A comprehensive understanding of saturation index and upflow velocity in a pilot-scale fluidized bed reactor for struvite recovery from swine wastewater
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- 作者：Xin Yea ; Zhi-Long Yea ; Yaoyin Loua ; Songqing Pana ; Xiaojun Wanga ; Ming Kuang Wangb ; Shaohua Chena ; shchen@iue.ac.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Fines retention ; Fluidized bed reactor ; Phosphorus recovery ; Struvite quality ; Swine wastewater ; Response surface methodology
- 刊名：Powder Technology
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：295
- 期：Complete
- 页码：16-26
- 全文大小：3127 K
文摘
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Struvite granulation is governed by saturation index (SI) and upflow velocity (vup).
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Decreasing SI or vup will reduce fines entrainment and improve phosphorus recovery.
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SI is more crucial to size distribution, crushing strength and morphology than vup.
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The purity of the products can be enhanced via harvesting larger struvite pellets.
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Phosphorus recovery and pellet quality can be both improved by SI and vup control.