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11/03/09 | Report as spam
RE: EPA testing 'porous pavement' to filter pollutants in storm water
I applaud any research done on removing pollutants from our water and
food sources. Anything foreign to the body is going to produce an
autoimmune response with the body attacking itself. Babies are
particularly vulnerable to chemicals.
Waste water systems and the toilets we all use do not catch
chemicals, is the EPA addressing that? Do you know what they do with
human poop? Spread it on our agriculture even though it is loaded
with toxins, etc.
We have a toxicity ratio of 100% in newborns before they take their
first breath. Here is a link to the study done on polluted newborns.
It isn't definable as sustainable, we weren't checking the water for
chemicals. http://www.ewg.org/reports/bodyburden2/
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11/03/09 | Report as spam
RE: EPA testing 'porous pavement' to filter pollutants in storm water
storm water is inherently "dirty" when its mechanics are interrupted by impermeability. this is then called "runoff."
this issue was addressed, as a starting point, in the 1988 or so mods to the clean air and water act which reduced the degree to which soil can be made impermeable near available natural run off routes--streams and rivers.
"nature" has been experimenting with "rain gardens" for quite a while. it's called a swamp. by interfering with swamps, sloughs, etc in the name of "conserving land resources" a feedback loop got created.
there's nothing friendly or unfriendly about asphalt. at some point humans may evolve beyond animism to the point of wondering how things work, not how they "feel".
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11/03/09 | Report as spam
RE: EPA testing 'porous pavement' to filter pollutants in storm water
I would be concerned with the life of pavement and what type of loads it will be designed for.
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11/03/09 | Report as spam
This technology is being deployed at airports around the country...
...so I suspect that its load handling characteristics are similar to
that of traditional asphalt.
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11/03/09 | Report as spam
RE: EPA testing 'porous pavement' to filter pollutants in storm water
Any facility that will enable a filtration system that will remove
pollutants from our water as it is the dirtiest before it falls from
the sky due to acid rain. Then it becomes even dirtier when all
sorts of chlorine and lime is added to enable us to be able to drink
it, except it destroys all the pipes by furring them up in washing
machines, dishwashers and the like.
Really why we have it at all when it should be the best tasting and
cleanest fluid ion the planet, but man had other ideas as usual. Let
us hope that this becomes something that does not get tampered with
in the future.
Great article lads and keep up the good work. G
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11/03/09 | Report as spam
RE: EPA testing 'porous pavement' to filter pollutants in storm water
This is a good product but if you want better then i would recommend you this...
http://www.isopurewater.com/
i m sure you will be satisfied like me....
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11/12/09 | Report as spam
RE: EPA testing 'porous pavement' to filter pollutants in storm water
Asphalt pavements are, in fact, very friendly to the environment. Study's have shown conclusively that asphalt actually sequesters and holds Carbon elements, keeping them out of the environment, whereas other construction materials, such as concrete and cement actually generate corbon into the environment. The manufacturing process for making cement adn concrete generate carbon emission to the environment.
Additionally, there have been great advances in the use and disposal of tire rubber (from used tires) in asphalt pavemetns. Many states are now increasing the amount of Rubebrized Asphalt used in paving applications, thus reducing the amount and number of used tires going into the environment and getting a smoother, quiter and better performing roadway in the process.
Asphalt is the "Green" road construction material.
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11/17/09 | Report as spam
The same idea can reduce flash flooding!!!!
Storm runoffs frequently cause flash flooding. This is aggrevated by all the pavement that repels water rather than allowing it to soak into the ground. This product can reduce the intensity of runoff by allowing rain water to be 'stored' below the road surface where it is slowly drained in a controlled fashion. This increases the runoff time and hence reducing the runoff intensity.
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11/17/09 | Report as spam
water filtering
The described pavements are also in use in Montana.
Lime concrete absorbs carbon dioxide to transform into calcium
carbonate, though, generally, burning fuels is required to slake the lime int
the first place. But carbon dioxide is not a problem.
The main problems with human excrement are that it carries certain germs
unless properly treated, and accumulated heavy metals. In the 1800s
through early 1900s, there were periodic epidemics of cholera from having
out-houses and such too close to water sources, lack of hand-washing,
and such. Now, we've got so many people and livestock crammed into too
small of a space that such pathogens are difficult to escape (and still the
open borders/amnesty for illegal aliens crowd are pressing to increase
over-population and over-crowding).
Anti-freeze, lubricants, metal wear particles, birth control and other
hormones, aspirin, all sorts of things have been found in water supplies in
the last couple years. Some of these require specific treatments to break
them down or extract them. Some could be handled by swamps if we
weren't so over-populated and over-crowded that nature had the required
time for the beneficial bacterial and other chemical reactions to take place
from the time these things are dumped into the water by one person until
the water is drawn up for another to drink. The dispersed heavy metals
are difficult. For now, in the worst cases, people who have been over-
exposed can undergo chelation therapy.
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11/17/09 | Report as spam
RE: EPA testing 'porous pavement' to filter pollutants in storm water
So how well does this pavement resist the creation of potholes? In cold climates where you get hard freezes, having water permeate into the pavement, followed by freezing, is a perfect way to create a pothole. It might also cause "heaves" in the pavement while the water is frozen.
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11/19/09 | Report as spam
RE: EPA testing 'porous pavement' to filter pollutants in storm water
There's another approach going on with the concept of pervious pavement. I just attended a presentation yesterday that reported on its use to allow for stormwater collection. This could accomplish two objectives:1-reduce runoff which can lead to flooding by overloading stormwater conveyances, and 2- allows for the storage of stormwater to be used for such purposes as irrigation or other nonpotable purposes as toilet flush water.
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11/20/09 | Report as spam
RE: EPA testing 'porous pavement' to filter pollutants in storm water
REED-BEDS...They attract wildlife and look attractive into the bargain.
http://www.armreedbeds.co.uk/applications/Wastewater_Classification/stormwater/
Wastewater Treatment Works (WWTW) are designed to cope with the capacity of three times the flow which occurs in the absence of any runoff from rainfall. WWTW have storm tanks to handle some additional capacity caused by storms, where the storm water is fed back into the works for treatment during periods of low flow. Flows exceed this additional capacity is generally discharged over a weir directly into the receiving water body untreated.
Reed Beds can alleviate this problem by increasing the capacity of WWTW to hold storm water, whilst providing additional treatment. Due to the nature of filtration, reed beds will trap any large solids which evade the screening process. In addition to removing solids, reed beds will remove pathogens and reduce nutrients.
Reed Beds designed for storm water treatment differ slightly from conventional reed beds in that they have additional freeboard to cope with the influx of storm water. The reed bed can be utilised on its own or in addition to storm tanks to provide additional capacity....
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11/23/09 | Report as spam
Tax Dollars Wasted!!!!
The EPA could be doing a lot more with our precious tax dollars that wasting time on a product that is not viable for a majority of the cold climate roads.
This roadway would NOT last one winter in Michigan where salt and heavy traffic pound the pavement enough to pulverize it. ANY porous material would definately be destroyed over a short period of time.
They mind as well pave the roads with the actual dollars themselves. Why not,... they're durable enough for thousands of mangled transactions, washing machine friendly, and they seem to keep printing more and more each day. The road would be GREEN Literally, and we wouldn't have to worry about potholes. I'm sure people would be more than willing to lay down a couple of extra dollars to fill it. Other than people stealing large sections of road,...It's work. I know it sounds crazy, but no crazier than some other government programs out there.
There’s very little that’s environmentally-friendly about the asphalt used in roads and sidewalks across the country, but the U.S. Environmental Protection Agency is evaluating how to put it to use as a rain filtration system.
To collect water samples, the EPA has lined certain sections of the porous pavement test beds with geotextile fabric that are designed to drain accumulated runoff into a collection tank.
