A solidification/stabilization process for wastewater treatment sludge from a primary copper smelter
Wastewater treatment sludge from primary copper smelter is characterized as hazardous waste that requires treatment prior disposal due to significant amount of heavy metals and arsenic. The aim of the presented study was to investigate the feasibility and the effectiveness of solidification/stab...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Serbian Chemical Society
2013-01-01
|
| Series: | Journal of the Serbian Chemical Society |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0352-5139/2013/0352-51391200125I.pdf |
| _version_ | 1818361822868144128 |
|---|---|
| author | Ivšić-Bajčeta Dragana Kamberović Željko Korać Marija Gavrilovski Milorad |
| author_facet | Ivšić-Bajčeta Dragana Kamberović Željko Korać Marija Gavrilovski Milorad |
| author_sort | Ivšić-Bajčeta Dragana |
| collection | DOAJ |
| description | Wastewater treatment sludge from primary copper smelter is characterized as hazardous waste that requires treatment prior disposal due to significant amount of heavy metals and arsenic. The aim of the presented study was to investigate the feasibility and the effectiveness of solidification/stabilization process of the sludge using fly ash and lime as binders. The effectiveness of the process was evaluated by Unconfined Compressive Strength (UCS) testing, leaching tests (EN 12457-4 and Toxicity Characteristic Leaching Procedure (TCLP)) and Acid Neutralization Capacity (ANC) test. All samples reached target UCS of 0.35 MPa. Calcium to silicon concentration ratio (cCa/cSi), determined by X-Ray Fluorescence (XRF) analysis, was identified as main factor governing strength development. Inductively coupled plasma-optical emission spectrometry (ICP-OES) analyses of solutions after leaching tests showed excellent stabilization of Cu, Ni, Pb and Zn (above 99 %) and arsenic (above 90 %) in samples with high Ca(OH)2 content. Results of ANC test indicated that buffering capacity of solidified material linearly depended on Ca concentration in FA and lime. Sample with 20 % of binder heaving 50 % of FA and 50 % of lime met all requirements to be safely disposed. [Projekat Ministarstva nauke Republike Srbije, br. 34033] |
| first_indexed | 2024-12-13T21:22:48Z |
| format | Article |
| id | doaj.art-6c419902a8da4833bb9daf59ae088610 |
| institution | Directory Open Access Journal |
| issn | 0352-5139 |
| language | English |
| last_indexed | 2024-12-13T21:22:48Z |
| publishDate | 2013-01-01 |
| publisher | Serbian Chemical Society |
| record_format | Article |
| series | Journal of the Serbian Chemical Society |
| spelling | doaj.art-6c419902a8da4833bb9daf59ae0886102022-12-21T23:31:02ZengSerbian Chemical SocietyJournal of the Serbian Chemical Society0352-51392013-01-0178572573910.2298/JSC120716125IA solidification/stabilization process for wastewater treatment sludge from a primary copper smelterIvšić-Bajčeta DraganaKamberović ŽeljkoKorać MarijaGavrilovski MiloradWastewater treatment sludge from primary copper smelter is characterized as hazardous waste that requires treatment prior disposal due to significant amount of heavy metals and arsenic. The aim of the presented study was to investigate the feasibility and the effectiveness of solidification/stabilization process of the sludge using fly ash and lime as binders. The effectiveness of the process was evaluated by Unconfined Compressive Strength (UCS) testing, leaching tests (EN 12457-4 and Toxicity Characteristic Leaching Procedure (TCLP)) and Acid Neutralization Capacity (ANC) test. All samples reached target UCS of 0.35 MPa. Calcium to silicon concentration ratio (cCa/cSi), determined by X-Ray Fluorescence (XRF) analysis, was identified as main factor governing strength development. Inductively coupled plasma-optical emission spectrometry (ICP-OES) analyses of solutions after leaching tests showed excellent stabilization of Cu, Ni, Pb and Zn (above 99 %) and arsenic (above 90 %) in samples with high Ca(OH)2 content. Results of ANC test indicated that buffering capacity of solidified material linearly depended on Ca concentration in FA and lime. Sample with 20 % of binder heaving 50 % of FA and 50 % of lime met all requirements to be safely disposed. [Projekat Ministarstva nauke Republike Srbije, br. 34033]http://www.doiserbia.nb.rs/img/doi/0352-5139/2013/0352-51391200125I.pdffly ashlimeheavy metalsunconfined compressive strengthleaching tests |
| spellingShingle | Ivšić-Bajčeta Dragana Kamberović Željko Korać Marija Gavrilovski Milorad A solidification/stabilization process for wastewater treatment sludge from a primary copper smelter Journal of the Serbian Chemical Society fly ash lime heavy metals unconfined compressive strength leaching tests |
| title | A solidification/stabilization process for wastewater treatment sludge from a primary copper smelter |
| title_full | A solidification/stabilization process for wastewater treatment sludge from a primary copper smelter |
| title_fullStr | A solidification/stabilization process for wastewater treatment sludge from a primary copper smelter |
| title_full_unstemmed | A solidification/stabilization process for wastewater treatment sludge from a primary copper smelter |
| title_short | A solidification/stabilization process for wastewater treatment sludge from a primary copper smelter |
| title_sort | solidification stabilization process for wastewater treatment sludge from a primary copper smelter |
| topic | fly ash lime heavy metals unconfined compressive strength leaching tests |
| url | http://www.doiserbia.nb.rs/img/doi/0352-5139/2013/0352-51391200125I.pdf |
| work_keys_str_mv | AT ivsicbajcetadragana asolidificationstabilizationprocessforwastewatertreatmentsludgefromaprimarycoppersmelter AT kamberoviczeljko asolidificationstabilizationprocessforwastewatertreatmentsludgefromaprimarycoppersmelter AT koracmarija asolidificationstabilizationprocessforwastewatertreatmentsludgefromaprimarycoppersmelter AT gavrilovskimilorad asolidificationstabilizationprocessforwastewatertreatmentsludgefromaprimarycoppersmelter AT ivsicbajcetadragana solidificationstabilizationprocessforwastewatertreatmentsludgefromaprimarycoppersmelter AT kamberoviczeljko solidificationstabilizationprocessforwastewatertreatmentsludgefromaprimarycoppersmelter AT koracmarija solidificationstabilizationprocessforwastewatertreatmentsludgefromaprimarycoppersmelter AT gavrilovskimilorad solidificationstabilizationprocessforwastewatertreatmentsludgefromaprimarycoppersmelter |