Extending Service Life of Household Water Filters by Mixing Metallic Iron with Sand

被引：50

作者：

Noubactep, Chicgoua ^{[1
,2
]}

Care, Sabine ^{[3
]}

Kamga, Fulbert Togue ^{[4
]}

Schoner, Angelika ^{[5
]}

Woafo, Paul ^{[4
]}

机构：

[1] Univ Gottingen, D-37077 Gottingen, Germany

[2] Kultur & Nachhaltige Entwicklung CDD eV, Gottingen, Germany

[3] Univ Paris Est, Lab Navier, ENCP, LCPC,CNRS, Champs Sur Marne, France

[4] Univ Yaounde I, Lab Modelling & Simulat Engn & Biol Phys, Fac Sci, Yaounde, Cameroon

[5] Univ Jena, Inst Geowissensch, Jena, Germany

来源：

CLEAN-SOIL AIR WATER | 2010年 / 38卷 / 10期

关键词：

Drinking water; Filter clogging; Iron/sand filter; Long term reactivity; Zerovalent iron; PERMEABLE REACTIVE BARRIERS; DRINKING-WATER; ARSENIC REMOVAL; MINERAL PRECIPITATION; GRANULAR IRON; GROUNDWATER; REMEDIATION; TRICHLOROETHYLENE; DISSEMINATION; CONTAMINATION;

D O I：

10.1002/clen.201000177

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The use of metallic iron filters (Fe-0 filters) has been discussed as a promising low-cost option for safe drinking water production at household level Filter clogging due to the volumetric expansive nature of iron corrosion has been identified as the major problem of Fe-0 filters Mixing Fe-0 and sand (yielding Fe-0/sand filters) has been proposed as a tool to extent filter service life However no systematic discussion rationalizing Fe-0/sand mixtures is yet available This communication theoretically discussed suitable Fe-0/sand proportions for efficient filters Results suggested that Fe-0/sand filters should not contain more that 50 vol% Fe-0 (25 wt% when Fe-0 is mixed with quartz) The actual Fe percentage in a filter will depend on its intrinsic reactivity

引用

页码：951 / 959

页数：9

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