paia-180509_south-32-hillside-aluminium-a41fc0f0526195eb.pdf

This document is a Pollution Prevention Plan Annual Progress Report for Hillside Aluminium (Pty) Ltd, a South32 company. It outlines planned mitigation measures to reduce greenhouse gas (GHG) emissions, specifically focusing on reducing anode scallops and anode effects in the reduction process to lower CO2 and PFC emissions over a five-year period.

• Hillside Aluminium has planned a project to reduce the size and frequency of 'Anode scallops' on recycled Anode Butts to decrease the amount of carbon lost to air burn during the reduction process. The project aims for a maximum saving equivalent to 1.5 kg Nett Carbon Consumption, with anticipated CO2 reductions of 3,960 tonnes per year over five years, totaling 11,880 tonnes.
• The company plans to retrofit reduction cell alumina feeders with 'Intelligent Crust breaking devices' to reduce the frequency of anode effects, which are caused by drops in dissolved alumina concentration due to blocked or damaged feeders. The goal is to reduce anode effect frequency to between 0.26 and 0.3 AE/pot/day, with an estimated total PFC reduction of 49,143 tonnes of CO2e over five years.
• As of the reporting period, the Anode Scallops reduction project and the Intelligent Bath Chisel Alumina feeders project were listed as 'Not started', with the latter scheduled for trials in 6 pots during June/July 2019. The Alpsys algorithm upgrade was noted as having results 'not yet realised', with further optimisation planned over the following 12 to 18 months.

APA

Centre for Environmental Rights (n.d.). paia-180509_south-32-hillside-aluminium-a41fc0f0526195eb.pdf. https://cer.org.za/wp-content/uploads/2019/12/PAIA-180509_South-32-Hillside-Aluminium.pdf?x21779

Chicago

Centre for Environmental Rights. paia-180509_south-32-hillside-aluminium-a41fc0f0526195eb.pdf. n.d. https://cer.org.za/wp-content/uploads/2019/12/PAIA-180509_South-32-Hillside-Aluminium.pdf?x21779.

Wikipedia

{{cite report |author=Centre for Environmental Rights |title=paia-180509_south-32-hillside-aluminium-a41fc0f0526195eb.pdf |url=https://cer.org.za/wp-content/uploads/2019/12/PAIA-180509_South-32-Hillside-Aluminium.pdf?x21779 |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{centreforenvironmentalrightsndpaia180509south32hillsidealuminiuma41fc0f0526195ebpdf, author = {{Centre for Environmental Rights}}, title = {{paia-180509\_south-32-hillside-aluminium-a41fc0f0526195eb.pdf}}, institution = {Centre for Environmental Rights}, url = {https://cer.org.za/wp-content/uploads/2019/12/PAIA-180509_South-32-Hillside-Aluminium.pdf?x21779}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }