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EN - Case study Expertise in Mining Industry (Chile) - Degrémont Industry

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Information about EN - Case study Expertise in Mining Industry (Chile) - Degrémont Industry
Business & Mgmt

Published on May 27, 2013

Author: Degremont-Industry

Source: slideshare.net

Description

Discover the feedback of one of our mining industry clients located in Chile
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Reduce the concentration of molybdenum,adjust the pH and comply with the environmentalregulations“THE SOLUTION PROPOSED BY DEGREMONT INDUSTRY ALLOWEDTHE CLIENT TO REDUCE ITS CONCENTRATION OF MOLYBDENUM TOLESS THAN THE ORIGINALLY FIXED RATE, AND MEET THE VERYSTRINGENT REGULATIONS IN PLACE IN THE COUNTRY”PAULINA CHINGA DOLAREA, PAMO’s Plant managerFollowing the more and more stringent environmental regulations in the mining industryin Chile, our client Codelco had to reduce the concentration of molybdenum containedin the water, and adjust the pH. It was quiet a challenge considering the very highcapacity of water to treat (2,5 m3/s).However, the reliable and safe solution proposed by Degremont Industry allowed thedischarge to be below the 1 ppm of molybdenum concentration fixed as an objectiveand respond to the environmental regulations of the country.

Risk management by ensuring complianceand continuous operationsDegremont Industry undertook design, buildand operation of all the water treatmentinstallation.Safety and reliability1,400 days with no accident on site.Preventive maintenance plans ensure the plant’slongevity and optimal asset preservation.Codelco is one of the giants of the global mining sectorand is the world’s biggest copper producer. The PAMOsite is on the El Teniente mine, 80 km from Santiago.The mine is the largest underground mine in the world,with 2,400 km of tunnels. Conscious of theenvironmental impact of its business, Codelco hasselected Degremont Industry’s expertise in order todesign & build, and then operate and maintain themolybdenum treatment plant. The operationalchallenge lies in managing the very polluted effluentswhilst ensuring safety and reliability.Engineering and procurementThe solution proposed by Degremont Industry includes fieldsupervision, functional testing, and technical training.- Inlet tank for incoming flow regulation or bypass- Precipitation and acidification tanks with mechanicalmixers- 5 Densadeg™ (physical-chemical treatment )- Neutralization tanks with mechanical mixersSludge treatment:- Two liquid sludge storage tanks with thickening typemixers (V = 500 m3)- Three centrifuges (18.5 KW)- Two lagoons for two years final sludge storageOperations, Maintenance and Operational MonitoringThe solution proposed by Degremont Industry covers theoperation of all systems of the plant, preventive andcorrective maintenance of all equipments, effluent monitoringand laboratory management, handling and disposal of sludgegenerated in the process, as well as the management ofspare parts.The industrial wastewater facility is certified ISO-9001, ISO14001 and OHSAS 18001.

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