Use of agricultural waste for the removal of nitrate-nitrogen from aqueous medium

The effectiveness of wheat straw charcoal (WSC) and mustard straw charcoal (MSC) as adsorbents for the removal of nitrate-nitrogen from water has been investigated. Commercial activated carbon (CAC) was used as a standard for comparison. The adsorption effectiveness of MSC was highest followed by CA...

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Veröffentlicht in:	Journal of environmental management 2009, Vol.90 (1), p.519-522
Hauptverfasser:	Mishra, P.C., Patel, R.K.
Format:	Artikel
Sprache:	eng
Schlagworte:	activated carbon Adsorbents Adsorption Adsorption effectiveness Agriculture - methods Animal, plant and microbial ecology Applied ecology aqueous solutions Biological and medical sciences Charcoal Conservation, protection and management of environment and wildlife Effectiveness Fundamental and applied biological sciences. Psychology General aspects Kinetics mustard Mustard straw charcoal Nitrate-nitrogen Nitrates Nitrates - isolation & purification Nitrogen - isolation & purification Temperature Temperature dependency Temperature effects Thermodynamics Triticum aestivum Waste management Waste materials waste treatment Water - analysis water pollution Water Purification - methods Water treatment wheat straw Wheat straw charcoal
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Zusammenfassung:	The effectiveness of wheat straw charcoal (WSC) and mustard straw charcoal (MSC) as adsorbents for the removal of nitrate-nitrogen from water has been investigated. Commercial activated carbon (CAC) was used as a standard for comparison. The adsorption effectiveness of MSC was highest followed by CAC and WSC irrespective of the concentration of nitrate-nitrogen in the range of 0–25 mg/l. The effects of temperature in the range of 15–28 °C on adsorption by WSC and MSC have also been investigated. It was observed that the temperature dependence of the adsorption effectiveness of MSC was higher than that of WSC and CAC. It is concluded that the MSC can be used for the in situ treatment by adsorption of nitrate-nitrogen in underground and surface water.
ISSN:	0301-4797 1095-8630
DOI:	10.1016/j.jenvman.2007.12.003