Water Filtration Articles

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Precipitation of aluminium and phosphates in effluents treated by membrane filtration - Case Study

Customer Application and Activity Decoral specializes in treating technical components made from aluminium and titanium through treatment steps such as anodizing and polishing. The effluents from its surface treatment plant are mainly contaminated with aluminium and phosphates. Problem to be solvedDecoral was keen to simplify the management of ...

Industrial Maintenance for Compressor Stations

by STI Group, Inc.  (Aug. 3, 2016)

Transporting natural gas via pipelines is very safe and cost-efficient. However, in order for the transportation process to work properly it is imperative that the natural gas be kept at the correct pressure. To accomplish this compressor stations are needed at regular intervals. Let’s take a look at some key components of compressor ...

How Does Lead Get into Drinking Water? How Can Local Municipalities Remove It?

by SAMCO Technologies, Inc.  (Jul. 15, 2016)

In light of the Flint water crisis—when, in 2014, Flint officials changed the city’s water source from the Detroit Water and Sewerage Department to the Flint River, leaching unsafe levels of lead into the public water supply due to improper treatment—many people are wondering if the same thing could happen in their own ...

Case study - Algae control in fire reservoir Häagen Dasz production facility

by LG Sonic  (Jul. 1, 2016)

A 77 meter rainwater reservoir for fire extinguishing purposes was completely covered with filamentous green algae. The green filamentous algae clogs regularly filters located before the jockey pumps.  The Challenge: Control Green Algae and Lower the Use of Oxygen Peroxide Located in Tilloy-lès Mofflaines, France, the 77 meter long ...

Flush Mounted Valve Exposed

by Containment & Filtration Solutions  (Jun. 7, 2016)

The “Other Guys'” answer to standing water??  The flush mounted valve. The “Other Guys'” answer to standing water is the Flush Mounted Valve.  This is a second valve that is installed adjacent to the primary valve and flush with the bottom of the insert allowing for complete drainage. As seen ...

Polyethersulfone/polyacrylonitrile blended ultrafiltration membranes: preparation, morphology and filtration properties

by IWA Publishing  (Jun. 4, 2016)

Polyethersulfone (PES)/polyacrylonitrile (PAN) membranes have been paid attention among membrane research subjects. However, very few studies are included in the literature. In our study, asymmetric ultrafiltration (UF) membranes were prepared from blends of PES/PAN with phase inversion method using water as coagulation bath. ...

Preliminary stabilisation of stormwater biofilters and loss of filter material

by IWA Publishing  (Jun. 1, 2016)

Stabilisation affects performance of stormwater biofilters operating under intermittent wetting and drying, mainly due to wash-off of filter material. Understanding the dynamics of solids wash-off is crucial in designing stormwater biofilters. The current study analysed the dynamics of solids wash-off in stormwater biofilters and quantified ...

Treatment of leather industrial wastewater via combined advanced oxidation and membrane filtration

by IWA Publishing  (May 23, 2016)

The liming/unhairing operation is among the important processes of the leather industry. It generates large amounts of effluent that are highly loaded with organic hazard wastes. Such effluent is considered one of the most obnoxious materials in the leather industry, causing serious environmental pollution and health risks. The effluent is ...

Parallel evaporation after extraction of liquid dairy samples following the Mojonnier method (ISO 1211:2010) – gravimetric fat determination

by BÜCHI Labortechnik AG  (May 19, 2016)

Parallel evaporation after extraction of milk samples with the Mojonnier The fat in liquid dairy samples is usually extracted with an organic solvent that is then evaporated to complete dryness prior to gravimetric analysis. In this short note, initial conditions and evaporation settings for the parallel evporation of milk fat dissolved in ...

Assessment of the quality, effectiveness, and acceptability of ceramic water filters in Tanzania

by IWA Publishing  (May 10, 2016)

Globally, approximately two billion people drink contaminated water. Use of household water treatment (HWT) methods, such as locally manufactured ceramic filters, reduces the diarrheal disease burden associated with unclean water. We evaluated the quality, effectiveness, and acceptability of ceramic filters in two communities in Arusha, ...

Flint Must Make Us Ask: Is Our Water Ready for an Emergency?

by Genesis Water Technologies, Inc  (May 4, 2016)

In emergency situations, providing access to and cleansing water is as important as the availability of the water itself. Even when available, non-potable is a significant danger. The United Nations says diarrhea caused by consuming unsafe water is a top cause of morbidity due to malnutrition, contributing to roughly 60% of deaths of children ...

gaiasafe filter products for drinking water purification - Case Study

by gaiasafe GmbH  (Apr. 25, 2016)

Problem In some water works chlorination of drinking water is used to eliminate mikrobes. Chlorinated water may have disagreable taste and smell. Some water works use aluminium salts to clean the water. This leads to low concentrations of aluminium in drinking water. Today it is known that aluminium may be toxic to men. Old piping installations ...

Tabas coal preparation plant wastewater treatment with membrane technology

by IWA Publishing  (Apr. 22, 2016)

The goal of the present work is the Tabas coal preparation plant wastewater treatment using membrane technology. Polyacrylonitrile membrane was prepared through phase inversion method and then developed by annealing process. Also, high fouling resistance membranes were prepared by the embedding of TiO2 nanoparticles using self-assembling and ...

Case study - WESPs: Securing a cleaner future for power-generating facilities

by Beltran Technologies, Inc.  (Apr. 11, 2016)

This article explains why wet electrostatic precipitators remain a viable technology for dealing with today's increasingly stringent compliance issues. Despite recent, recession-related volatility in both power generation and consumption, industry analysts expect a resumption of long-term growth trends as continued global demand for energy ...

The Application of Waste Solids Management Vertical Cuttings Dryers as an integral element of a successful Solids Control System

In Elgin’s last White Paper, “Common Challenges Relative to the Use of Decanter Centrifuges for Barite Recovery in the Oil & Gas Industry,” a detailed discussion was offered about the complexities involved in achieving effective solids control when deploying a dual-centrifuge “barite ...

Rapid novel test for the determination of biofouling potential on reverse osmosis membranes

by IWA Publishing  (Mar. 31, 2016)

A novel method was proposed to determine biofouling potential by direct analysis of a reverse osmosis (RO) membrane through fluorescence intensity analysis of biofilm formed on the membrane surface, thereby incorporating fouling tendencies of both feedwater and membrane. Evaluation of the biofouling potential on the RO membrane was done by ...

Water Reuse Options for Industrial Plants

by KLa Systems, Inc.  (Mar. 2, 2016)

Water can be a high cost commodity for an industrial operation.  In addition, industrial water consumption uses approximately 22% of water worldwide, a percentage that bothers water-conscious customers. To cut back on costs, as well as reduce environmental impact, industrial plants are considering water reuse. Plants have several options ...

Injecting Innovation Into The Food And Beverage Industry

by KLa Systems, Inc.  (Feb. 22, 2016)

Not all water treatment needs are the same. That’s why it’s imperative to work with those that understand the subtle differences that make each industry unique. For food and beverage companies, that means aligning with a company focused on oxygen transfer with a track record of innovation in jet aeration and mixing. Water Online spoke ...

Environmental growth of the faecal indicator Enterococcus moraviensis

by IWA Publishing  (Feb. 9, 2016)

Soil passage through sand dunes has previously been shown to remove enteric micro-organisms very effectively, and hence is used for the production of drinking water. However, enterococci have occasionally been isolated from abstracted water (after dune passage) in one of the dune infiltration areas in the Netherlands. Enterococcus moraviensis ...

Flux-step method for the assessment of operational conditions in a submerged membrane bioreactor

by IWA Publishing  (Feb. 8, 2016)

A flux-step method was used for monitoring the pressure variation in a solids separation membrane at different operating conditions. A submerged membrane bioreactor pilot plant, used during the short-term tests, was used to purify actual restaurant wastewater. The influence of membrane backwash and relaxation on the variation of pressure ...

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