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- Title
Bioremoval of heavy metals from industrial effluent by fixed-bed column of red macroalgae.
- Authors
Ibrahim, Wael M; Mutawie, Hawazin H
- Abstract
Three different species of nonliving red algal biomass Laurancia obtusa, Geldiella acerosa and Hypnea sp. were used to build three types of fixed-bed column for the removal of toxic heavy metal ions such as Cu2+, Zn2+, Mn2+ and Ni2+ from industrial effluent. In general, the highest efficiency of metal ion bioremoval was recorded for algal column of L. obtusa followed by G. acerosa and the lowest one was recorded for Hypnea sp., with mean removal values of 94%, 85% and 71%, respectively. The obtained results showed that biological treatments of industrial effluents with these algal columns, using standard algal biotest, Pseudokirchneriella subcapitata, were capable of reducing effluent toxicities from 75% to 15%, respectively. Red algal column may be considered as an inexpensive and efficient alternative treatment for conventional removal technology, for sequestering heavy metal ions from industrial effluents.
- Subjects
RED algae; HEAVY metals removal (Sewage purification); FIXED bed reactors; BIOMASS; METAL ions; BIOLOGICAL nutrient removal; HEAVY metal toxicology; INDUSTRIAL wastes
- Publication
Toxicology & Industrial Health, 2013, Vol 29, Issue 1, p38
- ISSN
0748-2337
- Publication type
Article
- DOI
10.1177/0748233712445044