellville | Wastewater Treatment Plant Evaluation and
Preliminary Engineering, Purcellville, VA
Senior Project Engineer. Evaluated treatment alternatives for the Town’s
new wastewater treatment plant. Alternatives included extended aeration,
SBRs, and biological nutrient removal treatment processes. Sequencing of the
construction at the constrained site was detailed to ensure permit compliance
during construction activities, as well as biosolids use opportunities for
increased program reliability.
Optimization Study, Howard County, MD
Project Manager. The project included an evaluation of existing operations
and maintenance practices; benchmarking analysis; and review of contract or
privatization options for the Little Patuxent Water Reclamation Plant.
Washington Suburban Sanitary Commission | Utility Evaluation, MD
Project Manager. Evaluation of a privately-owned water and wastewater
system with respect to operations, facility condition, rates, and customer
service for WSSC. Key issues included system acquisition by WSSC or
Maryland Environmental Services (MES); contract operations; financial and
rate impacts; and facility evaluation and comparison to WSSC standards. The
project involved communication with many stakeholders including
community association officers, Public Service Commission, County Council
members, and operations staff from WSSC, MES, and the privately-owned
system.
Piney Run Water Treatment Plant, Carroll County, MD
Developed a residuals management plan for the handling and disposal/use of
water treatment plant solids. Evaluated alternatives of land application, cocomposting, discharge to the wastewater treatment plant, and landfilling.
Prepared design criteria for the mechanical dewatering system.
Hampton Roads Sanitation District | Preliminary Engineering Report, VA
Prepared a Preliminary Engineering Report for a new 21-dtpd, enclosed,
aerated, static-pile -composting facility. Developed process design and
capacity criteria. Evaluated stationary and mechanical mixing and screening
systems, materials handling, aeration requirements, site layout, and odor
control.
Charlotte-Mecklenburg Utilities, Charlotte, NC
Project Manager. Managed project to evaluate biosolids management
alternatives, develop alkaline stabilization demonstration program, and
oversee university cooperative research for Charlotte-Mecklenburg Utility
Department, North Carolina. The project was valued at approximately one
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million dollars. Project included facility construction and start-up operations;
laboratory and field monitoring of the soil product; evaluation of soil product’s
effects when used as landfill cover material; and development of other product
markets.
City of Winston-Salem | Biosolids Management Study, Winston-Salem,
NC
Evaluated current and long-term biosolids management alternatives including
anaerobic digestion for stabilization; land application; composting; alkaline
stabilization; and enhanced dewatering.
New York City Department of Environmental Protection | Agricultural
Land Application and Reclamation Implementation Plans for New York
City Biosolids, New York City, NY
Used GIS mapping to show beneficial use opportunities within NYS.
Responsible for university research program management and oversight.
Provided technical information to support DEP in NYS Round Table
discussions. Assisted in the planning and review of requests for proposals and
proposals for major biosolids contracts.
Metropolitan Water Reclamation District of Greater Chicago | Solids
Evaluation, Chicago, IL
Assisted in the evaluation of solids material handling and processing for the
MWRDGC, which owns and operates the largest wastewater treatment facility
in the U. S. This evaluation included the review of thickening, digestion, and
dewatering processes at the Stickney and Calumet plants as well as the
lagooning processes at the solids management areas.
Sacramento Regional County Sanitation District | Biosolids Heat
Drying/Chemical Treatment Project, Sacramento, CA
Technical Specialist. Evaluated chemical treatment alternatives for the
Proprietary and generic system alternatives and configurations were
investigated with respect to product characteristics, operations and
maintenance considerations, storage, and cost effectiveness.
Augusta County Service Authority | Biosolids Program, Augusta, VA
Developed innovative and cost-effective biosolids program for Authority with
over ten wastewater treatment plants. Recommended conversion from liquid
land application to mobile dewatering and subsequent beneficial use at local
landfill. Much coordination was required between the Authority and state and
regional Department of Environmental Quality representatives to implement
this successful program.
DCWASA | Blue Plains Wastewater Treatment Plant, DC
Evaluated residuals management alternatives, taking into account the
regulatory impacts on each option. Various combinations of alternatives were
developed and cost estimates prepared for each scenario. A Supplemental
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Environmental Impact Statement (SEIS) was prepared for the proposed
incineration with energy recovery system. Managed the evaluation of state-ofthe-art composting technologies to recommend a viable system for 60-dtpd
facility at Blue Plains. Assessment included an evaluation of eight composting
systems with respect to procurement aspects, process and operational issues,
odor control, product quality, and usage.
U. S. Environmental Protection Agency (EPA) | Technology Evaluation of
Alkaline Stabilization Processes
Project Manager. Information was reported in an EPA document intended to
serve as a guideline for municipalities that are considering these processes.
The document will help them in their own site-specific assessments.
Joint Meeting of Essex and Union Counties | Landfill Disposal
Specifications, Essex and Union, NJ
Prepared specifications for the landfill disposal of lime-stabilized dewatered
biosolids. Evaluated State Revolving Fund requirements for the construction
of a biosolids receiving and incineration facility. Designed and developed
contract plans and specifications for chlorine disinfection facility
improvements.
Metropolitan Washington Council of Governments | Regulatory Impact
Evaluation, DC
Examined the impacts of proposed federal and state regulations on seven
Washington area wastewater treatment plants with respect to actual and
planned treatment methods at each plant. Evaluation was used to assist the
region in developing formal comments on the proposed regulations.
Conference Coordination
Arranged numerous conferences and seminars. Served as Technical Program Chair
for the 17th Annual Residuals and Biosolids Conference in Baltimore, MD,
collaborating with three other professional associations. Engaged over 150
speakers and presenters, reviewed and ranked abstracts, and presided over the
Opening General Session. Organized and chaired several successful workshops,
including Reality or “All Gas?” Renewable Energy, Energy Efficiency and
Sustainable Solutions for Biosolids Facilities at the 2009 Residuals and Biosolids
Conference, and Boosting Biogas-to-Energy: Jumping the Hurdles to Biogas
Utilization at WEFTEC 2012.
SELECTED PUBLICATIONS
“TCLP versus EP for the Analysis of Wastewater Sludges.” Presented at the
Triangle Conference, Clemson University. Clemson, South Carolina.
February 1989.
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Evaluation and Comparison of the Extraction Procedure (EP) Toxicity Test and
the Toxicity Characteristic Leaching Procedure (TCLP) for the Analysis of
Pesticides in Wastewater Sludges. Presented at the National Pesticide
Conference: Pesticides in Terrestrial and Aquatic Environments.
Richmond, Virginia. May 1989.
With A. M. Dietrich and S. A. Chestnutt. "Comparison of Two Tests for Trace
Organic Compounds in Land-Applied Sewage Sludge." Virginia Water
Resources Research Center Bulletin, No. 166, July 1989.
With C. S. Coker and T. G. Shea. "Regulatory Impact Assessment of the
Proposed 40 CFR Part 503 Technical Standards for the Disposal of
Municipal Sewage Sludge from Washington, DC Area POTWs." Presented at
the American Chemical Society National Meeting, Washington, DC. August
30, 1990.
With C. S. Coker, D. W. Oerke, and S. M. Rogowski. "Evaluation of Alkaline
Stabilization Processes." Presented at the 45th Annual Virginia Water
Pollution Control Association Conference. Williamsburg, Virginia. April 29,
1991. Also presented at the 1991 EPA Technology Transfer Forum.
Portland, Oregon. June 6, 1991.
"Blue Plains Enclosed Composting System Evaluation and Development of
Concept Design." 64th Annual National Water Pollution Control
Federation. Toronto, Canada. October 8, 1991.
With D. W. Oerke, C. S. Coker, and S. M. Rogowski. "Detailed Case Study
Evaluation of Alkaline Stabilization Processes." AWWA/WPCF Joint
Residuals Management Conference. August 12, 1991.
"Federal Sewage Sludge Regulations—How Will They Impact Virginia's Sludge
Management Practices?" Virginia Water Resources Conference. April 14,
1992.
With T. C. Mendenhall, D. H. Moreau, and N. V. Colston. "Artificial Soil—Its Use
as Landfill Cover Material." National Lime Association Seminar and WEF
Residuals Specialty Conference. Portland, Oregon. July 1992.
With J. F. Dausman and R. S. Reimers. "Historical Development of Alkaline
Stabilization." WEF Residuals Specialty Conference. Portland, Oregon. July
1992.
"Determination of Organic Pollutants in Land Applied Municipal Wastewater
Sludges by Toxicity Characteristic Leaching Procedure (TCLP) and
Extraction Procedure Toxicity Test (EP)." Water Environment Research,
Volume 65, Number 5. August 1993.
With T. C. Mendenhall. "Distribution and Marketing—Elements of Success."
1994 International Water and Wastewater Solids Conference. Washington,
D.C. June 1994.
Lori A. Stone, P.E.
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With J. Thompson and S. Gerwin. "High-solids Dewatering and Composting—
the Next Generation." 1995 WEF/AWWA Joint Biosolids and Residuals
Management Conference. Kansas City, Missouri. July 1995.
With P. Mascaro, T. Shea, and M. Ramirez. “Changing Horizons for Land
Application of Biosolids in the Chesapeake Bay Watershed: One Agency’s
Response.” 4th European Biosolids and Organic Residuals Conference,
November 1999.
“Biosolids Products: Trends in Alkaline Stabilization.” Biosolids Technology
Seminar, Virginia Water Environment Association, November 2000.
With C. Peot. “Biosolids Environmental Management Systems – WASA’s
Experience.” Virginia Water Environment Association Annual Conference,
May 2001.
With R. Dominak. “Long-term Residuals Management Planning for Optimum
Results.” WEFTEC Annual Conference, October 2002.
“National Research Council Report Finds No Health Risk From Biosolids.”
National Biosolids Partnership, December 2002.
With P. Machno and J. Horne. “A Solid Framework – Environmental
Management Systems Help Build Lasting Success.” Water Environment
and Technology, May 2002.
With R. Dominak. “Residuals Disposal Costs – A Detailed Analysis.” WEFTEC
Annual Conference, October 2003.
With M. Chandler and J. Pringle. “Unique Solutions for Unique Challenges –
Developing a Biosolids EMS for a Multi-Faceted Program.”
CSAWWA/CWEA/WWOA Tri-Association Conference, July 2003.
With P. Machno and E. Demichele. “Improving Biosolids Management through
and Environmental Management System – Educating and Training for NBP
EMS Certification.” WEFTEC, October 2006.
“Effective Biosolids Management Using an EMS Framework.” Wisconsin
Biosolids Symposium, March 2007.
With C. Lue-Hing, T. Logan, S. Harder, P. Schafer, T. Shea, J. Welp, R. Dominak.
“Residuals Management Validation Workgroup Summary of Findings and
Recommendations.” Cleveland, OH, August 2008.
With G. Daigger, and editors W. Eckenfelder, J. Malina, and J. Patterson,
Upgrading Wastewater Plants, Volume 2, Third Edition. Revised Chapter
6, “Plant Upgrading Through New Solids Processing Technologies.” To be
published.
With NBP, numerous workshops and presentations to help utilities establish
environmental management systems (2005-2007).
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With P. Scanlan, T. Yong, H. Santha, and T. Johnson. “Biosolids Master
Planning: A Roadmap to Success.” 2009 IWA Sludge Conference.
With G. Binder, R. Dominak, K. Rotunno. “Validation of a Long-Term Biosolids
Management Plan.” WEFTEC Annual Conference, October 2009.
With C. Hemenway, J. Horne. “The Bridge to Somewhere: Seven Easy Paths to
Utility Sustainability.” WEFTEC Annual Conference, October 2009.
With L. Fillmore, P. Scanlan. “Energy Efficiency for Biosolids Treatment:
Update of Best Practices and Case Studies.” WEF Residuals and Biosolids
Conference, May 2010.
“Renewable Energy Resources: Banking on Biosolids.” National Association of
Clean Water Agencies. March 2010.
With P. Scanlan, T. Koodie. “Class A Digestion. What is the Future in the United
States? A State-by-State Look at Beneficial Use.” Biosolids Technical
Bulletin, May/June 2011.
With L. Fillmore, A. Shaw, S. Tarallo. “Energy Management – Towards Energy
Neutral Wastewater Treatment.” WEFTEC Annual Conference, October
2011.
With L. Fillmore, J. Willis, K. Durden, C. Hemenway, N. Beecher. “Barriers to
Biogas Utilization for WWTPs – A Summary of WERF’s Project into Biogas
Use Barriers.” WEFTEC Annual Conference, October 2011.
With M. Elenbaas, J. Bernas, C. Bott, R. Bowen, J. Layne. “The Challenge of
Regulatory Compliance and Multiple Facility Upgrades - A Progressive
System Approach.” WEFTEC Annual Conference, October 2012.
With N. Beecher, “New Data on Biogas Production at US WWTPs.” Water
Online and other publications, October 2012.
With J. Rowan, J. Welp, G. Querioz. “Transforming Wastewater Solids into Gold
Through Incineration.” WE&T, December 2012.
With L. Fillmore, “New Paradigms for Energy.” The Plant Operator, January
2013.
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