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131.
Kaustubha Mohanty Debabrata Das Manindra Nath Biswas 《Journal of environmental science and health. Part. B》2013,48(5):452-463
Arachis hypogaea hulls, an agricultural waste, were used to prepare activated carbon by chemical activation with zinc chloride under four different activation atmospheres. The most important parameter in chemical activation was found to be the chemical ratio (activating agent/precursor). Carbonization temperature and time are the other two important variables, which had significant effect on the pore structure of carbon. The maximum Brunquer-Emmett-Teller (BET) surface area and micropore volume of the activated carbon was found to be 418 m2/g and 0.28 cm3/g, respectively. The activated carbon developed shows substantial capability to adsorb phenol from aqueous solutions. The kinetic data were fitted to the models of intraparticle diffusion, pseudo-second-order, and Lagergren, and followed more closely the pseudo-second-order chemisorption model. The isotherm equilibrium data were well fitted by the Langmuir and Freundlich models. Solution pH has significant effect on adsorption and the maximum uptake of phenol was reported at pH 3.5. 相似文献
132.
Mishra Jyotirmoy Nanda Bharadwaj Patro Sanjaya K. Das Shaswat K. Mustakim Syed M. 《Journal of Material Cycles and Waste Management》2022,24(3):1095-1108
Journal of Material Cycles and Waste Management - Earlier studies indicated that the reactive MgO reduces shrinkage crack and porosity, and accelerates the hydration and strength development.... 相似文献
133.
Verma Madan L. Sukriti Dhanya B. S. Saini Raj Das Anamika Varma Rajender S. 《Environmental Chemistry Letters》2022,20(3):2189-2212
Environmental Chemistry Letters - Biosensors are gaining interest in biomedical and environmental sciences. In particular, graphene-based biosensors are promising due to the unique properties of... 相似文献
134.
Al-Harrasi Ahmed Behl Tapan Upadhyay Tanuj Chigurupati Sridevi Bhatt Shvetank Sehgal Aayush Bhatia Saurabh Singh Sukhbir Sharma Neelam Vijayabalan Shantini Palanimuthu Vasanth Raj Das Suprava Kaur Rajwinder Aleya Lotfi Bungau Simona 《Environmental science and pollution research international》2022,29(28):42404-42432
Environmental Science and Pollution Research - The human coronavirus disease (COVID-19) pandemic is caused by a novel coronavirus; the Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV-2).... 相似文献
135.
Mukherjee Tuhin Behl Tapan Sharma Sanchay Sehgal Aayush Singh Sukhbir Sharma Neelam Mathew Bijo Kaur Jasleen Kaur Ratandeep Das Mayukh Aleya Lotfi Bungau Simona 《Environmental science and pollution research international》2022,29(6):8109-8125
Environmental Science and Pollution Research - Vasoactive intestinal peptide (VIP) is a neuropeptide that is produced by the lymphoid cells and plays a major role in immunological functions for... 相似文献
136.
Shahriar M. Wahid Mukand S. Babel Ashim Das Gupta Jayant K. Routray Roberto S. Clemente 《Natural resources forum》2008,32(4):290-304
In this contemporary interpretation of the widespread land degradation problem in Southeast Asia, it is hypothesized that spatial interplay of environmental and socioeconomic predictors determines the occurrence of land degradation. Village surveys, remote sensing and spatial auto‐logistic modelling of the relationship between degradation and land use dynamics in Lam Phra Phloeng watershed of Thailand enabled 80.2% of land to be classified correctly in terms of the presence or absence of erosion and explained 53.2% of the total variation. Cultivation and dependence on agriculture for livelihood positively and significantly affect degradation. Lack of access to institutional credit and land titles significantly increased the probability of occurrence of degradation. On the other hand, education and social cohesion are negatively associated with the occurrence of degradation. The Relative Operating Characteristic (ROC) curve was used to measures the performance of the model. The calculated area under the curve (0.879) suggests that significant predictor variables in the model can be confidently used to forecast the likelihood of occurrence of degradation and thus to identify priority areas for intervention. Policies to reduce land degradation should include measures to reduce pressure on the land, including alternative income sources. Policies could mobilize capital to invest in encouraging nature‐based tourism and other off‐farm income options. 相似文献
137.
Das Atanu Kumar Islam Md. Nazrul Billah Md. Morsaline Sarker Asim 《Environmental science and pollution research international》2021,28(23):28993-29008
Environmental Science and Pollution Research - Municipal solid waste (MSW) represents an inevitable by-product of human activity and a major crisis for communities across the globe. In recent... 相似文献
138.
Bhattacharya Sourav Das Arijit Krishnan Kavitha Patil Nischita A. Sadique Jaffar 《Environmental science and pollution research international》2021,28(45):64030-64038
Environmental Science and Pollution Research - Phenol and its derivatives behave as mutagens, teratogens and carcinogens inducing adverse physiological effects and are considered environmental... 相似文献
139.
S. S. Baral S. N. Das P. Rath G. Roy Chaudhury Y. V. Swamy 《Chemistry and Ecology》2007,23(2):105-117
Biosorption studies of Cr(VI) were carried out using waste weed, Salvinia cucullata. Various adsorption parameters were studied, such as agitation speed, contact time, pH, particle size, and concentrations of adsorbent and adsorbate. The equilibrium was achieved in 12 h. A lower pH favoured adsorption of Cr(VI). The kinetics followed pseudo-second-order rate equations. The adsorption isotherm obeyed both the Langmuir and Freundlich models. The calculated activation energy (1.1 kJ mol-1) suggested that the adsorption followed a diffusion-controlled mechanism. Various thermodynamic parameters such as Δ G°, Δ H°, and Δ S° were also calculated. The positive values of enthalpy indicated the endothermic nature of the reaction, and Δ S° showed the increasing randomness at the solid liquid interface of Cr(VI) on the adsorbent, which revealed the ease of adsorption reaction. These thermo-dynamic parameters showed the spontaneity of the reaction. The maximum adsorption of uptake (232 mg g-1) compared well with reported values of similar adsorbents. The rate-determining step was observed to follow an intra-particle diffusion model. 相似文献
140.
Roy Partha Bhat Vinay S. Saha Sumana Sengupta Dipanjan Das Suvadra Datta Sriparna Hegde Gurumurthy 《Environmental science and pollution research international》2021,28(11):13552-13561
Environmental Science and Pollution Research - Porous carbon nanospheres were synthesized from agro-waste garlic peels by a one-pot facile and easy to scale-up pyrolysis method. Surface morphology... 相似文献