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Lethbridge Herald Newspaper Archives

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Lethbridge Herald, The (Newspaper) - April 24, 1974, Lethbridge, Alberta April 24, 1974 THE LETHIRIDOC HERALD 43 Garbage too valuable to burn Water, water everywhere Verdin Baxandall tries to help the ice floes along in a field near his Barrhead, home. OTTAWA Garbage Is much too valuable to burn, says a Queen's University professor of chemical engineering. With today's escalating prices for paper, glass, plastics, and scrap metals and tomorrow's promise of even higher prices resulting from developing shortages and soaring energy costs, recycling garbage will become not only practical, but necessary, perhaps even profitable Reginald Clark said in an interview at a Royal Society seminar on waste revycling. Burning garbage, by contrast, not only costs large amounts of money in constructing large and expensive incinerators, but it results in extracting only 25 per cent of the energy used to make the material in the gar- bage. Thus, Or. Clark suggests, it turns out in the long run to be an expensive fuel, since re- placement paper, plastics, and glass, for example, will have to be constructed with higher and higher cost energy. Just as important, building garbage incinerators on scales in Canadian cities, such as are already, being proposed for Toronto and planned for the federal capital region, will Sears Lightweight, handy portables for youngsters on the go a-New compact size Stroll-R-Crib At a great price! Use. as a-stroller carriage or travel bed. Flat-fold chromed steel frame. Lined with white vinyl Sani- gard." Attractive plaid exterior. Large 9" spoke wheels roll easily on nylon bearings. b-Full size sleeper stroller For baby's comfort. .4 position high backrest and chromed adjustable foot rest, removeable canopy. Heavy duty steel frame in a 2-tone green with white, green flora! trim. Single wheel brake on 7" easy pushing. Foam padded upholstery domes on strollers. Blue vinyl. Reg. 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Telephone 328-9231 tend to serve as a serious dis- incentive to consumers reclaiming paper and glass, such as is being done very successfully in the Ottawa and Toronto areas today. Dr. Clark explained that re- moving a large proportion of the paper content from the garbage that is to be hauled away and burned in effect removes a large proportion of the energy to be extracted from burning the garbage. A a rough estimate, if you can remove 25 per cjent of the paper, as Ottawa and the sub- urb of Kanata often do via pa- per pick-ups and separate paper disposal for recycling, then this removes about 25 percent of the heat energy available from the refuse. Some municipal garbage in- cinerating schemes advocate using steam produced by heat from the burning refuse to heat homes or even produce electricity. Thus, the more successful the recycling of paper and eventually of high heat- producing plastics at the consumer level, the .less efficient and more costly producing usable heat by burning the garbage becomes, Mr. Clark argues. Cities that sink large amounts of money into building garbage incinerators would want to dissuade people from separating out materials that could be recycled, to save the initial, large investment. Professor Clark advocates a two-stage garbage recycling process. First, there would be a "front-end" sorting and separating stage, where existing technology would be used to remove the paper, glass, usable ferrous and non- ferrous metals, and even plastics, for recycling by industry, Even today, paper and glass can be recycled at a modest profit. Second, what's left would be ground up and, preferable, composted in the "back-end" stage. The compost, which would be sifted to remove any remaining metal, plastic and glass, could then be used as fertilizer, topsoil or even fuel, Mr. Clark says. Just from the value of the components of typical garbage today, the garbage is worth about a ton. But as a fuel for an in- cinerator, it might only be worth a ton. It would be cheaper to produce electricity and heat with nuclear energy Mr. Clark suggests. Professor Clark, who in 1971 unsuccessfully advocated the construction of a pilot refuse recycling plant to handle all garbage of Kingston, says that Canada is woefully unprepared technologically to take advantage of coming age of recycling'garbage. He proposed that the lion-a-year garbage business should be spending at least a year on research and development. At present, Ottawa and the provinces spend at most which hasn't produced much in the way of technology. He also proposed that Ottawa launch a Crown Corporation in garbage recycling, to act as the basis of an all-Canadian in- garbage recycling industry that could be very profitable in the not-too- distant future. The proposal Kingston pilot plant would have handled 200 tons of garbage a day; would have cost to build; and would.have produced sa- leable paper, glass, metal and compost. The proposed Toronto refuse incineration plant would cost more almost million to build and would handle about 1200 ton a day. Sears Safety-first quality work boots with steel toes and midsoles Now you can get sturdy workboots with safety features at low, low prices! These quality Wearmaster boots have CSA approved steel toes and steel plate midsoles to prevent injury from sharp-object punctures. Made with good, durable leather uppers, genuine goodyear welt construction. Treaded foam rubber outersoles are oil-resistant. Choose either 8" high-cut or 6" low- cut work boots. In EE (wide) width, full sizes 6 to 12. In Tan. 6" boots 8" boots 23" Lightweight boots with steel Lightweight, flexible workboots are expertly made for comfortable fit, durable wear. Premium quality glove leather uppers are riveted at strain points. Heat-sealed, oil resistant outersoles. Plus, there's a 6 month guarantee that soles will not separate from uppers. In EE (wide) width. Full sizes 6 to 12. Tan. Mechanics' oxford with steel 'Dressy1 style work shoe has CSA approved steel toe. Long wearing glove leather uppers, genuine goodyear welt .construction. Oil-proof neocomp. sole and rubber heel. Black. D width. Full sizes 7 to 11. 8 in. 23" 2299 Simpsons-Sears Ltd. at Simpsons-Sears you get the finest guarantee satisfaction or money refunded and free delivery Store Hours: Open Daily a.m. lo p.m. Thursday and Friday a.m. lo p.m. Centre Village Mall. Telephone 328-9231 ;