logging in or signing up REUSE OF LIME SLUDGES short2 Dorotea Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINTLite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 926 Category: Education License: All Rights Reserved Like it (0) Dislike it (0) Added: February 13, 2008 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... By: rajinderchd13 (18 month(s) ago) Nice presentation Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript REUSE OF WATER SOFTENING LIME SLUDGES: REUSE OF WATER SOFTENING LIME SLUDGES USE IN ROAD CONSTRUCTION CEMENT KILNS & POWER PLANTS by J(Hans) van Leeuwen and David White, CCE Iowa State UniversitySlide2: Problems with hard waterSlide4: Typical water treatment process with lime softening Lime sludge Ca(OH)2 Lime Slide5: SETTLINGSlide7: FILTER PRESS DEWATERING & STOCKPILING Slide8: SOLAR DRYING & STORAGE Slide9: KILN DRYING & STORAGE 200,000 tons/y in IA; millions in the US Potential Use of Lime Sludge in Cement Production: Potential Use of Lime Sludge in Cement ProductionSlide11: CEMENT PLANTSlide12: ADDING TO CEMENT RAW MATERIALSSlide13: 80t cement produced using 20t lime sludgeSlide14: Construction industry Cement production Limestone is one of the major raw materials in cement production Millions of tons produced/y in IowaSlide15: POTENTIAL USE OF LIME SLUDGE IN COAL FIRED POWER PLANTSSlide16: SO2 + CaCO3 CaSO3 + CO2 AIR POLLUTION CONTROL WITH LIMESTONE Slide17: SLUDGE DRYING & LOADINGSlide18: ISU Power PlantSlide19: THERMOGRAVIMETRIC ANALYSIS OF LIME SLUDGESlide20: DETAIL OF TGASlide21: CONTROL OF POWER PLANT AND EMISSIONS RESULTS: ENCOURAGINGSlide22: Could lime sludge be used for dust control as a soil modifier as a soil substitute in large filling applications? Potential Use of Lime Sludge in Road ConstructionLime sludge use as structural material: Lime sludge use as structural material Lime sludge + 17.5% fly ash + 17.5% bottom ash Lime sludge + 17.5% fly ash + 17.5% concrete sand 7d 28d 56d Curing time, days psi More tests needed with different proportions Lime sludge + 17.5% fly ash Unconfined Bearing StrengthSlide24: Western Iowa Loess Lime sludge Densities of fill materials Dry Density (kg/m3) Water content (% based on dry mass) More work needed on transportation costs You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
REUSE OF LIME SLUDGES short2 Dorotea Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINTLite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 926 Category: Education License: All Rights Reserved Like it (0) Dislike it (0) Added: February 13, 2008 This Presentation is Public Favorites: 0 Presentation Description No description available. Comments Posting comment... By: rajinderchd13 (18 month(s) ago) Nice presentation Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript REUSE OF WATER SOFTENING LIME SLUDGES: REUSE OF WATER SOFTENING LIME SLUDGES USE IN ROAD CONSTRUCTION CEMENT KILNS & POWER PLANTS by J(Hans) van Leeuwen and David White, CCE Iowa State UniversitySlide2: Problems with hard waterSlide4: Typical water treatment process with lime softening Lime sludge Ca(OH)2 Lime Slide5: SETTLINGSlide7: FILTER PRESS DEWATERING & STOCKPILING Slide8: SOLAR DRYING & STORAGE Slide9: KILN DRYING & STORAGE 200,000 tons/y in IA; millions in the US Potential Use of Lime Sludge in Cement Production: Potential Use of Lime Sludge in Cement ProductionSlide11: CEMENT PLANTSlide12: ADDING TO CEMENT RAW MATERIALSSlide13: 80t cement produced using 20t lime sludgeSlide14: Construction industry Cement production Limestone is one of the major raw materials in cement production Millions of tons produced/y in IowaSlide15: POTENTIAL USE OF LIME SLUDGE IN COAL FIRED POWER PLANTSSlide16: SO2 + CaCO3 CaSO3 + CO2 AIR POLLUTION CONTROL WITH LIMESTONE Slide17: SLUDGE DRYING & LOADINGSlide18: ISU Power PlantSlide19: THERMOGRAVIMETRIC ANALYSIS OF LIME SLUDGESlide20: DETAIL OF TGASlide21: CONTROL OF POWER PLANT AND EMISSIONS RESULTS: ENCOURAGINGSlide22: Could lime sludge be used for dust control as a soil modifier as a soil substitute in large filling applications? Potential Use of Lime Sludge in Road ConstructionLime sludge use as structural material: Lime sludge use as structural material Lime sludge + 17.5% fly ash + 17.5% bottom ash Lime sludge + 17.5% fly ash + 17.5% concrete sand 7d 28d 56d Curing time, days psi More tests needed with different proportions Lime sludge + 17.5% fly ash Unconfined Bearing StrengthSlide24: Western Iowa Loess Lime sludge Densities of fill materials Dry Density (kg/m3) Water content (% based on dry mass) More work needed on transportation costs