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Systems Based on Physical-Chemical Processes: Nutrient Recovery for Cycle Closure
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Author(s): August Bonmatí-Blasi (IRTA, GIRO Joint Research Unit IRTA-UPC, Spain), Míriam Cerrillo-Moreno (IRTA, GIRO Joint Research Unit IRTA-UPC, Spain)and Victor Riau-Arenas (IRTA, GIRO Joint Research Unit IRTA-UPC, Spain)
Copyright: 2017
Pages: 33
Source title:
Technologies for the Treatment and Recovery of Nutrients from Industrial Wastewater
Source Author(s)/Editor(s): Ángeles Val del Río (University of Santiago de Compostela, Spain), José Luis Campos Gómez (University Adolfo Ibáñez, Chile)and Anuska Mosquera Corral (University of Santiago de Compostela, Spain)
DOI: 10.4018/978-1-5225-1037-6.ch003
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Abstract
High strength waste streams, namely rejected water from a wastewater treatment plant, livestock slurry, and agro-food wastewater, are characterized by its high organic matter and nutrient content which favours processes aiming to recover energy and nutrients, instead of removing them. In this regard physical-chemical processes are suitable technologies to attain these objectives. Among others, stripping coupled with absorption, struvite precipitation, membrane separation, and vacuum evaporation, are all physical-chemical processes aiming to concentrate nutrients in a stream that can later be reused as fertilizer. In this chapter the main physical-chemical processes will be defined and described in terms of the objective of each process technique, their theoretical fundamentals, environmental effects (air, water and soil emissions, resource depletion), technical indicators (efficiencies, energy consumption, etc.), and by-product characteristics.
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