SOLID WASTE GENERATION IN KRAFT PULP MILLS

2004 ◽  
Vol 3 (3) ◽  
pp. 399-404 ◽  
Author(s):  
Dan Gavrilescu
Keyword(s):  
Solid Waste ◽  
Kraft Pulp ◽  
Waste Generation ◽  
Pulp Mills ◽  
Kraft Pulp Mills ◽  
Solid Waste Generation

The solubility of calcium carbonate  in green liquor handling systems

TAPPI Journal ◽  
2019 ◽  
Vol 18 (10) ◽  
pp. 595-602
Author(s):  
ALISHA GIGLIO ◽  
VLADIMIROS G. PAPANGELAKIS ◽  
HONGHI TRAN
Keyword(s):  
Calcium Carbonate ◽  
Systematic Study ◽  
Kraft Pulp ◽  
Thermodynamic Simulation ◽  
Solubility Data ◽  
Pulp Mills ◽  
Persistent Problem ◽  
Green Liquor ◽  
Kraft Pulp Mills ◽  
Salt Systems

The formation of hard calcite (CaCO3) scale in green liquor handling systems is a persistent problem in many kraft pulp mills. CaCO3 precipitates when its concentration in the green liquor exceeds its solubility. While the solubility of CaCO3 in water is well known, it is not so in the highly alkaline green liquor environment. A systematic study was conducted to determine the solubility of CaCO3 in green liquor as a function of temperature, total titratable alkali (TTA), causticity, and sulfidity. The results show that the solubility increases with increased temperature, increased TTA, decreased causticity, and decreased sulfidity. The new solubility data was incorporated into OLI (a thermodynamic simulation program for aqueous salt systems) to generate a series of CaCO3 solubility curves for various green liquor conditions. The results help explain how calcite scale forms in green liquor handling systems.

Toward Production of Bioethanol Using Pulp Rejects from Kraft Pulp Mills as Raw Materials

2013 ◽  
Vol 67 (11) ◽  
pp. 1248-1251
Author(s):  
Masanori Kishino ◽  
Ken Orihashi ◽  
Akira Harada
Keyword(s):  
Kraft Pulp ◽  
Raw Materials ◽  
Pulp Mills ◽  
Kraft Pulp Mills

Solid Waste Generation of Household in Azad Kashmir: Case Study of Mirpur

2018 ◽  
Author(s):  
Waqas mname Ali ◽  
Rashid mname Khalil ◽  
Shujahat mname Ali
Keyword(s):  
Solid Waste ◽  
Waste Generation ◽  
Solid Waste Generation ◽  
Azad Kashmir

Activated Sludge Treatment of Kraft Mill Effluents from Conventional and Oxygen Bleaching

1991 ◽  
Vol 24 (3-4) ◽  
pp. 427-430 ◽  
Author(s):  
J. Nevalainen ◽  
P.-R. Rantala ◽  
J. Junna ◽  
R. Lammi
Keyword(s):  
Activated Sludge ◽  
Kraft Pulp ◽  
Activated Sludge Process ◽  
Chlorinated Phenols ◽  
Pulp Mills ◽  
Main Interest ◽  
Sludge Treatment ◽  
Kraft Pulp Mills ◽  
Activated Sludge Processes ◽  
Oxygen Bleaching

Conventional and oxygen bleaching effluents from hardwood kraft pulp mills were treated in laboratory-scale activated sludge processes. The main interest was the fate of organochlorine compounds in the activated sludge process. In the treatment of conventional bleaching wastewaters the BOD7-reduction was 80-91 % and in oxygen bleaching wastewaters 86-93 %. The respective CODCr removals were about 40 % and about 50 %. The AOX reductions were on average 22 % and 40 % in the treatment of conventional and oxygen bleaching effluents, respectively. The reductions of chlorinated phenols, guajacols and catecols were usually more than 50 % in both reactors. Very little accumulation of AOX into the sludge was observed. The stripping of AOX from aeration unit was insignificant.

scholarly journals Identification of inference fallacies in solid waste generation estimations of developing countries. A case-study in Panama

2021 ◽  
Vol 126 ◽  
pp. 454-465
Author(s):  
Jorge M. Torrente-Velásquez ◽  
Maddalena Ripa ◽  
Rosaria Chifari ◽  
Mario Giampietro
Keyword(s):  
Developing Countries ◽  
Solid Waste ◽  
Waste Generation ◽  
Solid Waste Generation

scholarly journals Repercussions of COVID-19 pandemic on solid waste generation and management strategies

2021 ◽  
Vol 15 (6) ◽  
Author(s):  
Yangyang Liang ◽  
Qingbin Song ◽  
Naiqi Wu ◽  
Jinhui Li ◽  
Yuan Zhong ◽  
...  
Keyword(s):  
Solid Waste ◽  
Management Strategies ◽  
Waste Generation ◽  
Solid Waste Generation

State of the art methods for combined water and energy systems optimisation in Kraft pulp mills

2021 ◽  
Author(s):  
Elvis Ahmetović ◽  
Zdravko Kravanja ◽  
Nidret Ibrić ◽  
Ignacio E. Grossmann ◽  
Luciana E. Savulescu
Keyword(s):  
Kraft Pulp ◽  
State Of The Art ◽  
Energy Systems ◽  
Pulp Mills ◽  
Art Methods ◽  
Kraft Pulp Mills
Sign in / Sign up

Export Citation Format

Share Document