Experimental Design for Removal of Fe(II) and Zn(II) Ions by Different Lactic Acid Bacteria Biomasses
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH, cilt.9, sa.1, ss.93-100, 2015 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 9 Sayı: 1
- Basım Tarihi: 2015
- Dergi Adı: INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.93-100
- Anahtar Kelimeler: Lactobacillus delbrueckii ssp bulgaricus, Streptococcus thermophillus, Removal, HEAVY-METAL BIOSORPTION, WASTE-WATER, AQUEOUS-SOLUTION, COPPER(II) IONS, ADSORPTION, CADMIUM, ALGAE, LEAD
- Süleyman Demirel Üniversitesi Adresli: Evet
Özet
This paper investigates the removal of iron and zinc from aqueous solution with daily wastewater in three different biomasses such as Lactobacillus delbrueckii ssp bulgaricus (Lb-12), Streptococcus thermophillus (STM-7) and a combination of both this bacteria culture (YC-380) and the optimization of removal efficiency using MINITAB program. A full 2(3) factorial design of experiments was applied to determine the optimum conditions of removal of Fe(II) and Zn(II) from aqueous solution. The three tested factors were biomass concentration (5-15 g/L), pH (3-9), and temperature (20-40 degrees C). The optimum biomass concentration, pH and temperature were found to be 15 g/L, 9 and 20 degrees C, respectively. Under optimal value of process parameters, 90-100% Fe(II) and 70-90% Zn(II) removal were obtained with all tested biomasses. Removal results indicated that a combination of both this bacteria might be a promising biomass alternative to ST-M7 and Lb.12 in removing Zn(II) and Fe(II) ions from waters.