کاهش بار آلی فاضلاب کارخانه تولید روغن زیتون به روش تصفیه شیمیایی و بیولوژیک
هانیه میربلوکی
1
(
دکتری محیط زیست
)
آریامن قویدل
2
(
سازمان جهاد دانشگاهی گیلان
)
کلید واژه: فاضلاب کارخانه تولید روغن زیتون, COD, تصفیه شیمیایی, تصفیه بیولوژیک,
چکیده مقاله :
پساب آلاینده ناشی از صنعت تولید روغن زیتون، به دلیل بار آلودگی بالا، یک چالش اکولوژیکی جدی محسوب میشود. میزان تقاضای اکسیژن شیمیایی (COD) در این فاضلاب به شدت بالاست و بعلت وجود ترکیبات فنول، در مقابل تجزیه بیولوژیکی بسیار مقاوم است. در پژوهش آزمایشگاهی-کاربردی حاضر، در ابتدا روش تصفیه شیمیایی انعقاد و لخته سازی جهت کاهش سمیت فاضلاب بکار گرفته شد و سپس جهت مراحل تکمیلی تصفیه و بی خطرسازی مواد باقیمانده نهایی، تصفیه بیولوژیک به روشهای بیهوازی و هوازی مورد استفاده قرار گرفت. نتایج بدست آمده از بررسیهای آزمایشگاهی نشان داد که روش شیمیایی بیش از 50 درصد از بارآلی و سمی فاضلاب را حذف کرد و در نهایت، میزان COD فاضلاب خروجی از فرآیند تصفیه زیستی بهmg/L 1100 رسید و شرایط ورود به تصفیهخانه فاضلاب شهری را احراز کرد. بر این اساس، پژوهش انجام شده، راه حل مناسبی برای مرتفع کردن چالشهای محیط زیستی ناشی از صنایع فرآوری زیتون ارائه میکند.
چکیده انگلیسی :
Contaminant effluent from olive oil production industry, due to high pollution load is a serious ecological challenge. The amount of chemical oxygen demand (COD) is very high in this wastewater and is very resistant to biodegradation due to phenol compounds. In the present experimental- applied work, the chemical coagulation and flocculation treatment method was used to reduce the toxicity of wastewater and then, for complementary treatment procedures and detoxification the final residues, biological treatmen was used for anaerobic and aerobic processes. the results of the laboratory studies showed that chemical method removed more than 50% of wastewater's organic and toxic load and ultimately, the COD removal rate of the effluent from the biological treatment process reached 1100 mg/L, meeting the requirements for discharge into the municipal wastewater treatment plant. Accordingly, the conducted research presents an appropriate solution for addressing the environmental challenges arising from olive processing industries.
Abu-Dalo, M., Abdelnabi, J., Al-Rawashdeh, N. A., Albiss, B., & Al Bawab, A. (2022). Coupling coagulation-flocculation to volcanic tuff-magnetite nanoparticles adsorption for olive mill wastewater treatment. Environmental Nanotechnology, Monitoring & Management, 15, 100416.
Al-Asmar, A. (2006). Impact of some industrial activities on the surrounding environment, Damietta, Egypt [Doctoral dissertation, Mansoura University].
Baransi-Karkaby, K., Hassanin, M., Raanan-Kiperwas, H., Massalha, N., & Sabbah, S. (2025). Methane production from anaerobic pre-treatment of municipal wastewater combined with olive mill wastewater: A demonstration study. Water Science & Technology, 91 (2), 126–2025.
Bouigua, H., Bakali, R., Jaber, H., El Kabous, K., Choukri, S., Elyachioui, M., & Ouhssine, M. (2024). A remarkable step in the aerobic biological treatment of Olive Mill Wastewater (OMW): A combination of selected microbial strains that enhance their decolorization and depollution.
Bouigua, H., Bakali, R., Jaber, H., El Kabous, K., Choukri, S., Elyachioui, M., & Ouhssine, M. (2024). A remarkable step in the aerobic biological treatment of Olive Mill Wastewater (OMW): A combination of selected microbial strains that enhance their decolorization and depollution. E3S Web of Conferences, 527, 02007.
Bouyakhsass, R., Souabi, S., Khattabi, S., Taleb, A., & Pala, A. (2023). Optimization of coagulation-flocculation for landfill leachate treatment: An experimental design approach using response surface methodology. Environmental Nanotechnology, Monitoring & Management, 20, 100841.
Fahrni, M. S., Bellouk, H., El Harchli, G. H., El Mahjoub, A., El Khammar, F., Chaouch, A., & Khalil, F. (2026). Sequential electrocoagulation-Fungal biotreatment as a pretreatment approach for olive mill wastewater (Fez, Morocco). Scientific African, 31, e03241.
Fleyfel, L. M., Matta, M., Sayegh, N. F., & El Najjar, N. H. (2024). Olive mill wastewater treatment using coagulation/flocculation and filtration processes. Heliyon, 10 (4), e40348.
Gonçalves, M. R., Costa, J. C., Marques, I. P., & Alves, M. M. (2012). Strategies for lipids and phenolics degradation in the anaerobic treatment of olive mill wastewater. Water Research, 46 (5), 1684–1692.
Jyia, H., Mohssine, A., Belouafa, S., & EL Harfaoui, S. (2024). Modeling and optimization of olive mill wastewater dephenolization by a process combining coagulation and advanced oxidation using an activated lime coagulant and hydrogen peroxide. Heliyon, 10(4), e100929.
Khani, MR. Mahvi, AH. Zazouli, MA. Yousefi, Z. Dadban Shahamat, Y. (2019). Investigating the treatment and mineralization of olive oil mill wastewater by using electrocoagulation and novel various advanced oxidations: a kinetic study. Iranian Journal of Health and Environment;12(1):47-62.
Koutsos, T. M., Chatzistathis, T., & Balampekou, E. I. (2018). A new framework proposal, towards a common EU agricultural policy, with the best sustainable practices for the re-use of olive mill wastewater. Science of the Total Environment, 622–623, 42–953.
Mohssine, A., Zmirli, Z., El, S., Belouafa, S., Sallek, B., & Chaair, H. (2023). Wastewater remediation using multi-soil layering (MSL) Eco-technology: A comprehensive and critical review. Process Safety and Environmental Protection, 178 (September), 1045–1082.
Pelendridou, K., Michailides, M. K., Zagklis, D. P., Tekerlekopoulou, A. G., Paraskeva, C. A., & Vayenas, D. V. (2014). Treatment of olive mill wastewater using a coagulation–flocculation process either as a single step or as post-treatment after aerobic biological treatment. Journal of Chemical Technology and Biotechnology, 89 (12), 1866–1874.
Singh, S. K., Singh, A., Singh, B., & Vashistha, P. (2020). Application of thermo-chemically activated lime sludge in production of sustainable low clinker cementitious binders. Journal of Cleaner Production, 264, 121570.
Standard Methods for the Examination of Water and Wastewater, 23rd Edition, 2017.