suspended solids meter Articles

  • Accuracy of different sensors for the estimation of pollutant concentrations (total suspended solids, total and dissolved chemical oxygen demand) in wastewater and stormwater

    Many field investigations have used continuous sensors (turbidimeters and/or ultraviolet (UV)-visible spectrophotometers) to estimate with a short time step pollutant concentrations in sewer systems. Few, if any, publications compare the performance of various sensors for the same set of samples. Different surrogate sensors (turbidity sensors, UV-visible spectrophotometer, pH meter, conductivity ...


    By IWA Publishing

  • Attenuation of an ultrasonic beam by suspended particles and range of acoustic flow meters in sewer networks

    Ultrasonic flow meters are commonly used in wastewater management. Under certain circumstances, a reduction in the flow meter range may occur and cause significant error in the flow rate measurement. Attenuation due to suspended particles is one of the phenomena capable of reducing the flow meter range. The present paper examines attenuation resulting from re-suspended pond sediment over a wide ...


    By IWA Publishing

  • Stormwater Solids Reduction for NPDES Permits

    Finally obtaining a National Pollution Discharge Elimination System (NPDES) Permit is often a relief but is by far not the end of the story. Meeting the requirements of that permit often proves to be quite difficult and stiff fines are freely doled out to those who fail to meet regulatory limits. For one Midwest jet propulsion manufacturing facility, the issue of total daily solids discharge ...

  • TDS and EC meters for hydroponics explained

    As technology advances, questions inevitably follow. Due to the rapid growth of the hydroponics and indoor gardening industry, it is important for growers to be familiar with the technology, in this case instrumentation. There is a myriad of nutrients and fertilizers available to help you cultivate the best possible plant yields, but what is consistent among all of them is they need to be ...


    By HM Digital, Inc.

  • Wastewater Plant Relies on Thermal Flow Meter for Co-Gen Power Gas Blending Process

    The Rahway Valley Sewerage Authority (RVSA), which operates a large wastewater treatment plant in New Jersey, embarked on a green co-generation waste-to-energy project to power a portion of its operations. The plant performs primary, secondary, tertiary and sludge treatment processes in serving over 250,000 residential customers and 3000 industrial and commercial customers in a 40-plus square ...


    By Modern Pumping Today

  • Pilot-scale studies on the treatment of tannery effluents by electroflotation

    A pilot-scale electroflotation system with a treatment capacity of 0.8 m³ per hour has been designed and built. The system is equipped with a conditioning tank, a rectifier, flow meters, an energy meter and pumps. Iron, aluminium and titanium coated with oxides of tantalum, ruthenium and iridium were used as electrodes. The system was installed within the premises of the Common Effluent Treatment ...


    By Inderscience Publishers

  • Water testing 101: TDS

    According to Wikipedia, total dissolved solids (TDS) is defined as “the combined content of all inorganic and organic substances contained in a liquid that are present in a molecular, ionized or microgranular suspended form.” The article goes on to state that “total dissolved solids are differentiated from total suspended solids (TSS) in that the latter cannot pass through a ...


    By HM Digital, Inc.

  • The performance of UASB reactors treating high-strength wastewaters

    In the study reported here, the authors investigated the influence of hydraulic loading rate, organic loading rate, and recycle rate on the performance of upflow anaerobic sludge blanket (UASB) reactors treating high-strength wastewaters. For this purpose, they used two identical reactors. The removal rates for chemical oxygen demand (COD), total kjeldahl nitrogen (TKN), total phosphorus (TP), ...

  • What is TDS?

    Answer: Total Dissolved Solids (TDS) is a measure of the combined content of all the inorganic and organic substances such as mobile charged ions, minerals, salts or dissolved metals in a volume of liquid. Normally TDS is used in water testing, where TDS is defined as anything present that is not pure water (H2O) molecule or suspended ...


    By Camlab Limited

  • Breweries - Case Study

    Problem with high wastewater charges because of high COD and suspended solids readings, which were dramatically reduced using BioAmp. Thwaites Brewery Daniel Thwaites is a large independent Brewery based in Blackburn, UK. The Brewery is located in the centre of the city and neighbours commercial, industrial and residential areas. The Brewery operation includes ...


    By NCH UK Ltd

  • Fluoridation: A Better Way? case study

    Ffficient, cost-effective addition of fluoride to drinking water is increasingly important as the U.S. EPA and Department of Health and Human Services contemplate additional nationwide standards for fluoride injection. A relatively new company, Integrity Municipal Services (IMS), has developed a new design for sodium fluoride saturator and feed systems and has successfully applied it at customer ...


    By Integrity Municipal Systems

  • Gravity self-backwashing filters

    The filtration of make-up and side-stream water in closed cooling circuits, operated through cooling towers, is a fundamental step to ensure safe and continuous operations in a power plant. Water - required in large amounts for this application - should not be wasted, and the potential damages deriving from a poor treatment must be avoided at all cost. BONO ARTES has developed a technical ...


    By Artes Ingegneria SpA

  • Biologically and Chemically Enhanced Clarification for Improved Treatment of Wet-Weather Flows

    The Milwaukee Metropolitan Sewerage District (MMSD) conducted demonstration testing in 2005 to evaluate high-rate chemically enhanced clarification (CEC) followed by ultraviolet (UV) disinfection, for the treatment of wet-weather flows at MMSD’s two wastewater treatment plants (WWTPs). High-rate CEC—surface overflow rates greater than 20 gallons per minute (gpm) per square foot (ft2) [85 cubic ...

  • Wash Water Questions and Answers

    When the subject of Wash Water Recycling comes up there are many questions that can arise. The following are a few that are frequently asked are: Will it have an odor? What will its’ clarity be? How much is recycled? The above questions seem very basic but can at times create a complex response because of ...


    By ESD Waste2Water, Inc.

  • Water Quality Benefits of Grass Swales in Managing Highway Runoff

    ABSTRACTGrass swales are a vegetated stormwater management technology that can remove surface runoff contamination through sedimentation, filtration by the grass blades, infiltration to the soil, and likely some biological processes. Two full-scale grass swales in the median of a four-lane highway were monitored during 18 storm events to characterize the overall performance of grass swales as a ...

  • Quarry dewatering compliance

    Louis W. Bray Construction installed a Greyline Area-Velocity Flow Meter in 2009 to meet Ministry of Environment regulations. Their permit stipulated effluent limits plus monitoring, sampling and flow measurement of wastewater discharged from the site to the South Raisin river. The Ontario Water Resources Act requires flow monitoring for any quarry dewatering greater than 50,000 liters per day. ...


    By Greyline Instruments Inc.

  • Quarry Dewatering Compliance

    Louis W. Bray Construction installed a Greyline Area-Velocity Flow Meter in 2009 to meet Ministry of Environment regulations. Their permit stipulated effluent limits plus monitoring, sampling and flow measurement of wastewater discharged from the site to the South Raisin river. The Ontario Water Resources Act requires flow monitoring for any quarry dewatering ...


    By Greyline Instruments Inc.

  • Meet the Partech Distributor – Stig Wahlström

    This month we spoke to Hannu Toroi at our distributor Stig Wahlström in Finland to ask his opinion on Partech, take a look at what he had to say… How long have you been affiliated with Partech? We first became involved with Partech in 2012. We were drawn to Partech water instruments because they complement other wastewater devices used in treatment ...


    By Partech (Electronics) Ltd.

  • TDS: `The Done Sale`

    Many Americans have at least some concern that their tap water is problematic, yet they don’t know where to begin. The TDS, or total dissolved solids, meter can be the first step in determining if there’s a problem. The term TDS has long been well-known in the water treatment industry, yet still has not penetrated the mass consumer market. However, by hearing your brief explanation, ...


    By HM Digital, Inc.

  • APEX hose pumps replace PC pumps for reliable bentonite pumping at South African waterworks

    A major waterworks in South Africa is benefitting from the installation of Bredel APEX15 hose pumps from Watson-Marlow Fluid Technology Group. The APEX pumps have been preferred over progressive cavity (PC) pumps ...

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