The use of the fungus Dichomitus squalens for degradation in rotating biological contactor conditions
Language English Country England, Great Britain Media print-electronic
Document type Journal Article, Research Support, Non-U.S. Gov't
PubMed
22513255
DOI
10.1016/j.biortech.2012.03.080
PII: S0960-8524(12)00544-5
Knihovny.cz E-resources
- MeSH
- Color MeSH
- Coloring Agents isolation & purification metabolism MeSH
- Basidiomycota metabolism MeSH
- Biodegradation, Environmental MeSH
- Bioreactors microbiology MeSH
- Water Pollutants, Chemical isolation & purification metabolism MeSH
- Water Purification methods MeSH
- Naphthalenesulfonates isolation & purification metabolism MeSH
- Rotation MeSH
- Publication type
- Journal Article MeSH
- Research Support, Non-U.S. Gov't MeSH
- Names of Substances
- Coloring Agents MeSH
- Water Pollutants, Chemical MeSH
- Naphthalenesulfonates MeSH
- Remazol black B MeSH Browser
Biodegradation potential of Dichomitus squalens in biofilm cultures and rotating biological contactor (RBC) was investigated. The fungus formed thick biofilms on inert and lignocellulosic supports and exhibited stable activities of laccase and manganese peroxidase to reach 40-62 and 25-32% decolorization of anthraquinone Remazol Brilliant Blue R and heterocyclic phthalocyanine dyes, respectively. The decolorization ceased when glucose concentration dropped to 1 mmol l(-1). In RBC reactor, respective decolorizations of Remazol Brilliant Blue R and heterocyclic Methylene Blue and Azure B dyes (50 mg l(-1)) attained 99%, 93%, and 59% within 7, 40 and 200 h. The fungus exhibited tolerance to coliform and non-coliform bacteria on rich organic media, the inhibition occurred only on media containing tryptone and NaCl. The degradation efficiency in RBC reactor, capability to decolorize a wide range of dye structures and tolerance to bacterial stress make D. squalens an organism applicable to remediation of textile wastewaters.
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