Evaluation of Fenton Process as Treatment Method for Pulp and Paper Wastewater: A Case Study

Author : Bandoy, Thrysha Angcla
Major Adviser : Capunitan, Jewel A.
Committee Members : Migo, Veronica P.; Carpio, Rowena B.
Year : 2020
Month : July
Type : Thesis
Degree: BS
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The increasing demand and consumption rate of pulp and paper products have caused the pulp and paper industry to continuously develop in the past few years. However, discharge of high strength wastewater from pulping mills has become a major concern worldwide. One process being used to treat pulp and paper wastewater is the Fenton process, mainly classified as homogeneous and heterogeneous Fenton process. Modifications of the homogeneous Fenton process have also been developed to address its limitations. These modifications include phenomenon-assisted Fenton processes such as photo-Fenton and electro-Fenton process. In this study, various researches on the use of Fenton process for pulp and paper wastewater treatment were reviewed and evaluated. The studies showed that Fenton process gives treatment efficiencies ranging from 40 to 99% for pulp and paper wastewater treatment Variations in the treatment efficiencies can be attributed to the different initial pollutant concentration of the wastewaters used in the studies as well as to the different catalyst/H2O2 ratios used. However, the process has various limitations such as the narrow working pH range, sludge formation and high cost of treatment and solid catalysts. These limitations could be addressed by conducting more research on the development of low-cost effective heterogeneous catalysts as well as efficient electrode materials and light source. Generally, Fenton process was found to be effective in the degradation of organic pollutants present in pulp and paper wastewater.

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