Showing papers in "Journal of Hazardous Materials in 2003"

TL;DR: The technical feasibility of various low-cost adsorbents for heavy metal removal from contaminated water has been reviewed and it is evident from the literature survey of about 100 papers that low- cost adsorbent have demonstrated outstanding removal capabilities for certain metal ions as compared to activated carbon.

TL;DR: This paper presents a literature review of the various Fenton reagent reactions which constitute the overall kinetic scheme with all possible side reactions and discusses the possibility of improving sludge dewaterability using Fenton's reagent.

TL;DR: The physical and particle properties of WEEE are presented and it is expected that a mechanical recycling process will be developed for the upgrading of low metal content scraps.

TL;DR: The results show that iron is superior to aluminum as sacrificial electrode material, from COD removal efficiency and energy consumption points.

TL;DR: It can be concluded that the sawdust of P. sylvestris could be a good adsorbent for the metal ions coming from aqueous solutions and could also be used for purification of water before rejection into the natural environment.

TL;DR: The influence of extracellular polymer (ECP) on settling and dewatering characteristics is discussed, together with the importance of cations and ECP-hydrophobicity in the flocculation and de watering process.

TL;DR: The results indicate that inorganic wastes are not suitable for the removal of organic materials, whereas a carbonaceous adsorbent prepared from carbon slurry of fertilizer industry was found to adsorb 198, 211 and 219mg/g of ethyl orange, metanil yellow and acid blue 113 from aqueous solutions.

TL;DR: Ion exchange resins 1200H, 1500H and IRN97H show a remarkable increase in sorption capacity for chromium, compared to other adsorbents and can be used for the efficient removal of chromium from water and wastewater.

TL;DR: New possibilities for this waste reuse in a short-term, in a wide range of fields, resulting in great advantages in waste minimization as well as resources conservation are shown.

TL;DR: This article summarises about 25 quantitative risk measures, mainly on risk measures for loss of life (individual and societal risk) and economic risk, concentrating on risk measurement experiences in The Netherlands.

TL;DR: The experimental result inferred that chelation ion exchange is one of the major adsorption mechanisms for binding metal ions to the maple sawdust.

TL;DR: Alunite was used as a potential adsorbent for a certain type of the supracited pollutants used in cellulose fibers dyeing and was fitted by the second-order kinetic model, which indicates that chemicalsorption is the rate limiting step, inside of mass transfer.

TL;DR: In this article, the authors investigated the biosorption of Pb(II), Ni(II) and Cr(VI) ions onto inactive Saccharomyces cerevisiae as a function of initial pH, initial metal ion concentration and temperature.

TL;DR: The results indicate that the effective uptake of Ni(II) ions was obtained by activating the carbon, prepared from almond husk at 700 degrees C, through the addition of H(2)SO(4).

TL;DR: This study shows the importance of environmental monitoring associated with simple but powerful statistics to better understand a complex water system.

TL;DR: A mass transfer model, which involves two parameters tau (50% breakthrough time) and k (proportionality constant), was proposed to describe breakthrough data of Co in the fixed beds packed with steel wool and Mg pellets, and the calculated breakthrough curves agreed well with the measured data.

TL;DR: Macroporous resins containing iminodiacetic acid (IDA) groups (Lewatit TP 207 and Chelex-100) were investigated as a function of concentration, temperature and pH for their sorption properties towards chromium(III).

TL;DR: Biosorption equilibrium was established in about 1.0h and the equilibrium was well described by Langmuir and Freundlich isotherms, and a temperature change in the range of 15-45 degrees C did not affect the biosorption capacity.

TL;DR: The electrochemical treatment system was effective on biologically treated wastewater from hog raising, and the treatment of raw wastewater was not remarkable, therefore, the electro chemical treatment system requires pretreatment when used with wastewater containing high concentrations of suspended solids.

TL;DR: Alkaline thermal hydrolysis using Ca(OH)(2) is efficient in reducing the residual sludge amounts and in improving the dewaterability and the mass and energy balances of a wastewater treatment plant with/without advanced sludge treatment (AST) are compared.

TL;DR: Among PV process parameters documented here are process temperature, permeate pressure, feed concentration, and feed flow rate, which have been studied extensively and have borne fruit in a better understanding of many aspects of PV processes.

TL;DR: In this article, the pre-oxidation of an extremely polluted pharmaceutical wastewater (chemical oxygen demand (COD) value of 362,000mg/l) using the Fenton's reagent has been systematically studied using an experimental design technique.

TL;DR: The present work reports on the use of diamond anodes for the chemical oxygen demand (COD) removal from several industrial wastewater and from two synthetic wastewaters with malic acid and ethylenediaminetetraacetic (EDTA) acid.

TL;DR: A novel extraction procedure has been developed for treating phenolic wastewater and a pilot-scale LLES worked well and is strongly dependent on the intermolecular interactions between the phenol and extractants.

TL;DR: Removal of phenol and p-chlorophenol from synthetic single and bisolute aqueous solutions at 303.15 K through adsorption on Amberlite XAD-16 resin under batch equilibrium and dynamic column experimental conditions was investigated and it was indicated that the advertisersorption capacity of the resin remained unchanged.

TL;DR: Details of two bench-scale processes, one for rejuvenation of spent hydroprocessing catalysts, and the other for producing non-leachable synthetic aggregate materials that were developed in this laboratory, are presented.

TL;DR: This work studies the effectiveness of a process proposed for the recovery of ethylenediaminetetraacetic acid (EDTA) and metal precipitation from soil flushing solutions and found it suitable for reuse after adding an alkaline agent.

TL;DR: In this article, the authors described the experimental laboratory results of H(2)O(2)-oxidation of thickened sludge, based upon the optimum conditions obtained in these laboratory tests, pilot-scale experiments are conducted.

TL;DR: Assessment of kinetics of abatement from aqueous solutions of clofibric acid (a metabolite of the blood lipid regulator clofibrate) which has been found in surface, ground and drinking waters finds Ozonation and hydrogen peroxide photolysis are capable of fast removal of this species in aqueously solution.

TL;DR: The susceptibility of each PAH to chemical oxidation was a function of TOC in four of the soils, but was strongly dependent on soil porosity for low-TOC soils, with the relative contribution of porosity-mediated sequestration becoming more important over time.