Review Of Colour Removal Technology In The Pulp And Paper Industry
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Review Of Colour Removal Technology In The Pulp And Paper Industry
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Author : R.J.. Rush
language : en
Publisher:
Release Date : 1976
Review Of Colour Removal Technology In The Pulp And Paper Industry written by R.J.. Rush and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with categories.
Review Of Colour Removal Technology In The Pulp And Paper Industry
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Author : R. J. Rush
language : en
Publisher: Water Pollution Control Directorate : Supply and Services Canada
Release Date : 1976
Review Of Colour Removal Technology In The Pulp And Paper Industry written by R. J. Rush and has been published by Water Pollution Control Directorate : Supply and Services Canada this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with Paper industry categories.
The pulp and paper industry produces large volumes of effluent containing, among other things, dark brown lignin and lignin degradation products. The exact nature of the chromophoric (colour causing) groups in the wastes and the effects of these colour bodies on the aquatic environment are not known. However, developmental work on several processes for colour reduction has reached full scale application and colour removal is now required in many local areas for various reasons. Colour reduction can be achieved by either technical changes within the mill or by effluent treatment systems. In-plant modification can range from simple, inexpensive measures such as pulp washing and better "housekeeping" practices, to complex technological changes such as implementation of oxygen bleaching. While in-plant changes should be considered and implemented as a first preference, external treatment may often still be required. There are a large number of external treatment methods which are known to be technically feasible for colour removal from pulp and paper mill effluents.
State Of The Art Review Of Pulp And Paper Waste Treatment
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Author : Harry W. Gehm
language : en
Publisher:
Release Date : 1973
State Of The Art Review Of Pulp And Paper Waste Treatment written by Harry W. Gehm and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Paper industry categories.
Pulp And Paper Industry
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Author : Pratima Bajpai
language : en
Publisher: Elsevier
Release Date : 2017-02-25
Pulp And Paper Industry written by Pratima Bajpai and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-02-25 with Technology & Engineering categories.
Pulp and Paper Industry: Emerging Waste Water Treatment Technologies is the first book which comprehensively reviews this topic. Over the past decade, pulp and paper companies have continued to focus on minimizing fresh water use and effluent discharges as part of their move towards sustainable operating practices. Three stages—basic conservation, water reuse and water recycling—provide a systematic approach to water resource management. Implementing these stages requires increased financial investment and better utilization of water resources. The ultimate goal for pulp and paper companies is to have effluent-free factories with no negative environmental impact. The traditional water treatment technologies that are used in paper mills are not able to remove recalcitrant contaminants. Therefore, advanced water treatment technologies are being included in industrial wastewater treatment chains aiming to either improve water biodegradability or its final quality. This book discusses various measures being adopted by the pulp and paper industry to reduce water consumption and treatment techniques to treat wastewater to recover it for reuse. The book also examines the emerging technologies for treatment of effluents and presents examples of full-scale installations. Provides thorough and in-depth coverage of advanced treatment technologies which will benefit the industry personnel, pulp manufacturers, researchers and advanced students Presents new treatment strategies to improve water reuse and fulfill the legislation in force regarding wastewater discharge Presents viable solutions for pulp and paper manufacturers in terms of wastewater treatment Presents examples of full-scale installations to help motivate mill personnel to incorporate new technologies
Review Of Color Control Technologies And Their Applicability To Modern Kraft Pulp Mill Wastewater
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Author : Eva Mannisto
language : en
Publisher:
Release Date : 2006
Review Of Color Control Technologies And Their Applicability To Modern Kraft Pulp Mill Wastewater written by Eva Mannisto and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.
Reviews Of Environmental Contamination And Toxicology Volume 212
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Author : David M. Whitacre
language : en
Publisher: Springer Science & Business Media
Release Date : 2011-03-24
Reviews Of Environmental Contamination And Toxicology Volume 212 written by David M. Whitacre and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-03-24 with Science categories.
Reviews of Environmental Contamination and Toxicology attempts to provide concise, critical reviews of timely advances, philosophy and significant areas of accomplished or needed endeavor in the total field of xenobiotics, in any segment of the environment, as well as toxicological implications.
Colour Removal From Magnesium Bisulphite Pulp And Paper Mill Effluent Using Lignite Adsorption And Salt Coagulation
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Author : Galuh Yuliani
language : en
Publisher:
Release Date : 2012
Colour Removal From Magnesium Bisulphite Pulp And Paper Mill Effluent Using Lignite Adsorption And Salt Coagulation written by Galuh Yuliani and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
The removal of colour, organics and phosphorus from pulp and paper mill effluent and the development of colour of the wastewater were investigated. These contaminants are considered to be the most important due to their resistance over common treatment applied by the mill.Two approaches, adsorption and coagulation, were chosen for investigation of the removal of colour, organics and phosphorus from aqueous discharges of a bisulphite pulp and paper mill. Additionally, the colour generation induced by UV irradiation of the treated effluents was investigated. This study was carried out to explore the possibility of UV-induced colour development of the effluent over the long term and to characterize the colour producing species from the wastewater.Cheap and highly abundant brown coal (or lignite) was utilized as adsorbent for colour, phosphorus, and organics from the industrial effluent. Knowledge on the mechanism of brown coal adsorption, selectivity, the effect of pre-treatment and physical properties of brown coal is crucial for the future application of brown coal in the water industry. The mechanism of brown coal adsorption was investigated using various brown coal samples differing in physical and chemical composition and two model dye solutions, cationic (safranin) and anionic (alizarin red) dyes. The capacities of some brown coals (Loy Yang high Na and Yallourn) were higher than commercial coal-based activated carbon. However, the adsorption capacities of all brown coal samples for an anionic dye were very low, less than 3% of that for activated carbon. This result reveals the potential of brown coal to remove positively charged contaminants from aqueous solutions and suggests cation-exchange as the major mechanism involved. Effects of brown coal pre-treatment, drying and washing, were investigated. The equilibrium adsorption data were analysed using the two most popular adsorption isotherms, Langmuir and Freundlich. The Langmuir isotherm fitted most adsorption data of brown coal better than the Freundlich isotherm, supporting the concept of monolayer adsorption and the role of chemical adsorption in the mechanism. When applied to actual wastewater from a magnesium bisulphite pulp and paper mill, brown coal exhibited multi-component adsorption of colour, organics and phosphorus from the solution. Brown coal showed an ability to remove phosphorus from the wastewater, which could not be achieved with activated carbon; yet brown coal had significantly lower adsorption capacities for colour and organics than did activated carbon. This can be explained by the nature of organics and colour that carried negative charge in the wastewater as indicated by the zeta potential analysis. Another powerful technique for organic removal, coagulation, was then chosen to significantly reduce colour and organics content of the effluent.Coagulation using trivalent salts was selected to efficiently remove colour, organics and total phosphorus in the treated and untreated wastewater solution. Selectivity of salt-induced coagulation was achieved and showed the following trend of removal efficiency: colour ~ total phosphorus > TOC. The removal of colour and total phosphorus from concentrated pulp mill effluents were above 90%. The coagulation method was proven to be superior for the remediation of both treated and untreated effluent from pulp and paper industry. However, a small amount of colour and organics still persisted in the wastewater which may lead to colour development after treatment at the collecting discharge point.The Photometric Dispersion Analyzer (PDA) and Focused Beam Reflectance Measurement (FBRM) techniques were utilised to study the coagulation kinetics of the wastewater upon addition of salt. The involvement of fast aggregation and adsorption in the coagulation mechanism were revealed. The high critical coagulation concentration (CCC) and the significant role of trivalent salts in the coagulation process indicated the involvement of complexation reactions prior to coagulation. In coagulation, pH was also found to be a dominant factor affecting efficiency.The UV-induced colour generation of the effluent from pulp and paper industry was studied using UV-irradiation at 302 nm and 254 nm. Lignin derived compounds were suspected to be responsible for colour growth of pulp and paper wastewater. Three model compounds, lignosulfonic acid, humic acid and vanillin, were selected and studied as comparison. The yellowing rate of the wastewater solution was found to be similar to that of the model lignosulfonic acid solution supporting the occurrence of lignin compounds in the wastewater. The yellowing rate of humic acid was lower than the wastewater solution, but the yellowing rate for vanillin was significantly higher than that of the wastewater solution. The irradiation products were analysed using High Performance Liquid Chromatography (HPLC), UV spectroscopy, Electrospray Mass Spectrometry (ES-MS), Proton Nuclear Magnetic Resonance (1H-NMR) and Fourier Transform Infrared Spectroscopy (FTIR). The mechanism of wastewater yellowing upon irradiation was suspected to mimic the mechanism of photo-yellowing of paper. The result also suggested that UV-induced chemical reactions may be important in the aqueous discharge of pulp and paper mill effluent that could potentially enhance its colour.
Handbook Of Chemical Technology And Pollution Control
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Author : Martin B. B. Hocking
language : en
Publisher: Elsevier
Release Date : 2013-10-22
Handbook Of Chemical Technology And Pollution Control written by Martin B. B. Hocking and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-22 with Technology & Engineering categories.
Handbook of Chemical Technology and Pollution Control integrates industrial chemistry with pollution control and environmental chemistry. This unified approach provides practicing professionals and consultants with a concise yet authoritative handbook covering the Key Features, relative importance, and environmental impact of currently operating chemical processes. It also meets the critical needs of students training for industrial careers. Handbook of Chemical Technology and Pollution Control considers community, municipal, power generation, industrial, and transportation components of environmental impact. The book covers the major inorganic and organic commodity chemicals; aluminum, iron and steel, and copper prodution; pulp and paper; fermentation; petroleum production and refining. It also includes key topics and process details for major peterochemicals and large-scale consumer and engineering polymers. This single, convenient volume describes aspects of recycling at the industrial and post-consumer levels, and emphasizes a quantitative approach as used in the author's well-known lifecycle work with disposable and reusable cups. 0-12-350811-8Key Features * Covers historical background and new developments in a single, authoritative handbook * Presents integrated treatment of chemical technology with emission control chemistry * Includes tables throughout that give current and trend data * Considers community, municipal, power generation, industrial, and transportation components of environmental impact * Provides many references to further reading * Contains review questions that offer working experience with the information and concepts
Color Removal From Nssc Mill Effluents By Ultrafiltration
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Author : Peter E. Parker
language : en
Publisher:
Release Date : 1979
Color Removal From Nssc Mill Effluents By Ultrafiltration written by Peter E. Parker and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Ultrafiltration categories.
Selected Water Resources Abstracts
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Author :
language : en
Publisher:
Release Date : 1988
Selected Water Resources Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Hydrology categories.