Coal acid mine drainage treatment using cement kiln dust
Saved in:
| Main Author: | |
|---|---|
| Format: | Artículo científico |
| Language: | en |
| Published: |
Universidad Nacional de Colombia
2014
|
| Subjects: | |
| Online Access: | |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866557914525728768 |
|---|---|
| author | Edgar Alberto Martínez |
| author_facet | Edgar Alberto Martínez |
| contents | Coal acid mine drainage treatment using cement kiln dust Edgar Alberto Martínez Jorge Iván Tobón Juan Guillermo Morales Ingeniería Sulphate Removal Cement Kiln Dust Synthetic Gypsum Acid Mine Drainage Sulphurs are present in different rocks. During mining activities and the sulphur removal processes Acid Mine Drainage (AMD) may be produced, by sulphate ions (SO42-) in solution. AMDs are the main source of pollution from mining operations and in Colombia their discharge into natural bodies of water must comply with national environmental regulations (pH between 5 and 9). Cement Kiln Dust (CKD), with calcium carbonate as its main component, from a Cementos Argos S.A. plant was used to neutralize an AMD generated through a coal bio-desulphurization process. Neutralized AMDs had pH values between 7.72 – 8.05 and the sulphates removal ranged from 67% to 70%. Precipitated sludge was dried and analyzed in order to determine its chemical and mineralogical composition. Moisture content was between 69% and 81%; this precipitated material was composed of gypsum with approximately 50% purity, as well as calcium carbonate. This composition makes it suitable for use in cement production. 2014 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49631663011 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.186 Vol.81 |
| format | Artículo científico |
| id | redalyc_49631663011 |
| language | en |
| publishDate | 2014 |
| publisher | Universidad Nacional de Colombia |
| spellingShingle | Coal acid mine drainage treatment using cement kiln dust Edgar Alberto Martínez Ingeniería Sulphate Removal Cement Kiln Dust Synthetic Gypsum Acid Mine Drainage Coal acid mine drainage treatment using cement kiln dust Edgar Alberto Martínez Jorge Iván Tobón Juan Guillermo Morales Ingeniería Sulphate Removal Cement Kiln Dust Synthetic Gypsum Acid Mine Drainage Sulphurs are present in different rocks. During mining activities and the sulphur removal processes Acid Mine Drainage (AMD) may be produced, by sulphate ions (SO42-) in solution. AMDs are the main source of pollution from mining operations and in Colombia their discharge into natural bodies of water must comply with national environmental regulations (pH between 5 and 9). Cement Kiln Dust (CKD), with calcium carbonate as its main component, from a Cementos Argos S.A. plant was used to neutralize an AMD generated through a coal bio-desulphurization process. Neutralized AMDs had pH values between 7.72 – 8.05 and the sulphates removal ranged from 67% to 70%. Precipitated sludge was dried and analyzed in order to determine its chemical and mineralogical composition. Moisture content was between 69% and 81%; this precipitated material was composed of gypsum with approximately 50% purity, as well as calcium carbonate. This composition makes it suitable for use in cement production. 2014 artículo científico 0012-7353 https://www.redalyc.org/articulo.oa?id=49631663011 en http://www.redalyc.org/revista.oa?id=496 Dyna application/pdf Universidad Nacional de Colombia Dyna (Colombia) Num.186 Vol.81 |
| title | Coal acid mine drainage treatment using cement kiln dust |
| topic | Ingeniería Sulphate Removal Cement Kiln Dust Synthetic Gypsum Acid Mine Drainage |
| url | https://www.redalyc.org/articulo.oa?id=49631663011 |