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Title: Microalgae as bioabsorbents for treating mixture of electroplating and sewage effluent

The effectiveness of copper and nickel uptake by microalgae grown in the mixture of electroplating effluent and sewage was studied. The results showed that a high percentage of copper removal (68.1%-88.2%) was achieved by Chlorella pyrenoidosa (strain No. 26) reared in the mixture of 90% electroplating effluent and 10% raw sewage during the first 3 days despite the fact that cell growth was inhibited. Similar results were also obtained by using Chlorella HKBC-C3, another species collected from one of the heavy metal polluted sites in Hong Kong, isolated and cultured in the Biology Department. There was no significant difference (P greater than 0.05) in the removal of copper and nickel from the effluent between these 2 algal species. However, it was noted that removal of nickel from the mixture by the two species were comparatively lower (less than 20%) than the removal of copper (greater than 68%).
Authors:
; ;  [1]
  1. (Department of Biology, Hong Kong Baptist College, Kowloon (Hong Kong))
Publication Date:
OSTI Identifier:
5755732
Resource Type:
Journal Article
Resource Relation:
Journal Name: Biomedical and Environmental Sciences; (United States); Journal Volume: 4:3
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; CHINA; WATER POLLUTION; CHLORELLA; SENSITIVITY; COPPER; UPTAKE; NICKEL; SEWAGE SLUDGE; DECONTAMINATION; ABSORPTION; CHEMICAL EFFLUENTS; ELECTROPLATING; ALGAE; ASIA; BIOLOGICAL MATERIALS; BIOLOGICAL WASTES; CHEMICAL WASTES; CHLOROPHYCOTA; CLEANING; DEPOSITION; ELECTRODEPOSITION; ELECTROLYSIS; ELEMENTS; LYSIS; MATERIALS; METALS; MICROORGANISMS; NONRADIOACTIVE WASTES; PLANTS; PLATING; POLLUTION; SEWAGE; SLUDGES; SURFACE COATING; TRANSITION ELEMENTS; UNICELLULAR ALGAE; WASTES 540320* -- Environment, Aquatic-- Chemicals Monitoring & Transport-- (1990-); 560300 -- Chemicals Metabolism & Toxicology