dose rate meter Articles

  • Sizing and Selecting the Proper Metering Pump: Part 1 of 2

    A typical agriculture or process application can consume large amounts of chemicals during daily operations. While the volumes may be large, though, they must also be very precise, with exact amounts delivered according to strict injection schedules. The pressures—from very high to very low—that the chemicals are injected at must also be governed precisely. This demand for ...


    By Modern Pumping Today

  • Controlling the addition of Chlorine into a Process

    There are several methods for controlling the addition of chlorine into a process. These methods include flow proportional injection, ORP (oxidation reduction potential) or a residual chlorine analyzer. Each method measures a different process characteristic. Depending on the specific type of process being controlled, there generally is a best choice for controlling the injection of either ...


    By Walchem, Iwaki America Inc.

  • Purifying wastewater with Peristaltic Industrial Tube Pumps

    The Challenge A leading multi-national electronics company with numerous plants across South Korea has for many years been using Metering pumps for dosing Aluminium Sulphate in their wastewater treatment facilities. The plant engineers approached the local Verderflex distributor Dong-Il Ent Co Ltd, looking for a solution to the following problems ...

  • Comparison of centrifuge and belt press for compressible digested sludge after thermal hydrolysis

    ABSTRACT Historically it has been shown on many projects that centrifuges can outperform belt presses in dewatering digested sludge. However results from a number of projects where sludge has been treated before digestion with Cambi thermal hydrolysis process (THP) have shown good results for belt press dewatering – generally greater than 30% DS. The authors propose that the main mechanism in ...


    By Cambi AS

  • Watson-Marlow peristaltic pumps in breakthrough application - Case Study

    South West Water is using a peristaltic pump from Watson-Marlow Fluid Technology Group for dosing coagulant into raw reservoir water for purification purposes. It is thought to be the first time peristaltic technology has been used on a coagulant application, certainly within the southwest region. Originally the plant, near Falmouth in Cornwall , employed two conventional ...

  • Reduction and control of total Nitrogen in a cheese factory case study

    Treatment system enhancement using Microcat - DEN Denitrifiers - BSE 099 Problem The wastewater treatment system receiving wastewater from a cheese factory in the EU has difficulty meeting total nitrogen effluent discharge requirements. The wastewater flow rate is 2000 cubic meters per day. The treatment system consists of two sequencing batch reactors (SBRs) ...


    By Bioscience, Inc.

  • Noise Measurement

    Definitions Threshold and criterion levels The threshold level is the A-weighted sound level at which a personal noise dosimeter begins to integrate noise into a measured exposure. For example, if the threshold level on a sound level meter is set at 80 decibels (dB), it will capture and integrate into the computation of dose all noise in the employee's hearing zone that equals or exceeds 80 dB. ...


  • Evaluation of Inactivation of Cryptosporidium parvum Oocysts in Recreational

    Purpose: To determine the ability of the Hanovia UVP 61 water disinfection system to nactivate Cryptosporidium parvum oocysts suspended in recreational (water park) water.Methods and materials:Test water: The water used for this test was from the Adventure Island water park, Tampa, Florida. A 200 gallon (750 L) volume had been  collected on October 24, 1999, and delivered to Clancy ...

  • Mono nov working hard with zok international

    These cleaning solutions require delicate handling i.e. pumping, mixing and filtering to produce a pure solution with no aeration or foaming, which would interfere with the accurate metering and dosing of the chemicals involved. The Compact C progressing cavity pump, ith its gentle shearing action and capacity for handling viscous or difficult to handle fluids, forms a central part of the ...


    By NOV Mono - Mono Pumps Ltd

  • Use of anaerobic respirometers for measuring gas production in toxicity and treatability tests

    Introduction Anaerobic processes are used widely for stabilizing domestic sludges, treating industrial wastes, and converting biomass to methane. These processes frequently receive complex organic chemicals that are classified as being hazardous or toxic. Despite advances in our understanding of anaerobic reactions, there is limited information regarding the impact of toxic chemicals on the ...


    By Challenge Technology

  • Peristaltic Pumps play key role in rectifying the pH balance of mine water

    After decades of uncontrolled industrial (mining) activities, water supply is under serious threat. Studies show that acid water levels in the country's mines are rising at a staggering average rate of 0.59 m/day. The water situation is in fact threatening the population’s survival. At the heart of resolving this problem are the treatment of water and wastewater. This article looks at ...

  • A Guide to Noise Measurement Terminology

    There are 100s of different acoustic parameters that can be used during your noise measurements. Each parameter can tell you something different the noise you’re monitoring. How do you remember what all this noise measurement terminology means and what it does? We’ve already covered ...


    By Cirrus Research plc

  • Uptown shopping center

    ChitoVan Chitosan Lactate Cartridge Pretreatment and Sand Filtration Urban development and redevelopment present a host of challenges - not the least of which is managing site stormwater runoff. In a northern suburb of Vancouver Island’s beautiful city of Victoria, BC the stormwater challenge was met and bested through the application of both passive and active chitosan stormwater ...


    By Dungeness Environmental

  • Emerging Trends In UV Disinfection For Water Treatment

    Introduction The UV disinfection industry has experienced tremendous growth over the last 20 years.  The development of new UV technologies over this period has been a perfect example of an industry investing to meet market demand – in this case demand for an effective, low cost, and environmentally friendly disinfection technology.  The acceptance of UV disinfection at water plants ...

  • State Fish Hatcheries and Invasive Species Don’t Mix

    INTRODUCTION The Vermont Fish and Wildlife Department is responsible for the protection and management of the state’s fish populations. Cultured fish are stocked in natural and manmade areas that are excellent for growth and survival but have little or no spawning habitat. Other stocking areas include natural water bodies where spawning and nursery habitats have been destroyed or isolated from ...

  • 4.5 MWe Refuse Derived Fuel to Energy Plant Case Study

    This 4.5 MWe Biomass Power Plant is one of the turnkey products of Biomass Power. The plant has a capacity of 24 MW thermal and rated at 4.5 MWe producing 35,476MWh of green electricity per year, 100% of which is exported to the grid. The fuel used is segregated biomass from a commercial and industrial waste collection business. The fuel is produced by removing some of the recyclable material ...


    By Biomass Power Limited (BPL)

  • Lap of Luxury

    In 2007, the Malibu Beach Inn underwent a multimillion-dollar renovation that included a new onsite system to comply with regulations. Situated on Billionaire’s Beach in downtown Malibu, Calif., the 47-room hotel abuts the Pacific Coast Highway, one of the busiest thoroughfares in the nation. The designer of the onsite system, John Yaroslaski, P.E., of Ensitu Engineering Inc. in Morro Bay, ...


    By Bio-Microbics, Inc.

  • Future Proofing and Pumping Technology

    Untitled Document Now that the dust of the AMP 4 round has settled, the UK 's water and sewerage companies are underway with their plans to maintain, upgrade and develop their asset base over ...

  • Optimisation of Binder and Catalyst Addition: Steel Castings Pty Ltd

     Steel Castings Pty Ltd installed a computerised ‘Autocat’ system to control the addition of catalyst and binder for the production of sand moulds. The finer control of addition rates has significantly reduced the number of reject moulds and achieved annual savings of $21,780 from reduced raw sand and chemical costs. Background Steel Castings Pty Ltd operates a foundry ...


  • Controlling scale deposits in the pulp & paper industry

    The pulp and paper industry is one of the heaviest users of water within the North American industrial economy, requiring on average 54 cubic meters of water per metric ton of finished product.  As water is used in nearly every part of the manufacturing process, accumulation of scale is a phenomenon that can occur in all pulp and paper making processes. This occurs even with the purest water ...

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