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Bauxite Residue Filtration in Alcoa Corporation's Australia Fac...

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Bauxite Residue Filtration in Alcoa Corporation's Australia Facilities

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Amazon
5888268 km2
Countries
Brazil; Peru; Suriname; France; Colombia; Guyana; Bolivia; Venezuela; Ecuador
Cities
Santa Cruz; Manaus; La Paz
Location City, Country & Regions Interests
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Quick Info

Partners: Alcoa Corp.
Countries: South Africa
Regions: Orange, South Africa
Project SDGs:
Includes Sustainable Development Goals from the project and its locations.
Water Quality (SDG 6.3)
Water Use Efficiency (SDG 6.4)
Sustainable Production (SDG 12.4)
Project Tags:
Includes tags from the project and its locations.
Water Recycling and Reuse
Services Needed: No services needed/offered
Project Type: Operations
Language: English
Start & End Dates: Jan. 2017  »  Ongoing
Project Source: CDP
Profile Completion: 57%

Project Overview

Alcoa approved a capital investment of US$115 Million for residue filtration at the Kwinana refinery in Western Australia, a technology with multiple benefits, which we commissioned in early 2016. With this technology, bauxite residue generated from the alumina refining process is forced through very large filters that squeeze out the water, which is recycled in the process. The system reduces the refinery’s freshwater use by 1.2 gigaliters (317 million gallons) annually a...

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Alcoa approved a capital investment of US$115 Million for residue filtration at the Kwinana refinery in Western Australia, a technology with multiple benefits, which we commissioned in early 2016. With this technology, bauxite residue generated from the alumina refining process is forced through very large filters that squeeze out the water, which is recycled in the process. The system reduces the refinery’s freshwater use by 1.2 gigaliters (317 million gallons) annually and also reduces the volume of bauxite residue. We continue to evaluate the use of this technology at other refineries around the world.At the plant level, we reduce consumption and discharge and increase recycling opportunities through advanced technologies and process improvements. In water-scarce Western Australia, we also use secondary sources of water and work to reduce the evaporation of stored water at our mines and refineries.

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