measuring water quality Articles
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MP 1 pump indispensable when measuring water quality - Case Study
Good surface and groundwater quality means sustainable development of plants, animals, and reliable drinking water. To guarantee this quality, a policy has been formulated in the Water Framework Directive which must be observed by all EU Member States. Due to the integration of various European water quality directives, the European countries are on the same page in terms of water-related issues, ...
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The water quality EC sensor has the following features
Background:A water quality EC sensor is a device used to measure water quality. It usually consists of multiple sensors and measurement systems. The water quality EC sensor measures the electrical conductivity (EC) of the water and uses other indicators, such as pH value and temperature, to determine the water quality.The water quality EC sensor has the following features:High sensitivity: Water ...
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More control of blue-green algae for Dutch Water Board by means of continuous measurement - Case Study
Client Wetterskip Fryslân Country The Netherlands Friesland is a Dutch province rich in water. To ensure that all the water is and remains clean Friesland Water Board, Wetterskip Fryslân, measures the water quality at over 200 sites. This includes swimming and nature site De Kleine Wielen in Leeuwarden. At this site, Water Board Friesland measures blue-green algae using equipment ...
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Water pH sensor has the following characteristics
Background: Water pH sensor is a device used to measure water quality, usually consisting of multiple sensors and measuring systems. The principle of water pH sensor is to calculate various substances in the water, such as bicarbonate and alkalinity, by measuring the pH value of the water and combining the temperature, turbidity and other indicators.Water pH sensor has the following ...
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Common water quality sensors
The role of water quality sensor:Water quality sensor is a device used to measure water quality, usually consisting of multiple sensors and measuring systems. The function of water quality sensor is to detect various substances in water, and convert them into electrical signals, and then through the measurement system for processing and analysis, get the indicators of water quality. Water quality ...
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Portable water quality sensor application
Background: Portable water quality sensor is a device used to monitor water quality, usually consisting of multiple sensors and measuring systems. The principle of portable water quality sensor is to measure various substances in the water, and convert them into electrical signals, and then through the measurement system for processing and analysis, the water quality indicators.Portable water ...
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Principles for the application of the cost-effectiveness analysis in water quality sector
Cost-effectiveness analysis (CEA) provides useful information for the cost and the environmental effectiveness of alternative management options in realising a given environmental goal. The purpose of this paper is to present factors that could be considered essential for the identification of the most cost-effective combination of the measures for water quality management. The reviewed ...
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Estimation of build-up and wash-off models parameters for an east-Australian catchment
This paper presents calibration of a catchment water quality model for continuous simulation of the water quality parameters from a catchment to the catchment outlet. The model is an integration of two sub-models: the hydrologic model and the water quality model. The hydrologic model estimates the amount of surface water runoff generated from the catchment during the storm event/ events. The ...
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Oxygen deoxygenation sensor has the following characteristics
Background:Water dissolved oxygen sensor is a device used to measure water quality, usually consisting of multiple sensors and measuring systems. The principle of water dissolved oxygen sensor is to calculate various substances in the water, such as pH value and chlorophyll, by measuring the dissolved oxygen content in the water, and combining the temperature, turbidity and other indicators. ...
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Application of a catchment water quality model for an East–Australian catchment
This paper presents the calibration of a catchment water quality model developed for the continuous simulation of stormwater pollutants from a catchment to the catchment outlet. Calibration of the model was performed using the rainfall and water quality data collected for 'Saltwater Creek Catchment' in Gold Coast, Australia. Runoff estimations from the hydrologic model were compared with ...
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Application of unidirectional flushing in water distribution pipes
In this study unidirectional flushing (UDF) was conducted to improve the effectiveness of deposit removal from internal pipe walls and to provide information on pipe networks to enable operators to implement flushing in field. Four ductile cast iron pipes with epoxy-lined and cement-lined were selected for the practice of UDF. Water pressure was measured using a data logger equipped with a ...
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Walhampton Prep and Boarding school
Location: New Forest Service: Environmental Water Sampling - Lake Project Description: Envirochem first visited the lake to identify and prioritise the high risk outlet points. Project Scope Several samples were taken from the designated sampling locations to monitor and measure the water quality as they carry out sport activities in the lake The results must comply with the EC ...
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Decoy Country Park Newton Abbot
Location: Newton Abbot Service: Postal Service Project Description: Envirochem carries out the analysis of environmental water samples during the summer season to measure the water quality as they carry out activities in the lake. Project Scope All the equipment required for this postal service is provided to the client such as cool packs, an icepacks, sampling bottles, sampling ...
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Water quality measurement extreme
Background The characteristics of the Rio Tinto in the south-west of Spain, near Sevilla, are his ruby colour and the extremely sour pH-value between 0 and 2 pH-units. The river carries a mixture between poisonous heavy metals like copper, nickel, arsenic, iron and cadmium, dissolved in high-percent sulphuric acid. It’s not proved where these unusual conditions come from. As per current ...
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Handbook for developing watershed plans to restore and protect our waters
This handbook provides information on developing and implementing watershed management plans that help to restore and protect water quality. A watershed is the area of land that contributes runoff to a lake, river, stream, wetland, estuary, or bay. A watershed management plan defines and addresses existing or future water quality problems from both point sources and nonpoint sources of ...
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Environment, governance and GDP: discovering their connections
This article investigates the impacts of governance and GDP on environmental quality, as measured by water quality, air quality, wilderness of land and biodiversity, using data from 123 countries. It finds no evidence that GDP growth will turn environmental degradation around after a certain point, as much of the literature has suggested. Instead, GDP's impact is mixed and conditional upon ...
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Improved drinking water and diarrhoeal morbidity and mortality in developing countries: a critical review
Access to improved drinking water is widely advocated as an effective way to reduce diarrhoea-related morbidity and mortality, particularly in poorest areas of the world and in most vulnerable population segments like children. Initial focus on improved water at the source point has been replaced by an emphasis in promoting interventions to increase access to microbiologically improved drinking ...
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The Importance of Isolation in Water Quality Measurement
What is isolation? Electronic isolation is the practice of preventing current flow from one electrical system to the other while still allowing information or energy exchange between the two systems. Benefits of isolation include elimination of ground loops along with electrical surge protection for both users and attached electronic devices. Isolation is commonly accomplished with ...
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Optimal sampling network for monitoring the representative water quality of an entire reservoir on the basis of information theory
This study presents a method for optimal selection of sampling stations for representative and effective water quality monitoring of a reservoir on the basis of information theory. We adopt an objective function used for the design of other hydrological monitoring networks such as rain gauge networks. Unlike rain gauges, in which only a single variable of rainfall is of interest, water quality ...
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Real-time control of sewer systems using turbidity measurements
Real-time control (RTC) of urban drainage systems has been proven useful as a means to reduce pollution by combined sewer overflow discharges. So far, RTC has been investigated mainly with a sole focus on water quantity aspects. However, as measurement techniques for pollution of wastewater are advancing, pollution-based RTC might be of increasing interest. For example, turbidity data sets from ...
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