Portal de Periódicos da CAPES

Identification and assessment of water quality risks associated with sludge supernatant recycling in the presence of cyanobacteria

2016; UWA Publishing; Volume: 65; Issue: 6 Linguagem: Inglês

10.2166/aqua.2016.030

1365-2087

Jennifer Dreyfus, Yannick Monrolin, Carlos J. Pestana, Petra J. Reeve, Emma Sawade, Kelly Newton, Lionel Ho, Christopher W.K. Chow, Gayle Newcombe,

Freshwater macroinvertebrate diversity and ecology

Research Article| August 13 2016 Identification and assessment of water quality risks associated with sludge supernatant recycling in the presence of cyanobacteria Jennifer Dreyfus; Jennifer Dreyfus 1Australian Water Quality Centre, South Australian Water Corporation, 250 Victoria Square, Adelaide, SA 5000, Australia2Current address: Allwater, Adelaide Services Alliance, Wakefield St, Adelaide, SA 5001, Australia Search for other works by this author on: This Site PubMed Google Scholar Yannick Monrolin; Yannick Monrolin 1Australian Water Quality Centre, South Australian Water Corporation, 250 Victoria Square, Adelaide, SA 5000, Australia Search for other works by this author on: This Site PubMed Google Scholar Carlos J. Pestana; Carlos J. Pestana 1Australian Water Quality Centre, South Australian Water Corporation, 250 Victoria Square, Adelaide, SA 5000, Australia Search for other works by this author on: This Site PubMed Google Scholar Petra J. Reeve; Petra J. Reeve 1Australian Water Quality Centre, South Australian Water Corporation, 250 Victoria Square, Adelaide, SA 5000, Australia Search for other works by this author on: This Site PubMed Google Scholar Emma Sawade; Emma Sawade 1Australian Water Quality Centre, South Australian Water Corporation, 250 Victoria Square, Adelaide, SA 5000, Australia Search for other works by this author on: This Site PubMed Google Scholar Kelly Newton; Kelly Newton 1Australian Water Quality Centre, South Australian Water Corporation, 250 Victoria Square, Adelaide, SA 5000, Australia Search for other works by this author on: This Site PubMed Google Scholar Lionel Ho; Lionel Ho 1Australian Water Quality Centre, South Australian Water Corporation, 250 Victoria Square, Adelaide, SA 5000, Australia Search for other works by this author on: This Site PubMed Google Scholar Christopher W. K. Chow; Christopher W. K. Chow 1Australian Water Quality Centre, South Australian Water Corporation, 250 Victoria Square, Adelaide, SA 5000, Australia Search for other works by this author on: This Site PubMed Google Scholar Gayle Newcombe Gayle Newcombe 1Australian Water Quality Centre, South Australian Water Corporation, 250 Victoria Square, Adelaide, SA 5000, Australia E-mail: gayle.newcombe@sawater.com.au Search for other works by this author on: This Site PubMed Google Scholar Journal of Water Supply: Research and Technology-Aqua (2016) 65 (6): 441–452. https://doi.org/10.2166/aqua.2016.030 Article history Received: April 15 2016 Accepted: July 15 2016 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Cite Icon Cite Permissions Search Site Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsThis Journal Search Advanced Search Citation Jennifer Dreyfus, Yannick Monrolin, Carlos J. Pestana, Petra J. Reeve, Emma Sawade, Kelly Newton, Lionel Ho, Christopher W. K. Chow, Gayle Newcombe; Identification and assessment of water quality risks associated with sludge supernatant recycling in the presence of cyanobacteria. Journal of Water Supply: Research and Technology-Aqua 1 September 2016; 65 (6): 441–452. doi: https://doi.org/10.2166/aqua.2016.030 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex This study focussed on the fate of cyanobacteria cells and associated metabolites during the sludge management processes that follow the conventional drinking water treatment train. The topic is of importance, as the release of metabolites during sludge treatment may pose a risk to water quality if supernatant is recycled to the head of the plant. The study of the kinetics of cell damage and metabolite release into the supernatant is complicated by simultaneous and rapid natural removal processes. In this study, the release of organic material from cyanobacterial sludge was monitored simultaneously with secondary metabolites (microcystins (MCs), cylindrospermopsin (CYN), and geosmin (GSM)) as an additional parameter to aid in understanding the range of processes occurring in sludge. Only GSM produced by Dolichospermum circinale was found to represent a low risk, as the compound is readily degraded. In contrast, the metabolites CYN and MC were shown to increase in concentration during simulated sludge treatment, suggesting that this could occur within full scale sludge treatment facilities with a range of cyanobacteria species, metabolites and water quality. A generic risk matrix was developed, incorporating the type of cyanobacteria, metabolite production, and the treatment processes available to water utilities for the mitigation of the identified risks. cyanobacteria, cyanotoxins, dissolved organic carbon (DOC), sludge storage, water treatment © IWA Publishing 2016 Supplementary data SUPPLEMENTARY INFORMATION- docx file You do not currently have access to this content.