The effects of salinity on the growth and biochemical properties of Chlamydomonas mexicana GU732420 cultivated in municipal wastewater

El Sayed Salama, Reda A.I. Abou-Shanab, Jung Rae Kim, Sangho Lee, Seong Heon Kim, Sang Eun Oh, Hyun Chul Kim, Hyunseog Roh, Byong Hun Jeon

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

A freshwater microalga Chlamydomonas mexicana was grown on municipal wastewater with different levels of salinity up to 400 mmol/L NaCl, and the biochemical properties were characterized after 10 days of cultivation. C. mexicana showed the higher specific growth rates for 100 and 200 mmol/L NaCl. Nitrogen was completely removed within 10 days as a result of algal growth promoted by the addition of 200-400 mmol/L NaCl. Phosphorus removal increased from 77-84% as the concentration of NaCl increased from 100 to 400 mmol/L. The highest removal of total inorganic carbon (66%) was obtained with the addition of 200 mmol/L NaCl. The lipid content increased from 17% to 38% as the concentration of NaCl increased from 0 to 400 mmol/L. The total fatty acid content and glycerol yield of C. mexicana increased 1.8- and 4-fold in wastewater amended with NaCl, respectively. Fatty acids accumulated in the algal biomass were mainly composed of palmitic (27-29%), γ-linolenic (27-30%), and linolelaidic acids (16-18%). The optimal condition for fatty acids production in C. mexicana was observed when the municipal wastewater was amended with 100-200 mmol/L NaCl with a simultaneous removal of nutrients.

Original languageEnglish
Pages (from-to)1491-1498
Number of pages8
JournalEnvironmental Technology (United Kingdom)
Volume35
Issue number12
DOIs
Publication statusPublished - 2014 Jun 18

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Wastewater
Fatty Acids
fatty acid
salinity
wastewater
microalga
inorganic carbon
Linoleic Acid
Glycerol
Phosphorus
Nutrients
Biomass
Nitrogen
Carbon
lipid
fold
phosphorus
Lipids
nutrient
acid

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Water Science and Technology
  • Waste Management and Disposal

Cite this

Salama, El Sayed ; Abou-Shanab, Reda A.I. ; Kim, Jung Rae ; Lee, Sangho ; Kim, Seong Heon ; Oh, Sang Eun ; Kim, Hyun Chul ; Roh, Hyunseog ; Jeon, Byong Hun. / The effects of salinity on the growth and biochemical properties of Chlamydomonas mexicana GU732420 cultivated in municipal wastewater. In: Environmental Technology (United Kingdom). 2014 ; Vol. 35, No. 12. pp. 1491-1498.
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The effects of salinity on the growth and biochemical properties of Chlamydomonas mexicana GU732420 cultivated in municipal wastewater. / Salama, El Sayed; Abou-Shanab, Reda A.I.; Kim, Jung Rae; Lee, Sangho; Kim, Seong Heon; Oh, Sang Eun; Kim, Hyun Chul; Roh, Hyunseog; Jeon, Byong Hun.

In: Environmental Technology (United Kingdom), Vol. 35, No. 12, 18.06.2014, p. 1491-1498.

Research output: Contribution to journalArticle

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AU - Jeon, Byong Hun

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