pulp and paper industry wastewater Articles

Auxipó as auxiliary agent of coagulation for pulp and paper 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 ...

Jan. 1, 2017

By IWA Publishing

Effect of ozonation on activated sludge from pulp and paper industry

Aerobic biological treatment with activated sludge is the predominant process all over the world for treatment of pulp and paper industry wastewater. 50–70% of the biodegradable organic material is oxidized to CO2 and the rest is converted to bacterial biomass, typically termed as excess sludge or waste activated sludge (WAS). Handling and disposal of WAS in general and in particular from the ...

Oct. 1, 2010

By IWA Publishing

Understanding a component of industrial papermaking and its pollution load through the application of multivariate analysis

A multivariate analysis technique was used to characterise the interrelationships between the input variables involved in industrial papermaking in order to predict the corresponding wastewater load. The root causes of increasing water pollution load were found to be associated with reprocessing of paper products, pulp stock composition, and inconsistent chemistry for coating operations and paper ...

Sep. 16, 2005

By Inderscience Publishers

Aeration for Paper mill oxidation lagoons - Case study

PROJECT DETAILS LOCATION Villa de Reyes, San Luis Potosi, Mexico CUSTOMER Productora Nacional de Papel SA de CV SOLUTION Wastewater Aeration TECHNOLOGIES Four 50 horsepower blower-assisted TORNADO® aerators and eight 50 horsepower TWISTER® float-mounted aerators Fluence designed a hybrid system featuring its TWISTER® and TORNADO®aerators to prevent sludge accumulation ...

Oct. 4, 2019

By Fluence Corporation

Paper & Pulp Industry Wastewater Treatment

Pulp and Paper Wastewater Corrugator Saves $70k Per Year Paper and pulp wastewater treatment doesn't have to be costly and troublesome. Your paper pulp wastewater can be cleanly and effectively treated and reused. The pulp and paper industry is wastewater intensive so there is great potential in wastewater reuse with the correct approach and optimization of the wastewater treatment ...

Mar. 29, 2007

By Integrated Engineers Inc.

Creation of a sustainable water resource through reclamation of municipal and industrial wastewater in the Gippsland Water Factory

The Gippsland Water Factory (GWF) is being implemented to reclaim domestic and industrial (pulp and paper) wastewater to provide a reliable and sustainable industrial water supply, replacing the high quality raw water currently provided by Gippsland Water. A grassroots facility, the GWF will process domestic wastewater by preliminary treatment, primary sedimentation, membrane bioreactor (MBR) ...

Feb. 28, 2013

By IWA Publishing

Full-scale experience with the membrane bioreactor-reverse osmosis water reclamation process

The Gippsland Water Factory (GWF), owned and operated by Gippsland Water in south eastern Australia, is a 35,000 m3/day water reclamation facility which treats 16,000 m3/day of domestic wastewater and 19,000 m3/day of industrial (pulp and paper) wastewater through parallel membrane-bioreactor (MBR)-based treatment trains prior to discharge to the Pacific Ocean via the Regional Outfall Sewer. ...

Oct. 31, 2015

By IWA Publishing

Anaerobic treatment of recycled paper mill effluent with the internal circulation reactor

Anaerobic effluent treatment using the BIOPAQ® UASB (Anaerobic Upflow Sludge Bed) process has been used on a large variety of effluents from the pulp and paper industry. Newly developed sludge bed reactors which allow higher upflow velocities have been successfully introduced into the pulp and paper industry. An example of such a reactor is the internal circulation reactor (BIOPAQ® IC reactor). ...

Jan. 1, 2005

By Paques Technology B.V.

Historical decline and altered congener patterns of polychlorinated dibenzo‐p‐dioxins and dibenzofurans in fish and sediment in response to process changes at a pulp mill discharging into Jackfish Bay, Lake Superior

Improved regulations for pulp and paper mill effluents and an industry shift away from elemental chlorine bleaching in the 1990s greatly reduced the release of polychlorinated dibenzo‐p‐dioxins and dibenzofurans (PCDD/Fs) into the environment. However, the high potential of these contaminants to persist in sediment and bioaccumulate in biota means that they have remained a concern. To document ...

Oct. 15, 2015

By John Wiley & Sons, Ltd.

Removing 2,4-dichlorophenol from aqueous environments by heterogeneous catalytic ozonation using synthesized MgO nanoparticles

2,4-Dichlorophenol (2,4-DCP) is one of the seriously toxic chlorophenol compounds found in agricultural environments, in water disinfected by chlorine, and in outgoing effluents from the pulp and paper industries and paper manufacturing factories. This research studied the feasibility of using MgO nanoparticles (MgO-NPs) as a catalyst in the ozonation process for removing 2,4-DCP from aqueous ...

Aug. 31, 2017

By IWA Publishing

Treatment of black liquor of paper-making by combined process of acid-producing white rot fungus – anaerobic hydrolysis – contact oxidation – internal electrolysis

Paper making Black Liquor (BL) difficult to treat. Acid-producing White Rot Fungus (AWRF) was used to regulate the pH and convert the lignin in paper making BL into forms more easier to degrade. Then the BL is put into further treatments of anaerobic hydrolysis, contact oxidation and internal electrolysis processes. Average removal rates of COD and colour are up to 98.04% and 97.68% respectively ...

Jun. 23, 2009

By Inderscience Publishers

Energy efficient aeration of wastewaters from the pulp and paper industry

More than 50% of the electrical power needed to treat pulp and paper industry effluents is used for aeration in biological treatment stages. A large share of the oxygen that passes through the wastewater is not consumed and will be found in the off-gas. Energy can be saved by aerating under conditions where the oxygen transfer is most efficient, for example at low concentrations of dissolved ...

Nov. 1, 2010

By IWA Publishing

What is a check valve and how it works

Check valves are found in almost every industrial application acting as non-return or one-way valves. Generally simple devices, check valves perform a vital function preventing reverse flows, damage and ensuring efficient operations. Reverse flow can, for example, result in water hammer. This phenomenon can see repeated extreme pressure surges in connected pipework, valves and pumps that may ...

Oct. 10, 2020

By Proco Products, Inc.

Replacement of fresh water use by final effluent recovery in a highly optimized 100% recovered paper mill

A further closure of the water circuit in paper mills with a relative high optimization of their water network is limited by the increase of contamination in the water and runnability problems of the paper machine. Therefore, new strategies for saving water must be focussed on the treatment of final effluents of the paper mill, aiming to obtain high quality water that may replace fresh water use ...

Oct. 1, 2010

By IWA Publishing

VSEP replaces crossflow membrane systems, filtering industrial wastewater at pulp and paper mills

Technological advances in membrane filtration systems have created an opportunity for pulp and paper mills to treat effluent streams in order to meet stricter environmental constraints. “Vibratory Shear Enhanced Processing” or VSEPÔ, developed by New Logic International makes it possible to filter effluent streams without the fouling problems exhibited by conventional membrane systems. The VSEP ...

May 31, 2007

By New Logic Research, Inc.

A short guide to industrial wastewater treatment

While the sources of wastewater are kept on creating issues for human society, the shortage of drinking water also lagged on behind it. The scarcity of drinkable water is the most severe issue that is the society is confronting today. Though we love in a society whose 1/3rd% lands are acquired by water, yet the sources of drinkable water are limited. But thanks to the modern technology that has ...

Sep. 29, 2016

By Genesis Water Technologies, Inc.

Correlation of wood-based components and dewatering properties of waste activated sludge from pulp and paper industry

Large amounts of wet sludge are produced annually in municipal and industrial wastewater treatment. Already in pulp and paper industry, more than ten million tons of primary sludge, waste activated sludge, and de-inking sludge is generated. Waste activated sludge contains large quantities of bound water, which is difficult to dewater. Low water content would be a matter of high calorific value in ...

Jul. 1, 2010

By IWA Publishing

Comparing the efficiency of uaff and uasb with hybrid reactor in treating wood fiber wastewater

Some industrial wastewaters such as pulp and paper mills and chemicals are highly loaded with organic pollutants and can be treated advantageously by means of anaerobic processes. Anaerobic treatment converts the wastewater organic pollutants into a small amount of sludge and a large amount of biogas. Several operational problems have normally been experienced in both suspended growth and biofilm ...

Jan. 11, 2005

By University of Tehran

Catalytic wet oxidation of ferulic acid

Catalytic Wet Oxidation (CWO) of aqueous ferulic acid (a lignin model compound) was carried out under mild conditions (100?150?C, ~300 kPa PO2). Significant removal of ferulic acid (in terms of Total Organic Carbon (TOC)) (81% at 100?C and 95% at 150?C after 2 hr) was obtained using a CuNiCe/Al2O3 catalyst. A considerable portion of this TOC was removed during the heat-up period prior to oxygen ...

Apr. 22, 2008

By Inderscience Publishers

Coagulation–flocculation for lignin removal from wastewater – a review

Industrial discharge has tremendously increased inorganic pollutants in water bodies all over the world. Paper and pulp effluent is included in one of the most pollution generating discharges containing complex chemical compounds such as lignin. For clean and healthy water resources, the recovery of lignin from wastewater from the paper and pulp industry is of high importance. Available ...

Apr. 24, 2014

By IWA Publishing

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