Carbon, nitrogen and phosphorus recovery from liquid swine wastes: a review

Due to the pollution characteristics of the wastewater generated in piggeries, these waste streams have to be treated before discharging into the environment. These wastes have a high content of organic matter, nitrogen and phosphorus that can be converted or recovered into valuable products. The va...

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Published inJournal of chemical technology and biotechnology (1986) Vol. 95; no. 9; pp. 2335 - 2347
Main Authors Montalvo, Silvio, Huiliñir, César, Castillo, Alejandra, Pagés‐Díaz, Jhosané, Guerrero, Lorna
Format Journal Article
LanguageEnglish
Published Chichester, UK John Wiley & Sons, Ltd 01.09.2020
Wiley Subscription Services, Inc
Subjects
air
Air stripping
algae biomass
Anaerobic digestion
Anaerobic treatment
Carbon
effluents
Emissions control
environment
liquid swine waste
liquids
literature
magnesium ammonium phosphate
Nitrogen
nutrient recovery
Nutrients
Organic matter
Organic phosphorus
Phosphorus
Phosphorus removal
pollution
Process parameters
Recovery
striate formation
Struvite
Swine
systematic review
Waste management
Waste streams
Wastes
Wastewater
Wastewater treatment
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Summary:Due to the pollution characteristics of the wastewater generated in piggeries, these waste streams have to be treated before discharging into the environment. These wastes have a high content of organic matter, nitrogen and phosphorus that can be converted or recovered into valuable products. The valuation of swine waste by anaerobic digestion has already been assessed, but no systematic review on the technologies used for recovering nutrients from this waste has been reported to date. Therefore, the present work has the goal of presenting the most studied technologies to different scales of recovery of carbon (i.e. organic matter), nitrogen and phosphorus from swine waste. The main characteristics and parameters of the processes involved in these technologies (mainly air stripping, membrane, enhance biological phosphorus removal and struvite formation) are also highlighted, pointing out its advantages and disadvantages and posing some final feasibility considerations on the subject addressed. Experiments reported in the literature proved that technologies used for nutrient recovery from swine waste are mostly applied to the effluents previously treated by anaerobic digestion as a primary treatment, and greater effort is required for the future implementation of these technologies in large scale. © 2020 Society of Chemical Industry
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ISSN:0268-2575
1097-4660
DOI:10.1002/jctb.6336