The impact of residential septic tanks on soil water infiltration and groundwater contamination in Duhok city
DOI:
https://doi.org/10.25007/ajnu.v7n4a297Abstract
This study was conducted to assess the impact of septic water on soil water infiltration in Duhok city potentially
contaminating regional groundwater through designing a large-scaled laboratory physical model of vertical flow
direction packed homogenously with silt-Clay soil. The designed model was supplied with newly collected septic
water. With steady-state flow condition, the model was run, water samples were collected and analyzed weekly.
Various parameters and constituents that may influence soil structure and water infiltration were examined including : Electrical conductivity, sodium, calcium, magnesium, carbonate, bicarbonate, residual sodium carbonate (RSC), pHc and adjusted sodium absorption ratio (adj. SAR). For assessing groundwater quality, bacteriological analysis were conducted. Analytical results were used to estimate the examined parameters and predict their future trends. Results revealed that electrical conductivity (EC) was accumulating until it reaches the carrying capacity. Sever hazard of (RSC) was detected within 25 meter depth. Average pHc was 6.74 indicating the tendency of lime (CaCO3) to precipitate from applied septic water. adj. SAR for port A and port B were 11.1 and 8.65 respectively which, caused severe soil deterioration, but on the other hand helped in decreasing the rate of contaminants transport for treatment within the soil before reaching the groundwater. Results of bacteriological analysis indicated that groundwater shallower than 31 meter was contaminated by fecal and total coliform bacteria. This study helped local authorities in establishing precaution strategies of groundwater management to protect public health.
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References
2. Ayers, R. & Westcot, D. (1985). Water quality for agriculture. FAO Irrigation and drainage paper 29 Rev. 1. Food and Agricultural Organization. Rome,1, 74.
3. Blaylock, A. (1994). Soil salinity, salt tolerance, and growth potential of horticultural and landscape plants. University of Wyoming, Cooperative Extension Service, Department of Plant, Soil, and Insect Sciences, College of Agriculture.
4. Carrow, R. & Duncan, R. (1998). Salt-affected turfgrass sites: assessment and management. John Wiley & Sons. consequences (No. 631.416 S6).
5. Deshpande, S. & Aher, K. (2012). Evaluation of groundwater quality and its suitability for drinking and agriculture use in parts of Vaijapur, District Aurangabad, MS, India.
6. Hanson, B., Grattan, S., & Fulton, A. (1999). Agricultural salinity and drainage. University of California Irrigation Program, University of California, Davis.
7. Hillel, D. (2013). Introduction to soil physics. Academic press.
8. Holland, J. (1992). Development of a Comprehensive Modeling System for Remediation of Contaminated Groundwater.
9. Horneck, D., Ellsworth, J., Hopkins, B., Sullivan, D., & Stevens, R. (2007). Managing salt-affected soils for crop production. [Covallis, Or.]: Oregon State University Extension Service.
10. Kochary, S.A. (2017). Experimental modeling to Investigate the transport of septic Tank contaminants in Duhok city, Iraqi Kurdistan Region (Ph.D. dissertation, University of Duhok, Duhok, Kurdistan Region of Iraq).
11. Kochary, S., Noori, B., & Byl, T. (2017). Assessment of selected physico-chemical parameters of groundwater in direct contact with septic tanks: experimental modeling. Journal of Duhok University, 20(1), 231-240.
12. Naidu, R., Rengasamy, P., & Sumner, M. (1995). Australian sodic soils: Distribution, properties and management. East Melbourne, VIC: CSIRO Australia.
13. Naseem, S., Hamza, S., & Bashir, E. (2012). Assessment of geochemistry of soils for agriculture at Winder, Balochistan, Pakistan. In Water Quality, Soil and Managing Irrigation of Crops. InTech.
14. Omotoso, O., & Ojo, O. (2012). Assessment of quality of river Niger floodplain water at Jebba, central Nigeria: implications for irrigation. Water Utility Journal, 4, 13-14.
15. Ryan, J., Estefan, G., & Rashid, A. (2007). Soil and plant analysis laboratory manual. ICARDA.
16. Sumner, M. & Naidu, R. (1998). Sodic soils distribution, properties, management, and environmental
17. USEPA, U. (1997). Exposure factors handbook. Office of Research and Development, Washington.
18. Yates, M. (1985). Septic tank density and ground‐water contamination. Groundwater, 23(5), 586-591.
19. Zaidi, J., & Pal, A. (2015). Influence of temperature on physico-chemical properties of freshwater ecosystem of Bundelkhand region of Uttar Pradesh, India. Int. J. Curr. Res. Chem. Pharma. Sci, 3, 1-8.
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