Density Monitoring Articles

  • 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

  • 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

  • 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

  • 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

  • Sydney´s Sustainable House

    Introduction Sustainability or 'sustainable development' has become a term which is frequently applied to land use and social planning and resource issues. Sustainability is a concept which draws attention to development practices which can degrade natural ecosystems and deplete natural resources. If development is defined broadly to include any cultural activity, then sustainable development may ...


  • 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

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