Proceedings

Advancing Extractive Nutrient Recovery from Wastewater

Williams, T. – CH2M HILL

(free)

Wastewater is a renewable resource whereby products such as nutrients can be recovered and reused. This paradigm shift has the potential to reduce energy consumption, improve treatment efficiency, and provide utilities with alternative revenue streams. Technical, social and economic challenges remain for an industry-wide adoption of nutrient recovery. In this paper, we present information generated as part of a Water Environment Research Foundation (WERF) study that strives to enable the wider adoption of extractive nutrient recovery by bridging the knowledge gap. Extractive nutrient recovery, defined as the production of chemical nutrient products devoid of significant organic matter, represents a disruptive technology. It often entails a three step framework to include accumulation, release, and extraction of a chemical nutrient product that is marketable and could potentially off-set operating costs and synthetic fertilizer use. This paper reviews drivers and barriers for and against extractive nutrient recovery; embryonic, innovative, and established technologies; and case study of a full scale nutrient recovery facility.

The Biosolids conference attracts the most authoritative global experts in the area of biosolids and organic resource handling, treatment and recycling. The programme covers both the latest innovations and updates of existing technologies. Presentations from respected industry experts and newcomers follow the development of technologies and legislation from inception to full-scale installations.

The conference regularly gathers over 200 delegates from all over Europe, many of them return every year both for the technical presentations and fantastic networking opportunities.

Regular conference themes include:

• Thickening and Dewatering
• Modelling Sludge Handling and Utilisation
• Commissioning and Operating Experiences with Thermal Hydrolysis
• Tackling Potential Odour Problems
• Operating Experiences and Potential Problems in Digester Operation
• Ensuring Optimum Energy Recovery from Biogas
• Liquor Treatment and P Removal
• Alternative Products from Sludge
• Enhancing the Value of Biosolids and Digestate
• Pathogens and Pollutants In Digestate
• Sharing Experiences

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