Cited by 725Algal biology and biofuel productionWastewater Treatment and ReuseAquatic Ecosystems and Phytoplankton Dynamics

Characterization of a microalga Chlorella sp. well adapted to highly concentrated municipal wastewater for nutrient removal and biodiesel production

Li, Yecong, Chen, Yi-Feng, Chen, Paul, Min, Min, Zhou, Wenguang, Martinez, Blanca, Zhu, Jun, Ruan, Roger·2011·Bioresource Technology

Abstract

The feasibility of growing Chlorella sp. in the centrate, a highly concentrated municipal wastewater stream generated from activated sludge thickening process, for simultaneous wastewater treatment and energy production was tested. The characteristics of algal growth, biodiesel production, wastewater nutrient removal and the viability of scale-up and the stability of continuous operation were examined. Two culture media, namely autoclaved centrate (AC) and raw centrate (RC) were used for comparison. The results showed that by the end of a 14-day batch culture, algae could remove ammonia, total nitrogen, total phosphorus, and chemical oxygen demand (COD) by 93.9%, 89.1%, 80.9%, and 90.8%, respectively from raw centrate, and the fatty acid methyl ester (FAME) content was 11.04% of dry biomass providing a biodiesel yield of 0.12 g-biodiesel/L-algae culture solution. The system could be successfully scaled up, and continuously operated at 50% daily harvesting rate, providing a net biomass productivity of 0.92 g-algae/(L day).

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Crossref · 10.1016/j.biortech.2011.01.091

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Authors
Li, Y., Chen, Y.-F., Chen, P., Min, M., Zhou, W., Martinez, B., Zhu, J., & Ruan, R.
Affiliations
University of Minnesota (US)
Corresponding author
Ruan, Roger
Venue
Bioresource Technology
Publisher
Elsevier BV
Published
2011-04
Volume
102
Issue
8
Pages
5138-5144
ISSN
0960-8524 (ISSN-L)
OpenAlex
W2030188168
Cited by
724
References
38
Citations by year
2026: 16 · 2025: 26 · 2024: 28 · 2023: 36 · 2022: 56 · 2021: 57 · 2020: 70 · 2019: 79 · 2018: 67 · 2017: 62 · 2016: 68 · 2015: 38 · 2014: 57 · 2013: 32 · 2012: 23
FWCI
15.83
Type
journal article
Language
en
Open access
closed
Locations
  • Bioresource Technology (publishedVersion)
  • PubMed (publishedVersion)
Funders
University of Minnesota Initiative for Renewable Energy (IREE)
Topics
  • Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Algal biology and biofuel production
  • Physical Sciences › Environmental Science › Waste Management and Disposal › Wastewater Treatment and Reuse
  • Physical Sciences › Environmental Science › Environmental Chemistry › Aquatic Ecosystems and Phytoplankton Dynamics
Keywords
Chlorella, microalgae, municipal wastewater, nutrient removal, biodiesel production, fatty acid methyl esters, algal growth, scale-up, continuous operation, biomass productivity, nitrogen removal, phosphorus removal, COD removal
MeSH terms
Adaptation, Physiological, Chlorella, Culture Media, Biofuels, Microalgae

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