Changes in the organic character of post-coagulated Pinus radiata sulfite pulp mill wastewater under aerated stabilization basin treatment—A laboratory scale study

Lewis, Rosmala; Leeuwen, John van; Smernik, Ronald J.; Chow, Christopher W.K.; Everson, Andrew; Nothrop, Steven; Beecham, Simon

doi:10.1016/j.cej.2011.09.089

Cited by 16 publications

(5 citation statements)

References 26 publications

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“…These reductions indicate that removal or structural change of aromatic compounds and lignin-derived substances occurred during the biological treatment. Our results agree with previous reports (Zimmermann 1990;Pandila 1973;Lewis et al 2011) in which up to 13% to 35% of lignin-related compounds were removed by microbiological treatment. When compared with the removal efficiency of COD cr and BOD 5 , the reductions of aromatic compounds are relatively lower after biological treatment.…”

Section: Uv-vis Spectroscopysupporting

confidence: 83%

Effect of Biological Treatment on Characteristics of Soluble Organic Compounds in Hardwood KP Bleaching Effluent

Lei

Saiyan

2013

BioResources

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Hardwood KP bleaching effluents, before (influent) and after (effluent) biological treatment, were characterized and compared to identify the main bio-recalcitrant organic compounds in the effluent. The results indicate that biological treatment reduces COD cr and BOD 5 by 67% and 88%, respectively. However, various bio-recalcitrant organic compounds were still retained in the biologically-treated effluent, which exhibits an increase in effluent color. Spectroscopic analysis suggests that colored substances are the most recalcitrant materials in the effluent. Di-n-octyl phthalate and 6,6'-di-tert-butyl-2,2'-methylenedi-p-cresol are the predominant residual materials in the biologically treated effluent. These two materials are the main recalcitrant organic compounds in the effluent and contribute to the major part of the residual COD cr in the biologically treated effluent.

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Section: Uv-vis Spectroscopysupporting

confidence: 83%

Effect of Biological Treatment on Characteristics of Soluble Organic Compounds in Hardwood KP Bleaching Effluent

Lei

Saiyan

2013

BioResources

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“…This has been related to the polycondensation-adsorption of lignin structures, which would occur simultaneously with a mechanism of filterable colour formation due to the biochemical oxidation of some functional groups of lignin [28]. Other authors have argued that, during treatment, the organic matter that is not removed through biodegradation can be modified for chromophoric units instead of mineralized and, consequently, leads to an increase in the level of colour [20,29].…”

Section: Arrangement Of Spongy Supportmentioning

confidence: 99%

Evaluation of aerated lagoon modified with spongy support medium treating Kraft pulp mill effluent

Peitz

Xavier

2019

Rev.Fac.Ing.Univ.Antioquia

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The pulp industry generates high effluent flows, which contain high chemical oxygen demand (COD), biochemical oxygen demand (BOD5), colour and ecotoxicity. This study aimed to evaluate the treatment of Kraft pulp effluent by aerated lagoon modified with sponge support media (APG). It was assessed the arrangement of the support media in the aerated lagoons in the organic load rate (OLR) of 0.2 kgCOD m-3 d-1, and after that, with OLR variation from 0.2 to 1.2 kgCOD m-3 d-1. The parameters evaluated were BOD5, COD, colour, lignin derivatives, total phenolic compounds and acute ecotoxicity in D. magna. COD and BOD5 removals were 32% and 88%, respectively, for free and confined support media in 0.2 kgCOD m-3 d-1. There was no colour or total phenolic compounds removal under these conditions. Considering the treatment in which there was a variation of the organic load rate, 1.2 kgCOD m-3 d-1 had the best performance. In this case, 50% and 75% of COD and BOD5 were removed, respectively. Removal of colour, total phenolic compounds and lignin derivatives were around 20%, 18% and 10%, respectively. The acute ecotoxicity was reduced to toxicity factor equal to 1 in all treatments. Comparing the aerated lagoon modified systems with those without the APG, it was suggested to apply spongy support in higher organic load rate than these typically used in aerated lagoons.

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“…HMW material can be removed by coagulation, more efficiently than LMW compounds and expected to minimize formation of colored material when used prior to anaerobic sludge bed (ASB) reactor treatment (Matilainen et al 2010). However, the unremoved compounds cause increased color formation during the ASB treatment (Lewis et al 2011). The amount of colored material increases due to conversion of organic material into smaller chromatographic units instead of mineralization or removal of organic matter during the biological treatment (Tuomela et al 2000;Lewis et al 2013).…”

Section: Colormentioning

confidence: 99%

Refractory organic pollutants and toxicity in pulp and paper mill wastewaters

Lindholm‐Lehto

Knuutinen

Ahkola

et al. 2015

Environ Sci Pollut Res

137

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Changes in the organic character of post-coagulated Pinus radiata sulfite pulp mill wastewater under aerated stabilization basin treatment—A laboratory scale study

Cited by 16 publications

References 26 publications

Effect of Biological Treatment on Characteristics of Soluble Organic Compounds in Hardwood KP Bleaching Effluent

Effect of Biological Treatment on Characteristics of Soluble Organic Compounds in Hardwood KP Bleaching Effluent

Evaluation of aerated lagoon modified with spongy support medium treating Kraft pulp mill effluent

Refractory organic pollutants and toxicity in pulp and paper mill wastewaters

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