Additive and additive-free treatment technologies for pulp and paper mill effluents: Advances, challenges and opportunities

Kamali, Mohammadreza; Alavi-Borazjani, Seyedeh Azadeh; Khodaparast, Zahra; Khalaj, Mohammadreza; Jahanshahi, Akram; Costa, Maria Elisabete V.

doi:10.1016/j.wri.2019.100109

Cited by 39 publications

(14 citation statements)

References 141 publications

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“…The as-obtained effluents derived from raw materials and production processes inevitably have a high chemical oxygen demand (COD) and low biodegradability properties, which usually consists of >200 organic compounds and total organic and inorganic species of approximately 700 [5,6]. Among those pollutants, dioxins, chlorate, chlorinated hydrocarbons, chloroform, phenols, and furans were observed, which are seriously harmful to human [7,8]. Pulp wastewater is usually treated by three processes, primary physicochemical 2 of 10 treatment, secondary biochemical treatment, and tertiary advanced treatment [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Shapes Control of Bi2WO6 Nano-Structures as Photo-Fenton Catalysts for Pulping Wastewater Treatment

et al. 2019

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Bi2WO6 assembled by flower-like microspheres and nanosheets were controllably synthesized through a one-step hydrothermal approach. Multiple technologies, including X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and UV–Vis diffuse reflectance spectrum (UV–Vis), were carried out to characterize the as-synthesized samples. The photocatalytic efficiency of Bi2WO6 synthesized with a series of temperature and pH values shows different morphologies and photocatalytic properties. The photocatalyst (Bi2WO6) synthesized at 220 °C and pH of 7 exhibited the best photocatalytic performance, with the methylene blue (MB) degradation approaching 91.6% after reaction time of 60 min. Free radical capture experiments indicate that •OH is the primary reactive species in the methylene blue (MB) degradation reaction, h+ and •O2− contribute negligible influence, while the addition of H2O2 significantly improves the photocatalytic activity of Bi2WO6. Biodegraded poplar preconditioning refiner chemical alkaline peroxide mechanical pulp wastewater (PPW) was treated over Bi2WO6 under UV light (Bi2WO6/UV/H2O2); chemical oxygen demand (CODCr) and color degradation rate were 85.8% and 92.0%, respectively. These results show that Bi2WO6 semiconductors can be introduced as an efficient and stable photocatalyst for industry wastewater treatment.

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Section: Introductionmentioning

confidence: 99%

Shapes Control of Bi2WO6 Nano-Structures as Photo-Fenton Catalysts for Pulping Wastewater Treatment

et al. 2019

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“…This result was similar to that obtained by Machado et al (2018) using the organic load rate of 0.2 kgCODm -3 d -1 in an aerated lagoon. Hubbe et al (2016) and Kamali et al (2019) reported the difficulty that biological systems present in treating cellulose effluents because the efficiency of COD removal is usually around 50%.…”

Section: Evaluation Of Organic Matter Removalmentioning

confidence: 99%

“…Cellulose effluent is treated in various ways, including biological systems, physicalchemical processes, adsorption, advanced oxidation, and membrane filtration (Majumdar et al 2019). Except for the biological ones, these methods are expensive, which often makes their application unfeasible (Kamali and Khodaparast 2015;Kamali et al 2019). Sonkar et al 2019 Activated sludge and aerated facultative lagoon (AFL) processes are the most used systems in the biological treatment of effluents from the pulp and paper industry (Kamali and Khodaparast 2015;Bailón-salas et al 2017;Lewis et al 2018).…”

Section: Introductionmentioning

confidence: 99%

Microbiological diversity in an aerated lagoon treating kraft effluent

Nunes

Silva

Couto

et al. 2021

BioRes

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The microbiological diversity of cultivable bacteria was analyzed in an aerated facultative lagoon. The removal of specific compounds and measures of pollutant load was evaluated with isolated native bacteria, selected and identified in kraft cellulose effluent. The system was operated with an organic loading rate of 0.2 kgCODm-3d-1 for 60 days. Analyses of the fluorescence excitation-emission matrix, acute ecotoxicity, and microbiology were performed. Bioaugmentation tests were done to emphasize the removal of color, using promising species. The removals of biochemical oxygen demand, chemical oxygen demand, and total organic carbon in AFL were 94%, 51%, and 41%, respectively. Regarding color, removal was up to 4%, and the total phenolic compounds were not removed through biological treatment. The treatment also decreased turbidity by 94% and lignin derivatives by 12%. The bacteria identified through NCBI-BLAST and statistical similarity totaled 9 species in the cellulose effluent, three of which have the potential for color treatment: Bacillus cereus, Bacillus thuringiensis, and Paenibacillus sp. The Bacillus cereus combined with biomass removed color (69%), total phenolic compounds (37%), and compounds derived from lignin (53%). These species are promising for removing specific parameters combined with biomass from biological AFL treatment systems.

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“…Com o intuito de regularizar os parâmetros físicos e químicos dos efluentes, objetivando o descarte apropriados desses subprodutos, propõe-se submeter esses resíduos aos chamados tratamentos de efluentes. Kamali et al (2019) ressaltaram que o quantitativo de poluentes contidos nos efluentes depende de inúmeras variáveis do processo, bem como do estágio desse processo em que esse resíduo é gerado. Os mesmos autores, apontam a necessidade dos tratamentos serem suficientemente eficientes, ao mesmo tempo que consideram fatores econômicos e ambientais.…”

Section: Introductionunclassified

Processos físicos e químicos para o tratamento de efluentes: uma revisão integrativa

Azevedo¹,

Cavalcanti²

2020

Rev. Bras. Gest. Amb. Sustent.

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O aumento da produção industrial, provocado pelo crescimento da população mundial, tem gerado uma maior carga de poluentes, dentre eles, os efluentes, comprometendo recursos hídricos. A fim de mitigar os impactos ao meio ambiente, métodos de tratamentos de efluentes têm sido amplamente estudados, sendo os físicos (adsorção, coagulação/floculação) e os químicos (processos oxidativos) os principais. O presente trabalho traz uma revisão integrativa e principais resultados encontrados na literatura especializada para esses métodos, no tratamento de diversos tipos de efluentes. Diante disso, esse trabalho poderá servir de base para fundamentação teórica para pesquisas sobre tratamentos de efluentes, uma vez que foram reunidos e discutidos conceitos e resultados acerca destes tratamentos.

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Additive and additive-free treatment technologies for pulp and paper mill effluents: Advances, challenges and opportunities

Cited by 39 publications

References 141 publications

Shapes Control of Bi2WO6 Nano-Structures as Photo-Fenton Catalysts for Pulping Wastewater Treatment

Shapes Control of Bi2WO6 Nano-Structures as Photo-Fenton Catalysts for Pulping Wastewater Treatment

Microbiological diversity in an aerated lagoon treating kraft effluent

Processos físicos e químicos para o tratamento de efluentes: uma revisão integrativa

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