Comparison Of Powdered Activated Carbon And Activated Sludge Treatment Of A Kraft Pulp Mill Wastewater PDF Download
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Author | : Brian Robert Graham |
Publisher | : |
Total Pages | : 0 |
Release | : 1996 |
Genre | : |
ISBN | : |
Download Comparison of Powdered Activated Carbon and Activated Sludge Treatment of a Kraft Pulp Mill Wastewater Book in PDF, ePub and Kindle
The Powdered Activated Carbon Treatment$\rm\sp{TM}$ (PACT$\rm\sp{TM})$ process consists of powdered activated carbon addition to the activated sludge treatment process. Objectives were (1) to compare treatment of kraft pulp mill wastewater using activated sludge versus PACT$\rm\sp{TM},$ by measuring toxicity, organic load, adsorbable organic halides (AOX) and metals and (2) to assess how three operating conditions: (1) carbon dose; (2) hydraulic retention time; (3) solids retention time, affected performance. Findings were: (1) Lengthy hydraulic retention times are unnecessary. Short hydraulic retention times (4 h) provide adequate treatment. (2) Activated sludge treatment alone removes most biochemical oxygen demand, PACT$\rm\sp{TM}$ offers no improvement. PACT$\rm\sp{TM}$ improves removal of soluble chemical oxygen demand. PACT$\rm\sp{TM}$ improves removal of AOX. Powdered activated carbon dose is the sole determinant of this increased removal. (3) Activated sludge treatment alone removes Microtox$\rm\sp{TM}$ toxicity. PACT$\rm\sp{TM}$ slightly improves treatment of highly toxic wastewaters. Significant chronic toxicity towards Ceriodaphnia remains in effluents from both activated sludge and PACT$\rm\sp{TM}.$ Both treatments remove toxicity to Ceriodaphnia, but PACT$\rm\sp{TM}$ effluents are more toxic. Powdered activated carbon alone exhibits toxicity to Ceriodaphnia. (4) The effect of PACT$\rm\sp{TM}$ on removal of metals is inconclusive. (5) PACT$\rm\sp{TM}$ treatment of kraft mill wastewater would be very expensive. (6) PACT$\rm\sp{TM}$ has limited benefits over activated sludge for the treatment of kraft mill wastewater, therefore PACT$\rm\sp{TM}$ is not recommended for treatment of kraft mill wastewater.
Author | : Darrell Ball |
Publisher | : |
Total Pages | : 0 |
Release | : 1996 |
Genre | : |
ISBN | : |
Download Comparison of the PACT(TM) and Activated Sludge Processes, for the Treatment of a Kraft Pulp Mill Wastewater Book in PDF, ePub and Kindle
This study has compared the conventional activated sludge process to the Powdered Activated Carbon Treatment (PACT$\rm\sp{TM})$ process for the treatment of a bleached kraft mill effluent. The PACT$\rm\sp{TM}$ process involves the addition of powdered activated carbon (PAC) to the aeration basin of an activated sludge system. Powdered activated carbon has a very high surface area and is able to adsorb large amounts of hydrophobic compounds, such as organochlorines. This process was selected because it was likely to increase the removals of toxins including adsorbable organics halides (AOX) and because it had not been evaluated for this type of wastewater. Bench scale continuous flow reactors, with internal sludge recycle, were used in this study. The design and process control parameters varied included hydraulic retention time, solids retention time and powdered activated carbon dose. PAC doses of 0.1-1.0 g/L were used. Four feeds were used in this study, which were collected at different times, from a bleached kraft pulp mill batch operation. Two conceptual models for effluent SCOD prediction were developed and tested. (Abstract shortened by UMI.).
Author | : Alan J. Shuckrow |
Publisher | : |
Total Pages | : 364 |
Release | : 1977 |
Genre | : Carbon, Activated |
ISBN | : |
Download Appraisal of Powdered Activated Carbon Processes for Municipal Wastewater Treatment Book in PDF, ePub and Kindle
Author | : W. G. Timpe |
Publisher | : |
Total Pages | : 116 |
Release | : 1973 |
Genre | : Paper industry |
ISBN | : |
Download Kraft Pulping Effluent Treatment and Reuse Book in PDF, ePub and Kindle
Author | : E. W. Lang |
Publisher | : |
Total Pages | : 230 |
Release | : 1975 |
Genre | : Sewage |
ISBN | : |
Download Activated Carbon Treatment of Unbleached Kraft Effluent for Reuse Book in PDF, ePub and Kindle
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Total Pages | : 962 |
Release | : 1991 |
Genre | : Hydrology |
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Author | : Dennis P. Tihansky |
Publisher | : |
Total Pages | : 412 |
Release | : 1973 |
Genre | : Water quality management |
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Download Cost Analysis of Water Pollution Control Book in PDF, ePub and Kindle
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Total Pages | : 412 |
Release | : 1973 |
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Author | : Lawrence K. Wang |
Publisher | : CRC Press |
Total Pages | : 1368 |
Release | : 2004-06-29 |
Genre | : Science |
ISBN | : 9780203026519 |
Download Handbook of Industrial and Hazardous Wastes Treatment Book in PDF, ePub and Kindle
Presenting effective, practicable strategies modeled from ultramodern technologies and framed by the critical insights of 78 field experts, this vastly expanded Second Edition offers 32 chapters of industry- and waste-specific analyses and treatment methods for industrial and hazardous waste materials-from explosive wastes to landfill leachate to w
Author | : |
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Total Pages | : 1132 |
Release | : 1973 |
Genre | : Energy conservation |
ISBN | : |
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