Characteristic of biosorption of chromium(III) and chromium(VI) by green ganggange Spirogyrasubsalsa sp. biomass was investigated in a batch system. Based on FTIR spectroscopyspectra can be concluded that the biomass of green ganggange S. Subsalsa containingcarboxylate groups, amines, amides, amino, carbonyl and hydroxyl, in addition to thecompounds of silicon, sulfur and phosphorus. The results showed that the capacity biosorpsistrongly influenced by solution pH, contact time and initial concentration of the solution. Themaximum sorption of Cr3+ cations was seen at pH 4,0 and than constant at the higher pH. Biosorption of Cr6+, exist as Cr2O72- anion, decrease by increase of solution pH. The maximumbiosorption capacity for Cr3+ and Cr ions are 1.82 mg (0.035 mmol) and 1.51 mg (0.029 mmol)per gram of dry biomass, respectively.  Rate of biosorption is relatively fast, with long intervalsof 30 minutes, each ion is absorbed approximately 95.7% and 86.5%. Absorption is alsoinfluenced by rapid mixing of biomass, while the factors of particle size and heating biosorbenbiomass absorption is less affected.

Published by Universitas Udayana
Journal Name Bumi Lestari
Contact Phone+62361 - 261182
Contact Name Abd. Rahman As-syakur
Contact Email assyakur@unud.ac.id
Location Kab. badung, Bali INDONESIA
Website blje| https://ojs.unud.ac.id/index.php/blje|
ISSN ISSN : 14119668, EISSN : 25276158, DOI : https://doi.org/10.24843/blje,
Core Subject Humanities, Science, Agriculture, Social,
Meta Subject Agriculture, Biological Sciences & Forestry, Humanities, Earth & Planetary Sciences, Energy, Environmental Science,
Meta DescBumi Lestari Journal of Environment (p-ISSN: 1411-9668; e-ISSN: 2527-6158) is a peer-reviewed journal, presents original research articles and letters in all areas of environmental studies and environmental sciences (biotic, abiotic and social/cultural). This journal has been indexed by cabdirect cabi.org, AJD (Academic Journals Database), ISJD (Indonesian Scientific Journal Database), IndexCopernicus, Portal Garuda, researchBib and Google Scholar. The journal is published by Environmental Research Center (PPLH) of Udayana University. The journal is published two times a year: February and August in both printed and online versions. The online version is free access and download. This journal is devoted to publish research papers such as environmental biology, environmental physics, environmental health, ecology, geosciences and environmental chemistry including such matters as land, water, food, conservation, population, risk analysis, pollution, energy, economics of ecological and non-ecological approaches, social advocacy of arguments for change, analytical methods, legal measures, implications of urbanism, energy choices, waste disposal, health effects, recycling, transport systems, political approaches, social impacts and other issues of mass society. There is concern also for marginal areas, under-developed societies, minorities, species loss, etc. The purpose of this journal is to provide input and its solution to the environmental problems that has happened or will be happen from the results of researchs.
PenulisMawardi, Mawardi , Munaf, E. , Kosela, S. , Wibowo, Widayanti
Publisher ArticleEnvironmental Research Center (PPLH) of Udayana University
Subtitle Article Bumi Lestari Journal of Environment Vol 14 No 2 (2014)
Scholar Googlehttp://scholar.google.com/scholar?q=%2Bintitle%3A&…
View Articlehttps://ojs.unud.ac.id/index.p…
DOI
DOI Number
Download Article [1] https://ojs.unud.ac.id/index.php/blje/ar…
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