当前位置： SCI文献检索 > BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY期刊下所有文献 > Removal of atrazine from water by low cost adsorbents derived from agricultural and industrial wastes.

Removal of atrazine from water by low cost adsorbents derived from agricultural and industrial wastes.

Abstract：

:In the present study six adsorbents viz. wood charcoal, fly ash, coconut charcoal, saw dust, coconut fiber and baggasse charcoal were studied for their capacity to remove atrazine from water. The removal efficiency of different adsorbents varied from 76.5% to 97.7% at 0.05 ppm concentration and 78.5% to 95.5% at 0.1 ppm concentration of atrazine solution, which was less than removal efficiency of activated charcoal reported as 98% for atrazine (Adams and Watson, J Environ Eng ASCE 39:327-330, 1996). Wood charcoal was a cheap (Rs 15 kg(-1)) and easily available material in house holds. Since wood charcoal was granular in nature, it could be used for the removal of atrazine from water to the extent of 95.5%-97.7%. Fly ash is a waste product of thermal plant containing 40%-50% silica, 20%-35% alumina, 12%-30% carbon and unburnt minerals having a high pH of 9-10. It is very cheap and abundant material and has comparatively good adsorption capacity. It was found that fly ash effectively removed about 84.1%-88.5% atrazine from water at 0.05 and 0.1 ppm levels. Coconut shell is also waste product. Therefore, both are inexpensive. The removal efficiency of atrazine from water was 92.4%-95.2% by coconut shell charcoal and 85.9%-86.3% by coconut fiber. Sawdust is generally used as domestic fuel and found everywhere. It is also very cheap (Re. 1 kg(-1)). Baggasse charcoal is a waste product of sugar mill and abundant material. Its cost is due to transport expense, which depends upon distance from the sugar mill. The removal efficiency of sawdust and baggasse charcoal was found 78.5-80.5 and 76.5-84.6, respectively. The efficacy of chemically treated adsorbents for the removal of atrazine from water is in the order: wood charcoal > coconut shell charcoal > fly ash > coconut fiber charcoal > baggasse charcoal > sawdust.

journal_name

Bull Environ Contam Toxicol

journal_title

Bulletin of environmental contamination and toxicology

authors

Sharma RK,Kumar A,Joseph PE

doi

10.1007/s00128-008-9389-6

subject

Has Abstract

pub_date

2008-05-01 00:00:00

pages

461-4

issue

eissn

0007-4861

issn

1432-0800

journal_volume

pub_type

杂志文章

在线工具

Removal of atrazine from water by low cost adsorbents derived from agricultural and industrial wastes.