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题名: Adsorption of sediment phosphorus by porous ceramic filter media coated with nano-titanium dioxide film
作者: Zhang, Yi1; He, Feng1; Xia, Shibin1, 2; Kong, Lingwei1; Xu, Dong1; Wu, Zhenbin1
通讯作者: He, F (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.
关键词: Adsorption ; Kinetic model ; Nano-TiO2 film ; Phosphorus in sediment ; Porous ceramic filter media (PCFM)
刊名: ECOLOGICAL ENGINEERING
发表日期: 2014-03-01
DOI: 10.1016/j.ecoleng.2013.12.056
卷: 64, 页:186-192
收录类别: SCI
文章类型: Article
部门归属: [Zhang, Yi; He, Feng; Xia, Shibin; Kong, Lingwei; Xu, Dong; Wu, Zhenbin] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China; [Xia, Shibin] Wuhan Univ Technol, Sch Resources & Environm Engn, Wuhan 430070, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine ; Technology
资助者: National Nature Science Foundation of China [51178452, 50808172, 30870221, 50909091, 50878173]; Distinguished Young Scientist Fund of Hubei Province, China [2010 CDA093]; Nature Science Foundation of Hubei Province, China [2010 CDB10202]; Major Science and Technology Program for Water Pollution Control and Treatment of China 12th Five-Year Plan [2012ZX07101007-005]
类目[WOS]: Ecology ; Engineering, Environmental ; Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology ; Engineering
摘要: The porous ceramic filter media (PCFM) was applied to reduce the release of P in lake sediment and we wondered if the nano-TiO2 coating could enhance the P adsorption by PCFM alone in lake sediments. The nano-TiO2 film coated on PCFM in this study was prepared by sol-gel process, and the adsorption properties of sediment Pin all fractions by the nano-TiO2 film coated PCFM were investigated through a series of stirring and static experiments. P release characteristics and various batch sorption conditions, e.g., adsorbent dosage, stirring time, operation temperature and pH were tested, and the kinetics of sediment P adsorption was discussed. The results showed that the sediment released only a small amount of TP within 8 h. The removal efficiency of sediment P in all fractions could reach maximum in 8 h and 22 d under stirring and static experiments, respectively. The residual concentration of Ca-P, Fe/Al-P, IP, OP and TP in the sediment was 85 mg/kg, 255 mg/kg, 310 mg/kg, 95 mg/kg and 431 mg/kg, respectively, and the corresponding removal rate was 19.04%, 44.81%, 43.04%, 45.09% and 44.10%, respectively, under the optimal conditions: adsorbent dosage 4g, operation temperature 30 degrees C and pH 2. The adsorption kinetic models of the sediment P in all fractions could be described well by power function equations (Q(t) = k . t(a), 0
英文摘要: The porous ceramic filter media (PCFM) was applied to reduce the release of P in lake sediment and we wondered if the nano-TiO2 coating could enhance the P adsorption by PCFM alone in lake sediments. The nano-TiO2 film coated on PCFM in this study was prepared by sol-gel process, and the adsorption properties of sediment Pin all fractions by the nano-TiO2 film coated PCFM were investigated through a series of stirring and static experiments. P release characteristics and various batch sorption conditions, e.g., adsorbent dosage, stirring time, operation temperature and pH were tested, and the kinetics of sediment P adsorption was discussed. The results showed that the sediment released only a small amount of TP within 8 h. The removal efficiency of sediment P in all fractions could reach maximum in 8 h and 22 d under stirring and static experiments, respectively. The residual concentration of Ca-P, Fe/Al-P, IP, OP and TP in the sediment was 85 mg/kg, 255 mg/kg, 310 mg/kg, 95 mg/kg and 431 mg/kg, respectively, and the corresponding removal rate was 19.04%, 44.81%, 43.04%, 45.09% and 44.10%, respectively, under the optimal conditions: adsorbent dosage 4g, operation temperature 30 degrees C and pH 2. The adsorption kinetic models of the sediment P in all fractions could be described well by power function equations (Q(t) = k . t(a), 0
关键词[WOS]: PHOTOCATALYTIC DEGRADATION ; PHOSPHATE ADSORPTION ; ACTIVATED CARBON ; WATER INTERFACE ; FRESH-WATER ; HAN RIVER ; LAKE ; TEMPERATURE ; SORPTION ; REMOVAL
语种: 英语
WOS记录号: WOS:000331726100022
ISSN号: 0925-8574
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/20066
Appears in Collections:水环境工程研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Wuhan Univ Technol, Sch Resources & Environm Engn, Wuhan 430070, Peoples R China

Recommended Citation:
Zhang, Yi; He, Feng; Xia, Shibin; Kong, Lingwei; Xu, Dong; Wu, Zhenbin.Adsorption of sediment phosphorus by porous ceramic filter media coated with nano-titanium dioxide film,ECOLOGICAL ENGINEERING,2014,64():186-192
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