Water Filtration Articles

507 Results found
  • Category: Water & Wastewater ×

  • Subcategory: Water Filtration ×

Reactor for Pigment Production

by AVA- Huep GmbH u. Co. KG  (Apr. 14, 2014)

Large shearing forces are required for the production of certain pigments in order to achieve high colour intensity. For this reason, such pigments are normally produced with the help of kneading / disc dryers, which inevitably provide shearing forces due to their inherent design. The material and the time and energy required for their design ...

Removal of arsenic from a deep well by electrocoagulation in a continuous filter press reactor

by IWA Publishing  (Apr. 14, 2014)

We investigated arsenic removal from groundwater by electrocoagulation (EC) using aluminum as the sacrificial anode in a continuous filter press reactor. The groundwater was collected at a depth of 200 m in the plateau region, in Central Mexico, (As 134 μg L−1, Fe 0.3 mg L−1, Cd 0.7 mg L−1, Na 58 mg L−1, pH ...

Endospore recovery from large volumes using fieldable ultrafiltration for the diagnosis of drinking water treatment plants

by IWA Publishing  (Apr. 14, 2014)

Anaerobic sulfite-reducing and aerobic spore-forming bacteria are used as indicators to verify the reliability of water treatment plant efficiency. The objectives of this study aimed to highlight the more accurate endospore indicator for water treatment monitoring and to select an efficient filtration system in order to detect low amounts of ...

Biofilm formation and permeate quality improvement in Gravity Driven Membrane ultrafiltration

by IWA Publishing  (Apr. 14, 2014)

The effects of biofilm development on ultrafiltration membranes with regard to permeate stability and permeation rates were investigated using Gravity Driven Membrane (GDM) filtration. The first part of the study aimed at evaluating the influence of the biofilm on permeate flux quality and quantity with regard to Assimilable Organic Carbon (AOC) ...

Virus removal efficiency of ceramic water filters: effects of bentonite turbidity

by IWA Publishing  (Apr. 14, 2014)

Ceramic water filters (CWFs) are utilized in many developing countries as point-of-use (POU) water treatment devices, to reduce waterborne pathogens in potable water. Virus removal efficiencies of several CWFs are investigated under various influent conditions using MS2 (ATCC: 15597-B1) as a surrogate phage for human enteric viruses. The addition ...

The use of bottle caps as submerged aerated filter medium

by IWA Publishing  (Apr. 10, 2014)

In this study, a submerged aerated filter (SAF) using bottle caps as a support medium was evaluated. The system was fed with effluent from an upflow anaerobic sludge blanket system at ETE 2-South wastewater treatment plant, under different volumetric organic load rates (VOLRs). The population of a particular nitrifying microbial community was ...

Quantitative microbial risk assessment of drinking water treated with advanced water treatment process

by IWA Publishing  (Mar. 25, 2014)

Campylobacter jejuni is one of the major causes of waterborne disease in Japan. A quantitative microbial risk assessment (QMRA) was conducted to evaluate the health risk caused by this pathogen in drinking water treated with a supposed advanced treatment process including ozonation and granular activated carbon adsorption. ...

Comparative study on membrane fouling between membrane-coupled moving bed biofilm reactor and conventional membrane bioreactor for municipal wastewater treatment

by IWA Publishing  (Mar. 13, 2014)

This study compared the performance between membrane-coupled moving bed biofilm reactor (M-MBBR) and a conventional membrane bioreactor (MBR) in parallel. Extensive tests were conducted in three pilot-scale experimental units over 6 months. Emphasis was placed on the factors that would affect the performance of membrane filtration. The results ...

Rapid on‐site separation of as(III) and as(V) in waters using a disposable thiol‐modified sand cartridge

by John Wiley & Sons, Ltd.  (Mar. 12, 2014)

The rapid redox transformation of arsenic (As) species in waters presents a great environmental challenge in accurate determination of its concentration and toxicity. The motivation for our study is therefore to develop a method for rapid on‐site separation of As(V) and As(III) in various aqueous matrices. We synthesized a thiol‐modified sand ...

Filtronics offers the lowest lifecycle costs for its water filtration systems

by Filtronics, Inc.  (Mar. 12, 2014)

One of the biggest factors those seeking city water treatment or wastewater treatment systems must take into account is cost. Many manufacturers of water treatment systems make the cost of operating their ...

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