Organic Priorities

Smallaxe

LawnSite Fanatic
"PAM is synthesized from natural gas and was originally used about a half century ago for soil conditioning."

"The surface attractions enhance particle cohesion, which helps to stabilize soil structure against shear-inducing detachment, thereby preventing transport in runoff. PAM applied in irrigation water is irreversibly adsorbed onto the first few mm of soil encountered during infiltration. Thus, to be effective, only a thin veneer of soil needs to be stabilized."


Which is more, "ORGANIC"???

Preventing Erosion? or Outlawing Synthetics?
 

Kiril

LawnSite Fanatic
Location
District 9 CA
Axe ..... would you please stop with the unreferenced and out of context quotes. Beyond that, you might benefit us all if you would do some more research on PAM before you comment on it.
 

phasthound

LawnSite Fanatic
Location
Mt. Laurel, NJ
"PAM is synthesized from natural gas and was originally used about a half century ago for soil conditioning."

"The surface attractions enhance particle cohesion, which helps to stabilize soil structure against shear-inducing detachment, thereby preventing transport in runoff. PAM applied in irrigation water is irreversibly adsorbed onto the first few mm of soil encountered during infiltration. Thus, to be effective, only a thin veneer of soil needs to be stabilized."


Which is more, "ORGANIC"???

Preventing Erosion? or Outlawing Synthetics?
Neither. But is that a relevant question?
 

phasthound

LawnSite Fanatic
Location
Mt. Laurel, NJ
Axe ..... would you please stop with the unreferenced and out of context quotes. Beyond that, you might benefit us all if you would do some more research on PAM before you comment on it.
He reverenced the quotes in a previous post. Perhaps you could present your point of view?
 

ArenaLandscaping

LawnSite Member
Polyacrylamide....... Polyacrylamide (PAM) is a synthetic, high molecular weight organic polymer. Depending on the difference in molecular structure, PAM can be classified as linear or cross-linked polymers. Linear PAM dissolves in water and is used to control soil erosion; cross-linked PAM is a granular crystal that absorbs hundreds of times its weight in water. Since 1995, linear PAM polymer granules have been used commercially as effective erosion-fighting weapons. It can enhance infiltration in many soils. Linear PAM works best on silt to clay-textured soils. Nationwide, about 400,000 hectares were treated with linear PAM in 1999. In the following discussion, PAM refers to linear PAM, unless otherwise indicated.

PAM can be manufactured as a neutral, cationic, anionic, or amphoteric polymer of varying chemical and physical properties, molecular weights and lengths. There are actually hundreds of specific PAM formulations, depending on the polymer's chain length and the kinds of functional groups substituted along the chain. Shown in Fig.1 is one of the repeating monomer subunits in a PAM polymer. When a percentage of the amide (-CONH2) groups are substituted with other functional groups, the polymers will vary in ionicity and chemical reaction in the soil due to the substition. Anionic PAMs, some having more than 100,000 functional subunits, are used extensively nationwide for potable water treatment, dewatering sewage sludge, washing and lye-peeling fruits and vegetables, clarifying sugar juice and liquor, thickening and suspending agents in animal feeds, manufacturing paper, mining and drilling applications, and other industrial applications. PAM is synthesized from natural gas and was originally used about a half century ago for soil conditioning.


http://esce.ucr.edu/soilwater/spring2001.html
http://en.wikipedia.org/wiki/Polyacrylamide
http://www.cabmphandbooks.com/Documents/Construction/Ec-13.pdf
 

phasthound

LawnSite Fanatic
Location
Mt. Laurel, NJ
What does that have to do with this post? Perhaps you also need to learn how to properly reference a quote and not take them out of context?
I don't understand what point you are trying to make regarding PAM. Please explain it so even I can understand it.
 
OP
S

Smallaxe

LawnSite Fanatic
:laugh: Well that was worth the time and effort... :laugh:

Phasthound answered the question, with an honest answer which is always appreciated...
So I will answer him... It is relevant in the sense of priorities... Are we anti-synthetic, anti-technology and/or anti-pollution? When synthetics are dumped into our environment to "help" the eco-systems, as is supposed in this case... Should it just be accepted as 'a good thing'?
How do we assess when an 'organic worldview' should embrace synthetic techologies???
 

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