Porous solid carbon source-supported denitrification in simulated mariculture wastewater

A porous solid carbon source was prepared by semen litchi (SL), poly(vinyl alcohol) (PVA) and sodium alginate (SA) in aqueous. The effect of SL content on the structures and denitrification performance of the porous solid carbon source in simulated mariculture wastewater was investigated. The SL/PVA...

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Veröffentlicht in:Environmental technology. - 1993. - 42(2021), 8 vom: 28. März, Seite 1196-1203
1. Verfasser: Li, Hua (VerfasserIn)
Weitere Verfasser: Liu, Qingsong, Dong, Hongbiao, Duan, Yafei, Zhou, Ziming, Zhang, Jiasong
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2021
Zugriff auf das übergeordnete Werk:Environmental technology
Schlagworte:Journal Article Solid carbon source denitrification mariculture wastewater porous beads semen litchi Nitrates Waste Water Carbon 7440-44-0
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520 |a A porous solid carbon source was prepared by semen litchi (SL), poly(vinyl alcohol) (PVA) and sodium alginate (SA) in aqueous. The effect of SL content on the structures and denitrification performance of the porous solid carbon source in simulated mariculture wastewater was investigated. The SL/PVA/SA beads showed a network structure with a wide range of macropores. Compared with blank beads, the SL/PVA/SA beads showed an increased rough surface and whole distribution on the surface with the increase of SL. In addition, SL/PVA/SA beads have more uniform pore size, but the porosity of SL/PVA/SA beads was decreased with the increase of SL. The porosity of the beads was 83.24%, 74.24%, 71.48% and 71.29% for blank beads and SL/PVA/SA beads contained 30%, 40% and 50% SL, when it was used as a solid carbon source for denitrification. Owing to their good porosity and biocompatibility, SL/PVA/SA beads had shorter acclimation time. Nitrate removal rate could reach up to 100% after two days of adaptation. After the exhaustion of carbon sources, nitrate removal rate less than 50% occurred at the 9th, 10th and 11th day for SL/PVA/SA beads that contained 30%, 40% and 50% SL, respectively. The beads that contained 50% SL exhibited longer lifetime during the denitrification reaction and denitrification rate could reach 243.5 ± 7.08 mg N (L d)-1. It could be used as an economical and effective carbon source for denitrification in mariculture wastewater 
650 4 |a Journal Article 
650 4 |a Solid carbon source 
650 4 |a denitrification 
650 4 |a mariculture wastewater 
650 4 |a porous beads 
650 4 |a semen litchi 
650 7 |a Nitrates  |2 NLM 
650 7 |a Waste Water  |2 NLM 
650 7 |a Carbon  |2 NLM 
650 7 |a 7440-44-0  |2 NLM 
700 1 |a Liu, Qingsong  |e verfasserin  |4 aut 
700 1 |a Dong, Hongbiao  |e verfasserin  |4 aut 
700 1 |a Duan, Yafei  |e verfasserin  |4 aut 
700 1 |a Zhou, Ziming  |e verfasserin  |4 aut 
700 1 |a Zhang, Jiasong  |e verfasserin  |4 aut 
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773 1 8 |g volume:42  |g year:2021  |g number:8  |g day:28  |g month:03  |g pages:1196-1203 
856 4 0 |u http://dx.doi.org/10.1080/09593330.2019.1660415  |3 Volltext 
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