pressure sand filter Articles

  • Drinking water treatment, AFM replaces sand in sand filters

    Drinking Water Treatment by AFM, 30% - 80 improvement in sand filter performance Cryptosporidium problem and THM's eliminated. All sand filter will suffer to some degree from bacterial fouling. The alginates excreted by the bacteria cause coagulation of the sand grains which in turn leads to wormhole channeling of water through the filter bed. The worm holes provide a conduit for the ...


    By Dryden Aqua Ltd

  • Seven Ways Your Facility Isn’t Meeting Effluent Regulations and How to Solve Them

    Whether you own, operate, or help manage a municipal or industrial facility that deals with wastewater, it’s important to understand how wastewater treatment can play a significant role in the overall health of your business, especially when it comes to meeting effluent regulations. This is an important part of the wastewater treatment process to consider, as ignoring it could earn your ...


    By SAMCO Technologies, Inc.

  • 100 Simple Ways To Save Water

    To improve water conservation install a rain sensor, it turns off your irrigation when it rains. Use a weather-based controller. The use of smart controllers can reduce water usage 24% a year on average. Learn about available rebate programs ...


    By Jain Irrigation, Inc

  • How Thames Water reinvented its fast sand filters

    World best filter material for purification of drinking When algal blooms put the sand filters under pressure, Thames Water started its own in-house research into new filter materials. Not only did the effort cure the constraint, the use of new filter materials has saved millions in investments. Fast Cleaning To purify water with ...

  • The Growing Threat To Canada`s Oil Sands Boom

    The Alberta Oil Sands reserves are among the top three oil reserves in the world, and are being aggressively developed by the world's largest energy producers; The Oil Sands are being counted on to replace falling production elsewhere in the world, and are strategically important to the energy industry; Extracting oil from the sands is highly water-intensive and ...


    By Biolargo, Inc.

  • Comparison of sand and membrane filtration as non-chemical pre-treatment strategies for pesticide removal with nanofiltration/low pressure reverse osmosis membranes

    Pilot plant investigations of sand and membrane filtration (microfiltration (MF)/ultrafiltration (UF)/nanofiltration (NF)/low pressure reverse osmosis (LPRO)) have been performed to treat groundwater polluted with pesticides. The results show that simple treatment, with use of aeration and sand filtration or MF/UF membranes, does not remove pesticides. However, by reducing the content of key ...


    By IWA Publishing

  • Installation of Sanding Area with Downdrought Floor: Bignell Panel Repairs

     Background Bignell Panel Repairs Pty Ltd (BPR) is a medium sized paint and panel shop employing 10 staff. In the paint and panel industry, paint dust has always been a problem. It not only impairs the quality of the paint finish but also causes environmental and health problems. Dust contains heavy metals and toxins which cause respiratory illnesses. It is easily entrained in ...


  • Gravity self-backwashing filters

    The filtration of make-up and side-stream water in closed cooling circuits, operated through cooling towers, is a fundamental step to ensure safe and continuous operations in a power plant. Water - required in large amounts for this application - should not be wasted, and the potential damages deriving from a poor treatment must be avoided at all cost. BONO ARTES has developed a technical ...


    By Artes Ingegneria SpA

  • Laboratory Filter Paper Suction Measurements

    Results of filter paper measurements for both matric and total suction values are reported for a sand, silt, and clay. Calibration curves for the matric and total suction are given for the filter paper used in this study, and comparisons with the results of several other researchers are made. For low suction values, the matric suction is more easily measured than the total suction using the ...


    By ASTM International

  • Advanced Enviro-Septic™ Systems Achieve Even Distribution without Pressure Dosing

    Abstract: Advanced Enviro-Septic™ Systems (AES) do not use pressure distribution. Pumps are used only if necessary to gain elevation to the treatment field. Pressure distribution has the potential to disrupt the settling of solids within the pipe. Testing has confirmed that AES achieves even distribution throughout the system naturally, through the development of a controlled bacterial ...

  • A Plast-O-Matic automatic air release valve ensures the depletion of unwanted air in pressurized tanks

    The latest addition to SeaWorld’s ever evolving kaleidoscope of animal and entertainment experiences is the “Manta”. As advertised by SeaWorld, the Manta will have riders flying face down, in a horizontal position, underneath the belly of a coaster train shaped as a giant manta. This giant manta, with a wing span of 12 feet, will soar over sea and sky in the most graceful flying ...


  • A study of feasibility for water purification using vertical porous concrete filter

    Abstract: There is a need to find cheaper and simpler techniques for rural water filtration system in developing countries. Using a filter made of blocks for the water treatment enables one to make vertical filters. It is expected that the amount of land utilized would decrease by more than 70 % if vertical filters were used. The operation and washing would be simpler than using horizontal sand ...

  • Fouling of low-pressure membranes during drinking water treatment: effect of NOM components and biofiltration pretreatment

    Fouling is a major challenge for low-pressure membrane drinking water treatment systems. Previous research has demonstrated that under the right conditions, biofiltration is an effective method to reduce fouling of low-pressure polymeric membranes. This study provides additional insight into the effect of biofiltration as a pretreatment for fouling reduction by using river water with different ...


    By IWA Publishing

  • Case study: Ahlstrom’s gas turbine air intake filter media helps to save energy, CO₂ and cost

    Finding new methods for saving energy is a global megatrend. Implementing technology that saves energy will have a positive impact on sustainability. Gas turbines are widely used for energy production as natural gas is one of the cleanest burning fuels and nowadays even more interesting source of energy. One of the most important parts in a gas turbine is the blade section, which converts the ...


    By Ahlstrom Corporation

  • Experimental evaluations of water treatment systems using a pilot-scale plant for adaptations to a sharp increase in raw-water turbidity caused by climate change

    One effect of climate change on the water supply systems in Japan may be a sharp increase in the raw-water turbidity following heavy rain. The objective of this study was to evaluate water treatment performance with a sharp increase in raw-water turbidity. This evaluation was carried out from the perspective of turbidity response by a pilot-scale plant using sand filtration and membrane ...


    By IWA Publishing

  • Sustainable, Low-maintenance Disinfection for Onsite Systems

    Most of the regulations applicable for onsite wastewater treatment system are based on the use of native soil for effluent dispersal. However, there are more and more situations where dispersal of effluent in native soil is impossible: repairs of existing systems on undersized lots for implementation of required dispersal fields: sites located in soils having low permeability: or where the ...


    By Premier Tech Aqua

  • Efficient Removal of Organic and Inorganic Suspended Solids

    ABSTRACT The Romans used sand as a filter media to treat their drinking water 2000 years ago. Centuries ago water was poured through layers of cloth to remove visible impurities in drinking water with fabric bags and paper cartridges soon following. Darcy employed sand beds in Dijon, France over 200 years ago to conduct his experiments for developing his famous equation to describe fluid flow ...

  • Nova Scotia - Communal Development case study

    Site: Voyager Lakes Development Location: Nova Scotia, Canada “Unique” and “Visionary” are terms that have been used to describe the new equestrian oriented Voyageur Lakes development outside Halifax, Nova Scotia. Voyageur Lakes is a mixed-use development that includes, residential homesites, shops and at the heart of the development an Equestrian Center. ...


    By Quanics Incorporated

  • Case study - KSFA onsite systems classroom training

    Installer: Kansas Small Flows Association Participants Instructor: Allison Biodig, REHS In August of 2009, around 40 participants were able to take part in the KSFA (Kansas Small Flows Association) "Classroom Training" workshop that taught the fundamentals of Drip Irrigation and Sand Filter onsite wastewater septic systems. The workshop, designed as an introduction to onsite systems, is ...


    By Bio-Microbics, Inc.

  • STP Plant Supplier in Chennai – sewage treatment Plant in Chennai Tamilnadu

    RRR ENVIRO SYSTEMS STP plant supplier in Chennai Tamilnadu .We are the Manufacturing and supply of all the types of STP Plant like ASP & FBBR Methods in 10 KLD STP,50 KLD STP, 100 KLD STP, 150 KLD STP, 200 KLD STP, 300 KLD STP, 400 KLD STP, 500 KLD STP, 600 KLD STP with the best rates available in the Indian Market. Process Of STP plant The sewage shall be passed through the screen chamber to ...


    By RRR ENVIRO SYSTEMS

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