Assessment of coagulated and non-coagulated ASB performance used to treat Pinus radiata sulfite pulp and paper mill effluent by resin fractionation and HPSEC techniques

Lewis, Rosmala; Leeuwen, John van; Chow, Christopher W.K.; Everson, Andrew; Lewis, David M.

doi:10.1016/j.cej.2012.09.088

Cited by 11 publications

(2 citation statements)

References 31 publications

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“…In this case, there were removals of 28 and 32% in lagoons AL(A) and AL(B), respectively. Still, in both systems, the increase in colour was inferior to other ALs, in which colour increased 90% in HRT of 28 days [27]. 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].…”

Section: Arrangement Of Spongy Supportmentioning

confidence: 77%

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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Section: Arrangement Of Spongy Supportmentioning

confidence: 77%

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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“…13 Recently, high-performance size exclusion chromatography (HPSEC) has received increasing attention because it can determine M w efficiently due to its simple operation. 14,15 This technique separates NOM constituents based on different retention times of varied molecular weight in the porous solid phase. Wang et al found that HPSEC had good correlation to resin adsorption of chemical fractionation.…”

Section: Introductionmentioning

confidence: 99%

Organic removal assessment at full-scale treatment facilities using advanced organic characterization tools

Jiao

Chow

et al. 2014

Environ. Sci.: Processes Impacts

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The character of dissolved organic matter (DOM) in source water determines its treatability in drinking water treatment. In order to understand and improve drinking water treatment process operations, advanced characterization tools, three-dimensional excitation emission matrix technology (3D-EEM) and highperformance size exclusion chromatography (HPSEC), have been used. The DOM characteristics in both source and treated waters from 52 full-scale drinking water treatment plants of 23 cities in China were investigated. The dissolved organic carbon (DOC) concentration was similar as compared with other countries; however, differences in the compositions of DOM between Chinese water sources and those of other countries were observed. The assessment confirmed that the origin of DOM is the key factor influencing its removal. Source water with the lowest anthropogenic source had the best DOC removal.According to the principal component analysis result of DOM characteristics, the source waters were found to be divided into two groups based on geographic location. Source waters in the east, north and center of China where there are larger populations tend to cluster together; while those of the southwest, northwest and south of China tend to cluster together. These densely populated areas in China should face a bigger challenge of DOC removal during drinking water treatment. Moreover, it was concluded that more attention should be paid to advanced coagulation or hybrid treatment in the actual water treatment train because of the significant increase of the middle molecular weight fraction (1000-2000 Da) after coagulation treatment. Environmental impactThe existence of dissolved organic matter (DOM) in drinking water treatment processes raises many issues. Therefore, the assessment and control of DOM are two of the major issues for securing drinking water safety. The characteristics of DOM, including the concentration, chemical property (composition) and physical property (molecular weight distribution), in both source and treated waters from 52 full-scale drinking water treatment plants of 23 cities in China were revealed for the rst time, and the key factors of the numerous parameters which inuence DOM removal were revealed. Moreover, according to the source water characteristics, various areas of China were grouped.

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Profiling Olive Oil Mill Wastewater by Resin Fractionation: Effect of Acid Cracking, Coagulation, Electrocoagulation, and Fenton's Reagent

Haksevenler

Arslan-Alaton

2014

CLEAN Soil Air Water

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The organic matter content in original and chemically treated olive oil mill wastewater obtained from a three phase extraction plant was profiled by a resin fractionation procedure to evaluate changes in its characteristics after acid cracking as well as chemical treatment by FeCl3 coagulation, electrocoagulation with stainless steel electrodes, and an advanced oxidation processes (Fenton's reagent). For this purpose, untreated, acid‐cracked, and chemically treated wastewater samples were fractionated into hydrophobic and hydrophilic (acid–base–neutral) structures using XAD‐8, XAD‐4, AG‐MP‐50, and Duolite A‐7 resins. Structural distribution analysis of the untreated samples indicated that hydrophobic structures were the major (75–95%) components of the wastewater's organic matter content. For the total phenols parameter, a significant fraction (56%) appeared to be hydrophobic neutral coinciding with the acute toxicity of the olive oil mill wastewater. A significant amount of oil and grease as well as particulate organic matter could be removed by subjecting the original wastewater sample to acid cracking. FeCl3 coagulation appeared to be effective in the removal of hydrophobic fractions whereas electrocoagulation and the Fenton's reagent were also effective in the removal of hydrophilic organic matter. After chemical treatment of the olive oil mill wastewater, a significant shift in its structural distribution pattern was observed from mainly hydrophobic to more hydrophilic fractions.

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Assessment of coagulated and non-coagulated ASB performance used to treat Pinus radiata sulfite pulp and paper mill effluent by resin fractionation and HPSEC techniques

Cited by 11 publications

References 31 publications

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

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

Organic removal assessment at full-scale treatment facilities using advanced organic characterization tools

Profiling Olive Oil Mill Wastewater by Resin Fractionation: Effect of Acid Cracking, Coagulation, Electrocoagulation, and Fenton's Reagent

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