Water Filtration Articles

1346 Results found
  • Category: Water & Wastewater ×

  • Subcategory: Water Filtration ×

Well-to-Wheels Greenhouse Gas Emissions of Canadian Oil Sands

by GLOBE Foundation  (Jun. 25, 2015)

Are greenhouse gas emissions from Canada’s oil sands higher than those from conventional oil? Apparently yes, according to a new study funded in part by the U.S. Department of Energy. It says oil from Canada’s oil sands produce greenhouse-gas emissions that average 20% more than from oil from conventional U.S. crude. The study ...

Maximum Efficiency for...Saving Water

by Baioni Crushing Plants Spa  (Jun. 12, 2015)

In an attempt to protect our ecological surroundings and minimize the negative effects of industrial processes, it is necessary to purify and recover the waters used during washing operations of sand washing, quarrying and recycling operations. The first step is to recover 100% of the waters used and to eliminate the concentration of sludge, thus ...

Aquifer recharge with reclaimed water: life-cycle assessment of hybrid concepts for non-potable reuse

by IWA Publishing  (Jun. 26, 2015)

Aquifer recharge with reclaimed water is a promising means to store and supply on demand reclaimed water of high quality for further non-potable reuse. The reuse applications may include indirect agricultural or landscape irrigation, saltwater intrusion barriers, subsidence mitigation or aquifer replenishment. As an alternative to high-pressure ...

Three Pressure Retarded Osmosis (PRO) Processes

by IDE Technologies  (Jun. 24, 2015)

Abstract Pressure retarded osmosis (PRO) can be implemented on a number of water types, using different technologies and achieving various power outcomes. This paper presents the three most practical options: Option 1 - Seawater with river water, driving force 25 bar, power output 5-10 watt/m2 Option 2 - SWRO brine with wastewater, driving ...

Critical parameters in the production of ceramic pot filters for household water treatment in developing countries

by IWA Publishing  (Jun. 8, 2015)

The need to improve the access to safe water is generally recognized for the benefit of public health in developing countries. This study's objective was to identify critical parameters which are essential for improving the performance of ceramic pot filters (CPFs) as a point-of-use water treatment system. Defining critical production ...

Cryptosporidium genotypes and subtypes distribution in river water in Iran

by IWA Publishing  (Jun. 8, 2015)

Little is known about the diversity and public health significance of Cryptosporidium species in river waters in Iran. In the present study, we determined the genotype and subtype distribution of Cryptosporidium spp. in river water samples in Iran. A total of 49 surface water samples were collected from rivers and surface water in Guilan and ...

Virus removal vs. subsurface water velocity during slow sand filtration

by IWA Publishing  (Jun. 8, 2015)

In an attempt to obtain a conservative estimate of virus removal during slow sand and river bank filtration, a somatic phage was isolated with slow decay and poor adsorption to coarse sand. We continuously fed a phage suspension to a 7-m infiltration path and measured the phage removal. In a second set of experiments, we fed the phage suspension ...

Assessment of a membrane drinking water filter in an emergency setting

by IWA Publishing  (Jun. 8, 2015)

The performance and acceptability of the NeroxTM membrane drinking water filter were evaluated among an internally displaced population in Pakistan. The membrane filter and a control ceramic candle filter were distributed to over 3,000 households. Following a 6-month period, 230 households were visited and filter performance and use were ...

Evaluation of an MPN test for the rapid enumeration of Pseudomonas aeruginosa in hospital waters

by IWA Publishing  (Jun. 8, 2015)

In this study, the performance of a new most probable number (MPN) test (Pseudalert®/Quanti-Tray®) for the enumeration of Pseudomonas aeruginosa from hospital waters was compared with both international and national membrane filtration-based culture methods for P. aeruginosa: ISO 16266:2006 and UK The Microbiology of Drinking Water ...

Solutions For Difficult Ejection

by Focare Mould Co.,Ltd.  (Jun. 6, 2015)

Solutions For Difficult Ejection According to the above articles reason analysis, mainly we have following solutions for Difficult Ejection: 1)Shooting technique solutions * Avoid excessive melt injection. *Reduce injection pressure and dwell pressure, shorten dwell time. *Reduce injection rate and barrel temperature,optimize dimension of ...

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