Density Monitoring Articles

  • Determination of Flow Rates in part-filled Applications using the Radar Method

    Introduction The radar measurement method plays an increasingly important role in the water and wastewater field. This is particularly reflected by the "Metering outside of the medium" trend. Flow measurement using radar which enables contactless measurements thus becomes a major focal point. It features a wide range of applications and hence is useful as permanent measurement system for ...


    By NIVUS GmbH

  • Tech Note: Flare Gas Measurement Innovation; Retain Flow Metering Accuracy Even if Gas Composition Changes

    It’s a fact oil wells almost always produce natural gas along with the petroleum. Nine times out of ten, the excess gas (typically hydrocarbons) is flared off or simply vented as-is during upset conditions in the process. The environmental impacts of “flaring” this excess gas into our atmosphere has resulted in government regulations like 40 CFR Part 60 Subpart OOOO (also ...


    By Sierra Instruments, Inc.

  • Oxocarbon Salts for Fast Rechargeable Batteries

    Oxocarbon salts (M2(CO)n) prepared through one-pot proton exchange reactions with different metal ions (M=Li, Na, K) and frameworks (n=4, 5, 6) have been rationally designed and used as electrodes in rechargeable Li, Na, and K-ion batteries. The results show that M2(CO)5/M2(CO)6 salts can insert two or four metal ions ...


    By SusChem

  • A High-Performance Base-Metal Approach for the Oxidative Esterification of 5-Hydroxymethylfurfural

    Exploring high-performance base-metal approaches for the sustainable production of chemicals from biomass is presently attracting immense interest and is truly important to promote their industrialized application. Herein, CoOx-N/C and α-MnO2 were combined as a base-metal catalyst that can achieve high yields of furan-2,5-dimethylcarboxylate (FDMC, 95.6 %) for ...


    By SusChem

  • Reducing Costs of Steam Flow Measurement

    Traditionally, steam flow has been measured with a differential pressure device. This is typically an orifice plate. However, such devices are inherently volumetric flow measurements. As we have discussed in previous blog posts, changes in pressure and temperature ...


    By Sierra Instruments, Inc.

  • World famous watch manufacturer chooses Bramidan as time matters - Case Study

    Swiss leader watch designer and manufacturer TISSOT has taken advantage of the new expansion of its premises to invest in a fully automatic Bramidan channel baler to optimize waste handling procedures. For many years, Tissot had been using a 20m3 waste compactor to handle all types of waste fragments. Once full, the compactor used to be sent to an incinerator located 10 km away from the factory. ...


    By Bramidan Balers

  • From macroplastic to microplastic: Degradation of high‐density polyethylene, polypropylene, and polystyrene in a salt marsh habitat

    As part of the degradation process, it is believed that most plastic debris becomes brittle over time, fragmenting into progressively smaller particles. The smallest of these particles, known as microplastics, have been receiving increased attention because of the hazards they present to wildlife. To understand the process of plastic degradation in an intertidal salt marsh habitat, strips ...


    By John Wiley & Sons, Ltd.

  • 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

  • Antibiotics in groundwater under locations with high livestock density in Germany

    Antibiotics are deployed in large quantities both in human and in veterinary medicine. Studies show that antibiotic residues occur in the environment (e.g. soil and surface waters). In some cases they were also detected in ground and drinking water. However, the degree of groundwater pollution by antibiotic residues from livestock farming is unknown. Therefore, the federal environment agency ...


    By IWA Publishing

  • REDmeters - Blue Paper

    REDmeters: Abstract The process of controlling and the cost of monitoring slurries in many industries are normally accomplished using various continuous mass flow systems. These types of systems usually contain a magnetic flow meter and a line density meter. There is inherent cost associated to these systems due to the inaccurate nature of these meters. Some meters on the market boast up to ...


    By REDmeters

  • Polishing of treated palm oil mill effluent (POME) from ponding system by electrocoagulation process

    As the ponding system used to treat palm oil mill effluent (POME) frequently fails to satisfy the discharge standard in Malaysia, the present study aimed to resolve this problem using an optimized electrocoagulation process. Thus, a central composite design (CCD) module in response surface methodology was employed to optimize the interactions of process variables, namely current density, ...


    By IWA Publishing

  • Results from Australia: Forest Road landfill life extended +50% with TANA E520 compactor

    Optimizing landfill life by choosing the most efficient landfill compactor is giving Forest Road landfill more operation years. "Waste density in completed cells will now be increased from approximately 800 kg/cubic meter to 1200-1400 kg/cubic meter under standard operating conditions", says Jon Beckett, Waste Services Manager. ...


    By Tana Oy

  • Influence of wastewater disinfection on densities of culturable fecal indicator bacteria and genetic markers

    The US Environmental Protection Agency has proposed the use of quantitative polymerase chain reaction (qPCR) as a rapid alternative analytical method for monitoring recreational water quality at beaches. For qPCR to be considered for other Clean Water Act purposes, such as inclusion in discharge permits and use in Total Maximum Daily Load calculations, it is necessary to understand how qPCR ...


    By IWA Publishing

  • Ultrasonic density measurement of uranium loaded organic phase in solvent extraction process

    The application of ultrasound technique in density determination of uranium loaded organic phase in solvent extraction can provide a unique solution for online density monitoring of process streams. Earlier various authors have investigated the density measurement of liquid by single ultrasound frequency. In general standard reference liquid (having low viscosity and density) is used for ...


    By Inderscience Publishers

  • Fluctuation of densities of bacteriophages and Escherichia coli present in natural biofilms and water of a main channel and a small tributary

    Fluctuation of bacteriophage and Escherichia coli densities in naturally developed riverbed biofilms were investigated for a 1-year period. E. coli ranged from 1,500 to 15,500 most probable number (MPN)/100 mL and from 580 to 18,500 MPN/cm2 in the main channel in the river water and biofilms, respectively. However, the fluctuations were much greater in the ...


    By IWA Publishing

  • Daniel Casey: Exploring a ‘little star’ on Earth

    Written by Leda Zimmerman.You can read the original new in MIT NewsIn 2010, after a decade of meticulous preparation, Daniel Casey and an MIT team finally ran their experiment. The world’s largest laser struck a millimeter-sized target, and in less than a second, it was ...

  • 3. The Regge Basin

    In this chapter we will introduce the river, its basin and the river renaturalization project. Our case, the Regge River, is the most important river in the western part of the Twente region. Numerous smaller rivers and creeks flow into this river. In the periods 1848-1879, 1894-1913 and 1925-1935 the Regge suffered from piecemeal canalization efforts. This ...


    By IWA Publishing

  • Eldan Recycling introduces a system for processing of mining tyres

    The Eldan Recycling mining tyre recycling system can turn the huge waste mining tyres into reusable rubber granulate, powder and clean steel wire… Eldan Recycling delivered and installed its first complete tyre recycling plant back in 1991 and has since then developed and optimised the process to obtain the best possible purity of the rubber granulate. Over 200 complete systems and ...


    By Eldan Recycling A/S

  • Portable IR analyzers: the ideal measurement solution for biofuels blend quality and wastewater testing

    Two challenges facing the biofuels industry involve compliance with blend quality standards and wastewater regulations. According to a study done by the National Renewable Energy Laboratory, 1 the chief problem found with biodiesel blends was inaccurate blend ratios. Retail customers and fleet managers do not typically worry about whether the blend ratio is correct until a problem occurs. For ...


    By Spectro Scientific

  • Harnessing The Power Of Microbes

    University researchers are advancing both the understanding and scalability of a biological process where bacteria living under anaerobic conditions consume organic waste and generate electrons and protons that are tapped for electricity production.IMAGINE a self-sustaining battery that never runs out of juice. While the notion may sound far-fetched, Dr. Leonard Tender at the Naval Research ...


    By BioCycle Magazine

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