Investigation of Nitrogen and Phosphorus Recovery from Swine Wastewater by Struvite Crystallization
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- KY Nguyen Minh
- PhD Program in Maritime Science and Technology, National Kaohsiung University of Science and Technology (NKUST) Faculty of Environment and Natural Resources, Nong Lam University
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- NHUT Huynh Tan
- Faculty of Environment and Natural Resources, Nong Lam University
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- HIEP Nguyen Trung
- Research Institute for Sustainable Development, Ho Chi Minh City University of Natural Resources and Environment
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- LAP Bui Quoc
- Faculty of Chemistry and Environment, Thuyloi University
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- HUNG Nguyen Tri Quang
- Faculty of Environment and Natural Resources, Nong Lam University
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- LIN Chitsan
- Department of Marine Environmental Engineering, National Kaohsiung University of Science and Technology (NKUST)
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- TAM Tran Thi Minh
- Faculty of Environment and Natural Resources, Nong Lam University
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- 尾﨑 彰則
- 九州大学熱帯農学研究センター
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説明
Swine wastewater is one of the environmental issues that negatively effect on the ecosystem and human health. Developing advanced technologies to treat and recover nutrients from swine wastewater have attracted the attention of scientists. This study investigated the simultaneous removal of nitrogen (N) and phosphorus (P) from swine wastewater by a magnesium ammonium phosphate hexahydrate (struvite, MgNH_4PO_4.6H_2O) crystallization process. The optimal condition for precipitation of struvite was determined at pH 9.0, and Mg^2+: NH_4 +: PO_4^3– ratio of 1.6:1:1.5, and reaction time of 30 minutes, the maximum removal of N and P reached 98.1 ± 0.5% and 98.9 ± 0.4%, respectively. The highest crystallization mass was obtained at 14.6 ± 0.6 gπ. In addition, characterization of struvite crystal was performed by X–ray diffraction (XRD), morphology, and chemical composition of struvite produced at optimal conditions as analyzed via SEM–EDS. Also, the economic analysis indicated that the struvite crystallization process is cost–feasible and friendly – environmental. These findings illustrated that struvite precipitation is an efficient method for removing both N and P in actual swine wastewater. This paper demonstrates the novel advantages of green technology, contributing to environmental protection towards sustainable development.
収録刊行物
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- Journal of the Faculty of Agriculture, Kyushu University
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Journal of the Faculty of Agriculture, Kyushu University 67 (1), 65-74, 2022
Faculty of Agriculture, Kyushu University
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詳細情報 詳細情報について
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- CRID
- 1390010292768806912
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- NII書誌ID
- AA00247166
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- DOI
- 10.5109/4772412
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- HANDLE
- 2324/4772412
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- ISSN
- 00236152
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- 本文言語コード
- en
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- 資料種別
- departmental bulletin paper
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- データソース種別
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- JaLC
- IRDB
- Crossref
- OpenAIRE