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Cultivating Chlorella sp. in a pilot-scale photobioreactor using centrate wastewater for microalgae biomass production and wastewater nutrient removal.
Appl Biochem Biotechnol. 2011 Sep; 165(1):123-37.AB

Abstract

This study is concerned with a novel mass microalgae production system which, for the first time, uses "centrate", a concentrated wastewater stream, to produce microalgal biomass for energy production. Centrate contains a high level of nutrients that support algal growth. The objective of this study was to investigate the growth characteristics of a locally isolated microalgae strain Chlorella sp. in centrate and its ability to remove nutrients from centrate. A pilot-scale photobioreactor (PBR) was constructed at a local wastewater treatment plant. The system was tested under different harvesting rates and exogenous CO(2) levels with the local strain of Chlorella sp. Under low light conditions (25 μmol·m(-2)s(-1)) the system can produce 34.6 and 17.7 g·m(-2)day(-1) biomass in terms of total suspended solids and volatile suspended solids, respectively. At a one fourth harvesting rate, reduction of chemical oxygen demand, total Kjeldahl nitrogen, and soluble total phosphorus were 70%, 61%, and 61%, respectively. The addition of CO(2) to the system did not exhibit a positive effect on biomass productivity or nutrient removal in centrate which is an organic carbon rich medium. The unique PBR system is highly scalable and provides a great opportunity for biomass production coupled with wastewater treatment.

Authors+Show Affiliations

Bioproducts and Biosystems Engineering Department, University Of Minnesota, 1390 Eckles Ave, Saint Paul, MN 55108, USA.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

21494756

Citation

Min, Min, et al. "Cultivating Chlorella Sp. in a Pilot-scale Photobioreactor Using Centrate Wastewater for Microalgae Biomass Production and Wastewater Nutrient Removal." Applied Biochemistry and Biotechnology, vol. 165, no. 1, 2011, pp. 123-37.
Min M, Wang L, Li Y, et al. Cultivating Chlorella sp. in a pilot-scale photobioreactor using centrate wastewater for microalgae biomass production and wastewater nutrient removal. Appl Biochem Biotechnol. 2011;165(1):123-37.
Min, M., Wang, L., Li, Y., Mohr, M. J., Hu, B., Zhou, W., Chen, P., & Ruan, R. (2011). Cultivating Chlorella sp. in a pilot-scale photobioreactor using centrate wastewater for microalgae biomass production and wastewater nutrient removal. Applied Biochemistry and Biotechnology, 165(1), 123-37. https://doi.org/10.1007/s12010-011-9238-7
Min M, et al. Cultivating Chlorella Sp. in a Pilot-scale Photobioreactor Using Centrate Wastewater for Microalgae Biomass Production and Wastewater Nutrient Removal. Appl Biochem Biotechnol. 2011;165(1):123-37. PubMed PMID: 21494756.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Cultivating Chlorella sp. in a pilot-scale photobioreactor using centrate wastewater for microalgae biomass production and wastewater nutrient removal. AU - Min,Min, AU - Wang,Liang, AU - Li,Yecong, AU - Mohr,Michael J, AU - Hu,Bing, AU - Zhou,Wenguang, AU - Chen,Paul, AU - Ruan,Roger, Y1 - 2011/04/15/ PY - 2010/11/12/received PY - 2011/03/30/accepted PY - 2011/4/16/entrez PY - 2011/4/16/pubmed PY - 2012/2/3/medline SP - 123 EP - 37 JF - Applied biochemistry and biotechnology JO - Appl Biochem Biotechnol VL - 165 IS - 1 N2 - This study is concerned with a novel mass microalgae production system which, for the first time, uses "centrate", a concentrated wastewater stream, to produce microalgal biomass for energy production. Centrate contains a high level of nutrients that support algal growth. The objective of this study was to investigate the growth characteristics of a locally isolated microalgae strain Chlorella sp. in centrate and its ability to remove nutrients from centrate. A pilot-scale photobioreactor (PBR) was constructed at a local wastewater treatment plant. The system was tested under different harvesting rates and exogenous CO(2) levels with the local strain of Chlorella sp. Under low light conditions (25 μmol·m(-2)s(-1)) the system can produce 34.6 and 17.7 g·m(-2)day(-1) biomass in terms of total suspended solids and volatile suspended solids, respectively. At a one fourth harvesting rate, reduction of chemical oxygen demand, total Kjeldahl nitrogen, and soluble total phosphorus were 70%, 61%, and 61%, respectively. The addition of CO(2) to the system did not exhibit a positive effect on biomass productivity or nutrient removal in centrate which is an organic carbon rich medium. The unique PBR system is highly scalable and provides a great opportunity for biomass production coupled with wastewater treatment. SN - 1559-0291 UR - https://www.unboundmedicine.com/medline/citation/21494756/Cultivating_Chlorella_sp__in_a_pilot_scale_photobioreactor_using_centrate_wastewater_for_microalgae_biomass_production_and_wastewater_nutrient_removal_ L2 - https://dx.doi.org/10.1007/s12010-011-9238-7 DB - PRIME DP - Unbound Medicine ER -