Influence of hydraulic retention time in a two-phase upflow anaerobic sludge blanket reactor treating textile dyeing effluent using sago effluent as the co-substrate

Senthilkumar, M.; Gnanapragasam, G.; Arutchelvan, V.; Nagarajan, S.

doi:10.1007/s11356-010-0409-9

Cited by 17 publications

(8 citation statements)

References 14 publications

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“…VFA production is expressed with the production of acetic acid, propionic acid, and butyric acid. Although the VFA production was highest at pH 5.0, but high production of propionic acid, if the amount is greater than 1500 mg/L, its presence will disrupt next stage (methanogenesis) (Senthilkumar et al, 2010). Thus, the highest VFA production are at pH 6 but considering the VS and COD reduction (Figure 7), then the VFA production is best at pH 5.5.…”

Section: Effect Of Phmentioning

confidence: 97%

“…Effect of HRT reduction on microbial growth is described by the change of VSS concentration in the fermenter. Metabolism and growth of microbial are also highly dependent on the pH and alkalinity (SenthilKumar 2010;Schmit & Ellis, 2001). Figure 4 shows VSS profile simultaneously with the pH and alkalinity during the process.…”

Section: Effect Of Hydraulics Retention Time (Hrt)mentioning

confidence: 99%

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Acidogenesis of Palm Oil Mill Effluent to Produce Biogas: Effect of Hydraulic Retention Time and pH

Trisakti

Manalu

Taslim

et al. 2015

Procedia - Social and Behavioral Sciences

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Acidogenesis of palm oil mill effluent to produce biogas was conducted base on anaerobic digestion process. This process was consisted of four different stages using various types of microorganisms which came from various groups of bacteria. This research studied the effect of hydraulic retention time (HRT) and pH to the change of the organic compounds concentration and solids content of POME to the growth of microorganisms during acidogenesis stage. Initially, the suitable loading up was determined by varying the HRT 6.7; 5.0; and 4.0 days in the continuous stirred tank reactor (CSTR) with mixing rate 50 rpm, pH 6.0 ± 0.2, and room temperature. Next, suitable pH was determined by varying the pH at 5.0; 5.5; and 6.0 with mixing rate 100-110 rpm and temperature 55 o C. Analysis of TS, VS, TSS, VSS, COD, and VFA were conducted in order to study the growth of microorganisms and their abilities in converting organic compound to produce VFA. The highest growth of microorganisms was achieved at HRT 4.0 day with microorganism concentration was 20.62 mg VSS/L and COD reduction was 15.7%. The highest production of total VFA achieved was 5622.72 mg/L at pH 6.0, with the concentration of acetic acid, propionic acid and butyric acid were 2257.34; 975.49; and 2389.90 mg/L, respectively. While degradation VS and COD were 11 and 23%, respectively.

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Section: Effect Of Phmentioning

confidence: 97%

Section: Effect Of Hydraulics Retention Time (Hrt)mentioning

confidence: 99%

Acidogenesis of Palm Oil Mill Effluent to Produce Biogas: Effect of Hydraulic Retention Time and pH

Trisakti

Manalu

Taslim

et al. 2015

Procedia - Social and Behavioral Sciences

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“…These studies have illustrated the potential advantages of two-phase AD over single-phase systems when treating complex substances, e.g. shorter retention time, higher gas conversion efficiency and higher methane concentration in the produced gas (Bouallagui et al 2005;Demirer and Chen 2005;SenthilKumar et al 2011;Yu et al 2002). Furthermore, on one hand, it may allow a reduction in total reactor volume (Demirel and Yenigün 2002;Ince 1998), and on the other hand, co-digestion alleviates the inhibitory effect caused by high fat concentrations (Yang et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Two-phase anaerobic co-digestion of used vegetable oils’ wastes and pig manure

Hidalgo

Gómez

Martín-Marroquín

et al. 2014

Int. J. Environ. Sci. Technol.

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The purpose of this work was to study the anaerobic co-digestion of all the by-products generated during the processing of used vegetable oils (UVO) with the objective of proposing a solution for the treatment of these wastes. More specifically, this study investigates the advantages of two-phase anaerobic digestion for treating a mixture (1/5 v/v) of UVO processing wastes (OW) and pig manure (PM) using two semi-continuous digesters operated at mesophilic temperature (37 ± 1°C). The experiments were conducted at hydraulic retention time (HRT) of 0.5, 1, 2 and 4 days in the first stage (acidifier) and at HRT of 11.5, 15, 18 and 20 days in the second stage (methaniser). The results revealed that the HRT had a high influence on the soluble chemical oxygen demand (sCOD) and total dissolved solids (TDS) removal. The maximum total sCOD removal efficiency of 86.4 % and TDS removal efficiency of 81.9 % was achieved at 20 days of global HRT. The maximum biogas production of 0.65 m 3 per kilogramme of volatile dissolved solids (VDS) was removed, corresponding to a methane production of 0.42 m 3 CH 4 kg -1 . VDS removed (65 % CH 4 ) was also achieved at 20 days of HRT. The two-phase digestion system showed good stability, which was mainly attributed to the strong buffering capacity with the two-phase system and the high alkalinity from PM when co-digested with OW. The results obtained from this study provide fundamental information for scaling up a high-performance two-phase anaerobic system in the future.

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“…Zou (2015) recently developed a hybrid method combining ozonation, activated carbon, and biological aerated filter (BAF) for the advanced treatment of dyeing wastewater for reuse, despite the high cost for ozonation. In comparison, the biological approaches to treat dyeing wastewater were reported successful by employing anaerobic/aerobic (Brown and Hamburger 1987;Shaw et al 2002;Amaral et al 2014), facultative anaerobic (Li and Xi 2004), and anaerobic (Senthilkumar et al 2011) processes to remove aromatic amines formed from the azo-bond dyestuff. The aerobic sludge granules highly concentrated with microorganisms (Kolekar et al 2012), the redox mediator (Rios-Del Toro et al 2013), and the PVA immobilization media (Chen et al 2003) had been applied for the removal of color from dyeing wastewater.…”

Section: Introductionmentioning

confidence: 99%

Enhanced bioremoval of refractory compounds from dyeing wastewater using optimized sequential anaerobic/aerobic process

Bae

Han

Kim

et al. 2016

Int. J. Environ. Sci. Technol.

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The upflow anaerobic sludge blanket process followed by the biological aerated filter process was employed to improve the removal of color and recalcitrant compounds from real dyeing wastewater. The highest removal efficiency for color was observed in the anaerobic process, at 8-h hydraulic retention time, seeded with the sludge granule. In the subsequent aerobic process packed with the microbe-immobilized polyethylene glycol media, the removal efficiency for chemical oxygen demand increased significantly to 75 %, regardless of the empty bed contact time. The average influent non-biodegradable soluble chemical oxygen demand was 517 mg/L, and the average concentration in effluent from the anaerobic reactor was 363 mg/L, suggesting the removal of some recalcitrant matters together with the degradable ones. The average nonbiodegradable soluble chemical oxygen demand in effluent from the aerobic reactor was 87, 93, and 118 mg/L, with the removal efficiency of 76, 74, and 67 %, at 24-, 12-, and 8-h empty bed contact time, respectively. The combined anaerobic sludge blanket and aerobic cell-entrapped process was effective to remove the refractory compounds from real dyeing wastewater as well as in reducing organic loading to meet the effluent discharge limits. This integrated process is considered an effective and economical treatment technology for dyeing wastewater.

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Influence of hydraulic retention time in a two-phase upflow anaerobic sludge blanket reactor treating textile dyeing effluent using sago effluent as the co-substrate

Abstract: The biphasic UASB reactor could be a very feasible alternative, cost-effective, eco-friendly and sustainable treatment system for textile dyeing effluent with sago effluent as a co-substrate.

Cited by 17 publications

References 14 publications

Acidogenesis of Palm Oil Mill Effluent to Produce Biogas: Effect of Hydraulic Retention Time and pH

Acidogenesis of Palm Oil Mill Effluent to Produce Biogas: Effect of Hydraulic Retention Time and pH

Two-phase anaerobic co-digestion of used vegetable oils’ wastes and pig manure

Enhanced bioremoval of refractory compounds from dyeing wastewater using optimized sequential anaerobic/aerobic process

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