pulp and paper wastewater Articles

Temperature effects on biodegradation kinetic parameters and settling characteristics of activated sludge treating pulp and paper wastewater

The proposed process modifications of the pulp and paper mill made it necessary to evaluate the effect of alteration in local wastewater treatment facility owing to increased temperature, increased flow, and higher organic loading. The settleability of the MLSS was evaluated as a function of the elevated operating temperatures. The SVI values at 25- 40 °C were between 115-173 mL/g which is higher ...

Oct. 13, 2007

By Water Environment Federation (WEF)

Biotransformation potential of phytosterols under anoxic and anaerobic conditions

The biotransformation potential of three phytosterols (campesterol, stigmasterol and β-sitosterol) under denitrifying, sulfate-reducing and fermentative/methanogenic conditions was assessed. Using a group contribution method, the standard Gibbs free energy of phytosterols was calculated and used to perform theoretical energetic calculations. The oxidation of phytosterols under aerobic, ...

Apr. 24, 2014

By IWA Publishing

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.

Monitoring colour and COD removal capacity of soil and assessment of growth performance of crop grown with pulp and paper mill waste water: a lysimeter study

Evaluation of the changes in physico-chemical properties of soils and crops grown with pulp and paper mill wastewater in field lysimeters were carried out for three years at the Integrated Pulp and Paper Mill, Madhya Pradesh (India). Treated wastewater evaluated for crop irrigation belonged to the irrigation water class 'Moderate to Severe Restriction on use'. Application of wastewater showed the ...

Apr. 7, 2011

By Inderscience Publishers

Evaluation of sgbr and uasb reactors to treat pulp and paper wastewater.

Abstract The present study evaluated the performance of a static granular bed reactor (SGBR) and an upflow anaerobic sludge blanket (UASB) reactor at mesophilic conditions under various hydraulic retention times (HRTs) for the treatment of paper mill wastewater. Wastewater was provided by Grand Rapids Wastewater Treatment Facility (WWTF) in Minnesota, USA. Anaerobic seed granules were obtained ...

Oct. 13, 2007

By Water Environment Federation (WEF)

Characterization of dissolved organic matter in the secondary effluent of pulp and paper mill wastewater before and after coagulation treatment

Meeting the regulatory discharge standards for pulp and paper mill wastewater has become ever more difficult because of its recalcitrant and colored dissolved organic matter (DOM). In this study, the variation of DOM from the secondary effluent of pulp and paper mill wastewater before and after coagulation was investigated based on hydrophobicity/hydrophilicity, apparent molecular weight (MW) ...

Jun. 24, 2016

By IWA Publishing

Nutrient Optimization for Pulp & Paper Wastewater Treatment Plants - An Opportunity for Major Cost Savings

Abstract Pulp & paper wastewater treatment plants (WWTP) often add nitrogen and phosphorus to ensure optimum performance. If there are insufficient nutrients for bacterial metabolism, an increase in effluent total suspended solids (TSS), biological oxygen demand (BOD) and/or chemical oxygen demand (COD) may occur. As well, nutrient deficiency can cause or contribute to acute or chronic ...

Jan. 1, 2009

By Strathkelvin Instruments Limited

Phytoremediation technology for wastewater treatment: high rate transpiration system

High Rate Transpiration System (HRTS) is a well-designed land treatment system composed of ridges and furrows and well-controlled hydraulic loading of wastewater. The present case study describes long-term operating experience of zero discharge of pulp and paper mill wastewater, which is characterised by high BOD, COD, TDS and colour that poses disposal problems into water bodies and on land. The ...

Oct. 11, 2010

By Inderscience Publishers

Purification of pulp and paper mill effluent through Typha and Canna using constructed wetlands technology

The use of constructed wetlands (CW) to treat domestic as well as industrial wastewater is rapidly emerging as a viable alternative in India. Constructed wetland systems offer several potential advantages as a wastewater treatment process. These advantages include simple operation and maintenance and lower construction and operating costs. The study evaluated the effectiveness of the subsurface ...

Dec. 1, 2011

By IWA Publishing

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

Updating a model of pulp and paper wastewater treatment in a partial-mix aerated stabilization basin system

A relatively simple set of calculations was presented in 1994 to evaluate the effectiveness of each ASB cell as reactor, clarifier, and digester. The steady-state model, which incorporated estimates of solids settling and benthal feedback of BOD5 and nutrients, has been a reasonable diagnostic tool for municipal and industrial applications. Results have aided in understanding normal system ...

Sep. 1, 2010

By IWA Publishing

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

Application of response surface methodology as a new PID tuning method in an electrocoagulation process control case

In this work the application of response surface methodology (RSM) to proportional-integral-derivative (PID) controller parameter tuning for electrocoagulation (EC) treatment of pulp and paper mill wastewater was researched. Dynamic data for two controlled variables (pH and electrical conductivity) were obtained under pseudo random binary sequence (PRBS) input signals applied to manipulated ...

Sep. 26, 2017

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

Removal of phosphorus from wastewaters by biomass ashes

Removal batch assays of phosphates from a synthetic wastewater (SWW) and a pulp and paper mill wastewater (PPWW) with two forestry biomass ashes were performed. The supernatants were not only chemically characterized but also the ecotoxicity was determined using two organisms: Vibrio fischeri and Artemia franciscana. The addition of fly ash and bottom ash to the SWW in solid/liquid (S/L) ratios ...

Nov. 13, 2013

By IWA Publishing

Assessing Upstream Process Changes with ATP Monitoring

While the Biomass Stress Index (BSI) parameter is most often used to reveal when a biological population has been subjected to toxicity, it can also indicate when an upstream change has relieved a stressful condition. In this month’s featured case study, a pulp & paper wastewater treatment plant made a change to its papermaking process that changed the properties of the wastewater ...

Jan. 27, 2014

By LuminUltra Technologies Ltd.

STOP IT® Pipe Repair System assists in decommissioning project

Since 1986, InduMar Products Inc. has provided a unique solution with its STOP IT® Pipe Repair System. In refineries and chemical plants, where many miles of piping carry products that are often highly flammable, toxic or corrosive, the STOP IT provides a method to restore product and profit flow in minutes instead of the many hours required to cut out a pipe section, fabricate and install a ...

Jun. 1, 2013

By InduMar Products, Inc.

Aeration for Paper mill oxidation lagoons - Case study

Fluence designed a hybrid system featuring its TWISTER® and TORNADO®aerators to prevent sludge accumulation Fluence used a combination of Twister and Tornado aerators to keep solids suspended and prevent sludge accumulation in Pronal's oxidation lagoons. Paper and pulp industry factories are water-intensive and produce wastewater with high levels of pollutants. When the Pronal ...

Oct. 4, 2019

By Fluence Corporation

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