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Agua Latino America
Home»Knowledge Center

Knowledge Center

The premier source for news, technical articles and water science features since 1959, WC&P collaborates with the finest authors in the world, including industry experts as well as renowned academic and research institution contributors. To maintain this high level of technical integrity, articles are subjected to vetting by our Technical Review Committee, a group of water treatment industry professionals well known the world over.


Softening_March2014_image

Water Softening

Water softening, the reduction of calcium and magnesium from water to lower total hardness, is achieved through the ion exchange process, resulting in significant savings on soap and laundry products as well as increased longevity of appliances (hot water heaters, dishwashers, washing machines) due to reduction of lime scale formation. The process employs a variety of ion exchange resins, depending on the application.
 

Read more:
  • Softener Efficiency — It’s Not Just about the Salt! by C.F. ‘Chubb’ Michaud
  • Water Softener Performance Testing by Mark T. Unger
  • Softened Water Benefits Study: New Reports Related to Detergent and More Energy Savings by Pauli Undesser
  • Softening Alternatives by C.F. ‘Chubb’ Michaud
  • It’s Tough Being a Resin Bead by Matthew Wirth

reverse-osmosis

Reverse Osmosis

Reverse osmosis uses a semi-permeable membrane to separate and remove dissolved solids, organics, pyrogens, sub-micron colloidal matter, viruses and bacteria from water. It is the only treatment process capable of removing a large number of pharmaceutical and personal care product contaminants found in modern day water sources. RO is often used in conjunction with other filtration methods to ensure purity of the water source.

 

Read more:
  • Reverse Osmosis Technology — Not Just for Water Purification by Peter S. Cartwright, PE
  • A Primer on RO Application: Wastewater Concentration Calculations by Tanya Lubner, PhD
  • A Primer: Reverse Osmosis by Ryan Lessing
  • Low-Energy (LE) RO Membranes by Michael Kim
  • Pretreatment Technologies for Reverse Osmosis and Nanofiltration by Peter S. Cartwright, PE

Filtration_January2010_image

Filtration

Filtration, either natural or mechanical, serves as an initial barrier to contaminated water. Methods of filtration can be traced back to the earliest of human recordkeeping, most notably with sand filtration employed as one of the first viable methods. Over time, different media have evolved to become successful contaminant removal products, including multiple types of carbon-based products, zeolites, sphagnum and many others.
 

Read more:
  • Principles of Filtration: How do Filters Filter Anyway? by Larry Henke
  • Sustainable Decentralized Water Treatment for Rural and Developing Communities Using Locally Generated Biochar Adsorbents by Josh Kearns, MS
  • Reduction of Chloramines in Drinking Water Using Catalytic Carbon by Vivekanand Gaur, PhD
  • Catalytic Activated Carbons for Dechlorination and Dechloramination: Do they really work and, if so, how? by Gary Hatch, PhD
  • Activated Carbon: Modern Advances for an Ancient Technology by Jeffrey A. Trogolo, PhD

IonExchange_April2001_image

Ion Exchange

Ion exchange is the process by which hardness ions (calcium and magnesium) are exchanged as a means of removal. It is the replacement of undesirable ions with a certain charge by desirable ions of the same charge in a solution, by an ion-permeable absorbent. These resins may be ion-specific, which can target contaminants such as nitrate, sulfate, uranium, arsenic, tannin and many others.

Read more:
  • Hard to Lather, Easy to Fix by Greg Reyneke
  • A Brief History of Ion Exchange Water Treatment by Gary Battenberg
  • How Fast Can We Run? Ion Exchange Reaction Zones by Matthew Wirth
  • Ion Exchange Reactions, A Review by C.F. ‘Chubb’ Michaud
  • High-Performance Nitrate Removal Ion Exchange System by Filip Rochette
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