A non-partisan, neutral perspective supporting diversity in the color of water

Tuesday, December 26, 2017

Unique Greywater Thesis

The University of Alaska Anchorage Civil Engineering program is completing some very important research on greywater reuse where the goal is not to fear greywater, but embrace it!
Development of a Physicochemical Greywater Reuse Treatment System for Intentional Human Contact

by Gregory Michaelson


Some rural Alaskan communities rely on self-haul systems to get water and dispose of waste, a time and labor intensive practice. Water quantity is limited and conserved in households on self-haul systems. As a result, water wash disease rates are high in communities that lack running water and sewer. Building centralized water systems in rural communities is expensive and more difficult in cold climate regions located off the road system. The Alaska Water and Sewer challenge project investigates alternatives to centralized systems to provide sufficient water service to homes in unserved communities in rural Alaska. A prototype was built, adapted and tested for about 1 year to evaluate viability of an in-home greywater reuse system. Water quality goals were met during testing as meeting Direct Potable Reuse standards. Critical Control Points (CCPs) have been identified for this treatment system through the design development process, pathogen testing and micropollutant/water quality sampling. All testing was completed at full scale for a 4-person household using a daily water volume of 58 gallons. Recommendations have been made to integrate CCPs into system automation based on parameters used to describe treatment process efficiency. Alarms and shutoff functions need to be integrated into the system to ensure functionality and health protection by CCPs. Implementing these controls and alarms into the system will add to system robustness and protect public health for eventual installation of systems into homes. Through these efforts, we hope to help contribute to the long-term solution of improving public health by increasing water quantity and availability in rural Alaskan households.

Unfortunately, the University of Alaska Anchorage has the thesis buried behind the ProQuest Dissertations Publishing firewall. But if you have access to a university library, check it out!
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One of Alaska's strengths is our pioneer role in 
environmentally sensitive development. 
~Former US Senator and Governor of Alaska Frank Murkowski

Saturday, December 16, 2017

Greywater Gets Legoed

Congratulations to the *3B*s for their greywater reuse project constructed using LEGO robotics. This article in BayToday provides all of the constructive details of the competition with this year's theme focusing on hydrodynamics!

“We’ve made a greywater reuse system to flush toilets and it can use any source of grey water,” Rory and Katelyn said, two of the six members of the all-girls team. “These sources include dishwasher, bath, shower, washing machine, sump pump and rain barrels and you can use any of them.”

Just another of the many grey(t) school projects tracked by the Rainbow Water Coalition.
* * * 
“When Ole Kirk Kristiansen established the company name LEGO in 1934, it was a fortunate play on words. The entrepreneur had been inspired by the Danish phrase "leg godt" - "play well." He took the beginning of each respective word and made what he considered to be a pleasant-sounding, imaginary word out of them. The company owner was unaware that as the first person present singular of the verb legere, "lego" is also the Latin word for "I assemble" - and therefore completely appropriate for the modularity of the company's later invention, the LEGO brick.” 
~ Christian Humberg, 50 Years of the Lego Brick [With 6 Legos]

Saturday, December 2, 2017

The Business of Water

The Business of Water is getting increased attention, from the many water-focused Exchange Traded Funds (ETF) with double-digit returns, conferences with catchy titles, to courses with the same catchy titles offered at both Georgetown University and Oregon State University (OSU). The Business of Water course at OSU uses this book as a textbook.

A concept note for a *waterMBA* was for a joint degree program between the Water Resources Graduate Program and College of Business (COB) at OSU, but the effort ran out of steam with the appointment of a new COB dean. An opportunity lost to others.

So, what is news in the Business of Water and why all of the attention? How about "The Flow Meters Market Is Estimated At USD 6.81 Billion In 2017 And Is Projected To Reach USD 9.30 Billion By 2022"?

And the connection to greywater?

Asia Pacific is projected to lead the flow meters market during the forecast period. On the basis of region, the flow meters market has been segmented into North America, Europe, Asia Pacific, South America, and the Middle East & Africa. Asia Pacific is projected to lead the flow meters market during the forecast period. The growth can be attributed to the increasing demand for water & waste water treatment (which includes greywater recycling, purge treatment, biogas measurement, and effluent treatment) due to the rising demand from the irrigation industry.

Key companies supplying flow meters are:

  • Honeywell (US)
  • Siemens (Germany)
  • Emerson Electric Co. (US)
  • ABB Ltd. (Switzerland)
  • Yokogawa Electric (Japan)
  • Azbil (Japan)
  • Badger Meter (US)
  • Krohne Messtechnik (Germany)
  • Schneider Electric (France)
  • Endress Hauser (Switzerland)
  • Litre Meter (UK)
  • Sierra Instruments (US)
  • SICK AG (US)
  • Seametrics (US)
  • EQUFLOW (Netherlands)

Kudos to the University of Wisconsin-Whitewater for capitalizing on home-grown talent by recruiting the CEO of Badger Meter to their Institute for Water Business Advisory Board.

So, don't squander this bullish market. Invest in water.
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“Don't cry over the shots you've missed; 
weep over the ones you've not taken at all. 
The bitterest regrets are for things planned but left undone!”