continuous turbidity monitoring Articles

  • TURBIDITY BARRIER ULTIMATE GUIDE

    TURBIDITY BARRIER ULTIMATE GUIDE Definition Floating turbidity barriers (a.k.a. silt curtains, silt boom, sediment curtain) are a temporary in-water sediment barrier consisting of a continuous geotextile fabric curtain suspended from a flotation device on the water surface and held in ...

  • Assessment of erosion and sedimentation dynamic in a combined sewer network using online turbidity monitoring

    Eroded sewer sediments are a significant source of organic matter discharge by combined sewer overflows. Many authors have studied the erosion and sedimentation processes at the scale of a section of sewer pipe and over short time periods. The objective of this study was to assess these processes at the scale of an entire sewer network and over 1 month, to understand whether phenomena observed ...


    By IWA Publishing

  • A study on the estimating of sediment concentration with turbidity and acoustic backscatter signal for different sediment sizes

    Turbidity and acoustic measurement are alternative indirect methods to determine sediment concentration. Acoustic Doppler velocimetry can be used to estimate suspended sediment concentration (SSC) with the signal-to-noise ratio (SNR) in the water. In this study, particles size affecting turbidity and SNR values was investigated using four different sediment size groups (0–50, 50–100, 100–200, ...


    By IWA Publishing

  • Monitoring watershed health

    Background Municipal water quality managers recognize the need for data that can be used to monitor and assess the impact of urbanization on the condition of natural watersheds. Storm events, in conjunction with the alteration of native landscape, building of roads and overuse of fertilizer, can contribute to excess nutrients, sediment and other pollutants in environmentally significant ...

  • From mess to mass: a methodology for calculating storm event pollutant loads with their uncertainties, from continuous raw data time series

    With the increasing implementation of continuous monitoring of both discharge and water quality in sewer systems, large data bases are now available. In order to manage large amounts of data and calculate various variables and indicators of interest it is necessary to apply automated methods for data processing. This paper deals with the processing of short time step turbidity time series to ...


    By IWA Publishing

  • DT82E Environmental Data Logger Monitors Catchment Areas

    Water disruptions occur after a large amount of water is rapidly collected in a catchment area. Testing for a variety of chemical and biological agents as well as clarity, rate of movement and water levels are continuously monitored for environmental management. The dataTaker DT82E Environmental data logger can be used to monitor turbidity, conductivity, temperature, pH, level and flow sensors. ...


    By CAS DATALOGGERS

  • In-pipe monitors turn dreams into reality

    In-pipe monitors turn dreams into reality The quality of tap water has improved enormously in recent decades, but for largely technological reasons, until recently, knowledge of water quality between the treatment works and the tap has been an almost impossible dream for water treatment and distribution network managers. In this article, Jo Cooper, Product Specialist at Intellitect Water, will ...


    By Intellitect Water Ltd

  • Final effluent monitors protect wastewater treatment efficiency

    Southern Water operates 370 wastewater treatment plants (WWTP), many of which are unmanned for most of the time and most have numeric environmental permits, so a network of online monitors has been established to improve treatment and protect discharge compliance. This has involved the installation of final effluent monitors at over 300 sites in a programme that has lasted for more than ten ...


  • Unique technology for monitoring piped water

    INTELLITECT WATER has launched a unique, highly innovative drinking water monitoring technology that will revolutionise the delivery of drinking water. The new technology monitors the quality of water in pipeline distribution networks and for the first time provides reliable data to protect the integrity of the water quality, to enhance customer satisfaction and to improve operational efficiency. ...


    By Intellitect Water Ltd

  • Monitoring Leaks from Heat Exchanger - Paper Plant

    The Situation A Paper plant in the Eastern US uses 500 GPM filtered pond water for cooling lubricating oil in their paper line.  The now warmer water is sewer to an on-site pond.  Because the water is used to cool lubricating oil, the plant could not reuse the water in their pulping process for fears of possible oil contamination of the paper pulp.  The plant needed to be ...

  • In-situ quality monitoring station in Lower Saxony

    Background 'Duemmer' is a shallow lake in the south-west of Lower Saxony; through the lake flows the river 'Hunte'. The catchment area spans 426 km2. With a surface of 12.4 km2 and an average depth of 1.1 m there is a water volume of approx. 14 million m3. Large parts of the lakeside are a nature reserve and the lake is a popular local recreation area. The lake suffers from strong nutrient ...

  • Water Quality Monitoring and Testing Using an Environmental Logger

    Intelligent dataTaker System from CAS DataLoggers Water disruptions typically occur after a large amount of water has rapidly collected in a catchment area. As a result this water is subject to continual monitoring and testing for a variety of chemical and biological agents as well as clarity, rate of movement, and water levels for environmental management. Turbidity, conductivity, ...


    By CAS DATALOGGERS

  • Remote monitors track river restoration success

    The Norfolk Rivers Trust has installed a remote river monitoring station that has been tracking water quality and flow before and after river restoration work at an area of ecological importance on the River Nar. Rising in chalk hills to the east of the village of Tittleshall, the river flows south for 2.5 km until it reaches Mileham, then predominately west for 39.5 km through the villages of ...


  • Unique Chinese wetland park monitors water 24/7

    Project background The Deyang area in southwest China was struck hard by an earthquake in 2008. Since then, reconstruction has taken place with a tremendous speed and the urban population grew exponentially. Due to this urbanisation, the city’s water supply system can not meet its rapidly growing water demand. Currently, two-thirds of ...


    By Eijkelkamp Soil & Water

  • Partech Case Study: Effluent Water Quality Monitoring at an Open Case Coal Site

    Merthyr Tydfil in Wales is home to the massive Ffos-y-fran land reclamation scheme by Millar Argent, where over 10 million tonnes of coal will be extracted in the next fifteen years! So what’s the point of the land reclamation scheme? The purpose is to restore the land to its former principle use and Partech are helping with the discharge monitoring on site. You ...


    By Partech (Electronics) Ltd.

  • High resolution environmental monitoring to support the development of water quality legislation - Case Study

    Aquaread Ltd, an award winning British manufacturer of multi-parameter water quality test equipment, are supplying monitoring equipment and research funding to support the development of improved water quality guidelines across Europe. The research is being conducted in collaboration with scientists at the Aquatic Research Centre at the University of Brighton, and is already influencing ...


    By AQUAREAD Limited

  • Guaynabo WTP in Puerto Rico saves thousands with UV254 Monitoring Package - Case Study

    Summary Dealing with fluctuating water sources is not an easy task for plant operators. Seasonal variation, heavy rain fall or accidental contamination events change the raw water quality, requiring immediate attention. This is a familiar scenario for Facility Manager, Nancy Ma. Cáceres Acosta at the Los Filtros Water Treatment Plant in Puerto Rico. She has been producing highquality ...


    By Real Tech Inc.

  • Assessing dry weather flow contribution in TSS and COD storm events loads in combined sewer systems

    Continuous high resolution long term turbidity measurements along with continuous discharge measurements are now recognised as an appropriate technique for the estimation of in sewer total suspended solids (TSS) and Chemical Oxygen Demand (COD) loads during storm events. In the combined system of the Ecully urban catchment (Lyon, France), this technique is implemented since 2003, with more than ...


    By IWA Publishing

  • Seatac airport third runaway

    Active Treatment with 1% ChitoVan™ Chitosan Acetate The west side of Sea-Tac airport was widened by adding 11 million cubic yards of fill dirt to create the 3rd runway. Because the west side of the airport drains to Miller Creek, a protected NW stream, all of the construction stormwater had to be captured and treated prior to discharge. During the project over 5 billion gallons of ...


    By Dungeness Environmental

  • Chlorine mystery solved

    Following the installation of in-pipe drinking water quality monitoring sondes, distribution engineers discovered an occasional significant disparity between the Intellisondes’ data and results from grab samples tested by a photometer tablet (DPD) method. For most of the time, there was close agreement between the two methods, but periodically, the photometer results varied wildly, whilst ...


    By Intellitect Water Ltd

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