بررسی مقدار و اشکال شیمیایی فلزات سنگین در لجنفاضلاب تهران برای کاربرد در کشاورزی
الموضوعات :سمیه ناجی راد 1 , اکبر قویدل 2 , حسینعلی علیخانی 3 , علی اشرف سلطانی طولارود 4
1 - عضو باشگاه پژوهشگران جوان و نخبگان واحد اردبیل، دانشگاه آزاد اسلامی، اردبیل، ایران.
2 - استادیار گروه علوم و مهندسی خاک دانشگاه محقق اردبیلی، اردبیل، ایران. *(مسوول مکاتبات)
3 - استادیار گروه علوم و مهندسی خاک دانشگاه تهران، کرج، ایران.
4 - دانشیار گروه علوم و مهندسی خاک دانشگاه محقق اردبیلی، اردبیل، ایران.
الکلمات المفتاحية: آلودگی محیطزیست, تصفیه فاضلاب, دفع لجنفاضلاب و کلیفرم,
ملخص المقالة :
زمینه و هدف: از بین روش های دفع لجنفاضلاب، کاربرد در زمین به دلیل منافع اقتصادی و کاهش هزینههای خرید کود برای کشاورزان، ارجح است. ولی در صورتی که لجن حاوی مقادیر بالایی فلزاتسنگین و آلودگی میکروبی باشد باعث آلودگی خاک و محیطزیست میشود. روش بررسی: در این تحقیق مقادیر کل، قابل عصارهگیری با DTPA و محلول عناصر آهن، روی، سرب، کادمیوم، کبالت، مس، منگنز و نیکل و جمعیت کلیفرمها در لجن تهیهشده از سه تصفیهخانه شهرک غرب، اکباتان، و شوش تهران اندازهگیری شده و با استانداردهای جهانی حد آلایندگی این عناصر و استاندارد تعداد کلیفرمها مقایسه شدند. یافتهها: نتایج نشان داد که در مجموع 01/0% از مجموع کل فلزات موردمطالعه به شکل محلول، 32/1% به شکل قابل عصاره گیری با DTPA و 67/98% به اشکال دیگر و غیرقابل دسترس بود. از بین سه نمونه لجن موردمطالعه، لجنفاضلاب شوش دارای بیشترین مقدار مجموع کل فلزاتسنگین (گرم بر کیلوگرم وزن خشک لجن73/39) بود و بعد از آن به ترتیب تصفیهخانههای اکباتان ( گرم بر کیلوگرم وزن خشک لجن 42/28) و شهرک غرب (گرم بر کیلوگرم وزن خشک لجن 95/22) قرار داشتند. بحث و نتیجهگیری: به دلیل بالا بودن مقدار روی و مس در نمونههای لجن، در مقایسه با استاندارد، نمونههای لجن تصفیهخانههای موردمطالعه در گروه کیفیت استثنایی که قابلیت کاربرد در کشاورزی را دارد، قرار نگرفتند. همچنین مقایسه جمعیت کلیفرمها با استانداردها نشان داد که از این نظر نیز نمونههای لجن در گروه B قرار دارند و کاربرد آنها در کشاورزی با محدودیتهایی همراه خواهد بود.
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- Metcalf, E., Tchobanoglous, G., 2003. Wastewater engineering: treatment disposal reuse: McGraw-Hill; Boston. USA. 384 p.
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- Epstein, EL., Taylor, JM., Chancy, RL., 1976. Effects of sewage sludge and sludge compost applied to soil on some soil physical and chemical properties. Journal of Environmental Quality. Vol. 5(4), pp. 422-6.
- Bhangoo, MS., Day, KS., Sudanagunta, VR., Petrucci, VE., 1988. Application of poultry manure influences Thompson seedless grape production and soil properties. Hort. Science (USA).
- Wong, JW., Selvam, A., 2006. Speciation of heavy metals during co-composting of sewage sludge with lime. Chemosphere. Vol. 63(6), pp. 980-6.
- Dutta, S., 2002. Environmental Treatment Technologies for Hazardous and Medical Wastes: Remedial Scope and Efficacy: McGraw-Hill Education (India) Pvt Limited.
- Clesceri, LS., Eaton, AD., Greenberg, AE., 1988. Standard Methods for the Examination of Water and Wastewater: American Public Health Association.
- Walkley, A., Black, IA., 1934. An examination of the Degtjareff method for determining soil organic matter, and a proposed modification of the chromic acid titration method. Soil science. 1934. Vol. 37(1), pp. 29-38.
- Kjeldahl, J., 1883. A new method for the determination of nitrogen in organic matter. Z. Anal. Chem. Vol. 22(1), pp. 366-82.
- Olsen, SR., 1954. Estimation of available phosphorus in soils by extraction with sodium bicarbonate. U.S. Dep. Of Agric. Cric. 939.
- Lindsay, WL., Norvell, WA., 1978. Development of a DTPA soil test for zinc, iron, manganese, and copper. Soil science society of America journal. Vol. 42(3), pp. 421-8.
- Alef, K., Nannipieri, P., 1995. Methods in applied soil microbiology and biochemistry: Academic Press.
- European Council Directive 86/278/EEC. 2005. Sewage Sludge Metal Level Standards.
- USEPA. 1993. The Standards for the Use or Disposal of Sewage Sludge, Title 40 of the Code of Federal Regulations, Part 503.
- USEPA. 1996. Soil Screening Guidance, EPA Tech. Background Document No. 9355.4-23.
- Kharrazi, S.M., Younesi, H., Abedini Torghabe, J. 2014. The Application of Active Sewage Sludge on the Vermicomposting of Agricultural Waste. Journal of Water and Wastewater. Vol. 25 (5), 76-85. (In Persian)
- Ali, S.M., 1994. Chemical and biological heavy metal dissolution process for sewage sludge. Master’s Thesis. Asian institute of technology. Pathumthani, Thailand.
- Oake, RJ., Booker, CS., Davis, RD., 1985. Fractionation of heavy metals in sewage sludges. Water Science and Technology. Vol. 17(4-5), pp. 587-98.
- Stover, RC., Sommers, LE., Silviera, DJ., 1976. Evaluation of metals in wastewater sludge. Journal (Water Pollution Control Federation) Vol 1, pp. 2165-75.
- Ratanachoo, K., 1995. Biological heavy metal removal from sewage sludge. Master's Thesis, Asian Institute of Technology, Pathumthani, Thailand.
- Rahmani, H.R., Moayeri, M., Mazaheri Kouhestani, Z., Khodabakhsh, N., Sharifi, H. 2014. The investigationof some quality properties and heavy metal concentration in dried sewage sludge of Isfahan Shahinshahr wastewater treatment plant. Journal of Environmental Science and Technology. 16 (2): 55-65. (In Persian)
- Alloway, B.J., 1995. Heavy Metals in Soils (2nd ed.) Blackie Academic & Professional. Glasgow, UK.
- Smith, SR., 1994. Effect of soil pH on availability to crops of metals in sewage sludge-treated soils. I. Nickel, copper and zinc uptake and toxicity to ryegrass. Environmental Pollution, Vol. 85(3), pp. 321-7.
- Scheltinga, HM., 1987. Sludge in agriculture: the European approach. Water Science and Technology. Vol. 19(8) pp. 9-18.
- USEPA. 1999. Control of pathogens and vector attraction in sewage sludge. EPA 625/R-92-013.
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- Babel, S., del Mundo Dacera, D., 2006. Heavy metal removal from contaminated sludge for land application: a review. Waste Management. Vol. 26(9), pp. 988-1004.
- Metcalf, E., Tchobanoglous, G., 2003. Wastewater engineering: treatment disposal reuse: McGraw-Hill; Boston. USA. 384 p.
- Smith, SR., 1996. Agricultural Recycling of Sewage Sludge and the Environment: CAB International.
- Wong, JW., Xiang, L., Gu, XY., Zhou, LX., 2004. Bioleaching of heavy metals from anaerobically digested sewage sludge using FeS2 as an energy source. Chemosphere. Vol. 55(1), pp. 101-7.
- EPA832. 2000. Biosolids technology fact sheet: land application of bioslids. Available from, <http://www.epa.gov>.
- Epstein, EL., Taylor, JM., Chancy, RL., 1976. Effects of sewage sludge and sludge compost applied to soil on some soil physical and chemical properties. Journal of Environmental Quality. Vol. 5(4), pp. 422-6.
- Bhangoo, MS., Day, KS., Sudanagunta, VR., Petrucci, VE., 1988. Application of poultry manure influences Thompson seedless grape production and soil properties. Hort. Science (USA).
- Wong, JW., Selvam, A., 2006. Speciation of heavy metals during co-composting of sewage sludge with lime. Chemosphere. Vol. 63(6), pp. 980-6.
- Dutta, S., 2002. Environmental Treatment Technologies for Hazardous and Medical Wastes: Remedial Scope and Efficacy: McGraw-Hill Education (India) Pvt Limited.
- Clesceri, LS., Eaton, AD., Greenberg, AE., 1988. Standard Methods for the Examination of Water and Wastewater: American Public Health Association.
- Walkley, A., Black, IA., 1934. An examination of the Degtjareff method for determining soil organic matter, and a proposed modification of the chromic acid titration method. Soil science. 1934. Vol. 37(1), pp. 29-38.
- Kjeldahl, J., 1883. A new method for the determination of nitrogen in organic matter. Z. Anal. Chem. Vol. 22(1), pp. 366-82.
- Olsen, SR., 1954. Estimation of available phosphorus in soils by extraction with sodium bicarbonate. U.S. Dep. Of Agric. Cric. 939.
- Lindsay, WL., Norvell, WA., 1978. Development of a DTPA soil test for zinc, iron, manganese, and copper. Soil science society of America journal. Vol. 42(3), pp. 421-8.
- Alef, K., Nannipieri, P., 1995. Methods in applied soil microbiology and biochemistry: Academic Press.
- European Council Directive 86/278/EEC. 2005. Sewage Sludge Metal Level Standards.
- USEPA. 1993. The Standards for the Use or Disposal of Sewage Sludge, Title 40 of the Code of Federal Regulations, Part 503.
- USEPA. 1996. Soil Screening Guidance, EPA Tech. Background Document No. 9355.4-23.
- Kharrazi, S.M., Younesi, H., Abedini Torghabe, J. 2014. The Application of Active Sewage Sludge on the Vermicomposting of Agricultural Waste. Journal of Water and Wastewater. Vol. 25 (5), 76-85. (In Persian)
- Ali, S.M., 1994. Chemical and biological heavy metal dissolution process for sewage sludge. Master’s Thesis. Asian institute of technology. Pathumthani, Thailand.
- Oake, RJ., Booker, CS., Davis, RD., 1985. Fractionation of heavy metals in sewage sludges. Water Science and Technology. Vol. 17(4-5), pp. 587-98.
- Stover, RC., Sommers, LE., Silviera, DJ., 1976. Evaluation of metals in wastewater sludge. Journal (Water Pollution Control Federation) Vol 1, pp. 2165-75.
- Ratanachoo, K., 1995. Biological heavy metal removal from sewage sludge. Master's Thesis, Asian Institute of Technology, Pathumthani, Thailand.
- Rahmani, H.R., Moayeri, M., Mazaheri Kouhestani, Z., Khodabakhsh, N., Sharifi, H. 2014. The investigationof some quality properties and heavy metal concentration in dried sewage sludge of Isfahan Shahinshahr wastewater treatment plant. Journal of Environmental Science and Technology. 16 (2): 55-65. (In Persian)
- Alloway, B.J., 1995. Heavy Metals in Soils (2nd ed.) Blackie Academic & Professional. Glasgow, UK.
- Smith, SR., 1994. Effect of soil pH on availability to crops of metals in sewage sludge-treated soils. I. Nickel, copper and zinc uptake and toxicity to ryegrass. Environmental Pollution, Vol. 85(3), pp. 321-7.
- Scheltinga, HM., 1987. Sludge in agriculture: the European approach. Water Science and Technology. Vol. 19(8) pp. 9-18.
- USEPA. 1999. Control of pathogens and vector attraction in sewage sludge. EPA 625/R-92-013.