DOI: 10.1016/j.watres.2018.03.018
Scopus记录号: 2-s2.0-85046016177
论文题名: Lanthanum-modified drinking water treatment residue for initial rapid and long-term equilibrium phosphorus immobilization to control eutrophication
作者: Wang C. ; Wu Y. ; Wang Y. ; Bai L. ; Jiang H. ; Yu J.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 137 起始页码: 173
结束页码: 183
语种: 英语
英文关键词: Adsorption
; Drinking water treatment residue
; Eutrophication
; Phosphorus
Scopus关键词: Adsorption
; Bentonite
; Eutrophication
; Lanthanum
; Molluscs
; Phosphorus
; Solutions
; Toxic materials
; Water treatment
; Aeruginosa
; LA Chemicals
; Lake restoration
; Ligand exchanges
; Modified bentonites
; Specific materials
; Toxic effect
; Water production
; Potable water
; bentonite
; drinking water
; lanthanum
; ligand
; phosphorus
; bentonite
; drinking water
; lanthanum
; phosphorus
; adsorption
; aqueous solution
; bentonite
; byproduct
; drinking water
; eutrophication
; immobilization
; ligand
; performance assessment
; phosphorus
; rare earth element
; snail
; toxicity
; water treatment
; adsorption
; aqueous solution
; Article
; Bellamya aeruginosa
; chemical modification
; ecosystem restoration
; eutrophication
; lake sediment
; nonhuman
; pH
; porosity
; priority journal
; recycling
; scanning electron microscopy
; snail
; water treatment
; X ray photoelectron spectroscopy
; animal
; chemistry
; drug effect
; female
; lake
; male
; water management
; water pollutant
; Bellamya aeruginosa
; Gastropoda
; Adsorption
; Animals
; Bentonite
; Drinking Water
; Eutrophication
; Female
; Lakes
; Lanthanum
; Male
; Phosphorus
; Recycling
; Snails
; Water Pollutants, Chemical
; Water Purification
英文摘要: This study presents an approach for developing inactivating materials to achieve an initial rapid and a long-term equilibrium P immobilization to control eutrophication based on drinking water treatment residue (DWTR), which is a byproduct of potable water production. By taking advantage of the long-term equilibrium P adsorption by DWTR, the La chemical properties, and the previous success of using La-modified bentonite clay (Phoslock®), we used DWTR as a La carrier with different ratios to develop the specific materials. The La loading mechanisms, the potentially toxic effect of La-modified DWTR on snail Bellamya aeruginosa (within 120 d), and the short- and long-term (within 80 d) P immobilization characteristics of the modified DWTR were investigated to understand the performance of the developed materials. The results showed that La loading into DWTR was based on ligand exchanges and the formation of new particles; DWTR loaded with <5% La had no toxicity against the snail. Most importantly, the loading of 5% La to DWTR substantially enhanced the rapid immobilization capacity of DWTR, achieving an initial rapid and a long-term equilibrium P adsorption in aqueous solutions. This study promotes the beneficial recycling of DWTR and results in a win-win situation for lake restoration. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112830
Appears in Collections: 气候减缓与适应
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作者单位: State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, 210008, China; College of Biology and Environment, Nanjing Forestry University, Nanjing, 210037, China; Graduate University of Chinese Academy of Sciences, China; CEER, State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing, 210029, China
Recommended Citation:
Wang C.,Wu Y.,Wang Y.,et al. Lanthanum-modified drinking water treatment residue for initial rapid and long-term equilibrium phosphorus immobilization to control eutrophication[J]. Water Research,2018-01-01,137