Abstract: Twenty‐three different sewage sludges were studied to adapt indigenous sulfur‐oxidizing microflora to solubilize a substantial part of trace metals from the sludges. The results showed that the oxidation of elemental sulfur ...

Abstract: An investigation on the effect of sludge solids concentration on bioleaching of Cr(III) and other metals from tannery sludge by indigenous sulphur-oxidizing bacteria was carried out. The sludge solids concentrations ranged ...

Abstract: The agricultural use of sewage sludge is limited by the presence of toxic metals and pathogens. The simultaneous sludge digestion and metal leaching (SSDML) process has been developed to resolve this problem. In the present ...

Abstract: High concentrations of Al, Fe, Ca, Mg, and Zn in the tanning agent are detrimental to the properties of tanned leather. To recycle the Cr(III) from the tannery sludge to the tanning agent, these five metals must be removed ...

Abstract: Wastewater biofiltration is a distinct process as compared to other biological treatments as the microorganisms are fixed to a support and wastewater flows through it to be treated. The biofiltration process technologies ...

Abstract: This research aimed at evaluating the adsorption of trivalent chromium present in high concentrations [about

Abstract: High concentrations of Al, Fe, Ca, Mg, and Zn in the tanning agent are detrimental to the properties of tanned leather. To facilitate removal of chromium from the tannery sludge and recycle to the tanning agent, these five ...

Abstract: An investigation on the effect of elemental sulphur concentration on bioleaching of Cr(III) and other metals from tannery sludge by sludge indigenous sulphur-oxidizing bacteria was performed. Elemental sulphur concentrations ...

Abstract: At the onset of 21st century, the pollution of surface and groundwater by toxic metals continues to represent a challenge for the authorities responsible for environmental protection. The uncontrolled rejection of metals ...