Wet-weather events impact Water Resource Recovery Facilities and their ability to comply with regulations. Modelling plays an important role in understanding wet-weather phenomena and ensuring facilities are designed to handle these kinds of events.

CH2M HILL’s Julian Sandino will join other industry representatives to present on wet-weather modelling during the IWA/WEF Wastewater Treatment Modelling Seminar in Spa, Belgium on Sunday, March 30 at 9:55 a.m.

For a complete schedule of CH2M HILL’s participation in the modelling seminar, click here.

By: Julian Sandino, Ph.D., CH2M HILL Vice President and Technology Senior Fellow

Severe weather events, like Hurricane Sandy along the East Coast of the U.S. and the recent flooding events in the UK, demonstrate the power of water and remind us how important it is to manage wet-weather phenomena. By studying wet-weather event and patterns, we can plan ahead to make sure that our infrastructure is adequately prepared to handle the excess water and loads on our systems.

For several years, municipal utilities have recognized the need to significantly improve how they manage wet-weather related flows in their Water Resource Recovery Facilities (WWRF). Driven mostly by stricter effluent regulations and public pressures, utilities realize the behavior of the facility in wet-weather is very different from dry weather, especially with regard to influent flows and loads. These flows and loads, which result from combined sewer systems or even separate systems that have significant amounts of infiltration and inflow, can in many cases exceed the treatment capacity of existing facilities.

Determining the best wet-weather flow management scenario for a particular WRRF is where dynamic wet-weather modelling comes into play. In their presentation, experts will address the importance of wet-weather modelling; modelling behavior of a WRRF during wet-weather; and how to utilize models to mitigate the effects of wet-weather.

I hope to see many of you at the workshop. I think this will be a good opportunity to stimulate ideas on how to improve the performance of utilities’ systems, and it’s a great way for consultants to learn innovative solutions to better serve and solve their clients’ wet-weather challenges. For those of you not able to attend the seminar, contact us for more information on using wet-weather models to improve operations at WWRFs.

Dr. Julian Sandino is an expert in the evaluation and process design of wastewater treatment facilities including both liquid and solids treatment trains, as well as in the definition of biosolids management reuse/disposal solutions. He is also an expert in the area of management of wet-weather flows in treatment facilities. He has led and assisted in several applied research projects related to optimizing wastewater treatment in terms of performance and energy requirements. His projects have included the definition of appropriate wastewater management solutions in locations with a wide range of different technical, economic, environmental and social requirements such as New York, Rio de Janeiro, Cairo, Los Angeles, Sao Paolo, Boston, Bogota, San Diego, Mexico City, Miami, Santiago, Chicago, and Buenos Aires. He also serves as an advisor and special consultant to the World Bank in the areas of Water and Sanitation.