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Environmental phenotypic variation of Scenedesmus dimorphus in high‐rate algae ponds and its relationship to wastewater treatment and biomass production
Author(s) -
Oron Gideon,
Shelef Gedaliah,
Levi Anna
Publication year - 1981
Publication title -
biotechnology and bioengineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.136
H-Index - 189
eISSN - 1097-0290
pISSN - 0006-3592
DOI - 10.1002/bit.260231003
Subject(s) - algae , biomass (ecology) , wastewater , biology , sewage treatment , scenedesmus , ecology , environmental science , pulp and paper industry , environmental engineering , engineering
Abstract During the course of operating high‐rate algae ponds (HRAP) for wastewater treatment and protein production, changes were found in the two main algae species. The observed changes were interpreted to be a reflection of the operation regime and loading combined with environmental conditions. To verify that these changes were phenotypic and not genetic, experiments were conducted on Scenedesmus dimorphus growing in miniponds (110 L) as well as in the laboratory. The results showed that the changes in S. dimorphus were external and due to the changes in the loading and operating conditions of the ponds adjusted to changing environmental conditions. It was found that wastewater treatment efficiency and algal yield are also correlated with the S. dimorphus type.