بررسی کارایی نانو سیلیس اصلاح شده با پوکه معدنی در کاهش میزان نیترات (NO3) و فسفات (PO4) آب خروجی از پساب مزارع پرورش ماهی

نوع مقاله : مقاله کامل علمی - پژوهشی

نویسندگان

1 گروه تولید و بهره‌برداری آبزیان، دانشکده شیلات و محیط زیست، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران.

2 نویسنده مسئول، گروه تولید و بهره‌برداری آبزیان، دانشکده شیلات و محیط زیست، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران

3 گروه محیط زیست، دانشکده شیلات و محیط زیست، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، گرگان، ایران.

4 گروه شیلات، دانشکده علوم منابع طبیعی، دانشگاه گنبد، گنبد، ایران

چکیده

پساب خروجی از مزارع پرورش ماهی مقادیر بالایی از نیترات و فسفات دارند. در مطالعه حاضر حذف نیترات و فسفات از پساب مزارع آبزیان توسط جاذب نانوسیلیس اصلاح شده با پوکه معدنی مورد بررسی قرار گرفت. به این منظور جاذب مورد نظر در شرایط آزمایشگاهی به 250 میلی لیتر پساب (با غلظت 50% و 100%) اضافه شد (دوز جاذب 01/0، 05/0، 1/0، 5/0 و 1 گرم بر لیتر). قبل از شروع آزمایش غلظت نیترات و فسفات موجود در پساب اندازه گیری شد. طبق نتایج بیشترین میزان حذف نیترات و فسفات در دوز 5/0 گرم بر لیتر به عنوان دوز بهینه انتخاب شد به طوری که در غلظت‌های بالاتر از این مقدار راندمان حذف نیترات و فسفات کاهش یافت، دلیل این امر این است که مکان‌های فعال در دسترس در دوزهای بالاتر از 5/0 گرم کاهش می‌یابد. در این آزمایش زمان بهینه تماس جاذب با آلاینده 45 دقیقه به دست آمد. به نظر می‌رسد نانوسیلیس اصلاح شده با پوکه معدنی توانایی بالایی (راندمان 86%) برای حذف نیترات و فسفات از پساب پرورش آبزیان را دارد و می‌توان در پالایش پساب خروجی از مزارع آبزیان قبل از استفاده مجدد در سیستم برگشتی یا قبل از ورود به محیط زیست مورد استفاده قرار گیرد.

کلیدواژه‌ها


عنوان مقاله [English]

Performance evaluation of silica nanoparticles modified with Pumice reduce the amount of nitrate (NO3) and phosphate (PO4) in wastewater effluent water from fish farms

نویسندگان [English]

  • ahmadreza jabaleh 1
  • Seyed Aliakbar Hedayati 2
  • Saeed Gorgin 1
  • Hasan Rezaei 3
  • Mohammad Harsij 4
1 Dept. of Fisheries and Aquatic Ecology, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
2 Corresponding Author, Dept. of Fisheries and Aquatic Ecology, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
3 Dept. of Environmental Sciences, Faculty of Fisheries and Environmental Sciences, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran
4 Dept. of Fisheries, Faculty of Natural Resources, Gonbad University, Gonbad, Iran
چکیده [English]

Effluents from fish farms have high levels of nitrate and phosphate. In the present study, the removal of nitrate and phosphate from aquatic farm effluent was investigated by nanosilica adsorbent modified with mineral pumice. For this purpose, the desired adsorbent was added to 250 ml of effluent (with 50% and 100% concentration) in laboratory conditions (adsorbent doses of 0.01, 0.05, 0.1, 0.5 and 1 g/l). Nitrate and phosphate concentrations in the effluent were measured before the experiment. According to the results, the highest amount of nitrate and phosphate removal at a dose of 0.5 g/l was selected as the optimal dose, so the nitrate and phosphate removal efficiency was decreased at concentrations higher than this amount, because the available active ingredient was reduced at doses higher than 0.5 g. In this experiment, the optimum contact time of the adsorbent with the contaminant was 45 minutes. It seems that modified nanosilica with mineral pumice has a high ability (86% efficiency) to remove nitrate and phosphate from aquaculture effluents and can be used to purify effluents from aquaculture farms before reuse in the return system or before entering to the environment.

کلیدواژه‌ها [English]

  • Aquaculture effluent
  • Nitrate and phosphate removal
  • Nano-silica
  • Mineral pumice
1.Ganizadehardi, G.H. 2008. Investigation of organic and nutrient removal from municipal wastewater in a continuous batch reactor and activated carbon granule medium. Master Thesis in Environmental Health, Department ofEnvironmental Health, Tarbiat Modares University, Tehran. 92p. (In Persian)
2.Eskandari, M. 2011. Study of the feasibility and using of waste water in irrigation using nanotechnology [Dissertation]. Tehran: Academic Center for Education of Tarbiat Modares University. (In Persian)
3.Ebrahimi, A., and Najafpour, Gh. 2009. Recognizing dairy industry wastewater and study of its various biological purification methods. 3rd Specialized Conference on Environmental Engineering. Tehran: University of Tehran. (In Persian)
4.Hashemi, F., Godini, H., Shamskhoram Abadi, G.H., and Mansori, L. 2012. Evaluation of the adsorption efficiency of walnut green peel in removing phenol from aqueous solutions. Journal of Health and Environment, Scientific Research Quarterly of Iranian Scientific Societyof Environmental Health, 7: 2. 265-276. (In Persian)
5.Kabir, M., Hoseini, S.A., Ghorbani, R., and Kashiri, H. 2018. In the removal of phosphate and nitrate from farm effluents, the efficiency of microalgae Scenedesmus obliquus Gomishan shrimp farming. Journal of Aquatic Ecology. 8: 8. 124-133. (In Persian)
6.Asgarihasani, M., Hedayati, S.A., Ghadermazi, A., Poladi, M., Zangiabadi, S., and Naghshbandi, N. 2017. Use of algal bioreactor to reduce the load of effluent from fish farms. Quarterly Journal of Animal Environment Eleventh Year, No. 3. (In Persian)
7.Abolhasani, M., Hosseini, S.A., Ghorbani, R., and Vinse, A. 2015. Removal of phosphate and nitrate from municipal effluent by algal cultivation and production of algae biomass Scenedesmus obliquu. Journal of Aquatic Ecology. 5: 4. 31-33. (In Persian)
8.Azarm, L., Javadzadeh, N., and Jalilzadeh, J. 2019. Investigation of nitrate and phosphate uptake ability from the effluent of hydrothermal fish ponds in Khuzestan province by Chlorella vulgari microalgae. Journal of Animal Environment, Twelfth Year, No. 2.(In Persian)
9.Javanshir, A., and Jandaghi, M. 2008. Investigation of the ability of Anodonta signa bivalves to reduce nitrate and phosphate concentrations in both open and closed systems. Journal of Water and Wastewater. Issue 66. (In Persian)
10.Heydari, F., Yadgarian, L., and Salimi, L. 2019. Evaluation of the ability of Scallop Bivalvia: Pectinidae: in the biological treatment of shrimp farms in Goater Bay, Chabahar. Oceanography, 10: 37. 23-31. (In Persian)
11.Martı́nez, M.E., Sánchez, S., Jiménez, J.M., El Yousfi, F., and Muñoz, L. 2000. Nitrogen and phosphorus removal
from urban wastewater by themicroalga Scenedesmus obliquus. Bioresour. Technol. 73: 3. 263-72.
12.Shokohsaljoghi, Z., Melkpor, A., Rafii, G.H., Imani, A., and Bakhtiari, M. 2010. Removal of nitrite and nitratecontaminants from the effluent of closed aquaculture system by modified bentonites. Journal of Water and Wastewater, No. 2. (In Persian)
13.Norisepehr, M., Karimian, K., Ghahremani, A., Zarabi, M., and Jafarinia, M. 2012. Evaluation of the efficiency of crude mineral pumice and its modified form using hydrogen peroxide in removing excess fluoride from aqueous solutions. Journal of Health. 4: 1. 31-46. (In Persian)
14.Elhami, Sh., Saghakvaz, M., andRahbar, N. 2020. Removal of phosphate from water and effluent usingSepia internal skeleton powder(squid) as a natural adsorbent, Journal of Water and Wastewater, 31: 5. 155-140. Doi: 10.22093 / wwj.2020.207894.2948. (In Persian)
15.Haghshenas, M.M.J., and Ghobadinia, M. Investigation of reducing the concentration of nitrate and phosphate in water of fish farms using sugar beet, chopped forage corn and wheat husk. Natural Environment, Iranian Journal of Natural Resources, 70: 3. 541-548. (In Persian)
16.Hafshejani, L.D., Hooshmand, A., Naseri, A.A., Mohammadi, A.S., Abbasi, F., and Bhatnagar, A. 2016. Removal of nitrate from aqueous solution by modified sugarcane bagasse biochar. Ecological Engineering, 95:101-111. Doi:10.1016/ j.ecoleng. 2016.06.035.
17.Javanshir, A., and Jandaghi, M. 2015. Evaluation of phosphate and nitrate removal capacity of anodontacygnea (unionidae) in open and closed systems. Journal of Water and Wastewater,66: 25-33.
18.Abedi Coupayee, J., Mousavi, F., and Ferasati, M. 2012. The use ofNano-adsorbents plants in order to remove nitrate from aqueous solutions. Journal of Research in Water Resources 3: 28-38. (In Persian)
19.Bina, B., Amin, M.M., Rashidi, A.M., and Pourzamani, H. 2013. Evaluation of the efficiency of single-walled, multi-walled and carbon hybrid nanotubesin removing benzene and toluenefrom aqueous solutions. 24: 3. 12-21.(In Persian)
20.Soleimani, M., Ansari, A., Haj Abbassi, M.A., and Abedi, J. 2008. “Investigation of nitrate and ammonium removal from groundwater by mineral filters.” Journal of Water and Wastewater, 67: 18-26.(In Persian)
21.Chen, A.H., Liu, S.C., Chen, C.Y., and Chen, C.Y. 2008. Comparative adsorption of Cu(II), Zn(II), and Pb(II) ions in aqueous solution on the crosslinked chitosan with epichlorohydrin. Journal of Hazardous Materials, 154: 3. 184-191.
22.Yang, H., Tang, Y., and Zou, S.2014. Electrochemical removal of surfactants from Pt nanocubes. Journal of Electrachemistry Communications, 38: 134-137.
23.Özacar, M., and Sengil, I.A. 2005. Adsorption of metal complex dyes from aqueous solutions by pine sawdust. Journal of Bioresource Technology,96: 7. 791-795.
24.Zhang, Z., and Deng, Y. 2009. Investigation on rapid degradation of sodium dodecyl benzene sulfonate (SDBS) under microwave irradiation in the presence of modified activated carbon powder with ferreoussulfate. Journal of Desalination,
249: 3. 1022-1029.
25.Vadivelan, V., and Kumar, K.V. 2005. Equilibrium, kinetics, mechanism, and process design for the sorption of methylene blue onto rice husk. Journal of Colloid and Interface Science,286: 1. 90-100.