Application of barley straw to remove nitrate from drainage water
Publish place: Iran Agricultural Research، Vol: 36، Issue: 1
Publish Year: 1396
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IAR-36-1_012
تاریخ نمایه سازی: 13 شهریور 1402
Abstract:
ABSTRACT-Nowadays farmers often use N-fertilizers to increase crop yield, but they lost quickly by leaching causes environmental contaminations that reported as most important source of pollutant. Although biofilters are useful for removing nitrate from drainage water, but many researches show that they need an external carbon source to sustain denitrification. Many researchers study on different method, but most of them need equipment or material that becoming use in laboratory experiment. So this study describes laboratory experiments that investigated nitrate removal with barley straw in different percentages layered or mixed with soil. Results showed that layering method was more effective for removing nitrate. The percentage of optimum volume mixture of barley straw in layering and mixing methods was ۲۰% and ۳۰% respectively, both removing approximately ۸۰% of the influent nitrate. So barley straw can be used in a layered form as an effective, prompt, feasible and inexpensive method to remove nitrate.
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Authors
Shahab Ansari
Department of Water Engineering, College of Agriculture, Isfahan University of Technology, Isfahan, I. R. Iran
M. Heidarpour
Department of Water Engineering, College of Agriculture, Isfahan University of Technology, Isfahan, I. R. Iran.
S. F. Mousavi
Department of Water Engineering and Hydraulic Structures, Faculty of Civil Engineering, Semnan University, Semnan, I. R. Iran
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