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- aggregation classification "A1".
- aggregation creator B952963.
- aggregation creator B952964.
- aggregation creator person.
- aggregation creator person.
- aggregation creator person.
- aggregation creator person.
- aggregation date "2015".
- aggregation format "application/pdf".
- aggregation hasFormat 5877121.bibtex.
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- aggregation isPartOf urn:issn:0013-936X.
- aggregation language "eng".
- aggregation rights "I have transferred the copyright for this publication to the publisher".
- aggregation subject "Earth and Environmental Sciences".
- aggregation title "Electrochemical nutrient recovery enables ammonia toxicity control and biogas desulfurization in anaerobic digestion".
- aggregation abstract "Organic waste streams can be valorized and reduced in volume with anaerobic digestion (AD). An often-encountered key issue however is the high ammonium (NH4+) content of certain waste streams. Ammonia (NH3), in equilibrium with NH4+, is a toxic compound to the methanogenic community, which limits the organic loading rate and endangers process stability. An electrochemical system (ES) linked to a digester could, besides recovering this nutrient, decrease NH3 toxicity through electrochemical extraction. Therefore, two digesters with and without ES attached in the recirculation loop were operated to test whether the ES could control NH3 toxicity. During periods of high ammonium loading rates, the methane (CH4) production of the ES-coupled reactor was up to 4.5 times higher compared to the control, which could be explained through simultaneous NH4+ extraction and electrochemical pH control. A nitrogen flux of 47 g N m(-2) membrane d1 could be obtained in the ES-coupled reactor, resulting in a current and removal efficiency of 38 +/- 5% and 28 +/- 2%, respectively, at an electrochemical power input of 17 +/- 2 kWh kg(-1) N. The anode also oxidized sulfide, resulting in a significantly lower H2S emission via the biogas. Lastly, limited methanogenic community dynamics pointed to a nonselective influence of the different operational conditions.".
- aggregation authorList BK1344790.
- aggregation endPage "955".
- aggregation issue "2".
- aggregation startPage "948".
- aggregation volume "49".
- aggregation aggregates 5877146.
- aggregation isDescribedBy 5877121.
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