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Orono Weekly Timies, Wednesday, May 16, 1990-11 Synthetîc fuel from garbage made by new heat process Motoists of the future could bc running tbeir cars on gasoline derived from sawdust and cornstalks if an Ontaio chemical engineer bas bis way. Dr. Donald Scott, of the University of Waterloo, bas spent 10 years developing ' a procesa for manufactifring gasolmne and fuel oul from waste biological materiala, such as sawdust, wood chips. coin stalks, straw, bark md seed hulas. Now the proces as taken a fiuther stcp towards tbe marketplace with two commercial demonstration plants being designed, in Calgary and in Spai The Waterloo 'fast pyrolysiie proceas, WFPP. docs rapidly what it bas taken nature thousands of years to do. It involves. passing the waste materials, often referred ta as biowastes, inta a ',ed' of heated, air- supported sand, wbere tbey are converted a]nost instantly into a dark iquid. Thtis liquid cam be refmned and used as an alternative ta gasoline and domestic heating oul, says Scott. "TMe proceas is simple, requiring only moderately higb temperatures and normal pressures," he says. The Conadiant demonstration plant, capable of processing up ta 4.5 tonnes of waste a day ta produce several barrels of fuel. wil be m~ounted on a trailer so, it cmn be tawed around the country for demonstrations. I lnitially, it wil be taken ta Newfoundlmnd ta convert peat mess bita ebarcoal for backyard barbecues and water treatment plants. Most .cbarcoal now used in Canada is, imported from the. United State, aya_ Scott. He says bis process has sparked interest around Uic world, including in several European countries whicb se it as a means of reducing petroleum importsanmd solving waste disposal probleme. The Spanish demonstration plant reflecta Uic commnitient of Uic European Economnic Commnunity ta findig alternative forma of energy. be says. However, ic proces is stili too expensive for WPPP-made gasoline ta be a competitively.priced alternative to petroleum in thei imediate future, hie points out. Research funding was provkIdd by Energy, Mines and Resources Canada and Uic National Resarcb Council. (Cano4ksn Scence News) computer advi ses potato farmers A computer-backed, telepbone hotline is belping Manitoba farmers scbedule fungicide spraying against a crop disease, Uereby reducing the amnount of spraying tbey haie to do and cutting their costs - often by several Uousand dollars. The forecasting service gives potato growers information on Uic best time ta spray againt early blight, according ta Uic risk of Uic disease striking. Farm consultant Blair Geisel, 1wbo operates Uic service, says it saves farinrs money and is environmentaily beneficial because it reducea Uic number of fungicide applications needed ta controi Uic disease. Early bligbt, an airbome fungus, Urives on potata, plants during damp weather, causing brown spots on Uic leaves. The forecasting'system monitorsUic level of fungal spores in Uic air tlrough a network of traps in potato fields. This information is fed into a computer along wiUi data on temiperature, relative bumidity mnd leaf wetness collected fromn weather stations in the fields. 1"The computer prograxn is designed ta indicate when tbere is a risk of the early bligbt taking bold of Uic planta, according to, câmratic conditions." says Geisel, wbose company,, Gaia Consultancy, is in Portage la Prairie, about 50 miles from Winnipeg. Previously, fernmas startcd routine fungicidoe spraying when potato plants reached 15 centirnetres bigb ini late July and repeated it every 10 days until September 1, regardless of Uic actual risk of early bligbt. On average, Uiree ta five fungicide sprayings were applied MtheUi potata crop eacb season. Growers following Geiscl's forecasting Program are applying one or two fewer sprays. 1Last year, 55 f armers using the service eacb saved an average $7300 in farm cbemical cos, says Geisel. ýThe frecasting systemn was developed in thc United States amd tested for effectiveness in Uic Province by researchers at Uic University Of -Manitoba. (canadian Science News) YES! Get the facts, Let's Talk. Call the .Dntariq MNinistry of Health XDSHodine- I -;,So-668-AIDS THINKING 0F OWNING YOUR FIRST'HOME? sallystaples sales representative I111l Work Hard For You 623-6000- STAPLES UNIQUE COUNTRY PROPERTIES: Secluded Estate on Historical Home - il Acres Ganaraska River $117,900 Orono "Maintenance free exterior " Central Village location * Large back & front yards $119,900 Oshawa *Three bedroom townhouse - Ravine Lot * Finished basement also jin Oshawa: " Three bedroom semi-Iocated in north end, siding on a greenbelt ... just $139,900. 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