turbidity calibration Articles

  • Turbidity Measurement - Not Only Nephelometric At 90°

    This article was featured in Lab Asia - July/August 2008 Turbidity can be described only with limitations as a physical and technical measurement category. The unusual nature of the turbidity measurement in comparison to other parameters can be recognised already in its historical development: Initially a procedure was introduced by Jackson and Whipple around 1900 determining turbidity by ...


    By WTW - a xylem brand

  • Turbidity - A Meaningful Parameter For Drinking Water

    This article was featured in International Labmate - July 2008 Turbidity measurement represents a method appearing quite simple with a very complex background. Its complexity is shown by the fact that possibilities for objective and reproducible measurements were developed just about in the 2nd half of the 20th century. Turbidity is caused by dispersion of undissolved particles ...


    By WTW - a xylem brand

  • How & When We Measure Turbidity

    Turbidity, along with Suspended Solids, is a way of measuring the clarity of a body of water, and how many particles are affecting it. The difference is that while Suspended Solids describes the density of the materials in the water, Turbidity describes how those materials affect light passing ...


    By Partech (Electronics) Ltd.

  • Turbidity tubes for drinking water quality assessments

    Turbidity tubes have been considered to be the field method of choice for drinking water quality monitoring in resource-limited contexts because of their relative simplicity and low cost in comparison with conventional (nephelometric) turbidimeters. These tubes utilise the principle of visual extinction of a submerged target for turbidity determination and were therefore thought to be subject to ...


    By IWA Publishing

  • New MANTECH Turbidity Flow Cell and Method - Case Study

    Man-Tech’s Turbidity Flow Cell and Method only requires calibrations every 1-3 months. Man-Tech’s automated turbidity has many benefits that make it work well: the sample is mixed to ensure homogeneity, excellent and stable calibrations, easy to add additional parameters including pH, conductivity, alkalinity, colour, and flouride, among other reasons. Why does ...


    By MANTECH INC.

  • Exclusive: Introducing the new TurbiTechw2 D-ISO turbidity sensor

    We have some exciting news and you are the very first to read about it! This 2nd – 3rd November at the WWEM Show in Telford we will be launching the latest sensor in ...


    By Partech (Electronics) Ltd.

  • Relationship between turbidity and total suspended solids concentration within a combined sewer system

    This article confirms the existence of a strong linear relationship between turbidity and total suspended solids (TSS) concentration. However, the slope of this relation varies between dry and wet weather conditions, as well as between sites. The effect of this variability on estimating the instantaneous wet weather TSS concentration is assessed on the basis of the size of the calibration dataset ...


    By IWA Publishing

  • 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

  • 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 ...


  • How & Why We Measure Suspended Solids

    In case you weren’t sure, Suspended Solids is simply a density measurement used to describe exactly how much waste sludge and particles are in the water, and is measured in milligrams per litre (mg/l), grams per litre (g/l) or percentage solid (%). 1000mg/l = 1g/l = 0.1%. It is used to calculate the amount of material, or load, in a wastewater or industrial system. Suspended Solids ...


    By Partech (Electronics) Ltd.

  • How the LISST-ABS works

    INTRODUCTION: Sequoia’s Acoustic Backscatter Sensor, LISST-ABS is designed to measure suspended sediment concentration at a point. Unlike ADCP’s which may record similar backscatter strength at multiple points along the acoustic beams (‘ranges’), the LISST-ABS  only reports backscatter signal strength at a single point about 5 cm from the transducer. The ...


    By Sequoia Scientific, Inc.

  • Portable UVT Reigns Supreme - Case Study

    It may be small, but my word it’s effective. One of the newest products into the Partech catalogue, the Sensorex Portable UVT, has already proved its worth in challenging conditions within demanding industry trial. The convenient, user-friendly transmittance instrument with its world leading UV-C LED technology was tested alongside more expensive and unnecessarily complicated equipment ...


    By Partech (Electronics) Ltd.

  • Light attenuation – a more effective basis for the management of fine suspended sediment than mass concentration?

    Fine sediment continues to be a major diffuse pollution concern with its multiple effects on aquatic ecosystems. Mass concentrations (and loads) of fine sediment are usually measured and modelled, apparently with the assumption that environmental effects of sediment are predictable from mass concentrations. However, some severe impacts of fine sediment may not correlate well with mass ...


    By IWA Publishing

  • Modeling settling tanks for water treatment using computational fluid dynamics

    A computational fluid dynamics model is presented for the calculation of the flow, suspended solids, and tracer concentration fields in the settling tanks of the water treatment plant of Aharnes, an important component of the water supply system of the greater area of Athens, Greece. The model is applied to investigate the expected negative effect of the wind on the hydraulic and settling ...


    By IWA Publishing

  • Southern water MLSS case study

    Southern Water has recently installed eight new Partech Turbi-Tech 2000LA systems at its East Worthing water treatment works for measuring Mixed Liquor Suspended Solids (MLSS) in the aeration tanks. This new installation takes Partech’s Turbi-Tech 2000LA and 7200 Series Monitor a step further in becoming the standard instrument for measuring mixed liquor throughout the whole of Southern ...


    By Partech (Electronics) Ltd.

  • TitraSip automated pipetting improves accuracy and precision over manual pipetting case study

    MANTECH INC. is a leading manufacturer of automated multi-parameter, titration, BOD and COD laboratory instruments. MANTECH developed the first automated titrator in the world to include automated pipetting capability. In our short history, there are already >1000 TitraSip’s in daily use in accredited laboratories around the globe. The software controlled TitraSip module has proven to ...


    By MANTECH INC.

  • The spectral absorption coefficient at 254 nm as a real-time early warning proxy for detecting faecal pollution events at alpine karst water resources

    Because spring water quality from alpine karst aquifers can change very rapidly during event situations, water abstraction management has to be performed in near real-time. Four summer events (2005–2008) at alpine karst springs were investigated in detail in order to evaluate the spectral absorption coefficient at 254 nm (SAC254) as a real-time early warning proxy for faecal pollution. For the ...


    By IWA Publishing

  • Waterquality in irrigation canals and boreholes - Greece

    Background Kavala is located in the North East of Greece, 680 km from the capital Athens. The population of the prefecture of Kavala is around 85,000 people. The River Nestos which flows through this prefecture is very important for the agriculture of the area. To allow for a fair distribution of the water for irrigation purposes, a number of Boreholes and canals have been established. The ...

  • AquaLab Analyzer provides real-time phosphorus measurement in Everglades

    When it comes to ecosystem sustainability, Florida is no backwater. The South Florida Water Management District, which includes the unique Everglades habitat, had a major challenge. The EPA and various governmental authorities have defined limits for many water quality parameters to support a water body’s designated use. Any physical, chemical or biological condition that threatens the designated ...

  • Surface Ocean Acidification studies using Ships Of Opportunity

    Ships of Opportunity Ships of opportunity (SOOP) are used as a platform for cost-efficient collection of environmental data, Ferrybox. The SOOP network operated by NIVA cover the majority of the Norwegian coastline (from Germany (54N ) in the South to Svalbard (78N) in the North. This network is used in the national OA monitoring program. Globally, SOOPs are used for pCO2 measurements and ...


    By Franatech GmbH

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