Pulp and Paper Industry Wastewater: Source,Contents and Potential Solution

Case Studies & Applications of BDD Eletrodes

Efficient Pulp And Paper Industry Wastewater Treartment Process

Worldwide industrialization has contribute significant impacts environment. Among all those established industries, the pulp and paper industry, an industry sector established centuries before the massive economic boom, it holds substantial importance globally. However, this industry is accompanied by significant environmental concerns, particularly in terms of freshwater usage and pollution. Water is extensively utilized throughout various stages of pulp and paper production, including washing, pulping, bleaching, and paper-making. Available data indicates that the production of one ton of paper consumes approximately 250-300 m3 of water. As a result, a considerable volume of liquid waste containing harmful chemicals is discharged into the environment.

Wastewater from Paper Manufacturing Site

The pulp and paper industry generates xenobiotic compounds, including chlorinated lignin, chlorinated phenol, chlorinated resin acid, dioxins, chlorophenols, phenols, adsorbable organic halogens (AOX), extractable organic acids, halogens, and metal ions, among others. These compounds originate from lignin and other naturally occurring polymers. Inadequate or absent wastewater treatment systems in the industry contribute to the release of these compounds into water bodies. Consequently, the discharged wastewater becomes heavily contaminated with toxic compounds and lignin, resulting in high biochemical oxygen demand (BOD) and chemical oxygen demand (COD) levels. The dark brown color of the effluent harms aquatic life by inhibiting photosynthesis, altering water pH, and reducing dissolved oxygen levels.

The conventional methods of treating pulp and paper wastewater, including dissolved air flotation, coagulation, and biological treatment, are inadequate for meeting environmental standards. There is still a necessity for advanced wastewater treatment technologies that can be incorporated into current processes to enhance the quality of water at the end of the treatment.

Electrochemical techniques for water treatment present opportunities to discover more sustainable solutions for various water treatment applications. The primary component utilized in most electrochemical methods is electricity, which serves as the primary catalyst for the treatment process. While well-established electrochemical methods like electrocoagulation, electroflotation, electrodialysis, and electrochemical oxidation and reduction exist, there are also emerging methods that demonstrate promising potential for industrial-scale applications. These emerging methods aim to enhance pollutant removal rates, address limitations, broaden the range of applications for existing electrochemical water treatment techniques, and improve overall cost-effectiveness.

Recent research has uncovered that anodic oxidation using boron-doped diamond (BDD) electrodes achieves higher rates of organic carbon mineralization in aqueous solutions compared to commonly employed conventional chemical, UV-catalytic, or electrochemical oxidation methods. In addition, the BDD electrode exhibits shorter process durations and minimal process fouling in contrast to techniques involving granular activated carbon adsorption, UV-catalytic or chemical oxidation, or electrochemical oxidation using graphite, metals, or metal oxides as anodes. The exceptional performance of the BDD anodic oxidation process can be attributed to the low reactivity of the inert, hydrophobic diamond material, resulting in high over-potentials for oxygen and hydrogen evolution. These properties significantly reduce oxygen generation from the recombination of radicals formed during water electrolysis and enable a wide potential window for oxidation reactions between radicals and organic compounds. For instance, at a current density of 300 A·m−2, the hydroxyl concentration near the BDD surface can be maintained at 7.0 × 10−5 mol·dm−3, which is approximately 106 times higher than the hydroxyl concentrations observed in hydrogen peroxide oxidation processes.

Pulp And Paper Wastewater Treatment Case Studies

Find out how BDD electrode and BDD Pilot Module degrade obstinate toxic organic pollutants and compounds from pulp and paper industry wastewater and municipal solid waste.

Songyuan XXX Pulp Mill Wastewater Treatment Project

Summary of Boromond’s Pulp and Paper Mill Wastewater Treatment Project in Songyuan

Printing Wastewater Degradation Data Report

Field Data & Report Regarding Printing Wastewater

Explore More Case Studies In Different Industries

Boromond Dedicated To Develop & Design BDD Elecotrode And Wastewater Treatment System Based On BDD Materials. Find Out Cases And Projects With Abundant Data And Information About Wastewater Treatment Within Various Industries: