• صفحه اصلی
  • بررسی تاثیر اسید نیتریک با نرمالیته های مختلف بر کارایی اسکوریا در حذف رنگ مالاشیت از محیط های آبی: تعیین مدل، ایزوترم و سینتیک واکنش

اشتراک گذاری

آدرس مقاله


کد مقاله : 13255 بازدید : 52 صفحه: 45 - 62

10.22034/jest.2018.13255

نوع مقاله: پژوهشی

بررسی تاثیر اسید نیتریک با نرمالیته های مختلف بر کارایی اسکوریا در حذف رنگ مالاشیت از محیط های آبی: تعیین مدل، ایزوترم و سینتیک واکنش

محورهای موضوعی : مدیریت محیط زیست

کیومرث شرفی 1 (دانشجوی دکترای تخصصی مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی کرمانشاه، کرمانشاه، ایران)
عبداله درگاهی 2 (دانشجوی دکترای تخصصی مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی اردبیل، اردبیل، ایران)
ناهید عزیزی 3 (دانشجوی کارشناسی ارشد، کمیته تحقیقات دانشجویی، دانشگاه علوم پزشکی کرمانشاه، کرمانشاه، ایران)
ژیلا امینی 4 (دانشجوی کارشناسی ارشد، کمیته تحقیقات دانشجویی، دانشگاه علوم پزشکی کرمانشاه، کرمانشاه، ایران)
مهدی غایب زاده 5 (دانشجوی دکترای تخصصی مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی تبریز، تبریز، ایران)
زهرا رضایی 6 (دانشجوی کارشناسی ارشد، کمیته تحقیقات دانشجویی، دانشگاه علوم پزشکی کرمانشاه، کرمانشاه، ایران)
مسعود مرادی 7 (دکترای تخصصی مهندسی بهداشت محیط، مرکز تحقیقات عوامل محیطی مؤثر بر سلامت دانشگاه علوم پزشکی کرمانشاه، کرمانشاه، ایران*(مسوول مکاتبات))

تاریخ دریافت : 1394/02/01 تاریخ پذیرش : 1394/08/26 تاریخ انتشار : 1397/07/01

کلید واژه: اسید نیتریک, اسکوریا, مالاشیت, مدل, ایزوترم, سینتیک واکنش,

چکیده مقاله :

زمینه و هدف: رنگ مالاشیت به دلیل ویژگی های ساختاری قابلیت تجزیه بسیار کمی داشته و در محیط های آبی به سختی حذف می شود. با توجه به تاثیر اسید نیتریک بر ویژگی های فیزیکی و شیمیایی اسکوریا، هدف از این مطالعه بررسی کارایی فرم های مختلف اصلاح شده اسکوریا با اسید نیتریک 1، 6 و 12 نرمال در حذف رنگ مالاشیت از محیط های آبی می باشد. روش بررسی: فرایند جذب در شرایط آزمایشگاهی در pH، دوز جاذب، زمان های تماس مختلف و غلظت ثابت رنگ انجام شد. سپس غلظت باقیمانده در محلول رنگ از طریق جذب بوسیله دستگاه اسپکتروفتومتر (Cary 50 ساخت کمپانی (Perkin Elmerدر طول موج nm 665 اندازه گیری شد. جهت تعیین حجم نمونه نیز از برنامه نرم افزاری DOE استفاده گردید. همچنین به منظور درک چگونگی جذب، داده های بدست آمده با ایزوترم های جذب لانگمیر، فروندلیچ و سینتیک های واکنش شبه درجه اول و دوم برازش داده شدند.. یافته ها: نتایج نشان داد که با افزایش نرمالیته اسید، pH، مقدار جاذب و زمان تماس، کارایی جاذب در حدف رنگ افزایش می یابد، بطوری که بیشترین راندمان حذف (100٪) برای جاذب های اصلاح شده با اسید نیتریک 1، 6 و 12 نرمال در 11 = pH ، مقدار جاذب 4/1 گرم در لیتر و زمان 75 دقیقه به دست آمد. همچنین جذب رنگ از هر دو ایزوترم لانگمیر و فروندلیچ و سینتیک شبه درجه دوم تبعیت مناسبی داشت. بحث و نتیجه گیری: با توجه به نتایج می توان گفت که جذب رنگ هم به صورت چند لایه ای و تک لایه ای صورت می گیرد و اصلاح اسکوریا با اسید نیتریک به دلیل تغییرات وسیع شیمیایی(بویژه نسبت سیلیکا به آلومینا) در ساختار جاذب موجب افزایش کارایی آن نسبت به اسکوریا طبیعی می شود.

چکیده انگلیسی:

Abstract Background and Objective: Malachite, due to its features and low degradability, can be removed from aquatic environments with difficulty. Given the Nitric acid effect on the physical and chemical characteristics of scoria, this study was to evaluate the effect of sulfuric acid normality (1, 6 and 12) on the efficiency of scoria in Malachite removal from aquatic environments and to determine model, isotherms and reaction kinetics. Method: Adsorption processes were carried out in vitro at different pH values, adsorbent dosages, contact times and constant concentrations of the dye. Residual concentrations of dye was measured as 665 nm by a spectrophotometer (Cary 50 Perkin Elmer Co). In order to understand the adsorption process, the obtained data were fitted by the Langmuir, Freundlich isotherms, and pseudo-first and second-order kinetics. Findings: The results showed that the dye removal eas increased with the increase of acid normality, pH, adsorbent dosage and contact time. The highest efficiency (100%) was obtained for the adsorbent modified with sulfuric acid 6 and 12 normalities in pH =11, adsorbent dose of 1.4 g/L and contact time of 75 minutes. Adsorption data proper followed both the Langmuir isotherm, Freundlich adsorption and pseudo-second-order kinetic. Discussion and Conclusion: According to the results, it can be concluded that Malachite adsorption by scoria occurs in both multi-and mono-layerd forms and scoria treatment with Nitric acid, due to wide chemical changes (especially silica/alumina ratio) of adsorbent structure, increases the efficiency as compared to natural scoria.

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  1. Andre B, Santos D, Francisco J, Jules B, Lier V. Review paper on current technologies for decolourisation of textile wastewater: Perspectivs for anaerobic biotechnology. Bioresour. Technol. 2007; 98:2369-2385.
    2.
  2. Shokoohi R, Dargahi A, Amiri R, Ghavami Z. Evaluation of US/S2O8-2 compilative process performance in the removal of Erythrosine B dye from aqueous solution. Journal of Advances in Environmental Health Research. 2018;1;6(1):1-8.
    3.
  3. Banat F, Al-Ahmad R, Bni –Khalid F. Bench-scale and packed bed sorption of methylene blue using treated olive pomace and. Charcoal Bioresour Technol.2007;98:3017-3025
    4.
  4. Pirsaheb M, Zinatizadeh AA, Dargahi A.­ Performance Evaluation of Coagulation Process in Removal of Low Turbidity and Color from Water Using Different Inorganic Coagulants. Journal of water and wastewater. 2012;23(1): 111-118. (In Persian)
    5.
  5. Gupta VK, Mittal A, Krishnah L, Gajbe V.Adsorption kinitics and column operations for the removal and recovery of malachite green from wastewater using bottom ash. Sep.Purif Technology 2004; 87-96.
    6.
  6. Zhang J, Li Y, Zhang C, Jing Y. Adsorption of malachite green from aqueous solution onto carbon prepared from Arundo donax root. Journal of Hazardous Materials 2008; 150: 774-782.
    7.
  7. Almasi A, Amirian F, Mohammadi M, Yari A R, Dargahi A, Ahmadidoust G. Evaluation Low Cost Adsorbent of Walnut Bark Granule for Methylene Blue Dye Removal from Aqueous Environments. Arch Hyg Sci. 2018; 7 (2) :112-117.
    8.
  8. Sharma YCU. Removal of Malachite Green from Aqueous Solutions by Adsorption on to Timber Waste. International Journal of Environmental Engineering and Management 2013; 4(6): 631-638. http://www.ripublication.com/ ijeem.htm
    9.
  9. Akbal F, Akdemir N, Onar AN. FT-IR spectroscopic detection of pesticide after sorption on to modified pumice. Talanta 2000; 53:131-135.
    10.
  10. Wesley LD. Determination of specific gravity and void ratio of pumice matrials. Geotech Test J 2001; 24:418-422.
    11.
  11. Kitis M, Kaplan SS, Karakaya E, Yigit NO, Civelekoglu G. Adsorption of natural organic Matter (NOM) from waters by iron coted pumice. Chemospher 2007; 66:130-138.
    12.
  12. Geitgey RP. pumice and volcanic cider In: carr ,D.D.(ED),Industrial Minerals and Rocks.,Society for Mining, Metallurgy,and  Exploration . littleeton Co USA PP 1994;803-813.
    13.
  13. Bassari A, Akyuz T, Kurtcebe T. The removal of Th, Cs and Sr ions from solution using granulated pumice stone. J Inclusion phenommol 1996; 26:83-88.
    14.
  14. Njau KN, Minja RJA, Katima J HY. Pumice soil:Apotential wetland substrate for treatment of domestic wastewater. Water Sci Technol 2003; 48:85-92.
    15.
  15. Lale M, Temocim Z, Bag N. Sorption behavior of copper (Ц), zinc (Ц) and nickel (Ц) on formaldehyde cross-linked Saccharomyces cerevisias immobilized on pumice stone. Fresenius Environ Bull 2001; 10:736-740.
    16.
  16. Esmaili A, Nasseri S, Mahvi AH. Adsorption of divalent copper and nickel from aqueous solutions by a natural mineral cartridge (volcanic ash). Journal of Hormozgan University of Medical Sciences 2004:8(1):33-39. (In Persian)
    17.
  17. Wohanka W, Lendtke H, luebke M. optimization of slow filtration as ameans of disinfecting nutrient solution. Acta HORTIC 1999; 481:539-543.
    18.
  18. Farizoglu B, Nuhoglu A, Yildis E, Keskinler B.The performance of pumice as filter bed matrial under rapid filtration condition filter. 2003; 40:41-46.
    19.
  19. Rachel A, Rao KVS, Subrahmanyam M, Boule P. Immobilization of Tio2 on pumice stone for the photocatalyti degradation of dyes and dye industry pollutants. Appl CATAL b Environ 2003; 46:77-85.
    20.
  20. Rachel A, Lavedrine B, Subrahmanyam Boule MP.Use of porous lavas as supports of photocatalysts.catal commun 2002; 3:165-171.
    21.
  21. Eze kA, Nwadiogbu JO, Nwankwere ET, et al. Effect of Acid Treatments on the Physicochemical Properties of Kaolin Clay. Archives of Applied Science Research 2012; 4 (2):792-794.
    22.
  22. Huang CC, Li HS, Chen CH. Effect of surface acidic oxides of activated carbon on adsorption of ammonia. Journal of Hazardous Materials 2008; 159:523–527.
    23.
  23. Anbia M, Ghaffari A. Removal of Malachite Green from Dye Wastewater Using Mesoporous Carbon Adsorption. Journal of the Iranian chemical society 2011;8: 567 – 576.
    24.
  24. Ferial A. Adsorption of basic dyes from aqueous solution onto pumice powder. Journal of Colloid Interface Science 2005; 286:455-458
    25.
  25. Jimenez MMD, Gonzalez MPE, Cid AAP. Adsorption interaction between natural adsorbents and textile dyes in aqueous solution, Colloids Surf 2005; 254:107–114.
    26.
  26. Samarghandi MR, Noorisepeher M, Zarabi M, SHahrokhi E, Amraie F. The study of effecincy and mechanism of acid dye black removal using sorbent mineral pumice. Journal of Health and Environment 2009; 3(4):399-410 (In Persian)
    27.
  27. Foo KY, Hameed BH. Insights into the modeling of adsorption isotherm systems. Chemical Engineering Journal 2010; 156:2–10.
    28.
  28. Kitis M, Kaplan S S, Karakaya E, Yigit N O and Civelekoglu G. Adsorption of natural organic Matter (NOM) from waters by iron coted pumice. chemospher66, 2007: 130-138.
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  30. Ho YS, McKay G. Pseudo-second order model for sorption processes, Process. Biochem.  1999; 34: 451–465.
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  31. Eze kA, Nwadiogbu JO, Nwankwere ET, et al. Effect of Acid Treatments on the Physicochemical Properties of Kaolin Clay. Archives of Applied Science Research 2012; 4 (2):792-794.
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  32. Samarghandi MR, Zarrabi M, Noori Sepehr M, Amrane A, Safari GhH, Bashiri S. Application of acidic treated pumice as an adsorbent for the removal of Azo dye from aqueous solutions: kinetic, equilibrium and thermodynamic studies. Iranian Journal of Environmental Health Sciences Engineering 2012; 9(1) 33-44. (In Persian)
    33.
  33. Flessner U, Jones DJ, Rozière J, Zajac J. A study of the surface acidity of acid-treated montmorillonite clay catalysts. Journal of Molecular Catalysis A: Chemical 2001; 168:247–256.
    34.
  34. Ajemba RO. Alteration of Bentonite from Ughelli by Nitric Acid Activation: Kinetics and Physicochemical Properties. Indian Journal of Science and Technology 2013; 6(2):102-109.
    35.
  35. His HC, Rood MJ, Rostam-Abadi M, Chang YM. Effects of Sulfur, Nitric Acid, and Thermal Treatments on the Properties and Mercury Adsorption of Activated Carbons from Bituminous Coals. Aerosol and Air Quality Research 2013; 13: 730–738.
    36.
  36. Ackacha MA, drmoon M. Adsorption of Malachite Green Dye onto Novel Adsorbent: Tamarix Aphylla Leaves. International Conference on Transport, Environment and Civil Engineering (ICTECE'2012) August 25-26, 2012:141-145.
    37.
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