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| Study on Effect of Graphene on Middle Stage Pulping Effluent Treatment by Fenton Oxidation |
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| DOI：10.11981/j.issn.1000-6842.2018.04.1 |
| Key Words:graphene; Fenton oxidation; middle stage pulping effluent; CODCr removal rate; UV254 value |
| Fund Project:制浆造纸科学与技术教育部重点实验室开放基金（KF201509）；山东省自然科学基金（ZR2017MC032）。 |
| Author Name | Affiliation | | YANG Da1 | 1.College of Environment and Safety Engineering， Qingdao University of Science & Technology， Qingdao， Shandong Province，266042 | | ZHANG Hao1 | 1.College of Environment and Safety Engineering， Qingdao University of Science & Technology， Qingdao， Shandong Province，266042 | | LAN Hui-xia1，2，* | 1.College of Environment and Safety Engineering， Qingdao University of Science & Technology， Qingdao， Shandong Province，266042
2. Key Laboratory of Pulp and Paper Science and Technology of Ministry of Education， Qilu University of Technology, Ji’nan， Shandong Province， 250353 | | QI You-xiao1 | 1.College of Environment and Safety Engineering， Qingdao University of Science & Technology， Qingdao， Shandong Province，266042 | | WANG Wei1 | 1.College of Environment and Safety Engineering， Qingdao University of Science & Technology， Qingdao， Shandong Province，266042 | | ZHANG Heng3 | 3.College of Marine Science and Biological Engineering， Qingdao University of Science & Technology， Qingdao， Shandong Province， 266042 |
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| Abstract: |
| The orthogonal test was used to investigate the significances of the influencing factors in Fenton oxidation treatment of middle stage pulping effluent with the existence of graphene. The results showed that the important degree of various factors was as follows: pH value> graphene dosage> H2O2 dosage> the molar ratio of Fe2+ to H2O2. Then， effects of pH value， the graphene and H2O2 dosages were studied using single factor test. It showed that the optimum pH value changed from 4 to 6 after the addition of graphene. The optimum grapheme dosage was 3 mg/L. The treatment effect increased continuously and then stabilized with the H2O2 dosage increasing and the H2O2 dosage was preferred to be 7 mL/L. The first-order reaction kinetics equation was conformed for Fenton reaction system. The reaction rate constant k of the Fenton system with the existence of graphene was up to 0.0632 min-1， which was larger than that of the traditional Fenton system. The pollutant degradation rate was obviously accelerated by graphene． |
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