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The goals of environmental sustainability, through minimizing resource use, maximizing energy efficiency, reducing waste emissions, enabling recycling, and increasing resilience are becoming primary in wastewater treatment, along with traditional goals of protecting human health and water quality. Sustainable designs, defined as design of human/industrial systems to ensure that use of natural resources and cycles do not lead to diminished quality of life due to losses in future economic opportunities or to adverse impacts on social conditions, human health, and the environment (Mihelcic et al., 2003) are needed to provide or replace sanitation policy and technology to meet increasing demands. The challenge for wastewater professionals is to design and operate treatment processes which are environmentally sensitive throughout the life-cycle and support human well being. This research focused on one technology for small-scale wastewater treatment: the vertical flow constructed wetland (VFCW), which was investigated for the capacity to remove ammonium and nitrate nitrogen from wastewater.
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Estimation of Mercury Bioaccumulation Potential from Wastewater Treatment Plants in Receiving Waters: Phase 2
This project was initiated in response to the establishment of mercury TMDLs around the country and issues raised by this process, specifically concerning the issue of mercury bioavailability....
Stormwater Non-Potable Beneficial Uses and Effects on Urban Infrastructure
This project shows that lessons learned and successes from a wide variety of international stormwater beneficial use projects cover a range of conditions that may be found in the U.S. Examined are...
A Novel Membrane Process for Autotrophic Denitrification
Biological denitrification by heterotrophic bacteria is common in the wastewater industry in the U.S. and in drinking water processing in Europe. To facilitate heterotrophic...
Treatment Processes for Removal of Emerging Contaminants
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This study was designed to investigate the nature of colloids associated with wastewater effluents and to evaluate the association of emerging...
Develop and Demonstrate Fundamental Basis for Selectors to Improve Activated Sludge Settleability: Phase 2 Lab Investigation
The primary objective of this research was to compare dilute sludge volume index (DSVI) control in equally-sized single- and multi-stage anoxic and anaerobic selectors relative to a control...
Safe Drinking Water
Drinking water provides an efficient source for the spread of gastrointestinal microbial pathogens capable of causing serious human disease.
The massive death toll and burden of disease...
Developing Better Indicators for Pathogen Presence in Sewage Sludge
Today, more than eight million tons of biosolids are generated annually for land application nationwide. These biosolids contain beneficial plant nutrients, soil conditioners, and may contain...
WateriD User Manual
Agencies are investing enormous resources into asset management programs for their water and wastewater piping systems, including comprehensive asset condition assessments and predictive...