water quality directive Articles
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Effects of intermittent polyelectrolyte addition on water quality in direct filtration
The effects of intermittent polyelectrolyte addition on the quality of effluent water and on the development of filter headloss were studied. Anionic and cationic polyelectrolytes were applied to two similarly constructed pilot sand filters. The surface water used in the study was obtained from Ömerli, which is one of the main drinking water reservoirs of Istanbul. Six sets of experiments were ...
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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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Public preferences for water quality improvements: implications for the implementation of the EC Water Framework Directive in Scotland
The EC Water Framework Directive (WFD) sets ambitious quality targets for member state water bodies by 2015. The provisions are being transposed predominantly using a cost-effectiveness criterion, which raises questions about the relative balance of costs [of reaching good status (GS)] and corresponding (non-)market benefits or the economic efficiency of the legislation. This study provides an ...
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Derivation of water framework directive environmental quality standards
In 2005, the Department of Environment, Food, and Rural Affairs (Defra) proposed that the UKTAG Chemistry Task Team (CTT) should develop standards for certain Dangerous Substances Directive (DSD) List II substances as Annex VIII substances under the Water Framework Directive. These are substances for which EQSs are currently available, i.e. List II parameters as listed in the Dangerous Substances ...
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A geographic information system screening tool to tackle diffuse pollution through the use of sustainable drainage systems
Sustainable drainage systems (SUDS) offer many benefits that traditional solutions do not. Traditional approaches are unable to offer a solution to problems of flood management and water quality. Holistic consideration of the wide range of benefits from SUDS can result in advantages such as improved flood resilience and water quality enhancement through consideration of diffuse pollution ...
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Development and assessment of an integrated ecological modelling framework to assess the effect of investments in wastewater treatment on water quality
Worldwide, large investments in wastewater treatment are made to improve water quality. However, the impacts of these investments on river water quality are often not quantified. To assess water quality, the European Water Framework Directive (WFD) requires an integrated approach. The aim of this study was to develop an integrated ecological modelling framework for the River Drava (Croatia) ...
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Evaluation of soil protection aspects in certain programmes of measures adopted by member states
The Communication ‘Towards a Thematic Strategy for Soil Protection’ (COM 2002/179 final) paved the way towards a common EU soil policy. In addition, the Commission commented on the inter-relationship of soil protection with other areas of Community policy (the Nitrates Directive and Water Framework Directive, the Air Quality Directive, the Common Agricultural Policy, Transport Policy and Research ...
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JXCT Water Quality Detector
JXCT major in different kinds of water quality analyzer,water quality tester,water quality monitor , water quality instrument and water quality detector, it can detect water PH value, residual chlorine, turbidity, suspended solids, COD, BOD, conductivity, dissolved oxygen and other parameters to achieve “river and lake water”, “drinking water”, “domestic ...
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Emission standards versus immission standards for assessing the impact of urban drainage on ephemeral receiving water bodies
In the past, emission standard indicators have been adopted by environmental regulation authorities in order to preserve the quality of a receiving water body. Such indicators are based on the frequency or magnitude of a polluted discharge that may be continuous or intermittent. In order to properly maintain the quality of receiving waters, the Water Framework Directive, following the basic ideas ...
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Applying reliability analysis to evaluate water treatment plants
The aim of this study was to demonstrate the applicability of reliability analysis to a water treatment plant (WTP). Data from daily monitoring of raw and finished water quality from a direct filtration WTP covered the parameters of turbidity, apparent colour, pH, aluminum, chlorine and fluoride, from December 2007 to August 2011. Data analysis included descriptive statistics and adherence ...
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Probabilistic modelling and evaluation of wastewater treatment plant upgrades in a water quality based evaluation context
Process choice and dimensioning of wastewater treatment plants (WWTPs) is difficult while ensuring regulatory standards are met and cost-efficiency is maintained. This step only accounts for a small fraction of the upfront costs, but can lead to substantial savings. This paper illustrates the results of a systematic methodology to evaluate system upgrade options by means of dynamic modelling. In ...
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Application of ion-sensitive sensors in water quality monitoring
Abstract: Within the last years a trend towards in-situ monitoring can be observed, i.e. most new sensors for water quality monitoring are designed for direct installation in the medium, compact in size and use measurement principles which minimise maintenance demand. Ion-sensitive sensors (Ion-Sensitive- Electrode – ISE) are based on a well known measurement principle and recently some ...
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Gasoline spill from underground storage tanks - Conoco, Inc.
LOCATION: Watsonville, CaliforniaPROJECT DATE: July, 1987 to July, 1988CLIENT: Conoco, Inc. BACKGROUND: A gasoline spill from underground storage tanks at a service station in Watsonville was discovered. Approximately 1,500 gallons were lost to the shallow aquifer of low permeability. Physical recovery operations were not possible. The California Regional Water Quality Control Board (Central ...
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Microorganism inactivation by an ozonation step optimized for micropollutant removal from tertiary effluent
This paper demonstrates the additional benefit of the microbicidal efficacy of an ozonation plant implemented for micropollutant removal from tertiary effluent. Due to the low amount of viruses and protozoa in the tertiary effluent, bacteriophage MS2 and spores of Bacillus subtilis were dosed as surrogates. At specific ozone consumptions of 0.6 and 0.9 g O3/g dissolved organic carbon (DOC) a ...
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Nutrient-based ecological consideration of a temporary river catchment affected by a reservoir operation to facilitate efficient management
The water quality status of the Kouris river in Cyprus was examined in order to fulfil the requirements for ecological quality as defined by the Water Framework Directive-2000/60/EC. Nitrate concentration (mean value) was increased in the Limnatis (2.8 mg L−1) tributary in comparison with the Kryos (2.1 mg L−1) and Kouris (1.0 mg L−1) tributaries depicting the influence of ...
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European bathing water quality in 2011
Europeans care about water quality and knowing that they have clean and safe water to swim or play in is an important factor in their choice of a holiday or weekend destination. For the tourism industry, clean and safe water is also a major factor in attracting visitors to an area. To allow Europeans to make an informed choice, the European Environment Agency and the European Commission publish ...
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Micropollutants in stormwater runoff and combined sewer overflow in the Copenhagen area, Denmark
Stormwater runoff contains a broad range of micropollutants. In Europe a number of these substances are regulated through the Water Framework Directive, which establishes Environmental Quality Standards (EQSs) for surface waters. Knowledge about discharge of these substances through stormwater runoff and combined sewer overflows (CSOs) is essential to ensure compliance with the EQSs. Results from ...
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EU Water Policy: Making the Water Framework Directive work - The quality of transposition and implementation of the WFD at the end of 2004 - A second Snapshot report
The European Environmental Bureau (EEB) and WWF European Policy Office closely follow the Water Framework Directive (WFD) implementation at EU level in order to ensure the achievement of its objectives and the ensuing move towards long-term water management to provide future generations and their environment with sufficient water of good quality. Both organisations have already explained ...
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Economic Analysis of Environmental Externalities
' Economic analysis of pollution prevention and abatement measures requires estimating the potential benefits from controlling pollution as well as the better-known costs of new equipment or processes. This note discusses the economic analysis of environmental externalities, using a wide range of valuation techniques.' Industrial activities often produce various pollutants; these include air and ...
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British Columbia Approved Water Quality Guidelines: Aquatic Life, Wildlife and Agriculture
The British Columbia (BC) Water Quality Guidelines (WQG) was developed by the BC Ministry of Environment and Climate Change Strategy (ENV), and it provides the safe levels for substances to enforce protection of water used for drinking, agriculture, aquatic life, recreation and wildlife. The Environmental Management Act provides the basis for the formation and implementation of WQG through ...
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