PHOSPHORUS REMOVAL AS Ca-P PRECIPITATE FROM SWINE WASTEWATER AND EQUILIBRIUM CALCULATION
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- NAGARE Hideaki
- 岡山大学 環境生命科学研究科
Bibliographic Information
- Other Title
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- リン酸カルシウム沈殿生成による養豚場放流水の水質改善と溶解平衡計算
- リンサン カルシウム チンデン セイセイ ニ ヨル ヨウトンジョウ ホウリュウスイ ノ スイシツ カイゼン ト ヨウカイ ヘイコウ ケイサン
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Description
Wastewater from livestock facilities shows higher concentration in organics and nutrients than domestic wastewater. In a treatment process of swime farmer in which biological treatment process is installed, effluent contained 17 mgP/L of phosphorus even though 96% of phosphorus was removed in the process. This paper deals with the further removal of phosphorus as calcium phosphate precipitation to show up to 67% of phosphorus was removed by raising pH. In addition, the issues on using softwares for chemical equilibrium reactions is discussed.
Journal
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- Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)
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Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) 71 (7), III_323-III_328, 2015
Japan Society of Civil Engineers
