HEAVY METALS REMOVAL FROM SURFACE WATER WITH Moringa oleifera SEED EXTRACT AS FLOCCULANT AGENT

被引：0

作者：

Beltran-Heredia, J. ^{[1
]}

Sanchez-Martin, J. ^{[1
]}

机构：

[1] Univ Extremadura, Dept Chem Engn & Phys Chem, E-06071 Badajoz, Spain

来源：

FRESENIUS ENVIRONMENTAL BULLETIN | 2008年 / 17卷 / 12A期

关键词：

Heavy metals; drinking water; metal removal; coagulation-flocculation; natural flocculation agents; Moringa oleifera;

D O I：

暂无

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Moringa oleifera seeds extract has been tested for heavy metals removal from surface water. pH value has been revealed to be very significant as basic pH leads to hydroxide precipitation. Moringa oleifera capability for removing Cu2+, Zn2+ and Ni2+ has been explored through two proceedings: Jar-test assays and a pilot plant composed by a coagulation/flocculation tank, a sedimentator and a slow sand filter. Effectiveness of coagulation/flocculation process for removing these metals is around 10% in batch assays, and it is linked to turbidity removal. In order to improve this process, pilot plant with a recycle and filtration was implemented, so effectiveness raised up to 20%. Another property of Moringa oleifera can be considered in order to characterize its potential use in water treatment.

引用

页码：2134 / 2140

页数：7

共 29 条

[1] Intake and digestibility of Moringa oleifera-batiki grass mixtures by growing goats
Aregheore, EM
[J]. SMALL RUMINANT RESEARCH, 2002, 46 (01) : 23 - 28
[2] Armand-Stussi I., 2003, SOFW-J, V129, P45
[3] Azo dye removal by Moringa oleifera seed extract coagulation
Beltran-Heredia, Jesus
Martin, Jesus Sanchez
[J]. COLORATION TECHNOLOGY, 2008, 124 (05) : 310 - 317
[4] Reverse osmosis applied to metal finishing wastewater
Benito, Y
Ruíz, ML
[J]. DESALINATION, 2002, 142 (03) : 229 - 234
[5] PHARMACOLOGICAL PROPERTIES OF MORINGA-OLEIFERA .2. SCREENING FOR ANTISPASMODIC, ANTIINFLAMMATORY AND DIURETIC ACTIVITY
CACERES, A
SARAVIA, A
RIZZO, S
ZABALA, L
DELEON, E
NAVE, F
[J]. JOURNAL OF ETHNOPHARMACOLOGY, 1992, 36 (03) : 233 - 237
[6] PHARMACOLOGICAL PROPERTIES OF MORINGA-OLEIFERA .1. PRELIMINARY SCREENING FOR ANTIMICROBIAL ACTIVITY
CACERES, A
CABRERA, O
MORALES, O
MOLLINEDO, P
MENDIA, P
[J]. JOURNAL OF ETHNOPHARMACOLOGY, 1991, 33 (03) : 213 - 216
[7] Charerntanyarak L, 1999, WATER SCI TECHNOL, V39, P135, DOI 10.2166/wst.1999.0642
[8] DOIG LE, 2007, ECOTOXICOLOGY ENV SA, V66, P167
[9] Fuglie LJ., 2001, The Miracle Tree. The Multiple Attributes of Moringa
[10] A simple purification and activity assay of the coagulant protein from Moringa oleifera seed
Ghebremichael, KA
Gunaratna, KR
Henriksson, H
Brumer, H
Dalhammar, G
[J]. WATER RESEARCH, 2005, 39 (11) : 2338 - 2344

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