Redefining BOD:COD ratio of pulp mill industrial wastewaters in BOD analysis by formulating a specific microbial seed

Kumar, Anil; Dhall, Purnima; Kumar, Ram

doi:10.1016/j.ibiod.2010.01.005

Cited by 39 publications

(17 citation statements)

References 12 publications

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“…The BOD test gives information about the oxygen demand of wastewater even though it is not specific to a certain pollutant (Pepper et al 1996;Kumar et al 2010). The BOD test has two stages of which the first, i.e.…”

Section: Bodmentioning

confidence: 99%

“…Lignin is one of the substances most difficult to degrade (Kumar et al 2010). For example, lignosulfonates are found to inhibit several biological systems, such as functions of enzymes, toxins and antibiotics and the chlorinated derivatives of lignin are poorly degraded by the conventional wastewater treatment processes (Farstad and Naess 1977;Sponza 2003).…”

Section: Ligninmentioning

confidence: 99%

See 1 more Smart Citation

Refractory organic pollutants and toxicity in pulp and paper mill wastewaters

Lindholm‐Lehto

Knuutinen

Ahkola

et al. 2015

Environ Sci Pollut Res

121

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Section: Bodmentioning

confidence: 99%

Section: Ligninmentioning

confidence: 99%

Refractory organic pollutants and toxicity in pulp and paper mill wastewaters

Lindholm‐Lehto

Knuutinen

Ahkola

et al. 2015

Environ Sci Pollut Res

121

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“…The oxygen used by the microorganism to degrade the organic matter is measured by the BOD5 and changes with time and concentration. Using microorganisms obtained directly from the process via isolation and acclimation improves the treatment (Kumar et al 2010). Prabu and Udayasoorian (2005) reported that white rot fungus that was isolated from soil samples, enriched by continuous pulp and paper mill effluent irrigation, and identified as P. chrysosporium, was capable of 79% COD reduction.…”

Section: Introductionmentioning

confidence: 99%

“…for which the results depend not only on the reaction but on the microorganisms involved (Kumar et al 2010). Pulp and paper effluents contain lignocellulosic biomass, which is composed of cellulose, hemicellulose, and lignin.…”

Section: Introductionmentioning

confidence: 99%

Microorganism Degradation Efficiency in BOD Analysis Formulating a Specific Microbial Consortium in a Pulp and Paper Mill Effluent

Ordaz-Díaz¹,

Rojas‐Contreras²,

Rutiaga-Quiñones³

et al. 2014

BioResources

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a Pulp and paper mills are a major source of pollution, generating huge amounts of intensely colored effluent that goes to the receiving end of a wastewater treatment plant. The biochemical oxygen demand test (BOD5) relies heavily on the microorganism metabolic capability added to the test as seeding material. The seeding material in the testing is obtained from sewage sampling or from commercial sources. Specific organic pollutants that are present in paper and pulp mill effluent can only be degraded by specific microbes; therefore, common sewage or synthetic seed may lead to erroneous BOD5 estimations. In this study, specific microbial species were selected to evaluate their degradation efficiency, both individually and in combination. The microorganisms selected in the formulated seed exhibit BOD5 in a reproducible and synergistic manner. The formulation of this specific microbial consortium can be used to develop bioremediation strategies.

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“…Also, the ratio BOD 5 :COD was computed as a proxy of wastewater biodegradability. As a reference value, an ideal biodegradability index is a BOD 5 :COD ratio close to 1.0 [19]. Four replicates per water sample were done for all wastewater parameters and the average values of the replicates were used for further analyses.…”

Section: Methodsmentioning

confidence: 99%

Monitoring Urban Wastewaters’ Characteristics by Visible and Short Wave Near-Infrared Spectroscopy

Melendez-Pastor

Candel

Pedreño

et al. 2013

Water

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On-line monitoring of wastewater parameters is a major scientific and technical challenge because of the great variability of wastewater characteristics and the extreme physical-chemical conditions that endure the sensors. Wastewater treatment plant managers require fast and reliable information about the input sewage and the operation of the different treatment stages. There is a great need for the development of sensors for the continuous monitoring of wastewater parameters. In this sense, several optical systems have been evaluated. This article presents an experimental laboratory-based approach to quantify commonly employed urban wastewater parameters, namely biochemical oxygen demand in five days (BOD 5 ), chemical oxygen demand (COD), total suspended solids (TSS), and the ratio BOD 5 :COD, with a visible and short wave near infrared (V/SW-NIR) spectrometer (400-1000 nm). Partial least square regression (PLSR) models were developed in order to quantify the wastewater parameters with the recorded spectra. PLSR models were developed for the full spectral range and also for the visible and near infrared spectral ranges separately. Good PLSR models were obtained with the visible spectral range for BOD 5 (RER = 9.64), COD (RER = 10.88), and with the full spectral range for the TSS (RER = 9.67). The results of this study show that V/SW-NIR spectroscopy is a suitable technique for on-line monitoring of wastewater parameters.

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Redefining BOD:COD ratio of pulp mill industrial wastewaters in BOD analysis by formulating a specific microbial seed

Cited by 39 publications

References 12 publications

Refractory organic pollutants and toxicity in pulp and paper mill wastewaters

Refractory organic pollutants and toxicity in pulp and paper mill wastewaters

Microorganism Degradation Efficiency in BOD Analysis Formulating a Specific Microbial Consortium in a Pulp and Paper Mill Effluent

Monitoring Urban Wastewaters’ Characteristics by Visible and Short Wave Near-Infrared Spectroscopy

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