Grinding Equipment Articles

  • What`s Hiding in Your Waste Piles?

    In over 25 years in the grinding and recycling industry, we’ve learned that there’s always more than meets the eye in a pile of waste materials. Whether it’s a pile of pallets or household garbage, there’s some good and some bad hiding under the surface. It's there if you know how to find it. You can find it with the right industry knowledge, the right equipment, ...


    By Rotochopper, Inc.

  • Refractory materials grinding-Corundum alumina balls

    Refractory materials Refractory refers to inorganic non-metallic materials whose temperature is above 1580 Celsius refractoriness. It includes natural ore and a variety of products made by a certain process with a certain purpose. Refractory materials enjoy a good mechanical behavior under high temperature, good volume stability, being the key material for a variety of high temperature equipment ...


    By Zibo Union Co.

  • Particle Size Reduction Strategies

    Grinding strategies are driven by business priorities, feedstock types and quantities, compost mix ratios, product markets, sales seasonality and the weather. Particle size reduction is an important organic materials handling step that enhances the biological or chemical process by optimizing the particle surface area-to-volume ratio. Grinders, shredders and chippers are used for size ...


    By BioCycle Magazine

  • Tire Shredders: An Introduction

    How Does a Tire Shredding Machine Work? Tire shredding is a very common way of preparing scrap tires for disposal or recycle. In order to dispose of tires in a landfill, they must be shredded to various sized chips. The size required depends on the state or area you live in. Tire shredding is also used for recycling tires; crumb tire or tire mulch can be reused to create surfaces on ...


    By ECO Green Equipment

  • Tech Tip: SeaFET/SeapHOx pH Pre-conditioning

    The SeaFET/SeapHOx must condition to the deployment environment for at least 48 hours before pH data is considered reliable. The Shallow SeaFET’s external pH sensor must be powered and exposed to the deployment site’s water for 2–5 days before obtaining quality data. You will often see the external pH gradually rise until it meets the internal reference pH within ~0.05 pH after ...

  • Women in safety: one size does not fit all

    Ill-fitting protective clothing and equipment is a critical problem in workplace safety. It deters workers from performing job-related tasks safely and efficiently. This problem is especially reliant for women in safety. More often than not, women who work at sites that require them to wear personal protective equipment (PPE) ‘make do’ with clothing and equipment designed for men ...


    By SafetySmart

  • Pre-processing of imbalanced samples and the effective contribution in fault diagnosis in wastewater treatment plants

    Fault diagnosis by machine learning techniques is of great importance in wastewater treatment plants (WWTPs). A key factor influencing the accuracy of fault diagnosis lies in the imbalance between the sample data in minority classes (i.e. faulty situations) and that in majority classes (i.e. normal situations), which may cause misjudgments of faults and lead to failure in practical use. This ...


    By IWA Publishing

  • Monster 3-shred grinders helps reclaim food bank waste - Case Study

    Multiple entities partner to divert food waste from landfills Problem: Food Composting system must breakdown mixed packaged waste for processing Solution: Low Speed, High Torque JWC 3-SHRED Grinder The statistics surrounding food waste in the United States can only be described as staggering. More than 30 percent of the ...


    By JWC Environmental

  • Native, acidic pre-treated and composite clay efficiency for the adsorption of dicationic dye in aqueous medium

    Environmental applications of composites have attracted the interests of researchers due to their excellent adsorption efficiency for pollutants. Native, HCl pre-treated clay and MnFe2O4/clay composite were investigated as an adsorbent for removal of methyl green from aqueous solution. The adsorption behaviors of dye onto native, HCl pre-treated and composite clays were studied as a ...


    By IWA Publishing

  • Case Study: JWC Grinder saves Las Vegas apartment complex $20,000 in 90 days!

    Problem: Frequent pump malfunctions and clogs causing high maintenance costs Solution: 3-HYDRO Open Channel Sewage Grinder Approaching something the same way repeatedly rarely yields ...


  • Ovivo Double Entry Drum Screens at Yellow River WRF, Gwinnett County, GA – Customer Testimonial

    “We completed the Yellow River WRF Improvements Project in 2012. This project replaced an aging 14.0 MGD conventional activated sludge facility with an advanced 22.0 MGD MBR facility. The MBR facility includes third party submerged fiber membrane for solids separation. The membrane manufacturer required, at a minimum, 2mm screening to protect the .04 micron membrane. We decided to purchase ...

  • Enhanced performance and mechanism of KMnO4 pre-oxidation to coagulation on the removal of the DON and proteins

    Proteins were the main category of the dissolved organic nitrogen (DON) in eutrophicate water sources and posed a threat to the water quality safety and common operation of water plants, while the KMnO4 pre-oxidation and coagulation were the two important ways to control the organics. Intracellular organic matter (IOM) and phycocyanin were chosen as the target DON to study the performance of ...


    By IWA Publishing

  • Pre-event water contributions to runoff events of different magnitude in pre-alpine headwaters

    Precipitation and catchment characteristics of mountainous headwaters can vary largely within short distances. It remains unclear how these two factors determine the contribution of event water and pre-event water to stormflow. We investigated this in five neighboring headwaters with high annual precipitation amounts (>2,000 mm y−1) in a steep pre-alpine region in Switzerland. Rainfall and ...


    By IWA Publishing

  • Impact of pre-treatment technologies on soil aquifer treatment

    This study investigates the impact of pre-treatment options on the performances of soil columns simulating soil aquifer treatment (SAT). For this purpose a conventional activated sludge (CAS) process, a membrane bioreactor (MBR) and vertical flow reed beds were used as single units or in combination before SAT. The influent and effluent from each treatment train were monitored over three ...


    By IWA Publishing

  • UAE’s MISP center accelerates pre-commercial tech development

    Almost three years after launching the Middle East’s first CSP plant, Masdar joined with Masdar Institute to launch late last year the region’s first CSP research and demonstration centre. Masdar Institute Solar Platform (MISP) builds around a set of unique facilities including a 100kW beam-down concentrating tower and its solar field, a hot-oil loop and thermal energy system (TES), ...


    By FCBI Energy

  • Importance of the Pre-charge of Pressure Tanks.

    A pressure tank consists of an air and water chamber that are divided by a membrane. The air in the air chamber is compressed dry air. This so called pre-charge is a very important factor in the operation of a system with a pressure tank. It acts like a spring and stores the energy in a tank that is used to supply pressurized water when the pump is not running. The membrane that separates the air ...

  • Improving the efficiency of Monte Carlo Bayesian calibration of hydrologic models via model pre-emption

    Bayesian inference via Markov Chain Monte Carlo (MCMC) sampling and sequential Monte Carlo (SMC) sampling are popular methods for uncertainty analysis in hydrological modelling. However, application of these methodologies can incur significant computational costs. This study investigated using model pre-emption for improving the computational efficiency of MCMC and SMC samplers in the context of ...


    By IWA Publishing

  • Modelling GAC adsorption of biologically pre-treated process water from hydrothermal carbonization

    Granular-activated carbon (GAC) adsorption of biologically pre-treated process waters from hydrothermal carbonization (HTC) of different materials was investigated. Overall, isotherms showed that most of the dissolved organic substances are strongly adsorbable while the non-adsorbable fractions are small. The equilibrium data were modelled by using five fictive components to represent the ...


    By IWA Publishing

  • Assessment of LID practices for restoring pre-development runoff regime in an urbanized catchment in southern Finland

    This study quantifies the effects of common stormwater management techniques on urban runoff generation. Simulated flow rates for different low impact development (LID) scenarios were compared with observed flow rates during different urban construction phases in a catchment (12.3 ha) that was developed from natural forest to a residential area over a monitoring period of 5 years. The Storm ...


    By IWA Publishing

  • Anomaly pre-localization in distribution–transmission mains by pump trip: preliminary field tests in the Milan pipe system

    In this paper, the reliability of transients due to pump trip as a powerful tool for the pre-localization of anomalies in real pipe systems is tested. The examined pipe system is part of the one supplying the city of Milan, Italy and is managed by Metropolitana Milanese SpA (MM). The characteristics of such a system can be considered as intermediate between those of classical transmission mains ...


    By IWA Publishing

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