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Assessment of sulphate and iron reduction rates during reactor start-up for passive anaerobic co-treatment of acid mine drainage and sewage

Peter M. Smyntek, Jeffrey Chastel, Rebecca A. M. Peer, Evan Anthony, Jacob McCloskey, Emily Bach, Rachel C. Wagner, Joel Z. Bandstra and William H. J. Strosnider
Assessment of sulphate and iron reduction rates during reactor start-up for passive anaerobic co-treatment of acid mine drainage and sewage
Geochemistry - Exploration, Environment, Analysis (August 2017) 18 (1): 76-84

Abstract

Passive co-treatment of municipal wastewater (MWW) and acid mine drainage (AMD) has shown promise over the past decade for simultaneous remediation of these widespread waste streams. To investigate the efficiency and rates of iron and sulphate reduction during the start-up of anaerobic co-treatment using a novel, process-based kinetic modeling approach, twenty-four replicate 1L-cubitainers containing a 5:2 MWW:AMD mixture and Kaldnes plastic media were sealed, incubated and sacrificially sampled for key water quality parameters over 30 days. Alkalinity generation, pH increase and efficient removal of iron, aluminum and phosphate were observed. The observed sulphate and iron reduction rates were relatively slow, and the removal of sulphate, organic carbon and nitrogen was modest and incomplete. Overall, the results confirm the efficacy of AMD-MWW co-treatment for removal of key pollutants, but also highlight factors that may limit this emerging technology. Supplementary material: The fitted model parameters used to describe the behaviour of Fe, H (sub 2) S and SO (sub 4) (super 2-) are available at https://doi.org/10.6084/m9.figshare.c.3841279


ISSN: 1467-7873
EISSN: 2041-4943
Serial Title: Geochemistry - Exploration, Environment, Analysis
Serial Volume: 18
Serial Issue: 1
Title: Assessment of sulphate and iron reduction rates during reactor start-up for passive anaerobic co-treatment of acid mine drainage and sewage
Affiliation: Saint Francis University, Center for Watershed Research & Service, Loretto, PA, United States
Pages: 76-84
Published: 20170808
Text Language: English
Publisher: Geological Society Publishing House, London, United Kingdom
Number of pages: unpaginated
References: 60
Accession Number: 2017-068884
Categories: General geochemistryEnvironmental geology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 1 table
N40°15'00" - N40°43'00", W79°04'60" - W78°19'60"
Secondary Affiliation: Saint Vincent College, USA, United States
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2018, American Geosciences Institute. Reference includes data from GeoScienceWorld, Alexandria, VA, United States. Reference includes data from The Geological Society, London, London, United Kingdom
Update Code: 201736
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