+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Treatment of low strength complex wastewater using an anaerobic baffled reactor (ABR)

Treatment of low strength complex wastewater using an anaerobic baffled reactor (ABR)

Bioresource Technology 99(17): 8193-8200

Treatment of a low strength complex wastewater of chemical oxygen demand (COD) around 500mg/L was studied in a 10L capacity laboratory scale anaerobic baffled reactor (ABR). It was operated at hydraulic retention times (HRTs) of 20, 15, 10, 8 and 6h. Corresponding organic loading rates (OLRs) were 0.6, 0.8, 1.2, 1.5 and 2kg COD/m3d. At every HRT (or OLR), pseudo steady state (PSS) was achieved. Even at maximum OLR of 2kg COD/m3d, COD and biochemical oxygen demand (BOD) removals exceeded 88%. Removal of particulate fraction of organics was found to be greater than soluble fraction. Compartment-wise studies of various parameters revealed that if the OLR was larger, the number of initial compartments played significant role in the removal of organics. The values of volatile fatty acids (VFA) demonstrated that hydrolysis and acidogenesis were the main biochemical activities in the initial few compartments. Based on the tracer studies, dead space in the ABR was found to range from 23% to 34%. The flow pattern in the ABR was classified as intermediate between plug flow and perfectly mixed flows. Observations from scanning electron micrographs (SEM) also suggested that distinct phase separation takes place in an ABR. Study of organic and hydraulic shock loads revealed that ABR was capable of sustaining the type of shock loads generally experienced at a sewage treatment plant (STP).

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 024007578

Download citation: RISBibTeXText

PMID: 18455391

DOI: 10.1016/j.biortech.2008.03.016

Related references

Low-strength wastewater treatment using an anaerobic baffled reactor. Water Environment Research 74(2): 170-176, 2002

Treatment of low-strength soluble wastewater using an anaerobic baffled reactor (ABR). Journal of Environmental Management 90(1): 166-176, 2007

Anaerobic digestion of high strength molasses wastewater using hybrid anaerobic baffled reactor. Water Research. 25(7): 785-790, 1991

Anaerobic domestic wastewater treatment with bamboo carrier anaerobic baffled reactor. International Biodeterioration & Biodegradation: 3, 232-238, 2008

The use of the anaerobic baffled reactor (ABR) for wastewater treatment: A review. Water Research 33(7): 1559-1578, 1999

Performance of an anaerobic baffled reactor and hybrid constructed wetland treating high-strength wastewater in NepalaA model for DEWATS. 2009

Performance of an Anaerobic Baffled Reactor (ABR) in treatment of cassava wastewater. Brazilian Journal of Microbiology 40(1): 48-53, 2009

Hybrid anaerobic baffled reactor for treatment of desizing wastewater. International Journal Of Environmental Science And Technology: 1, 111-118, 2010

A modified anaerobic baffled reactor for municipal wastewater treatment. Journal of Environmental Management 90(8): 2488-2493, 2009

Treatment of dilute wastewater using an anaerobic baffled reactor: Effect of low temperature. Water Research 34(15): 3867-3875, October, 2000

Comparison of startup and anaerobic wastewater treatment in UASB, hybrid and baffled reactor. Bioprocess Engineering 21(5): 439-445, 1999

Pilot-scale study of an anaerobic baffled reactor for the treatment of domestic wastewater. Water Science and Technology 46(9): 263-270, 2002

Hydraulic characteristics of an anaerobic baffled reactor as onsite wastewater treatment system. Journal of Environmental Sciences 22(9): 1319-1326, 2011

Experiment study on the metamorphic amylum production wastewater treatment by anaerobic baffled reactor. Huan Jing Ke Xue= Huanjing Kexue 29(11): 3081-3086, 2009

Treatment of domestic wastewater using an anaerobic baffled reactor followed by a duckweed pond for agricultural purposes. Environment Systems and Decisions 29(3): 270-279, 2009