Krim Louhab

• Professor
• University of Boumerdes

1er Workshop virtuel portant sur : la contribution de l’électrochimie sur l’économie circulaire

Olive tree (Olea Europea L.) is one of the most important crops in the Mediterranean countries. The global olive oil industry annually generates many tons of olive leaves as waste. The present study aims at a valorisation of Algerian olive leaves harvested from the region of Bouira for therapeutic use. In order to evaluate the biological effects of...

The aim of this study is to envisage the possibility of modelling the adsorption kinetics of methylene blue (MB) by activated carbon using the Peleg's model. Equation often used to describe the sorption and absorption kinetics of water by the material. The study of equilibrium adsorption was also envisaged in this study and the isotherms of Langmui...

Milk is a very important part of our diet, due to the high demand on this product and the relevance of the environmental effects from its production. Hence, it was necessary to determine the environmental consequences related to this process.

The present study consists of comparing the retention of paracetamol dispersed in aqueous solutions by two different natural adsorbents commonly found in Algeria, namely olive stones (OS) and date pits (DP). Comparative study was carried out using adsorption parameters such as contact time, temperature and initial concentration of paracetamol. The...

The objective of this work was to study the efficiency of activated carbon prepared from agricultural waste (olive stones; OS) on diclofenac (DCF) adsorption in aqueous solutions. The prepared charcoals were characterized by Fourier transform infrared (FTIR), scanning electron microscopy (SEM)/Energy Dispersive X-Ray Analyser (EDX), and Brunauer–Em...

In this study, the valorization of the agricultural by-products “date stones” (DS) by pyrolysis in the absence of oxygen at 300–600°C, and activation by ZnCl2 were studied. The characterization of the adsorbent was carried out by Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), as well as specific surface area mea...

In this research, adsorption of chromium onto the mixture of olive stone and date pit has been studied through using batch adsorption techniques. The main objectives of this study are to investigate the chromium adsorption from aqueous solution by mixture of olive stone and date pit and to study the influence of contact time, pH and initial chromiu...

The aim of this study is to evaluate the environmental impact of atmospheric emission of two kinds of cement portland processes in the Algerian factories on fauna and flora. The first uses the dry process and is located in a rural area (Sour El Ghozlane) and second is in an urban area (Rais Hamidou) and uses the wet process. To evaluate the atmosph...

The aim of this work is to investigate the potential of olive stones 'OS' and date pits 'DP' waste as natural adsorbents for the removal of paracetamol 'PAC'. The influence of reaction parameters such as contact time and temperature was also evaluated. For a constant mass of olive stones and date pits heat treated at different temperatures (500°C,...

This study aims to investigate the potential use of natural materials (homogeneous mixture of date pits and olive stone) from agricultural activity for the treatment of wastewater, loaded with metal pollutant: chromium. These two materials were chemically activated with phosphoric acid, by mixing with various percentages to obtain a homogeneous sol...

Diclofenac (DCF) is a pharmaceutical residue of therapeutic class of non-steroidal anti-inflammatory. It is often detected in the wastewater treatment plants (influent and effluent) and surface waters. This review focuses on its biodegradation with activated sludge (CAS) or bioreactor membrane (MBR). Microorganisms play a key role in this biodegrad...

In this paper, the adsorption of anionic dye Bezaktiv Yellow HE-4G onto mixture biosorbent, olive stones and date pits was investigated in packed bed column. The effect of operational parameter such as initial dye concentration, flow rate and height bed was evaluated. Thomas model was used to describe the adsorption data. Adjunction date pits to th...

Life cycle impact assessment (LCIA) is one of basic steps in life cycle assessment methodology (LCA). This paper presents the application of approach LCA for the rejections of drugs company SAIDAL, in order to determine the environmental impacts relative to this industrial activity, since it is classified among industry leader in the pharmaceutical...

The present study focuses on the recovery of the mixed waste food « the date pits and olive stones» in the field of industrial liquid effluent treatment.The materials was mixed and used in their native form to improve their adsorptive capacity. A rang of physicochemical analysis was performed, for the characterization of adsorbents used, among them...

The present study focuses on the recovery of the mixed waste food « the date pits and olive stones» in the field of industrial liquid effluent treatment. The materials was mixed and used in their native form to improve their adsorptive capacity. A rang of physicochemical analysis was performed, for the characterization of adsorbents used, among the...

Life cycle impact assessment (LCIA) is one of basic steps in life cycle assessment methodology (LCA). This paper presents the application of approach LCA for the rejections of drugs company SAIDAL, in order to determine the environmental impacts relative to this industrial activity, since it is classified among industry leader in the pharmaceutical...

The aim of this study is the use of Life Cycle Assessment, to evaluate the impact generated by cement manufactory situated in Sour EL Ghozlane town in Algeria country, which use the dry process to produce cement Portland. The LCA method is used for compiling and examining the inputs and outputs of energy, raw material and environmental impacts dire...

In this paper, the adsorption of an anions dye Bezaktiv Yellow HE-4G onto mixture biosorbent, olive stones and date pits was investigated in aqueous solution. The effect of operational parameter such as initial dye concentration, time contact, temperature and pH was evaluated. The pseudo first-order and the pseudo second-order were used to describe...

The aim of this study is the use of Life Cycle Assessment, to evaluate the impact generated by cement manufactory situated in Sour EL Ghozlane town in Algeria country, which use the dry process to produce cement Portland. The LCA method is used for compiling and examining the inputs and outputs of energy, raw material and environmental impacts dire...

In this paper, the adsorption of an anions dye Bezaktiv Yellow HE-4G onto mixture biosorbent, olive stones and date pits was investigated in aqueous solution. The effect of operational parameter such as initial dye concentration, time contact, temperature and pH was evaluated. The pseudo firstorder and the pseudo second-order were used to describe...

The objective of our study is the development of clay of the western region of Algeria. The experimental study is the preparation and characterization of the modified clay techniques namely: (FTIR, DRX, FX) and physic-chemical analyzes (CEC, specific surface, swelling test., the acid index). Secondly, it is to achieve the elimination of copper ions...

The aim of this study is to evaluate or to assess the environmental impact of two kinds of cement Portland processes in the Algerian manufactories: That the first one- The dry process situated in a rural region (Sour El Ghozlane) and the second one-the wet process situated in an urban region (Rais Hamidou). To evaluate the potential impacts generat...

Environmental impact assessment will soon become a compulsory phase in future potable water production projects, in algeria, especially, when alternative treatment processes such sedimentation ,coagulation sand filtration and Desinfection are considered. An impact assessment tool is therefore developed for the environmental evaluation of potable wa...

In this research, adsorption of chromium onto the mixture of olive stone and date pit has been studied through using batch adsorption techniques. The main objectives of this study are to investigate the chromium adsorption from aqueous solution by mixture of olive stone and date pit and to study the influence of contact time, pH and initial chromiu...

The wastewater recycling is proving to be an absolute necessity for dealing with ever growing needs of the precious liquid (water), so several recycling techniques are used and it is very difficult for the decision-makers to choose between those who has the least influential environmental impacts on the environment. The environmental performance of...

The aim of this study is to remove Cd(II) ions from aqueous solutions by adsorption. Mixed sorbent prepared from olive stone and date pit, an agricultural solid by-product was used as adsorbent. The adsorption experiments of Cd(II) onto the mixture of olive stone and date pit were conducted at different parameters such as, percent of olive stone an...

This work is a contribution to the use of natural, cost-effective biosorbent in industrial wastewater treatment processes, addressing more particularly the effluents resulting from the tanning industry. A dead mycelial bacterial biomass (i.e. Streptomyces rimosus) collected as waste from an antibiotic production plant was tested as a biosorbent for...

This study focused on the biosorption of trivalent chromium onto mycelial bacterium (Streptomyces rimosus) biomass from effluent of tannery. The biomass was prepared by treatment with alkali. Fourier transforms-infra red analysis of the mycelial bacterial revealed the presence of carboxyl groups as possible binding sites. Experimental parameters af...

In the present investigation, dead bacterium biomass Streptomyces rimosus was used as an inexpensive and efficient biosorbent for Cr (III) removal from aqueous solution. The bacterial biomass was treated with 0.1 M NaOH. Sorption level of 65 mg/g was observed at pH 4.8 while precipitation effect augmented this value at higher pH range. Chromium des...

Dead streptomyces rimosus was found to be an effective biosorbent for the removal of chromium from industrial tanning effluents. A sorption level of 65 mg/g was observed at pH 4.8 while the precipitation effect augmented this value at a higher pH range. Chromium desorption increased with decreasing desorption agents pH (including HCl and H2SO4) to...

The thermodynamics of chromium ions sorption from aqueous solution on biomass fungi have been investigated. The experimental data was analysed by Langmiur and Scatchard isotherms. The equilibrium sorption capacity of chromium ions was determined from Langmiur and Scatchard equation at different temperature. Bad correlation coefficients were obtaine...

The kinetics and thermodynamic of adsorption of a mono-solute of chromium ions and of a bi-solute of chromium and calcium ions by fungi biomass ( Streptomycine rimosus ) was investigated in a batch system. The experimental data were analyzed based by Langmuir isotherm and a Pseudo second order mechanism, in the both the mono-and bi-solute adsorptio...

The evolution of bottom ash morphology and chromium metals behavior during incineration of a leather waste shavings at different incineration temperature have been studied. The Cr, Ca, Mg, Cl rates in bottom ashes, flay ashes and emitted gases in different incineration temperature of the tannery wastes are also determined. The morphology of the bot...

Heavy metals are present in different types of industrial effluent, being responsable for environmental pollution. Biosorption by the biomass fungic is a promising alternative method to treat industrial effluents, mainly because of its low cost and high metal binding capacity. In this paper we studied the effect of treatment at different concentrat...

Within the framework of our work in relation with the valorisation of waste, we focused mainly on the industrial waste of fungi fermentation resulting from the antibiotic industry of the pharmaceutical complex. This waste consists of residues of the cultivation of filamentous mushrooms as fermenters for the production of organic compounds such as o...

The kinetics of chromium ions sorption from aqueous solution on fungi biomass have been investigated in a batch system. The experimental data were analysed based on an intraparticle diffusion equation and a pseudo-second-order mechanism, in order to predict the constant rate of sorption and the equilibrium capacity with the effect of initial chromi...

The leather industries produce daily large amounts of effluents highly contaminated by chromium salts. The use of sorption phenomenon, especially biosorption on dead residues of microorganisms produced by fermentation industries, can be an economical alternative method to depollute these effluents from heavy toxic metals. In this study we have inve...