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Archive for the ‘Environment’ Category

UtilityDIVE reports at this link as follows:

Duke Energy reported its Q4 2014 earnings this week and company officials say it is preparing to pay a $100 million fine to settle the ongoing investigation into a coal ash spill into the Dan River in North Carolina.

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Flexible Evaporation Solutions

Walked around the exhibit hall at the Denver SME convention.  Chatted to old friends and met new people–and learnt of new products. Suddenly my mind was cast back to my days as a kid on the East Geduld Mine in South Africa where we grew up.  The area was arid; there were no natural water bodies within two-hundred miles.  One of our favorite places was the mine’s evaporation ponds.  On our rickety bicycles we would break through the flimsy security gate and spend hours around the ponds.  They were magic: a wonderland of color and water.  Better than those fountains at the Bellagio in Las Vegas. (more…)

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This week I had reason to go back and re-read three papers I co-authored in the early 1980s.  It is surprising how far advanced we were then, and how little things have changed, or how little of what did has become standard practice. The first paper is at this link.  Rick Call was the lead on the work we describe in this paper.  He was a large buff man, with an enormous beard, a perpetual pipe, and a totally irreverent attitude towards authority.  He sent Ned Larson and me to Texas, where we sweated through the heat to get the data.  Then back to Tucson to do the calculations.  I recently reconnected with Ned who is now in Las Vegas and the grandfather of sixteen grandchildren.  He is still with the U.S. Department of Energy which he joined after working with me for five years on the UMTRA Project in Albuquerque.  He is a great engineer, as was Rick. (more…)

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In my last week in southern Spain, we took a walking tour of Rota, the town just besides the Spanish Naval Base where four United States Destroyers are soon to be stationed.  The folk of Rota organized and paid for the tour which included a Spanish breakfast and lunch tapas.  I enjoyed the beer that came with the tapas. Some reflections on Spain now that I am on my way back to North America: Everything is well designed, but nothing works properly.  (more…)

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Today I took the ferry across the bay from Puerto Santa Maria to Cadiz.  Took a bike and rode around the city sea-wall and around the old city center.  It is a great ride around the sea-wall.  It reminds one of the age of some engineering works. For here we have fortifications that have been four hundred years in the making.  I saw forts and castles built three hundred years ago to defend the city from the French, the Brits, and the Dutch, who attacked at different times. (more…)

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I am in Guatemala and at the Tahoe Resources Escobal Silver Mine. I have previously noted that I and my daughter are the engineers who designed and now give advice on the operation of the filter-pressed tailings stack. Much credit must also go to Flor de Maria Gonzalez and Sergio Aycinena of Geosimsa who are the engineers of record in Guatemala. We have worked closely with them these past four years and both have proven sound partners. Particularly Flor who as a young woman has made her mark by her excellence in a male-dominated Guatemalan mining environment. (more…)

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Here is the outfall of the Pebble Mine and Mt Polley Mine debacles.  A report on the Seabridge Gold’s KSM Mine in BC.  The report is authored by Salmon Beyond Borders, a coalition of Alaska Native tribal members, commercial, sport and subsistence fishermen, and other groups, in consultation with Earthworks.  The press release is at this link.  The full report is at this link.  Here from the press release on the five key risks associated with the mine: (more…)

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