Treatment of Sugar Industry Wastewater in Anaerobic Downflow Stationary Fixed Film (DSFF) Reactor

Pradeep, N. V.; Anupama, S; Kumar, Jai; Vidyashree, K. G.; Lakshmi, P.; Ankitha, K.; Pooja, J.

doi:10.1007/s12355-013-0227-8

Cited by 21 publications

(8 citation statements)

References 25 publications

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“…Industrial wastewaters associated with the manufacture of halogenated organics characteristically have concentrations as high as hundreds of mg/L (Annachatre and Gheewala 1996). Water pollution by organic and inorganic compounds is of great public concern (Pradeep et al 2014). Their fate in the environment is of great importance as they are toxic, recalcitrant and bioaccumulating in organisms (Annachatre and Gheewala 1996).…”

Section: Introductionmentioning

confidence: 99%

Biological removal of phenol from wastewaters: a mini review

Pradeep¹,

Anupama²,

Navya³

et al. 2014

Appl Water Sci

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176

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Phenol and its derivatives are common water pollutants and include wide variety of organic chemicals. Phenol poisoning can occur by skin absorption, inhalation, ingestion and various other methods which can result in health effects. High exposures to phenol may be fatal to human beings. Accumulation of phenol creates toxicity both for flora and fauna. Therefore, removal of phenol is crucial to perpetuate the environment and individual. Among various treatment methods available for removal of phenols, biodegradation is environmental friendly. Biological methods are gaining importance as they convert the wastes into harmless end products. The present work focuses on assessment of biological removal (biodegradation) of phenol. Various factors influence the efficiency of biodegradation of phenol such as ability of the microorganism, enzymes involved, the mechanism of degradation and influencing factors. This study describes about the sources of phenol, adverse effects on the environment, microorganisms involved in the biodegradation (aerobic and anaerobic) and enzymes that polymerize phenol.

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Section: Introductionmentioning

confidence: 99%

Biological removal of phenol from wastewaters: a mini review

Pradeep¹,

Anupama²,

Navya³

et al. 2014

Appl Water Sci

Self Cite

176

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“…Recently, Nájera-Aguilar et al [19] reported the application of ARFB tech The average COD removal efficiency achieved with the full-scale ARFB 1 -ARFB 2 system is higher or comparable to those reported by laboratory-scale studies with biological processes and the same kind of wastewater. For example, Hampannavar and Shivayogimath [3] reported an average COD removal of 89%, and Pradeep et al [9] achieved a reduction of 79%. Additionally, for coupled systems, the removal efficiencies have been below 95%, according to Fito et al [33].…”

Section: Start-up and Operation Of The (Arfb 1 -Arfb 2 ) Serial Systemmentioning

confidence: 99%

“…Considering the high organic load and BI of SMW, both aerobic and anaerobic biological processes have been used for treatment. Among laboratory-scale studies, noteworthy anaerobic reports by Pradeep et al [9], Hampannavar and Shivayogimath [3], and Cruz-Salomón et al [10] who achieved a high COD reduction of 81.8%, 89%, and 74%, respectively. On the other hand, the study reported by Hamoda and Al-Sharekh [11], who evaluated an aerated fixed-film biological system, reached COD removal of 67.8%.…”

Section: Introductionmentioning

confidence: 99%

Novel Treatment of Sugar Mill Wastewater in a Coupled System of Aged Refuse Filled Bioreactors (ARFB): Full-Scale

et al. 2021

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Sugar is the most important food supplement of our daily diet. During the production, sugar mills use a large volume of water and produce a significant amount of wastewater polluted with high organic compounds. Therefore, it is necessary to treat the wastewater before their disposal. For this reason, this article presents the results obtained from the monitoring of a coupled system of aged refuse filled bioreactors (ARFB) in full scale to treat wastewater from a sugar mill. The coupled system consists of two bioreactors (a primary one -ARFB1- and a rectification one -ARFB2-) arranged in a series with identical geometries. The ARFB1-ARFB2 system was evaluated in two stages. The first stage (maintenance period) for 28 weeks, and second stage (Zafra season) for 29 weeks. The system was fed with sugar mill wastewater (SMW) with a chemical oxygen demand (COD) of 2787 ± 1552 mg/L and 2601 ± 722 mg/L, respectively. As results, we observed a rapid stabilization of the system over 2 months. In addition, we found the ARFB1-ARFB2 system achieved an average COD removal of 94.9%, with a final effluent (E2) concentration below the maximum permissible limits of Mexican and international regulations for all analyzed parameters. Finally, the results of this study show that the ARFB1-ARFB2 full-scale novel technology is an efficient process for removal of the main contaminants that affect the wastewater from the sugar mills.

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“…The anode chamber was completely sealed by gaskets to create a completely anaerobic condition. The fuel used for this chamber was synthetic sugar wastewater (Pradeed et al, 2014). The anode chamber was filled with 600 mL of synthetic sugar (Madani et al, 2015) and it was aired continuously by an aquarium pump.…”

Section: Mfc Construction and Operationmentioning

confidence: 99%

INFLUENCE OF EXTERNAL RESISTANCE AND ANODIC pH ON POWER DENSITY IN MICROBIAL FUEL CELL OPERATED WITH B. SUBTILIS BSC-2 STRAIN

Córdova‐Bautista¹

2018

Appl. Ecol. Env. Res.

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Microbial fuel cells (MFCs) are bioelectrochemical devices able to convert chemical energy into electricity. The selection of anodic pH and external resistances play a significant role in the overall performance of the device. This research presents the effect of operational conditions of the MFC using B. Subtilis in anode. The effect of pH and external resistance were determined by 3 2 full factorial design. Data were analyzed statistically by ANOVA and p ≤ 0.05 was considered statistically significant. The surface response analysis evidenced interaction and quadratic effect of the pH and external resistance on the power density generation. With a second-order polynomial model the optimum conditions of the system were determined. It maximized the power at pH of 8.6 and an external resistance of 220 Ω, delivering power density of 405 mW/m 2 . The chemical oxygen demand (COD) removal efficiency and coulombic efficiency (CE) were 82% and 15%, respectively. The maximum specific growth (µ) and substrate uptake (k 1 ) rate for electrochemically active bacteria (EAB) at optimum conditions were 0.19/h and 0.019/h respectively. These experimental results show the importance of the simultaneous effect of pH and external resistance, which is even more influential then if they were studied separately.

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Treatment of Sugar Industry Wastewater in Anaerobic Downflow Stationary Fixed Film (DSFF) Reactor

Cited by 21 publications

References 25 publications

Biological removal of phenol from wastewaters: a mini review

Biological removal of phenol from wastewaters: a mini review

Novel Treatment of Sugar Mill Wastewater in a Coupled System of Aged Refuse Filled Bioreactors (ARFB): Full-Scale

INFLUENCE OF EXTERNAL RESISTANCE AND ANODIC pH ON POWER DENSITY IN MICROBIAL FUEL CELL OPERATED WITH B. SUBTILIS BSC-2 STRAIN

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