An enhanced electrokinetic process for removal of metals (Cr, Cu, Fe, Ni, Pb, Zn) from an industrial wastewater sludge was performed. The electrokinetic experiments were conducted under a constant potential gradient (1.25 V cm(-1)) with processing fluids of tap water (TW), sodium dodecylsulfate (SDS) and citric acid (CA) for 5 days. Results showed that metal removal efficiency of heavy metals f...

The aim of this study was to investigate the removal of Escherichia coli and heavy metals (Pb, Cd 2+ and Zn ) from wastewater using silver-modified clinoptilolite under different experimental conditions through the combined disinfection of pathogenic microorganisms by the silver ions and sorption of heavy metals on clinoptilolite. Batch experiments were conducted to look at the effects of initi...

Ginkgo trees are common street trees in Korea, and the large amounts of leaves that fall onto the streets annually need to be cleaned and treated. Therefore, fallen gingko leaves have been used as a raw material to produce biochar for the removal of heavy metals from solutions. Gingko-leaf-derived biochar was produced under various carbonization temperatures and times. This study evaluated the ...

The thermal behavior of heavy metals in the co-incineration of municipal solid waste-sludge incinerator fly ash (MSS fly ash) was studied using a laboratory-scale tube furnace. The results indicate that without the addition of chlorinating agents, temperature was an important parameter and had significantly influenced on heavy metal removal, whereas the residence time had a weak effect. Between...

Abstract: Heavy metal contamination of drinking water poses serious threat to public health and ecosystems. Chronic exposure to such metal contamination can lead to various health problems including nerve and organ damages. Thus, removal of heavy toxic metals from the contaminated water supply is a critical issue of water quality management. Naturally-occurring resources have been attractive ca...

the biosorption of heavy metals can be an effective process for the removal of such metal ions from aqueous solutions. in this study, the adsorption properties of nonliving biomass of phanerochaete chrysosporium for pb (ii) and zn (ii) were investigated by the use of batch adsorption techniques. the effects of initial metal ion concentration, initial ph, biosorbent concentration, stirring speed...

An anaerobic biofilm reactor was used to pretreat a typical municipal solid waste landfill leachate. It challenging remove Fe, Pb, and Ni meet the discharge-to-sewer standards at hydraulic retention time (HRT) typically in previous studies. This work further systematically studied factors that limited metal removal. The HRT removal because required sulfides precipitation more than 3.5 times of ...

The main objective of this study was to achieve the continuous biorecovery and bioreduction Pb(II) using an industrially obtained consortia as a biocatalyst. An upflow anaerobic sludge blanket reactor used in treatment process. bioremediation technique that applied made use yeast extract microbial substrate Pb(NO3)2 source Pb(II). UASB exhibited removal efficiencies between 90 100% for inlet Pb...

one of the major environmental problems in the world, especially in iran is deficiency of water resources. this with respect to the entrance of wastewater (especially industrial wastewaters due to their toxic effects) into the water bodies emphasizes the importance of wastewater treatment. heavy metals such as cadmium, lead and vanadium are part of oil and hence are of the major pollutants prod...