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Uptake of nitrogen forms by diploid and triploid white poplar depends on seasonal carbon use strategy and elevated summer ozone
Wang, Miaomiao; Li, Guolei; Feng, Zhaozhong; Liu, Yong; Xu, Yansen; Uscola, Mercedes
2021-12-26
Source PublicationJOURNAL OF EXPERIMENTAL BOTANY
ISSN0048-9697
Volume801Pages:-
AbstractElectro-dewatering (ED) is an attractive technology for enhancing dewaterability of waste activated sludge (WAS), and the distribution and composition of EPS and secondary structure of extracellular protein in sludge has a great influence on the sludge dewaterability. Therefore, in order to optimize and regulate sludge ED process, it is necessary to study the influence of EPS components and composition on the efficiency of sludge ED. In this study, the effects of distribution and composition of EPS and the structure of extracellular proteins on the ED rates and performance were analyzed using eight sludges from different sewage treatment process. The results showed that ED rates at both electrodes were significantly negatively correlated with the concentration of soluble EPS (S-EPS) and loosely bound EPS (LB-EPS), and this correlation was gradually weakened with the in-depth structure of layered EPS structure. High concentration of S-EPS and LB-EPS decreased the initial current and the pH gradient, deteriorating the anodic oxidation and acidification, which affect the release and degradation of EPS. Additionally, the proteins secondary structure can be destroyed and transformed by anodic oxidation and acidification, which can impact the protein water-holding capacity and ED performance. (c) 2021 Published by Elsevier B.V.
Department城市与区域生态国家重点实验室
KeywordAnaerobically digested sludge Electro-dewatering EPS Pearson correlation Waste activated sludge
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/46773
Collection城市与区域生态国家重点实验室
Affiliation1.Beijing Forestry Univ, Res Ctr Deciduous Oaks, Beijing 100083, Peoples R China
2.Beijing Forestry Univ, Natl Innovat Alliance Valuable Deciduous Tree Ind, Beijing 100083, Peoples R China
3.Beijing Forestry Univ, Key Lab Silviculture & Conservat, Minist Educ, Beijing 100083, Peoples R China
4.Beijing Forestry Univ, Beijing Lab Urban & Rural Ecol Environm, Beijing 100083, Peoples R China
5.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Urban & Reg Ecol, Beijing 100085, Peoples R China
6.[Feng, Zhaozhong
7.Xu, Yansen
8.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China
9.Nanjing Univ Informat Sci & Technol, Sch Appl Meteorol, Inst Ecol, Key Lab Agrometeorol Jiangsu Prov, Nanjing 210044, Peoples R China
10.Univ Alcala De Henares, Dept Ciencias Vida, UD Ecol, Forest Ecol & Restorat Grp, Apdo 20, E-28805 Madrid, Spain
Recommended Citation
GB/T 7714
Wang, Miaomiao,Li, Guolei,Feng, Zhaozhong,et al. Uptake of nitrogen forms by diploid and triploid white poplar depends on seasonal carbon use strategy and elevated summer ozone[J]. JOURNAL OF EXPERIMENTAL BOTANY,2021,801:-.
APA Wang, Miaomiao,Li, Guolei,Feng, Zhaozhong,Liu, Yong,Xu, Yansen,&Uscola, Mercedes.(2021).Uptake of nitrogen forms by diploid and triploid white poplar depends on seasonal carbon use strategy and elevated summer ozone.JOURNAL OF EXPERIMENTAL BOTANY,801,-.
MLA Wang, Miaomiao,et al."Uptake of nitrogen forms by diploid and triploid white poplar depends on seasonal carbon use strategy and elevated summer ozone".JOURNAL OF EXPERIMENTAL BOTANY 801(2021):-.
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