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After manpower, energy is the highest operating cost item for most the wastewater utilities. Over the last decade, the implementation of new technologies to meet new effluent limits and water quality standards has considerably increased energy consumption by the sector. The price of energy has also substantially increased in the same period. In North America and Europe, some utilities have reported significant increases in energy costs in recent years, and with oil prices continuing to fluctuate, further substantial increases in operating costs could be expected. Those increases will be compounded by the need to meet additional new regulations that will require energy-intensive treatment processes to achieve tight standards. High energy consumption will affect the wastewater industry worldwide and is inextricably linked to the issue of Climate Change.
Through its Optimization Challenge program, the Water Environment Research Foundation (WERF) is currently participating in the Global Water Research Coalition’s (GWRC) project titled Energy Efficiency in the Water Industry: A Compendium of Best Practices and Case Studies. The objective of the GWRC project is to develop a Compendium of best practice (worldwide) in the energy-efficient design and operation of water industry assets. For this project, WERF is serving the role of North America wastewater practice coordinator. Through this assignment, WERF intends to define specific recommendations regarding:
As part of the GWRC project, WERF has developed this report summarizing existing information on well-established energy optimization/energy recovery best practices, as well as documenting a series of case studies of novel (yet full-scale proven) technologies/practices in wastewater treatment in primarily North America.
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Technology Roadmap for Sustainable Wastewater Treatment Plants in a Carbon-Constrained World
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Determine the Effect of Individual Wastewater Characteristics and Variances on Primary Clarifier Performance
The Water Environment Research Foundation sponsored a one-year study quantifying the effect of certain wastewater characteristics and their variability on the performance of primary clarifiers. ...
Evaluation of QSPR Techniques for Wastewater Treatment Processes
Most households regularly use products containing trace organic compounds (TOrC), including endocrine disrupting compounds (EDCs) pharmaceutically active compounds (PhACs), personal care products...
Demonstrating Advanced Oxidation Coupled with Biodegradation for Removal of Carbamazepine
Carbamazepine is hydrophilic anthropogenic pharmaceutical found in wastewater effluents that is quite resistant to removal by conventional wastewater treatment processes....
Evaluating Waterbody Assessment and Listing Processes: Integration of Monitoring and Evaluative Techniques
In order to facilitate more effective integration of monitoring data and technically sound assessment methodologies into the waterbody assessment and listing process, a critical evaluation of the...
Leak Detection
Ageing infrastructure and declining water resources are major concerns with a growing global population. Controlling water loss has therefore become a priority for water utilities around the...
Management Practice for Wastewater Pipelines: Synthesis Report
This report presents state-of-the-art literature and current practice review of management practices for wastewater pipelines. These practices focus on the pipe condition evaluation and prediction...
Identifying and Controlling Odor in the Municipal Wastewater Environment, Health Effects of Biosolids Odors
This report deals with whether the experience of odors, i.e., odors as sensations, from biosolids at wastewater treatment plants (WWTPs) causes illness. There exists no repository of information...
Disinfectant Decay and Corrosion: Laboratory and Field Studies
The primary objective of this research was to develop and test a pipe-section reactor to measure the decay rate of disinfectant at the pipe wall. The pipe-section reactor is more convenient than...