Universidad Complutense de Madrid
E-Prints Complutense

Membrane bioreactor wastewater treatment plants reveal diverse yeast and protist communities of potential significance in biofouling

Impacto

Downloads

Downloads per month over past year

Liébana, Raquel and Arregui García-Rovés, Lucía and Belda Aguilar, Ignacio and Gamella, Luis and Santos de la Sen, Antonio and Marquina Díaz, Domingo and Serrano Barrero, Susana Lourdes (2015) Membrane bioreactor wastewater treatment plants reveal diverse yeast and protist communities of potential significance in biofouling. Biofouling, 31 (1). pp. 71-82. ISSN 0892-7014

[img] PDF
Restringido a Repository staff only

1MB

Official URL: http://www.tandfonline.com/toc/gbif20/current



Abstract

The yeast community was studied in a municipal full-scale membrane bioreactor wastewater treatment plant (MBR-WWTP). The unexpectedly high diversity of yeasts indicated that the activated sludge formed a suitable environment for them to proliferate, with cellular concentrations of 2.2 ± 0.8 × 103 CFU ml−1 . Sixteen species of seven genera were present in the biological reactor, with Ascomycetes being the most prevalent group (93%). Most isolates were able to grow in a synthetic wastewater medium, adhere to polyethylene surfaces, and develop biofilms of variable complexity. The relationship between yeast populations and the protists in the MBR-WWTP was also studied, revealing that some protist species preyed on and ingested yeasts. These results suggest that yeast populations may play a role in the food web of a WWTP and, to some extent, contribute to membrane biofouling in MBR systems.


Item Type:Article
Uncontrolled Keywords:wastewater treatment, membrane bioreactor, biofouling, yeast biofilms, protists, predation
Subjects:Medical sciences > Biology
Medical sciences > Biology > Microbiology
ID Code:42349
Deposited On:25 Apr 2017 16:58
Last Modified:10 Dec 2018 15:30

Origin of downloads

Repository Staff Only: item control page