Density Monitoring Articles

  • The First Vortex Flow Meter with Apps Wins Innovation Award!

    Thank you to the readers of industry publication, Flow Control Magazine, who voted for Sierra’s InnovaMass 240i/241i iSeries multivariable and volumetric vortex flow meters in Flow Control’s 2016 Innovation Awards. Sierra was awarded an honorable mention. Sierra’s tradition and spirit of innovation ...


    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

  • 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

  • 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

  • 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

  • Beware of Birds - Bill Read looks at the dangers and consequences of birdstrikes and the steps that airports and airside safety providers are taking to reduce the risk

    At 9.15 am on 29 April 2007, a Thomson Fly Boeing 757-200 with 221 passengers on board took off from Manchester airport on a flight to Arrecife, Lanzarote. Seconds after the aircraft had left the ground, two birds were sucked into the aircraft's right engine causing a flameout and black smoke to issue from the Rolls-Royce RB211-535E4 power plant. The pilot continued the takeoff on one engine and ...


    By Scarecrow

  • Productivity and density of belted kingfishers on the Housatonic river, Massachusetts

    Belted kingfishers (Ceryle alcyon) breeding along the Housatonic River (Massachusetts) were studied to determine whether productivity or population density is impaired, in light of the presence of polychlorinated biphenyls (PCBs) in their prey. The study involved: a) characterizing habitat quality; b) identifying kingfisher burrows; c) monitoring breeding pairs from courtship through fledging; d) ...


    By Arcadis

  • Total Stress Probe Determination of Clay Slurry Density

    The progress of sedimentation, self-weight consolidation, and gain in surface strength of a hydraulic clay fill were observed by monitoring the density improvement of the clay slurry with time. A practical method of measuring the in situ slurry density profile with depth is to employ a submersible gamma-source, backscattertype nuclear density gauge. A slurry consolidation test in the laboratory ...


    By ASTM International

  • Heat and Moisture Transfer Characteristics of Compacted Mackenzie Silt

    The heat and moisture transfer characteristics of a silt from the Mackenzie River Valley have been determined in a laboratory investigation. A dual gamma-ray scanner was used to measure the changes in density and volumetric moisture content along the soil samples. The coefficients of soil-water diffusivity under isothermal conditions and under temperature gradients have been obtained. The ...


    By ASTM International

  • Minimum and Maximum Densities of Granular Materials

    Laboratory tests were conducted to determine minimum and maximum densities of arroyo sand, concrete sand, Ottawa sand, and glass beads. Minimum densities were determined by six different methods using two different molds. Maximum density tests were performed using an electromagnetic vibrator producing vertical simple harmonic motion. The vibration parameters investigated were frequency, ...


    By ASTM International

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