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Title: Bioreactor for acid mine drainage control

Abstract

A bioreactor for reacting an aqueous heavy metal and sulfate containing mine drainage solution with sulfate reducing bacteria to produce heavy metal sulfides and reduce the sulfuric acid content of the solution. The reactor is an elongated, horizontal trough defining an inlet section and a reaction section. An inlet manifold adjacent the inlet section distributes aqueous mine drainage solution into the inlet section for flow through the inlet section and reaction section. A sulfate reducing bacteria and bacteria nutrient composition in the inlet section provides sulfate reducing bacteria that with the sulfuric acid and heavy metals in the solution to form solid metal sulfides. The sulfate reducing bacteria and bacteria nutrient composition is retained in the cells of a honeycomb structure formed of cellular honeycomb panels mounted in the reactor inlet section. The honeycomb panels extend upwardly in the inlet section at an acute angle with respect to the horizontal. The cells defined in each panel are thereby offset with respect to the honeycomb cells in each adjacent panel in order to define a tortuous path for the flow of the aqueous solution.

Inventors:
 [1];  [1]
  1. (Butte, MT)
Issue Date:
Research Org.:
MSE INC
OSTI Identifier:
874144
Patent Number(s):
6325923
Assignee:
MSE Technology Applications, Inc. (Butte, MT) OSTI
DOE Contract Number:  
AC22-96EW96405
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
bioreactor; acid; mine; drainage; control; reacting; aqueous; heavy; metal; sulfate; containing; solution; reducing; bacteria; produce; sulfides; reduce; sulfuric; content; reactor; elongated; horizontal; trough; defining; inlet; section; reaction; manifold; adjacent; distributes; flow; nutrient; composition; provides; metals; form; solid; retained; cells; honeycomb; structure; formed; cellular; panels; mounted; extend; upwardly; acute; angle; defined; panel; offset; define; tortuous; path; aqueous solution; sulfuric acid; structure formed; reducing bacteria; /210/

Citation Formats

Zaluski, Marek H., and Manchester, Kenneth R. Bioreactor for acid mine drainage control. United States: N. p., 2001. Web.
Zaluski, Marek H., & Manchester, Kenneth R. Bioreactor for acid mine drainage control. United States.
Zaluski, Marek H., and Manchester, Kenneth R. Mon . "Bioreactor for acid mine drainage control". United States. https://www.osti.gov/servlets/purl/874144.
@article{osti_874144,
title = {Bioreactor for acid mine drainage control},
author = {Zaluski, Marek H. and Manchester, Kenneth R.},
abstractNote = {A bioreactor for reacting an aqueous heavy metal and sulfate containing mine drainage solution with sulfate reducing bacteria to produce heavy metal sulfides and reduce the sulfuric acid content of the solution. The reactor is an elongated, horizontal trough defining an inlet section and a reaction section. An inlet manifold adjacent the inlet section distributes aqueous mine drainage solution into the inlet section for flow through the inlet section and reaction section. A sulfate reducing bacteria and bacteria nutrient composition in the inlet section provides sulfate reducing bacteria that with the sulfuric acid and heavy metals in the solution to form solid metal sulfides. The sulfate reducing bacteria and bacteria nutrient composition is retained in the cells of a honeycomb structure formed of cellular honeycomb panels mounted in the reactor inlet section. The honeycomb panels extend upwardly in the inlet section at an acute angle with respect to the horizontal. The cells defined in each panel are thereby offset with respect to the honeycomb cells in each adjacent panel in order to define a tortuous path for the flow of the aqueous solution.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {1}
}

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