Water Filtration Articles

1195 Results found
  • Category: Water & Wastewater ×

  • Subcategory: Water Filtration ×

A novel application of modified bamboo charcoal to treat oil-containing wastewater and its modified mechanism

by IWA Publishing  (Dec. 19, 2014)

Three conventional coalescence filters including walnut shells (WS), polystyrene resin particles (PR), and quartz sand (QS) were compared with bamboo charcoal (BC) to treat oily wastewater in a coalescence system process. The results showed the order of oil removal efficiency was QS>BC>WS>PR. To improve the oil removal ...

Magnets: A viable alternative to flotation for sand producers

by Eriez Magnetics Europe Ltd  (Dec. 17, 2014)

Introduction The basic rudiments of mineral beneficiation have not changed for many years. The techniques have been improved, but are still essentially the same, using either a materials weight, density, shape or magnetic susceptibility to enable separation. For removing impurities from non-metallic minerals, such as silica sand, typical methods ...

Maintenance of Oilfield Drilling Mud Decanter Centrifuge

by KOSUN Machinery  (Dec. 16, 2014)

Decanter centrifuge is widely used in drilling mud separation to separate smaller solid particles after the equipment processing such as drilling mud shale shaker and drilling fluids mud cleaner or desander and desilter. Usually, decanter centrifuge is equipped with screw pumps or slurry pumps to feed drilling mud to ...

Fluorescent-conjugated MS2 as surrogates for viruses during drinking water treatment

by IWA Publishing  (Dec. 15, 2014)

Microfiltration/ultrafiltration (MF/UF) membranes and ultraviolet (UV) light disinfection serve as attractive alternative technologies to aid utilities in complying with both the LT2ESWTR and Stage 2 D/DBP. However, both technologies are limited in their ability to remove viruses and at the same time there is a lack of methods to accurately ...

Pseudomonas aeruginosa in bottled drinking water in Sri Lanka: a potential health hazard

by IWA Publishing  (Dec. 15, 2014)

Pseudomonas aeruginosa, a food- and water-borne opportunistic pathogen, constitutes a health risk mostly to immunocompromised patients, and also affects the taste, odour and turbidity of potable water. In order to detect P. aeruginosa in bottled water in Sri Lanka, 36 bottled water brands were collected randomly from retail and supermarkets ...

Sacred place in Egypt saved by treating wastewater

by Wageningen University and Research Centre  (Dec. 8, 2014)

While investigating a wastewater problem in an Egyptian village, Alterra researcher Joop Harmsen discovered that a monastery was in danger of collapsing. This unexpected threat to a sacred place turned out to be the most important incentive for tackling this particular wastewater problem in the short term. Normally there would be no funding for ...

Magnetic Separation Myths 4 of 10 – Magnets Can’t Attract Stainless Steel or Can They?

by Bunting Magnetics Europe Ltd  (Dec. 2, 2014)

The vast majority of stainless steel used in plants processing foodstuffs, chemicals, plastics and handling bulk materials whether in solid, liquid or powder form, is non-magnetic. Or is it? Traditionally, Magnetic Separators were installed to remove anything that was magnetically susceptible.  Today, this can even include magnetic plastic, ...

Retention of pharmaceutical residues and microorganisms at the Altendorf retention soil filter

by IWA Publishing  (Nov. 18, 2014)

A study has been conducted on a retention soil filter (RSF) to test its effectiveness in removing pharmaceutical residues and microorganisms from combined sewer overflows (CSOs). Efficient removal of solids, nutrients and heavy metals has already been proven. The possibility that organic micropollutants and microorganisms are also retained by ...

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