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نوع مقاله : مقالات پژوهشی

نویسنده

کارشناس بهداشت محیط شهرداری همدان، ایران

چکیده

زمینه و هدف : شیرابه زباله شهری به دلیل داشتن مواد آلی، مواد معدنی و فلزات سنگین بعنوان یکی از مشکلات محیط زیست بشمار می رود که نیاز به تصفیه دارد. جذب سطحی یکی از روش های مورد استفاده در جذب آلاینده ها توسط مواد جاذب می باشد. در این مطالعه به بررسی کارایی حذف فلز روی از شیرابه محل دفن زباله شهر همدان توسط جاذب پوست موز اصلاح شده توسط محلول اسیدی پرداخته شده است.

مواد و روش ها: در مطالعه توصیفی- تحلیلی حاضر اثر متغیرهای زمان تماس، مقدار جاذب، pH و غلظت بر کارایی حذف فلز روی از شیرابه انجام گرفته است. جهت بررسی چگونگی فعل و انفعال بین جاذب و جسم جذب شونده از مدل های جذب ایزوترم لانگمویر و فروندلیچ و بررسی سرعت فرایند جذب از سینتیک جذب شبه مرتبه اول و دوم استفاده شد.

یافته ها : بیشترین کارایی حذف فلز روی (92%) توسط جاذب پوست میوه موز اصلاح شده در pH بهینه 7، زمان تماس 70 دقیقه، مقدار جاذب g/l 6 و غلظت mg/l 1 رخ داد. حداکثر ظرفیت جذب جاذب نیز mg/g 34 تعیین گردید. نتایج نشان داد که رفتار فرایند موردنظر از مدل ایزوترمی جذب لانگمیر تبعیت کرده و سینتیک آن بر واکنش شبه مرتبه دوم منطبق می شود.

نتیجه گیری : استفاده از جاذب طبیعی پوست موز اصلاح شده با محلول اسید نیتریک توانایی بالایی در حذف فلز روی از شیرابه را دارد و می تواند به عنوان جایگزینی مناسب برای کاهش مشکلات ناشی از جاذب‌های متداول شیمیایی استفاده گردد.

کلیدواژه‌ها

عنوان مقاله [English]

Investigation of removal of Zinc Metal from leachate Using Modified Banana Skin adsorbent

نویسنده [English]

  • Maryam Bahiraei

Environmental Health Expert of Hamedan Municipality, Iran

چکیده [English]

Background and purpose: Urban waste leachate due to had organic matter, minerals and heavy metals as one of the environmental problems has require treatment. Surface absorption is one of the methods used in absorbing contaminants by absorbent materials. In this study, the efficiency of removal of zinc from leachate of landfill waste in Hamadan city by absorbent of banana skin modified by acidic solution has been investigated.

Materials and Methods: In study of descriptive-analytical, the effect of contact time, adsorbent amount, pH and concentration variables performed on the efficiency of Zn metal removal from leachate. In order to investigate the interaction between the adsorbent and the absorbed object were used the absorption models of Langmuir and Freundlich isotherm and aspect investigation the velocity of the adsorption process were used from the adsorption kinetics of first and second order pseudo-adsorption.

Results: The highest efficiency of zinc removal (92%) was caused by adsorbent of banana fruit skin modified in the optimum pH 7, the contact time 70 minutes, the adsorbent amount 6 g/l concentration 1 mg/l. The maximum absorbent absorption capacity was also determined 34 mg/g. The results showed that the behavior of the desired process followed Langmuir adsorption isotherm model and its kinetics is adapted to the second-order pseudo-reaction.

Conclusion: The use of natural adsorbent banana fruit skin modified by nitric acid solution has a high ability to remove zinc metal from leachate and can be used as an appropriate replacement for reducing the problems caused by common chemical adsorption.

کلیدواژه‌ها [English]

  • Waste Leachate
  • Zinc metal
  • Surface Absorption
  • Banana Skin
  • Hamedan
1-Ghadimi F. Javadi Sharif P. Impact of Arak landfill leachate on groundwater quality in terms of heavy metals in Amanabad Arak plain. Journal of Natural Environmental Hazards 2019; 9(26): 111-128 [In Persian].
2-Abedi Koupai J. Jamalian MA. Dorafshan MM.. Improving Isfahan landfill leachate quality by phytoremediation using Vetiver and Phragmites plants in green space irrigation. Journal of Water and Wastewater 2020; 31(3): 101-111. Doi: 10.22093/wwj.2019.186145.2867  [In Persian].
3-Bohdziewicz J. Kwarciak A. The application of hybrid system UASB reactor–RO in landfill leachate treatment. Desalination 2008; 222(1):128-34.
4-Wang Z. Zhang Z. Lin Y. Deng N. Tao T. Zhuo K. Landfill leachate treatment by a  coagulation photooxidation process. Journal of Hazardous Materials 2002; 95(1-2): 153-159.
5-Ward ML. Bitton G. Townsend T. Heavy metal binding capacity (HMBC) of municipal solid waste landfill leachates. Chemosphere 2005; 60(2):206-15.
6-Claudio DI. Roberto R. Antonio L. Combined biological and chemical degradation for treating a mature municipal landfill leachate. Biochemical Engineering Journal 2006; 31:118-24.
7-Christensen TH. Kjeldsen P. Bjerg,P L. Jensen DL. Christensen JB. Baun A. et al. Biogeochemistry of landfill leachate plumes. Appl Geochem 2001; 16(7):659-718.
8-Dorota K. Ewa K. The effect of landfill age on municipal leachate composition. Bioresource Technology 2008; 99:5981-85.
9-Gupta VK. Rastogi A. Biosorption of lead from aqueous solutions by green algae Spirogyra species: kinetics and equilibrium studies. J Hazard Mater 2008; 152(1):407-14.
10-Mico C. Recatal L. Peris M. Sanchez J. Assessing heavy metal sources in agricultural soils of an European Mediterranean area by multivariate analysis. Chemosphere 2006; 65(5):863-72.
11-Suna Erses A. Fazal MA. Onay TT. Craig WH. Determination of solid waste sorption capacity for selected heavy metals in landfills. J Hazard Mater 2005; 121(1-3):223-32.
12-Sprynskyy M. Solid–liquid–solid extraction of heavy metals (Cr, Cu, Cd, Ni and Pb) in aqueous systems of zeolite–sewage sludge. J Hazard Mater 2009; 161(2-3):1377-83.
13-Cincotti A. Lai N. Orrù R. Cao G. Sardinian natural clinoptilolites for heavy metals and ammonium removal: experimental and modeling. Chemical Engin 2001; 84(3):275-82.
14-Mohan S. Gandhimathi R. Removal of heavy metal ions from municipal solid waste leachate using coal fly ash as an adsorbent. J Hazard Mater 2009; 169(1-3):351-9.
15-Upendra K. Bandyopadhyay M. Sorption of cadmium from aqueous solution using pretreated rice husk. Bioresource Technology 2006; 97: 104-109.
16-Yu B. Zhang Y. Shukla A. Shukla S.S.. The Removal of Heavy metals from aqueous solutions by sawdust adsorption .removal of lead and comparison of its adsorption with copper, Hazardous materials 2001; 84(1): 83-94 .
17-Wan Ngah WS. Hanafiah MAKM. Removal of heavy metal ions from wastewater by chemically modified plant wastes as adsorbents: A review 2008; 99(10): 3935-3943.
18-Tarley CRT. Ferreira SLC. Arruda MAZ. Use of modified rice husks as a natural solid adsorbent of trace metals: characterization and development of an on-line preconcentration system for cadmium and lead determination by FAAS. Microchemical Journal 2004; 77: 163-175.
19-Tiemann KJ. Gamez G. Dokken K. Parsons JG. Gardea-Torresdey JL. Chemical modification and X-ray absorption studies for lead (II) binding by Medicago sativa biomass. Microchemical Journal 2002; 71: 287-293.
20-Li Q. Zhai J. Zhang W. Wang M. Zhou J. Kinetic studies of adsorption of Pb(II), Cr(III) and Cu(II) from aqueous solution by sawdust and modified peanut husk. Journal of Hazardous Material 2006; 141: 163-167.
21-Junior OK. Gurgel LVA. De Melo JCP. Botaro VR. Melo TMS. De Freitas Gil RP. Gil LF.. Adsorption of heavy metal ion from aqueous single metal solution by chemically modified sugarcane bagasse. Bioresource Technology 2007; 98:1291-1297.
22-Nabi GH. Fazelipishe H. Adsorption of heavy metals by sawdust. Journal of Environmental Studies 1998. 24:15-22 [In Persian].
23-Shahmohammadi Z. Moazed H. Jafarzadeh N. Haghighatjoo P. Removal of Cd2+ from dilute aqueous solutions by by rice husk. Water and Wastewater 2008; 67:27-33 [In Persian].
24-Zhang X. Yang L. Li Y. Li H. Wang W. Ye B. Impacts of lead/zinc mining and smelting on the environment and human health in China. Environ Monit Assess 2012; 184(4):2261-73.
25-Wongsasuluk P. Chotpantarat S. Siriwong W. Robson M. Heavy metal contamination and human health risk assessment in drinking water from shallow groundwater wells in an agricultural area in Ubon Ratchathani province, Thailand. Environ Geochem Health 2014; 36(1):169-82.
26-Shukla A. Zhang YH. Shukla SS. Dubey P. The role of sawdust in removal of unwanted materials from water, Hazardous materials 2002; 95(1-2): 137-152.
27-Mehrasbi MR. Farahmand Kia Z. Removal of heavy metals from a blue environment by surface absorption on the modified banana skin. Journal of Health and Environment 2008; 1(1): 57-66 [In Persian].
28-Barakat M. New trends in removing heavy metals from industrial wastewater. Arabian Chemistry 2016; 4 (4): 361-377.
29-Pirsahed M. Zinatizadeh A. Dargahi A. Performance evaluation of coagulation process in removal of low turbidity and color from water using different inorganic coagulants. Water and Wastewater 2018; 1(2), 111-118 [In Persian].
30-APHA. AWWA. WPCF. Standard methods for examination of water and wastewater, 21th Ed., Washington. D.C 2005.
31-Gimbert F. Morin N. Renault F. Crini G. Adsorption isotherm models for dye removal by cationized starch-based material in a single component system. J. Hazard. Mater 2018; 157(1): 34-46.
32-Saruchi A. Kumar V. Adsorption kinetics and isotherms for the removal of rhodamine B dye and Pb+2 ions from aqueous solutions by a hybrid ion-exchanger. Arabian Journal of Chemistry 2019; 12 : 316–329.
33-Zubair M. Jarrah N. Manzar MS. Al-Harthi M. Daud M. Mu’azu ND. Haladu SA. Adsorption of ferrochrome black T from the aqueous phase on MgAl-, CoAland NiFe- calcined layered double hydroxides: Kinetic, equilibrium and thermodynamic studies. J. Mol. Liq 2017; 230: 344–352.
34-Dalhat Mu’azu N. Bukhari A. Munef K. Effect of montmorillonite content in natural Saudi Arabian clay on its adsorptive performance for single aqueous uptake of Cu(II) and Ni(II). Journal of King Saud University Science 2020; 32: 412–422.
35-Rao RAK. Rehman F. Adsorption Studies on Fruits of Gular (Ficus glomerata): Removal of Cr(VI) from Synthetic Wastewater. J. Hazard. Mater 2010; 181: 405–412.
36-Dehghani MH. Mahvi AH. Rastkari N. Saeedi R. Nazmara SH. Iravani E. Adsorption of bisphenol A (BPA) from aqueous solutions by carbon nanotubes: kinetic and equilibrium studies. Desalin. Water Treat 2015; 54: 84–92 [In Persian].
37-Lagergren S. Zur theorie der sogenannten adsorption gel¨oster stoffe, K. Sven. Vetenskapsakad. Handl 1898; 24: 1–39.
38-Ho YS. McKay G. Pseudo-second order model for sorption processes, Process. Biochem 1999. 34: 451–465.
39-EPOI. Environmental Protection Organization of Iran. Terms and Environmental Standards. Tehran: Environmental Protection Organization Publication 1998; 268-96 [In Persian].
40-Zhang Y. William Franken Berger T. Factors affecting removal of selenate in agricultural drainage water utilizing rice straw, Sci. Total Environ 2003; 305: 207–216.
41-Taty VC. Costodes Fauduet H. Porte C. Delacroix A. Removal of Cd(II) and Pb(II) ions, from aqueous solutions, by adsorption onto sawdust of Pinus sylvestris. Journal of Hazardous Material 2003; 105:121-142.
42-Sud D. Mahajan G. Kaur MP. Agricultural waste material as potential adsorbent for sequestering heavy metal ions from aqueous solutions . Areview. Bioresource Technology 2008; 99: 6017-6027.
43-Parvizi Mosaed H. Sobhan Ardakani S. Hamidian AH. Removal of Zn(II) and Cr(VI) From Aqueous Solutions Using Rice Husk 2012; 65(3): 315-327 [In Persian].
44-Ekati N. Studying the Removal Process of Heavy Metals (Ni and Zn) from Aqueous Solution Using Orange Peel. J.Env. Sci. Tech 2016; 18(2): 275-282 [In Persian].
45-Faraji MS. Mohamadi Sani A. Alizadeh Golestani H. Elimination of lead using adsorption by pear peel. J.Env. Sci. Tech 2017; 19(4): 51-59 [In Persian].
46-Zarei S. Dehvari M. Jamshidi B. Sadani M. Investigation of Isotherm and Kinetic of Nickel Adsorption by Acorn Ashes from Aqueous Solutions. Journal of Rafsanjan University of Medical Sciences 2014. 13(10): 897-908 [In Persian].
47-Krishna RH. Swamy AVVS. Studies on the removal of Ni (II) from aqueous solutions using powder of mosambi fruit peelings as a low cost sorbent. Chem Sci J 2011; 31: 1-13.
48-Onundi YB. Mamun AA. Al Khatib MF. Ahmed YM. Adsorption of copper, nickel and lead ions from synthetic semiconductor industrial wastewater by palm shell activated carbon. Int J Environ Sci Tech 2010; 7: 751-8.
49-Montazeri N. Baher E. Berami Z. Ghorchi Beygi M. Kiwi's role in removing environmental pollutions and investigation its affecting factors. Journal of Natural Resources Science and Technology 2010; 5(1): 117-128 [In Persian].
50-Kok Seng L. Adsorption of Heavy Metals using Banana Peels in Wastewater Treatment. The Eurasia Proceedings of Science, Technology. Engineering & Mathematics (EPSTEM) 2018; 2: 312-317.
51-Malkoc E. Nuhoglu Y. Nickel(II) adsorption mechanism from aqueous solution by a new adsorbent waste acorn of quercus ithaburensis. Environ Prog Sustainable Energ 2010; 29: 297-306.
52-Gurgel LVA. Junior O.K. Gil RPF. Gil LF. Adsorption of Cu(II), Cd(II), and Pb(II) from aqueous single metal solution by cellulose and mercerized cellulose chemically modified with succinic anhydride. Bioresource Technology 2008; 99: 3077-3083.
53-Manisah Mohamed R. Hashim N. Abdullah,S. et al. Adsorption of Heavy Metals on Banana Peel Bioadsorbent. Journal of Physics: Conference Series 2020. 012014 doi:10.1088/1742-6596/1532/1/012014.