Effects of Solution pH and Seed Material on MAP Crystallization
International Journal of Environmental Protection and Policy
Volume 4, Issue 6, November 2016, Pages: 171-177
Received: Dec. 24, 2016; Published: Dec. 28, 2016
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Authors
Ping Tang, College of Environment and Material Engineering, Hangzhou Dianzi University, Hangzhou, China
Huan-lin Ma, College of Environment and Material Engineering, Hangzhou Dianzi University, Hangzhou, China
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Abstract
Experimental results revealed that solution pH was one of the most important factor which effected not only phosphorus recovery percentage but also phosphorus recovery rate during the struvite forming process. Introduction of seed materials increased the phosphorus recovery percentage to an extent and optimum seed particle range and adding amount were 70-140 mesh and 0.5g (solution pH=8.5). The one-stage seed addition worked better than multi-stage addition and phosphorus recovery percentage rose with increasing initial seed dosing. Seed addition speeded the phosphorus recovery rate to some extent on the whole.
Keywords
pH, Seed, Phosphorus Recovery Percentage, Struvite
To cite this article
Ping Tang, Huan-lin Ma, Effects of Solution pH and Seed Material on MAP Crystallization, International Journal of Environmental Protection and Policy. Vol. 4, No. 6, 2016, pp. 171-177. doi: 10.11648/j.ijepp.20160406.13
References
[1]
Liu X, Hu Z, Wang J, Wen G. Effect of hydraulic retention time and seed material on phosphorus recovery and crystal size from urine in an air-agitated reactor. Water Sci Technol. 2014; 69 (7): 1462-8.
[2]
Conley DJ, Paerl HW, Howarth RW, Boesch DF, Seitzinger SP, Havens, KE, Lancelot C, Likens GE. Controlling eutrophication by reducing both nitrogen and phosphorus. Science. 2009; 323: 1014-1015.
[3]
Paerl HW, Huisman J. Blooms like it hot. Science. 2008; 320 (5872): 57-58.
[4]
Lin J, Chen N, Pan Y. Arsenic speciation in newberyite (MgHPO4.3H2O) determined by synchrotron X-ray absorption and electron paramagnetic resonance spectroscopies: implications for the fate of arsenic in green fertilizers. Environmental science & technology. 2014; 48 (12): 6938-46.
[5]
Cordell D, Drangert J-O, White S. The story of phosphorus: Global food security and food for thought. Global Environmental Change. 2009; 19 (2): 292-305.
[6]
Kruk DJ, Elektorowicz M, Oleszkiewicz JA. Struvite precipitation and phosphorus removal using magnesium sacrificial anode. Chemosphere. 2014; 101: 28-33.
[7]
Liu Y, Kwag JH, Kim JH, Ra C. Recovery of nitrogen and phosphorus by struvite crystallization from swine wastewater. Desalination. 2011; 277:364–369.
[8]
Capdevielle A, Sykorova E, Biscans B, Beline F, Daumer ML. Optimization of struvite precipitation in synthetic biologically treated swine wastewater –determination of the optimal process parameters. J. Hazard. Mater. 2013; 244: 357–369.
[9]
Song YH, Weidler PG, Berg U, Nuesch R, Donnert D.. Calcite-seeded crystallization of calcium phosphate for phosphorus recovery. Chemosphere.2006; 63: 236–243.
[10]
Bauer PJ, Szogi AA, Vanotti MB. Agronomic effectiveness of calcium phosphate recovered from liquid swine manure. Agron. J. 2007; 99: 1352–1356.
[11]
Wang J, Burken JG, Zhang XQ. Effect of Seeding Materials and Mixing Strength on Struvite Precipitation. Water Environment Research. 2006; 78 (2): 125-132.
[12]
Pastor L, Mangin D, Barat R. A pilot-scale study of struvite precipitation in a stirred tank reactor: conditions influencing the process. Bioresour. Technol. 2008; 99 (14): 6285–6291.
[13]
Durrant, AE, Scrimshaw, MD, Stratful I, Lester JN. Review of the Feasibility of Recovering Phosphate from Wastewater for Use as a Raw Material by the Phosphate Industry. Environ Technol.1999; 20 (7): 749.
[14]
NEPA. Water and waste water monitoring analysis method [M].Beijing: China Environmental Science Press, 2002.
[15]
Doyle JD, Parsons SA. Struvite formation, control and recovery. Water Research.2002; 36: 3925–3940.
[16]
Adnan, A., Koch, F. A., Mavinic, D. S., 2003. Pilot-scale study of phosphorus recovery through struvite crystallisation-II: applying in-reactor supersaturation ratio as a process control parameter. J. Environ. Eng. Sci. 2, 473–483.
[17]
Battistoni P, Angelis A, Pavan P. Phosphorus removal from a real anaerobic supernatant by struvite crystallization. Water Res. 2001; 35: 2161–2178.
[18]
Momberg GA, Oellermann RA. The removal of phos-phate by hydroxyapatite and struvite crystallisation in South Africa. Water Sci Technol. 1992; 26: 987–96.
[19]
Battistoni P, Fava G, Pavan P, Musacco A, Cecchi F. Phosphate removal in anaerobic liquors by struvite crystallisation without addition of chemicals: preliminary results. Water Res 1997; 31: 2925–9.
[20]
Le Corre KS, Jones EV, Hobbs P, Parsons SA. Phosphorus recovery from wastewater by struvite crystallization: a review. Crit. Rev. Environ. Sci. Technol. 2009; 39: 433–477.
[21]
Kabdasli I, Parsons SA, Tunay O. Effect of major ions on struvite crystallization. In: Proceedings of the International Conference on Struvite: Its Role in Phosphorus Recovery and Reuse. Cranfield, UK. 2004.
[22]
Rahman MM, Salleh MAM, Rashid U, Ahsan A, Hossain MM, Ra CS. Production of slow release crystal fertilizer from wastewaters through struvite crystallization – A review. Arabian Journal of Chemistry. 2014; 7 (1): 139-55.
[23]
Rahaman MS, Ellis N, Mavinic DS. Effects of various process parameters on struvite precipitation kinetics and subsequent determination of rate constants. Water Sci. Technol. 2008; 57 (5): 647–654.
[24]
Mullin JW. Crystallization. Ipswich: Butterworth-Heinnemann. UK.1993.
[25]
Ali MI, Schneider PA. Crystallization of struvite from metastable region with different types of seed crystal. J. Non-Equilib. Thermodyn. 2005; 30: 95–111.
[26]
Munch EV, Barr K, Controlled struvite crystallization for removing phosphorus from anaerobic digester side-streams. Water Res. 2001; 35: 151.
[27]
Ali MI, Schneider PA. A fed-batch design approach of struvite system in controlled supersaturation. Chem. Eng. Sci. 61, 3951–3961.
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