pulp wastewater Articles
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Removal performance of lignin compound from simulated pulping wastewater using emulsion liquid membrane process
Removal of lignin from pulping wastewater has considerable interest due to high market value in conversion to external biofuel and specialty chemicals. Thus, it is important to remove lignin for increasing revenue while reducing environmental problems. Removal of lignin from simulated pulping wastewater using emulsion liquid membrane (ELM) was proposed in this study. Thereby, optimum removal ...
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Treatment of cornstalk fibrous pulp wastewater using Anaerobic Baffled Reactor (ABR): effect of shock loading rates
The treatment of cornstalk fibrous pulp wastewater in Anaerobic Baffled Reactor (ABR) was investigated. The effect of shock loading rates, such as various hydraulic and Organic Loading Rates (OLRs), on the performance of ABR was assessed. When the influent COD concentration was kept 4000 mg/L, the Hydraulic Retention Time (HRT) was decreased from 40 h to 18 h, the removal efficiency of COD was ...
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The Solution of Papermaking Wastewater Treatment Process
Papermaking wastewater is an important factor in polluting water sources, and it is also a kind of industrial pollution source. Therefore, it is particularly important to realize the cleaning and resource utilization of the papermaking production process.The papermaking wastewater mainly comes from pulping wastewater from pulping workshops and papermaking wastewater from papermaking ...
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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 ...
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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 ...
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An Overview of Corrugator Paper Pulp Wastewater Treatment
Wastewater Treatment Success Stories Class 'A' Wasterwater Treatment Facility Printing Facility - 40% Cost Reduction Zero Discharge This company imports corrugated board and prints the labels using a flexographic machine. The facility had a wastewater treatment system using the traditional liquid chemistry of aluminum chloride, caustic for pH adjustment, ...
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Paper Industry Wastewater
Standard discharge, reclaimed water reuse and zero effluent discharge 1. Pulping Wastewater is the most difficult wastewater to be treated in the papermaking industry. The organic pollutants and inorganic salts are high in content, complex in composition, high in hardness, high in costs. The technical staff of JIUWU work with experts from the Institute of Membrane Science and Technology of ...
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Paper Industry Wastewater
Standard discharge, reclaimed water reuse and zero effluent discharge 1. As for paper mill wastewater treatment, pulping wastewater is the most difficult wastewater to be treated in the papermaking industry. The organic pollutants and inorganic salts are high in content, complex in composition, high in hardness, high in costs. The technical staff of JIUWU work with experts from the Institute of ...
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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) ...
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Paper Industry Wastewater
Standard discharge, reclaimed water reuse and zero effluent discharge 1. As for paper mill wastewater treatment, pulping wastewater is the most difficult wastewater to be treated in the papermaking industry. The organic pollutants and inorganic salts are high in content, complex in composition, high in hardness, high in costs. The technical staff of JIUWU work with experts from the Institute of ...
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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, ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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Biodegradability and toxicity assessment of bleach plant effluents treated anaerobically
As part of an experimental project on the treatment of bleach plant effluents the results of biodegradability and toxicity assessment of effluents from a bench-scale horizontal anaerobic immobilized bioreactor (HAIB) are discussed in this paper. The biodegradability of the bleach plant effluents from a Kraft pulp mill treated in the HAIB was evaluated using the modified Zahn-Wellens test. The ...
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Simultaneous precipitation of phosphorus in a kraft pulp mill wastewater treatment plant
Simultaneous precipitation (SP) using iron sulfates in the secondary treatment of elemental chlorine-free (ECF) kraft pulp mill wastewater was studied. In short-term pilot plant studies phosphorus reduction was improved from 58% up to 81% by adding 10 mgFe/L ferrous sulfate in the activated sludge (AS) process. The phosphorus reduction in full-scale experiment was about 80% ...
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Lipid profile characterization of wastewaters from different origins
Lipids in wastewaters are potential raw material for renewable diesel, but may complicate biological treatment of wastewaters. The lipid composition of palm oil mill effluent (POME), chemithermomechanical pulp mill (CTMP) wastewater and municipal wastewater (MWW) was studied with a combination of thin-layer chromatography and nuclear magnetic resonance. Gravimetrically determined content of ...
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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 ...
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