Letters

Letters 05-23-2016

Examine The Priorities Are you disgusted about closing schools, crumbling roads and bridges, and cuts everywhere? Investigate funding priorities of legislators. In 1985 at the request of President Reagan, Grover Norquist founded Americans for Tax Reform (ATR). For 30 years Norquist asked every federal and state candidate and incumbent to sign the pledge to vote against any increase in taxes. The cost of living has risen significantly since 1985; think houses, cars, health care, college, etc...

Make TC A Community For Children Let’s be that town that invests in children actively getting themselves to school in all of our neighborhoods. Let’s be that town that supports active, healthy, ready-to-learn children in all of our neighborhoods...

Where Are Real Christian Politicians? As a practicing Christian, I was very disappointed with the Rev. Dr. William C. Myers statements concerning the current presidential primaries (May 8). Instead of using the opportunity to share the message of Christ, he focused on Old Testament prophecies. Christ gave us a new commandment: to love one another...

Not A Great Plant Pick As outreach specialist for the Northwest Michigan Invasive Species Network and a citizen concerned about the health of our region’s natural areas, I was disappointed by the recent “Listen to the Local Experts” feature. When asked for their “best native plant pick,” three of the four garden centers referenced non-native plants including myrtle, which is incredibly invasive...

Truth About Plants Your feature, “listen to the local experts” contains an error that is not helpful for the birds and butterflies that try to live in northwest Michigan. Myrtle is not a native plant. The plant is also known as vinca and periwinkle...

Ask the Real Plant Experts This letter is written to express my serious concern about a recent “Listen To Your Local Experts” article where local nurseries suggested their favorite native plant. Three of the four suggested non-native plants and one suggested is an invasive and cause of serious damage to Michigan native plants in the woods. The article is both sad and alarming...

My Plant Picks In last week’s featured article “Listen to the Local Experts,” I was shocked at the responses from the local “experts” to the question about best native plant pick. Of the four “experts” two were completely wrong and one acknowledged that their pick, gingko tree, was from East Asia, only one responded with an excellent native plant, the serviceberry tree...

NOTE: Thank you to TC-based Eagle Eye Drone Service for the cover photo, taken high over Sixth Street in Traverse City.

Home · Articles · News · Features · The Smell of Money: Pumping gas...
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The Smell of Money: Pumping gas from landfills

Harley Sachs - August 11th, 2005
Here in the U.P we used to call them
bear pits. They were the open garbage dumps where tourists occasionally would try to
put their kiddies on the backs of hungry
wild bears in the hopes of getting that great souvenir photo, sometimes with unhappy results.
Turns out that calling our dumps bear pits was a misnomer. The proper name for what are
now officially sanitary landfills is money pits. Not only can municipalities reap substantial rewards from tipping fees of $90 a ton,
but they can also mine those mountains
of trash for valuable gasses and turn them into electricity.
That’s what R.G. Engineering Company of Webberville, Michigan is doing for
their clients.
If a landfill is designed properly, that is. Lined first with a heavy plastic to prevent seepage into the ground water, all those goodies stay put, waiting to be harvested. In particular, what Jon Rabitoy, president of RPG, is after is trapped methane.
We’re all familiar with methane. It’s
the gas we generate ourselves after a meal
of bad chili or cauliflower. We don’t generate enough to utilize other than to light as
a bachelor party prank, but a sealed landfill has plenty.
It works like this: gas wells are sunk from 30 to 90 feet in the landfill and a gentle vacuum sucks out the methane. It is then run through a battery of converters. Usually four are set up, with three always running while a fourth gets routine maintenance.
According to a confidential report from Rabitoy’s company, “Neenah/Menasha, Wisconsin developed a landfill over a 10-year period. The landfill was filled, capped and a collection system was installed 18 months ago. Today the landfill generates and flares 1,000 ft3/min of landfill methane gas, where the gas temperature is 96 degrees F and is delivered at 1 psig pressure to the flare.”
The electricity generated by this system is incredibly cheap, 2 cents a kilowatt hour created from the landfill gas which costs half a cent per kilowatt hour to recover.
The electricity is then sold for 5.5 cents a kilowatt hour, and the project’s net revenue is estimated at $475,146, with a simple payback for the project of 9.25 years.
Other systems can recoup the initial costs in less time, 5.1 years. Even more rapid payback can be derived from animal waste.
My brother was once part owner of a pig farm where the noxious waste was turned into methane to provide energy. They generated enough electricity on the farm to provide all their energy needs. A feed lot may produce many tons of animal waste. Anyone who’s lived within nostril range of one of those can testify to the noxiousness of that, but the electricity generated from that animal waste can recoup the costs of the installation in little over a year.
The electricity these systems generate is sold to the electric grid to supplement power generated by conventional plants. No wonder a landfill can turn into a profit for a municipality! They can collect at both ends.
What’s clear is that waste products from feed lots and city landfills can put a significant dent in our need for energy. I suspect that the Keweenaw bears are disappointed to no longer have easy pickings at our garbage dump, but if we go the way of Neenah/Menasha and other municipalities we’ll not only get some extra income, but we’ll utilize some of those infamous greenhouse gasses. Oh, and turn the stink to cash. You never knew the smell of money had an odor like that.
 
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