Testing of different substrate materials for sulphate reducing reactive barrier to treat acid mine drainage

Elina Vestola

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Abstract

The aim of this study was to find cheap, solid substrate material for sulphate reducing bacteria (SRB) to be used in permeable reactive barrier (PRB) and infiltration beds to treat acidic, nickel-, copper- and iron-rich mine drainage. Laboratory experiments were carried out to examine the reactivity and utilisation of different substrate materials. The materials of interest were peat, sawdust, cucumber compost and cellulose. Limestone, phosphorus and nitrogen were added to the mixture to create optimum growth conditions for SRB. Based on a batch tests, cucumber compost was chosen to be examined in larger-scale column tests. Results from the column tests were promising. Nickel (43 mg L-1), copper (24 mg L-1) and iron (95 mg L-1) were precipitated almost completely and the concentration of sulphate was decreased approximately 20 %. pH values increased from 2.7 to 8. Based on laboratory tests results it appears that cucumber compost was suitable substrate material for SRB in PRBs and infiltration beds treating AMD.
Original languageEnglish
Pages (from-to)573-576
JournalAdvanced Materials Research
Volume71-73
DOIs
Publication statusPublished - 2009
MoE publication typeA1 Journal article-refereed

Fingerprint

Drainage
Bacteria
Acids
Testing
Substrates
Infiltration
Nickel
Iron
Copper
Sawdust
Peat
Limestone
Phosphorus
Cellulose
Nitrogen
Sulfates
Experiments

Keywords

  • cellulose
  • compost
  • peat
  • reactive barrier
  • sawdust
  • sulphate reduction
  • sulphate-reducing bacteria
  • acid mine drainage
  • solid waste management

Cite this

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title = "Testing of different substrate materials for sulphate reducing reactive barrier to treat acid mine drainage",
abstract = "The aim of this study was to find cheap, solid substrate material for sulphate reducing bacteria (SRB) to be used in permeable reactive barrier (PRB) and infiltration beds to treat acidic, nickel-, copper- and iron-rich mine drainage. Laboratory experiments were carried out to examine the reactivity and utilisation of different substrate materials. The materials of interest were peat, sawdust, cucumber compost and cellulose. Limestone, phosphorus and nitrogen were added to the mixture to create optimum growth conditions for SRB. Based on a batch tests, cucumber compost was chosen to be examined in larger-scale column tests. Results from the column tests were promising. Nickel (43 mg L-1), copper (24 mg L-1) and iron (95 mg L-1) were precipitated almost completely and the concentration of sulphate was decreased approximately 20 {\%}. pH values increased from 2.7 to 8. Based on laboratory tests results it appears that cucumber compost was suitable substrate material for SRB in PRBs and infiltration beds treating AMD.",
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Testing of different substrate materials for sulphate reducing reactive barrier to treat acid mine drainage. / Vestola, Elina.

In: Advanced Materials Research, Vol. 71-73, 2009, p. 573-576.

Research output: Contribution to journalArticleScientificpeer-review

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AU - Vestola, Elina

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AB - The aim of this study was to find cheap, solid substrate material for sulphate reducing bacteria (SRB) to be used in permeable reactive barrier (PRB) and infiltration beds to treat acidic, nickel-, copper- and iron-rich mine drainage. Laboratory experiments were carried out to examine the reactivity and utilisation of different substrate materials. The materials of interest were peat, sawdust, cucumber compost and cellulose. Limestone, phosphorus and nitrogen were added to the mixture to create optimum growth conditions for SRB. Based on a batch tests, cucumber compost was chosen to be examined in larger-scale column tests. Results from the column tests were promising. Nickel (43 mg L-1), copper (24 mg L-1) and iron (95 mg L-1) were precipitated almost completely and the concentration of sulphate was decreased approximately 20 %. pH values increased from 2.7 to 8. Based on laboratory tests results it appears that cucumber compost was suitable substrate material for SRB in PRBs and infiltration beds treating AMD.

KW - cellulose

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KW - reactive barrier

KW - sawdust

KW - sulphate reduction

KW - sulphate-reducing bacteria

KW - acid mine drainage

KW - solid waste management

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