The Experts below are selected from a list of 17124 Experts worldwide ranked by ideXlab platform
R L Hackett - One of the best experts on this subject based on the ideXlab platform.
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wisconsin Timber Industry an assessment of Timber product output and use 1994 forest service resource bulletin
1997Co-Authors: R L Hackett, J W WhippleAbstract:In this bulletin we discuss recent Wisconsin forest Industry trends and report the results of a detailed study of forest indsutry, industrial roundwood production, and associated primary mill wood and bark residue in Wisconsin in 1994. Such detailed information is necessary for intelligent planning and decisionmaking in wood procurement, forest resource management, and forest Industry development. Likewise, researchers need current forest Industry and idustrial roundwood information for planning project.
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minnesota Timber Industry an assessment of Timber product output and use 1992 forest service resource bulletin
1997Co-Authors: R L Hackett, Richard A. DahlmanAbstract:In this bulletin, the authors discuss recent Minnesota forest Industry trends and report the results of a detailed study of forest industrial roundwood production, and associated primary mill wood and bark residue in Minnesota in 1992. Such detailed information is necessary for intelligent planning and decisionmaking in wood procurement, forest resource management, and forest Industry development. Likewise, researchers need current forest Industry and industrial roundwood information for planning projects.
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nebraska Timber Industry an assessment of Timber product output and use 1993 forest service resource bulletin
1996Co-Authors: R L Hackett, D M AdamsAbstract:Reports findings of a survey of all primary wood-using mills in Nebraska in 1993 and compares those findings with earlier surveys. Reports production and receipts of industrial roundwood by product, species, and county. Also reports the quantity, type, and disposition of wood and bark residues generated by Nebraska`s primary wood-using Industry.
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wisconsin Timber Industry an assessment of Timber product output and use 1992 forest service resource bulletin
1995Co-Authors: R L Hackett, J W WhippleAbstract:In this bulletin we discuss recent Wisconsin forest Industry trends and report results of a detailed study of forest Industry, industrial roundwood production, and associated primary mill wood and bark residue in Wisconsin in 1992. Such detailed information is necessary for intelligent planning and decisionmaking in wood procurement, forest resource management, and forest Industry development. Likewise, researchers need current forest Industry and industrial roundwood information for planning projects. The last published report from a detailed study of all industrial roundwood output in Wisconsin was in 1990. Most comparisons in this report are with the 1990 study results.
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missouri Timber Industry an assessment of Timber product output and use 1991 forest service resource bulletin
1993Co-Authors: R L Hackett, S G Jones, R J PivaAbstract:In 1991, 471 primary wood-using mills were operating in Missouri. Saw mills dominate Missouri's forest Industry in terms of volume of wood used. Missouri's production of industrial roundwood is reported by the five Forest Survey Units in the State. Industrial roundwood production rose from 100 million cubic feet in 1987 to 121 million cubic feet in 1991. Roundwood production increased 21 percent for hardwoods and 30 percent for softwoods. Saw logs accounted for 78 percent of the industrial roundwood harvest in 1991. During 1991, Missouri produced 16 thousand cords of pulpwood, 8 thousand cords less than in 1987. Missouri loggers cut 7.5 million board feet of veneer logs in 1991, 60 percent more than in 1987.
V K Garg - One of the best experts on this subject based on the ideXlab platform.
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a comparative study for the removal of hexavalent chromium from aqueous solution by agriculture wastes carbons
Journal of Hazardous Materials, 2009Co-Authors: Manjeet Bansal, Diwan Singh, V K GargAbstract:This paper reports the feasibility of using agricultural waste and Timber Industry waste carbons to remove Cr(VI) from synthetic wastewater under different experimental conditions. For this, rice husk and saw dust have been used as adsorbent after sulphuric acid treatment. Effect of various process parameters, namely, pH, adsorbent dose, initial chromium concentration and contact time has been studied in batch systems. Maximum metal removal was observed at pH 2.0. The efficiencies of rice husk carbon (RHC) and saw dust carbon (SDC) for Cr(VI) removal were 91.75% and 94.33%, respectively for aqueous solutions (250 mg L(-1)) at 20 g L(-1) adsorbent dose. The experimental data was analyzed using Freundlich, Langmuir, Dubinin-Redushkevich (D-R) and Temkin isotherm models. It was found that Langmuir, D-R and Temkin models fitted well. The results revealed that the hexavalent chromium is considerably adsorbed on RHC and SDC and it could be an economical method for the removal of hexavalent chromium from aqueous systems. FTIR and SEM of the adsorbents were recorded in native and Cr(VI)-loaded state to explore the number and position of various functional groups available for Cr(VI) binding onto studied adsorbents and changes in adsorbent surface morphology. The surface area of RHC and SDC was 1.12 and 1.16 m(2)g(-1), respectively.
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removal of a basic dye rhodamine b from aqueous solution by adsorption using Timber Industry waste
Chemical and Biochemical Engineering Quarterly, 2005Co-Authors: V K Garg, Renuka Gupta, T JunejaAbstract:Sorption of rhodamine-B from aqueous solutions on formaldehyde treated saw dust (SD) and sulphuric acid treated saw dust (SDC) of Indian Rosewood, a Timber Industry waste, was studied. Aqueous solutions of various mass concentrations (50 – 250 mg l –1 ) were shaken with certain amounts of adsorbent to determine the adsorption capacity of rhodamine-B on SD and SDC as well. Similar experiments were carried out with commercially available activated carbon (ACR) to compare the adsorption capacity of SD and SDC. The influence of several individual variables (initial adsorbate concentration, adsorbent mass, pH etc.) on the rate of uptake of dye by the adsorbents was determined using the batch mode. The adsorption capacity of the studied adsorbents was in the order ACR > SDC > SD. Initial pH had negligible effect on the adsorption capacity. Maximum dye was sequestered from the solution within 30 – 45 min after the beginning for every experiment. After that, the concentration of rhodamine-B in the liquid phase remained almost constant. The adsorption of rhodamine-B on SD and SDC followed a first order rate expression and fit the Lagergren equation well. The results showed that SDC and SD can be considered as potential adsorbents for rhodamine-B removal from dilute aqueous solutions.
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basic dye methylene blue removal from simulated wastewater by adsorption using indian rosewood sawdust a Timber Industry waste
Dyes and Pigments, 2004Co-Authors: V K Garg, Moirangthem Amita, Rakesh Kumar, Renuka GuptaAbstract:Abstract Dyes are usually present in trace quantities in the treated effluents of many industries. The effectiveness of adsorption for dye removal from wastewaters has made it an ideal alternative to other expensive treatment methods. This study investigates the potential use of Indian Rosewood ( Dalbergia sissoo ) sawdust, pretreated with formaldehyde and sulphuric acid, for the removal of methylene blue dye from simulated wastewater. The effects of different system variables, viz., adsorbent dosage, initial dye concentration, pH and contact time were studied. The results showed that as the amount of the adsorbent was increased, the percentage of dye removal increased accordingly. Higher adsorption percentages were observed at lower concentrations of methylene blue. Optimum pH value for dye adsorption was determined as 7.0 for both the adsorbents. Maximum dye was sequestered within 30 min after the beginning for every experiment. The adsorption of methylene blue followed a first order rate equation and fit the Lagergren equation well. Similar experiments were carried out with commercially available activated carbon to compare the results. Sulphuric acid treated sawdust or formaldehyde treated sawdust of Indian Rosewood can be attractive options for dye removal from dilute industrial effluents.
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adsorption of chromium from aqueous solution on treated sawdust
Bioresource Technology, 2004Co-Authors: V K Garg, Rakesh Kumar, Renuka Gupta, R K GuptaAbstract:The adsorption of Cr(VI) from aqueous solutions on formaldehyde treated sawdust (SD) and sulphuric acid treated sawdust carbon (SDC) of Indian Rosewood, a Timber Industry waste, was studied at varying Cr(VI) concentrations, adsorbent dose, pH and agitation time. Similar experiments were conducted with commercially available coconut based activated carbon to compare the results. The Cr(VI) adsorption efficiency on SDC was higher than SD. The adsorption followed first order rate expression and Lagergren equation. An initial pH of 3.0 was most favorable for Cr(VI) removal by both the adsorbents. Maximum Cr(VI) was sequestered from the solution within 60 min after the beginning for every experiment. It is proposed that SDC and SD can be potential adsorbents for Cr(VI) removal from dilute solutions.
Renuka Gupta - One of the best experts on this subject based on the ideXlab platform.
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removal of a basic dye rhodamine b from aqueous solution by adsorption using Timber Industry waste
Chemical and Biochemical Engineering Quarterly, 2005Co-Authors: V K Garg, Renuka Gupta, T JunejaAbstract:Sorption of rhodamine-B from aqueous solutions on formaldehyde treated saw dust (SD) and sulphuric acid treated saw dust (SDC) of Indian Rosewood, a Timber Industry waste, was studied. Aqueous solutions of various mass concentrations (50 – 250 mg l –1 ) were shaken with certain amounts of adsorbent to determine the adsorption capacity of rhodamine-B on SD and SDC as well. Similar experiments were carried out with commercially available activated carbon (ACR) to compare the adsorption capacity of SD and SDC. The influence of several individual variables (initial adsorbate concentration, adsorbent mass, pH etc.) on the rate of uptake of dye by the adsorbents was determined using the batch mode. The adsorption capacity of the studied adsorbents was in the order ACR > SDC > SD. Initial pH had negligible effect on the adsorption capacity. Maximum dye was sequestered from the solution within 30 – 45 min after the beginning for every experiment. After that, the concentration of rhodamine-B in the liquid phase remained almost constant. The adsorption of rhodamine-B on SD and SDC followed a first order rate expression and fit the Lagergren equation well. The results showed that SDC and SD can be considered as potential adsorbents for rhodamine-B removal from dilute aqueous solutions.
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basic dye methylene blue removal from simulated wastewater by adsorption using indian rosewood sawdust a Timber Industry waste
Dyes and Pigments, 2004Co-Authors: V K Garg, Moirangthem Amita, Rakesh Kumar, Renuka GuptaAbstract:Abstract Dyes are usually present in trace quantities in the treated effluents of many industries. The effectiveness of adsorption for dye removal from wastewaters has made it an ideal alternative to other expensive treatment methods. This study investigates the potential use of Indian Rosewood ( Dalbergia sissoo ) sawdust, pretreated with formaldehyde and sulphuric acid, for the removal of methylene blue dye from simulated wastewater. The effects of different system variables, viz., adsorbent dosage, initial dye concentration, pH and contact time were studied. The results showed that as the amount of the adsorbent was increased, the percentage of dye removal increased accordingly. Higher adsorption percentages were observed at lower concentrations of methylene blue. Optimum pH value for dye adsorption was determined as 7.0 for both the adsorbents. Maximum dye was sequestered within 30 min after the beginning for every experiment. The adsorption of methylene blue followed a first order rate equation and fit the Lagergren equation well. Similar experiments were carried out with commercially available activated carbon to compare the results. Sulphuric acid treated sawdust or formaldehyde treated sawdust of Indian Rosewood can be attractive options for dye removal from dilute industrial effluents.
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adsorption of chromium from aqueous solution on treated sawdust
Bioresource Technology, 2004Co-Authors: V K Garg, Rakesh Kumar, Renuka Gupta, R K GuptaAbstract:The adsorption of Cr(VI) from aqueous solutions on formaldehyde treated sawdust (SD) and sulphuric acid treated sawdust carbon (SDC) of Indian Rosewood, a Timber Industry waste, was studied at varying Cr(VI) concentrations, adsorbent dose, pH and agitation time. Similar experiments were conducted with commercially available coconut based activated carbon to compare the results. The Cr(VI) adsorption efficiency on SDC was higher than SD. The adsorption followed first order rate expression and Lagergren equation. An initial pH of 3.0 was most favorable for Cr(VI) removal by both the adsorbents. Maximum Cr(VI) was sequestered from the solution within 60 min after the beginning for every experiment. It is proposed that SDC and SD can be potential adsorbents for Cr(VI) removal from dilute solutions.
J W Whipple - One of the best experts on this subject based on the ideXlab platform.
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wisconsin Timber Industry an assessment of Timber product output and use 1994 forest service resource bulletin
1997Co-Authors: R L Hackett, J W WhippleAbstract:In this bulletin we discuss recent Wisconsin forest Industry trends and report the results of a detailed study of forest indsutry, industrial roundwood production, and associated primary mill wood and bark residue in Wisconsin in 1994. Such detailed information is necessary for intelligent planning and decisionmaking in wood procurement, forest resource management, and forest Industry development. Likewise, researchers need current forest Industry and idustrial roundwood information for planning project.
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wisconsin Timber Industry an assessment of Timber product output and use 1992 forest service resource bulletin
1995Co-Authors: R L Hackett, J W WhippleAbstract:In this bulletin we discuss recent Wisconsin forest Industry trends and report results of a detailed study of forest Industry, industrial roundwood production, and associated primary mill wood and bark residue in Wisconsin in 1992. Such detailed information is necessary for intelligent planning and decisionmaking in wood procurement, forest resource management, and forest Industry development. Likewise, researchers need current forest Industry and industrial roundwood information for planning projects. The last published report from a detailed study of all industrial roundwood output in Wisconsin was in 1990. Most comparisons in this report are with the 1990 study results.
Richard A. Dahlman - One of the best experts on this subject based on the ideXlab platform.
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minnesota Timber Industry an assessment of Timber product output and use 1992 forest service resource bulletin
1997Co-Authors: R L Hackett, Richard A. DahlmanAbstract:In this bulletin, the authors discuss recent Minnesota forest Industry trends and report the results of a detailed study of forest industrial roundwood production, and associated primary mill wood and bark residue in Minnesota in 1992. Such detailed information is necessary for intelligent planning and decisionmaking in wood procurement, forest resource management, and forest Industry development. Likewise, researchers need current forest Industry and industrial roundwood information for planning projects.
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minnesota Timber Industry an assessment of Timber product output and use 1990 forest service resource bulletin
1993Co-Authors: R L Hackett, Richard A. DahlmanAbstract:The bulletin discusses recent Michigan forest Industry trends and reports the results of a detailed study of forest Industry, industrial roundwood production, and associated primary mill wood and bark residue in Michigan in 1990. Such detailed information is necessary for intelligent planning and decisionmaking in wood procurement, forest resource management, and forest Industry development. Likewise, researchers need current forest Industry and industrial roundwood information for planning projects. All board foot data in the report have been converted to International 1/4 inch scale by applying a multiplier of 1.08 to all saw-log volume reported in Scribner Decimal C scale by sawmills, a multiplier of 1.04 to all veneer log volume reported in Scribner Decimal C scale by veneer mills, a multiplier of 1.38 to all saw-log volume reported in Doyle scale by sawmills, and a multiplier of 1.14 to all veneer log volume reported in Doyle scale by veneer mills.
