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Technology Stocks : $1B Mkt -(BUGS) Bio- Remediation of Polluted Soils -- Ignore unavailable to you. Want to Upgrade?

To: Frank Buck who wrote (17)	2/4/1998 10:18:00 AM
From: John Johnston	Respond to of 54

Hi Frank, Their throughput of 150 TPH (Tons Per Hour) is questionable they way they wrote it. They claim that this is based on no input factors for soil condition. So I assume they mean they can run 150 TPH with no treatment factor. Not to good of a claim. The biggest problem one runs into with soil remediation is the variables of soil condition. What I would ask is what is the throughput with say a damp 45% moisture content, 1000 PPM (parts per million) total petroleum hydrocarbon (tph) concentration. A number of other variable factors need to be considered, the weather conditions, does it have to be 60 F outside to achieve the optimum operating condition or can they run at say 32 F (freezing) without any concerns (I doubt it). A decent TPH rate would be around 25 to 50 tons/hour with a wet, highly contaminated soil level, with a remediation level of say 5 PPM or less when treated. Another thought here, do they add water to the soil during treatment, what happens to the residual water which is going to be contaminated ? Soil is general figured in the per ton basis for remediation work rather than cubic yard. Cubic yard is great for construction but not remediation. However, on an average 1 cubic yard of soil will equate to 1.7 tons, depending on the moisture concentration and moisture concentration is depended upon the geographic location of the site. You noted the various soil classifications i.e. clay, loam, semi-aggregated, etc. I'd wonder what their effectiveness is with each, or at least what they claim. Clay is extremely hard to remediate without adding or mixing with other materials, reason, it binds up and does not except heat, moisture and other types of "product" due to its natural reaction to bind up and become like concrete. It is a non porous soil grade, hard to deal with. Loam on the other hand is the opposite. Actual they should not use "TPH" a more accurate statement is ton/h or T/H, the acqonim (Sp?) TPH is generally referred to as Total Petroleum Hydrocarbon concentration with a given material. An interesting thought about the .35 Whelen, but then I'd have to redo all my loading gear to another calibar :<).. I really like the weight of the 06, so I'll probable just replace the barrel and keep the 06 a bit longer.