1987-01-08_REVISION - M1977493 - Laserfiche WebLink

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•~'4 emical agent III .... ~bilizes dust - ~ Climax tailings oils and dams hlot.vnnrntat ('u rus c ohuur-rEn eatcnstve tesu ;< drat st.pnhrdu+ro at us Clunaa. Colo., operenons. ~r o(chcrmcal stahdven were icsted to detrrnune the c, most etlicrent, and move ecrnomrcal product for tg dust from taJmgs ponds and nn tailings dam ',e re+uUa n( thc•c tests led to the fine phase of the Ivtt1 m the < hmaa tarhn*< dust stahthtauon Wute rata Irom one of Chmarz achve IaJmgs ponds n drarm oll •„U, lc R:un, and high-.IIIrtUde ClimallC c,'n~ pr water mlaar and and pumped to Cohere+mmnq area. an nperahn~ drorsiun of AmcncJn A1etal C'Ir~ successful u•e al anJ aaina for c. tcsunc was earned Iwion ;o the pn~hlem of artfa.rnr tadmes dust at Clr >phal hs \\'rtc r. <'hrmrcal's holden Hear Ihv, of ld. (ahl , l'rherea w.ts tested at (hmaa and found I on a numhrr of crmn« A m .t Jduuon n(v I twain to agentl. one appir dx Ju•t rcunlaot pr.+vcd sultirwnt to hold down fact fur the Jurauun rf the annual Jry~ stavm mn+t •h Ricult test. ilte dust tetardani~ waa spreveJ nn .e wrt!r J aIU1K o! "^ to I The slope prescnteJ Myth :aeon anJ a rctcnunn ptohlcnt. \\'ater Ilowz over the nil hluws over tt. and rmnwatn and nxltcd snow run r fact •\tter four sea«. the Jam IJit surface IrcareJ better dust rccuJant rs snll hnlJmg up. wuh only a'Ith w.hte N afir. ? + IP I r,l prl, In ,l ,+"•~gJl Ur'.IIIOntor WI,R The t.utk Jnd spr.«~rr +gstem were de,rgr.rJ anJ hwh by CG- maa Jnd m~vmrJ an J I lcattu V.~Jw ell hrdv manufacture) in C.m rJ.t I he 1.. an has three sphty naulcs, wuh a fourth ntubr added lur sprasin: roads, So Ian, l~lunas crr+c+ hart vpr.«eJ Stl,lra) g,tl n( (l,herea dust retardant nuaeJ wuh 45(I,IXp gal of utdustrial water Gom nc~ rctcnnun p,nJs (hu,ng the tu•t phase of the tewng, crews have been spray ing the Jam Ctcet Jnd tree •urface o(an inaetiar pond that eur• rently sores as a hacAup to an achve prod. A single pass has pa,scn to he sulBcrrm fur ,mr sc anon, but C'Irrnar rcpr«s that tt is n,o cols t„ tell how well Ju+t will hr crmtndled after sev- eral water< tinnw depth roaches 1tLs yr m same are.ts of Clr- mas ,q+cratrons and snow funuvhes 74q, of the area-a 25~m.• per-tear pteuprt:tuon. Average annual temperature n less than \?•I~. wuh high temperatures m the mtd~7tk and low~t Dear tn'F. In aJdrnon to euhngs pond trcatmcnt. Chmar is alw ttu- ing the dust retardant nn open-pit haul roads and foe dust aanlntl m nc undrrgarunJ nperaunm ClnnJa ha+.J+o used ll+hcres at older taJrngs p,nJa now hemp reclatmeJ h} xcJmg with native grasses The chemrcal agent repurteJly helps m reseeding by holJrng surface sand (erusheJ mckl m plan while the seeJs gcrtnmate The area- u I I,Jtx)dt a!ntude. Ass a very abort growing seer nn d5 to 60 dayv so rodamapon pnsceeds slowly. Climaa is awperaung Trx4mountt0 dust retardant spray rM,de has a leeward a{rail Or 1 K mph Qne tank toad corm ap It swath 0 55 mr loop. wdh Ur Rill Rcrg of Colorado State Unnenuv m aludres to Jckrmme rtu I+evl grasses, shruha, and aces for the land rec• lamatron pro)cry. lhoueh nut suhstanuatcd by (lunar. there Mvc been mdi• canons dsrwhne that Cohuer Just retardant may promote growth hp cnham.7ng the chenvary of anJ w,h Dcan anJ flasem of the IJS Rureav of hl,ncs rep,rteJ that gertnmatinn «promolcJ anJ welting mrmmvcJ by a dart heat-ahsorMng surface stated by chemrcal stahrheauon agents For Coheres. a bT( gcrmuunon rate and 61'i~ wnnal rate were rep+rteC for IeacheJ wdmgs For unlerheJ tads, the Cuherea germr nauon rate was JO t~, and the survtsal rate IG.O'I. h u ea peter) that the Coiuradn Scree Curverstty studres may furnut more dau on thn to the Luure. Aleanwhtle. Clnnaa is encourage) by results w far in usml Coheres dust retarJant. Summing up eta effect on the two tad mgs ponds. the lirm's envtnmmental oxtuol engmcer nsm mented.'At nines the arrlwrne dust used to he w bad tha you couldn't see uYOa the pond But thn year. since spraytn most of the prods with Coherer. we've had ver)• hul dau." ^ 97