DOI: 10.1016/j.watres.2018.05.022
Scopus记录号: 2-s2.0-85047253018
论文题名: Reducing phosphorus (P) losses from drained agricultural fields with iron coated sand (- glauconite) filters
作者: Vandermoere S. ; Ralaizafisoloarivony N.A. ; Van Ranst E. ; De Neve S.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 141 起始页码: 329
结束页码: 339
语种: 英语
英文关键词: Eutrophication
; Phosphorus
; Phosphorus sorbing materials
; Tile drainage
; Water framework directive
; Water quality
Scopus关键词: Bandpass filters
; Coated materials
; Cultivation
; Efficiency
; Environmental regulations
; Eutrophication
; Intelligent control
; Iron
; Metal coatings
; Mica
; Mixtures
; Olivine
; Particle size
; Particle size analysis
; Phosphorus
; River pollution
; Scales (weighing instruments)
; Silicate minerals
; Surface waters
; Water conservation
; Water quality
; Flow-through systems
; Mitigation measures
; Mixture compositions
; Sorbing materials
; Sorption experiments
; Tile drainage
; Water Framework Directives
; Water quality improvements
; Filtration
; bauxite
; biotite
; glauconite
; iron
; lead
; mineral
; nickel
; olivine
; phosphorus
; surface water
; unclassified drug
; aluminum silicate
; ferrous ion
; glauconite
; iron derivative
; magnesium derivative
; mineral
; phosphorus
; silicate
; silicon dioxide
; agricultural emission
; agricultural land
; eutrophication
; filter
; iron
; phosphorus
; pollutant removal
; reduction
; sorption
; surface water
; water quality
; adsorption
; agricultural land
; Article
; bulk density
; eutrophication
; hydraulic conductivity
; isotherm
; kinetics
; particle size
; priority journal
; sand
; water quality
; agriculture
; chemistry
; prevention and control
; procedures
; water pollutant
; water pollution
; Europe
; Agriculture
; Aluminum Silicates
; Eutrophication
; Ferrous Compounds
; Iron
; Iron Compounds
; Magnesium Compounds
; Minerals
; Phosphorus
; Silicates
; Silicon Dioxide
; Water Pollutants, Chemical
; Water Pollution
英文摘要: In north-west Europe, agricultural diffuse P losses are a major cause of eutrophication problems in surface waters. Given that the Water Framework Directive (WFD) demands fast water quality improvements and most of the actual P mitigation strategies tend to work on the long run, new short-term mitigation measures are urgently needed. We here report on the entire process of developing small scale field filters to remove P at the end of tile drains, starting from the screening of potential P sorbing materials (PSM): iron coated sand (ICS), acid pre-treated natural minerals (biotite, glauconite and olivine) and bauxite. Initial batch (ad)sorption experiments revealed following order in both, P sorption capacity and speed: ICS > bauxite > glauconite > olivine = biotite. Because of the presence of significant amounts of lead and/or nickel, we excluded bauxite and olivine from further experiments. Subsequent lab scale flow through systems were conducted with P filters containing mixtures of ICS and glauconite (100/0, 90/10, 80/20, 70/30 and 60/40%, respectively, on weight basis). We found a significant relationship between Ksat and the filter mixtures particle size distribution and bulk density, and a significant effect of the filter mixture composition on P removal efficiency and stability of Ksat. During the 10 week field trials, the pure ICS filters were capable of processing all drainage discharge rates (up to 6 m3 day−1) with a P removal efficiency of ≥74%. The 90/10 ICS/glauconite filters could process up to 4 m3 water day−1 with a P removal efficiency of 57%. As saturated ICS filters can easily be replaced and recycled for other applications, this is a promising sustainable technique to drastically cut back diffuse P losses and to tremendously improve surface water quality in the short term. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112689
Appears in Collections: 气候减缓与适应
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作者单位: Department of Soil Management, Faculty of Bio-Science Engineering, Ghent University, Coupure Links 653, Ghent, 9000, Belgium; Department of Geology, Faculty of Sciences, Ghent University, Krijgslaan 281 (S8), Ghent, 9000, Belgium
Recommended Citation:
Vandermoere S.,Ralaizafisoloarivony N.A.,Van Ranst E.,et al. Reducing phosphorus (P) losses from drained agricultural fields with iron coated sand (- glauconite) filters[J]. Water Research,2018-01-01,141