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Tyagi, D. K.
- An Approach to the Management of Grasslands in Great Indian Bustard Areas
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Indian Forester, Vol 120, No 10 (1994), Pagination: 908-914Abstract
The Great Indian Bustard (Ardeolis nigriceps) (Vigors) is an endemic species to the Indian Sub-continent. In Maharashtra it confines itself mainly to the area of sholapur and Ahmednagar districts. The Sehima-Dichanthium type of grassland of the area requires constant management for ecological reasons and for the conservation of this rare bird along with the conservation of other biodiversity of the area. The management of grassland wi1l reduce the man-wildlife conflict also to certain extent. The grassland of Great Indian Bustard area can be managed for betterment with the right selection of locally acclimatized suitable grass and fodder tree species and with the right selection of management practice inputs.
- Equilibrium and Kinetic Studies on Adsorption of Congo-Red Dye from Aqueous Solution onto Rice Husk Carbon
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1 Department of Chemistry, D.A.V. Post Graduate College, Dehradun-248 001, Uttrakhand, IN
2 Department of Chemistry, C. C. S. Haryana Agricultural University, Hisar-125 001, Haryana, IN
1 Department of Chemistry, D.A.V. Post Graduate College, Dehradun-248 001, Uttrakhand, IN
2 Department of Chemistry, C. C. S. Haryana Agricultural University, Hisar-125 001, Haryana, IN
Source
Nature Environment and Pollution Technology, Vol 10, No 4 (2011), Pagination: 551-558Abstract
Equilibrium and kinetic data for the adsorption of Congo-red dye from aqueous solution onto activated rice husk carbon have been reported. The effects of dye initial concentration, adsorbent-adsorbate contact time, temperature, adsorbent's amount and particle size on the percent adsorption of the dye on the adsorbent have been investigated. Kinetics of adsorption of Congo-red onto the adsorbent in aqueous solution was monitored spectrophotometrically. At the specified dye initial concentration, percent adsorption of dye increases with increase in temperature as well as the adsorbate-adsorbent contact period. However, at the given temperature, % adsorption of Congo-red decreases with the increase in dye initial concentration. The observed adsorption data were analysed in light of Langmuir and Freundlich adsorption isotherms. Dye adsorption rate constant (kad) follows the first order kinetics. Activation energy (Ea) of adsorption, intra-particle diffusion rate constant and thermodynamic parameters of Congo-red adsorption on the rice-husk carbon have been evaluated and interpreted.Keywords
Congo-Red Dye, Rice Husk Carbon, Equilibrium, Kinetics of Adsorption.Full Text
- An Overview of Effluent Treatment for the Removal of Pollutant Dyes
Abstract Views :217 |
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Authors
Affiliations
1 Department of Chemistry, D.A.V.P.G. College, Dehradun- 248001, Uttrakhand, IN
2 Chemistry Department, CCS Haryana Agricultural University, Hisar-125001, IN
1 Department of Chemistry, D.A.V.P.G. College, Dehradun- 248001, Uttrakhand, IN
2 Chemistry Department, CCS Haryana Agricultural University, Hisar-125001, IN
Source
Asian Journal of Research in Chemistry, Vol 5, No 1 (2012), Pagination: 1-7Abstract
Wastewater effluents from textile, paper, tannery and beverage industries are contaminated with variety of pollutants including dyes. Dyes are skin irritant, carcinogenic and can cause allergic dermatitis and mutation. Environmental legislations are now becoming more stringent to control the release of dyes into the environment. Biological treatment of effluent requires a large land area and is constrained by toxicity of some chemicals, and less flexibility in design and operation. Chemical treatments for the removal of dyes from the polluted effluents are not cost effective. Photocatalytic dye degradation techniques suffer from their low efficiency. Adsorption method has been found to be efficient, economical, renewable and eco-friendly solution in treating effluents contaminated with dyes. An overview of the treatments of dye contaminated effluents by biological, chemical and physical methods have been presented.Keywords
Adsorption, Biological, Chemical, Dyes, Industrial Effluents, Pollutants.- Surface and Thermodynamic Properties of Cetyl Pyridinium Chloride (CPC) in Aqueous Sodium Chloride Solutions at Various Temperatures
Abstract Views :178 |
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Authors
Affiliations
1 Department of Chemistry, Government College, Hisar, 125001, IN
2 Jain P.G. College, Mujaffar Nagar (U.P.), 251001, IN
3 Department of Chemistry, D A V College, Dehradun, IN
4 Department of Chemistry, CCS Haryana Agricultural University, Hisar 125 004, IN
1 Department of Chemistry, Government College, Hisar, 125001, IN
2 Jain P.G. College, Mujaffar Nagar (U.P.), 251001, IN
3 Department of Chemistry, D A V College, Dehradun, IN
4 Department of Chemistry, CCS Haryana Agricultural University, Hisar 125 004, IN
Source
Asian Journal of Research in Chemistry, Vol 5, No 1 (2012), Pagination: 34-37Abstract
Critical micelle concentration (CMC), maximum surface excess concentration (Γmax), minimum area per molecule (Amin) at air-liquid interface of cetyl pyridinium chloride (CPC) in aqueous sodium chloride solutions have been, tensiometrically, determined at 288.15, 293.15 and 298.15 K. Thermodynamic parameters of micellization as well as of adsorption at air-liquid interface have been evaluated. Whereas micellization process is exothermic, adsorption of surfactant at the air-liquid interface is endothermic in nature. The latter process however becomes feasible owing to the predominant entropy gain.
Keywords
Critical Micelle Concentration, Tensiometrically, Micellization, Adsorption, Entropy.- The Kinetic and Equilibrium Studies on Adsorption of Rhodamine-B Dye From Aqueous Solution onto Rice Husk Carbon
Abstract Views :206 |
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Authors
Affiliations
1 Department of Chemistry, D.A.V.P.G. College, Dehradun- 248001, Uttrakhand, IN
2 Chemistry Department, CCS Haryana Agricultural University, Hisar-125001, IN
1 Department of Chemistry, D.A.V.P.G. College, Dehradun- 248001, Uttrakhand, IN
2 Chemistry Department, CCS Haryana Agricultural University, Hisar-125001, IN
Source
Asian Journal of Research in Chemistry, Vol 4, No 6 (2011), Pagination: 917-924Abstract
Kinetic and equilibrium studies for the adsorption of Rhodamine-B dye from aqueous solution onto activated rice husk carbon have been reported. The effect of parameters such as: contact time, dye initial concentration, temperature, adsorbent's amount and particle size on the color removing efficiency of the activated rice husk carbon has been investigated. Kinetics of adsorption of dye at adsorbent in aqueous solution was monitored spectrophotometrically. At the given initial dye concentration, its percent adsorption increases with increase in temperature as well as the adsorbate-adsorbent contact period and the equilibrium was established after 120 minutes. However, at the given temperature, % adsorption of the dye decreases with the increase in its initial concentration. The curves representing adsorption isotherms are single and continuous leading to saturation, suggesting monolayer coverage of the dye on the adsorbent surface. The observed adsorption data was analysed in the light of Langmuir and Freundlich adsorption isotherms. Dye adsorption rate constant (kad) follows the first order kinetics. Activation energy (Ea), intra-particle diffusion rate constant and thermodynamic quantities of dye adsorption on the rice-husk carbon have been evaluated and interpreted.Keywords
Equilibrium, Rhodamine-B, Adsorption, Activation Energy, Thermodynamic.- Synthesis and Spectral Studies of Ester Prodrugs of Ibuprofen
Abstract Views :156 |
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Authors
Affiliations
1 Department of Chemistry, DAV (P.G.) College, Dehradun-248001, IN
1 Department of Chemistry, DAV (P.G.) College, Dehradun-248001, IN
Source
Asian Journal of Research in Chemistry, Vol 3, No 1 (2010), Pagination: 145-147Abstract
Some ester prodrugs of ibuprofen have been synthesized via acid alcohol coupling of Ibuprofen and alcohol derivatives in dichloromethane medium. These newly synthesized prodrugs were analyzed by NMR and IR spectroscopy.Keywords
Prodrugs and NSAID.- A Case of Major Bone Loss of Tibia Treated by Tibialisation of Fibula
Abstract Views :303 |
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Authors
Affiliations
1 MGIMS, Sewagram, Maharashtra, IN
1 MGIMS, Sewagram, Maharashtra, IN
Source
The Indian Practitioner, Vol 72, No 1 (2019), Pagination: 25-28Abstract
Compound injuries with bone loss have a propensity to develop infective non-union. If major bone loss occures then choices of treatment left are vascularized bone grafting, custom mega prosthesis, Ilizarov fixation, and Huntington procedure.
Here we report a case of 3-year-old child who suffered compound grade III injury to lower leg, which developed into infective non-union over a period of 5 years, for which she was treated, and eventually tibialisation of the fibula was performed.
Keywords
Osteomyelitis, Non-Union, TibialisationReferences
- Keating, J.F., Simpson, A.H.R.W. and Robinson, C.M. (2005) The Management of Fractures with Bone Loss. The Journal of Bone & Joint Surgery, 87B, 142-150.
- Kirsner RS, Spencer J, Falanga V, Garland LE, Kerdel FA. Squamous cell carcinoma arising in osteomyelitis and chronic wounds. Treatment with Mohs micrographic surgery vs. amputation. Dermatol Surg 1996;22:1015-8.
- Spiegel DA, Penny JN. Chronic osteomyelitis in children. Techniques in Orthopaedics. 2005 Jun 1;20(2):142-52.
- Huntington TW. Case of bone transference: Use of a segment of fibula to supply a defect in the tibia. Ann Surg. 1905;41:249–251.
- Catagni, M.A., Camagni, M., Combi, A. and Ottaviani, G. Medial Fibula Transport with Ilizarov Frame to Treat Massive Tibial Bone Loss. Clinical Orthopaedics and Related Research, 448, 208-216.
- Weiland AJ, Daniel RK. Microvascular anastomoses for bone grafts in the treatment of massive defects in bone. J Bone Joint Surg Am 1979;61:98-104.
- Al-Zahrani S, Harding MG, Kremli M, Khan FA, Ikram A, Takroni T. Free fibular graft still has a place in the treatment of bone defects. Injury 1993;24:551-4.
- De Boer HH, Wood MB, Hermans J. Reconsruction of large skeletal defects by vascularized fibular transfer. Factors that influence the outcome of union in 62 cases. Int Orthop 1990;14:121-8.
- Kassab M, Samaha C, Saillant G. Ipsilateral fibular transposition in tibial nonunion using huntington procedure: A 12-year followup study. Injury 2003;34:770-5.
- Chacha PB, Ahmed M, Daruwalla JS. Vascular pedicle graft of the ipsilateral fibula for nonunion of the tibia with a large defect. An experimental and clinical study. J Bone Joint Surg Br 1981;63:244-53
- Taylor GI, Miller GD, Ham FJ. The free vascularized bone graft. A clinical extension of microvascular techniques. Plast Reconstr Surg 1975;55:533-44.
- Agiza AR. Treatment of tibial osteomyelitic defects and infected pseudarthroses by the huntington fibular transference operation. J Bone Joint Surg Am 1981;63:814-9.