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Anaerobic Co-Digestion of Microalgae Scenedesmus sp. and TWAS for Biomethane Production.
Water Environ Res. 2016 Jan; 88(1):13-20.WE

Abstract

The paper investigated the feasibility of biomethane (bio-CH4) production from the anaerobic co-digestion of the microalgae Scenedesmus quadricauda (S. quadricauda) and thickened waste activated sludge (TWAS). The concept was tested in bench-scale anaerobic digesters by varying the proportions of volatile solids (VS) loading from S. quadricauda and TWAS and two critical operational parameters, temperature and alkalinity. The CH(4) production for the various S. quadricauda and TWAS proportions ranged from 234 to 318 mL/g of chemical oxygen demand (COD) digested and 329 to 530 mL/g of VS digested at 35 °C. The reductions in total solids (TS), COD, and VS ranged from 25 to 44%, 46 to 53%, and 40 to 53%, respectively. Temperature had a significant effect on CH(4) production, lower temperatures greatly reduced CH(4) production. No significant difference in CH(4) production was observed for experiments conducted at alkalinity levels of 70, 1630, and 3200 mg/L as CaCO(3).

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Publisher Full Text (DOI)

Authors+Show Affiliations

Garoma T
San Diego State University, Department of Civil, Construction and Environmental Engineering, 5500 Campanile Drive, San Diego California 92182, USA.
Nguyen D
No affiliation info available

MeSH

AnaerobiosisBiofuelsBiomassHydrogen-Ion ConcentrationMethaneMicroalgaeScenedesmusSewageTemperatureWaste Disposal, Fluid

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

26803022

Citation

Garoma, Temesgen, and Don Nguyen. "Anaerobic Co-Digestion of Microalgae Scenedesmus Sp. and TWAS for Biomethane Production." Water Environment Research : a Research Publication of the Water Environment Federation, vol. 88, no. 1, 2016, pp. 13-20.
Garoma T, Nguyen D. Anaerobic Co-Digestion of Microalgae Scenedesmus sp. and TWAS for Biomethane Production. Water Environ Res. 2016;88(1):13-20.
Garoma, T., & Nguyen, D. (2016). Anaerobic Co-Digestion of Microalgae Scenedesmus sp. and TWAS for Biomethane Production. Water Environment Research : a Research Publication of the Water Environment Federation, 88(1), 13-20. https://doi.org/10.2175/106143015X14362865227472
Garoma T, Nguyen D. Anaerobic Co-Digestion of Microalgae Scenedesmus Sp. and TWAS for Biomethane Production. Water Environ Res. 2016;88(1):13-20. PubMed PMID: 26803022.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Anaerobic Co-Digestion of Microalgae Scenedesmus sp. and TWAS for Biomethane Production. AU - Garoma,Temesgen, AU - Nguyen,Don, PY - 2016/1/24/entrez PY - 2016/1/24/pubmed PY - 2016/4/20/medline SP - 13 EP - 20 JF - Water environment research : a research publication of the Water Environment Federation JO - Water Environ Res VL - 88 IS - 1 N2 - The paper investigated the feasibility of biomethane (bio-CH4) production from the anaerobic co-digestion of the microalgae Scenedesmus quadricauda (S. quadricauda) and thickened waste activated sludge (TWAS). The concept was tested in bench-scale anaerobic digesters by varying the proportions of volatile solids (VS) loading from S. quadricauda and TWAS and two critical operational parameters, temperature and alkalinity. The CH(4) production for the various S. quadricauda and TWAS proportions ranged from 234 to 318 mL/g of chemical oxygen demand (COD) digested and 329 to 530 mL/g of VS digested at 35 °C. The reductions in total solids (TS), COD, and VS ranged from 25 to 44%, 46 to 53%, and 40 to 53%, respectively. Temperature had a significant effect on CH(4) production, lower temperatures greatly reduced CH(4) production. No significant difference in CH(4) production was observed for experiments conducted at alkalinity levels of 70, 1630, and 3200 mg/L as CaCO(3). SN - 1061-4303 UR - https://www.unboundmedicine.com/medline/citation/26803022/Anaerobic_Co_Digestion_of_Microalgae_Scenedesmus_sp__and_TWAS_for_Biomethane_Production_ DB - PRIME DP - Unbound Medicine ER -