000			02375cab a2200301Ia 45 0
001			u207522
003			SIRSI
008			100721s2013 ua ss b eng d
040			_aEAL
041			_aeng _bara
090			_aART MUJSSAE V4 No9 11
100	1		_aOmar, T. M. Y.
240	1	0	_aMansoura University Journal of soil sciences and agricultural engineering, 2013 v. 4 (9) _h[electronic resources].
245	1	0	_aAdsorption studies on the removal of hexavalent chromium and lead from contaminated wastewater using leaves of water hyacinth as an adsorbent _h[electronic resources].
246	1	5	_aدراسات أدمصاصية لإزالة الكروم سداسى التكافؤ والرصاص من المياه الصناعيه الملوثة باستخدام أوراق نبات ورد النيل كمادة إدمصاصيه.
300			_ap.975-987.
504			_aIncludes reference.
520			_aPresent of heavy metals in the aquatic system has become a serious problem. As a result, there has a great deal of attention give to new technologies for removal of heavy metal ions from contaminated waters. Biosorption is one such emerging technology which utilized naturally occurring waste materials to sequester heavy metals from industrial wastewater. The wastewater containing hexavalent chromium and lead was treated with biomass prepared from water hyacinth leaves. It was found that a time of 2 hrs was sufficient for sorption to attain equilibrium. The equilibrium sorption capacity after 2 hrs was 18 mg/L and 15 mg/L for lead and chromium, respectively. The optimum pH was 5 for lead and 2 for chromium. Temperature has strong influence on biosorption process. The removal of lead decreased with increase in temperature. On the other hand, chromium removal increased with increasing in temperature up to 40°C and then started decreasing. lon exchange was the major removal mechanism along with physical sorption and precipitation.
546			_aSummary in Arabic.
650		0	_aWater _xPollution.
650		0	_aChromium.
650		0	_aLead abatement.
650		0	_aWater hyacinth _xUtilization.
700	1		_aEl-Shinnawy, A. M.
773	0		_tMansoura University Journal of Soil Sciences and Agricultural Engineering. _g2013.v.4(9) _7nnas _wu183500
856	4	0	_uhttp://nile.enal.sci.eg/EALE/2013/MUJSSAE/413/9/975.pdf _zFull Text Article.
596			_a1
942			_cAR _2lcc
999			_c57520 _d57520