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dc.contributor.author이석헌-
dc.contributor.author배효관-
dc.contributor.author정성필-
dc.contributor.author정다운-
dc.contributor.author조경진-
dc.contributor.authorLat Lat Tun-
dc.date.accessioned2016-05-24T08:25:53Z-
dc.date.available2016-05-24T08:25:53Z-
dc.date.issued2016-08-
dc.identifier.citationVOL 512, 13-20-
dc.identifier.issn03767388-
dc.identifier.other46475-
dc.identifier.urihttp://pubs.kist.re.kr/handle/201004/59212-
dc.description.abstractThe nitrogen content of a synthetic ammonia wastewater was concentrated using direct contact membrane distillation (DCMD). The ratio of transferred ammonia to water (i.e., specific ammonia transfer: SAT) was controlled by operational conditions. With 20 °C on the permeate side, and a high temperature of 70 °C on the feed side, the process exhibited low SAT values for PTFE/PP (PTF045LD0A), PTFE/PP (TF-450), and PVDF (HVHP-14250) membranes. This was because the increase in water flux (>24 L/m2 h) was greater than that of ammonia transfer. A positive relationship between SAT and free ammonia concentration was identified under different total ammoniacal nitrogen concentration and pH. The acidification pretreatment to pH 5 led to further reduction in the SAT value (as low as 6.91×10&#8722-
dc.description.abstract5 g-N/g-H2O). As a practical application, the dewatering process of source-separated human urine by DCMD required an additional filtration step to prevent fouling, but the filtration had an insignificant effect on the SAT. For the acidified and filtered source-separated human urine, total ammoniacal nitrogen was successfully concentrated with a low SAT value (<2.06×10&#8722-
dc.description.abstract3 g-N/g-H2O).-
dc.publisherJournal of membrane science-
dc.subjectHuman urine-
dc.subjectAmmonia enrichment-
dc.subjectMembrane distillation-
dc.titleDewatering of source-separated human urine for nitrogen recovery by membrane distillation-
dc.typeArticle-
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