A Bench-scale study of biomass production by Chlorella pyrenoidosa cultivated in anaerobic poultry waste effluent

Yu Wu, Wei Cao, Mengzi Wang, Baoming Li, Yuanhui Zhang

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

It is an economical way of utilizing microalgae to yield biomass and treat wastewater simultaneously because the biomass can be converted to biodiesel or other value-added products. The present study was to investigate the feasibility of using effluent from poultry waste anaerobic digestion (PWADE) as a nutritional medium for cultivation of green microalgae Chlorella pyrenoidosa. Different dilution multiples of 10, 20, 50, 100 and 200 were applied to the PWADE and algal growth was compared in regard to growth rate, nutrient removal efficiency, and biomass production. The effectiveness of adding essential nutrients to the PWADE was also evaluated. Results showed that the maximum biomass of 0.765 g L-1 and chlorophyll-a content of 24.10 mg L -1 were obtained on 20th day at 2% dilution with 5 g L-1 NaHCO3. From a batch culture with 2% diluted PWADE and added nutrients, algae removed ammonia and total phosphorus by 100% and 59.5%, respectively. The biomass was rich in protein (38% w/w) that can be applied as a profitable animal feed supplement and a promising candidate for biofuel production.

Original languageEnglish (US)
Title of host publicationAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2013, ASABE 2013
PublisherAmerican Society of Agricultural and Biological Engineers
Pages666-675
Number of pages10
ISBN (Print)9781627486651
StatePublished - Jan 1 2013
Externally publishedYes
EventAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2013 - Kansas City, MO, United States
Duration: Jul 21 2013Jul 24 2013

Publication series

NameAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2013, ASABE 2013
Volume1

Other

OtherAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2013
CountryUnited States
CityKansas City, MO
Period7/21/137/24/13

Keywords

  • Anaerobic digestion effluent
  • Biomass
  • Chlorella pyrenoidosa
  • Nutrient removal
  • Poultry waste

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Bioengineering

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