water profiler Articles
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Methodology to elaborate the bathing water profile on urban beaches, according to the requirements of the European Directive 2006/7/EC: the case of Santander beaches (Spain)
The approval of the current Bathing Water Directive (Directive 2006/7/EC) set the necessity to define the bathing water profile. The goals established in the definition of the profile are: (i) to know the processes that determine the concentration of bacteriological indicators in the aquatic environment, (ii) to obtain relationships between the cause of pollution and its effects, and (iii) to ...
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Arsenic Treatment-Michigan
In May, 2003, upon approval by the County Health Department, Adedge Technologies in conjunction with its Michigan representative Artesian, Inc. installed the first arsenic treatment system for a Type II non-transient, noncommunity (NTNC) water system in Oakland County, Michigan. The 40 gallon per minute (gpm) system was installed at an elementary school serving 600 students to reduce ...
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Hydrogeochemical and isotopic characterization of groundwater at Žitný Island (SW Slovakia)
Hydrogeochemical investigations and spatial variations studies on the distribution of water isotopes and radiocarbon in the groundwater of Žitný Island (Rye Island) were carried out. Žitný Island represents the largest groundwater reservoir in Central Europe (about 10 Gm3). The chemical composition of the groundwater of Žitný Island depends mainly on the chemical composition of Danube water, ...
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Arsenic Treatment-Michigan
In May, 2003, upon approval by the County Health Department, Adedge Technologies in conjunction with its Michigan representative Artesian, Inc. installed the first arsenic treatment system for a Type II non-transient, noncommunity (NTNC) water system in Oakland County, Michigan. The 40 gallon per minute (gpm) system was installed at an elementary school serving 600 students to reduce naturally ...
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Pore water sampling in acid sulfate soils: a new peeper method
Received for publication April 9, 2009. This study describes the design, deployment, and application of a modified equilibration dialysis device (peeper) optimized for sampling pore waters in acid sulfate soils (ASS). The modified design overcomes the limitations of traditional-style peepers, when sampling firm ASS materials over relatively large depth intervals. The new peeper device uses ...
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EPA Arsenic Treatment Demonstration - Rollinsford, New Hampshire
In mid 2003, AdEdge was awarded 3 Arsenic Treatment Demonstration Projects with EPA. Implementation began in September, 2003 following approvals of the engineering submittals and permit by the New Hampshire Department of Environmental Services. Upon completion of construction of the new treatment building by the city of Rollinsford, AdEdge Technologies installed the 100 gpm APU arsenic ...
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EPA Arsenic Treatment Demonstration - Rimrock, Arizona
In mid 2003, AdEdge was selected to implement 3 full scale Arsenic Treatment Demonstration Projects with EPA using its granular ferric oxide technology. At the Rimrock location, implementation began in September, 2003 includingengineering submittals and permitting by the Arizona Department of Environmental Quality (ADEQ). Upon completing site preparations and construction in early March, AdEdge ...
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Multivariate consumption profiling (MCP) for intelligent meter systems: a methodology to define categories and levels
Multivariate Consumption Profiling (MCP) is a methodology to analyse the readings made by Intelligent Meter (IM) systems. Even in advanced water companies with well supported IM, full statistical analyses are not performed, since no efficient methods are available to deal with all the data items. Multivariate Analysis has been proposed as a convenient way to synthesise all IM information. MCP ...
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Impact of barrages on downstream air entrained in water and on upstream river water quality
This research studies the effect of barrages on upstream river water quality and on its self-assimilative. Also, the impact of barrages on upstream water temperature profile is studied. The amount of entrained air in water at river downstream side as a result of barrage existence is also studied. Constructing barrages in river reaches will alter its hydraulics and thus its water quality and ...
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Seasonal and Diurnal Ozone Variations: Observations and Modeling
Ozone mixing ratios observed by the Bordeaux microwave radiometer between 1995 and 2002 in an altitude range 25–75 km show diurnal variations in the mesosphere and seasonal variations in terms of annual and semi-annual oscillations (SAO) in the stratosphere and in the mesosphere. The observations with 10–15 km altitude resolution are presented and compared to photochemical and transport model ...
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Contrasting suspended covers reveal the impact of an artificial monolayer on heat transfer processes at the interfacial boundary layer
The highly variable performance of artificial monolayers in reducing evaporation from water storages has been attributed to wind speed and wave turbulence. Other factors operating at the interfacial boundary layer have seldom been considered. In this paper, two physical shade covers differing in porosity and reflectivity were suspended over 10 m diameter water tanks to attenuate wind and wave ...
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Prediction of the three-dimensional flow field and bed shear stresses in a regulated river in mid-Norway
This study evaluates the use of two Computational Fluid Dynamics (CFD) techniques in calculating the three-dimensional flow and bed shear stress distribution in a regulated river reach near Trondheim, Norway. The two different CFD codes being used in this study are: one commercial FLOW-3D and an in-house program, SSIIM, developed by the third author (NRBO). One of the primary differences between ...
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Adaptable urban water demand prediction system
In this work, identification of 24-hours-ahead water demand prediction model based on historical water demand data is considered. As part of the identification procedure, the input variable selection algorithm based on partial mutual information is implemented. It is shown that meteorological data on a daily basis are not relevant for the water demand prediction in the sense of partial mutual ...
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The Advantages of a Box Welded Pond Liner
There’s no time like the New Year for good intentions – and one which will pay dividends for many years to come is to create a garden pond. One of the first choices you’ll have to make is the type of liner to use. The material itself is a no-brainer – always use a synthetic rubber liner rather than polythene; synthetic rubbers are much tougher and longer lasting than the ...
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Changes in European precipitation seasonality and in drought frequencies revealed by a four-century-long tree-ring isotopic record from Brittany, western France
A new paleoclimatic reconstruction for western France is obtained from tree-ring cellulose stable isotopes. Living trees from Rennes Forest and beams from two ancient buildings in Rennes city have been combined to cover the past four centuries with a gap from 1730 to 1750. The cellulose 13C reflects the progressive changes in atmospheric CO2 isotopic composition. The combined 13C and 18O ...
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Project profile - arsenic treatment-Michigan
Background In May, 2003, upon approval by the County Health Department, Adedge Technologies installed the first arsenic treatment system for a Type II nontransient, non-community (NTNC) water system in Oakland County, Michigan. The 40 gallon per minute (gpm) modular system was installed at an elementary school serving 600 students to reduce naturally occurring arsenic to meet the new EPA maximum ...
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Rectangular side weirs discharge coefficient estimation in circular channels using linear genetic programming approach
Side weirs are diversion structures extensively used in irrigation, flood protection and combined sewer systems. Accurate estimation of the discharge coefficient (Cd) of side weirs is essential to compute the water surface profile over the weirs and to determine the lateral outflow rate from the system. In this paper, we have utilized a linear genetic programming (LGP) technique to develop new ...
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Investigation into mixing in the shallow floodplain Poyang Lake (China) using hydrological, thermal and isotopic evidence
Although mixing in lakes has significant environmental and ecological implications, knowledge of mixing dynamics for shallow floodplain lakes has received little attention. In this study, hydrological, thermal and isotopic investigations were undertaken to provide evidence for the mixing in the large, shallow floodplain Poyang Lake (China). Depth profiles of water velocity, water temperature ...
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Spatial distribution characteristics of polycyclic musks as a chemical marker in river water and sediment compared with other typical pollutants
Polycyclic musks (PMs), widely used in the cosmetic and perfume industries, are gaining attention as a new type of persistent organic pollutant (POP). The related contamination in developing countries, such as China, where the use of these compounds is increasing, needs to be closely monitored. This work systematically studied the distribution profile (water-suspended ...
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New Agent for Formation-Damage Mitigation in Heavy-Oil Reservoir: Mechanism and Application, China (SPE 112355) - Case Study
After the biological enzyme solution extracts crude oil from the sand surface, GreenZyme® can make oil and sand flow separately, preventing the formation of mud cakes while improving the mobility of crude heavy oil. Abstract Migration of formation fines has been shown to cause production decline in many wells, especially for sand production wells in heavy oil reservoir. Filter cakes in wire ...
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