International Journal of Environment and Waste Management (Int J Environ Waste Manag )

Description

IJEWM is a refereed reference and authoritative source of information in the field of environmental and waste management Together with its sister publications IJEP, IJETM and IJGEnvI, it provides a comprehensive coverage of environmental issues. It covers both engineering/technical and management solutions.

  • Impact factor
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  • 5-year impact
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  • Website
    International Journal of Environment and Waste Management website
  • Other titles
    Int. j. environment and waste management, IJEWM
  • ISSN
    1478-9868
  • OCLC
    316125169
  • Material type
    Document, Periodical, Internet resource
  • Document type
    Internet Resource, Computer File, Journal / Magazine / Newspaper

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: The risk of fires at municipal solid waste (MSW) storage sites is of great concern because such fires not only result in material losses worth millions of Euros annually but also have deleterious effects on both human health and the environment. Keeping in view that management decisions addressing risk of fires cannot be divorced from human psychology regarding safety, a questionnaire survey was designed for which 187 respondents gave a response rate of 33%. Survey results showed that three types of biases; optimism, attribution and availability bias, prevail among managers of waste management companies. Furthermore biased respondents had experienced higher frequency of fire incidents and preferred low cost risk averting technologies. It is concluded that there is a need to acknowledge the existence of biases and to improve the decision making skills of managers with the help of risk awareness programs and implementation of government steering tools to reduce risk of spontaneous fires.
    International Journal of Environment and Waste Management 09/2014; 14(2):16.
  • [Show abstract] [Hide abstract]
    ABSTRACT: Improvement of collection operation by route optimization is complex and time consuming. This study illustrates the application of an efficient and high speed optimization software; Premium Solver Platform V.12 to optimize tours for the collection of municipal solid waste in Ilorin, Nigeria. Data required for optimization was obtained from the municipal solid waste management authority, field studies and digitized map of Ilorin. Thereafter the optimization problem was then formulated as a travelling salesman problem (TSP) on a Microsoft Excel spreadsheet. The solver engine of the software generated optimal result for the TSP in less than 1 second for each computer run and the overall output showed reduction in the tour distance by 0.27 to 32.16 %. This reduction could in turn decrease time, costs and emissions associated with collection operation. The method proposed in this study can also generate accurate decisions within a short period for large routing problems especially in mega cities.
    International Journal of Environment and Waste Management 08/2014; 14(3):222-231.
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    ABSTRACT: In this study, Al-Qateef wastewater treatment plant was selected as a case representing the upgrade of carrousel technology with tertiary treatment. This technology is applied in many cities in the Eastern province, Kingdom of Saudi Arabia. The use of chemical treatment alternative for phosphorous removal was evaluated versus the newly implemented tertiary treatment unit. The study showed that chemical phosphorous removal has an additional advantage of reducing the final effluent total phosphorus concentration to less than 1 mg/L at an alum dose of 50 mg/L without any significant alteration of the expected final effluent quality that could be achieved by the newly installed sand filters. Furthermore, the study showed that the use of chemical treatment for phosphorous removal could reduce the chlorine dose required for the treated effluent disinfection.
    International Journal of Environment and Waste Management 07/2014; 14(1):1-13.
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    ABSTRACT: This work concerns the synthesis of NaY zeolite derived from low-cost materials like fly ash (FA) for degradation of Acid Orange 7 (AO7) by catalytic wet peroxide oxidation. Synthesized NaY zeolite is characterized using XRD, SEM/EDAX and FTIR. The results indicate that synthesized NaY zeolite is a promising catalyst for dye removal. The effects of various operating parameters like temperature, initial pH, hydrogen peroxide concentration and catalyst loading on the removal of dye, colour and COD from an aqueous solution were studied at atmospheric pressure. The percent removals of dye, colour and COD at optimum pH0 2, 90 oC using 0.6 ml H2O2 solution and 1.5 g/l catalyst was 97% (in 4 h), 99.8% (in 45 min) and 70% (in 4 h), respectively. The % dye removal has been found to be less in comparison to % colour removal at all conditions, e.g. dye removal in 45 min and at above conditions was 82%, whereas the colour removal was 99.8%. Dye, colour and COD removals were maximum at pH0 2.
    International Journal of Environment and Waste Management 03/2014;
  • [Show abstract] [Hide abstract]
    ABSTRACT: This work concerns the synthesis of NaY zeolite derived from low-cost materials like fly ash (FA) for degradation of Acid Orange 7 (AO7) by catalytic wet peroxide oxidation. Synthesized NaY zeolite is characterized using XRD, SEM/EDAX and FTIR. The results indicate that synthesized NaY zeolite is a promising catalyst for dye removal. The effects of various operating parameters like temperature, initial pH, hydrogen peroxide concentration and catalyst loading on the removal of dye, colour and COD from an aqueous solution were studied at atmospheric pressure. The percent removals of dye, colour and COD at optimum pH0 2, 90 oC using 0.6 ml H2O2 solution and 1.5 g/l catalyst was 97% (in 4 h), 99.8% (in 45 min) and 70% (in 4 h), respectively. The % dye removal has been found to be less in comparison to % colour removal at all conditions, e.g. dye removal in 45 min and at above conditions was 82%, whereas the colour removal was 99.8%. Dye, colour and COD removals were maximum at pH0 2.
    International Journal of Environment and Waste Management 02/2014;
  • International Journal of Environment and Waste Management 01/2014; 14(2):134-148.
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    ABSTRACT: The removal of Ni (II) from aqueous solutions using citric acid activated Hydrilla Verticillata biomass has been studied under batch conditions. The biosorbent characteristics were studied. Batch experiments were performed to study the biosorption of Ni (II) with respect to the effect of operating parameters like initial pH, adsorbent dosage, initial metal concentration, contact time and temperature. The adsorption of Ni (II) increased with increase in contact timer and reached equilibrium at 180 min. The maximum removal efficiency was attained at pH 5.0. The uptake capacity was found to decrease with increase in temperature confirming the exothermic nature of sorption process. The equilibrium data was fitted to three isotherms namely Langmuir, Freundlich and Temkin isotherms. Langmuir model provided the best correlation (R2 > 0.98) for the biosorption of Ni (II) by the selected sorbent and the monolayer biosorption capacity was found to be 11.9 mg g–1.
    International Journal of Environment and Waste Management 01/2014; 14(1):14-26.
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    ABSTRACT: Packed columns were prepared using Posidonia oceanica fibres as adsorbent for the removal of a direct dye, Congo red (CR), from aqueous solution. The effects of flow rate, concentration of CR, pH solution and bed depth on breakthrough curves were investigated. The experimental results showed that the breakthrough time decreased with the increase of flow rate, influent concentration and the decrease of bed depth. The amount of sorbed dye decreased by increasing the flow rate and increased by increasing the dye concentration and bed height. The removal of CR by raw Posidonia fibres reached 80% with a dye concentration of 10 mg.l−1 at the flow rate of 0.47 ml.min−1 and at pH 6.5. Thomas, Yoon-Nelson, Adams-Bohart and bed depth/service time analysis (BDST) models were successfully used to analyse experimental data, to predict the breakthrough curves and to determine the characteristic parameters of the column useful for the process design.
    International Journal of Environment and Waste Management 01/2014; 13(1):1 - 22.
  • [Show abstract] [Hide abstract]
    ABSTRACT: The removal of Ni (II) from aqueous solutions using citric acid activated Hydrilla Verticillata biomass has been studied under batch conditions. The biosorbent characteristics were studied. Batch experiments were performed to study the biosorption of Ni (II) with respect to the effect of operating parameters like initial pH, adsorbent dosage, initial metal concentration, contact time and temperature. The adsorption of Ni (II) increased with increase in contact timer and reached equilibrium at 180 min. The maximum removal efficiency was attained at pH 5.0. The uptake capacity was found to decrease with increase in temperature confirming the exothermic nature of sorption process. The equilibrium data was fitted to three isotherms namely Langmuir, Freundlich and Temkin isotherms. Langmuir model provided the best correlation (R2 > 0.98) for the biosorption of Ni (II) by the selected sorbent and the monolayer biosorption capacity was found to be 11.9 mg g–1.
    International Journal of Environment and Waste Management 01/2014; 14(1):14-26.
  • [Show abstract] [Hide abstract]
    ABSTRACT: A Hybrid Cells in Series (HCIS) model with decay (HCIS-D) has been conceptualised to simulate advection, dispersion, decay governed pollutant transport. The cells consist of a plug flow zone followed by two unequal size thoroughly mixed zones applied to steady flow and prismatic stream reaches. Compared to the analytical solution of the advection-dispersion-decay equation, the HCIS–D simulations were in good agreement when the size of the hybrid unit, Δx, satisfies the condition, Δx u/D<sub align="right"> L </sub> ≥ 4 or [(α + T<sub align="right"> 1 </sub> + T<sub align="right"> 2 </sub>)u/Δx] ≈ 1, where u is the mean flow velocity, D<sub align="right"> L </sub> is the longitudinal dispersion co-efficient, α, T<sub align="right"> 1 </sub> and T<sub align="right"> 2 </sub> are residence times of plug flow zone, first and second mixed zones of hybrid unit respectively. The potential of the HCIS-D model has been demonstrated using synthetic and field data and the results of the HCIS–D model for non-conservative/decaying pollutant transport were in the expected lines.
    International Journal of Environment and Waste Management 05/2013;
  • International Journal of Environment and Waste Management 01/2013;
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    ABSTRACT: In this study, attempts were made to examine the efficiency of radiation combined with coagulation with aluminium sulphate and adsorption using granular activated carbon (GAC) for treatment of paint wastewater and its reuse for different purpose. Parameters affecting microorganism disinfection such as radiation dose showed that complete disinfection was obtained at radiation dose 2 kGy. Factors affecting coagulation such as settling time, aluminium sulphate concentration were also studied, it was found that Al2(SO4)3.16H2O at concentration 10 g/L and pH 8 showed the better coagulation at 51 sec compared with other concentrations. A combined treatment of radiation followed by coagulation and adsorption by GAC of a dose (2 g/100 ml supernatant) showed a reduction in sulphate concentration 50%, COD 92% and BOD 98.5%. Also the obtained supernatant can be used for some irrigation purposes, whereas the coagulant was used as filler and showed the same physical parameters compared with the original one. Thus, this study might offer an effective way for wastewater treatment of paint industry.
    International Journal of Environment and Waste Management 01/2013; 11(1):87-99.
  • International Journal of Environment and Waste Management 01/2013; 11(1):75-88.
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    ABSTRACT: Vermifiltration is an innovative wastewater treatment process that implies the use of composting worms to treat water loaded with organic contaminants. It is considered to be an innovative technology that provides a sustainable solution for the treatment of wastewater with synchronous sludge reduction and treatment. In this paper, an overview of vermifiltration systems in liquid waste management is presented. The paper starts by giving an overview of the vermifiltration process and then provides details of current studies and technologies used to treat wastewater using the vermifiltration process. The anti-clogging nature of vermifiltration systems is compared with other biological treatment systems and the key factors influencing the process and the treatment efficiency of the process are critically reviewed. The scope and improvements to the process are finally suggested.
    International Journal of Environment and Waste Management 01/2013; 12(4):382-396.

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