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- W2370725743 abstract "Taking the condition under uncontrolled pH as the contrast,the rules of NH3-N and PO43——P release during the hydrolysis acidification of mixed sludge at 10-15 ℃ with the pH controlled at 3.0 and 10.0 were studied respectively,and then,the feasibility of using struvite precipitation method to recover nitrogen and phosphorus was evaluated.The results showed that,strong alkali could facilitate the release of NH3-N;the release amount was close to the maximum: 16.80 mg/g on the 10th day,and the process was inhibited at pH 3.0.Contrary to the release of NH3-N,the release amount of PO43——P under different pH conditions showed a descending order as follows: at pH 3.0 blank test at pH 10.0,the release amount reached the maximum: 8.52 mg/g after 12 days of reaction under acidic condition.It was advisable to consider 12 days of reaction under acidic condition as the optimal operating condition for the struvite precipitation.However,due to the serious interference of Ca2+ to the struvite formation,rational measures to removing Ca2+ should be taken first so as to benefit the struvite formantion." @default.
- W2370725743 created "2016-06-24" @default.
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- W2370725743 date "2011-01-01" @default.
- W2370725743 modified "2023-09-26" @default.
- W2370725743 title "Impact of acid-alkali adjustment on release and recovery of nitrogen and phosphorus from mixed sludge" @default.
- W2370725743 hasPublicationYear "2011" @default.
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