Treatment of Adsorbable Organic Halides from Recycled Paper Industry Wastewater using a GAC-SBBR Pilot Plant System

The feasibility of using ozonation and adsorption for the post-treatment of biologically treated effluents of the pulp and paper industry has been studied. Equilibrium conditions, as well as the kinetics of both processes, have been determined. The COD, AOX (adsorbable organic halides) content and color were chosen as the main process parameters. General design of an ozone reactor and adsorption unit, as well as estimates of capital and operating costs for both processes, have also been presented. Some remarkable advantages of ozonation in comparison to PAC-adsorption have been emphasized: at the same purification cost ($/m3) ozonation can guarantee 7-8 times higher efficiency than adsorption. Destroying color bodies and toxic organochlorine compounds in the effluents from the pulp and paper industry with ozone has become very promising.

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Kandungan Hexenuronic Acid pada Pulp serta Pengaruhnya terhadap Kualitas Pulp dan Air Limbah: Tinjauan

JURNAL SELULOSA ◽

10.25269/jsel.v8i02.238 ◽

2018 ◽

Vol 8 (02) ◽

pp. 61

Author(s):

Andri Taufick Rizaluddin ◽

Krisna Septiningrum

Keyword(s):

Paper Industry ◽

Kappa Number ◽

Pulp And Paper ◽

Bleaching Process ◽

Adsorbable Organic Halides ◽

Organic Halides ◽

Cooking Process ◽

Hydrolysis Process ◽

Organic Chlorine ◽

Hexenuronic Acid

Proses pemasakan kayu dengan cara alkali aktif akan menghasilkan hexenuronic acid (HexA) yang berasal dari grup glucuronoxylan, tepatnya 4-O-methylglucuronoxylan pada hemiselulosa. Proses hidrolisis HexA menghasilkan dua jenis senyawa furan, yaitu 2-furancarboxylic acid (FA) dan 5-formyl-2-furancarboxylic acid (FFA). Proses hidrolisis HexA hasil proses pemasakan dan terkandung dalam pulp dan kertas merupakan salah satu penyebab proses penguningan pada kertas akibat adanya paparan kelembapan dan panas dari lingkungan. Selain itu, kandungan HexA pada pulp juga dapat meningkatkan konsumsi bahan kimia pada proses produksi pulp dan kertas, terutama pada proses pemutihan dan pengujian parameter bilangan Kappa, serta dapat berkontribusi pada kandungan senyawa organik klorin terlarut dalam air limbah industri pulp dan kertas. Metode untuk menurunkan kandungan HexA dari pulp dan kertas antara lain dengan mengaplikasikan proses oksidatif kimia pada proses pemutihan atau dengan menggunakan proses enzimatis. Kandungan HexA yang rendah, akan dapat mempertahankan pulp dan kertas dari terjadinya proses penguningan, menghemat konsumsi bahan kimia serta menurunkan kandungan adsorbable organic halides (AOX) pada air limbah.Kata kunci: hexenuronic acid, pemasakan kayu, bilangan Kappa, AOX, enzimatis Hexenuronic Acid Content on Pulp and its Effects on Pulp Quality and Wastewater: a ReviewAbstractThe wood active alkali cooking process will produce hexenuronic acid (HexA) originating from 4-O-methylglucuronoxylan of the glucuronoxylan group in hemicellulose. Hydrolysis process of HexA produces two types of furan compounds, namely 2-furancarboxylic acid (FA) and 5-formyl-2-furancarboxylic acid (FFA). The HexA hydrolysis process contained in pulp and paper resulting from the cooking process is one of the causes of the yellowing process on paper due to exposure to moisture and heat from the environment. In addition, the HexA content of pulp can also increase the consumption of chemicals in the pulp and paper production process, especially in the bleaching process and testing of Kappa number parameters, and can also contribute to the content of organic chlorine soluble compounds in the waste water of the pulp and paper industry. There are several methods for reducing the HexA content of pulp and paper including by applying the oxidative chemical process to the bleaching process or by using an enzymatic process. Low HexA content, will be able to maintain pulp and paper from the occurrence of the pulp yellowing process, save on chemical consumption and reduce the adsorbable organic halides (AOX) content in wastewater.Keywords: hexenuronic acid, wood cooking, Kappa number, AOX, enzymatic

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Upflow anaerobic filter for the degradation of adsorbable organic halides (AOX) from bleach composite wastewater of pulp and paper industry

Chemosphere ◽

10.1016/j.chemosphere.2009.02.042 ◽

2009 ◽

Vol 75 (9) ◽

pp. 1179-1185 ◽

Cited By ~ 23

Author(s):

N.S. Deshmukh ◽

K.L. Lapsiya ◽

D.V. Savant ◽

S.A. Chiplonkar ◽

T.Y. Yeole ◽

...

Keyword(s):

Paper Industry ◽

Pulp And Paper Industry ◽

Pulp And Paper ◽

Anaerobic Filter ◽

Adsorbable Organic Halides ◽

Organic Halides

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Deinking of recycled paper by coupling of the enzyme endo-β-1,4-D-glucanasa and the cellulose, and by using a laboratory flotation column

MRS Advances ◽

10.1557/adv.2020.390 ◽

2020 ◽

Vol 5 (52-53) ◽

pp. 2669-2678

Author(s):

Jeovani González P. ◽

Ramiro Escudero G

Keyword(s):

Amino Acids ◽

Sodium Hydroxide ◽

Paper Industry ◽

Computational Simulation ◽

Cellulose Fibers ◽

Residual Water ◽

Chemical Reagent ◽

Recycled Paper ◽

Flotation Column ◽

Hydrolysis Of

AbstractDeinking of recycled office (MOW) paper was carried out by using a flotation column and adding separately sodium hydroxide, and the enzyme Cellulase Thricodema Sp., as defibrillators.The de-inked cellulose fibers were characterized according to the standards of the paper industry, to compare the efficiency of the deinking of each chemical reagent used to hydrolyze the fibers and defibrillate them.The computational simulation of the molecular coupling between the enzyme and cellulose was performed, to establish the enzyme-cellulose molecular complex and then to identify the principal amino-acids of endo-β-1,4-D-glucanase in this molecular link, which are responsible for the hydrolysis of the cellulose.Experimental results show the feasibility to replace sodium hydroxide with the enzyme Cellulase Thricodema Sp., by obtaining deinked cellulose with similar optical and physical properties.The use of the enzyme instead of sodium hydroxide avoids the contamination of the residual water; in addition to that, the column is operated more easily, taking into consideration that the pH of the system goes from alkaline to neutral.

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Metagenomic analysis for profiling of microbial communities and tolerance in metal-polluted pulp and paper industry wastewater

Bioresource Technology ◽

10.1016/j.biortech.2021.124681 ◽

2021 ◽

Vol 324 ◽

pp. 124681

Author(s):

Pooja Sharma ◽

Sonam Tripathi ◽

Ram Chandra

Keyword(s):

Microbial Communities ◽

Paper Industry ◽

Pulp And Paper Industry ◽

Pulp And Paper ◽

Metagenomic Analysis ◽

Industry Wastewater

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Corrigendum to “In-situ toxicity assessment of pulp and paper industry wastewater on Trigonella foenum-graecum L: Potential source of cytotoxicity and chromosomal damage” [Environ. Technol. Innov. (2020) 101251]

Environmental Technology & Innovation ◽

10.1016/j.eti.2021.101375 ◽

2021 ◽

Vol 22 ◽

pp. 101375

Author(s):

Pooja Sharma ◽

Sonam Tripathi ◽

Nithya Vadakedath ◽

Ram Chandra

Keyword(s):

Paper Industry ◽

Pulp And Paper Industry ◽

Toxicity Assessment ◽

Pulp And Paper ◽

Chromosomal Damage ◽

Trigonella Foenum Graecum ◽

Potential Source ◽

Trigonella Foenum Graecum L ◽

Industry Wastewater

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Green Activity-Based Costing Production Decision Model for Recycled Paper

Energies ◽

10.3390/en13102413 ◽

2020 ◽

Vol 13 (10) ◽

pp. 2413 ◽

Cited By ~ 1

Author(s):

Chu-Lun Hsieh ◽

Wen-Hsien Tsai ◽

Yao-Chung Chang

Keyword(s):

Mathematical Programming ◽

Programming Model ◽

Paper Industry ◽

Labor Cost ◽

Production Model ◽

Theory Of Constraints ◽

Carbon Equivalent ◽

Activity Based Costing ◽

Recycled Paper ◽

Green Production

Using mathematical programming with activity-based costing (ABC) and based on the theory of constraints (TOC), this study proposed a green production model for the traditional paper industry to achieve the purpose of energy saving and carbon emission reduction. The mathematical programming model presented in this paper considers (1) revenue of main products and byproducts, (2) unit-level, batch-level, and product-level activity costs in ABC, (3) labor cost with overtime available, (4) machine cost with capacity expansion, (5) saved electric power and steam costs by using the coal as the main fuel in conjunction with Refuse Derived Fuel (RDF). This model also considers the constraint of the quantity of carbon equivalent of various gases that are allowed to be emitted from the mill paper-making process to conform to the environmental protection policy. A numerical example is used to demonstrate how to apply the model presented in this paper. In addition, sensitivity analysis on the key parameters of the model are used to provide further insights for this research.

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