تصفیه فاضلاب مدل حاوی ترکیبات آلی آروماتیک، رنگزا و فلزات سنگین با فرآیند زیستی هوازی

نوع مقاله : مقاله کامل پژوهشی

نویسندگان

1 گروه شیمی کاربردی، دانشکده شیمی، دانشگاه تبریز

2 گروه پاتوبیولوژی، دانشکده دامپزشکی، دانشگاه تبریز

چکیده

فرآیندهای زیستی به­ دلیل صرفه اقتصادی و بهره‌وری خوب برای تصفیه فاضلاب‌های حاوی ترکیبات آلی مورد استفاده قرار می‌گیرند. ترکیب فرآیندهای زیستی و اکسایش شیمیایی پیشرفته موجب افزایش راندمان فرآیند تصفیه و نیز تصفیه مواد مقاوم می ­شود. معمولاً فرآیندهای اکسایش شیمیایی به­ عنوان مرحله پیش‌تصفیه برای تبدیل این مواد به مواد زیست‌­تخریب‌پذیر مورد استفاده قرار می‌گیرند. در تحقیق حاضر از فرآیند زیستی هوازی (Ae-Bio) به ­تنهایی و نیز از ترکیب آن با فرآیند UV-H2O2 (Ae-Bio/UV-H2O2) جهت تصفیه فاضلاب مدل حاوی ترکیبات آلی آروماتیک، مواد رنگزا (متیلن­بلو (Methylene blue) و قرمز اسیدی 14) و فلزات سنگین (سرب، مس، کادمیم، کروم، و روی) استفاده شد. در هر دو فرآیند ساده و ترکیبی، ابتدا میکروارگانیسم‌ها با فاضلاب مدل سازگار شدند و سپس فاضلاب مدل توسط میکروارگانیسم‌های سازگار شده تصفیه گردید. میزان حذف COD (Chemical Oxygen Demand) و رنگ متیلن­بلو در فاضلاب پس از 96 ساعت در فرآیند Ae-Bio به ­ترتیب برابر با %75 و %82 و در فرآیند UV-H2O2/Ae-Bio به ­ترتیب برابر با %71 و %89 به ­دست آمد. این مطالعه اثبات کرد که روش زیستی هوازی و نیز ترکیب آن با روش‌های اکسایش پیشرفته توانایی تصفیه فاضلاب‌های سمی را دارا است و در شرایط مناسب، کارایی فرآیند زیستی می‌تواند بیش از فرآیند ترکیبی باشد.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Treatment of Model Wastewater Containing Aromatic Organic Compounds, Dyestuffs, and Heavy Metals by Aerobic Biological Process

نویسندگان [English]

  • Amirreza Rezaei 1
  • Soheil Aber 1
  • Katayon Nofouzi 2
1 Department of Applied Chemistry, Faculty of Chemistry, University of Tabriz, Tabriz, Iran
2 Pathobiology Department, Faculty of Veterinary Medicine, University of Tabriz, Tabriz, Iran
چکیده [English]

The present work studies the capability of an aerobic biological (Ae-Bio) and a combined aerobic biological-advanced oxidation (Ae-Bio/UV-H2O2) process in the treatment of a toxic model wastewater composed of organic aromatic compounds, dyestuffs, and heavy metals. The coexistence of organics with heavy metals causes a high level of toxicity that raises the need for the successful adaptation of microorganisms to the wastewater before biological treatment processes. In each of the Ae-Bio and Ae-Bio/UV-H2O2 processes, the sludge was first adapted to the wastewater and then, the adapted sludge was used for the removal of COD and methylene blue in the wastewater.

کلیدواژه‌ها [English]

  • Methylene blue
  • Activated sludge
  • Combined treatment
  • Wastewater treatment
  • Acid red 14
Almasi H, Asgari Gh, Leili M, Sharifi Z, Seid-Mohammadi A, “The Study of Phenol Removal from Aqueous Solutions Using Oxidizing Agents of Peroxide Hydrogen, Persulfate and Periodate Activated by Ultrasound”, Journal of Rafsanjan University of Medical Sciences, 2017, 15, 835-848.
Andreozzi R, Caprio V, Marotta R, Radovnikovic A, “Ozonation and H2O2/UV treatment of clofibric acid in water: a kinetic investigation”, Journal of Hazardous Materials, 2003, 103, 233-246.
Benitez FJ, Acero JL, Gonzalez T, Garcia J, “Ozonation and Biodegradation Processes in Batch Reactors Treating Black Table Olives Washing Wastewaters”, Industrial & Engineering Chemistry Research, 2001, 40, 3144-3151.
Bokare AD, Choi W, “Review of iron-free Fenton-like systems for activating H2O2 in advanced oxidation processes”, Journal of Hazardous Materials, 2014, 275, 121-135.
Cao W, Mehrvar M, “Slaughterhouse wastewater treatment by combined anaerobic baffled reactor and UV/H2O2 processes”, Chemical Engineering Research and Design, 2011, 89, 1136-1143.
Chelme-Ayala P, El-Din MG, Smith DW, “Degradation of bromoxynil and trifluralin in natural water by direct photolysis and UV plus H2O2 advanced oxidation process”, Water Research, 2010, 44, 2221-2228.
Elleuch L, Messaoud M, Djebali K, Attafi M, Cherni Y, Kasmi M, Elaoud A, Trabelsi I, Chatti A, “A new insight into highly contaminated landfill leachate treatment using Kefir grains pre-treatment combined with Ag-doped TiO2 photocatalytic process”, Journal of Hazardous Materials, 2020, 382, 121119.
Eslami H, Sedighi Khavidak S, Salehi F, Khosravi R, Fallahzadeh RA, Peirovi R, Sadeghi S, “Biodegradation of methylene blue from aqueous solution by bacteria isolated from contaminated soil”, Journal of Advances in Environmental Health Research, 2017, 5, 10-15.
Hajjami K, M. Ennaji M, Fouad S, Oubrim N, Khallayoune K, Cohen N, “Assessment of Helminths Health Risk Associated with reuse of Raw and Treated Wastewater of the Settat City (Morocco)”, Resources and Environment, 2012, 2, 193-201.
Hamoda MF, Al-Ghusain I, Al-Mutairi NZ, “Sand filtration of wastewater for tertiary treatment and water reuse”, Desalination, 2004, 164, 203-211.
Irani R, Khoshfetrat AB, Forouzesh M, “Real municipal wastewater treatment using simultaneous pre and post-ozonation combined biological attached growth reactor: Energy consumption assessment”, Journal of Environmental Chemical Engineering, 2021, 9, 104595.
Jaén-Gil A, Buttiglieri G, Benito A, Mir-Tutusaus JA, Gonzalez-Olmos R, Caminal G, Barceló D, Sarrà M, Rodriguez-Mozaz S, “Combining biological processes with UV/H2O2 for metoprolol and metoprolol acid removal in hospital wastewater”, Chemical Engineering Journal, 2021, 404, 126482.
Kee TC, Bay HH, Lim CK, Muda K, Ibrahim Z, “Development of bio-granules using selected mixed culture of decolorizing bacteria for the treatment of textile wastewater”, Desalination and Water Treatment, 2015, 54, 132-139.
Kim K, Lee K, So S, Cho S, Lee M, You K, Moon J, Song T, “Fenton-like reaction between copper ions and hydrogen peroxide for high removal rate of tungsten in chemical mechanical planarization”, ECS Journal of Solid State Science and Technology, 2018, 7, P91-P95.
Manavi N, Kazemi AS, Bonakdarpour B, “The development of aerobic granules from conventional activated sludge under anaerobic-aerobic cycles and their adaptation for treatment of dyeing wastewater”, Chemical Engineering Journal, 2017, 312, 375-384.
Martínez F, Molina R, Rodríguez I, Pariente MI, Segura Y, Melero JA, “Techno-economical assessment of coupling Fenton/biological processes for the treatment of a pharmaceutical wastewater”, Journal of Environmental Chemical Engineering, 2018, 6, 485-494.
Muruganandham M, “Photochemical oxidation of reactive azo dye with UV-H2O2 process”, Dyes and Pigments, 2004, 62, 269-275.
Oller I, Malato S, Sánchez-Pérez JA, “Combination of Advanced Oxidation Processes and biological treatments for wastewater decontamination-A review”, Science of The Total Environment, 2011, 409, 4141-4166.
Sheikhmohammadi A, Yazdanbakhsh A, Moussavi G, Eslami A, Rafiee M, Sardar M, Almasian M, “Degradation and COD removal of trichlorophenol from wastewater using sulfite anion radicals in a photochemical process combined with a biological reactor: Mechanisms, degradation pathway, optimization and energy consumption”, Process Safety and Environmental Protection, 2019, 123, 263-271.
Smith AC, Hussey MA, Gram Stain Protocols, 2005.
Tebbutt THY, Principles of Water Quality Control. Elsevier, 1997.
Wang M, Shen W, Yan L, Wang X-H, Xu H, “Stepwise impact of urban wastewater treatment on the bacterial community structure, antibiotic contents, and prevalence of antimicrobial resistance”, Environmental Pollution, 2017, 231, 1578-1585.
Xu S, Zhang Y, Sims A, Bernards M, Hu Z, “Fate and toxicity of melamine in activated sludge treatment systems after a long-term sludge adaptation”, Water Research, 2013, 47, 2307-2314.
Zhang L, Wei F, Zhao Q, Lv S, Yao Y, “Real herbicide wastewater treatment by combined means of electrocatalysis application and biological treatment”, Chemistry and Ecology, 2020, 36, 382-395.