Details

Autor(en) / Beteiligte

• Ji, Fang
• Liu, Ying
• Hao, Rui
• Li, Gang
• Zhou, Yuguang
• Dong, Renjie

Titel

Biomass production and nutrients removal by a new microalgae strain Desmodesmus sp. in anaerobic digestion wastewater

Ist Teil von

• Bioresource technology, 2014-06, Vol.161, p.200-207

Ort / Verlag

Kidlington: Elsevier Ltd

Erscheinungsjahr

2014

Quelle

MEDLINE

Beschreibungen/Notizen

• [Display omitted] •A new strain of algae was isolated from fresh water.•This novel strain was identified as Desmodesmus sp. by 18s rRNA and ITS1 analysis.•This strain could grow in anaerobic digestion wastewater (ADW).•Maximum nutrients removal was observed at 10.0% ADW.•This strain could remove 100% NH4–N, TP and PO4–P, and 75.50% TN at 10.0% ADW. Anaerobic digestion wastewater (ADW), which contains large amount of nitrogen and phosphorus, particularly high concentration of ammonium, might lead to severely environmental pollution. A new unicellular green microalgae species from a wetland at the Olympic Forest Park, Beijing, China was screened based on its growth rates and nutrients removal capability under ADW. Results of 18s rDNA and ITS1 analysis indicated that this strain have a close relationship with Desmodesmus sp., named as EJ9-6. Desmodesmus sp. EJ9-6 could remove 100% NH4–N (68.691mg/L), TP (4.565mg/L) and PO4–P (4.053mg/L), and 75.50% TN (84.236mg/L) at 10.0% ADW, which the highest biomass production was 0.412g/L after 14d cultivation. Maximum nutrients removal was observed at 10.0% ADW with daily removal rates of TN, NH4–N, TP and PO4–P at 4.542, 5.284, 0.326 and 0.290mg/L/d, respectively.