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- aggregation classification "A1".
- aggregation creator person.
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- aggregation date "2012".
- aggregation format "application/pdf".
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- aggregation isPartOf urn:issn:1520-5851.
- aggregation language "eng".
- aggregation rights "I have transferred the copyright for this publication to the publisher".
- aggregation subject "Technology and Engineering".
- aggregation title "Electrochemical resource recovery from digestate to prevent ammonia toxicity during anaerobic digestion".
- aggregation abstract "Ammonia inhibition during anaerobic digestion limits the substrate loading rate and endangers process stability. Furthermore, digestates are interesting feedstocks for nutrient recovery. In this lab-scale study, an electrochemical cell was used to investigate the NH4+ flux from anode to cathode. Under optimal conditions with synthetic wastewater, an NH4+ charge transfer efficiency of 96% and NH4+ flux of 120 g N m(-2) d(-1) could be obtained at a concomitant electricity input of 5 kWh kg(-1) N removed. A more selective NH4+ transfer could be established by maintaining a high concentration of other cations in the cathode compartment. Comparable NH4+ fluxes could be obtained with digestate at an electrical power input of 13 kWh kg(-1) N removed and 41% current efficiency. The ammonium level in the digestate could be lowered from 2.1 to 0.8 - 1.2 g N L-1. Interestingly, also potassium fluxes of up to 241 g K+ m(-2) d(-1) could be obtained at 23% current efficiency. As the cathode can be operated at high pH without the need for chemical addition, stripping and absorption of dissolved ammonia could reach 100% efficiency. By valorization of the generated side products, this technology shows economic potential for practical application.".
- aggregation authorList BK768847.
- aggregation endPage "12216".
- aggregation issue "21".
- aggregation startPage "12209".
- aggregation volume "46".
- aggregation aggregates 4398900.
- aggregation isDescribedBy 3069027.
- aggregation similarTo es3028154.
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