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Purification of hydrazine hydrate waste salt using a water washing based integrated process for the production of sodium hydrate via ion-exchange membrane electrolysis
Feng, Ling; Tian, Binghui; Wang, Bo; Yang, Min
2021-12-15
Source PublicationJOURNAL OF CLEANER PRODUCTION
ISSN0944-1344
Pages-
AbstractBaiyangdian Lake (BYD), a large shallow lake in North China, has complex water landscape patterns that are underlies spatial variations in water quality. In this study, we collected 61 water samples from three water landscapes (reed littoral zones, fish ponds, and open water) and analyzed them for water quality parameters, such as dissolved organic carbon (DOC), total nitrogen (TN), and total phosphorus (TP). Water landscape distribution (determined using remote sensing imagery) was then used to assess correlations between water quality parameters and water landscape proportion in differently scaled buffer zones. There was substantial variation across all subareas, with TN and TP concentrations ranging from 0.90 to 4.10 mg/L and 0.06 to 0.18 mg/L, respectively, in class IV of water quality as a whole. Spatial variations in water quality were mainly caused by water landscape distribution and external nutrient inputs. There were negative correlations between DOC, TN, and TP concentrations and the area proportion of reed littoral zones in the 300 and 500 m buffers. In contrast, DOC, TN, and TP concentrations were significantly positively correlated with the area proportion of fish ponds in the 100 m buffer. Furthermore, compared with reed littoral zones, a lower ratio of nitrogen to phosphorus and a higher proportion of dissolved organic nitrogen and tyrosine-like proteins were found in fish ponds. These effects were mainly attributed to the development of internal sediment loadings due to nutrient exchange across the sediment-water interface. Therefore, dredging-based sediment removal from fish ponds should be considered to suppress internal phosphorus loading and accelerate recovery of the BYD ecosystem.
Department环境水质学国家重点实验室
KeywordBaiyangdian Lake Water quality Landscape Variation
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/46860
Collection环境水质学国家重点实验室
Affiliation1.Chinese Acad Sci, Univ Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China
2.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, Natl Engn Lab Ind Wastewater Treatment, Beijing 100085, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Tianjin Chengjian Univ, Sch Environm & Municipal Engn, Tianjin 300384, Peoples R China
Recommended Citation
GB/T 7714
Feng, Ling,Tian, Binghui,Wang, Bo,et al. Purification of hydrazine hydrate waste salt using a water washing based integrated process for the production of sodium hydrate via ion-exchange membrane electrolysis[J]. JOURNAL OF CLEANER PRODUCTION,2021:-.
APA Feng, Ling,Tian, Binghui,Wang, Bo,&Yang, Min.(2021).Purification of hydrazine hydrate waste salt using a water washing based integrated process for the production of sodium hydrate via ion-exchange membrane electrolysis.JOURNAL OF CLEANER PRODUCTION,-.
MLA Feng, Ling,et al."Purification of hydrazine hydrate waste salt using a water washing based integrated process for the production of sodium hydrate via ion-exchange membrane electrolysis".JOURNAL OF CLEANER PRODUCTION (2021):-.
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