DOI: 10.1016/j.watres.2018.08.067
Scopus记录号: 2-s2.0-85053002092
论文题名: Removal of phosphonates from synthetic and industrial wastewater with reusable magnetic adsorbent particles
作者: Rott E. ; Nouri M. ; Meyer C. ; Minke R. ; Schneider M. ; Mandel K. ; Drenkova-Tuhtan A.
刊名: Water Research
ISSN: 431354
出版年: 2018
卷: 145 起始页码: 608
结束页码: 617
语种: 英语
英文关键词: Eutrophication
; Industrial wastewater treatment
; Magnetic microparticles
; NTMP
; Phosphonates
; Reversible sorption
Scopus关键词: Adsorption
; Efficiency
; Eutrophication
; Reusability
; Sodium hydroxide
; Wastewater treatment
; Industrial wastewater treatment
; Magnetic microparticles
; NTMP
; Phosphonates
; Reversible sorptions
; Industrial water treatment
; adsorption
; concentration (composition)
; detection method
; efficiency measurement
; eutrophication
; membrane
; nanoparticle
; pH
; phosphate
; phosphorus
; pollutant removal
; reaction kinetics
; sorption
; temperature effect
; wastewater
; wastewater treatment
英文摘要: This work proposes a technology for phosphonate removal from wastewater using magnetically separable microparticles modified with a tailored ZnFeZr-oxyhydroxide adsorbent material which proved to be highly efficient, reaching a maximum loading of ∼20 mg nitrilotrimethylphosphonic acid-P/g (215 μmol NTMP/g) at room temperature, pH 6 and 30 min contact time. The adsorption process at pH < 7 was fast, following the pseudo-second-order kinetics model. Furthermore, NTMP adsorption onto ZnFeZr-oxyhydroxide proved to be endothermic. At pH > pHpzc ≈7 (point of zero charge of the material) a drop in adsorption efficiency was observed for phosphate and for five different investigated phosphonates. Adsorption of NTMP could not be detected at pH > 8, however, the presence of more than 0.5 mM CaII improved significantly the adsorption efficiency. Successful reusability of the engineered particles was demonstrated throughout 30 loading cycles by changing the operational conditions (dose, pH) to optimize the performance. At optimal conditions, complete phosphonate removal was observed even after 30 cycles of particles’ reuse in a synthetic NTMP-solution and DTPMP-rich membrane concentrate. In each cycle, phosphorus was desorbed and concentrated in a 2 M NaOH. Industrial phosphonate-containing wastewaters rich in calcium, e.g. membrane concentrates, proved to be especially suitable for treatment with the particles. © 2018 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112455
Appears in Collections: 气候减缓与适应
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作者单位: University of Stuttgart, Institute for Sanitary Engineering, Water Quality and Solid Waste Management (ISWA), Bandtäle 2, Stuttgart, 70569, Germany; Fraunhofer Project Group Materials Recycling and Resource Strategies (IWKS), Brentanostraße 2a, Alzenau, 63755, Germany; Fraunhofer Institute for Silicate Research (ISC), Neunerplatz 2, Würzburg, 97082, Germany; University of Würzburg, Chair of Chemical Technology of Materials Synthesis, Röntgenring 11, Würzburg, 97070, Germany; Tallinn University of Technology, Centre for Biorobotics, Akadeemia tee 15A-111, Tallinn, 12618, Estonia
Recommended Citation:
Rott E.,Nouri M.,Meyer C.,et al. Removal of phosphonates from synthetic and industrial wastewater with reusable magnetic adsorbent particles[J]. Water Research,2018-01-01,145