2012
DOI: 10.1016/s1001-0742(11)60969-8
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Recovery of phosphorus as struvite from sewage sludge ash

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Cited by 168 publications
(98 citation statements)
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“…F value is used to represent the impact of corresponding factor and a higher value shows a statistically significant effect. Herein, pH was the most significant factor affecting the phosphate recovery rate, which corresponded to the previous studies [15,16]. While the influence of n Mg :n P was less than reac- tion time, it is different from the previous study, which presented that phosphate recovery was highly associated with n Mg :n P rather than reaction time [17].…”
Section: Orthogonal Experimentssupporting
confidence: 72%
See 1 more Smart Citation
“…F value is used to represent the impact of corresponding factor and a higher value shows a statistically significant effect. Herein, pH was the most significant factor affecting the phosphate recovery rate, which corresponded to the previous studies [15,16]. While the influence of n Mg :n P was less than reac- tion time, it is different from the previous study, which presented that phosphate recovery was highly associated with n Mg :n P rather than reaction time [17].…”
Section: Orthogonal Experimentssupporting
confidence: 72%
“…In the present tests, the highest phosphate recovery of 96.7% was achieved under conditions of pH, n Mg :n P and reaction times were 9, 1.4, and 30 min, respectively. In addition, to get the most significant factor in the struvite precipitate tests, an analysis of variance was applied, as shown in Table 3 [15,16]. F value is used to represent the impact of corresponding factor and a higher value shows a statistically significant effect.…”
Section: Orthogonal Experimentsmentioning
confidence: 99%
“…To provide adequate mixing energy, stirred batch reactors are most frequently used, particularly in small-scale laboratory investigations as they are simple to operate and install (Table 3) (Kabdasli et al, 2000;Kim et al, 2006;Xu et al, 2012;Folleto et al, 2013). At a larger scale, fluidized bed reactors are commonly used as these provide solution turbulence and a greater reactive surface area (Seckler et al, 1996) thereby reducing crystallization induction time (Bhuiyan, 2008).…”
Section: Chemical Precipitation Methods In Agitated Reactormentioning
confidence: 99%
“…Apart from liquid waste, ash from municipal sewage sludge generated by incineration is P-rich and has potential for struvite recovery (P constitutes 13-25% of the total mass) (Hong et al, 2005;Xu et al, 2012). However, it requires mechanical, thermal (incineration) or chemical (acid/base leach) pre-treatments to allow for P recovery because of its strong retention with other elements like Ca, Mg, Al and Fe (Hong et al, 2005).…”
Section: Municipal Wastementioning
confidence: 99%
“…The reaction is shown in Equation 1 (Zhang et al, 2004). (1) Struvite precipitation was commonly used in different processes such as raw swine wastewater (Lin et al, 2015), anaerobic digestate effluent (Hidalgo et al, 2016), sewage sludge ash (Xu et al, 2012), urine (Antonini et al, 2011Kemacheevakul et al, 2014;Latifian et al, 2014;Zhigang et al, 2008), washing wastewater (Huang et al, 2010b), and reject water of sludge thickening and dewatering (Ren et al, 2015).…”
Section: Introductionmentioning
confidence: 99%