Current Issue : January - March Volume : 2015 Issue Number : 1 Articles : 6 Articles
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....
Groundwater is a major source of drinking water in rural India. But unfortunately the quality of groundwater is deteriorating day by day due to human activities. The present study was aimed to assess the quality of all groundwater samples of Gonsa village of Ujjain.The physico-chemical parameters were analyzed by following the standard methods of APHA and results were compared with BIS, WHO, ICMR standards for drinking water. Nitrate, Sulfate, Total alkalinity and total hardness were found to be within the limits of WHO and BIS (except open well sample where TA and TH were higher than the permissible limit). pH (7.5 to 10.1), Turbidity (6.358 to 42.277 NTU), Dissolved solids (1274 to 2624 mg/l), were found to be higher than the permissible limits....
Longshore sediment transport rate was estimated using energy flux method for Bhavanapadu coast for the duration of one year from January to December 2005. During the study period, wave height ranged from 0.2 m (Jan-May, 2005) to 0.9 m (July-Aug, 2005) while wave period fluctuated from 2 s (Jan-April, 2005) to 4 s (June-Sep, 2005). The dominant waves were from S and SW directions during February to October 2005 and from N and NE during the period of January, November and December 2005. The annual gross sediment transport rate was 8.67 × 105 (m3 yr-1) while the annual net sediment transport rate was 6.87 x 105 (m3/year) and towards northeast. Present study reveals that the beach along the Bhavanapadu coast is under severe erosion. So continuous time-series and event-related field data are required to study erosion and accretion cycle for the conservation and management purposes....
The potential of using three different data-driven\ntechniques namely, multilayer perceptron with backpropagation\nartificial neural network (MLP), M5 decision\ntree model, and Takagiââ?¬â??Sugeno (TS) inference system for\nmimic stageââ?¬â??discharge relationship at Gharraf River system,\nsouthern Iraq has been investigated and discussed in\nthis study. The study used the available stage and discharge\ndata for predicting discharge using different combinations\nof stage, antecedent stages, and antecedent discharge values.\nThe modelsââ?¬â?¢ results were compared using root mean\nsquared error (RMSE) and coefficient of determination (R2)\nerror statistics. The results of the comparison in testing\nstage reveal that M5 and Takagiââ?¬â??Sugeno techniques have\ncertain advantages for setting up stageââ?¬â??discharge than\nmultilayer perceptron artificial neural network. Although\nthe performance of TS inference system was very close to\nthat for M5 model in terms of R2, the M5 method has the\nlowest RMSE (8.10 m3/s). The study implies that both M5\nand TS inference systems are promising tool for identifying\nstageââ?¬â??discharge relationship in the study area....
Nowadays, water treatment is a big issue in\nrural areas especially in African country. Due to lack of\nfacilities available in those areas and the treatment are\nexpensive. In this regard�s an attempt has been made to\nfind alternative natural way to treat the rural drinking\nwater. The experiment trials were undertaken on the most\npromising plant extracts, namely: Moringa oleifera,\nJatropha curcas and Guar gum. The extracts were used to\ntreat contaminated water obtained from a number of wells.\nThe results showed that the addition of M. oleifera can\nconsiderably improve the quality of drinking water. A\n100 % improvement both in turbidity and reduction in\nEscherichia coli was noted for a number of the samples,\ntogether with significant improvements in colour....
For a long time, man had to explore groundwater\nby constructing special hydraulic works. Thus, in\nancient times, hydraulic civilizations such as the foggaras\nin Iran, Egypt, China and Latin America were born. In the\nAlgerian Sahara, the foggara has played a leading role in\nthe field of abstraction of groundwater distribution and\nsharing through formal and strict rules. Today, this technique\nhas been disappearing and drying up. This decline\ndoes not only increase year by year, there were over a\nthousand foggaras in the early 1960s, but today only 915\nfoggaras have been listed for all those regions. Among the\nfactors favoring the decline of foggara is the exploitation\nof water by deep holes drilled near the latter. In this article,\nwe try to show the impact of drilling on the foggara....
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