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81.
Kolangare Irfana Moideen Isloor Arun Mohan Karim Zulhairun Abdul Kulal Ananda Ismail Ahmad Fauzi Inamuddin Asiri Abdullah Mohamed 《Environmental Chemistry Letters》2019,17(1):581-587
Environmental Chemistry Letters - The removal of toxic dyes from the wastewater and industrial effluents is a major environmental challenge. Various techniques have been employed for the removal of... 相似文献
82.
Manikandan Dinesh Babu Arumugam Manikandan Veeran Srinivasan Sridhar Arun Krishnasamy Sekar Rajkumar Perumalsamy Balaji Ramasamy Thirumurugan 《Environmental science and pollution research international》2021,28(26):33927-33941
Environmental Science and Pollution Research - Nanotechnology tends to be a swiftly growing field of research that actively influences and inhibits the growth of bacteria/cancer. Noble metal... 相似文献
83.
Soorangkattan Saravanan Nalluchamy Kamala Dhasan Arumugam Sudha Sivagnanam Chandrasekaran Thulasinathan Boobalan Ramu Satheesh Murugan Alagarsamy Arun Muthuramalingam Jothi Basu 《Environmental science and pollution research international》2021,28(26):33942-33956
Environmental Science and Pollution Research - Human utilization of natural resources acts as a main driver in altering the ecosystem service and functions. Apart from indirect influence, these... 相似文献
84.
Soorangkattan Saravanan Nalluchamy Kamala Dhasan Nagarajan Arumugam Thulasinathan Boobalan Jayabalan Maruthupandian Muthuramalingam Jothi Basu Alagarsamy Arun Krishnasamy Muthuchelian 《Environmental science and pollution research international》2021,28(26):33958-33966
Environmental Science and Pollution Research - Elaeocarpus venustus is an endemic as well as endangered tree species habitated in the wet evergreen forests of Southern Western Ghats (SWG), India.... 相似文献
85.
Sathyamurthy Ravishankar Kabeel Abd Elnaby Chamkha Ali Kumar Hemanth Arun Venkateswaran Hariprasath Manokar Athikesavan Muthu Bharathwaaj Ramani Vasanthaseelan Sathiyaseelan 《Environmental science and pollution research international》2022,29(5):6612-6621
Environmental Science and Pollution Research - One of the major challenges faced by human society is the freshwater crisis and shortage of conventional energy. Solar still is considered as one of... 相似文献
86.
Parash Kalita Ajay P. Malshe S. Arun Kumar V.G. Yoganath T. Gurumurthy 《Journal of Manufacturing Processes》2012,14(2):160-166
An investigation on minimum quantity lubrication (MQL) grinding was carried out with the scope of documenting the process efficiency of oil-based nanolubricants. The nanolubricants were composed of MoS2 nanoparticles (<100 nm) over coated with organic agents, dispersed in two different base oils—mineral oil (paraffin) and vegetable oil (soybean). Surface grinding tests were carried out on cast iron and EN 24 steel under different lubrication conditions—MQL using nanolubricants (varying compositional chemistry and concentration of nanoparticles), pure base oils (without nanoparticles) and base oils containing MoS2 microparticles (3–5 μm), and flood grinding using water-based coolant. Specific energy, friction coefficient in grinding and G-ratio were used as measurands for determining the process efficiency. Results show that MQL grinding with nanolubricants increases the process efficiency by reducing energy consumption, frictional losses at the wheel–workpiece interface and tool wear. The process efficiency is also found to increase with increasing nanoparticle concentration. Soybean and paraffin based-nanolubricant performed best for steel and cast iron, respectively, showing a possible functional relationship between the compositional chemistry of nanolubricant and the workpiece material, which will be the goal of future work. 相似文献
87.
Michael W. Suplee Arun Varghese Joshua Cleland 《Journal of the American Water Resources Association》2007,43(2):453-472
Abstract: The U.S. Environmental Protection Agency recommends two statistical methods to States and Tribes for developing nutrient criteria. One establishes a criterion as the 75th percentile of a reference‐population frequency distribution, the other uses the 25th percentile of a general‐population distribution; the U.S. Environmental Protection Agency suggests either method results in similar criteria. To evaluate each method, the Montana Department of Environmental Quality (MT DEQ) assembled data from STORET and other sources to create a nutrient general population. MT DEQ’s reference‐stream project provided reference population data. Data were partitioned by ecoregions, and by seasons (winter, runoff, and growing) defined for the project. For each ecoregion and season, nutrient concentrations at the 75th percentile of the reference population were matched to their corresponding concentrations in the general population. Additionally, nutrient concentrations from five regional scientific studies were matched to their corresponding reference population concentrations; each study linked nutrients to impacts on water uses. Reference‐to‐general population matches were highly variable between ecoregions, as nutrients at the 75th percentile of reference corresponded to percentiles ranging from the 4th to the 97th of the general population. In contrast, case studies‐to‐reference matches were more consistent, matching on average to the 86th percentile of reference, with a coefficient of variation of 13%. 相似文献
88.
/ The travel cost method was used to estimate the economic value of seven major power boating resources in Pennsylvania. A significant relationship between number of visitor trips and cost per visitor trip existed for five of the seven water bodies. The annual total value for those five resources was $396 million, which was 2.5 times greater than the total out-of-pocket expenditures of approximately $157 million visitors spent to visit them. Research results can help resource managers plan and craft programs and policies that are founded on economic values of the natural resources involved. 相似文献
89.
Arun S. Malik Bruce A. Larson Marc Ribaudo 《Journal of the American Water Resources Association》1994,30(3):471-480
ABSTRACT. The limited success of command-and-control policies for reducing nonpoint source (NPS) water pollution mandated under the Federal Water Pollution Control Act (FWPCA) has prompted increased interest in economic incentive policies as an alternative control mechanism. A variety of measures have been proposed ranging from fairly minor modifications of existing policies to substantial revisions including watershed-wide polices that rely on economic incentives. While greater use of economic incentive policies, such as environmental bonds and point/nonpoint source trading is being advocated in the reauthorization of the CWA, the expected effects of individual proposals will be modest. The characteristics of NPS pollution, namely uncertainty and asymmetrical information, underscores that there is no single, ideal policy instrument for controlling the many types of agricultural NPS water pollution. Some of the usual incentive-based policies, such as effluent taxes, are not well suited to the task. Individual incentive policies proposed for the reauthorized CWA, such as pollution trading or deposit/refund systems, are not broadly applicable for heterogeneous pollution situations. Economic incentive policies may be appropriate in some cases, and command-and-control policies will be preferable in others and may in fact complement incentive policies. 相似文献
90.
Raghavendra S. Hebbar Arun M. Isloor Inamuddin Abdullah M. Asiri 《Environmental Chemistry Letters》2017,15(4):643-671
The development of membrane-based desalination and water purification technologies offers new alternatives to meet the global freshwater demand. Rapid advancement in carbon nanotube-based and graphene-based nanomaterials has drawn the attention of scientific investigators on various desalination technologies. These nanomaterials indeed offer advantageous structure, size, shape, porosity and mass transport behavior for membrane separation process. This article reviews theoretical and experimental investigations of carbon nanotube- and graphene-based composite materials for desalination. Special attention is given to the simulation of molecular transport through these materials. Further, recent advances in the application of functionalization of carbon nanotube- and graphene-based materials for salt rejection and hydraulic permeation properties are discussed. 相似文献