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Quarterly published in print and online "Inventi Impact: Water & Environment" publishes high quality unpublished as well as high impact pre-published research and reviews catering to the needs of researchers and professionals. This multidisciplinary journal deals with all the aspects related to water and environmental management with special emphasis on water cycle and environmental conservation. Subject areas included are land use and groundwater use; water conservation and integrated water management; flood alleviation, flood estimation and floodplain modelling; sewage sludge digestion and urban sewerage; pollutant build-up and run-off; cryptosporidium risk assessment; bacteriological and chemical quality of drinking water; risk assessment for landfills; river restoration and ecohydrology, etc.
Accurate and reliable groundwater level forecasting\nmodels can help ensure the sustainable use of a\nwatershedÃ¢â?¬â?¢s aquifers for urban and rural water supply. In\nthis paper, three time series analysis methods, HoltÃ¢â?¬â??Winters\n(HW), integrated time series (ITS), and seasonal autoregressive\nintegrated moving average (SARIMA), are\nexplored to simulate the groundwater level in a coastal\naquifer, China. The monthly groundwater table depth data\ncollected in a long time series from 2000 to 2011 are\nsimulated and compared with those three time series\nmodels. The error criteria are estimated using coefficient of\ndetermination (R2), NashÃ¢â?¬â??Sutcliffe model efficiency coefficient\n(E), and root-mean-squared error. The results indicate\nthat three models are all accurate in reproducing the\nhistorical time series of groundwater levels. The comparisons\nof three models show that HW model is more accurate\nin predicting the groundwater levels than SARIMA\nand ITS models. It is recommended that additional studies\nexplore this proposed method, which can be used in turn to\nfacilitate the development and implementation of more\neffective and sustainable groundwater management\nstrategies....
Ground-water is an essential and vital component of our life support system. The ground water quality of Kodaikanal\r\ntaluk, Tamil Nadu for the period of pre monsoon season in the year of 2012 has been studied to evaluate the suitability of\r\nground water for domestic uses. Totally 17 Groundwater samples were collected from open well and bore well and analyzed for\r\nvarious physical (pH, EC, TDS) and chemical parameters (Na, K, Ca, Mg, HCO3, CO3, SO4 and Cl). It is observed that the quality of\r\ngroundwater is suitable for domestic use in most of the location with respect to World Health Organization (WHO 1984) and\r\nsome of the samples are not suitable for drinking purposes. To understand the water quality, Arc GIS software was used to\r\nprepare a spatial distribution map and identify the suitable and unsuitable zones. Finally, overlay the all spatial maps and find\r\nout the unsuitable zones for drinking purposes....
Levafix yellow CA (LY) is a reactive azo dye widely used in textile industries and its removal from wastewater is difficult due to complex structural properties. This paper deals with a hybrid electrochemical degradation-chemical adsorption approach for the removal of LY from aqueous solution. The dye solution containing sodium chloride (NaCl) electrolyte was first electrolyzed using graphite electrodes, followed by adsorption onto magnesium oxide (MgO) or zinc oxide (ZnO) nanoparticles. MgO was found to be a better adsorbent than ZnO. The progress of dye removal was monitored by CV, UV-VIS spectrophotometry, total organic carbon (TOC) measurements and also by Mass spectral analysis. Almost 100% decolourization was achieved by electrolysis while about 90.3 % TOC removal was achieved through adsorption with MgO nanoparticles....
In this paper, a linear programming model has been developed for determining the optimal water usage for residential purposes. A case of Shri Mata Vaishno Devi University (SMVDU) has been discussed. The model presented in this paper is very simple and easy to use. The water usage in residential area consisting of faculty quarters and students’ hostels has been studied. The necessary data have been supplied to the model and the minimum water requirements have been computed for different faculty quarters as well as hostels. The model has been solved using TORA software. This study is very useful in deciding the optimal water requirements/distribution in the different units of the university....
In order to scientifically guide the water-preserved mining of the coal seam floor and make up for the shortcomings in the
conventional evaluation of water blocking performance of the coal seam floor, according to the system resilience theory, the
difference between the vulnerability and resilience of the coal seam floor is analyzed, and three elements and nine indicators
for evaluating water resistance toughness of the coal seam floor are determined. In the evaluation process, first of all, the
maximum difference normalization method is used to conduct a dimensionless analysis of quantifiable indicators to determine
the importance of the corresponding indicators, and the AHP software yaahp10.1 is used to determine the weight vector of
each indicator. Secondly, the single-factor membership degree is determined according to the single-factor resilience grade
classification criterion and membership function and finally combined with the weight vector for fuzzy synthesis calculation
and comprehensive evaluation. The model is applied to a specific project. Research has shown that in the water hazard threat
area of No. 10 coal seam floor in Jiegou Coal Mine, Anhui Province, the performance of system vulnerability elements is weak,
the performance of system recoverability elements is better, and the performance of system adaptability elements is extremely
poor. From the perspective of the whole life cycle, determining the treatment target area, optimizing the rock formation
modification and repairing materials, and enhancing the water resources carrying capacity can improve the water resistance
toughness of the coal seam floor. Related conclusions verify the effectiveness of the evaluation model. Furthermore, an
optimized strategy for coal seam floor water retention mining is proposed: the technology system of water-preserved mining
for coal seam floor contains 3 stages and 3 detections, which provides a scientific basis for the in situ protection of highpressure
limestone water from coal seam floor....
Strengthening the transmission uniformity of remedial amendments in heterogeneous porous
media is important for improving in situ groundwater remediation efficiency. This study developed
a characterization method to represent the improvement of transmission uniformity in heterogeneous
media using the degree of difference in hydraulic conductivity of porous media between xanthan solution
and pure water, which was defined as the transmission uniformity control coefficient U. Research results
showed thatU of medium sand/fine sand (2.44) was the most ideal among the three medium combinations
tested when the concentration of xanthan solution was 100 mg/L. Then, factors that may influence U
were analyzed, and the obtained results showed that xanthan’s control ability is affected by permeability
contrast (media combinations) and polymer concentration. Generally, when concentrations were in the
range of 100~800 mg/L, Umf > Ucf > Ucm. Finally, the actual degree of polymer propulsion under different
concentrations and media combinations was analyzed, and the obtained results showed that as different
media were varied in permeability change degree, while the migration speed presented an overall decrease
as the concentration increased, where the maximum migration front in the low-permeability zone (LPZ)
was more obvious than that in the high permeability zone (HPZ). This was consistent with the results
characterized by U....
Some physicochemical parameters related to groundwater quality obtained from Thittakudi taluk, Cuddalore district of Tamilnadu was investigated for the purpose of drinking. Total 40 groundwater samples are collected from tube wells during the month of February 2014. In the groundwater samples analysed in physic properties and chemical characters such as pH, EC, TDS, major cations and major anions were measured using standard procedure. The physical properties values are varied from pH (6.9 to 8.1), EC (610 μmho/cm to 3984.38 μmho/cm) and TDS (502 to 2550). Similarly major ions Ca (48 to 119), Mg (31.6 to 114), Na (3.7 to 75.7), K (1 to 66.1), HCO3 (162.5 to 420.9), SO4 (0.1 to 11.5), Cl (130.43 to 487.44) and NO3 (5 to 25.1) all parameters except pH and EC indicate the unite of Mg/l. all the measured parameters compared with WHO (2014) standard for drinking water quality permissible limit. In this case the study area samples are occurred some samples above and below the limit, which is the affect the some anthropogenic activities....
The water pollution source localization is of great significance to water environment protection. In this paper, a study on water\npollution source localization is presented. Firstly, the source detection is discussed. Then, the coarse localization methods and\nthe localization methods based on diffusion models are introduced and analyzed, respectively. In addition, the localization method\nbased on the contour is proposed.The detection and localization methods are compared in experiments finally.The results show that\nthe detection method using hypotheses testing is more stable. The performance of the coarse localization algorithm depends on the\nnodes density.The localization based on the diffusion model can yield precise localization results; however, the results are not stable.\nThe localization method based on the contour is better than the other two localization methods when the concentration contours\nare axisymmetric.Thus, in the water pollution source localization, the detection using hypotheses testing is more preferable in the\nsource detection step. If concentration contours are axisymmetric, the localization method based on the contour is the first option.\nAnd, in case the nodes are dense and there is no explicit diffusion model, the coarse localization algorithm can be used, or else the\nlocalization based on diffusion models is a good choice....
Somebody has rightly defined the energy in his very simple way that energy is the ability to do work, but I must not miss to say here that Energy is the thing on which the wheels of the development of any country depends. As much as the wheels of energy turns, more and more the country will prosper especially the case of India which is the seventh largest country in the world where the population is increasing drastically and that’s why is on the verge of extinction of disappearance of conventional fuels like coal, oil, and natural gas as these resources are very finite and if this will be on use in same manner as in current scenario then will be no more available in the near future. So the better, reliable, alternative of this is the more and more use of Non- conventional sources of energy which proved to be a milestone for the betterment of the society and citizens and by this the concept of mankind, humanity, and sustainable development will be retained. The major sources of Non-conventional energy are: a. solar b. Wind c. Tidal d. Geo-thermal e. Biological Energy. My present paper focuses attention towards not only the Types of energy resources to be used i.e. Non- conventional sources but the Alarming question is “How much and way of Producing and Managing Energy”? So we are giving more attention towards the better and better exploitation of Energy through Biological Approach i.e. Use of Bio energy....
Auditory information is widely used throughout the animal kingdom in both terrestrial and aquatic environments. Some marine species are dependent on reefs for adult survival and reproduction, and are known to use reef noise to guide orientation towards suitable habitat. Many others that forage in food-rich inshore waters would, however, benefit from avoiding the high density of predators resident on reefs, but nothing is known about whether acoustic cues are used in this context. By analysing a sample of nearly 700,000 crustaceans, caught during experimental playbacks in light traps in the Great Barrier Reef lagoon, we demonstrate an auditory capability in a broad suite of previously neglected taxa, and provide the first evidence in any marine organisms that reef noise can act as a deterrent. In contrast to the larvae of species that require reef habitat for future success, which showed an attraction to broadcasted reef noise, taxa with a pelagic or nocturnally emergent lifestyle actively avoided it. Our results suggest that a far greater range of invertebrate taxa than previously thought can respond to acoustic cues, emphasising yet further the potential negative impact of globally increasing levels of underwater anthropogenic noise....
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