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Show 4 F The Salt Lake Tribune, Sundav, October 10, 1971 Kennecoit Adds Equipment The wags used to xav, as with the weather: "Evety-bodtalks about pollution, but nobody does ar,vtnmg about it. That cliche no longpr .s valid. Theres plenty being done to control pollution In fact, control efforts by copper producers are enormous and for all indications will increase significantly, Kennecott r'opper Corporation, for example, estimates that smee 1945 it has spent on million $100 projects directly or indirectly related to efforts to reduce its effects on the environment. In its driyp to meet new' emission control reglations, the company expects to spend another befoie 1975. $100 million-pluIn " addi'ion, new sulfur-contrequipment is expected to increase operating costs by some $30 million annually acid sulfuric With five plants in operation at its Smelter, Kennecotts Utah Copper Division is one of the emission of approximately 94 percent of all sulfur in ore taken from its Bingham Canyon mine Acid produced at the Ulah smelter near Magna is used in Kennecott's own leaching and copper refining operations or n sold the lntermountam area The five acid plants have a daily capacity of 1 300 tons of sulfuric acid Capturing sulfur oxides and producing acid is a principal facet of Kennecott's environmental control efforts A major thrust of the company's research at thp mument is aimed at the .35 to 40 per cent of the sulfur in smelter feed that escapes to the atmosphere Most of this is sulfur dioxide emitted in a very weak gas from the reverbeta-toifurnaces about 1 percent sulfur dioxide which is to treatment not amenable and capture by conventional Acid sulfuric acid plants plant feed is 4 percent or more sulfur dioxide gas produced by the converter furnaces the smelters second step. Therefore, the major problem copppr smelters face is the thinned-ou- t sulfur dioxide gas that escapes from the reverberatory furnaces. The answer must come either as a new process by which such furnace gas can be cleaned or through enrichment of Eie gas so it can be user in conventional acid recovery plants. Thp technology to solve this dilemma has not yet been developed but research is proceeding in a pilot plant at Kennecott's Nevada Mines Division, McGill, Nevada, and elsewhere the throughout world. Other environmental control y o terms according m i i e 1 c I c it 8 d d li c of to y copper smelters sulfur recovery, Engineering & The Utah Mining Journal. smelter recovers 60 to 65 percent of the sulfur in its smelter feed The Ulah Copper Division the recovers or prevents 25 Percent The annual mortality from Inserts and disease in the forests of the Western states alone is about equal to 25 percent of the total sawtimber harvest from the same states. In some cases, salvaging the timber is difficult or impossible because road systems are inadequate. ti effor s by ICennecott include the long standing battle with tailing pond dust near Magna. In order to free the mineral-bearinparticles m 'he ore, it must be ground to powder-fin- e consistency But when it dries out it is easily moved by wind action' js3? A K V' if i v 'i g For years Kennecott nas attacked the dust problem, w'lth notable success. Still no solu- One of tion seems the tarhest and most effective means of control was water Efforts were made to divert tailing streams over the dry sections in rotation, using movable lightweight pipe with outlets at regular intervals. are Huge "water wagons used on occasion with spray attachments, to dampen dry sections of the 5,300 - acre tailing pond. Various chenvcals have been used to form crust over loose, dry tailing. These are applied by spiayrng from land vehicles as well as from an craft, combination of selective that is, coarse ing buildup tailing on the perimeter of pond, fine failing inside; controlled water flow, spraying and chemical crusting, Kennecott keeps a pretty tight lid on its tailing pond except under the most unpredictable fool-proo- C It ft ' A r. , v ss ... $ W rf , ' ( YOU CANT BUY A BETTER GAS FURNACE THAN THIS, ANYWHERE! Economical to install, operate ana maintain Compact, amartly atyted, quiet Balanced heat, cont nuoualy filters air I F-- 8 487-087- 11 P fl KEATING & ELECTRIC 145 West Burton Ave. n ALL STARTED WITH anti-litt- ADAM'S APPLE CORE. er Major soft drink companies are researching and test marketing new kinds of disposable containers. The glass and metal industries have launched programs to collect and recycle used cans and bottles. New methods of collecting all kinds of litter are being analyzed and developed. F P O a toss. Then there was litter. And no paradise has been spared since. Wherever humans have trod, a mess has followed. Yet in spite of our thousands of years and millions of inventions, the best solution is as simple as it ever was: Don't litter. There are realistic laws. Fnforced to the hilt. Public information and education campaigns. With special efforts directed to the young. Research on new methods of waste collection, separation and disposal. But still, we'll never have an unlittered land without your J help. This year, support your local trashbasket. I at tiW A bite, I fil f fftJI 2 the advanced technology and special programs in the world won't help unless you help too. Yet all Think before you throw. it begins with px TO DO SOMETHING YOUR ENVIRONMENT. HELP si th S Pi si Plant OXYGEN GROWING, 9 LIVING PRODUCING, Pi Cf w m GROW to nc GROW HELP AS VALUE IN fa m WILL WHICH PLANTS IN SIZE, AS OUR CLEAR THEY THEY AIR, fa. NATURE'S to WAY. foi tiv re ca lio PLANT gr ne TREE CONSULT YOUft IOC41 NUKSCkYMAN UTAH NURSERYMEN'S ASSOCIATION Salt Lake Area Homes iSSP OPEN TODAY! rV ' - For the Buy of Your Life! There's an open market on "Home Sweet Homes." Take your first step toward happier living. Turn to the Want Ads now! n$Z$$ooKH or Sell yours now with a hmely Want Ad. A friendly can help dial Just you. Ad-vts- 521-353- er 5 FOR THIS OPEN WATCH FEATURE EVERY s 6 AIRE-FL- Salt Lake City, like most metropolitan areas, has seen many changes in the environment oer the years. b fr wfroy When You Deal With E 10 nf thi furnoc Uraqw cot won corry o r peril exchange defect on. mcwwfocluong ogams tJmg the ortgtnoi purchaser to o new, tumece. comoorabl g Call V bl fctat Cxcijangtr Warrant? FOR FAST & DEPENDABLE EMERGENCY REPAIR SERVICE DAY A NIGHT -VA- LLEY-WIDE wide-tracke- d Continued on ALLSE FURNACES ARE ADAPTABLE hoadifijbtibbdbaiibtfbutf' 25-Y- r. TO AIR CONDITIONING h b a . HOUSE SATURDAY AND SUNDAY o . |
