Treating Water in the Home

Posted on Leave a commentPosted in Engineering, Infrastructure, Public Policy, Science and Technology, Uncategorized, Water

Treating water in a home or a building may be relevant in a few situations.  First, in communities without sufficient capital to build water treatment facilities, residents are forced to drink bottled water.  This happens thorughout the world, from the farmlands of East Africa to the rural communities of California.  Second, many in the sustainability […]

Understanding Arsenic in Drinking Water

Posted on Leave a commentPosted in Engineering, Environment, Infrastructure, Public Policy, Science and Technology, Water, Water Resources Engineering

Arsenic is a naturally-occurring element that can leach into groundwater and surface water from rocks and minerals.  In most areas, natural levels of arsenic in water are less than 1 ppb, though some communities, particularly in the Western U.S., have recorded natural arsenic levels in water sources over 10 ppb1.  Arsenic can have both acute […]

Enlightening Facts for UV & Water Treatment

Posted on Leave a commentPosted in Engineering, Infrastructure, Uncategorized, Water

Ultraviolet (UV) disinfection uses electromagnetic radiation to kill microorganisms such as protozoans, bacteria, and viruses damaging their genetic material (DNA and RNA).  While UV radiation applications for treatment are a century old, date to, improved cost-effectiveness and concerns over conventional disinfection methods have increased the popularity of UV disinfection in recent decades.  In the U.S., […]

Point-of-Use Water Treatments

Posted on Leave a commentPosted in Engineering, Infectious Disease, Infrastructure, Water, Water Resources Engineering

The cover image for this post comes from FreshHome.com and is just fantastic and quite fitting for a blog post on Point-of-Use treatment, so I had to use it and give all the attribution in the world possible. A variety of physical and chemical point-of-use (POU) treatments exist1.  The most prevalent treatment approach in homes […]

The Scoop on Anaerobic Digestion

Posted on Leave a commentPosted in California, Energy Policy, Engineering, Environment, Systems Engineering, Water Resources Engineering

Anaerobic digestion has been used in wastewater treatment processes for decades.  Recent innovations, however, are making the technology more viable for commercial applications. Anaerobic digestion occurs when microbes degrade organic matter in the absence of oxygen gas. It can be used to treat sewage effluent, agricultural byproducts, and solid municipal wastes.  The microbes utilize oxygen […]