Effect of operating conditions on the chemical phosphorus removal using ferric chloride by evaluating orthophosphate precipitation and sedimentation of formed precipitates in batch and continuous systems

Chemical Engineering Journal

Volumn 209, Issue , 2012, Pages 469-477

  Caravelli, Alejandro H ^a   De Gregorio, Carolina ^a   Zaritzky, Noemí E ^a,b  

^a DEPARTAMENTO DE QUÍMICA   (Argentina)

^b UNIVERSIDAD NACIONAL DE LA PLATA   (Argentina)

Author keywords

Activated sludge; Ferric chloride; Image analysis; Phosphorus simultaneous precipitation; Sedimentation; Sludge age

Indexed keywords

ACCUMULATION RATES; ACTIVATED SLUDGE; BATCH AND CONTINUOUS SYSTEMS; BATCH ASSAY; BATCH STUDIES; BATCH SYSTEMS; BETTER PERFORMANCE; CHEMICAL PHOSPHORUS REMOVAL; CONTINUOUS SYSTEM; EFFECT OF PH; FERRIC CHLORIDE; FLOC SIZE DISTRIBUTION; OPERATING CONDITION; OPTIMUM OPERATING CONDITIONS; P REMOVAL; PHOSPHATE BUFFERS; PHOSPHATE REMOVAL; REACTOR PERFORMANCE; SETTLING RATE; SETTLING TIME; SIMULTANEOUS DETERMINATIONS; SIMULTANEOUS PRECIPITATION; SLUDGE AGE;

BIOMASS; CHLORINATION; CHLORINE COMPOUNDS; FLOCCULATION; IMAGE ANALYSIS; IRON COMPOUNDS; LASERS; PHOSPHORUS; SEDIMENTATION; SEDIMENTS; SIZE DISTRIBUTION;

PRECIPITATION (CHEMICAL);

EID: 84865820750     PISSN: 13858947     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.cej.2012.08.039     Document Type: Article

References (22)

1. Metcalf, Eddy Wastewater Engineering: Treatment and Reuse 2002, McGraw-Hill. fourth ed.
2. Takács I., Murthy S., Smith S., Mc Grath M. Chemical phosphorus removal to extremely low levels: experience of two plants in the Washington, DC area. Water Sci. Technol. 2006, 53:21-28.
3. Thistleton J., Berry T.-A., Pearce P., Parsons S.A. Mechanisms of chemical phosphorus removal II. Iron (III) salts. Process. Saf. Environ. Prot.: Trans. Inst. Chem. Eng., Part B 2002, 80:265-269.
4. Szabó A., Tackàcs I., Murthy S., Daigger G.T., Licskó I., Smith S. Significance of design and operational variables in chemical phosphorus removal. Water Res. 2008, 80:407-416.
5. Caravelli A.H., Contreras E.M., Zaritzky N.E. Phosphorous removal in batch systems using ferric chloride in the presence of activated sludges. J. Hazard. Mater. 2010, 177:199-208.
6. He Q.H., Leppard G.G., Paige C.R., Snodgrass W.J. Transmission electron microscopy of a phosphate effect on the colloid structure of iron hydroxide. Water Res. 1996, 30:1345-1352.
7. Li J. Effects of Fe(III) on floc characteristics of activated sludge. J. Chem. Technol. Biot. 2005, 80:313-319.
8. Lees E.J., Noble B., Hewitt R., Parsons S.A. The impact of residual coagulant on downstream treatment processes. Environ. Technol. 2001, 22:113-122.
9. Oikonomidis I., Burrows L.J., Carliell-Marquet C.M. Mode of action of ferric and ferrous iron salts in activated sludge. J. Chem. Technol. Biot. 2010, 85:1067-1076.
10. Jenkins D., Richard M.G., Daigger G.T. Manual on the Causes and Control of Activated Sludge Bulking and Foaming 1993, Lewis Publishers, Inc., Chelsea, MI. second ed.
11. Rattanakawin C. Aggregate size distributions in sweep flocculation. Songklanakarin J. Sci. Technol. 2005, 27:1095-1101.
12. El Samrani A.G., Lartiges B.S., Montargès-Pelletier E., Kazpard V., Barrès O., Ghanbaja J. Clarification of municipal sewage with ferric chloride: the nature of coagulant species. Water Res. 2004, 38:756-768.
13. Appenzeller B.M.R., Duval Y.B., Thomas F., Block J.-C. Influence of phosphate on bacterial adhesion onto iron oxyhydroxide in drinking water. Environ. Sci. Technol. 2002, 36:646-652.
14. Warren L.A., Ferris F.G. Continuum between sorption and precipitation of Fe(III) on microbial surfaces. Environ. Sci. Technol. 1998, 32:2331-2337.
15. Deneux-Mustin S., Lartiges B.S., Villemin G., Thomas F., Yvon J., Bersillon J.L., Snidaro D. Ferric chloride and lime conditioning of activated sludges: an electron microscopic study on resin-embedded samples. Water Res. 2001, 35:3018-3024.
16. Resolution 336/2003, Water Authority, Province of Buenos Aires, Argentine, 2003.
17. Council of the European Union, Directive concerning urban waste water treatment (91/271/EEC), Off. J. Eur. Union, L 135/40, 1991.
18. Sengupta S., Pandit A. Selective removal of phosphorus from wastewater combined with its recovery as a solid-phase fertilizer. Water Res. 2011, 45:3318-3330.
19. Scherrenberg S.M., Neef R., Menkveld H.W.H., Van Nieuwenhuijzen A.F., Van Der Graaf J.H.J.M. Investigating phosphorus limitation in a fixed bed filter with phosphorus and nitrogen profile measurements. Water Environ. Res. 2012, 84:25-33.
20. Agridiotis V., Forster C.F., Carliell-Marquet C. Addition of Al and Fe salts during treatment of paper mill effluents to improve activated sludge settlement characteristics. Bioresour. Technol. 2007, 98:2926-2934.
21. De Gregorio C., Caravelli A.H., Zaritzky N.E. Performance and biological indicators of a laboratory scale activated sludge reactor with phosphate simultaneous precipitation as affected by ferric chloride addition. Chem. Eng. J. 2010, 165:607-616.
22. De Gregorio C., Caravelli A.H., Zaritzky N.E. Application of biological indices and a mathematical model for the detection of metal coagulant overload in a laboratory scale activated sludge reactor with phosphate simultaneous precipitation. Chem. Eng. J. 2011, 172:52-60.