Evaluation of Chlorella vulgaris and Scenedesmus obliquus growth on pretreated organic solid waste digestate.
Waste Manag
; 119: 235-241, 2021 Jan 01.
Article
in En
| MEDLINE
| ID: mdl-33075620
ABSTRACT
In this research Scenedesmus obliquus and Chlorella vulgaris growth was tested on digestate sludge obtained from the anaerobic co-digestion treatment of the organic fraction of municipal solid waste (OFMSW) together with waste activated sludge (WAS). Digestate was diluted 110 and tested in three batch experimental conditions with no pre-treatments (noPT), after centrifugation (AC) and after filtration (AUF), in order to evaluate microalgae limiting growth factors. The best growth was obtained by C. vulgaris on digestate AC compared to S. obliquus, reaching 479 ± 31 cell million ml-1 and 131 ± 12 cell million ml-1 respectively. Ammonia removal evaluated in C. vulgaris and S. obliquus cultures was 99.2% ± 0.3 and 98.146% ± 0.008 in AC condition, respectively. Considering that AUF showed similar microalgae growth values, the digestate pretreatment for microalgae growth, could be limited to centrifugation.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Scenedesmus
/
Chlorella vulgaris
/
Microalgae
Language:
En
Journal:
Waste Manag
Journal subject:
SAUDE AMBIENTAL
/
TOXICOLOGIA
Year:
2021
Type:
Article
Affiliation country:
Italy