Does the combination of biochar and clinoptilolite enhance nutrient recovery from the liquid fraction of biogas digestate?

Concentrating nutrients on biochar and clinoptilolite and subsequently using the nutrient-enriched sorbents as a fertiliser could be an alternative way to manage nutrients in digestate. In this study, we investigated the use of biochar and clinoptilolite columns in removing ammonium, potassium, orth...

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Veröffentlicht in:Environmental technology. - 1993. - 38(2017), 10 vom: 01. Mai, Seite 1313-1323
1. Verfasser: Kocatürk-Schumacher, Nazlı Pelin (VerfasserIn)
Weitere Verfasser: Zwart, Kor, Bruun, Sander, Brussaard, Lijbert, Jensen, Lars Stoumann
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2017
Zugriff auf das übergeordnete Werk:Environmental technology
Schlagworte:Journal Article Biochar clinoptilolite liquid fraction of digestate nutrient recovery sorption Ammonium Compounds Biofuels Phosphates Waste Products mehr... Water Pollutants, Chemical biochar 12173-10-3 Zeolites 1318-02-1 Charcoal 16291-96-6 Carbon 7440-44-0 Potassium RWP5GA015D
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520 |a Concentrating nutrients on biochar and clinoptilolite and subsequently using the nutrient-enriched sorbents as a fertiliser could be an alternative way to manage nutrients in digestate. In this study, we investigated the use of biochar and clinoptilolite columns in removing ammonium, potassium, orthophosphate and dissolved organic carbon (DOC) from the liquid fraction of digestate. Our objectives were to investigate the effect of the initial loading ratio between liquid and biochar on nutrient removal, and to investigate the effect of combining biochar with clinoptilolite on nutrient and DOC removal efficiency. Increasing the initial loading ratios increased nutrient concentrations on biochar to 8.61 mg NH4-N g-1, 1.95 mg PO4-P g-1 and 13.01 mg DOC g-1, but resulted in decreasing removal efficiencies. The combination of biochar and clinoptilolite resulted in improved ammonium, potassium and DOC removal efficiencies compared to biochar alone, but did not significantly change PO4-P removal efficiencies. Removal efficiencies with combined sorbents were up to 67% for ammonium, 58% for DOC and 58% for potassium. Clinoptilolite showed higher removal efficiencies compared to biochar alone, and combining clinoptilolite with biochar improved only total P removal efficiency. Concentrating nutrients with clinoptilolite and biochar may be an option when both sorbents are available at low cost 
650 4 |a Journal Article 
650 4 |a Biochar 
650 4 |a clinoptilolite 
650 4 |a liquid fraction of digestate 
650 4 |a nutrient recovery 
650 4 |a sorption 
650 7 |a Ammonium Compounds  |2 NLM 
650 7 |a Biofuels  |2 NLM 
650 7 |a Phosphates  |2 NLM 
650 7 |a Waste Products  |2 NLM 
650 7 |a Water Pollutants, Chemical  |2 NLM 
650 7 |a biochar  |2 NLM 
650 7 |a clinoptilolite  |2 NLM 
650 7 |a 12173-10-3  |2 NLM 
650 7 |a Zeolites  |2 NLM 
650 7 |a 1318-02-1  |2 NLM 
650 7 |a Charcoal  |2 NLM 
650 7 |a 16291-96-6  |2 NLM 
650 7 |a Carbon  |2 NLM 
650 7 |a 7440-44-0  |2 NLM 
650 7 |a Potassium  |2 NLM 
650 7 |a RWP5GA015D  |2 NLM 
700 1 |a Zwart, Kor  |e verfasserin  |4 aut 
700 1 |a Bruun, Sander  |e verfasserin  |4 aut 
700 1 |a Brussaard, Lijbert  |e verfasserin  |4 aut 
700 1 |a Jensen, Lars Stoumann  |e verfasserin  |4 aut 
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773 1 8 |g volume:38  |g year:2017  |g number:10  |g day:01  |g month:05  |g pages:1313-1323 
856 4 0 |u http://dx.doi.org/10.1080/09593330.2016.1226959  |3 Volltext 
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