water filter part Articles

  • What Is Zero Liquid Discharge and How Does It Work?

    Not every industrial facility that produces wastewater will require zero liquid discharge (ZLD). It is usually looked to as a last resort because it can be a complex process that requires a high initial investment. If a facility is located on a site that has severe water scarcity issues and/or astronomical discharge fees, it might be ...


    By SAMCO Technologies, Inc.

  • How a Specialized Automatic Control Valve Solved Flooding

    The Colombian area of Antioquia creates much of its clean power from hydropower plants along the Guadalupe River. The Guadalupe IV hydroelectric plant generates power with three vertical axis turbines that discharge water below the river level. To prevent flooding, however, the plant needed a solution that ensured the ejector ...


    By Singer Valve Inc.

  • Detection of part per trillion levels of 2,4-d in drinking water

    MATRIX: Drinking water ANALYTES: 2,4-D (2,4-dichlorophenoxyacetic acid) and related phenoxy acids LIMIT OF DETECTION: 70 ppt to 5 ppb (for 10 mL sample), 7 ppt to 0.5 ppb (for 100 mL sample) MATERIALS: 2,4-D RaPID AssayÒ Kit and Sample Diluent Reagents: 2,4-D control (preparation described below), methanol and ...


  • Soil Filters

    Soil filters (in german: Retentionsbodenfilter) are facilities for the removal of nutrients and/or pollutants; typically on the level of an industrial site, a quarter or a drainage system (sub-)catchment. Usually they are located at the discharge points to surface waterbodies to ensure water quality standards. Soil filters consist of two parts: The first part is a retention pond or basin for ...


    By IWA Publishing

  • Combination filters

    Simply defined, a combination filter is one that does at least one other processing job at the same time as filtering a suspension. The classic example, of course, is the packed bed of activated charcoal, which acts as a remover of chemical impurities from the suspension, as well as removing dust particles - although this is actually not a very good example, because it is primarily an adsorber, ...

  • Innovation in radioactive wastewater-stream management: Part one

    Treatment of radioactive wastewater streams is receiving considerable attention in most countries that have nuclear reactors. The first Egyptian research reactor ETRR-1 has been operating for 40 years, resulting in accumulation of large quantities of wastewater collected in special drainage tanks called SDTs. Previous attempts were aimed at the volumetric reduction of streams present in SDTs, by ...


    By Inderscience Publishers

  • Why geoengineering can be only part of the climate solution

    Climate change is not a technological problem, so a technological fix is not enough. The failure of the Kyoto Protocol and the underlying process of the United Nations Framework Convention on Climate Change (UNFCCC) has led to substantial interest in geoengineering technologies, under the usual (and not entirely irrational) view that if policy can’t work, perhaps technology ...


    By Ensia

  • Oil Sampling Best Practices (Part 2)

    Understanding Dynamic Particle Equilibrium in Closed Loop Systems Dynamic Equilibrium Condition (DEC) is defined as a steady state condition where the normal wear rate in a machine results in no net gain or loss of particles. ...


    By Spectro Scientific

  • Filter backwashing: When and how

    Backwashing filters is a necessary and important part of the filtration process. Many operating problems associated with the filtration process can be traced to delayed or inadequate backwashing. Producing a high-quality and low turbidity filtered water depends on having clean media free of cracks and mudballs. The Interim Enhanced Surface Water Treatment Rule, promulgated on Dec.16, 1998, lowers ...


    By Entech Design, Inc.

  • 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

  • Unmixing Water From Waste: The imporance of filters, cartridges and housings as a function of manufacturing

    In manufacturing, water and water-based solutions are regularly filtered for various purposes and outcomes – including for cleaning, cooling, and movement. The filtering process is crucial to quality, performance, and cost savings. With the wrong filter in place, pumps can be destroyed, liquid being filtered can become “unusable” for the intended purpose, cleaning solvents can ...


    By Shelco Filters

  • MAS Introduces Filter Innovation

    Our partner MAS has recently attracted attention for a range of technical innovations in extrusion and plastic recycling technology, including the co-rotational conical twin screw extruder and a waterless cleaning system for film flakes. This ...


    By eFACTOR3 LLC

  • Raising energy efficiency in a new materials economy - Part II

    There is a vast worldwide potential for cutting carbon dioxide (CO2) emissions by reducing the use of materials. This begins with the major metals--steel, aluminum, and copper--where recycling requires only a fraction of the energy needed to produce these metals from virgin ore, and with the recycling and composting of most household garbage. It continues with designing cars, appliances, and ...


    By Earth Policy Institute

  • Balancing growth and conservation - Precast concrete manholes become part of the stormwater solution

    When American Fork, Utah, decided to approve construction of a 175-acre commercial center, the city engineers had to consider the environmental effect it would have on a 45-acre wetland right next door. Under the EPA´s Phase II Storm Water Rules, adapted in late 1999, almost any city large enough to require a storm sewer system must balance growth with the environmental impacts of ...


    By BaySaver Technologies, 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 ...

  • Fabrication and evaluation of an attapulgite membrane as the filter for recycling blowdown water from industrial boilers

    Continuous blowdown water (CBW) from industrial boilers is of great quantity and energy, and therefore worth recycling. According to the data from a long period of monitoring, carbonate and sulfate were documented as the main contaminants in CBW. Herein, an attapulgite (ATP) membrane was prepared on a macroporous Al2O3 support through solid state sintering. The prepared membrane ...


    By IWA Publishing

  • Home of random biological filter media - Case Study

    Biomarble from warden biomedia range selected by wpl for their largest tertiary treatment plant provided for Yorkshire water’s Danesmoor site WPL were challenged with the task to design and manufacture the largest bespoke modular steel wastewater process solution (N-SAF) the company have ever supplied. The unit had to handle 50 l/sec FFT, almost twice the average, so something ...


    By Warden Biomedia

  • How HEPA Filter Make Steam Cleaners Best?

    A HEPA filter, by definition, is an air filter that removes particles larger than 0.3 micrometers from air. This filter eliminates 99.9 percent of minute particles from the air and helps keep the indoors clean. The best steam cleaner for commercial use often has a HEPA filter. A HEPA filter removes dust, allergens, and other harmful particles, and keeps indoor areas clean and healthy. The best ...


    By Daimer Industries Inc.

  • Using a Self Bailer on Containment Sumps to Filter Hydrocarbons

    How do you eliminate problems associated with the collection of rainwater in outdoor containment systems and maintain compliance with EPA and Clean Water Act regulations?  Since most outdoor oil storage tank sumps and oil drum spill pallets will inevitably be exposed to local precipitation and storm water runoff from nearby catchment surfaces, it is necessary to make sure you ...


    By Interstate Products Inc

  • Methods of Water Purification

    This article is excerpted from 'Pure Water Handbook' published by Osmonics®, Inc. of Minnetonka, Minnesota USA and is printed with permission of Osmonics, Inc. Water treatment can be defined as any procedure or method used to alter the chemical composition or natural 'behavior' of a water supply. Water supplies are classified as either surface water or groundwater. The majority of public or ...

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