حذف نیترات از محلول‌هاى آبى با استفاده از میکرو و نانو ساختار برگ درخت راش

نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشگاه علوم کشاورزی و منابع طبیعی ساری

2 گروه مهندسی آب، دانشکده مهندسی زراعی، دانشگاه علوم کشاورزی و منابع طبیعی ساری

3 گروه شیمی/ دانشگاه گلستان

چکیده

نیترات یکی از آلاینده‌های عمده‌ای است که به‌طور گسترده در منابع آبی بسیاری از کشورها وجود دارد که منجر به بروز مشکلات زیست محیطی می‌شود. در این پژوهش با استفاده از سیستم ناپیوسته، حذف نیترات از محلول‌های آبی توسط میکرو و نانو ذرات برگ درخت راش مورد بررسی قرار گرفت. پس از تهیه و اصلاح جاذب‌ها، تاثیر اسیدیته محلول، زمان تماس و مقدار جاذب بر جذب نیترات بررسی شد. به‌منظور مدل‌سازی فرایند جذب از مدل‌های سینتیک و ایزوترم جذب استفاده شد. نتایج نشان داد که اسیدیته و مقدار بهینه جاذب برای حذف نیترات توسط میکرو و نانوجاذب برگ راش به‌ترتیب 3 و 10 گرم در لیتر می‌باشد. زمان تعادل برای میکروجاذب برگ راش 120 دقیقه و برای نانوجاذب برگ راش 90 دقیقه به‌دست آمد. از بین مدل‌های سینتیک، مدل سینتیک هو و همکاران برای میکروجاذب و مدل سینتیک لاگرگرن برای نانوجاذب بهترین برازش را داشته است. مقایسه مدل لانگمویر نشان داد که بیشینه ظرفیت جذب برای نانوجاذب برگ راش (69/16 میلی‌گرم بر گرم) بیشتر از میکروجاذب برگ راش (68/10 میلی‌گرم بر گرم) است. یافته‌ها نشان داد که نانو ذرات برگ راش توانایی بیشتری در حذف نیترات از محلول‌های آبی دارد.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Nitrate Removal from Aqueous Solutions Using Micro and Nano Particles of Beech Leaves

نویسندگان [English]

  • Tayebe dehghan 1
  • Mohammad Ali Gholami Sefidkouhi 1
  • Mojtab Khoshravesh 2
  • narges samadani 3
1 sari university
2 Dept. of Water Eng., Faculty of Agricultural Eng., Sari Agricultural Sciences and Natural Resources University
3 Department of chemist/Golestan University
چکیده [English]

Nitrate is a major contaminant that is extensively found in water resources in many countries, leading to environmental problems. In this study, a batch system was used to study the removal of nitrate from aqueous solutions by micro and nanoparticles of beech leaves. After the preparation and modification of adsorbents, the effect of soluble pH, contact time, and dosage of adsorbent on nitrate adsorption were investigated. Kinetic and isotherm adsorption models were used to study the adsorption process. The results showed that the optimum pH and adsorbent dosage for nitrate removal by micro and nanoadsorbent of beech leaves were 3 and 10 g/L, respectively. Equilibrium time for micro and nanoadsorbent beech leaves was obtained 120 and 90 minutes, respectively. Among the kinetic models, Ho ̓s pseudo-second-order for the micro adsorbent and the Lagergren ̓s pseudo-first-order kinetic model for the nanoadsorbent had the best fit to the experimental data. According to the Langmuir model, the maximum adsorption capacity for nanoadsorbent beech leaves (16.69 mg/l) was higher than the micro adsorbent beech leaves (10.68 mg/l). The results showed that the nanoadsorbent of beech leaves are more capable for nitrate removal from aqueous solutions than the microadsorbrnt.

کلیدواژه‌ها [English]

  • Batch experiment
  • Isotherm adsorption
  • Kinetic adsorption
  • Leaf
  • Nano adsorbent

مراجع

Abou Shady, A., Peng, C., Bi, J., Xu, H. and Juan Almeria, O. (2012). Recovery of Pb (II) and removal of NO3 from aqueous solutions using integrated electrodialysis, elec-trolysis, and adsorption process. Desalination, 286, 304– 315.
Bafkar, A. and Baboli, N. (2019). Investigation of the efficiency of nitrate removal from aqueous solution using oak leaf nanostructure adsorbent. Journal of Water and Soil Conservation, 25(5): 233-247.
Bhatnagar, A., Kumar, E. and Sillanpaa, M. (2010). Nitrate removal from water by nano-alumina: Characterization and sorption studies. Chemical Engineering Journal, 163, 317– 323.
Divband Hafshejani, L., Hooshmand, A., Naseri, A.A., Soltani Mohammadi, A., Abbasi, F. and Bhatnagar, A. (2016). Removal of nitrate from aqueous solution by modified sugarcane bagasse biochar. Ecological Engineering, 95, 101–111.
Fan, C. and Zhang, Y. (2018). Adsorption isotherms, kinetics and thermodynamics of nitrate and phosphate in binary systems on a novel adsorbent derived from corn stalks. Journal of Geochemical Exploration, 188, 95–100.
Farasati, M., Seyedian, M., Boroomandnasab, S.,. Jaafarzadeh, N., Moazed, H. and Ghamarnia, H. (2013). Batch and column studies on the evaluation of micrometer and nanometer Phragmites australis for nitrate removal. Desalination and Water Treatment, 51, 5863–5872
Fazlzadeh, M., Adhami, SH., Vosoughi, M., Khosravi, R. and Sadigh, A. (2017). Nitrate ion adsorption from aqueous solution by a novel local green montmorillonite adsorben. Journal of Health, 8(3): 298-311. (in Farsi)
Ganesan, P., Kamaraj, R. and Vasudevan, S. (2013). Application of isotherm, kinetic and thermodynamic models for the adsorption of nitrate ions on grapheme from aqueous solution. Journal of the Taiwan Institute of Chemical Engineers, 44, 808–814.
Gao, S., Yang, G., Li, Z., Jia, X. and Chen, Y. (2012). Bioinspired synthesis of hierarchically micro/nanostructured CuI tetrahedron and its potential application as adsorbent for Cd (II) with high removal capacity. Journal of Hazardous Materials, 211– 212, 55– 61.
Gupta, V. K., Jain, C. K., Ali, I., Sharma, M. and Saini, V. K. (2003). Removal of cadmium and nickel from wastewater using bagasse fly ash-a sugar industry waste. Journal of Water Research, 37 (16), 4038-404.
Hamoudi, S., Saad, R. and Belkacemi, K. (2007). Adsorptive removal of phosphate and nitrate anions from aqueous solutions using ammonium-functionalized mesoporous silica. Journal of Industrial Engineering Chemistry Research, 46 (25), 8806–8812.
Hassanpour, M,. Khezri, M. and Dehghanifard, E. (2015). Evaluation of nano-magnet chitosan performance in nitrate removal from aqueous solutions. Journal of environmental health engineering, 2 (4), 270-282 (in Farsi)
Kaewprasit, C., Hequet, E., Abidi, N. and Gourlot, J.P. (1998). Application of methylene blue adsorption to cotton fiber specific surface area measurement: part I. Methodology. J. Cotton Sci. 2, 164–173
Malakootian, M., Yaghmaian, K. and Tahergorabi, M. (2011). The Efficiency of Nitrate Removal in Drinking Water Using Iron Nano-Particle: Determination of Optimum Conditions. Journal of toloo-e-behdasht, 10(2), 35-44 (in Farsi)
Mazarji, M., Aminzadeh, B., Baghdadi, M. and Bhatnagar, A. (2017). Removal of nitrate from aqueous solution using modified granular activated carbon. Journal of Molecular Liquids, 233, 139-148.
Olgun, A., Atar, N. and Wang, S. (2013). Batch and column studies of phosphate and nitrate adsorption on waste solids containing boron impurity. Journal of Chemistry Engineering, 222, 108–119.
Rahman, N. and Fazeel Khan, M. (2016). Nitrate removal using poly-o-toluidine zirconium (IV) ethylenediamine as adsorbent: Batch and fixed-bed column adsorption modeling. Journal of Water Process Engineering, 9,254–266.
Rahmani, A., Zavvar Mousavi, H. and Fazli, M. (2010). Effect of nanostructure alumina on adsorption of heavy metals. Desalination, 253, 94–100.
Rajeswari. A., Amalraj. A. and Pius.A. (2016). Adsorption studies for the removal of nitrate using chitosan/PEG and chitosan/PVA polymer composites. Journal of Water Process Engineering 9;123–134.
Rashidi Nodeh, H., Sereshti, H., Zamiri Afsharian, E. and Nouri, N. (2017). Enhanced removal of phosphate and nitrate ions from aqueous media using nanosized lanthanum hydrous doped on magnetic graphene nanocomposite. Journal of Environmental Management, 197, 265-274.
Schoeman, J.J. and Steyn, A. (2003). Nitrate removal with reverse osmosis in a rural area in South Africa. Desalination, 155, 15– 26.
Soares, M.I.M. (2000). Biological denitrification of ground water. Water, Air, & Soil Pollution, 123, 183– 193.
Teimouri, A., Ghanavati nasab, Sh., Vahdatpoor. N., Habibollahi. S., Salavati., H. and NajafiChermahin, A. (2016). Chitosan/Zeolite Y/Nano ZrO2 nanocomposite as an adsorbent for the removal of nitrate from the aqueous solution. International Journal of Biological Macromolecules.
Viglašová, E., Galamboš, M,. Danková, Z., Krivosudsky, L., Lengauer, Ch., Hood-Nowotny´, R., Soja, G., Rompel, A., Matík, M., and Briancˇin, J. (2018). Production, characterization and adsorption studies of bamboo-based biochar/montmorillonite composite for nitrate removal. Waste Management, 79: 385–394
Wu, Y., Wang, Y., Wang, J., Xu, S., Yu, L., Philippe, C. and Wintgens, T. (2016). Nitrate removal from water by new polymeric adsorbent modified with amino and quaternary ammonium groups: Batch and column adsorption study. Journal of the Taiwan Institute of Chemical Engineers, 66, 191–199.
Xing, X., Gao, B., Zhong, Q. Q., Yue, B. and Zhong, Q. (2010). Preparation of agricultural by product based anion exchanger and its utilization for nitrate and phosphate removal. Bioresource technology, 101, 8558-8564.
Xue, L., Gao, B., Wan, Y., Fang, J., Wang, S., Li, Y., Muñoz-Carpena, R. and Yang, L. (2016). High efficiency and selectivity of MgFe-LDH modified wheat-straw biochar in the removal of nitrate from aqueous solutions. Journal of the Taiwan Institute of Chemical Engineers, 63, 312–317.
Yin, Q., Ren, H., Wang, R., and Zhao, Zh. (2018). Evaluation of nitrate and phosphate adsorption on Al-modified biochar: Influence of Al content. Science of the Total Environment, 631–632, 895–903.
Zhan, Y., Lin J. and Zhu, Z. (2011). Removal of nitrate from aqueous solution using cetylpyridinium bromide (CPB) modified zeolite as adsorbent. Journal of Hazardous Materials, 186, 1972–1978.
تحقیقات آب و خاک ایران
دوره 51، شماره 2
اردیبهشت 1399
صفحه 353-362

فایل ها

هم رسانی

ارجاع به این مقاله

آمار