自廢棄污泥萃取聚羥基烷基酸酯的方法(一)

專利類型

發明

專利國別 (專利申請國家)

中華民國

專利申請案號

099122691

專利證號

I 399345

專利獲證名稱

自廢棄污泥萃取聚羥基烷基酸酯的方法(一)

專利所屬機關 (申請機關)

國立暨南國際大學

獲證日期

2013/06/21

技術說明

本專利探討由生活污水實廠廢棄污泥萃取PHAs的方法，找出次氯酸鈉消化法最適條件為次氯酸鈉濃度20v/v%，污泥液固比0.67 mLmg-1，次氯酸鈉浸置時間30 min，在此條件下萃取所得PHAs 純度為72.5±1.75 wt%；次氯酸鈉-氯仿兩相萃取法最適條件為次氯酸鈉濃度30v/v%，污泥液固比2.00 mLmg-1，次氯酸鈉浸置時間45 min，萃取所得PHAs 純度為99.3±5.16 wt%；表面活性劑-次氯酸鈉萃取法最適條件為次氯酸鈉濃度40 v/v%，污泥液固比1.00 mLmg-1，次氯酸鈉浸置時間5 min，萃取所得PHAs 純度大於99.5 wt%。 The technology of extraction PHAs from wasted sewage sludge was developed in the study. The adequate extraction conditions for PHAs recovery digested by sodium hypochlorite were 20%(v/v) of hypochlorite concentration , 0.67 mLmg-1of liquid-solid ratio and 30 min of treatment time . Under these conditions, the purity of recovered PHAs was 72.5±1.75 wt%. The adequate extraction conditions for PHAs recovery digested by sodium hypochlorite solution and chloroform were 30%(v/v) of hypochlorite concentration, 2.00 mLmg-1of liquid-solid ratio and 45 min of treatment time . Under these conditions, the purity of recovered PHAs was 99.3±5.16 wt%. The adequate extraction conditions for PHAs recovery digested by sodium surfactant-hypochlorite were 40%(v/v) of hypochlorite concentration, 1.00 mLmg-1 of liquid-solid ratio and 5 min of treatment time. Under these conditions, the purity of recovered PHAs was higher than 99.5 wt%.

備註

依112.08.7.本會112年第2次研發成果管理審查會決議辦理 本會(收文號1120023877)同意該校112年4月26日來函1121002314號申請終止維護專利(國立暨南大學)

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