تحلیل کاربردی نانوذره ی گرافن درراکتور دیسک چرخان جهت بررسی میزان کاهش آلاینده هادرپساب های صنعتی

نوع مقاله : پژوهشی

نویسندگان

1 کارمند فنی شرکت خطوط لوله و مخابرات نفت منطقه شمال

2 کارشناسی ارشد مهندسی شیمی، دانشگاه محیط زیست کرج، البرز، ایران

3 استادیار، دانشگاه محیط زیست کرج، البرز، ایران

چکیده

در این ­پژوهش سعی ‌‌‌‌‌شده ­است ­­­­­­­با استفاده از ­­راکتور حاوی­­­ ­صفحات­ پوشیده­ شده ­با ­نانو­ذرات­ گرافن و قرار دادن آن بعد از واحد تصفیه بیولوژیکی­ بی­هوازی تصفیه ­خانه رنگرزی بار آلودگی برای مراحل بعدی تصفیه با جذب مواد آروماتیک حاصل ازمرحله تخریب ­بی­هوازی ­بیولوژیکی­کاهش­ یابد. نتایج­ حاصل­ از آنالیز میکروسکوپ الکترونی­ رویشی انتشار میدانی (FE-SEM) نشان­داد که ­لایه ­نشانی­گرافن بر روی صفحات­­ راکتور به ­صورت چندلایه بوده است. سپس تاثیر سه پارامتر غلظت­ ورودی پساب (mg/L 150، 100، 70 COD:­)،  pH (5، 7 و 9) و دما ( ˚30،20 و40) روی ­میزان حذف ترکیبات­ آروماتیک، COD ­وکدورت پساب بررسی­ شد. نتایج حاصل ­نشان ­دادند که غلظت بالای COD جذب سریع­تر و بهتری­ توسط ­گرافن نسبت به غلظت­های پایین ­آن داشت. از بین ­سه­ دمای­ مورد آزمایش، در دمای بالا میزان جذب بیشتری ­مشاهده ­شد. همچنین­ با افزایش pH­ از 5 به 9، میزان­جذب­ افزایش ­پیداکرد. این­ سیستم ­در جذب ­مواد آروماتیک ­و کاهش COD عملکرد نسبتا خوبی ­از خود نشان ­داد. ­­شرایط بهینه عملکرد راکتور غلظت mg/L 150COD:،pH  برابر 9 و دمای ˚C40 تعیین شد.

کلیدواژه‌ها

عنوان مقاله [English]

Applied Analysis of Graphene Nanoparticle in Rotating Disk Reactor to Investigate the Reduction of Pollutants in Industrial Wastewater

نویسندگان [English]

  • maryam mirneamati 1
  • Keivan sohrabpor 2
  • somayeh mohammadi 3
1 Oil Pipelines and Telecommunications Company, Sari, Iran
2 MSC in Chemical Engineering, Karaj Environment University, Alborz, Iran
3 Professor Assistant, Faculty of Environment, Karaj Environment University, Alborz, Iran
چکیده [English]

In this research, it was tried to use a reactor containing plates covered with Graphene nanoparticles and placing it after the anaerobic biological treatment unit of dyeing treatment plant will reduce the pollution load for the next stages of treatment by absorbing aromatic substances resulting from the anaerobic biological destruction stage. The results of the field emission electron microscope (FE-SEM) analysis showed that the Graphene layers on the reactor plates were multi-layered. Then the effect of three parameters of effluent concentration (COD: 70, 100, 150 mg/L), pH (5, 7, 9) and temperature (20, 30 and 40 ˚C) on the amount of removal of aromatic compounds, COD and effluent turbidity were investigated. The results showed that high concentration of COD had faster and better absorption by Graphene than its low concentration. Among the three tested temperatures, a higher absorption rate was observed at the higher temperature. Also, with the increase of pH from 5 to 9, the amount of absorption increased. This system showed relatively good performance in absorbing aromatic substances and reducing COD. Optimum conditions of reactor performance were determined as COD: 150 mg/L, pH = 9 and temperature 40 ˚C.

کلیدواژه‌ها [English]

  • Dyeing Wastewater Treatment
  • Graphene
  • Rotating Biological Contactor
  • Aromatic Compounds
  • Surface Adsorption

مراجع

[1] Tantemsapya, N., Wirojanagud, W., and Sakolchai, S., “Removal of color, COD and lignin of pulp and paper wastewater using wood ash”, Songklanakarin J. Sci. Technol., Vol. 26 (Suppl. 1), pp. 1-5, 2004.
[2] Inbook, Rashed, M. N., 2013, Organic pollutants - monitoring, risk and treatment, licensee InTech., Chap. 7, pp. 167-172.
[3] Muhammad, A., Shafeeq, A., Butt, M. A., Rizvi, Z. H., Chughtai, M. A., and Rehman, S., “Decolorization and removal of COD  and Bod from raw and biotreated textile dye bath effluent through advanced oxidation processes (Aops)”, Brazilian Journal of Chemical Engineering, Vol. 25, No. 03, pp. 453-459, 2008.
[4] Ozdemira, O., Armagan, A., Turan, M., and C¸elik, M. S., “Comparison of the adsorption characteristics of azo-reactive dyes on mezoporous minerals”, Dyes and Pigments, Vol. 62, pp. 49-52, 2004.
[5] Kumar Gupta, V., Kumar, R., Nayak, A., Saleh, T. A., and Barakat, M. A., “Adsorptive removal of dyes from aqueous solution onto carbon nanotubes: A review”, Advances in Colloid and Interface Science, 193-194, pp. 24-32, 2017.
[6] Yang, X., Li, J., Wen, T., Ren, X., Huang, Y., and Wang, X., “Adsorption of naphthalene and its derivatives on magnetic graphene composites and the mechanism investigation”, Colloids and Surfaces A:  Physicochem.  Eng.  Aspects, Vol. 422, pp. 118-123, 2013.
[7] Pokhrel, D., and Viraraghavan, T., “Treatment of pulp and paper mill wastewater—a review”, Science of the Total Environment, Vol. 333, pp.  37-40, 2004.
[8] Muthuraman, G., and Palanivelu, K., “Selective extraction and separation of textile anionic dyes from aqueous solution by tetrabutyl ammonium bromide”, Dyes and Pigments, Vol. 64, pp. 251-255, 2005.
[9] Dastgheib, S. A., Karanfil, T., and Cheng, W., “Tailoring activated carbons for enhanced removal of natural organic matter from natural waters”, Carbon, Vol. 42, pp. 547-550, 2004.
[10] Ramesha, G. K., Vijaya Kumara, A., Muralidhara, H. B., and Sampath, S., “Graphene and graphene oxide as effective adsorbents toward anionic and cationic dyes”, Journal of Colloid and Interface Science, Vol. 361, pp. 270-275, 2011.
[11] Singh Raman, R. K., Chakraborty Banerjee, P., Lobo, D. E., Gullapalli, H., Sumandasa, M., Kumar, A., Choudhary, L., Tkacz, R., Ajayan, P. M., and Majumder, M., “Protecting copper from electrochemical degradation by graphene coating”, Carbon ,Vol. 5, pp. 4040-4044, 2012.
[12] Balandin, A. A., Ghosh, S., Bao, W., Calizo, I., Teweldebrhan, D., Miao, F., and Ning Lau, C., “Superior thermal conductivity of single-layer grapheme”, Nano Lett., Vol. 8, pp. 902-905, 2008.
[13] Guven Apul, O., Wang, Q., Zhou, Y. and Karanfil, T., “Adsorption of aromatic organic contaminants by graphene nanosheets: Comparison with carbon nanotubes and activated carbon”, Water Research, No. 47, pp. 1648-1654, 2016.
[14] دارابی، علی، انبیاء، منصور، 1384، "اصول طراحی مخازن همزن­دار (میکسرها)"، دانشگاه علم و صنعت ایران.
[15] Merlic, C. A. and Fam, B. C., “WebSpectrs: problem in NMR and IR spectrometry”, UCLA Department of Chemistry and Biochemistry, 2000.
[16] Pinheiro, H. M., Touraud, E., and Thomas, O., “Aromatic amines from azo dye reduction: status review with emphasis on direct UV spectrophotometric detection in textile industry wastewaters”, Dyes and Pigments, Vol. 61, pp. 121-135, 2004.
[17] Elsagh, A., Moradi, O., Fakhri, A., Najafi, F., Alizadeh, R. and Haddadi, V., “Evaluation of the potential cationic dye removal using adsorption by graphene and carbon nanotubes as adsorbents surfaces”,Arabian Journal of Chemistry, pp. 1-8, 2014.
[18] Wu, T., Cai, X., Tan, S., Li, H., Liu, J., and Yang, W., “Adsorption characteristics of acrylonitrile, p-toluenesulfonic acid, 1-naphthalenesulfonic acid and methyl blue on graphene in aqueous solutions”, Chemical Engineering Journal, Vol. 173, pp.144-149, 2011.
[19] Li, Y. H., Liu, T., Du, Q., Sun, J., Xia, Y., Wang, Z., Zhang, W., Wang, K., Zhu, H., and Wu, D., “Adsorption of cationic red X-GRL from aqueous solutions by graphene: equilibrium, kinetics and thermodynamics study", Chem. Biochem. Eng. Q., Vol. 25(4), pp. 483-490, 2011.
[20] جدید، علی، شهسواری، شاداب، 1399، "بررسی جذب سطحی فنل از پساب با استفاده از نانو جاذبگرافن"، دانشگاه صنعتی شریف، تصویر سلامت، ص.ص380-368.
[21] Kyzas GZ, Deliyanni EA, Matis KA, “Graphene oxide and its application as an adsorbent for wastewater treatment”, Journal of Chemical Technology & Biotechnology, vol. 89(2), pp. 196-205, 2014.

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