Filamentous fungi from textile effluent and their potential application for bioremediation process

Abstract

The inappropriate disposal of toxic compounds generated by industrial activity has considerably impacted the environment. Microbial communities inhabiting contaminated sites may represent ecological alternatives for the decontamination of environments. The present work aimed to search the potential of fungi isolated from wastewater treatment plant of a textile industry for bioremediation processes. Twentythree fungi previously isolated from textile effl uent were evaluated for their abilities to degrade pollutants using heavy metal and hydrocarbon tolerance assays. One isolate was subjected to pyrene degradation due its ability to tolerate hydrocarbon. The majority of isolates were resistant to at least two metals tested, i.e. chrome, copper, lead and aluminum. Isolates Penicillium sp. ITF 2, Penicillium rubens ITF 4, Penicillium sp. ITF 12 and ITF 20 (not identifi ed) showed tolerance to tested heavy metals in all concentrations.ITF 12 and ITF 20 were able to tolerate benzene, toluene and hexane, separately. ITF 12 was able to degrade 24.9% of pyrene after 5 days of cultivation. The results encourage future studies to optimize the tolerance and degradation assay using the isolates that showed the best results, as well as studies on the treatment of environments contaminated with heavy metals and hydrocarbons, including industrial textile effl uents.

Indigenous filamentous fungi isolated from zirconia processing wastewater as a potential biosorbent for aqueous thorium(IV) ions

“…Results showed that the wastewater sample had a thorium content of 5.50 ppm, temperature of 26.3°C, and pH of 2.4, indicating the possibility of microbial growth, particularly fungi. Previous studies have shown that fungi can survive in various extreme conditions, such as hot springs, hypersaline environments, heavy metal/radionuclides contaminated sites, textile/ industrial wastewater, and others (Tkavc et al 2017;Sanjaya et al 2021;Ezeonuegbu et al 2022;Lira et al 2022;Saryono et al 2022;Wingfield et al 2023).…”