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Lethbridge Herald Newspaper Archives

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Lethbridge Herald, The (Newspaper) - June 26, 1973, Lethbridge, Alberta 8 THE IETKB3IDGE HERALD Tuesday, June 26, 1973 Vancouver processor distills carbon from garbage and tires NORTH VANCOUVER (CP) Davidson has found. 2 new way to fight makes carbon from any kind of organic waste, even tires. The patended process has s complicated name but e simple theory. The Delta Cameron Process for Destructive Distillation by Pyrolysis simply involves heating the waste until the oil and gas are driven off and a33 that is left is pure carbon. Mr. Davidson said pyrolysifi Is an age-old process and goes back centuries to the original method of producing char- coal. He is president of Belt En- gineering and Research Ltd.. which has been primarily in- terested in pollution control sine it was founded in 1964. Old tires, dogfish, restau- rant garbage, sewage, bark, chips and all are loaded into the oven of the prototype model. Heated with degree steam and fed a controlled rrninmit nf air then baked for up to 14 hours Tire-shaped The gas and oil are tapped find what is left is 98-per-cent pure carbon, sometimes in the shape of the original tire or dogfish. "As far as the carbon goes it's a 10-to-l said Mr. Davidson. Other useful byproducts re- sult, depending on the waste Hog fuel produces turpentine and acetic acid. The carbon can be sold for use in filtration, clarification, odor control and other purifi- cation processes. The gases and oils can also be sold, or used to fire the steam-produc- ing unit in the process, which reduces the cost of the proc- ess to practically nothing. Mr. Davidson said. it will lake and nine months to develop a commercial uni} capable of reducing 50 tons of waste a day through a contin- uous process operation. This would be a vertical unit. The waste, fed by con- veyor, would pass into s ver- tical retort through an sir- lock star valve. He said a commercial unit's cost would be based on its daily capacity: to a ton of refuse processed. Two units The first two units built now are used in co-inventor Eric Cameron's air p u r i f i c a lion businesses in Yakima, Wash. Delta Engineering, based in North Vancouver and started in 1964 by Mr. Davidson, has been primarily interested w pollution control. With a permanent staff of 11 and an annual gross in- come of to Delta has worked for foresi products companies and refi- neries in British Columbia and Alberta, working on com- bustion engineering. "Water and air puriricsiion are our two main fields and we use a lot of carbon in these processes." Two major Japanese corpo- rations have taken an "eval- uation agreement" option and are trying to decide whether to underwrite the cost of de- veloping a commercial waste disposer-converter in return for subsequent manufacturing rights. Representatives from the companies spent 17 days here watching Mr. Davidson put the prototype through its paces. If the Japanese bow out of die venture, Mr. Davidson pects to seek federal govern- ment assistance, He added that he has no plans to the company ptAlic. Mi. HJC VAJOV UJ. J OUTSTANDING BIGSAVINGS Reg. 499.95 374 .39 TRUCK LOAD PRICE 498 .37 LIMITED TIME SPECIALS HURRY DOWN TO THE BIGGEST BRAND STAND IN TOWN AND SAVE 23e> 13th ST. N. and COALDALE FriONE 52S-5541 CLOSED MONDAY OPEN THURS. and FRL TILL 9 P M. ;