turbidity control Articles

  • Technical Focus: Turbidity as Control for Primary Settlement

    Turbidity is a very useful tool when regarding control within the primary settlement stage of water treatment. By utilising turbidity as a control variable during this stage of the process you  can enable a more rapid response to variations in load  and provide early warning  to operators of equipment malfunction before it’s too late; allowing for immediate action to be taken ...


    By Partech (Electronics) Ltd.

  • 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 ...

  • A Treatise on Turbidity and TSS

    When two distinct physical parameters are used interchangeably, an intimate understanding of both is in order to know when this is justifiable.  Two such parameters are turbidity and total suspended solids.  In many industries today the concentration of total suspended solids is of utmost importance to quality control and process optimization.  However, the measurement most often employed is ...


    By Orival, Inc.

  • Turbidity Measurements in Drinking Water, Effluent Discharges and Coagulant Controlling

    This month at Partech Water Instruments we’re talking about our turbidity sensors—fantastic to use as an environmental indicator. So how can they be used? We’re here to tell you about turbidity sensors being utilised for drinking water, effluent discharges and coagulant controlling. Turbidity Sensors and Drinking Water Turbidity sensors ...


    By Partech (Electronics) Ltd.

  • 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 ...


    By IWA Publishing

  • Research on PWM applied in water turbidity measurement

    In this paper, three common measuring methods for the principles of water turbidity, namely, scattering, transmission and the ratio method are introduced. A method combined with modulation and demodulation techniques based on pulse width modulation (PWM) pulse for turbidity measurement using light intensity modulation is proposed. The experimental system that is, the realizing circuit of ...


    By IWA Publishing

  • 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

  • Efficiency of a turbidity-based, real-time control strategy applied to a retention tank: a simulation study

    This paper compares several real-time control (RTC) strategies for a generic configuration consisting of a storage tank with two overflow facilities. Two of the strategies only make use of flow rate data, while the third also introduces turbidity data in order to exercise dynamic control between two overflow locations. The efficiency of each strategy is compared over a wide range of system ...


    By IWA Publishing

  • Partech Water Instruments Case Study: Landfill Turbidity and Dosing Control - Case Study

    Set in one of Devon’s most beautiful river valleys Deep Moor is a haven for aquatic wildlife and therefore the site needs to be careful not to have any detrimental effects on the environment. Partech have been working closely with Greenacre Pumps of Newton Abbot in order to provide an extremely reliable and cost-effective dosing system. The best things about Partech’s Turbidity and ...


    By Partech (Electronics) Ltd.

  • Modelling a turbidity current in Soyang reservoir (Korea) and its control using a selective withdrawal facility

    Persistent turbidity in reservoirs and their downstream after flood events is one of most important environmental issues in Korea. Recently, modification of withdrawal facility and installation of a new selective withdrawal structure (SWS) have been implemented for the mitigation of downstream impact and sediment loading into water treatment facilities. This study was to explore the ...


    By IWA Publishing

  • Effects of clay mineral turbidity on dissolved organic carbon and bacterial production

    Effects of inorganic turbidity from clay minerals on allochthonous dissolved organic matter (DOM), its consumption by bacteria and photodegradation by solar radiation were investigated. In controlled experiments of adsorption of DOM of six specific leaf leachates onto montmorillonite, kaolinite, and clay extracted from drainage basin soil, up to 31 mg C of leaf leachate was adsorbed g clay–1. A ...


    By Springer

  • Dynamic soft sensors for detecting factors affecting turbidity in drinking water

    Effective monitoring of water quality is critical for water safety. In particular, online monitoring based on modeling is useful in several applications such as process assessment, hazardous event detection or common fault diagnostics in the water processes. Soft sensors have lately established themselves as a good alternative for different tasks of process control such as the acquisition of ...


    By IWA Publishing

  • Removal of Giardia spp. and Cryptosporidium spp. from water supply with high turbidity: analytical challenges and perspectives

    Giardia and Cryptosporidium species are a serious problem if present in water supplies. The removal of these protozoans and the adaptation of existing protocols are essential for supplying drinking water to developing countries. Considering this, the aim of this study is to evaluate, on a bench level, the removal of Giardia spp. cysts and of ...


    By IWA Publishing

  • Adaptive control of algae detachment in regulated canal networks

    Open-channel distribution networks are subject to algal developments that can induce major disturbances such as clogging of hydraulic devices (pipes, weirs, filters, flow meters). Flushes can be used as a strategy to manage these algae developments. A flush is carried out by increasing the hydraulic shear conditions using hydraulic control structures of the canal network. In response to the ...


    By IWA Publishing

  • Control of disinfection by products formation potential by enhanced coagulation

    Abstract Jar-test experiments were conducted to study enhanced coagulation effectiveness in removal of disinfection by products (DBPs) from Zayandehrud River at Isfahan Province-the center part of Iran- in 2004. In this study, the removal of suspended and colloidal particles and natural organic matter (NOM) at various coagulant doses and coagulation pHs was assessed through raw and treated ...

  • Air/water cleaning for the control of particulate fouling

    Fouling of feed spacers in spiral wound membrane elements due to particulate fouling and biofouling is one of the main operational problems of nanofiltration or reverse osmosis membrane plants. Removal of particulate fouling from spiral wound membrane elements is investigated using frequent air/water cleaning (AWC). In a pilot setup two spiral wound elements were operated in parallel and were fed ...


    By IWA Publishing

  • On-Line Nitrate/Nitrite Probes for BNR Process Control

    ABSTRACTReal time nitrogen monitoring plays an increasingly important role for the successful biological nutrient removal at wastewater treatment plants. Though traditionally dissolved oxygen has been the main process control parameter a greater understanding of the biological mechanisms and process conditions like nitrite/nitrate concentrations to achieve lower effluent values becomes necessary, ...

  • National instruments features Watertectonics` Waveionics user interface and control system

    Using National Instruments products like LabVIEW and Compact FieldPoint Controllers, WATERTECTONICS has developed a user interface for the WaveIonics electrocoagulation system that is flexible, automated, and robust. With the tight integration between NI hardward and software, WATERTECTONICS was able to test coding extensively on a PC before deploying it to a system. Plus, it was easy to adapt ...


    By Water Tectonics, Inc.

  • Control of the phytoplankton distribution in the Strait of Gibraltar by wind and fortnightly tides

    CTDefluorescenceeturbidity profiles from two surveys conducted in June and September 1997 were examined in order to evaluate the influence of the predictable fortnightly (spring/neap) tidal cycle and the less predictable wind on the phytoplankton distribution in the Strait of Gibraltar. The injection of the nutrient-rich North Atlantic Water (NACW) in the Atlantic inflowing current is associated ...


  • Optimal strategy for algae control in potable water treatment facilities

    This paper presents both a current review of the state-of-the-art in algae removal, and an experimental study of algae removal in potable water supply. Established techniques were investigated by jar-testing on surface raw water samples derived from a lowland river, with the dominant species of algae being Scenedesmus sp (a green algae). These tests were conducted both in isolation and in ...


    By Inderscience Publishers

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