The Process and Water Quality Specialists
An issue of growing public and political interest is the presence of constituents of emerging concern (CECs) in nearly all water sources. These compounds are also described using a variety of terms, including trace organic contaminants (TOrCs), pharmaceuticals and personal care products (PPCPs), endocrine disrupting compounds (EDCs), microconstituents, and micropollutants. The list of CECs can be expanded even further to include known disinfection byproducts, including N-nitrosodimethylamine (NDMA), and emerging transformation products from various treatment processes.
Since concern first emerged in the mid-1990s, Trussell Technologies’ core team members have been actively involved in understanding CECs including their formation and mitigation strategies with some of the world’s leading practitioners. In fact, Rhodes Trussell was one of the first engineers to document NDMA formation in the presence of chloramines in water and wastewater (Najm and Trussell, 2001). This knowledge and experience has translated into practical applications involving advanced treatment plants and development of new treatment trains for potable reuse that can properly address concerns with CECs. Trussell Technologies has been directly involved in the development of the revised 2011 California Department of Public Health (CDPH) requirements for groundwater recharge and is well positioned to navigate the regulatory and technological complexity to identify the most appropriate treatment trains for CEC mitigation.