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Brown and Caldwell engineers and scientists are technical and thought leaders in the environmental sector. Meet the people who have been advancing innovation for more than 60 years.
"Taking Your Digester Gas on the Road: The Case to Upgrade Digester Gas for Vehicle Fuel"
Sustainability Comparison of Class A and Class B Biosolids Technologies
WEF/WERF Study of BNR Plants Achieving Very Low N and P Limits: Evaluation of Technology Performance and Process Reliability
Air Dispersion Modeling at Wastewater Plants: A Significant Shift in Odor Objectives
Optimization of Air Flow in a Deep Tunnel System for the City of Los Angeles
Improving Energy and Operational Efficiency in Odor Control Systems
The Do It Yourself (DIY) Approach to Treating Extreme H2S Odors in Little River, South Carolina
Biogas Use in Chapel Hill, NC
Considerations in Using Thermal Hydrolysis for Pre-Digestion Processing in North America
Codigestion: How to Make It a Financial “Win-Win” for All Parties
Development of a Land Application Program for Class B Biosolids at the North Davis Sewer District
Focus on Trenchless Technology Results in Successful Interceptor Sewer Replacement
Hydraulic Analysis¸ Inspection¸ and Condition Assessment of the City of San Diego PS65 FM
Rehabilitation of a Hydraulically Limited Sewer 30-Feet Deep Under Interstate-5
Flood Grouting Sanitary Sewers for Infiltration Control
Decision Logic for Selecting Wastewater Force Main Inspection Program Tools
CIPP Rehabilitation of Sewers in the Beaver State – Design, Construction, and Lessons Learned
Institutional Knowledge and Succession Planning in The Cloud: A Low-Cost Way to Capture How Things Really Work
Moving beyond Spreadsheet Spaghetti and Vintage Data - How Cincinnati MSD is Harnessing the Power of Analytics to Improve Business Results
Notes from the War Room Don’t Let Performance Data Kill Your Strategy
"Strategic IT Planning via Enterprise Architecture – A Case Study from Portland Water Bureau – Portland, Oregon"
Petroleum Refinery Stripped Sour Water Treatment Using the Activated Sludge Process
“Discussion of Arnaldos, M., Pagilla, K., 2010. Effluent Dissolved Organic Nitrogen and Dissolved Phosphorus Removal by Enhanced Coagulation and Microfiltration. Water Research 44, 5306-5315.”
Process Design of Wastewater Treatment for the NREL Cellulosic Ethanol Model
Models for nitrification process design: one or two AOB populations?
“You Want It When???” Utilizing 3D Design to Assist with Fast Track Delivery
How a Physical Pump Model Helped Saved Construction Costs and Reduce O&M Headaches
Framework for Integrating Sustainability Into Remediation Projects
Large Scale Ex-Situ Biotreatment of Source Material at a Superfund Site Impacted with Chlorinated and Non-Chlorinated Chemicals
Enhanced Biodegradation of TCE by Groundwater Recirculation in a Shallow Aquifer with Dramatic Seasonal Groundwater Elevation Fluctuations
Treatment of Wastewaters Containing Bisphenol A: State of the Science Review
Demonstration of Copper and Nickel Removal Technologies to Protect San Francisco Bay
Microconstituents: What to Expect in Your Permit
Sewers Hit the Big Screen in West Hollywood: Using New Technology to Inspect Sewer Pipelines
How Much Maintenance is Enough? RCM Delivers the Right Maintenance Strategy for a Critical Lift Station
Unique Challenges Drive Innovative Solution - Buoyant Interceptor Sewer in a Lake
A MOM’s Work Is Never Done. Virginia Beach’s MOM Program Sets a Path for Continuous Improvement
Extending the Boundaries of Wastewater Force Main Inspection Methods
Development of a Defensible Pump Station CIP Based on Sound Asset Management Principles
Evaluation of Biosolids Utilization Options for the Capital Regional District, Victoria, BC
Transition Development for DC Water’s Biosolids Management Program
Rapid Volume Expansion – An Investigation into Digester Overflows and Safety
Anaerobic Digestion at an ENR Plant: Implications for Energy, Carbon and GHG
Fueling Combined Heat and Power: EPA and WERF Initiatives and Case Studies
Gas Turbines: A Good Fit for WWTP Heat and Power Systems?
Implications of the EPA's Endangerment Finding, Reporting Rule, and Tailoring Rule for POTWs
Integrating Anaerobic Digester with Liquid Stream Treatment: Modeling Approach
Integrating Anaerobic Digester with Liquid Stream Treatment: Modeling Approach
Deriving More Information from Volatile Solids Data
Biogas Enhancement Pilot Test at Sacramento Regional Wastewater Treatment Plant Proves Feasibility and Value of Co-digestion Using High Strength Organic Wastes
Evaluating Management Options for Improving Cost-Effectiveness at METROGRO Farm
Performance of a Pilot-scale Continuous Flow Microbial Electrolysis Cell Fed Winery Wastewater
Not Your Daddy’s Wastewater Treatment Plant – The Johns Creek Environmental Campus
WEF/WERF Cooperative Study of Nutrient Removal Plants: Achievable Technology Performance Statistics for Low Effluent Limits
Analysis of Organic Nitrogen Removal in Municipal Wastewater by Reverse Osmosis
Simultaneous Biological Nutrient Removal in a Single-Stage, Low Oxygen Aerobic Reactor
Recycling Nitrates to Headworks for Multiple Benefits in a Fixed Film Plant
Cost Control and Risk Reduction - Precepts for Developing DCWASA’s Biosolids Program in the Age of Sustainability
The Business Case for Optimizing the Operations, Maintenance, and Distribution of Pierce County’s Biosolids Fertilizer Manufacturing Facility
Two for the Price of One: Increasing Digester Capacity while Reducing Filamentous Bulking through Co-thickening at Tacoma’s CTP
Three Procurement Methods and a Major Sole Source Used to Implement DC WASA’s $300+ Million Biosolids Program
Use of Mercury Speciation to Support Alternate Remediation Standards and Cost-Effective Remediation
How “Green” Can We Get with Remediation? A life-cycle comparison between a conventional P&T approach vs. a “green” technology to treat a large PCE plume
How “Green” Can We Get with Remediation? A life-cycle comparison between a conventional P&T approach vs. a “green” technology to treat a large PCE plume
Site-Specific Anthropogenic Background Cleanup Goal for PAHs
Crosstown 2 Rehabilitation Project Balancing Utility Needs with Community Impacts
The City of Columbus¡¦ CMOM Program: A Comprehensive Approach Has Its Rewards
How Virginia Beach Creatively Uses Sewer Modeling to Inform Their Capacity Assurance Program
The Lost Assets: Protecting Sewer Creek Crossings and the Environment The Creek Protection Project, Sacramento Area Sewer District Sacramento, California
Commissioning of 21st Century Trickling Filter Process Design Features in a Trickling Filter / Solids Contact Process
A Consultant’s Perspective on Process Design for Biofilm Based Wastewater Treatment Processes in North America
Ten Years Gone: An Operational Update of Annacis Island, the World’s Largest Trickling Filter Solids Contact Treatment Facility
Optimization of Air Flow in a Deep Tunnel System for the City of Los Angeles
Pressure Reducing Station (PRS) Evaluation Study
21st Century Control System for a 21st Century Plant
Quantifying Methane Evolution from Sewers: Phase 1 Results of the WERF/DeKalb County, Georgia, Case Study
External Carbon Storage and Feed System to Accommodate Alternative Carbon Substrates at the Blue Plains AWTP: Challenges and Remedies to Handle Glycerol
Development Criteria in the Age of Sustainability – DC Water’s New Paradigm for Biosolids and Energy Management
How Much Can My Plant Treat? Using Models and Stress Testing to Determine Plant Capacity
Microconstituents: What to Expect in Your Permit
Introduction of New Process Technology into the Wastewater Treatment Sector
City of San Diego's Recycled Water Study – Demand Management Approach
Co-digestion at Annacis Island WWTP: Metro Vancouver’s Path to Renewable Energy and Greenhouse Gas Emissions Reductions
How Eagle River Water and Wastewater is Training The Next Generation
Biological Treatment of Petroleum Refinery Stripped Sour Water Using the Activated Sludge Process
Bringing CEPT Technology into the 21st Century
Lessons Learned from Trouble-Shooting Anaerobic Selectors during Winter Operating Conditions
Monetizing Triple Bottom Line; Beyond Black Art
Simultaneous Nitrification-Denitrification to Meet Low Effluent Nitrogen Limits: Modeling, Performance and Reliability
Evaluation of GHG Emissions from Biosolids Stabilization and End Utilization Alternatives for the Capital Regional District
Vernonia Natural Wastewater Treatment and Water Reuse
DAFT Optimization: How Much Air Is Enough?
Startup of a State of the Art Nutrient Removal MBR Facility Under Stringent Operating Guarantees
Effective Strategic Planning at Metro Wastewater Reclamation District (MWRD) – It’s All About Alignment and Execution
Louisiana’s Coastal Impact Assistance Program (CIAP)
Creating a Culture for Successful IT Projects
An Odor Study of The Broomfield Wastewater Reclamation Facility
Design Guidelines for Foul Air Ventilation and Collection
Controlling Odors from a Pump Station Surrounded by Upscale Development
Achieving Infrastructure Sustainability by Using Criticality to Guide Condition Assessment of Force Mains in an Enforcement Environment
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