Bioaccumulation of arsenic by freshwater algae and the application to the removal of inorganic arsenic from an aqueous phase. Part II. By Chlorella vulgaris isolated from arsenic-polluted environment

Journal Article · Tue Jan 01 00:00:00 EST 1985 · Sep. Sci. Technol.; (United States)

DOI:https://doi.org/10.1080/01496398508058356· OSTI ID:5092748

Maeda, S; Nakashima, S; Takeshita, T; Higashi, S

Green algae, Chlorella vulgaris Beijerinck var. vulgaris, isolated from an arsenic-polluted environment, was examined for the effects of arsenic levels, arsenic valence, temperature illumination intensity, phosphate levels, metabolism inhibitors, heat treatment on the growth, and arsenic bioaccumulation. The following conclusions were reached from the experimental results: (a) The growth of the cell increased with an increase of arsenic(V) levels of the medium up to 1000 ppm, and the cell survived even at 10,000 ppm; (b) The arsenic bioaccumulation increased with an increase of the arsenic level. The maximum accumulation of arsenic was about 50,000 ..mu..g As/g dry cell; (c) The growth decreased with an increase of the arsenic(III) level and the cell was cytolyzed at levels higher than 40 ppm; (d) No arsenic(V) was bioaccumulated by a cell which had been pretreated with dinitrophenol (respiratory inhibitor) or with heat. Little effect of NaN/sub 3/ (photosynthesis inhibitor) on the bioaccumulation was observed. 8 references, 2 figures, 6 tables.

• Research Organization: Kagoshima, Univ., Japan
• OSTI ID: 5092748
• Journal Information: Sep. Sci. Technol.; (United States), Vol. 20:2-3
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
54 ENVIRONMENTAL SCIENCES
ARSENIC
BIOLOGICAL ACCUMULATION
CHLORELLA
QUANTITATIVE CHEMICAL ANALYSIS
PHOSPHATES
BIOLOGICAL FUNCTIONS
EXPERIMENTAL DATA
METABOLISM
TEMPERATURE EFFECTS
ALGAE
CHEMICAL ANALYSIS
DATA
ELEMENTS
FUNCTIONS
INFORMATION
MICROORGANISMS
NUMERICAL DATA
OXYGEN COMPOUNDS
PHOSPHORUS COMPOUNDS
PLANTS
SEMIMETALS
UNICELLULAR ALGAE
560303* - Chemicals Metabolism & Toxicology- Plants- (-1987)
520200 - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)