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| Study on Malodorous Gas Production Factors in Waste Fiber Reuse Process |
| Received:February 11, 2023 |
| DOI：10.11980/j.issn.0254-508X.2023.11.011 |
| Key Words:waste paper fiber wet-end white water anaerobe malodorous gas |
| Author Name | Affiliation | Postcode | | LIU Chang* | College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, Zhejiang Province, 310018 | 310018 | | ZHANG Yifan | College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, Zhejiang Province, 310018 | 310018 | | HUANG Shancong | College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, Zhejiang Province, 310018 | 310018 | | ZHANG Xiaohong | Zhejiang Jingxing Paper Co., Ltd., Jiaxing, Zhejiang Province, 314214 | 314214 | | DOU Sheng | Shanghai Jinhua Industrial Co., Ltd., Shanghai, 202150 | 202150 | | XIA Xinxing | College of Textile Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, Zhejiang Province, 310018 | 310018 |
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| Abstract:In this study， the concentration of malodorous gases was detected by pumping gas detector， the effects of wet-end white water dosage， starch concentration， and Na2SO4 concentration on the release of malodorous gases in the reuse process of waste paper fiber were investigated. The results showed that the release of total volatile organic compounds （TVOC）， H2S and NH3 was almost 0， respectively， when the dosage of wet-end white water was 0. Meanwhile the dosage of wet-end white water was increased， it would result in a significant increase in the release of malodorous gases in the pulp， which proofed that the proliferation of microorganisms was one of the main factors affecting the release of malodorous gases. With the increase of starch concentration， the release of H2S and NH3 increased obviously， but the release of TVOC was basically the same as that without starch. The production of TVOC， H2S and NH3 in the plup was promoted by Na2SO4， and the release of malodorous gases increased significantly， with the increase of Na2SO4 concentration in the plup. |
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