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Recovery of nutrients (N-P-K) from potassium-rich sludge anaerobic digestion side-streams by integration of a hybrid sorption-membrane ultrafiltration process: Use of powder reactive sorbents as nutrient carriers

Author
Hermassi, M.; Valderrama, C.; Gibert, O.; Moreno Palmerola, Natàlia; Querol , X.; Harrouch, N.; Cortina, J.
Type of activity
Journal article
Journal
Science of the total environment
Date of publication
2017-05-05
Volume
599-600
First page
422
Last page
430
DOI
https://doi.org/10.1016/j.scitotenv.2017.04.140 Open in new window
Repository
http://hdl.handle.net/2117/105553 Open in new window
URL
http://www.sciencedirect.com/science/article/pii/S0048969717309841 Open in new window
Abstract
Here, an alternative nutrient (N-P-K) recovery route from potassium-rich sludge anaerobic digestion side-streams using powder reactive sorbents (PRSs) is presented. In the first step, the optimum PRS system was determined in batch experiments with mixtures of: a) a sodium zeolite (NaP1) to facilitate the NH4+ and K+ sorption; b) a Ca-zeolite (CaP1) to facilitate the removal of P by formation of Ca-phosphates (e.g., CaHPO4(s)), and c) caustic magnesia containing mixtures of MgO to facilitate the ...
Citation
Hermassi, M., Valderrama, C., Gibert, O., Moreno Palmerola, Natàlia, Querol , X., Harrouch, N., Cortina, J. Recovery of nutrients (N-P-K) from potassium-rich sludge anaerobic digestion side-streams by integration of a hybrid sorption-membrane ultrafiltration process: Use of powder reactive sorbents as nutrient carriers. "Science of the total environment", 5 Maig 2017, vol. 599-600, p. 422-430.
Keywords
Anaerobic side-stream, Caustic magnesia, Hybrid sorption-membrane ultrafiltration, Na/Ca-zeolite, Nutrient recovery, Powder reactive sorbents
Group of research
CRnE - Barcelona Research Center in Multiscale Science and Engineering
R2EM - Resource Recovery and Environmental Management

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