lake water Articles
-
Hydrochemistry in Meromictic Lake Zige Tangco, Central Tibetan Plateau
Abstract: Lake Zige Tangco was discovered as a meromictic saline endorheic lake in central Tibetan Plateau. Its hydrochemical characteristics of water had been investigated in the summers of 1998, 1999 and 2002. The future hydrochemistry of lake water will possibly evolve into a more depleting Ca^{2+}, Mg^{2+} with concentrated Na^+-CO_3^--SO_4^{2-}-Cl^-, that is to say, the lake could become a ...
By IOS Press
-
Drinking Surface Water Pilot - Case Study
Bowen Island Municipality’s Cove Bay Water System (CBWS) treats surface water from Grafton Lake to drinking water. Historically, the lake water was treated with hypochlorite addition however this treatment is insufficient to meet the Canadian Drinking Water Quality Guidelines (CDWQG) for several parameters including protozoa, turbidity, manganese and colour. ...
-
A screening study on the fate of fullerenes (nC60) and their toxic implications in natural freshwaters
Increasing usage of fullerenes (C60) increases their opportunities to be released into the environment. For risk assessment, it is important to understand the environmental fate and ecotoxicological effects of C60. In this study, fullerene settling was measured during a one‐year period with four different lake waters and an artificial freshwater, and D. magna immobilization and fullerene ...
-
Water Quality and Toxicity Assessment in Koronia Lake - Greece
Abstract :Lake Koronia, located in Northern Greece, is an environmentally sensitive area protected by Ramsar Convention. However, COD values higher that 900 mg/l and nitrate-nitrogen concentration higher than 10 mg/l were measured in the lake water. Furthermore, toxicity bioassays based onDaphnia magna, resulted in mortality values of test species higher than 40% in the lake water. The poor water ...
-
Comparative analysis of time-scaling properties about water pH in Poyang Lake Inlet and Outlet on the basis of fractal methods
Detrended fluctuation analysis (DFA) and multifractal methods are applied to the time-scaling properties analysis of water pH series in Poyang Lake Inlet and Outlet in China. The results show that these pH series are characterised by long-term memory and multifractal scaling, and these characteristics have obvious differences between the Lake Inlet and Outlet. The comparison results suggest that ...
-
Study on water pollution along the Kukshet Lakes of Nerul, Navi Mumbai, India with special reference to pollution due to heavy metals
Monitoring and assessment of fresh water has become an environmental concern due to the contamination by human kind, thereby decreasing the suitability of the fresh water. The Kukshet Lake, which is the study area of the present investigation receives domestic raw sewage from surrounding habitation; so also the activities like cattle washing, cloth washing, bathing, religious activities like idol ...
-
The Great Lakes, an Ecosystem Rehabilitated, But Still Under Threat
Since 1972, the Parties (United States and Canada, 1987) to the Great Lakes Water Quality Agreement have been working collaboratively to achieve the purpose of the Agreement “to restore and maintain the chemical, physical and biological integrity of the waters of the Great Lakes Basin Ecosystem”. Billions of dollars and countless person – hours have been expended towards this end, but have the ...
-
Mine Water
THis article shows the use of the Cogent PDV6000plus as a portable analyser used to monitor metal concentration in river and lake water which is polluted by acid mine water from abandoned mine ...
-
Water pollution study of the Shirvane and Nerul lakes situated at Nerul, Navi Mumbai, India
The areas of study selected in the present investigation are Shirvane and Nerul lakes situated at Nerul which is considered as the queen of Navi Mumbai, the city on the west coast of the Indian state of Maharashtra. The lake areas receive domestic raw sewage from surrounding habitation; so also the activities like cattle and cloth washing, bathing, religious activities like idol immersion etc. ...
-
Elimination of enteric indicators and pathogenic bacteria in secondary effluents and lake water by solar disinfection (SODIS)
The reduction of enteric indicators (fecal coliforms (FC) and Enterococcus faecalis) and elimination of pathogenic bacteria (Salmonella spp. and Staphylococcus aureus) in the secondary effluents and lake water by solar disinfection (SODIS) was studied in this article. FC, E. faecalis, Salmonella spp. and S. aureus were isolated and enumerated using membrane filtration techniques after SODIS of ...
-
Ceco Pipeline Services - Case Study
Grant Scott Project Manager Ceco Pipeline was hired to install a new pipeline on the edge of Arcadia Lake in Edmond, OK. Ceco’s client was Southern Star Central Gas Pipeline Company. The new pipeline was installed 8’ below ground. The working area was about 200’ by 80’ water depth ranged from 3’ to 4’. To remove the lake water from the work site, ...
-
Metals‐mediated climate susceptibility in a warming world: Larval and latent effects on a model amphibian
Though sophisticated models predict the effects of future temperatures on ectotherms, few also address how ubiquitous sublethal contaminants alter an organism's response to thermal stress. In ectotherms, higher metabolic rates from warming temperatures can beneficially speed metabolism and development. If compounded by chronic, sublethal pollution, additional resource demands for elimination ...
-
A case study of some lakes located at and around Thane City of Maharashtra, India, with special reference to physico-chemical properties and heavy metal content of lake water
The increasing trend in concentration of metals in the environment has created considerable attention amongst ecologists globally during the last decades. However, no such studies have been carried out in India and there are no past metal load data available. Therefore, we initiated a study to estimate the levels of water pollution of the Upavan, Masunda, Makhmali and Rewale Lakes situated at ...
-
Lake hydrology, water quality and ecology impacts of altered river–lake interactions: advances in research on the middle Yangtze river
Water and mass exchange between rivers and lakes are key processes that maintain the health of the ecology of river–lake systems. Alteration to river–lake interactions have great impacts on water and mass balances. Naturally connected to the middle Yangtze River are the Poyang Lake and Dongting Lake, which are the largest and the second largest freshwater lakes in China. The operation of the ...
-
Removal of nitrogen and carbon organic matter by chitosan and aluminium sulphate
River and lake waters were separated into four fractions to study the removal of nitrogen and carbon organic matter using chitosan (CH) and aluminium sulphate (AS). The fractions were very hydrophobic acid, slightly hydrophobic acid, charged hydrophilic acid and neutral hydrophilic. The results showed that the whole and fractionated water from both sources have a markedly hydrophobic character. ...
-
Water-level regulation for freshwater management of Bosten Lake in Xinjiang, China
The Bosten Lake is the largest inland freshwater lake of China, in which water level and salinity fluctuate due to the imbalance between inflows and outflows under climate change and anthropogenic activities. This paper employed system dynamics as an effective methodology to grasp the regulation rules for sustainable freshwater management of the Bosten Lake. Results show the following. (1) ...
-
Prediction of lake eutrophication using artificial neural networks
An artificial neural network (ANN), which is a data–driven modelling approach, is proposed to indicate the water quality of Lake Fuxian, the deepest lake of southwest China. To determine the nonlinear relationships between the water quality factors and eutrophication indicators, several ANN models were chosen. The back–propagation and radial basis function neural network models were applied to ...
-
Drinking Water Surface to Potable - Case Study
Continuous Ultra Filtration system has been installed for surface water to potable in the Village of Granisle BC, a remote village located on the shores of Babine Lake in the Northern Interior of British Columbia. The year-round population is approximately 303 people, with fluctuations during tourist season. The system purifies lake water of pathogens, TOC. colour and metals. Weekly DIT is ...
-
Effects of two different water sources used for irrigation on the soil geochemical properties and the quality of the Lohan guava (Psidium guajava L. Lohan)
The effect of two different water sources (treated waste water and lake water) used for irrigation on the soil geochemical properties and the fruit quality parameters of the Lohan guava were studied. The fruits' physical attributes, physicochemical attributes, nutritional attributes, mineral content as well as consumers’ acceptance were evaluated. The properties of the different water sources ...
-
Inter-annual variations of Poyang Lake area during dry seasons: characteristics and implications
Variations in a lake area constitute an important indicator of the modifications of the lake hydrology. This paper explores the inter-annual variations of the Poyang Lake area during the dry seasons occurring within the 1961 to 2010 period and further quantifies the severity of dryness recently endured during the 2000s. A physically based hydrodynamic model of Poyang Lake established the ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you