Treatment of Effluents from Hemp-Based Pulp and Paper Industry II. Biological Treatability of Pulping Effluents

1994 ◽  
Vol 29 (9) ◽  
pp. 165-168 ◽  
Author(s):  
Celai F. Gökçay ◽  
Filiz B. Dilek
Keyword(s):  
Phanerochaete Chrysosporium ◽  
Removal Efficiency ◽  
Batch Reactor ◽  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Pulp And Paper ◽  
Colour Removal ◽  
High Concentrations ◽  
Biological Treatability

This paper is focussed on the biological treatability studies of pulping effluents from a hemp-based pulp and paper industry. Experiments were conducted by using white fungus, Phanerochaete chrysosporium, in a laboratory batch reactor. It was found that the colour removal efficiency is 75% for pulping effluents in the presence of high concentrations of glucose.

scholarly journals Auxipó as auxiliary agent of coagulation for pulp and paper industry wastewater

2017 ◽  
Vol 12 (3) ◽  
pp. 681-689
Author(s):  
Atila Brizola Ribas
Keyword(s):  
Removal Efficiency ◽  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Pulp And Paper ◽  
Turbidity Removal ◽  
Coagulation And Flocculation ◽  
Industry Wastewater

The aim of this paper is to prove the applicability of Auxipó as an auxiliary agent of coagulation for pulp and paper industry wastewater. Thus, it is possible to clarify the effluent more efficiently before launching it in waterbodies. To test the applicability of the auxiliary agent of coagulation, two coagulation and flocculation assay diagrams were developed: the first diagram only shows coagulant dosages, and the second diagram represents the coagulant and Auxipó dosage. Both tests demonstrated efficiency in turbidity removal; however, the results showed higher removal efficiency after the dosage of Auxipó.

scholarly journals Removal of colour from alkali extracted wastewater of Pulp and paper mill using fly ash as adsorbent

2018 ◽  
Vol 10 (4) ◽  
pp. 1318-1324
Author(s):  
Anju Malik ◽  
Shaveta Kakkar ◽  
Sanjeev Gupta
Keyword(s):  
Activated Carbon ◽  
Fly Ash ◽  
Removal Efficiency ◽  
Paper Industry ◽  
Industrial Effluent ◽  
Paper Mill ◽  
Pulp And Paper Industry ◽  
Pulp And Paper ◽  
Experimental Conditions ◽  
Adsorbent Dose

The study aims to explore the beneficial use of fly ash and its effectiveness as low cost adsorbent for wastewater treatment of Pulp and paper industry. A comparative study was also carried out for the better colour reduction of industrial effluent using fly ash and commercial activated carbon. Batch mode adsorption experiments were carried out to optimize the different experimental conditions like adsorbent dose, contact time, rotation per minute (RPM) and pH. The treatment showed that the removal efficiency of colour increased to 86 % with the increase in adsorbent dose (0.5 – 10 g), time (30–240 min), RPM (50 - 150) and pH (4–12) of pulp and paper industry wastewater. The removal efficiency of activated carbon was found to be 100 % using 1 g adsorbent dose of commercial grade activated carbon. The Scan Electron Microscope (SEM) results of the fly ash showed that the particles looked like somewhat spherical large particles. It was concluded that though the activated carbon was very efficient adsorbent in comparison to fly ash, the better solution for disposal of solid waste such as fly ash can be good a substitute as the adsorbent for the colour reduction of the paper mill wastewater.

scholarly journals TREATMENT OF COLOUR IN COMBINED WASTEWATER FROM PULP AND PAPER INDUSTRY BY FENTON REACTION

2009 ◽  
Vol 12 (5) ◽  
pp. 37-45
Author(s):  
Duc Sy Dao ◽  
Mai Thi Vu ◽  
Lan Thi Phuong Doan
Keyword(s):  
Fenton Reaction ◽  
Advanced Oxidation Processes ◽  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Pulp And Paper ◽  
Optimum Conditions ◽  
Colour Removal ◽  
Kinetic Rate ◽  
Kinetic Rate Constants ◽  
Suitable Technique

In this study, the advanced oxidation processes (AOPs) using Fenton reaction (F-AOPs) was applied in order to remove colour in combined wastewater from pulp and paper industry after treated by a combination of coagulation and activated sludge. The effects of key operating parameters, such as the concentration of iron (II) sulfate, hydrogen peroxide dosage, pH, visible light as well as photocatalyst TiO2 on the decolorization were studied and discussed. Some kinetic rate constants at different conditions have been determined. The results shown that F-AOPs was a suitable technique for removing colour from effluent from pulp and paper industry. At optimum conditions, the colour removal was more than 90% and 100% without with photocatalyst after 40 minutes of reaction, respectively.

Co-cooking nonwoods with hardwoods

TAPPI Journal ◽  
2014 ◽  
Vol 13 (6) ◽  
pp. 19-24
Author(s):  
TROY RUNGE ◽  
CHUNHUI ZHANG
Keyword(s):  
High Performance Liquid Chromatography ◽  
High Performance ◽  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Strength Properties ◽  
Agricultural Residues ◽  
Kraft Pulping ◽  
Pulp And Paper ◽  
Strength Increase ◽  
Xylan Content

Agricultural residues and energy crops are promising resources that can be utilized in the pulp and paper industry. This study examines the potential of co-cooking nonwood materials with hardwoods as means to incorporate nonwood material into a paper furnish. Specifically, miscanthus, switchgrass, and corn stover were substituted for poplar hardwood chips in the amounts of 10 wt %, 20 wt %, and 30 wt %, and the blends were subjected to kraft pulping experiments. The pulps were then bleached with an OD(EP)D sequence and then refined and formed into handsheets to characterize their physical properties. Surprisingly, all three co-cooked pulps showed improved strength properties (up to 35%). Sugar measurement of the pulps by high-performance liquid chromatography suggested that the strength increase correlated with enriched xylan content.

Application of VSEP for Pulp and Paper Industry.

1999 ◽  
Vol 53 (10) ◽  
pp. 1334-1338 ◽  
Author(s):  
Yoshiya Kuide ◽  
Kazuyoshi Yamamoto
Keyword(s):  
Paper Industry ◽  
Pulp And Paper Industry ◽  
Pulp And Paper
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