Treatment of Bleach Plant Effluent with the Biological Granular Activated Carbon Process

1992 ◽  
Vol 26 (1-2) ◽  
pp. 427-434 ◽  
Author(s):  
C. A. Jackson-Moss ◽  
J. P. Maree ◽  
S. C. Wotton
Keyword(s):  
Activated Carbon ◽  
Microbial Activity ◽  
Paper Industry ◽  
Granular Activated Carbon ◽  
Pulp And Paper Industry ◽  
Pulp And Paper ◽  
Adsorptive Capacity ◽  
Anaerobic Reactor

Bleach plant effluent from the pulp and paper industry was treated by means of the anaerobic biological granular activated carbon process. It was found that over 50% of the COD and colour could be successfully removed from this effluent. The adsorptive capacity of the activated carbon was extended as a result of microbial activity inside the anaerobic reactor. The results of this investigation suggest that the anaerobic biological granular activated carbon process could be used to alleviate the pollution problems experienced by the pulp and paper industry.

Methanogenic and sulphate reducing bacterial population levels in a full-scale anaerobic reactor treating pulp and paper industry wastewater using fluorescence in situ hybridisation

2007 ◽  
Vol 55 (10) ◽  
pp. 183-191 ◽  
Author(s):  
O. Ince ◽  
M. Kolukirik ◽  
Z. Cetecioglu ◽  
O. Eyice ◽  
C. Tamerler ◽  
...  
Keyword(s):  
Relative Abundance ◽  
Paper Industry ◽  
In Situ Hybridisation ◽  
Pulp And Paper Industry ◽  
Pulp And Paper ◽  
Fluorescence In Situ Hybridisation ◽  
Methanogenic Activity ◽  
Anaerobic Reactor ◽  
Reactor Height

In this study, specific methanogenic activity (SMA) test and fluorescence in situ hybridisation (FISH) were respectively used to determine acetoclastic methanogenic capacity, and composition and number of methanogenic and sulphate reducing bacterial (SRB) populations within a full scale anaerobic contact reactor treating a pulp and paper industry effluent. The sludge samples were collected from three different heights along the anaerobic reactor having a difficulty of completely stirring. Performance of the anaerobic reactor in terms of COD removal efficiency varied between 47 and 55% at organic loading rates in a range of 1.6–1.8 kg COD m−3 d−1 and methane yield varied between 0.18 and 0.20 m3CH4 kg CODrem−1. The anaerobic reactor was not operated for 2 weeks during the monitoring period. According to SMA test results, potential methane production rate was 276 mL CH4 gVSS−1 d−1 before the off period of the reactor, however it decreased to 159 mL CH4 gVSS−1 d−1 after this period. SMA test and FISH results along the reactor height showed that the acetoclastic methanogenic activity of the sludge samples, the relative abundance of acetoclastic methanogens, hydrogenotrophic methanogens and acetate oxidising SRB decreased as the reactor height increased, however the relative abundance of non-acetate oxidising SRB increased.

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.

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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