采礦和建筑材料能否聯手打造更環保的未來？.pdf

1、Can Mining and Construction Materials Join Forces for a Greener Future?Mining Industry Big producer of mine waste materials Construction Industry Can mine wastes be used as alternative construction materials?Can Mining and Construction Materials Join Forces for a Greener Future?MIT Global Summit on

2、Mine Tailings Innovation September 19-20,2024I Presented by:Yassine Taha I Email:yassine.tahaum6p.maMining industry challenges2Source:Rick K.Valenta et al.,202312 billion tons45 billion tons205020221 billion tons7 billion tons205020220.1 billion tons2.6 billion tons20502022 Around 50 to 100 billion

3、tons of mine waste are produced annually This amount will increase more in the future due to lower-grade ores At the end,mining is producing a LOT of waste rock and tailings Construction materials DOMINATE resource consumption 3In the construction sector only:22 billion tons of aggregates(gravel,san

4、d,crushed rocks,additives)3.6 billion tons of cement 2.5 billion tons of water Mine waste could be used as construction and building materials to replace sand,gravel,clays,limestone,etc.Source:OECD Global Material Resources Outlook to 2060Reuse as construction materialsClinker&Cementitious materials

5、Glass&CeramicsConcrete aggregates GeopolymersRoads constructionSource:Scopus Case study:Phosphate waste streams5Phosphate orePretreatment waste rockPhosphate rockHow to change things for a sustaianble resources management?6Actions to MANAGE ALREADY DISPOSED mine waste?13km16kmPhosphate mine Morocco

6、FUTURE ACTIONS to change CURRENT EXTRACTION&PROCESSING methods?Phosphate tailings Morocco 1.6 KmPhosphate Mine WASTE ROCK-Future Actions 7Phosphate mine Morocco Actions to MANAGE ALREADY DISPOSED mine waste?13km16kmPhosphate Mine WASTE ROCK-Future Actions 8Actions to MANAGE ALREADY DISPOSED mine was

7、te?13km16kmPhosphate mine Morocco Phosphate Mine WASTE ROCK-Future Actions 9Actions to MANAGE ALREADY DISPOSED mine waste?High Performance Concrete 10Source:Projet AS66 2020 2024 I Thse Yahya ElberdaiFUTURE ACTIONS:Cement from phosphate over and interburden 11Marls,Limestone blocksFlint,Clays,Silica

8、tesRocks contained in the overburden may have a significant potential reuse as construction products or aggregates in road networksFUTURE ACTIONS to change CURRENT EXTRACTION&PROCESSING methods?3D geological model of a phosphate depositInterburden properties 12Methodology 13Concrete performance 14Sc

9、ale-up 15What a future mine waste storage facility could look like!16-Making Zero Mine Waste a Reality-Increase the profitability,sustainability and safety of your mine by recycling your tailings-Transform mine waste into a valuable and profitable resourcePhosphate Beneficiation Future Actions 17Pho

10、sphate tailings Morocco 1.6 KmFUTURE ACTIONS to change CURRENT PROCESSING methods Phosphate Beneficiation Future Actions 18Phosphate tailings Morocco 1.6 KmFUTURE ACTIONS to change CURRENT PROCESSING methods Phosphate Beneficiation Future Actions 19Source:Projet AS34 Flottation 2019 2023 I Thse Mana

11、r Derhy 202392%81%82%92%Circular economy is NOT about one manufacturer changing one product,its all about the interconnecting companies that form our infrastructure and economy coming together,its about synergy,its about rethinking the operating system itself,we have a fantastic opportunity to open

12、new perspectives,and new horizons,instead of remaining trapped in the frustrations of the present,with creativity and innovation,we really can rethink and redesign our futureCONCLUDING REMARKS20Can Mining and Construction Materials Join Forces for a Greener Future?Mining Industry Big producer of mine waste materials Construction Industry Can mine wastes be used as alternative construction materials?Can Mining and Construction Materials Join Forces for a Greener Future?MIT Global Summit on Mine Tailings Innovation September 19-20,2024 I Presented by:Yassine Taha I Email:yassine.tahaum6p.ma