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Tim Danhey, Biomost, "Operations and Maintenance Panel"

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In this three part series, three speakers will present three different approaches to operations maintenance of AMD treatment systems. Learn how they deal with touch O&M issues.

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Tim Danhey, Biomost, "Operations and Maintenance Panel"

  1. 1. OM&R FOR THE MINING INDUSTRY Tim Danehy, QEP BioMost, Inc., Mining and Reclamation Services Co-Authors: Ryan Mahony,Cody “ Buck” Neely, BJ Page, Shaun Busler, Cliff Denholm, Margaret Dunn AMERIKOHL MINING Zelmore System (2001) www.biomost.com PA AMR CONFERENCE “Collaboration is Essential” June 27, 2014 State College, PA
  2. 2. BMI EXPERIENCE - DESIGNING AND INSTALLING PASSIVE SYSTEMS SINCE 1998 - OVER 70 SYSTEM DESIGNS COMPLETED (PASSIVE AND ACTIVE) - APPX. 60 SYSTEMS HAVE BEEN INSTALLED (PASSIVE AND ACTIVE) - OPERATE & MAINTAIN NUMEROUS PASSIVE SYSTEMS FOR INDUSTRY -TECHNICAL/OPERATIONAL ASSISTANCETO WATERSHED GROUPS (TAG GRANT) - DESIGN , CONSTRUCTION AND O&M SERVICES PADCNR Jennings System (2002)
  3. 3. WHY PASSIVE TREATMENT? - GENERALLY SPEAKING, PASSIVE IS CHEAPER - MININGCOMPANIES DON’T MAKE MONEYTREATINGWATER - REDUCES OVERALL BOND/TRUST LIABILITY - CONSISTENTTREATMENT - NOTALWAYS CORRECTCHOICE (DIFFICULTTO “TURN UP” ) AMERIKOHL MINING Ernest System (2002) 5,000T ALD
  4. 4. PATRIOT MINING – MT. MORRIS - PASSIVE SYSTEM PRIMARILY FOR MANGANESE REMOVAL -TMDL STREAM – MORE STRINGENT EFFLUENT LIMITS
  5. 5. PATRIOT MINING – KEENER - ACTIVE SYSTEM (AQUAFIXWITH MIXWELL AND PUMPING) - DYNAMICWATER QUALITY - UTILIZE EXISTING FACILITIESTO REDUCE CAPITAL COSTS
  6. 6. ACTIVE CHALLENGES - LABOR COST FOR ACTIVETYPICALLYVERY HIGH (2-3 VISITS/WK ) - CHEMICAL COSTSVARYAND CAN BE SIGNIFICANT - PUMPINGAND ELECTRICALCOSTS - SLUDGE HANDLING - ROAD MAINTENANCE (SNOW PLOWING ) - SYSTEM BREAKDOWNS HARBISON-WALKER Sanborn Active (2005)
  7. 7. PASSIVE ADVANTAGES - MONTHLY INSPECTIONS USUALLY SUFFICIENT -TYPICALLYVERY LOW MAINTEANCE - MUCH DENSER SLUDGE (VERY LOW COMPARITIVEVOLUME) - NOT DEPENDENTON ELECTRIC OR MOVING PARTS - CONSISTENTTREATMENT HARBISON-WALKER Sanborn Passive (2005)
  8. 8. PASSIVE PERFORMANCE - 10-15 MANGANESETO ~DETECTION LIMIT 11YEARS! SHENANGO INC. Boartz (2003 - 2014)
  9. 9. PASSIVE OPERATION? - HOWTO “OPERATE” SOMETHINGWITH NO MOVING PARTS? - INSPECTIONS, MONITORING & SAMPLING -TYPICALLY FLUSHING IF NEEDED (SOME AUTOMATED) - ADJUSTTOVARIABLE FLOW/CHEMISTRY (IF FLEXIBLE SYSTEM) SHENANGO INC. East Riverside (2008)
  10. 10. MAINTENANCE - CLEANING DITCHES & CHANNELS HARBISON-WALKER Sanborn (2014)
  11. 11. MAINTENANCE - PUMPING SLUDGE (VEGETATION MAY REQUIRE SPECIAL PUMP) SHENANGO INC. Curley (2013)
  12. 12. MAINTENANCE - STIRRINGTREATMENT MEDIA - CONCURRENTWASHING (IF AGGREGATE ONLY MEDIUM) SHENANGO INC. East Riverside (2011)
  13. 13. MAINTENANCE - CLEANINGTREATMENT MEDIA - WATCHTHOSE PIPES! SHENANGO INC. “Aluminator “ (2012)
  14. 14. IMPROVEMENTS - REPLACED PVC UNDERDRAINWITH DR17 HDPE PIPE - (USE GAS DRILLTO PERFORATE PIPES) - CONNECT USING FERNCOS (REGULAR OR SHIELDED) - MARK PIPE LOCATIONS AL HAMILTON Bear Hill (2013)
  15. 15. TEMPORARY SUPPLEMENTAL - DEPLOY INTERIMCHEMICALTREATMENTWHEN NEEDED - LABOR COSTS ARE SIGNIFICANTLY HIGHER - ONLYAS NEEDED IF POSSIBLE - SODA ASH BRIQUETTES (OR LIQUID CAUSTIC) SHENANGO INC. East Riverside System (2012)
  16. 16. REPLACEMENT - SYSTEMSWILL NEEDTO BE RECONSTRUCTED - OPPORTUNITY FOR IMPROVEMENT ! - DESIGN LIFE 15 – 25YEARSTYP. - BETTERTECHNOLOGYAVAILABLE SHENANGO INC. East Riverside System (2012)
  17. 17. CONTINGENCY - BULLET HOLESAND SCRAP METAL
  18. 18. CONTINGENCY - BULLET HOLESAND MUSKRAT HABITAT
  19. 19. CONTINGENCY - RANDOMNESS
  20. 20. THANK YOU!

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