Performance and bioparticle growth of anaerobic baffled reactor (ABR) fed with low-strength domestic sewage

Abstract

We investigated the performance of a 15.3 L capacity anaerobic baffled reactor (ABR) toward the treatment of low-strength domestic wastewater. The start-up period of the ABR was finished within approximately 130 days at a temperature below 25°C. The average COD_Cr in the effluent was 165 mg·L^-1, and the corresponding COD_Cr removal efficiency of the ABR was 52.3%. During the third stage (from day 130 to day 233) of ABR operation, the average COD_Cr in the effluent reached 71 mg·L^-1, which meets the secondary discharge requirement of the Integrated Wastewater Discharge Standard (GB 18918-2002, China). Moreover, partial microbial separation was observed along the five ABR compartments through scanning electron microscopic images. The geometric mean diameter of bioparticles in the five compartments increased from 0.050 mm to 0.111, 0.107, 0.104, 0.110, and 0.103 mm during the start-up stage. After operation for 179 days, the corresponding diameters further increased to 0.376, 0.225, 0.253, 0.239, and 0.288 mm, respectively. The fractal dimensions of the bioparticles indicated that these particles have smoother surfaces and more compact structures during ABR operation. Morphological analysis of the bioparticle sections demonstrated that the bioparticles have a pore volume of 30%–55%. The highest porosity was observed for the bioparticles in the second ABR compartment, whereas the lowest fractal dimension of bioparticle section was observed in the fifth compartment.

Keywords

anaerobic baffled reactor / low-strength domestic wastewater / start-up / bioparticles / morphology

References

[1] Barber W P, Stuckey D C. The use of the anaerobic baffled reactor (ABR) for wastewater treatment: a review. Water Research, 1999, 33(7): 1559–1578

[2] McCarty P L. One hundred years of anaerobic treatment digestion. In: Hughes D E, Stafford D A, Wheatley B I, Baader W, Lettinga G, Nyns E J, Verstraete W, Wentworth R L, editors. Anaerobic Digestion. Amsterdam: Elsevier Biomedical Press B.V., 1982, 3–21

[3] Sahinkaya E, Altun M, Bektas S, Komnitsas K. Bioreduction of Cr (VI) from acidic wastewaters in a sulfidogenic ABR. Minerals Engineering, 2012, 32: 38–44

[4] Feng H J, Hu L F, Mahmood Q, Qiu C D, Fang C R, Shen D S. Anaerobic domestic wastewater treatment with bamboo carrier anaerobic baffled reactor. International Biodeterioration & Biodegradation, 2008, 62(3): 232–238

[5] Garuti G, Giordan A, Pirozzi F. Full-scale ANANOX® system performance. Water S.A., 2001, 27(2): 189–197

[6] Dama P, Bell J, Foxon K M, Brouckaert C J, Huang T, Buckley C A, Naidoo V, Stuckey D C. Pilot-scale study of an anaerobic baffled reactor for the treatment of domestic wastewater. Water Science and Technology, 2002, 46(9): 263–270

[7] Liu D Y, Bi Y F, Li Q X, Guo L, Zhang Y, Liu X Q.Research on treatment of domestic-sewage by ABR reactor, Journal of Central China Normal University (Nat. SCI.), 2003, 37(4): 514–517(In Chinese)

[8] 8.Yang Q, Shang H T. The study on anaerobic baffled reactor treating municipal wastewater. China Biogas, 2006, 24(1): 9–14(In Chinese)

[9] Wang Y L, Lu J, Du B Y, Shi B Y, Wang D S. Fractal analysis of polyferric chloride-humic acid (PFC-HA) flocs in different topological spaces. Journal of Environmental Sciences-China, 2009, 21(1): 41–48

[10] Chu C P, Lee D J, Peng X F. Structure of conditioned sludge flocs. Water Research, 2004, 38(8): 2125–2134

[11] Johnson C P, Li X, Logan B E. Settling velocities of fractal aggregates. Environmental Science & Technology, 1996, 30(6): 1911–1918

[12] Bellouti M, Alves M M, Novais J M, Mota M. Flocs vs granules: differentiation by fractal dimesion. Water Research, 1997, 31(5): 1227–1231

[13] Li X Y, Yuan Y, Wang H W. Hydrodynamics of biological aggregates of different sludge ages: an insight into the mass transport mechanisms of bioaggregates. Environmental Science & Technology, 2003, 37(2): 292–299

[14] Li X Y, Leung R P. Determination of the fractal dimension of microbial flocs from the change in their size distribution after breakage. Environmental Science & Technology, 2005, 39(8): 2731–2735

[15] Xiao F, Yang S F, Li X Y. Physical and hydrodynamic properties of aerobic granules produced in sequencing batch reactors. Separation and Purification Technology, 2008, 63(3): 634–641

[16] Chu C P, Lee D J. Advective flow in a sludge floc. Journal of Colloid and Interface Science, 2004, 277(2): 387–395

[17] Yang Z, Peng X F, Chu C P, Lee D J. Image processing and geometric parameters extracted from sliced image of porous biomaterial. Advanced Powder Technology., 2007, 18(2): 187–213

[18] Chui H K, Fang H H. Histological analysis of microstructure of UASB granules. Journal of Environmental Engineering, 1994, 120(5): 1322–1326

[19] Chu C P, Lee D J. Effect of pre-hydrolysis on floc structure. Journal of Environmental Management, 2004, 71(3): 285–292

[20] Guo X S, Liu J X, Wei Y S, Li L. Sludge reduction with Tubificidae and the impact on the performance of the wastewater treatment process. Journal of Environmental Sciences-China, 2007, 19(3): 257–263

[21] Wang Y L, Dieude-Fauvel E, Dentel S K. Physical characteristics of conditioned anaerobic digested sludge—A fractal, transient and dynamic rheological viewpoint. Journal of Environmental Sciences-China, 2011, 23(8): 1266–1273

[22] Carson F L, Hladik C. H&E Staining. In: Fanucci A, Tanck E N, Moon T W, Weikersheimer J. editors. Histotechnology: A Self-Instructional Text. 3rd ed. Hong Kong: American Society for Clinical Pathology Press, 2009, 114–122

[23] Li X Y, Yuan Y. Settling velocities and permeabilities of microbial aggregates. Water Research, 2002, 36(12): 3110–3120

[24] Lalbahadur T, Pillay S, Rodda N, Smith M, Buckley C A, Holder F, Bux F, Foxon K M. Microbiological studies of an anaerobic baffled reactor: microbial community characterisation and deactivation of health-related indicator bacteria. Water Science and Technology, 2005, 51(10): 155–162

[25] Boopathy R, Tilche A. Pelletization of biomass in a hybrid anaerobic baffled reactor (HABR) treating acidified wastewater. Bioresource Technology, 1992, 40(2): 101–107

[26] Plumb J J, Bell J, Stuckey D C. Microbial populations associated with treatment of an industrial dye effluent in an anaerobic baffled reactor. Applied and Environmental Microbiology, 2001, 67(7): 3226–3235

[27] Lin Y, Yin J, Wang J, Tian W. Performance and microbial community in hybrid Anaerobic Baffled Reactor-constructed wetland for nitrobenzene wastewater. Bioresource Technology, 2012, 118: 128–135

[28] Rosa D R, Duarte I C S, Saavedra N K, Varesche M B, Zaiat M, Cammarota M C, Freire D M G. Performance and molecular evaluation of an anaerobic system with suspended biomass for treating wastewater with high fat content after enzymatic hydrolysis. Bioresource Technology, 2009, 100(24): 6170–6176

[29] O’Reilly J, Lee C, Chinalia F, Collins G, Mahony T, O’Flaherty V. Microbial community dynamics associated with biomass granulation in low-temperature (15°C) anaerobic wastewater treatment bioreactors. Bioresource Technology, 2010, 101(16): 6336–6344

[30] Uyanik S, Sallis P J, Anderson G K. The effect of polymer addition on granulation in an anaerobic baffled reactor (ABR). Part I: process performance. Water Research, 2002, 36(4): 933–943

[31] Witthauer D, Stuckey D C. Laboratory Studies on Anaerobic Processes to Treat Dilute Organic Water in Developing Countries. EAWAG Dubendorf, Switzerland: IRCWD, 1982

[32] Liu Y Q, Tay J H, Moy B Y P. Characteristics of aerobic granular sludge in a sequencing batch reactor with variable aeration. Applied Microbiology and Biotechnology, 2006, 71(5): 761–766

[33] Xiao F, Yang S F, Li X Y. Physical and hydrodynamic properties of aerobic granules produced in sequencing batch reactors. Separation and Purification Technology, 2008, 63(3): 634–641

[34] Zhang J J, Li X Y, Oh S E, Logan B E. Physical and hydrodynamic properties of flocs produced during biological hydrogen production. Biotechnology and Bioengineering, 2004, 88(7): 854–860

[35] Chung H Y, Lee D J. Porosity and interior structure of flocculated activated sludge floc. Journal of Colloid and Interface Science, 2003, 267(1): 136–143

Acknowledgements

This work was supported by the Fundamental Research Funds for the Central Universities (Nos. JC2011-1 and TD2010-5), Major projects on control and rectification of water body pollution (No. 2008ZX07314-006-02), the National Natural Science Foundation of China (Grant Nos. 51078035 and 21177010), and the Ph.D. Programs Foundation of the Ministry of Education of China (No. 20100014110004).Supplementary material is available in the online version of this article at http://dx.doi.org/10.1007/s11783-014-0638-0 and is accessible for authorized users.

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