[PDF] Top 20 Lead removal from aqueous solutions by Bacillus subtilis

... for lead is 10 µg L -1 ...the removal of heavy metals from industrial wastewater because all these processes have the limitations of technical and/or economical ... See full document

... for lead is 10 µg L -1 ...the removal of heavy metals from industrial wastewater because all these processes have the limitations of technical and/or economical ... See full document

... The present research was designed to investigate the efficiency of a dry fungal adsorbent for the removal of lead ions from their aqueous solutions. The effect of parameters such as ... See full document

... ranging from 10 to 200 mg/L on the adsorption of Cd(II) and Pb(II) on ...increase from 0.984 – 5.29, and 1 – 11.84 mg/g for the removal of Cd(II) and Pb(II), ... See full document

... The source of the adsorbents, Manihot esculenta cranz and manihot walkarae cassava were collected from a cassava experimental site at National Root Crops Research Institute, Umudike Abia State, Nigeria. Their ... See full document

... effective desorbent, resulted in 90% recovery of this metal ion for Fagus Orientalis Lipsky tree leaves. In order to show the reusability of the sorbents, adsorption–desorption cycle of lead was repeated three ... See full document

... include lead,zinc, cadmium, chromium, mercury, uranium, selenium, arsenic ...resulting from mining operations, refining ores, sludge disposal, fly ash from incinerators, the processing of radioactive ... See full document

... of lead ions on G-EWC adsorbent by pseudo-first order and pseudo-second order model is presented in figure 8 and figure 9 ...the lead ions. From these results, it is clear that in case of ... See full document

... (Cu), lead (Pb), mercury (Hg), manganese (Mn), cadmium (Cd), nickel (Ni), zinc (Zn) and iron (Fe),Vanadium(V) ...Wastewater from many industries such as metallurgical, tannery, chemical manufacturing, ... See full document

... Cr(VI) removal percentage in ...best removal rate compared to other bacteria, but initially in the lag phase growth removal was less in ...maximal removal percentage noted in 25 mg/l was ... See full document

... The negative value of enthalpy change, ΔH, shows that the biosorption of lead is exothermic process. The value of ΔG for these processes becomes less negative with increasing temperature which shows that sorption ... See full document

... are lead and zinc that are among the toxic metals affecting the ...them from wastewater to reach acceptable limits set by governmental ...of lead is ...molecules from a gas, liquid, or ... See full document

... (II) from aqueous solutions on powdered chalk was studied as a function of different parameters : contact time (t), mass of the adsorbent (w) and initial concentration (C i ) of the ... See full document

... strains from the pure culture slants the bacterial strains were transferred to the liquid broth which was also the production media and as well as the starter culture for the growth of ...inoculums from ... See full document

... Furthermore, Bacillus subtilis strain GM2 promoted growth of wheat but only GM5 strain was able to protect wheat seedlings from Fusarium oxysporum infection... Keywords Bacillus subtilis[r] ... See full document

... 19.85g of NB powder was mixed with 2.4 litres of distilled water in a sizeable container to produce NB medium. 100ml of this was dispensed into 250ml conical flasks. The conical flasks with content were sterilized using ... See full document

... Maximum removal efficiency of ...phenol removal efficiency of ...isolated from penta- chlorophenol-tolerant crop species for biodegradation of ... See full document

... Lysine defiency in man has been linked to the development of various diseases and physiological conditions including anemia, nausea, dizziness, blood shot eyes, hypersensitivity to sound, impaired growth, hair loss, ... See full document

... wool and is identified for their stability (Bradbury, 1973). Keratin contains several cross linking disulfide bonds, responsible for the stability of keratin and its resistance to enzymatic degradation. Feather is the ... See full document

... of lead from a contaminated aqueous matrix by chlorides, car- bonates, and sulfates of sodium and calcium was compared to lead removal by molecular sieves and biomaterials (fish- bone, ... See full document