closed sand filter Articles

  • Performance of modified design pond sand filters

    Two pond sand filters (PSFs) with modified design were constructed in Pathorghata Upazila of Barguna District located in southern Bangladesh. Performance assessment of the PSFs was done after commissioning in terms of quality of filtered water, ease of operation and maintenance, monthly check-up of production capacity/efficiency of the filters, users' participation and acceptability of the ...


    By IWA Publishing

  • 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.

  • Spragues’ Ready Mix deploys closed loop recycling equipment - Case Study

    California’s Spragues’ Ready Mix (SRM) has deployed the first closed-loop recycling equipment combination of its kind: A concrete reclaimer separating fine and coarse aggregate, coupled with a slurry-recycling filter that dewaters cement fines to yield nearly ASTM C-94 grade batch water (less than 60 ppm). The company decided to purchase the Liebherr LRS 708 Concrete Reclaimer and ...


    By ALAR Engineering Corporation

  • 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

  • Geotextiles in Construction Dewatering

    Woven geotextiles work wonders in dewatering applications as wraps around well screens and sump pit screens. The textile can be sewn into sleeves or tubes to be slid over the well screen or sump pit framework. This technique allows the user to compensate for well screens with slots that are too large or for sump pit piping with large perforations. By adding the geotextile sleeves the user ...


    By Griffin Dewatering

  • Sahara production facility reuses treated wastewater case study

    Repsol Oil Operations has a production facility based in the Sahara region that uses a wastewater treatment system, which not only treats the wastewater from its accommodation, engineering and office blocks, but also reuses the treated effluent for irrigation purposes. This project involved Zulal Water Technology, a Libyan based company with its headquarters in Tripoli, whose primary focus is ...


    By WPL Ltd

  • Compacting waste - Case Study

    Throw away little things and save big bucks? It hardly seems likely, but that's just what the U.S. Air Force is doing. At Randolph AFB, TX, they are putting usedand hazardous-air filters into a state-of-the-art industrial compaction machine and saving thousands of dollars in hazardous waste disposal. The air filters contain aircraft paint removed by plastic media blasting (PMB). Small plastic ...


    By Waste Control Systems Inc

  • The Different Kinds of Dust Collection Booths

    Factories that produce heavy dust particles require a dust collector system in place, so employees can breathe in clean and pure air at all times. Also, with one of these systems in place, machinery functions well and lasts longer. Dust collection booths also help limit dust into a closed area and safely trap it inside a closed space for ...


    By ProVent, LLC

  • Update on Mt Pleasant WTP Incorporating the MIEX ® DOC Process and How it Compares With a Plant Operating in Enhanced Coagulation Mode

    Natural organic matter (NOM) is a major factor impacting on water treatment processes. NOM is a precursor of disinfectant by-products (DBP), a food source for regrowth of micro-organisms and makes downstream processes such as membrane filtration and activated carbon less efficient. Reducing NOM in conventional treatment plants can be achieved by using enhanced coagulation, whereby additional ...


    By IXOM Watercare

  • Process Water Treatment – Challenges and Solutions

    Untitled Document Clean water is needed by chemical-process plants for a wide range of process-related and auxiliary uses. Likewise wide is the range of options available to the ...


  • Landfill leachate treatment

    Landfills are categorized by regulations in three types: industrial, municipal, and hazardous. Individual landfills may be further differentiated by the types of waste which they accept. All landfills are required to be capped, usually occurring at the end of each day. The cap is typically 6-8” of soil. The cap reduces odor and loss due to wind. At the closing of the landfill, a permanent ...


    By WesTech Engineering, Inc.

  • How To Avoid Penalties For Not Containing Spills

    "Chemical spills can cost your company millions of dollars not to mention the bad publicity that results from suffering a spill. Every business wants to avoid the possibility of an uncontained hazardous material spill if at all possible. To do this you need a spill containment system designed for the type of hazardous materials that your handle. Safe Drain ...

  • Industrial Skid Mounted Filtration System, USA

    INTRODUCTION In April 2013, Pure Aqua successfully manufactured and supplied to a major wastewater treatment site in the USA with a skid mounted twin alternating multi-media water filtration system to remove suspended solids from well water. The multi-media filtration system comes complete ...


    By Pure Aqua, Inc.

  • Spray Painting Industry: Wynnum Car Renovators Panel Beating & Towing

     Background Wynnum Car Renovators Panel Beating & Towing (WCR) is a medium sized spray painting and panel beating workshop which employs eight staff. Over the years, Peter Watson (Manager of WCR) has been continuously thinking of ways to improve his business productivity, reduce operating costs, and help protect the environment. He has to date introduced a number of waste ...


  • Optimising the Rehabilitation of polluted Mine Tailings and Water by SupaZorb

    To date the polluted acid mine drainage (AMD) – the second biggest environmental problem of the world - from South Africa’s gold mines, was characterised and treated by the precipitation of heavy metals with lime and sulphates, by means of iron exchange. The chemical treatment with expensive and toxic caustic soda (Sodium Hydroxide, NaOH) is to lift the pH, in order to reduce the corrosion on ...


    By SupaZOrb

  • ON-SITE SEWAGE SYSTEMS: NEW OUTLOOK FOR DECENTRALIZED WASTEWATER TREATMENT

    As researchers analyze the soils’ ability to absorb discharge, more knowledge is gained about alternatives to septic tanks and standard drain fields that include peat filter systems, constructed wetlands and drip irrigation. ONE out of every four American households currently treat and release wastewater on their own property. Although most people assume that on-site systems are confined to rural ...


  • Stormwater Solids Reduction for NPDES Permits

    Finally obtaining a National Pollution Discharge Elimination System (NPDES) Permit is often a relief but is by far not the end of the story. Meeting the requirements of that permit often proves to be quite difficult and stiff fines are freely doled out to those who fail to meet regulatory limits. For one Midwest jet propulsion manufacturing facility, the issue of total daily solids discharge ...

  • Valuing Global Valves

    Control valve solves flow control & pressure challenges Donnacona, Quebec, Canada, is an industrial town just west of Quebec City. The town’s water treatment plant was built in 1969 and has since undergone three major retrofits: new high-pressure pumps and an electrical upgrade in 1995; a filter bottoms change in 2000; and a river water intake upgrade in 2005. The plant includes ...


    By Singer Valve Inc.

  • Hot springs swimming pool: Glenwood Springs, Colorado case study

    Ozone Water Treatment, Color Removal and Ozone Purification In 1991, the Hot Springs Pool and Lodge Resort installed a DIN-Standard ozonation system for treating the world’s largest hot springs-fed swimming pool. The following main reasons were responsible for this decision: The suppliers of gaseous chlorine had dwindled down to a single source, as it had become ...


    By BiOzone

  • Compost in the mix for storm water management

    Bioretention areas, also known as rain gardens, are increasingly being used to capture and treat storm water runoff from impervious surfaces such as roofs, sidewalks and parking lots. These landscaped areas often feature native plants installed in an engineered soil mixture that includes compost. “Bioretention areas or rain gardens are an attractive storm water Best Management Practice (BMP) ...


    By BioCycle Magazine

Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you