Optimization of biological treatment of paper mill effluent in a sequencing batch reactor

Tsang, Yiu Fai; Hua, F. L.; Chua, H.; Sin, S. N.; Wang, Y.J.

doi:10.1016/j.bej.2006.12.004

Cited by 74 publications

(36 citation statements)

References 23 publications

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“…to reduce BOD5 (80%). Furthermore, Buzzini et al (2005) used prokaryotes from the family Archae to reduce BOD5 (84%), and Tsang et al (2007) used Neocardia amarae to remove 94% of BOD5. Nagarathnama and Bajpai (1999) successfully treated kraft mill effluent using Rhizopus oryzae, which removed 50% of COD.…”

Section: Microbial Treatment Of Effluentmentioning

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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Section: Microbial Treatment Of Effluentmentioning

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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“…Previous studies had shown that the minimum of Mixed Liquor Suspended Solids (MLSS) in the activated sludge process for paper mill effluent treatment is 2000-2500 mg L -1 [1]. Tsang et al [2] showed that a higher concentration of MLSS promoted activated sludge performance in organic parameters removal, however the improvement of COD removal efficiency from increasing MLSS was limited within a certain range.…”

Section: Resultsmentioning

confidence: 99%

“…The pulp and paper industry is considered to be a serious environmental hazard due to the multiplicity of impurities to the complexity of the chemical structures present and to the significant quantities of wastewater generated [1,2]. This industry sector discharges large volumes of brown colored effluents as a result of the different processes applied in wood and pulp bleaching, generating diverse pollutants [3,4].…”

Section: Introductionmentioning

confidence: 99%

Identification of Microbiota for Activated Sludge Acclimated By Paper Mill Effluent Kraft E1 Bioremediation

Cordi¹,

Assalin²,

Ponezi³

2012

J Bioremed Biodeg

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Conventional systems treating paper effluents and cellulose are quite efficient in the reduction of Chemical Oxygen Demand (COD) and Biochemical Oxygen Demand (BOD). In general, there is primary stage clarification followed by secondary treatment, usually with a biological system (activated sludge). However, for the efficient degradation of some organic compounds in this effluent, adapted microorganism accomplish the treatment which are necessary resulting in effluents with low concentrations of recalcitrant compounds. There are two methods for microorganism acclimation: genes cloning or natural.In this work, the original biomass collected from a domestic sewage treatment plant was adapted for application in the bioremediation of paper mill effluent, Kraft E 1 . So, the aim of this work was verifying the correlation of protozoa organisms and physical-chemical parameters during the acclimation period.The acclimation of the biomass was verified mainly through the reduction of COD. The monitoring of biomass growth was followed by measurement of suspended solids and volatile suspended solids. Parameters such as pH, Dissolved Oxygen (DO) and temperature were also monitored daily. The biological study was accomplished microscopically through the identification of protozoa that are considered bioindicators of the activated sludge system. The biomass acclimation period was 39 days. The stabilization of the system was observed through constant rates of total COD (56%). The suspended solids at the beginning of the acclimation phase were from 1580 mg L -¹ to 3580 mg L -¹, indicating biomass growth. A small acclimation period was necessary to observe the diversity of protozoa, mainly free ciliates, but nematodes were also present, indicating poor sludge sediment. At the end of the acclimation phase predominantly rotifers, but some free ciliates, ciliated communities and fixed ciliated were observed, indicating a good purification capacity of the system. Within the organisms amoeba was observed and this indicates good quality to the final effluent. Then, it is possible to correlate the biota presence with the high capacity of COD removal from the activated sludge system. Journal of Bioremediation & Biodegradation

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“…A number of factors, such as the type of organic substrate, the loading rate, aeration intensity, and hydraulic washing rate, influence the sludge evolution process (Tsang et al 2007). As the sludge matured, the bioreactor's resistance and resilience enhanced, while the temporal variability faded depending on the influence and the operation parameters, leading to system stability.…”

Section: Treatment Efficiency Of the Sbr Reactormentioning

confidence: 99%

Microbial dynamics in a sequencing batch reactor treating alkaline peroxide mechanical pulp and paper process wastewater

Zhan

Chen

et al. 2010

Environ Sci Pollut Res

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Optimization of biological treatment of paper mill effluent in a sequencing batch reactor

Cited by 74 publications

References 23 publications

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

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

Identification of Microbiota for Activated Sludge Acclimated By Paper Mill Effluent Kraft E1 Bioremediation

Microbial dynamics in a sequencing batch reactor treating alkaline peroxide mechanical pulp and paper process wastewater

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