کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
686282 | 889067 | 2006 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dewatering of phosphorus extracted from liquid swine waste
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Dewatering of phosphorus extracted from liquid swine waste Dewatering of phosphorus extracted from liquid swine waste](/preview/png/686282.png)
چکیده انگلیسی
Phosphorus (P) recovery from liquid swine manure is an attractive technology when on-farm application of liquid swine manure is not an option. We developed a technology that enables separation of this P, but its high moisture content makes transportation difficult. In this work, we investigated dewatering procedures to concentrate the P product. Sludge rich in calcium phosphate (>20% P2O5) was obtained using a field prototype, and it was further dewatered using a combination of polymer treatment and filter bags. Anionic polyacrylamide polymer treatment (⩾20 mg/L) was effective to flocculate the P-rich sludge, which enhanced filtration and dewatering. Without polymer, filtration was incomplete due to clogging of filters. Non-woven polypropylene and monofilament filter bag fabrics with mesh size ⩽200 μm retained >99% of suspended solids and total P. Solids content dramatically increased from about 1.5% to >90%. These dewatered solids can be transported more economically off the farm for use as a valuable fertilizer material.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 97, Issue 1, January 2006, Pages 183-190
Journal: Bioresource Technology - Volume 97, Issue 1, January 2006, Pages 183-190
نویسندگان
Ariel A. Szögi, Matias B. Vanotti, Patrick G. Hunt,