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M P Kaur - One of the best experts on this subject based on the ideXlab platform.
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Agricultural Waste MATERIAL AS POTENTIAL ADSORBENT FOR SEQUESTERING HEAVY METAL IONS FROM AQUEOUS SOLUTIONS
Water Sciences and Engineering Technology, 2020Co-Authors: Garima Mahajan, M P KaurAbstract:Agricultural Waste materials as a potential heavy metal ion adsorbent are usually composed of cellulose and lignin as the main constituents. This paper reviews several Agricultural Waste materials and its modified forms as adsorbents for the removal of heavy metals from aqueous solutions. The adsorption mechanisms and the influences, such as pH, initial heavy metal ions concentrations, adsorbent dosage and reaction temperature, on the adsorption of modified Agricultural Wastes were discussed as well. What's more, applying prospect of modified Agricultural Waste materials in Waste water treatment is also presented.
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Agricultural Waste material as potential adsorbent for sequestering heavy metal ions from aqueous solutions a review
Bioresource Technology, 2008Co-Authors: Dhiraj Sud, Garima Mahajan, M P KaurAbstract:Abstract Heavy metal remediation of aqueous streams is of special concern due to recalcitrant and persistency of heavy metals in environment. Conventional treatment technologies for the removal of these toxic heavy metals are not economical and further generate huge quantity of toxic chemical sludge. Biosorption is emerging as a potential alternative to the existing conventional technologies for the removal and/or recovery of metal ions from aqueous solutions. The major advantages of biosorption over conventional treatment methods include: low cost, high efficiency, minimization of chemical or biological sludge, regeneration of biosorbents and possibility of metal recovery. Cellulosic Agricultural Waste materials are an abundant source for significant metal biosorption. The functional groups present in Agricultural Waste biomass viz. acetamido, alcoholic, carbonyl, phenolic, amido, amino, sulphydryl groups etc. have affinity for heavy metal ions to form metal complexes or chelates. The mechanism of biosorption process includes chemisorption, complexation, adsorption on surface, diffusion through pores and ion exchange etc. The purpose of this review article is to provide the scattered available information on various aspects of utilization of the Agricultural Waste materials for heavy metal removal. Agricultural Waste material being highly efficient, low cost and renewable source of biomass can be exploited for heavy metal remediation. Further these biosorbents can be modified for better efficiency and multiple reuses to enhance their applicability at industrial scale.
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removal of nickel ii from aqueous solution by adsorption on Agricultural Waste biomass using a response surface methodological approach
Bioresource Technology, 2008Co-Authors: Umesh Kumar Garg, M P Kaur, V K GargAbstract:Abstract In the present study, effect of adsorbent dose, pH and agitation speed on nickel removal from aqueous medium using an Agricultural Waste biomass, Sugarcane bagasse has been investigated. Batch mode experiments were carried out to assess the adsorption equilibrium. The influence of three parameters on the removal of nickel was also examined using a response surface methodological approach. The central composite face-centered experimental design in response surface methodology (RSM) by Design Expert Version 6.0.10 (Stat Ease, USA) was used for designing the experiments as well as for full response surface estimation. The optimum conditions for maximum removal of nickel from an aqueous solution of 50 mg/L were as follows: adsorbent dose (1500 mg/L), pH (7.52) and stirring speed (150 rpm). This was evidenced by the higher value of coefficient of determination (r2 = 0.9873).
B H Hameed - One of the best experts on this subject based on the ideXlab platform.
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batch adsorption of methylene blue from aqueous solution by garlic peel an Agricultural Waste biomass
Journal of Hazardous Materials, 2009Co-Authors: B H Hameed, Anees AhmadAbstract:Abstract The potential of garlic peel (GP), Agricultural Waste, to remove methylene blue (MB) from aqueous solution was evaluated in a batch process. Experiments were carried out as function of contact time, initial concentration (25–200 mg/L), pH (4–12) and temperature (303, 313 and 323 K). Adsorption isotherms were modeled with the Langmuir, Freundlich, and Temkin isotherms. The data fitted well with the Freundlich isotherm. The maximum monolayer adsorption capacities were found to be 82.64, 123.45, and 142.86 mg/g at 303, 313, and 323 K, respectively. The kinetic data were analyzed using pseudo-first-order and pseudo-second-order models. The results indicated that the garlic peel could be an alternative for more costly adsorbents used for dye removal.
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a novel Agricultural Waste adsorbent for the removal of cationic dye from aqueous solutions
Journal of Hazardous Materials, 2009Co-Authors: B H Hameed, R R Krishni, Suhairi A SataAbstract:Abstract In this paper, pineapple stem (PS) Waste, an Agricultural Waste available in large quantity in Malaysia, was utilized as low-cost adsorbent to remove basic dye (methylene blue, MB) from aqueous solution by adsorption. Batch mode experiments were conducted at 30 °C to study the effects of initial concentration of methylene blue, contact time and pH on dye adsorption. Equilibrium adsorption isotherms and kinetic were investigated. The experimental data were analyzed by the Langmuir and Freundlich models and the isotherm data fitted well to the Langmuir isotherm with monolayer adsorption capacity of 119.05 mg/g. The kinetic data obtained at different concentrations were analyzed using a pseudo-first-order and pseudo-second-order equation and intraparticle diffusion equation. The experimental data fitted very well the pseudo-second-order kinetic model. The PS was found to be very effective adsorbent for MB adsorption.
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equilibrium and kinetic studies of methyl violet sorption by Agricultural Waste
Journal of Hazardous Materials, 2008Co-Authors: B H HameedAbstract:Abstract In this work, sunflower (Helianthus annuus L.) seed hull (SSH), an Agricultural Waste, was evaluated for its ability to remove methyl violet (MV) from aqueous solutions. Sorption isotherm of MV onto the SSH was determined at 30 °C with the initial concentrations of MV in the range of 25–300 mg/L. The equilibrium data were analyzed using the Langmuir, Freundlich and Temkin isotherm models. The equilibrium process was described well by the Freundlich isotherm model. The maximum SSH sorption capacity was found to be 92.59 mg/L at 30 °C. The kinetic data were studied in terms of the pseudo-first-order, pseudo-second-order and intraparticle diffusion kinetic models. The pseudo-second-order model best described the sorption process. A single-stage batch-adsorber design of the adsorption of MV onto SSH was studied based on the Freundlich isotherm equation. The results indicated that sunflower seed hull was an attractive candidate for removing methyl violet from aqueous solution.
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sorption kinetics and isotherm studies of a cationic dye using Agricultural Waste broad bean peels
Journal of Hazardous Materials, 2008Co-Authors: B H Hameed, Mohammad I ElkhaiaryAbstract:Abstract In this paper, broad bean peels (BBP), an Agricultural Waste, was evaluated for its ability to remove cationic dye (methylene blue) from aqueous solutions. Batch mode experiments were conducted at 30 °C. Equilibrium sorption isotherms and kinetics were investigated. The kinetic data obtained at different concentrations have been analyzed using pseudo-first-order, pseudo-second-order and intraparticle diffusion equations. The experimental data fitted very well the pseudo-first-order kinetic model. Analysis of the temportal change of q indicates that at the beginning of the process the overall rate of adsorption is controlled by film-diffusion, then at later stage intraparticle-diffusion controls the rate. Diffusion coefficients and times of transition from film to pore-diffusion control were estimated by piecewise linear regression. The experimental data were analyzed by the Langmuir and Freundlich models. The sorption isotherm data fitted well to Langmuir isotherm and the monolayer adsorption capacity was found to be 192.7 mg/g and the equilibrium adsorption constant Ka is 0.07145 l/mg at 30 °C. The results revealed that BBP was a promising sorbent for the removal of methylene blue from aqueous solutions.
Anna Witekkrowiak - One of the best experts on this subject based on the ideXlab platform.
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Agricultural Waste peels as versatile biomass for water purification a review
Chemical Engineering Journal, 2015Co-Authors: Amit Bhatnagar, Mika Sillanpaa, Anna WitekkrowiakAbstract:Abstract Agricultural Waste peels have been recognized as an ecological burden for the society. However, Waste peels , as lignocellulosic biomass-rich materials, have stimulated new gateways for the production of renewable, low cost and sustainable adsorbents for water treatment applications. This review compiles the work conducted by various researchers over the last few decades on the use of various Agricultural Waste peels as adsorbents for the water and Wastewater treatment. In this review, adsorption capacities for organic and inorganic pollutants by different peel-based adsorbents are summarized. Wherever applicable, different modification methods, which have been employed to develop modified peel-based adsorbents, have also been presented to highlight and discuss the key advancements on the preparation of novel adsorbents using Agricultural Waste peels . Adsorption mechanisms responsible for pollutants removal by peel-based adsorbents have also been discussed. Finally, conclusions have been drawn from the literature reviewed. The paper also discusses the future research needs in the area of biosorbent development utilizing Agricultural Waste peels for application in water treatment.
Bassim H. Hameed - One of the best experts on this subject based on the ideXlab platform.
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Batch adsorption of methylene blue from aqueous solution by garlic peel, an Agricultural Waste biomass
Journal of Hazardous Materials, 2009Co-Authors: Bassim H. Hameed, A. A. AhmadAbstract:The potential of garlic peel (GP), Agricultural Waste, to remove methylene blue (MB) from aqueous solution was evaluated in a batch process. Experiments were carried out as function of contact time, initial concentration (25-200 mg/L), pH (4-12) and temperature (303, 313 and 323 K). Adsorption isotherms were modeled with the Langmuir, Freundlich, and Temkin isotherms. The data fitted well with the Freundlich isotherm. The maximum monolayer adsorption capacities were found to be 82.64, 123.45, and 142.86 mg/g at 303, 313, and 323 K, respectively. The kinetic data were analyzed using pseudo-first-order and pseudo-second-order models. The results indicated that the garlic peel could be an alternative for more costly adsorbents used for dye removal. © 2008 Elsevier B.V. All rights reserved.
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Sorption kinetics and isotherm studies of a cationic dye using Agricultural Waste: Broad bean peels
Journal of Hazardous Materials, 2008Co-Authors: Bassim H. Hameed, M. I. El-khaiaryAbstract:In this paper, broad bean peels (BBP), an Agricultural Waste, was evaluated for its ability to remove cationic dye (methylene blue) from aqueous solutions. Batch mode experiments were conducted at 30 °C. Equilibrium sorption isotherms and kinetics were investigated. The kinetic data obtained at different concentrations have been analyzed using pseudo-first-order, pseudo-second-order and intraparticle diffusion equations. The experimental data fitted very well the pseudo-first-order kinetic model. Analysis of the temportal change of q indicates that at the beginning of the process the overall rate of adsorption is controlled by film-diffusion, then at later stage intraparticle-diffusion controls the rate. Diffusion coefficients and times of transition from film to pore-diffusion control were estimated by piecewise linear regression. The experimental data were analyzed by the Langmuir and Freundlich models. The sorption isotherm data fitted well to Langmuir isotherm and the monolayer adsorption capacity was found to be 192.7 mg/g and the equilibrium adsorption constant Kais 0.07145 l/mg at 30 °C. The results revealed that BBP was a promising sorbent for the removal of methylene blue from aqueous solutions. © 2007 Elsevier B.V. All rights reserved.
Guangming Zeng - One of the best experts on this subject based on the ideXlab platform.
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effect of phanerochaete chrysosporium inoculation on bacterial community and metal stabilization in lead contaminated Agricultural Waste composting
Bioresource Technology, 2017Co-Authors: Chao Huang, Guangming Zeng, Danlian Huang, Piao Xu, Chen Zhang, Min Cheng, Liang Hu, Yi ZhangAbstract:Abstract The effects of Phanerochaete chrysosporium inoculation on bacterial community and lead (Pb) stabilization in composting of Pb-contaminated Agricultural Waste were studied. It was found that the bioavailable Pb was transformed to stable Pb after composting with inoculum of P. chrysosporium . Pearson correlation analysis revealed that total organic carbon (TOC) and carbon/nitrogen (C/N) ratio significantly ( P P. chrysosporium . Redundancy analysis indicated that C/N ratio, total organic matter, temperature and soluble-exchangeable Pb were the significant parameters to affect the bacterial community structure, solely explained 14.7%, 11.1%, 10.4% and 8.3% of the variation in bacterial community composition, respectively. In addition, the main bacterial species, being related to organic matter degradation and Pb stabilization, were found. These findings will provide useful information for composting of heavy metal-contaminated organic Wastes.
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nitrite reductase genes as functional markers to investigate diversity of denitrifying bacteria during Agricultural Waste composting
Applied Microbiology and Biotechnology, 2014Co-Authors: Yaoning Chen, Guangming Zeng, Jiachao Zhang, Wei Zhou, Yuanping Li, Aizhi Huang, Jingxia HuangAbstract:The purpose of this study was to investigate the diversity of denitrifier community during Agricultural Waste composting. The diversity and dynamics of the denitrifying genes (nirK and nirS) were determined using polymerase chain reaction–denaturing gradient gel electrophoresis (PCR-DGGE). Relationships between physico-chemical parameters and denitrifying genes structures were simultaneously evaluated by redundancy analysis (RDA). Phylogenetic analysis indicated that nirK clones grouped into six clusters and nirS clones into two major clusters, respectively. The results showed a very high diversity of nir gene sequences within composting samples. RDA showed that the nirK and nirS gene structures were significantly related to pH and pile temperature (P < 0.05). Significant amounts of the variation (49.2 and 38.3 % for nirK and nirS genes, respectively) were explained by pH and pile temperature, suggesting that those two parameters were the most likely ones to influence, or be influenced by the denitrifiers harboring nirK and nirS genes.
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relative contributions of archaea and bacteria to microbial ammonia oxidation differ under different conditions during Agricultural Waste composting
Bioresource Technology, 2011Co-Authors: Guangming Zeng, Jiachao Zhang, Yaoning Chen, Zhen Yu, Man Yu, Hui Li, Ming Chen, Lunhui Lu, Chunxiao HuAbstract:The aim of this study was to compare the relative contribution of ammonia-oxidizing archaea (AOA) and bacteria (AOB) to nitrification during Agricultural Waste composting. The AOA and AOB amoA gene abundance and composition were determined by quantitative PCR and denaturing gradient gel electrophoresis (DGGE), respectively. The results showed that the archaeal amoA gene was abundant throughout the composting process, while the bacterial amoA gene abundance decreased to undetectable level during the thermophilic and cooling stages. DGGE showed more diverse archaeal amoA gene composition when the potential ammonia oxidation (PAO) rate reached peak values. A significant positive relationship was observed between the PAO rate and the archaeal amoA gene abundance (R 2 = 0.554; P < 0.001), indicating
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effects of physico chemical parameters on the bacterial and fungal communities during Agricultural Waste composting
Bioresource Technology, 2011Co-Authors: Jiachao Zhang, Guangming Zeng, Yaoning Chen, Zhen Yu, Man Yu, Hui Li, Yong Yu, Hongli HuangAbstract:The goal of this study was to identify and prioritize some of the physico-chemical parameters that contributed to bacterial and fungal community compositions during Agricultural Waste composting. Relationships between those parameters and microbial community compositions determined by PCR-DGGE were simultaneously evaluated by redundancy analysis (RDA). The results showed that the temporal variation of bacterial community composition was significantly related to water soluble carbon (WSC), ammonium and nitrate (P < 0.05), while the most variation in distribution of fungal community composition was statistically explained by pile temperature, WSC, and moisture content (P < 0.05). Significant amounts of the variation (54.9% and 56.0% for bacterial and fungal species data, respectively) were explained by those parameters, suggesting that those parameters were the most likely ones to influence, or be influenced by the bacterial and fungal species. Variation partitioning analyses indicated that WSC and pile temperature showed predominant effect on the bacterial and fungal community composition, respectively.
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microbial community succession and lignocellulose degradation during Agricultural Waste composting
Biodegradation, 2007Co-Authors: Hongyan Yu, Guangming Zeng, Hongli Huang, Xingmei Xi, Renyou Wang, Danlian Huang, G H Huang, Jianbing LiAbstract:The changes of microbial community during Agricultural Waste composting were successfully studied by quinone profiles. Mesophilic bacteria indicated by MK-7 and mesophilic fungi containing Q-9 as major quinone were predominant and seemed to be important during the initial stage of composting. Actinobacteria indicated by a series of partially saturated and long-chain menaquinones were preponderant during the thermophilic period. While Actinobacteria, fungi and some bacteria, especially those microbes containing MK-7(H4) found in Gram-positive bacteria with a low G+C content or Actinobacteria were found cooperate during the latter maturating period. Since lignocellulsoe is abundant in the Agricultural Wastes and its degradation is essential for the operation of composting, it’s important to establish the correlation between the quinone profiles changes and lignocellulose degradation. The microbes containing Q-9 or Q-10(H2) as major quinone were found to be the most important hemicellulose and cellulose degrading microorganisms during composting. While the microorganisms containing Q-9(H2) as major quinone and many thermophilic Actinobacteria were believed to be responsible for lignin degradation during Agricultural Waste composting.
