Document Type : Research Paper
Authors
Abstract
When good quality water is scarce, application of unconventional water resources is considered in agriculture. One of these sources is treated urban wastewater (TUW). In this research, in which plants were grown in medium-size pots, effect of irrigation with wastewater was evaluated on accumulation and distribution in soil profile of heavy metals (iron, manganese, zinc, copper, arsenic, cadmium, lead, and nickel) under greenhouse conditions of the University of Kurdistan. The factorial experiments were conducted according to complete randomized design with three replications. Also, the effect off three irrigation treatments consisting of TUW, alternating TUW- ordinary water, and ordinary water on the accumulation of heavy metals in the soil cultivated with corn and tomato plant were investigated. Soil samples were taken from four different depths and three horizontal distances from the plant. The results showed that TUW had significantly greater amounts of heavy metals in comparison with ordinary water. Also, the maximum and minimum amounts of heavy metal were observed in TUW and ordinary water, respectively. From the findings, it can be concluded that concentration of heavy metals decreased with increasing depth and horizontal distance from the plant location. Manganese (7.3 mg/kg) had the highest concentration in the soil. Also, Arsenic (5.41 mg/kg), iron (4.21 mg/kg), zinc (3.93 mg/kg) and copper (3.3 mg/kg) ranked from the second to fifth, respectively. Type of plants had a significant effect on the accumulation of manganese, zinc, and arsenic. According to the results of this study, there is a threat to human health of heavy metals contamination in plants such as corn and tomatoes. Therefore, it can recommended that irrigation with treated wastewater is to be limited to non-food crops.
Keywords
- اروندی، س.، و مقدس، ک. 1379. یکی از راه کارهای مقابله با کم آبی، استفاده بهینه از فاضلاب شهری. مجموعه مقالات اولین کنفرانس ملی بررسی راهکارهای مقابله با کم آبی و خشکسالی کرمان. 10-9 اسفند 1379. دانشگاه باهنر کرمان، کرمان، ایران، 55- 65.
- پارسافر، ن.، و معروفی، ص. 1392. اثر کاربرد فاضلاب بر تجمع عناصر سنگین در نیمرخ خاک تحت شرایط گلخانهای – لایسیمتری. مجله پژوهش آب در کشاورزی، ب، 27(2): 229-239.
- حسین پور، ا.، حق نیا، غ. ح.، علیزاده،ا.، و فتوت، ا. 1388. بررسی تغییرات کیفیت شیمیایی فاضلاب خام و پساب شهری در اثر عبور از ستونهای خاک. مجله آب و خاک (علوم و صنایع کشاورزی). 23 (3): 45-56.
- سازمان حفاظت محیط زیست ایران. ۱۳۷۸. ضوابط و استانداردهای زیست محیطی. انتشارات سازمان حفاظت محیط زیست ایران.
- شاکرمی، م.، معروفی، ص.، رحیمی ، ق.، و دشتی، ف. 1394. اثر فاضلاب و کمپوست بر انتقال برخی از فلزات سنگین در نیمرخ خاک. نشریه پژوهش آب در کشاورزی. ب، 29(1): 75-86.
- طبری، م.، و صالحی، آ. 1390. بررسی تأثیر آبیاری با استفاده از پساب فاضلاب شهری بر تجمع فلزات سنگین در خاک. علوم و تکنولوژی محیط زیست. 13(4): 59-49.
- عابدی، م.، و نجفی، ب. 1380. استفاده از فاضلاب تصفیه شده در کشاورزی. انتشارات کمیته ملی آبیاری و زهکشی ایران.248 صفحه.
- علیزاده، 1. 1389. طراحی سیستمهای آبیاری(جلد اول)، طراحی سیستمهای آبیاری سطحی، چاپ چهارم، انتشارات آستان قدس رضوی، مشهد.
- Abedi-Koupai, J., Mostafazadeh-Fard, B., Afyuni., M., and Bagheri, M. R. 2006. Effect of treated wastewater on soil chemical and physical properties in an arid region. Plant, Soil and Environment. 52(8): 335-344.
- Alizadeh, A., Bazari, M. E. Velayati, S., Hasheminia, M., and Yaghmaie, M. 2001. Irrigation of cron with wastewater. In: R. Ragab, G. Pearce, J. Changkim, S. Nairizi and A. Hamdy. (Eds.), 52nd ICID International. Workshop on Wastewater Reuse and Management. Seoul, Korea, 137- 146.
- Al-Lahham, O., El-Assi, N.M., and Fayyad, M. 2007. Translocation of heavy metals to tomato (Solanum lycopersicom L.) fruit irrigated with treated wastewater. Scientia Horticulturae Amsterdam. 113:250-254.
- Aghabarati, A., Hosseini, S.M., and Maralian, H. 2008. Heavy metal contamination of soil and olive trees (Olea europaea L.) in suburban areas of Tehran, Iran. Research Journal of Environmental Science. 2( 5): 323-329.
- Behbahaninia, A., Mirbagheri, S.A., Khorasani, N., Nouri, J., and Javid A.H. 2009. Heavy metal contamination of municipal effluent in soil and plants. Journal of Food, Agriculture and Environment. 7(3 – 4): 851-856.
- Boll, R., Dernbach, H., and Kayser, R. 1986. Aspects of land disposal of wastewater as experienced in Germany. Journal of Water Science and Technology. 18: 383-390.
- Brar, M.S., Khurana, M.P.S., and Kansal, B.D. 2002. Effect of irrigation by untreated sewage effluents on the micro and potentially toxic elements in soils and plants, Department of Soils, Punjab Agricultural University, Ludhiana, Punjab, India.
- Elbana, T. A., Ramadan, M. A., Gaber, H. M., Bahnassy, M. H., Kishk, F. M., and Selim, H. M. 2013. Heavy metals accumulation and spatial distribution in long term wastewater irrigated soils. Environmental Chemical Engineering. 1: 925–933.
- Gupta, S., Satpati, S., Nayek, S., and Garai, D. 2010. Effect of wastewater irrigation on vegetables in relation to bioaccumulation of heavy metals and biochemical changes. Environmental Monitoring and Assessment. 165( 1-4): 169-77.
- Hussian, G., and Al-Saati. A. J. 1999. wastewater quality and its reuse in agriculture in Saudi Arabia. Desalination. 123: 241-251.
- Mojiri, A., and Hamidi, A.A. 2011. Effects of municipal wastewater on accumulation of heavy metals in soil and wheat ( Triticum bestivum L.( with two irrigation method. Romanian Agricultural Research. 28: 217-222.
- Munir, J., Rusan, M., Hinnawi, S., and Rusan, L. 2007. Long term effect of wastewater irrigation of forage crops on soil and plant quality parameters. Desalination. 215: 143-152.
- Madejo´n, P., Maran˜o´n, T., and Murillo, J.M. 2006. Bio monitoring of trace elements in the leaves and fruits of wild olive and holm oak trees. Science of the Total Environment. 355: 187- 203.
- Mohammad, M., and Mazahreh., N. 2003. Changes in soil fertility parameters in response to irrigation of forage crops with secondary treated wastewater. Communications in Soil Science and Plant Analalysis. 34 (9 – 10): 1281-1294.
- Mancino, C. F., and Pepper, I. L. 1992. Irrigation of turf grass with secondary sewage effluent: soil quality, Agron. J. 84(4): 650–654.
- Nan, Z. L., Zhang, J., and Cheng, G. 2002. Cadmium and zinc interaction and their transfer in soil-Crop system under actual field conditions. Science of the Total Environment. 285(1-3): 187-195.
- Pescode, M.B. 1992. Wastewater treatment and use in agriculture. FAO, Irrigation and Drainage Paper No. 47, 118 p.
- Rattan, R.K., Datta, S.P., Chhonkar, P.K., Suribabu, K., and Singh, A.K. 2005. Long-term impact of irrigation with sewage effluents on heavy metal content in soils, crops and groundwater-A case study. . journal of Agriculture, Ecosystems and Environment. 109: 310-322.
- Saber, M. S. M. 1986. Prolonged effect of land disposal of human wastes on soil conditions. Journal of Water Science and Technology. 18: 371-374.
- Smith, C. J., Hopmans, P., and Cook, F.J. 1996. Accumulation of Cr, Pb, Cu, Ni, Zn and Cd in soil following irrigation with treated urban effluent in Australia. journal of Environmental Pollution. 94( 3): 317-323.
- Toze, S. 2006. Reuse of effluent water-benefits and risks. journal of Agricultural water Management. 80: 147-159.
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