بررسی میزان جذب نیترات از محلول های آبی به وسیله جاذب نانوساختار پوسته تخم مرغ

نوع مقاله: مقاله اصلی

نویسندگان

1 استادیار، گروه مهندسی آب، دانشکده کشاورزی، دانشگاه رازی، کرمانشاه، ایران

2 کارشناس ارشد، گروه مهندسی آب، دانشکده کشاورزی، دانشگاه رازی، کرمانشاه، ایران

چکیده

آلودگی آب­های زیرزمینی و سطحی به نیترات در بسیاری از مناطق دنیا به صورت یک مشکل جدی مورد توجه است. نیترات می­تواند موجب اوتریفیکاسیون منابع آبی و مشکلات مربوط به آن شود. ایجاد عوارض نامطلوب بر روی اکوسیستم­های آبی از مهم­ترین اثرات غلظت­های بالای نیترات در محلول­های آبی است. این مطالعه با هدف بررسی امکان استفاده از پوسته تخم مرغ به عنوان یک جاذب کمهزینه در جذب نیترات از محلول­های آبی انجام شد. به این منظور اثر عواملی مانند pH، جرم جاذب، زمان تماس و غلظت اولیه نیترات مورد آزمایش قرار گرفت. از مدل­های ایزوترم (لانگمیر و فروندلیچ) و مدل­های سینتیک (لاگرگرن و هوو) برای بررسی فرآیند جذب استفاده شد. نتایج نشان داد که برای جاذب مورد مطالعه زمان تعادل پس از 30 دقیقه و حداکثر جذب نیترات در 5pH= به دست آمد. با افزایش جرم جاذب از 3/0 به 5/0 گرم راندمان جذب از 01/96 به 24/97 درصد افزایش یافت، اما با افزایش میزان جاذب از 5/0 بهg  6/1 تفاوت قابل ملاحظه­ای در بازدهی جذب مشاهده نشد. با افزایش غلظت نیترات محلول (mg/l120-5)، راندمان جذب از 42/99 به 38/87 درصد کاهش یافت. بر اساس نتایج بهدست آمده فرایند جذب از مدل هوو (سینتیک مرتبه دوم) تبعیت کرده و داده­های جذب با ایزوترم فروندلیچ مطابقت بیشتری داشت. در نهایت نتایج نشان داد که جاذب نانو ساختار پوسته تخم مرغ قابلیت بالایی در جذب یون­های نیترات از محلول­های آبی دارد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Investigation of Nitrate Removal from Aqueous Solutions by Egg Shell Nanostructure Adsorbent

نویسندگان [English]

  • Ali Bafkar 1
  • Neda Babeli 2
1 Assist. Professor, Department of Water Engineering, Faculty of Agriculture, Razi University, Kermanshah, Iran
2 M.Sc., Department of Water Engineering, Faculty of Agriculture, Razi University, Kermanshah, Iran
چکیده [English]

Pollution of groundwater and surface water into nitrate in many parts of the world is a serious problem. Nitrate can cause Eutrophication water sources and related problems. The creation of adverse health effects on aquatic ecosystems is one of the adverse effects of high concentrations of nitrate in aqueous solutions. The aim of this study was to investigate the possibility of using egg shell as a low-cost adsorbent in removal of nitrate from aqueous solutions. In this study, the effects of factors such as pH, adsorbent mass, contact time and initial concentration of nitrate were studied. Isotherm models (Langmuir and Freundlich) and kinetic models (Lagergren and Ho and colleagues) were used to examine the adsorption process. The results showed that for the adsorbent, the balance time after 30 minutes and maximum nitrate adsorption at pH=5 were obtained. By increasing the adsorbent mass from 0.3 to 0.5 gram, the removal efficiency increased from 96.01 to 97.24 percent, but with an increase in adsorbent content from 0.5 to 1.6 gram, there was a significant difference in the adsorption efficiency Failed. By increasing the concentration of dissolved nitrate (5.120 mg/l), the removal efficiency decreased from 99.42 to 87.38%. Based on the results, the adsorption process was followed by the model of Ho (Pseudo second order kinetics), and the adsorption data was more consistent with Freundlich isotherm. The results of this study showed that egg shell nanostructure adsorbent has high potential for removal of nitrate ions from aqueous solutions.

کلیدواژه‌ها [English]

  • Balance Time
  • Initial Concentration
  • Isotherm models
  • Kinetic Models
  • Optimum pH

Ahmadi M. and Avaz-Moghadam S (2013). Investigating the effect of natural absorbent egg shell on biodegradation of heavy metals. The 8th Biotechnology Conference of the Islamic Republic of Iran and the 4th National Biotechnology Conference. Tehran, Iran University of Medical Sciences. Tehran University [In Persian].

 

Afkhami A., Saber-Tehrani M. and Bagheri H. (2010). Simultaneous removal of heavy-metal ions in wastewater samples usingnano-alumina modified with 2, 4-dinitrophenylhydrazine. J. Hazard. Mat., 181, 836–844.

 

Aslan S. and Turkman A. (2006). Nitrate and pesticides removal from contaminated water using biodenitrification reactor. Process Biochem., 41(4), 882-886.

 

Baboli N. and Bafkar A. (2017). Determination of optimum pH for nitrate absorption of aqueous solution by plant nano-adsorbents. The second National Iranian Hydrology Conference. Shahrekord. Iran Hydrology Association [In Persian].

 

Bhatnagara A., Kumarb E. and Sillanpääc M. (2014). Nitrate removal from water by nanoalumina: characterization and sorption studies. Chem. Eng. J., 163(3), 317-323.

 

Bozorgpour F., Ramandi H. F., Jafari P., Samadi S., Yazd S. S. and Aliabadi M. (2016). Removal of nitrate and phosphate using chitosan/Al2O3/Fe3O4 composite nanofibrous adsorbent: Comparison with chitosan/Al2O3/Fe3O4 beads. Int. J. Bio. Macromol., 93, 557-565.

 

Demiral H. and Gunduzoglu G. (2010). Removal of nitrate from aqueous solutions by activated carbon prepared from sugar beet bagasse. Biores. Technol. J., 101, 1675-1680.

 

Divband S., Shirazi P., Divband L., Azadi S. and Tishehband P. (2013). Investigation of nonlinear kinetic models and isotherms of adsorption for nitrate by dioxide titanium nanoparticles. Water Sustain. Develop., 3, 41-35 [In Persian].

 

Enkari M. and Ebrahimi Aghmasjed E. (2019). Removal of nitrate ion from aqueous solution using octa decyl amine modified montmorillonite nanoclay. J. Environ. Water Eng., 4(4), 286– 298 [In Persian].

 

Escudero C., Poch J. and Villaescusa I. (2013). Modelling of breakthrough curves of single and binary mixtures of Cu(II), Cd(II), Ni(II) and Pb(II) sorption onto grape stalks waste. Chem. Eng. J., 217, 129– 138.

 

Farasati M. (2011). Effect of nano-structure of straw and cane sugar on nitrate removal from contaminated water. PhD in Irrigation and Drainage. Chamran Martyr of Ahwaz University [In Persian].

 

Farasati M., Jafarzadeh N., Boroomand Nasab S., Moazed H., Abedi Koupai J. and Seyedian M. (2012). Use of plant nano-adsorbents to remove nitrate from aqueous solutions. Iran. Water Resour. Res., 3, 28-38 [In Persian]

 

Farzi S. (2016). Investigating the effect of sugarcane nano-structure on the removal of cadmium from aqueous solutions by continuous and discontinuous systems. Master's thesis for irrigation and drainage. Razi University of Kermanshah [In Persian].

 

Fallahi F., Ayati B. and Ganji Doost H. (2011). Determination of nitrate removal by medicinal herbs at laboratory scale. Water and Sewage Develop. Res. Advise. Eng., 1, 65-57 [In Persian].

 

Gimbert F., Morin-Crini N., Renault F., Badot P. M. and Crini G. (2008). Adsorption isotherm models for dye removal by cationized starch-based material in a single component system: Error analysis. J. Hazard. Mater., 157(1), 34– 46.

 

Gong R., Ding Y., Li M., Yang C., Liu H. and un Y. (2005). Utilization of powdered peanut hull as biosorbent for removal of anionic dyes from aqueous solution. Dyes Pigments., 64, 187-192.

 

Guler U. A. and Sarioglu M. (2013). Single and binary biosorption of Cu(II), Ni(II) and methylene blue by raw and pretreated Spirogyra sp equilibrium and kinetic modeling. J. Environ. Chem. Eng., 1(3), 369-377.

 

Hashemi M., Naseri A. A. and Takdastan A. (2016). Evaluation of sugarcane bagasse absorbent efficiency in removal of nitrate from agricultural drainage. J. Irrig. Sci. Eng. Chamran Martyr of Ahwaz University., 40(3), 1-10 [In Persian].

 

Hekmatzadeh A. A., Karimi-Jashni A., Talebbeydokhti N. and Kløve B. (2013). Adsorption kinetics of nitrate ions on ion exchange resin. Desal., 326, 125– 134.

 

Katal R., Baei M. S., Rahmati H. T. and Esfandian H. (2012). Kinetic, isotherm and thermodynamic study of nitrate adsorption from aqueous solution using modified rice husk. J. Indust. Eng. Chem., 18(1), 295-302.

 

Li M., Feng C., Zhang Z., Chen R., Xue Q., Gao C. and Sugiura N. (2010). Optimization of process parameters for electrochemical nitrate removal using Box–Behnken design. Electrochim. Acta., 56(1), 265-270.‏

 

Li L., Liu F., Jing X., Ling P. and Li A. (2011). Displacement mechanism of binary competitive adsorption for aqueous divalent metal ions onto a novel IDA- chelating resin: Isotherm and kinetic modeling. Water Res., 45, 1177– 1188.

 

Malekian R., Abedi Koupai J., Eslamian S. S., Mousavi F. Abbaspour K. and Afyuni M. (2011). Ion-exchange process for ammonium removal and release using natural Iranian zeolite. Appl. Clay Sci., 51, 323–329.

 

Naseri S., Golestani far H., Heybati B., Asadi A. and Dargahi A. (2013). Evaluation of pumice efficiency modified in determination of nitrate from aqueous solutions: isotermic and atomic adsorption study. J. Res., 12 (1), 143-154 [In Persian].

 

Nemati Sani A., Sadeghi A., Dehghan A. A., Asadzadeh S. N. and Dolatabadi M. (2014). Removal of nitrate from aqueous solutions using Saccharomyces cerevisiae: isotherm and adsorption kinetics. J. North Khorasan Univ. Med. Sci., 6(2), 441-449 [In Persian].

 

Rasouli A. (2017). Investigation of remove sodium from aqua solutions and soil column using the nano adsorbents. Master's Dissertation for Irrigation and Drainage. Razi University of Kermanshah [In Persian].

 

Shahidi A., Jalil Nejad Falizi N. and Jalil Nejad Falizi. A. (2015). Evaluation of Luffy's natural adsorbent effect in the removal of bivalve cadmium from aqueous humor. J. Water Wastewater, 3, 61-51 [In Persian].

 

Sohn K., Kang S. W., Ahn S., Woo M. and Yang S. K. (2006). Fe (0) nanoparticles for nitrate reduction: stability, reactivity, and transformation. Environ. Sci. Technol., 40(17), 5514-5519.

 

WHO U. (2012). Progress on drinking water and sanitation: update. New York: UNICEF and World Health Organization., 1-57.

 

Yu B., Xu J., Liu J. H., Yang S. T., Luo J., Zhou Q. and Liu, Y. (2013). Adsorption behavior of copper ions on graphene oxide–chitosan aerogel. J. Environ. Chem. Eng., 1(4), 1044-1050.

 

Zawaideh L. L. and Zhang T. C. (1998). The Effects of pH and addition of an organic buffer(hepes) on nitrate transformation in Fe0-water systems. Water Sci.  Technol., 38(7), 107-115.

 

Zhang M., Gao B., Yao Y., Xue Y. and Inyang M. (2012). Synthesis of porous MgO-biochar nanocomposites for removal of phosphate and nitrate from aqueous solutions. Chem. Eng. J., 210, 26-32.‏