Cow urine as a potential source for struvite production

  • سال انتشار: 1392
  • محل انتشار: مجله بین المللی بازیافت مواد آلی در کشاورزی، دوره: 3، شماره: 1
  • کد COI اختصاصی: JR_ROWA-3-1_006
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 527
دانلود فایل این مقاله

نویسندگان

Meghanath Prabhu

Applied and Environmental Biotechnology Laboratory, Department of Biological Sciences, Birla Institute of Technology and Science, Pilani, K. K. Birla Goa Campus, Goa, India

Srikanth Mutnuri

and Science, Pilani, K. K. Birla Goa Campus, Near NH17B, Bypass Road Zuarinagar, 403 726 Goa, India

چکیده

Background Rock phosphate deposits are non-renewableand are facing a decline. Due to this, phosphate fertilizersare going to be limited in future. Struvite is a crystallinemineral substance containing equimolar amount (1:1:1) ofmagnesium ammonium and phosphate ions (MgNH4PO4-6H2O), a good source of phosphorus and a slow releasefertilizer. In the present study it was crystallized from cowurine using brine as cheap source of magnesium. Cow urineand brine was mixed at different proportion to find out theoptimum concentration for struvite crystallization. Crystallizedstruvite was characterized by X-ray diffraction,thermogravimetric and differential thermal analysis, Fouriertransform infrared spectroscopy and scanning electronmicroscopy and energy dispersive spectroscopy.Results The ratio of 1:0.5 cow urine and brine mixinggave the best quality struvite at pH 9. The analysis ofstruvite for phosphate, magnesium and ammonium ionsshowed 5.85, 3.16, and 0.56 % respectively. The fertilizerpotential of struvite was evaluated on the growth of Vignaradiata. The best growth was observed in the pots wherestruvite was added at a concentration of 2 g/kg of soil.Conclusion Struvite is a good source of phosphate and itcan be recovered from livestock waste such as cow urine.Struvite can be made from a renewable source for a sustainableagricultural development. Theoretically at theyield of 40 g/L a total of 12,176 tons struvite could bemade per day all over India for fertilizer use.

کلیدواژه ها

Brine Cow urine Crystallization Fertilizer Phosphate Struvite

مقالات مرتبط جدید

اطلاعات بیشتر در مورد COI

COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.

کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.