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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2008, Vol. 9 Issue (3): 366-372    DOI: 10.1631/jzus.A072210
Environmental & Energy Engineering     
Physico-chemical characterization of a farmland affected by wastewater in relation to heavy metals
Emmanuel U. ONWEREMADU
Department of Soil Science and Technology, Federal University of Technology, PMB 1526 Owerri, Nigeria
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Abstract  This study investigated selected properties of soils affected by wastewater and its relationship with some heavy metals. A free survey technique involving target sampling was used in siting soil profile pits. Soil samples were collected based on horizon differentiation and analyzed using routine and special analytical techniques. Soil data were subjected to correlation analysis using SAS program. Results show that all heavy metals studied had values above critical limits in the polluted soils using known standards and that these biotoxic metals decreased with soil depths. Highly significant (P=0.01 and 0.05) relationships were established between investigated heavy metals and some soil properties, especially soil pH and organic matter. Further studies involving more edaphic properties, biotoxic metals and their bioaccessibility in crops growing on wastewater soils will surely enhance knowledge and management of these highly anthropogenically influenced soils of the study site.

Key words： Bioavailability      Characterization      Heavy metals      Soil pollution      Wastewater     
Received: 23 September 2007      Published: 06 January 2008
CLC:  S19  
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Emmanuel U. ONWEREMADU. Physico-chemical characterization of a farmland affected by wastewater in relation to heavy metals. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2008, 9(3): 366-372.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.A072210     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2008/V9/I3/366

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