Soil burial biodegradation studies of starch grafted polyethylene and identification of Rhizobium meliloti therefrom
Present study report on biodegradation of starch grafted polyethylene (PE), successfully synthesized by graft copolymerization method using benzoyl peroxide as the radical initiator. Biodegradable behavior of the grafted PE was ascertained by soil burial test. Percent weight loss was measured as a function of number of days and observed that it increased with increasing number of days. Microanalysis of the...
Removal of lead from aqueous solution by walnut shell
The paper deals with the study of nuts of European walnut (Juglans regia) arising as waste from the agricultural production for the removal of heavy metals from aqueous solutions. The suitability of the given biosorbent was verified through the determination of its adsorption capacity (equilibrium) and rate (kinetics) of adsorption of the studied metal (lead). The shells of the European walnut were first...
Adsorption of iron and zinc on commercial activated carbon
Comparison of jar tests and microscope slide experiments for flocculation of paint wastewater
In jar tests, synthetic wastewater was dosed with FeCl3, Fe2(SO4)3, AlCl3 or Al2(SO4)3 and flocculated. In each case the concentration of the metal ions in the flocculant was 0.043 M. Samples of the mixture were placed under a light microscope that had been fitted with a camera, so that the flocs could be examined. A further experiment was conducted using the same ratio (1:10) of sample to coagulant...