Researchers from the University of Illinois have discovered a way to remove arsenic from drinking water at its source. (photo by David
Guglielmo)
Researchers believe they have found a way to reduce
arsenic levels in drinking water. They say, for people to drink water from wells or aquifers, the solution starts at the source. The Great Lakes Radio Consortium’s Jeff Bossert explains:
Transcript
Researchers believe they have found a way to reduce arsenic levels in drinking water. They say, for people to drink water from wells or aquifers, the solution starts at the source. The Great Lakes Radio Consortium’s Jeff Bossert explains:
Chronic exposure to arsenic in drinking water has been linked to a variety of health concerns, including hypertension, cardiovascular disease, and cancer.
Researchers from the University of Illinois collected groundwater samples from 21 wells. They found that the wells with almost no arsenic in the water also contained high levels of sulphate-reducing bacteria, which convert the arsenic into a solid, where it drops out of the water. Dr. Craig Bethke led the study.
“What we’re saying is that if there’s sulfate in the water, then there’s probably sulfate-reducing bacteria active in the subsurface, and that means that a simple field test, which is very inexpensive and very rapid to protect sulfate, could identify safe water sources.”
Bethke says places where aresenic levels are high, sulphate salts, such as gypsum and calcium sulphate, can be injected underground to reduce arsenic levels.
Researchers say this information could prove to be invaluable in places where aresenic contamination is a major problem, including parts of the U.S., Australia, and Mongolia. The researchers’ findings were published in the journal Geology.
For the Great Lakes Radio Consortium, I’m Jeff Bossert.
While the idea of cleaning up the water with bacteria may be oxymoronic, Michigan State University is saying that it works. (Photo courtesy of the National Science Foundation)
Scientists in the Great Lakes region are seeing good results from a new method that fights groundwater pollution. The Great Lakes Radio Consortium’s Erin Toner has more:
Transcript
Scientists in the Great Lakes region are seeing good results from a new method that fights groundwater pollution. The Great Lakes Radio Consortium’s Erin Toner has more:
Researchers at Michigan State University are using a process that introduces microbial bacteria into contaminated aquifers. Over time, the microbes break down hazardous waste, usually from industrial spills. Before this new technology, the most common cleanup technique was called “air stripping.” That requires groundwater to be pumped to the surface, where toxic chemicals are basically blown out of the water and into the air.
Professor Mike Dybas says the new process doesn’t leave pollution in the ecosystem.
“It’s treatment actually occurring where the pollution is, and it is physically destructive of the contaminant. So at the end of the day, the contaminants are broken down into harmless end products.”
Dybas says the process could be used in any type of industrial or agricultural spill. He says since the microbes move with the water, cleanup could stretch for miles underground.
For the Great Lakes Radio Consortium, I’m Erin Toner.
The proposed Annex 2001 agreement is the subject of lively debate as to whether it will help or hinder the conservation of the Great Lakes (Photo by Jeremy Lounds)
In 1998, an Ontario company wanted to sell Lake Superior water overseas. Their proposal raised fears that Great Lakes water could be diverted with little oversight. Now, officials from the eight states and two provinces in the region have come up with two proposed agreements that would regulate new water diversion requests. The proposed agreements are known as the Annex 2001 Implementing Agreements. Great Lakes Radio Consortium commentator Cameron Davis says the agreements are a good first step in protecting a cherished resource:
Transcript
In 1998 an Ontario company wanted to sell Lake Superior water overseas. Their
proposal raised fears that Great Lakes water could be diverted with little oversight.
Now, officials from the eight states and two provinces in the region have come up with
two proposed agreements that would regulate new water diversion requests. The proposed
agreements are known as the Annex 2001 Implementing Agreements. Great Lakes Radio Consortium
commentator Cameron Davis says the agreements are a good first step in protecting a cherished
resource:
When I was growing up, my family and I used to go to the beach every Sunday. As I stood
looking out over Lake Michigan, I was awed at how it seemed to go on forever. Today I know
better. The Great Lakes are a gift left from the glaciers thousands of years ago. That’s
because less than 1% of Great Lakes water is renewed every year from rainfall, snowmelt,
and groundwater recharge.
Two proposed agreements by the states and provinces would make diversions of Great Lakes water
to places outside of the Great Lakes a virtual impossibility.
The agreements look to be a vast improvement over current laws. First, federal law in the U.S.
allows a diversion only if every Great Lakes Governor approves. That seems like a tough standard
to meet, but in fact, it’s already allowed two diversions of Great Lakes water to take place. In
the 1990’s, diversions were approved to Pleasant Prairie in Wisconsin and another one to Akron,
Ohio. The water was used for municipal supplies.
Second, the proposed agreements are an improvement over the Boundary Waters Treaty – a pact
signed between the U.S. and Canada almost 100 years ago. The treaty doesn’t cover one very
important Great Lake: Lake Michigan. Because Lake Michigan is solely within the U.S. and not
shared with Canada, the treaty leaves the lake unprotected. This is a problem because Lake
Michigan is directly connected to Lake Huron. So water diverted out of Lake Michigan means
water diverted out of Lake Huron.
The agreements are a good first step, but they need to be stronger. For example, they require
regional approval for diversions of water that go outside of the basin of more than one million
gallons per day, but they don’t require regional approval for withdrawals of up to 5 million
gallons per day that stay in the Great Lakes. In addition, the draft agreements need to do a
better job at requiring water conservation before potential water withdrawals can be considered.
We have a choice. We can be against the agreements and keep the status quo or work to make
them even stronger. We need to work to protect our region’s water so that our kids can continue
to look out over the Great Lakes and see them for what they are: vast, magnificent, but fragile
natural treasures.
Host Tag: Cameron Davis is the executive director of the Lake Michigan Federation.
The Environmental Protection Agency says it might impose new restrictions on airports. Officials with the EPA say de-icing chemicals used on planes and taxiways can contaminate surface water. The Great Lakes Radio Consortium’s Celeste Headlee reports:
Transcript
The Environmental Protection Agency says it might impose new restrictions on airports.
Officials with the EPA say de-icing chemicals used on planes and taxiways can
contaminate surface water. The Great Lakes Radio Consortium’s Celeste Headlee
reports:
Many airlines spray ethylene glycol on planes to melt ice and frost. The EPA says that
chemical can endanger wildlife when it enters nearby water bodies. The agency
estimates that 21 million gallons of de-icing fluid are discharged from airports every year.
The EPA plans to study de-icing chemicals to determine whether any restrictions are
necessary. Claudio Ternieden of the American Association of Airport Executives
acknowledges de-icing chemicals may have an environmental impact, but says the issue
is not as simple as it seems.
“I think it’s important to remember, this is a safety-based industry and what we’re trying
to do is make sure folks are flying safely. That’s the primary goal of our industry.”
Many airports already use strict treatment or recycling programs for de-icing fluid. Last
winter, the Detroit Metro Airport recycled about 850 thousand gallons of the fluid, more
than any other airport in the world.
The EPA predicts it will complete its study of de-icing chemicals in three years.
For the Great Lakes Radio Consortium, I’m Celeste Headlee.
The Great Lakes from space (Color satellite photo courtesy of NOAA).
Leaders of the states and provinces around the Great Lakes have released two draft agreements to manage the region’s water supply. The proposals’ aim is to block any attempt to divert water from the lakes to drier parts of the world. The Great Lakes Radio Consortium’s Sarah Hulett reports:
Transcript
Leaders of the states and provinces around the Great Lakes have released a draft agreement to
manage the region’s water supply. The proposal’s aim is to block any attempt to divert water
from the lakes to drier parts of the world. The Great Lakes Radio Consortium’s Sarah Hulett
reports:
There’s no immediate threat by outside interests to ship or pump large amounts of Great Lakes
water to the arid Southwest, or to any other part of the world that needs freshwater. And the
draft agreements aim to keep it that way.
There are two documents up for consideration by the public and policy makers. One would be a
binding compact between the states. The other would be a voluntary agreement between the
states and provinces.
Ohio Governor Bob Taft co-chairs the Council of Great Lakes Governors – which released the
plans.
“The whole effort is premised out of our concern that we have a legally enforceable framework,
and a clear standard.”
There’s already a federal law on the books that allows any one Great Lakes governor to veto a
diversion of water from the lakes. But there are concerns about challenges under the U.S.
Constitution, or free trade agreements.
The Great Lakes Charter Annex would require the approval of all eight states for any proposal to
divert more than a million gallons a day out of the basin. Even if a diversion is approved, there’s
a catch: whatever’s taken out of the basin would have to be returned once it’s used.
Noah Hall of the National Wildlife Federation says the practical effect of those requirements
would be a guarantee that the lakes don’t get pilfered by drier parts of the U.S….
“…Where they have growing populations and dwindling supplies of water, and they’ve been
looking at using the Great Lakes to meet their water needs for some time. I think they’ll
obviously see this agreement for what it is, which is a pretty large barrier – perhaps an
insurmountable barrier – to accessing Great Lakes water down the road.”
The agreement would also allow any three states to block withdrawals from within the basin of
more than five million gallons a day. Existing users would be grandfathered in, so only the most
mammoth project would likely come up for consideration – a new power plant, for example.
Hall says that means at most one project a year that would come up for review.
“But what it guards against is the threat of the absolute largest diversions. The massive
withdrawals. The ones that could by themselves harm or impact the Great Lakes, and lower lake
levels.”
Eventually, states would be required to put rules in place for managing smaller withdrawals
within the basin. Even under a best-case scenario, that wouldn’t happen for at least a dozen
years. But Ohio Governor Taft says the end result will be preservation of the lakes for future
generations.
“We have a responsibility as stewards of this precious resource – 20 percent of the world’s fresh
water supply – to protect and preserve it for the benefit of the people within the region, and that
is what the draft agreement is intended to accomplish.”
The plan is up for public review over the next three months. Each Great Lakes state would have
to sign off on the interstate compact. It would also require the approval of Congress. And the
fast-growing arid southwest has more representation in Congress every term.
For the Great Lakes Radio Consortium, I’m Sarah Hulett.
A new report says metropolitan Milwaukee is pumping so much groundwater, it’s pulling water out of the Great Lakes basin. The Great Lakes Radio Consortium’s Sarah Hulett reports:
Transcript
A new report says metropolitan Milwaukee is pumping so much groundwater, it’s
pulling water out of the Great Lakes basin. The Great Lakes Radio Consortium’s
Sarah Hulett reports:
Just west of Milwaukee runs a line that divides the Great Lakes basin from
the Mississippi River basin. Researchers at the U.S. Geological Survey say
the fast growing-communities that sit along that line are pumping enough
groundwater that it’s actually reversed the underground flow that used to go
into Lake Michigan. Instead, that water is coming out of the lake.
Noah Hall is with the National Wildlife Federation.
“What’s most shocking and disturbing about this, though, is that this
groundwater pumping that’s been going on is having the effect of draining
Lake Michigan of ten million gallons a day, and diverting that water out of
the Great Lakes basin, never to return.”
Hall says that water is going into the Mississippi River basin. He says the
USGS report illustrates the need for Great Lakes governors to regulate
groundwater – not just surface water.
For the Great Lakes Radio Consortium, I’m Sarah Hulett.
Soon, every Great Lakes state could have a water protection law on its books. Only one state still hasn’t passed such a law in order to comply with a 1985 regional agreement. We have more from the Great Lakes Radio Consortium’s Rick Pluta:
Transcript
Soon, every Great Lakes state could have a water protection law on its books. Only one state still
hasn’t passed such a law in order to comply with a 1985 regional agreement. We have more from
the Great Lakes Radio Consortium’s Rick Pluta:
Michigan Governor Jennifer Granholm has called on the State Legislature to pass a water
protection law. She says the state is almost 20 years late in coming up with regulations on large
extractions of water from lakes, streams and underground wells.
“In fact, it’s an embarrassment for this state that we have not adopted a water protection statute.
We are the only state in the Great Lakes that has not adopted a system for regulating our greatest
natural resource.”
Her action was spurred by a controversial new spring water bottling plant that pumps about 200
gallons a minute.
She says it’s also standing in the way of negotiating regional standards for water protection –
standards that could also be used to protect the Great Lakes basin from efforts to treat its water as
a commodity available for export outside the region.
For the Great Lakes Radio Consortium, this is Rick Pluta.
Junk cars dumped on the banks of the Illinois River. (Photo
by Romy Myszka)
Americans generate 14-billion tons of waste each year. Most of that trash winds up in landfills, some of it is recycled. But some of it slips through the cracks, winding up in illegal trash dumps throughout the country. Environmental officials are cleaning up a 7-acre pile of waste that was overlooked for so long that it caught fire a few years ago – and kept burning. The Great Lakes Radio Consortium’s Brad Linder reports:
Transcript
Americans generate 14-billion tons of waste each year. Most of that trash winds up
in landfills,
some of it is recycled. But some of it slips through the cracks, winding up in
illegal trash dumps
throughout the country. Environmental officials are cleaning up a 7-acre pile of
waste that was
overlooked for so long that it caught fire a few years ago — and kept burning. The
Great Lakes
Radio Consortium’s Brad Linder reports:
Tucked away in a non-residential section of South Philadelphia, just around the
corner from the
Philadelphia Airport, lies a heap of construction debris. The material was dumped
here years ago
by a demolition contractor, and left to rot…
Occasionally sparking up into flame, the densely packed wood, metal, carpet, and
other debris has
been smoldering below the surface for the past few years.
Down the street is a police impoundment lot, and the Water Department’s waste
treatment site.
And directly across from the dump is a series of community gardens.
Edward Burnabiel’s been tending vegetables here for two decades.
Burnabiel spends six days a week in his garden. He jokes that it would be seven if
his wife didn’t
drag him to church on Sundays.
A few years ago, he and his fellow gardeners noticed something unusual at the trash
pile across
the street. Every now and again, smoke would billow up from the site — and combine
with the
stench from the nearby sewer plant.
“The smell was awful when it started burning. It would stink, even to go by. It’s
bad enough we
have to smell the poop down there, but then we got to smell that too!”
The gardeners complained to the city. But the trash has been around for well over a
decade.
Kathleen McGinty is Secretary of the Pennsylvania Department of Environmental
Protection.
She says the contractor responsible for the mess has long-since disappeared. That
contractor,
Harold Emerson, also skipped out on a 5-million dollar fine for illegal dumping.
“About thirteen years ago, Mr. Emerson was contracted to take some houses down in
Philadelphia. As part of the deal, for a one year window of time, the agreement was
that he could
temporarily store some of that construction debris here. What Mr. Emerson
conveniently forgot
was the temporary part. And he just took off without ever having done that.”
Today, the trash pile is sometimes referred to as the “Emerson Dump.”
Environmentalists
worried that the burning trash could be a health risk. Construction debris can
include hazardous
chemicals like arsenic. But city Managing Director Phil Goldsmith says tests showed
the fumes
weren’t dangerous. Still, he says cleanup was long overdue.
“Fourteen years for something like this to be sitting around is far too long. And
it’s become a
nuisance. It’s been a place where our fire department has had to come to put out
fires. We should
not have allowed this to happen in the first place. And once it happened, we should
not have
allowed to have it continue here for so long.”
The Emerson Dump is hardly unique. There are illegal dumps all across the country.
But most
are hidden in forests or other out-of-the-way areas, and don’t have the high profile
that comes
with a flaming pile of trash in an urban setting.
Allen Hershkowitz is with the environmental group, the Natural Resources Defense
Council. He
says illegal dumping is often overlooked for more serious environmental concerns,
such as air
and water pollution, or global warming. But he says it’s still a problem
authorities must deal
with.
“In the next 10 years, this country will have to manage about 140-billion tons of
waste of
different types. More than 2/3rds are managed in ecologically inferiors ways,
landfills, surface
impoundments, or incinerators. When you illegally dump waste, you make it that much
harder
for that material to wind up being recycled or properly disposed of.”
Hershkowitz says illegal dumping is directly related to the cost of proper waste
disposal.
Dumping was most prevalent in the late 70s and early 80s, when strict environmental
regulations
led many landfills to close, driving up the costs of waste hauling. Illegal dumping
still occurs,
Hershkowitz says, but less frequently.
Pennsylvania officials are still hunting for demolition contractor Harold Emerson to
force him to
pay his 5-million dollar fine.
But in the meantime, state and city taxpayers are funding a 3-million dollar cleanup
effort. The
fire’s been extinguished, but cleanup efforts are expected to continue through the
end of the year.
For the Great Lakes Radio Consortium, I’m Brad Linder.
A company in the Great Lakes region wants to convert trash into fuel. You might have heard of plants that burn garbage to create energy. But this plant is different. This plant would convert organic trash into ethanol. The Great Lakes Radio Consortium’s Julie Grant reports:
Transcript
A company in the Great Lakes region wants to convert trash into fuel. You might have
heard of plants that burn garbage to create energy. But this plant is different. This plant
would convert organic trash into ethanol. The Great Lakes Radio Consortium’s Julie
Grant reports:
The walls of Genahol, Inc., are covered with pictures of Donald Bogner’s wife and
children. Bogner is a ruddy-looking man with a friendly attitude. He’s the kind of guy
who likes to get things done. He started Genahol seven years ago, with the idea that he
could turn paper, leaves, and grass clippings into fuel.
“The green waste is such a problem, because, what do you do with it? Well, you chop it
up, you mix manure with it, you package it, and sooner or later you finally say, hey, I
can’t sell this stuff.”
Bogner says Genahol can make fuel out nearly any plant material. A lot of green waste
winds up in landfills. But Bogner patented a new kind of process. It converts green and
paper waste to sugar, distills the sugar into alcohol and transforms the alcohol into
ethanol. Until now, ethanol has usually been made from corn or other grains. Bogner
says they’ve been surprised by how many products they can re-use to make ethanol.
Anything from stale beer, to old perfume, or factory-rejected candy…
“You just can’t imagine the volume when you start talking about Christmas candy canes.
And a bad batch of candy canes may be three million candy canes that a producer has to
destroy because they came out wrong in a batch or whatever. So, you know, three
million candy canes (laughs).”
If a Genahol facility is built, Bogner says it could convert anywhere from one hundred to
one-thousand tons of waste per day and make up to three million gallons of ethanol a
year. As long as the selling price of ethanol remains over a dollar a gallon, Bogner says
Genahol can make money. But he needs a deal. He needs a city that’s willing to let him
sort through the trash. It should be an easy sell, he says, because cities could save landfill
space and get a cut of the profits from ethanol sales.
“The hardest sell right now is that we cannot right now take them to a facility and show
them ethanol coming out of a spigot.”
And that’s the problem not only with Genahol, but with other companies that want to
convert waste to ethanol. Their ideas are theoretical. But Bogner says things are about to
change for Genahol. He’s negotiating a contract with the Solid Waste Authority of
Central Ohio, known as SWACO. It is in charge of trash in Columbus and owns one of
the largest public landfills in the country. Executive Director Mike Long is interested in
Bogner’s ideas.
“We are always looking for new methods, cost effective methods to reduce, reuse and
recycle the waste stream to reduce reliance on landfills. That is our primary purpose at
SWACO, to reduce reliance on landfills.”
SWACO already diverts yard wastes and paper from the trash stream, but there hasn’t
been much of a market for those products. That’s why Long says contracting with
Genahol makes sense.
“It’s being approached on, I think, a very conservative point of view, small scale pilot
project. Trying to minimize the risk to SWACO and the public from a financial point of
view.”
It might be a bit of a risk. SWACO and other trash managers got burned in the mid-
1990s by waste-to-energy facilities. Some plants were forced to close because they
emitted too much pollution. Genahol’s Don Bogner says the only emissions from his
plant will be carbon dioxide, which he plans to capture and sell for industrial use.
Bogner and SWACO are negotiating one of the first deals in the nation for a trash-to-
ethanol plant. Many entrepreneurs trying to sell similar ideas are having a tough time
making a deal. Monte Shaw, an ethanol industry spokesperson, says these companies
should hang on a little longer.
“It’s always harder to be first. It’s always harder to convince investors, and banks, and
government agencies, that this is going to work. ”
The government is considering tax breaks and financial assistance to encourage new
ethanol plants. One reason the government is interested is to cut dependence on foreign
oil. Another reason, is ethanol is a good replacement for MTBE in gasoline. MTBE has
been used to reduce ozone pollution, but the chemical has contaminated water supplies
and the government wants to phase it out. Don Bogner expects the move from MTBE to
increase demand for ethanol. He’s wondering if that means Genahol will be able to turn a
profit.
“That’s what my wife asks me, are we going to make money this year?”
For the Great Lakes Radio Consortium, I’m Julie Grant in Kent.
A company in the Great Lakes region wants to convert trash into fuel. This could be one of the first plants in the nation to convert organic trash into ethanol. The Great Lakes Radio Consortium’s Julie Grant reports:
Transcript
A company in the Great Lakes region wants to convert trash into fuel. This could be one
of the first plants in the nation to convert organic trash into ethanol. The Great Lakes
Radio Consortium’s Julie Grant reports:
The president of Genahol, Inc., says his facilities can make fuel out of nearly any plant
material. A lot of paper, leaves, and grass clippings wind up in landfills. But Donald
Bogner patented a new kind of process. It converts green waste to sugar, distills the
sugar into alcohol and transforms the alcohol into ethanol. Ethanol is usually made from
corn or other grains. Bogner says Genahol reuses other people’s trash.
“Genahol actually receives payment for its materials. Rather than going out and having
to pay a dollar fifty to two fifty a bushel for corn or something, we actually get paid on a
tonnage basis. So it can be very, very profitable.”
No Genahol facility has yet been built. Bogner and the Solid Waste Authority of Central
Ohio are negotiating one of the first deals in the nation for a trash-to-ethanol plant.
For
the Great Lakes Radio Consortium, I’m Julie Grant in Kent.
Researchers from the University of Illinois have discovered a way to remove arsenic from drinking water at its source. (photo by David Guglielmo)
