تعیین دمای بهینه در جذب زیستی فلزات سنگین از محلول آبی توسط بیومس آماده‌سازی شده قارچ آسپرژیلوس نیجر

نویسندگان

1 دانش‌آموخته کارشناسی ارشد محیط زیست، دانشکده منابع طبیعی، دانشگاه تربیت مدرس، نور

2 استادیار گروه محیط زیست، دانشکده منابع طبیعی، دانشگاه تربیت مدرس، نور

چکیده

جذب زیستی، تکنولوژی نوینی است که بیومس مرده و غیرفعال و یا زنده را برای حذف فلزات سنگین از محلول آبی به‌کار می‌گیرد. عواملی مانند دما، مدت زمان تماس، pH محلول، غلظت اولیه فلزات سنگین، میزان جاذب استفاده شده و نیز سرعت مخلوط کردن جاذب و محلول حاوی فلزات می‌تواند بر میزان جذب فلزات توسط جاذب تأثیرگذار باشد. هدف از مطالعه حاضر بررسی اثر تیمارهای مختلف دما (25، 35، 45 و 55 درجه سلسیوس) بر جذب زیستی مخلوط فلزات توسط جاذب به‌منظور تعیین دمای مناسب برای حذف بیشتر فلزات سنگین از محلول آبی بود. در تحقیق حاضر از قارچ مرده آسپرژیلوس نیجر آماده‌سازی شده توسط سود 0/5 نرمال برای حذف مخلوط فلزات سنگین روی (II)، کبالت(II) و کادمیم (II) استفاده گردید. در هر چهار تیمار، دما اعمال شد و مشاهده گردید که در مورد تمامی فلزات سنگین بیشترین میزان جذب فلزات و کاهش غلظت در همان 5 دقیقه نخست اتفاق افتاد و در دقیقه 20 به تعادل رسید. درصد جذب فلزات با افزایش دما روند افزایشی نشان داد. از میان 4 تیمار مورد آزمایش، تیمار 55 درجه سلسیوس بیشترین میزان جذب فلزات و تیمار 25 درجه سلسیوس کمترین میزان جذب فلزات را نشان داد. جذب فلز کروم از 28/5 درصد در تیمار 25 به 44/7 درصد در تیمار 55 افزایش یافت. همچنین جذب فلز کادمیم از 40 تا 58 درصد و جذب فلزی روی از 37/7 تا 65/6 درصد افزایش نشان داد. حدود 60 درصد افزایش جذب توسط قارچ آسپرژیلوس نیجر به‌دلیل افزایش در میزان دما بوده است. بنابراین می‌توان بدون افزودن حجم بیومس و تنها با افزایش دما میزان جذب فلزات را افزایش داد.

کلیدواژه‌ها


عنوان مقاله [English]

Determination of Optimal Temperature for Biosorption of Heavy Metal Mixture from Aqueous Solution by Pretreated Biomass of Aspergillus niger

نویسندگان [English]

  • Javad Yousefi 1
  • Habibollah Younesi 2
  • Zahra Haj Ahmadi 1
1 Former Grad. Student of Environmental, Dept. of Natural Resources, Tarbiat Modares University, Noor
2 Assist. Prof. of Environmental , Dept. of Natural Resources, Tarbiat Modares University, Noor
چکیده [English]

Biosorption is a novel technology that uses dead and inactive biomass for removal of heavy metals from aqueous solution. Some parameters such as temperature, contact time, solution pH, initial metal concentration, biosorbent dose and also agitating speed of solution and biosorbent mixing can affect the amount of metal sorption by biosorbent. The aim of this study was to investigate the effects of different treatments of temperatures (25, 35, 45 and 55oC) on biosorption of metals mixture in order to determine optimal temperature for more metals removal from aqueous solution. This study uses dead and pretreated biomass of Aspergillus niger with 0.5N NaOH for removal of Zn(II), Co(II) and Cd(II). In all temperature treatments and in the case of all of heavy metals, maximum amount of metal sorption and concentration decrease was occurred in first 5 minutes and achieved to equilibrium after 20 minute. The percent of metals sorption show growth trend with temperature increase. Between 4 experimental treatments, 55oC treatment was shown maximum sorption and 25oC was shown minimum sorption amount. The percent of Cr(II) sorption was increase from 28.5% in 25oC to 44.7% in 55oC. Also, this increase was from 40% to 58% for Cd(II) and from 37.7% to 65.6% for Zn(II). About 60% of increase in sorption by A. niger was due to increase in temperature. Therefore the amount of metals sorption can be increase, only with temperature increase and without any biomass addition.

کلیدواژه‌ها [English]

  • Biosorption
  • Temperature
  • Aspergillus niger
  • Zn
  • CO
  • Cd
Rana, S.V.S. (2006) Environmental pollution: Health and toxicology Alpha Science International Ltd., Oxford, UK.
Peter, B. (2001) Environmental protection, health and safety Foundry Technology, 2nd Ed., Butterworth-Heinemann, Oxford
Fouladi-Fard, R., Azimi, A., and Nabi-Bidhendi, G. (1387) Cadmium biosorption in a batch reactor using excess municipal sludge powder J. of Water and Wastewater 67, 2-8
Paul, S., Bera, D., Chattopadhyay, P., and Ray, L. (2006) Biosorption of Pb(II) by Bacillus cereus M116 immobilized in calcium alginate gel J. for Hazardous Substance Research 5 (2), 1-13
Rostami, K., and Joodaki, M.R., (2002) Some studies of cadmium adsorption using Aspergillus niger, Penicillium austurianum, employing an airlift fermenter J. of Chemical Engineering 89 (1-3), 239-252
Saeedi, M., Jamshidi, A., Abessi, O., and Bayat, J. (2009) Removal of dissolved cadmium by adsorption onto walnut and almond shell charcoal: Comparison with granular activated carbon (GAC) J. of Water and Wastewater 70 (2), 16-22
Iqbal, M., and Edyvean, R.G.J. (2004) Biosorption of lead, copper and zinc ions on loofa sponge immobilized biomass of Phanerochaete chrysosporium Minerals Engineering 17 (2), 217-223
Deng, L., Su, Y., Su, H., Wang, X., and Zhu, X. (2007) Sorption and desorption of lead (II) from wastewater by green algae Cladophora fascicularis J. of Hazardous Materials 143 (1-2), 220-225
Febrianto, J., Kosasih, A.N., Sunarso, J., Ju, Y.-H., Indraswati, N., and Ismadji, S. (2009) Equilibrium and kinetic studies in adsorption of heavy metals using biosorbent: A summary of recent studies J. of Hazardous Materials 162 (2-3), 616-645
Romera, E., González, F., Ballester, A., Blázquez, M.L., and Muñoz, J.A., (2007) Comparative study of biosorption of heavy metals using different types of algae Bioresource Technology 98 (17), 3344-3353
Selatnia, A., Bakhti, M.Z., Madani, A., Kertous, L., and Mansouri, Y. (2004) Biosorption of Cd2+ from aqueous solution by a NaOH-treated bacterial dead Streptomyces rimosus biomass Hydrometallurgy 75 (1-4), 11-24
Barros Júnior, L.M., Macedo, G.R., Duarte, M.M.L., Silva, E.P., and Lobato, A.K.C.L. (2003) Biosorption of cadmium using the fungus Aspergillus niger 20, 229-239
Dursun, A.Y., Uslu, G., Cuci, Y., and Aksu, Z. (2003) Bioaccumulation of copper(II), lead(II) and chromium(VI) by growing Aspergillus niger Process Biochemistry 38 (12), 1647-1651
Lo, W., Chua, H., and Lam, K.-H. (1999) A comparative investigation on the biosorption of lead by filamentous fungal biomass Chemosphere 39 (15), 2723-2736
Amini, M., Younesi, H., Bahramifar, N., Lorestani, A.A.Z., Ghorbani, F., Daneshi, A., and Sharifzadeh, M. (2008) Application of response surface methodology for optimization of lead biosorption in an aqueous solution by Aspergillus niger J. of Hazardous Materials 154 (1-3), 694-702
Mungasavalli, D.P., Viraraghavan, T., and Jin, Y.-C. (2007) Biosorption of chromium from aqueous solutions by pretreated Aspergillus niger: Batch and column studies Colloids and Surfaces A: Physicochemical and Engineering Aspects 301 (1-3), 214-223
Nuhoglu, Y., and Malkoc, E. (2009) Thermodynamic and kinetic studies for environmentaly friendly Ni(II) biosorption using waste pomace of olive oil factory Bioresource Technology 100 (8), 2375-2380
Iftikhar, A.R., Bhatti, H.N., Hanif, M.A., and Nadeem, R. (2009) Kinetic and thermodynamic aspects of Cu(II) and Cr(III) removal from aqueous solutions using rose waste biomass J. of Hazardous Materials 161 (2-3), 941-947
Khambhaty, Y., Mody, K., Basha, S., and Jha, B. (2009) Kinetics, equilibrium and thermodynamic studies on biosorption of hexavalent chromium by dead fungal biomass of marine Aspergillus niger J. of Chemical Engineering 145 (3), 489-495
Kapoor, A., Viraraghavan, T., and Cullimore, D.R. (1999) Removal of heavy metals using the fungus Aspergillus niger Bioresource Technology 70 (1), 95-104
Yan, G., and Viraraghavan, T. (2000) Effect of pretreatment on the biosorption of heavy metals on Mucor rouxii Water S.A 26 (1), 119-123
Amini, M., and Younesi, H. (2009) Biosorption of Cd(II), Ni(II) and Pb(II) from aqueous solution by dried biomass of Aspergillus niger: Application of response surface methodology to the optimization of process parameters CLEAN – Soil, Air, Water 37 (10), 776-786
Baysal, Z., Cinar, E., Bulut, Y., Alkan, H., and Dogru, M. (2009) Equilibrium and thermodynamic studies on biosorption of Pb(II) onto Candida albicans biomass J. of Hazardous Materials 161 (1), 62-67
Chen, L., and Gao, X. (2009) Thermodynamic study of Th(IV) sorption on attapulgite Applied Radiation and Isotopes 67 (1), 1-6
Sari, A., Mendil, D., Tuzen, M., and Soylak, M. (2008) Biosorption of Cd(II) and Cr(III) from aqueous solution by moss (Hylocomium splendens) biomass: Equilibrium, kinetic and thermodynamic studies Chemical Engineering 144, 1-9
Sari., A., and Tuzen, M., (2009) Kinetic and equilibrium studies of biosorption of Pb(II) and Cd(II) from aqueous solution by macrofungus (Amanita rubescens) biomass J. of Hazardous Materials 164 (2-3), 1004-1011
Liu, Y.-g., Fan, T., Zeng, G.-m., Li, X., Tong, Q., Ye, F., Zhou, M., Xu, W.-h., and Huang, Y.-e. (2006) Removal of Cadmium and Zinc ions from aqueous solution by living Aspergillus niger Transactions of Nonferrous Metals Society of China 16 (3), 681-686
Yan, G., and Viraraghavan, T. (2003) Heavy-metal removal from aqueous solution by fungus Mucor rouxii Water Research 37 (18), 4486-4496
Sahin, Y., and Oztürk, A. (2005) Biosorption of chromium(VI) ions from aqueous solution by the bacterium Bacillus thuringiensis Process Biochemistry 40 (5), 1895-1901