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Shukla, S. P.
- Intraspecific Variants in Tribulus terrestris Linn.
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Indian Forester, Vol 97, No 4 (1971), Pagination: 226-228Abstract
no abstract
- Efficacy of Chelating Agents in Phytoremediation of Cadmium Using Lemna minor (Linnaeus, 1753)
Abstract Views :155 |
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Authors
R. Aravind
1,
V. S. Bharti
1,
M. Rajkumar
1,
P. K. Pandey
1,
C. S. Purushothaman
2,
A. Vennila
3,
S. P. Shukla
1
Affiliations
1 Aquatic Environment and Health Management Division, Central Institute of Fisheries Education, Indian Council of Agricultural Research, Mumbai-400 061, Maharashtra, IN
2 Central Marine Fisheries Research Institute, Kochi, IN
3 Sugarcane Breeding Institute, Coimbatore, IN
1 Aquatic Environment and Health Management Division, Central Institute of Fisheries Education, Indian Council of Agricultural Research, Mumbai-400 061, Maharashtra, IN
2 Central Marine Fisheries Research Institute, Kochi, IN
3 Sugarcane Breeding Institute, Coimbatore, IN
Source
Nature Environment and Pollution Technology, Vol 15, No 2 (2016), Pagination: 509-514Abstract
Free floating aquatic macrophyte namely Lemna minor (Linnaeus, 1753) was exposed to different concentrations of cadmium (1, 5 and 10 mg/L) for a period of 30 days to evaluate its cadmium (Cd) accumulation capability in the presence of chelating agents such as EDTA and citric acid. The chelating agents were added at the rate of 1, 2 and 3 mg/L separately and the experiment was conducted in triplicate. The water and plant samples were collected at 15 days interval for the analysis of cadmium. There was a significant difference in the Cd uptake (P<0.05) by the plant in the presence of chelating agents when compared to the control. Bioconcentration factor (BCF) of cadmium by the plants showed an increasing trend in the presence of chelating agents. The percentage uptake of cadmium by L. minor in the presence of EDTA was significantly higher than that of citric acid (P<0.05). The overall results suggest that EDTA can be effectively used to enhance phytoremediation efficiency of cadmium by L. minor in the contaminated water.Keywords
Cadmium, Chelating Agents, Bioconcentration Factor, Lemna minor.Full Text
References
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- Wind Power:Issues Related with Microgrid
Abstract Views :180 |
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Authors
Affiliations
1 Bhilai Institute of Technology, Durg, IN
1 Bhilai Institute of Technology, Durg, IN
Source
Research Journal of Engineering and Technology, Vol 6, No 2 (2015), Pagination: 250-257Abstract
During disturbances, the distributed generation and corresponding loads can separate from the distribution system to isolate the Microgrid's load from the disturbance (providing UPS services) without harming the transmission grid's integrity. This ability to island generation and loads together has a potential to provide a higher local reliability than that provided by the power system as a whole. This paper aims to cover various trends and issues associated with wind power generation and its integration with current installed capacity and grid complexities.Keywords
Microgrid, Distributed Generation, Power Vs. Frequency Droop, Inverters.- Wind Power:Recent Trends and Issues
Abstract Views :170 |
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Authors
Affiliations
1 Raipur Institute of Technology, Raipur, IN
2 Bhilai Institute of Technology, Durg, IN
1 Raipur Institute of Technology, Raipur, IN
2 Bhilai Institute of Technology, Durg, IN
Source
Research Journal of Engineering and Technology, Vol 2, No 4 (2011), Pagination: 231-235Abstract
The review covers the various trends and issues associated with wind power generation and its integration with current installed capacity and grid complexities.- Efficacy of an Integrated System Incorporated with Eichhornia crassipes in Phytoremediation of Calcium from Inland Saline Water
Abstract Views :151 |
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Authors
K. R. Om Pravesh
1,
V. S. Bharti
1,
A. Vennila
2,
S. P. Shukla
1,
V. Harikrishna
3,
Y. Gladston
1,
R. Aravind
4
Affiliations
1 Aquatic Environment and Health Management Division, Central Institute of Fisheries Education, Indian Council of Agricultural Research, Mumbai-400 061, Maharashtra, IN
2 Sugarcane Breeding Institute, Coimbatore, IN
3 Central Institute of Fisheries Education, Rohtak, Haryana, IN
4 Central Institute of Brackishwater Aquaculture, Chennai, IN
1 Aquatic Environment and Health Management Division, Central Institute of Fisheries Education, Indian Council of Agricultural Research, Mumbai-400 061, Maharashtra, IN
2 Sugarcane Breeding Institute, Coimbatore, IN
3 Central Institute of Fisheries Education, Rohtak, Haryana, IN
4 Central Institute of Brackishwater Aquaculture, Chennai, IN
Source
Nature Environment and Pollution Technology, Vol 16, No 3 (2017), Pagination: 687-694Abstract
In the present study, free floating plant Eichhornia crassipes was used for the phytoremediation of calcium from inland saline water by using water having salinity of 2.5, 5 and 7.5 ppt for one week each. Water samples were collected on 0th, 4th and 6th day and plant sample was at end of the experiment for calcium estimation and for other water quality parameters i.e., total hardness (TH), total alkalinity (TA), dissolved oxygen (DO), carbon dioxide (CO2), potassium (K) and pH on 0th and 6th day of the experiment. There was a significant difference in the calcium uptake (P<0.05) by the plants compared to the 0th day samples. The higher percentage removal of calcium was noted at 2.5 ppt salinity (47.7%) followed by 5 and 7.5 ppt salinity (36.04 and 23.13%) respectively. There was significant improvement in the water quality characteristics. In first cycle at 2.5 ppt salinity, the initial concentration of TH, TA, K and CO2 was 833.33, 166.66, 2.7 and 2.6 mg.L-¹ which decreased to 813.33, 144.66, 1.7 and 0 mg.L-¹ respectively, at the end of experiment. Similarly, there was a decrease in the concentration of pH noted from 8.5 to 8.2. An increase was obtained in the concentration of DO i.e., from 6.3 to 7.1 mg.L-¹. The trend of decreasing was observed for other cycles also. The used integrated system (sand filter + charcoal filter + coconut coir bed filter incorporated with E. crassipes) was efficient for calcium removal and higher percentage removal was obtained at 2.5 ppt salinity followed by 5 and 7.7 ppt. At 2.5 ppt, higher percentage removal was obtained in second cycle i.e. 47.7% compared to first and third cycle i.e. 45 and 46.22% respectively. Similar trend of percentage removal was obtained at 5 and 7.5 ppt i.e., 36.04 and 23.13% respectively than other two cycles. The overall results suggest that finding of this study will serve as a baseline for treatment of inland saline water to make it useful for various agricultural and aquaculture applications.Keywords
Calcium, Inland Saline Water, Phytoremediation, Eichhornia crassipes.Full Text
- Adsorption of Arsenic using Low Cost Adsorbents:Guava Leaf Biomass, Mango Bark and Bagasse
Abstract Views :3189 |
PDF Views:73
Authors
Affiliations
1 Department of Civil Engineering, Indian Institute of Technology (BHU), Varanasi 221 005, IN
2 Department of Civil Engineering, Institute of Engineering and Technology, Lucknow 226 021, IN
1 Department of Civil Engineering, Indian Institute of Technology (BHU), Varanasi 221 005, IN
2 Department of Civil Engineering, Institute of Engineering and Technology, Lucknow 226 021, IN
Source
Current Science, Vol 117, No 4 (2019), Pagination: 649-661Abstract
Adsorbents prepared from inexpensive materials of guava leaf biomass, mango bark and bagasse were studied for As(III) removal from the aqueous solution. The effects of pH, contact time, initial As(III) concentration and adsorbent dosage on the adsorption of As(III) were studied using batch experiments. Adsorption process was also verified with Langmuir, Freundlich, Temkin and Redlich–Peterson models. Langmuir isotherm fitted best in the experimental data. Application of Langmuir isotherm to the system yielded the maximum capacities of 1.35 mg g–1, 1.25 mg g–1 and 1.05 mg g–1 for bagasse, mango bark and guava leaf biomass respectively, in the range of As(III) concentration as 10–140 mg l–1. The dimensionless equilibrium parameter, RL, signifies favourable adsorption of As(III) on all adsorbents and was observed to be in the range of 0.029–0.294, 0.021– 0.235 and 0.021–0.234, for bagasse, mango bark and guava leaf biomass respectively (0 < RL < 1). The adsorption process was observed to follow pseudosecond- order kinetic model.Keywords
Adsorption, Arsenite Ion-As(III), Isotherms, Kinetics, Low-Cost Adsorbents.Full Text
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