Recovery and removal of nutrients from swine wastewater by using a novel integrated reactor for struvite decomposition and recycling

被引：0
作者：
Haiming Huang
Dean Xiao
Jiahui Liu
Li Hou
Li Ding
机构：
[1] Hebei Key Laboratory of Applied Chemistry,
[2] School of Environmental and Chemical Engineering,undefined
[3] Yanshan University,undefined
[4] College of Resource and Environmental Engineering,undefined
[5] Guizhou Institute of Technology,undefined
来源：
Scientific Reports | / 5卷
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摘要：
In the present study, struvite decomposition was performed by air stripping for ammonia release and a novel integrated reactor was designed for the simultaneous removal and recovery of total ammonia-nitrogen (TAN) and total orthophosphate (PT) from swine wastewater by internal struvite recycling. Decomposition of struvite by air stripping was found to be feasible. Without supplementation with additional magnesium and phosphate sources, the removal ratio of TAN from synthetic wastewater was maintained at >80% by recycling of the struvite decomposition product formed under optimal conditions, six times. Continuous operation of the integrated reactor indicated that approximately 91% TAN and 97% PT in the swine wastewater could be removed and recovered by the proposed recycling process with the supplementation of bittern. Economic evaluation of the proposed system showed that struvite precipitation cost can be saved by approximately 54% by adopting the proposed recycling process in comparison with no recycling method.
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[1]  
Canfield DE(2010)The evolution and future of earth’s nitrogen cycle Science 330 192-196
[2]  
Glazer AN(2009)The disappearing nutrient Nature 461 716-718
[3]  
Falkowski PG(2012)Removal and recovery of phosphorus as struvite from swine wastewater using microbial fuel cell Bioresour. Technol. 114 303-307
[4]  
Gilbert N(2013)Struvite recovery from municipal-wastewater sludge centrifuge supernatant using seawater NF concentrate as a cheap Mg(II) source Sep. Purif. Technol. 108 103-110
[5]  
Ichihashi O(2014)Modeling phosphorus removal and recovery from anaerobic digester supernatant through struvite crystallization in a fluidized bed reactor Water Res. 51 1-10
[6]  
Hirooka K(2009)Phosphorus recovery from wastewater by struvite crystallization: A review Crit. Rev. Environ. Sci. Technol. 39 433-477
[7]  
Lahav O(1963)Solubility products of di- and trimagnesium phosphates and the dissociation of magnesium phosphate solutions Trans. Faraday Soc. 59 1580-1584
[8]  
Rahaman MdS(2007)Repeated use of MAP decomposition residues for the removal of high ammonium concentration from landfill leachate Chemosphere 66 2233-2238
[9]  
Mavinic DS(2013)Phosphates (V) recovery from phosphorus mineral fertilizers industry wastewater by continuous struvite reaction crystallization process Water Res. 47 3635-3643
[10]  
Meikleham A(2013)Looking beyond struvite for P-recovery Environ. Sci. Technol. 47 4965-4966
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