Clarification of phosphorus fractions and phosphorus release enhancement mechanism related to pH during waste activated sludge treatment

doi:10.1016/j.biortech.2016.10.010

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 中国科学院环境生物技术重点实验室

	Clarification of phosphorus fractions and phosphorus release enhancement mechanism related to pH during waste activated sludge treatment
	He, Zhang-Wei; Liu, Wen-Zong; Wang, Ling; Tang, Cong-Cong; Guo, Ze-Chong; Yang, Chun-Xue; Wang, Ai-Jie
刊名	BIORESOURCE TECHNOLOGY
	2016-12
卷号	222 页码:217-225
关键词	Waste Activated Sludge Phosphorus Species Enhancement Mechanism Ph Molybdate Reactive p Accumulation
DOI	10.1016/j.biortech.2016.10.010
英文摘要	This study aimed to clarify phosphorus (P) fractions in waste activated sludge (WAS) and explore release performance and enhancement mechanism of different P species related to pH. Results showed that inorganic P (IP) was the major P fraction in raw sludge (87.86% of total solid P), and non-apatite inorganic P (NAIP), the most labile P forms, occupied 81.30% of IP, suggesting that WAS could be selected as potential substitution of phosphate rock. The optimized acid and alkaline conditions were pH = 4 and pH = 12 for molybdate reactive P accumulation, increased by 311.20 mg/L and 479.18 mg/L compared to raw sludge, which were 3.80 and 5.84 times higher than that of control, respectively. The mechanism study demonstrated that high pH promoted NAIP release, and apatite P was sensitive to low pH. Moreover, the releasable and recoverable P depended on both fractions of different P species in sludge and pH adjustment for sludge treatment. (C) 2016 Elsevier Ltd. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/36111]
专题	生态环境研究中心_中国科学院环境生物技术重点实验室
推荐引用方式 GB/T 7714	He, Zhang-Wei,Liu, Wen-Zong,Wang, Ling,et al. Clarification of phosphorus fractions and phosphorus release enhancement mechanism related to pH during waste activated sludge treatment[J]. BIORESOURCE TECHNOLOGY,2016,222:217-225.
APA	He, Zhang-Wei.,Liu, Wen-Zong.,Wang, Ling.,Tang, Cong-Cong.,Guo, Ze-Chong.,...&Wang, Ai-Jie.(2016).Clarification of phosphorus fractions and phosphorus release enhancement mechanism related to pH during waste activated sludge treatment.BIORESOURCE TECHNOLOGY,222,217-225.
MLA	He, Zhang-Wei,et al."Clarification of phosphorus fractions and phosphorus release enhancement mechanism related to pH during waste activated sludge treatment".BIORESOURCE TECHNOLOGY 222(2016):217-225.