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Archives :: Environmental, Health & Safety :: Environmental Management :: Water Treatment & Supply

Displaying 1 - 20 of 136 stories.
March 1, 2013
A UV disinfection system with longer lamp life
The Microdynamics Series OCS721 is a microwave-powered, open-channel ultraviolet (UV) system for water disinfection in municipal wastewater and water reuse applications. The device uses microwaves to energize low-pressure, high-output...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/A-UV-disinfection-system-with-longer-lamp-life_10291.html
February 1, 2013
P-recovery on the move
Unlike fossil fuels or precious metals, phosphorus has no alternatives — we (and all other life forms on the planet) need phosphorus; it’s in our DNA, our bones and our energy-producing chemicals (ATP). We get it from our food — meat, grains and vegetables — so it’s not surprising that phosphorus is a key ingredient in fertilizer, as well as a component of sewage, manure and...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/P-recovery-on-the-move_10144.html
January 1, 2013
Non-chemical Water Treatment
Non-chemical water treatment methods generally utilize electricity to prevent scale formation, mitigate corrosion and control microbial growth. When properly applied, non-chemical water-treatment technologies help plants reduce chemical consumption, minimize waste and possibly save water and energy. The following descriptions outline several types of non-chemical water-treatment methods. Magnetic fields...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Non-chemical-Water-Treatment_10055.html
December 1, 2012
I drink tap water
I drink tap water! There, I finally said it. I am out of the closet — the water closet. My two sons are now cowering with shame, wondering how they can possibly ever face their Dasani-drinking friends again. It was maybe 20 years ago when I first encountered the concept of bottled water. What a strange idea! Why would anybody want to pay for something that’s free — and everywhere —...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/I-drink-tap-water_9993.html
December 1, 2012
Use this microbicide for municipal wastewater
Proxitane WW-12 Peracetic Acid (PAA) is an environmentally compatible microbiocide that is used for biological control in municipal wastewaters. This U.S. Environmental Protection Agency (EPA)-registered wastewater disinfectant is an alternative to halogenated...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Use-this-microbicide-for-municipal-wastewater_10011.html
November 1, 2012
weftec 2012 the water quality event
  Weftec 2012, the Water Environment Federation’s 85th annual technical exhibition and conference, attracted over 17,000 attendees on September 29 – October 3, 2012 at the Morial Convention Center in New Orleans, La. With 980 exhibiting companies, the following is a small sampling of products and services that were on the exhibition floor.   Linde North America Gas treatment systems...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/weftec-2012-the-water-quality-event_9930.html
October 1, 2012
Water and energy are linked
This month marks the 40th anniversary of the Clean Water Act (CWA), the primary federal law regulating discharges of pollutants into U.S. waters. As far as the developed world’s water priorities go, a great deal has changed since 1972. For one thing, the top challenge back then was eliminating releases of toxic substances. Today, that challenge is arguably being met, and we are now getting more...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Water-and-energy-are-linked_9758.html
October 1, 2012
Four headworks processes preassembled into one package
The complete Pista Works headworks system combines several headworks processes — screening, grit removal and grit washing — into one skid-mounted package. Each system is preassembled and shipped directly to the job site on one...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Four-headworks-processes-preassembled-into-one-package_9798.html
August 30, 2012
Technology from Veolia Water Solutions is selected for potash and salt recovery in Spain
Veolia Water Solutions & Technologies (Saint Maurice, France; http://www.veoliawaterst.com) has been awarded the supply of a large-scale evaporation and crystallization plant by Iberpotash, S.A., a business unit of ICL Fertilizers. Iberpotash produces potash fertilizers from sylvinite mining from deposits located near Suria, in the Barcelona province of Spain. The plant, to be completed in 2014, will...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Technology-from-Veolia-Water-Solutions-is-selected-for-potash-and-salt-recovery-in-Spain_9711.html
August 1, 2012
New RO membranes with high salt rejection
Five new types of Lewabrane membrane-separation elements for reverse osmosis (RO) are now available. As of July, high-rejection (HR) types with membrane surface areas of 370 and 440 ft2, and high-flow (HF) types, with membrane surface areas of 370, 400 and...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/New-RO-membranes-with-high-salt-rejection_9544.html
May 1, 2012
Water-saving strategies for the CPI
Reducing freshwater consumption and wastewater discharge at large petroleum-refining and chemical-production facilities can lower costs, while allowing plants to expand production capacities without having to secure additional freshwater resources and without having to enlarge their wastewater treatment plants. The key approaches to saving significant amounts of water are: improved water management...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Water-saving-strategies-for-the-CPI_9277.html
March 26, 2012
Siemens to provide IPS composting system in China
Guodian Northeast Environmental Protection Industry Group, Ltd. has selected Siemens Industry Automation Division (Nuremberg, Germany; www.siemens.com/water) to supply an IPS composting system using the new Mechanically Enhanced Biodrying (MEB) process for the Shenyang Wastewater Treatment Plant Sludge Treatment Project in Shenyang, China. It will be the largest IPS composting facility ever built, and one...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Siemens-to-provide-IPS-composting-system-in-China_9136.html
February 1, 2012
Frac Water Reuse
Production of natural gas from shale formations presents key water management challenges. As the number of gas drilling operations continues to grow in shale plays around the world, and the practice of hydraulic fracturing (frac or fracing) of gas wells remains widespread, efficient water use strategies are becoming critical aspects of shale gas operations. Fresh water supplies for drilling and fracturing...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Frac-Water-Reuse_8943.html
November 29, 2011
Kroff expands its water-treatment operations to South America
Kroff, Inc. (Pittsburgh, Pa.; www.kroff.com) is expanding internationally with the establishment of operations in South America and the creation of a new company called Kroff Chile - Tecnologías y Procesos Limitada. Based in Santiago, Kroff Chile - Tecnologías y Procesos Limitada is positioned to provide custom-blended chemicals and...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Kroff-expands-its-water-treatment-operations-to-South-America_8719.html
November 1, 2011
Modern Concepts in Makeup Water Treatment
Water and steam are vital components of virtually all plants in the chemical process industries (CPI). And, a very important operation is the treatment of makeup water to produce the purity required for certain applications, most notably for use in heat exchangers and steam turbines. An important consideration in water treatment is that many industrial facilities are, or will soon be, dealing with...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Modern-Concepts-in-Makeup-Water-Treatment_8607.html
October 1, 2011
Perkin Award reflects ChE trend
Last month, at a dinner at the Hyatt Hotel in Philadelphia, Pa., the SCI America International Group (Philadelphia, Pa.; www.soci.org), presented its Perkin Medal to Dr. Rodney H. Banks, a research fellow at Nalco (Naperville, Ill.; www.nalco.com). As Stephanie Burns, honorary president of SCI explains, “This award recognizes his fundamental contributions to new sensor technologies that have led to...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Perkin-Award-reflects-ChE-trend_8507.html
October 1, 2011
Increase capacity with these membrane filtration modules
The latest version of this company’s Puron membrane bioreactor (MBR) filtration modules allows a possible 25% increase in capacity over the previous version. The Puron...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Increase-capacity-with-these-membrane-filtration-modules_8546.html
September 1, 2011
Water Treatment Chemicals
For years it has been the common practice to treat process water with various chemistries to prevent scale, corrosion and microbiologicals. However, as regulatory issues tighten, water scarcity becomes a growing concern and the cost of treatment chemicals increases, chemical processors are finding that stringent treatment chemicals are not the only answer. Instead, they’re relying upon a multi-prong...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Water-Treatment-Chemicals_8413.html
July 1, 2011
Reduce chemicals and fouling with this membrane system
A new hollow-fiber membrane system, Targa II HF (photo), offers a cost-effective, safe, high-quality water solution for a variety of ultrafiltration applications, from drinking water to seawater pretreatment...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/Reduce-chemicals-and-fouling-with-this-membrane-system_8206.html
July 1, 2011
A modular version of wastewater treatment system is introduced
This company has introduced a modular version of its biological water-treatment system, known as ABMet. The patented system uses naturally occurring microbes to reduce levels of selenium and other metals in water from coal mines and power...
http://www.che.com/environmental_health_and_safety/environmental_mgmt/water_treatment_and_supply/A-modular-version-of-wastewater-treatment-system-is-introduced_8217.html
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