بررسی و ارزیابی عملکرد جاذب های طبیعی ساقه، برگ و ریشه زرشک در حذف کروم از پساب

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه علوم و مهندسی آب- دانشکده کشاورزی-دانشگاه بیرجند-بیرجند-ایران

2 گروه علوم و مهندسی آب- دانشکده کشاورزی- دانشگاه بیرجند- بیرجند- ایران

چکیده

فلزات سنگین درون محیط تجزیه ناپذیر بوده و می‌توانند برای بسیاری از گونه‌های جانوری خطرناک باشند. به همین دلیل، حذف یون فلزات سنگین از آب و فاضلاب به منظور سلامت عمومی و محیط زیست فرآیندی مهم محسوب می‌شود. از این‌رو ارائه یک روش مطمئن که ضمن رفع آلودگی‌های صنعتی، کم هزینه و سازگار با محیط زیست باشد بسیار ضروری است. این تحقیق با هدف بررسی حذف یون کروم شش ظرفیتی از پساب به وسیله جاذب‌های ریشه، ساقه و برگ زرشک صورت پذیرفت. میزان pH اولیه محلول، زمان واکنش، وزن جاذب و غلظت اولیه کروم از مهم‌ترین پارامترهای مورد بررسی بوده که در این تحقیق میزان تغییرات آن‌ها در هر جاذب مورد بررسی قرار گرفت. نتایج نشان داد که کارایی حذف کروم شش‌ظرفیتی با افزایش pH و غلظت اولیه کروم کاهش می‌یابد، در صورتی که با افزایش مقدار جاذب و مدت زمان تماس ذرات جاذب با محلول حاوی یون کروم، درصد حذف افزایش یافته و سپس به حالت تعادل می‌رسد. همچنین حداکثر ظرفیت جذب برای جاذی‌های ریشه، ساقه و برگ زرشک به‌ترتیب برابر 92/23 ، 6/15 و 40/32میلی گرم بر گرم بدست آمد. نتایج حاصل از مطالعات تعادلی مشخص ساخت که فرآیند جذب از مدل ایزوترمی لانگمیر پیروی می‌کند. بنابراین استفاده از ضایعات ارزان قیمت کشاورزی و سازگار با محیط زیست به منظور حذف فلز سنگین کروم و امکان استفاده مجدد از این آب‌ها در مصارف کشاورزی در کشور بسیار راه‌گشا می‌باشد.

کلیدواژه‌ها

عنوان مقاله [English]

Review and evaluate the performance of natural absorbent stems, leaves and roots of Barberry in removing chromium from wastewater

نویسندگان [English]

  • Ali Shahidi 1
  • Zahra Zeraatkar 2
  • Akbar Mohamadi 2

1 Water engineering Dept. Faculty of Agriculture University of Birjand Birjand Iran

2 Water Eng. Dept.- faculty of Agriculture- University of Birjand- Birjand- Iran

چکیده [English]

One of the biggest needs facing most societies today is the lack of fresh water. Lack of safe water resources and high costs of treatment plans often prevent communities' access to this vital need. Therefore providing a reliable method that the elimination of industrial pollution, low cost and environmentally is very necessary. This study aimed to investigate the removal of hexavalent chromium from waste water by absorbing roots, stems and leaves of barberry was done. The initial pH, reaction time, absorption weight and initial concentration of chromium was the most important parameters that in this study examined in each adsorbent. The results showed that the removal efficiency of hexavalent chromium by increasing pH and initial chromium concentration decreases, in the event that increase the amount of particulate absorbent and adsorbent contact time with the solution containing chromium ion, removal rate increases and then reaches a state of equilibrium. It was also observed that the absorbent roots of barberry with less than two other absorbent removal rate is higher. Therefore, use of low-cost agricultural waste is very helpful in order to remove the heavy metals chromium and reuse of water for agriculture in the country.

کلیدواژه‌ها [English]

  • Wastewater
  • Industrial Wastewater
  • Heavy Metal
  • Natural absorbent
  • Barberry Root
Agarwal, GS., Bhuptawat, HK., Chaudhari, S., 2006. Biosorption of aqueous chromium(VI) by Tamarindus indica seeds, Bioresource Technology 97, 949-56.
Asadi, A., Dehghani, MA, Zare, M.R., Rahmani A., Golestani Far, H., 2011. Northern Khorasan Medical Journal 4, 7-13. (in Persian)
Babel, S.T., Kurniawan, A., 2003. A research study on Cr (VI) removal from contaminated wastewater
Bansal, M., Singh, D., Garg, VK., 2009. A comparative study for the removal of hexavalent chromium from aqueous solution by agriculture wastes carbons, Journal of Hazardous Materials 171, 83-92.
Bosaiedi, N., 2012. Dissertation of the Faculty of Natural Resources and Environmental Sciences, Birjand University. 68-90. (in Persian)
Choi, HD., Cho, JM., Baek, K., Yang, JS., Lee, JY., 2009. Influence of Cationic Surfactant on Adsorption of Cr(VI) Onto Activated Carbon. J Hazard Mater 161, 1565-1568.
Di Natale, F., Lancia, A., Molino, A., Musmarra, D., 2007. Removal of chromium ions form aqueous solutions by adsorption on activated carbon and char, Journal of Hazardous Materials 145, 381-90.
Ghaneian, MH., Ehrampush, M.H., Dewari, M., Jamshidi, B., Amrallahi, M., 2012. Journal of Yazd School of Public Health 2, 19-28. (in Persian)
Ghani zadeh, A., Ghaneian, M., Asgari, A., 2013. Journal of Qom University of Medical Sciences 2, 16-7. (in Persian)
Guo, Y., Qi, J., Yang, Sh, K., Wang, Z., Xu, H., 2002. Adsorption of Cr(VI) on micro- and mesoporous rice husk-based active carbon Materials Chemistry and Physics 78, 132-137
Gupta, R., Mohapatra, H., 2003. Microbial biomass: An economical alternative for removal of heavy metals from waste water, Indian Journal of Experimental Biology 41, 945-966.
Jalil Nejad, N., Shahidi, A., 2013. Master's thesis, Removal of Heavy metal ions (Cd2+ and Pb2+) from synthetic wastewater using Loofah and pumice as natural adsorbents and evaluation of pollution distribution model in river with MIKE11.Birjand university, Iran. (in Persian)
Karthikeyan, T., Rajgopal, S., Miranda, LR., 2005. Chromium (VI) adsorption from aqueous solution by Hevea Brasilinesis sawdust activated carbon, Journal of Hazardous Materials 124, 192-9.
Krika, F., Azzouz, N., Chaker Ncibi, M., 2011. Adsorptive removal of cadmium from aqueous solution by cork biomass: Equilibrium, dynamic and thermodynamic studies. Arabian Journal of Chemistry 59, 1-7.
Malkoc, E., Nuhoglu, Y., Dundar, M., 2006. Adsorption of chromium(VI) on pomace- an olive oil industry waste: batch and column studies. J Hazard Mater 138, 142-51.
Mohan, D., Pittman, CU Jr., 2006. Activated carbons and low cost adsorbents for remediation of tri- and hexavalent chromium from water. Journal of Hazard Mater 137, 762-811.
Mohan, D., Rajput, S., Singh, VK., Steele, PH. Pittman, Jr CU., 2011. Modeling and evaluation of chromium remediation from water using low cost bio-char, a green adsorbent, Journal of Hazardous Materials188, 319-33.
Moussavi, G., Khosravi, R., 2010. Removal of cyanide from wastewater by adsorption onto pistachio hull wastes: parametric experiments, kinetics and equilibrium analysis, Journal of Hazardous Materials 183,724–730.
Neagu, V., Mikhalovsky, S., 2010. Removal of hexavalent chromium by new quaternized crosslinked poly (4-vinylpyridines). Journal of Hazard Mater 183, 533-540.
Park, D., Yun, Y.S. Park, J.M., 2005. Studies on hexavalent chromium biosorption by chemically treated biomass of Ecklonia sp., Chemosphere 60, 1356–1364.
Pehlivan, E., Altun, T., 2008. Biosorption of chromium ion from aqueous solutions using Walnutm Hzalnut and Almond shell. Journal of Hazardous Materials 155, 378-384.
Raji, C., Manju, G.N. Anirudhan, T.S., 1997. Removal of heavy metals ions from water saw dust based activated carbon, Indian Journal of Engineering and Material Sciences 4, 254-260.
Rao, M., Pavwate, A.V. Bhole, A.G., 2002. Removal of Cr and Ni from aqueous solution using bagasse and fly ash. Waste Management 22, 821-830.
Sari, A., Tuzen, M., Citak, D., Soylak, M., 2007. Equilibrium, kinetic and thermodynamic studies of adsorption of Pb(II) from aqueous solution onto Turkish kaolinite clay. Journal of Hazardous Materials 149, 283–291.
Schneider, RM., Cavalin, CF., Barros, MASD., Tavares, CRG., 2007. Adsorption of chromium ions in activated carbon, Chemical Engineering Journal 132, 355-62.
Shahidi, A, Khashi Siuki, A., Zaraatkar, Z., 2016. Performance Assessment of natural adsorbent using Barberry Root in the removal of Chromium from aqueous environment (Case study: Groundwater resource of Birjand), Journal of Environmental Studies 41, 827-840. (in Persian)
Shahriari, T., moasheri, N., Sharifzadeh, Gh., 2010. Chromium and copper concentrations in groundwater and distribution network of drinking water in Birjand city in 2010-2010. Journal of Birjand University of Medical Sciences, 67-62. (in Persian)
Taghi zadeh, AS, Khodadadi, M., Shahriari, T. Dari, H., Zafaraniyeh, M., Khosravi, R., 2012. Journal of Birjand University of Medical Sciences 2, 180-173. (in Persian)
Umpuch, C., Bunmanan, N., Kueasing, U., Kaewsan, P., 2011. Adsorption of Lead from synthetic solution using Luffa Charcoal. World Academy of Science, Engineering and Technology 5, 11-15.
Weber, W.J., 1972. Physicochemical Processes for Water Quality control, John Wiley and Sons Inc., New York.
WHO., 1992. Guidelines for drinking water quality, 2nd Ed., World Health Organization, USA.
Yu, LJ., Shukla, SS., Dorris, KL., Shukla, A., Margrave, JL., 2003. Adsorption of chromium from aqueous solutions by maple sawdust., Journal of Hazardous Materials 100, 53-63.
Zimmermann, AC., Mecabô, A., Fagundes, T., 2010. Rodrigues CA. Adsorption of Cr(VI) Using Fe-Crosslinked Chitosan Complex (Ch-Fe). Journal of Hazard Mater 179, 192-196.