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231226s2023 xx |||||o 00| ||eng c |
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|a 10.2166/wst.2023.366
|2 doi
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|a eng
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1 |
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|a Shulin, Qin
|e verfasserin
|4 aut
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|a Effects of reaction conditions on the wet oxidation of excess sludge from the caprolactam wastewater treatment process
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|c 2023
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|a Text
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|a ƒaComputermedien
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|a Date Completed 30.11.2023
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|a Date Revised 30.11.2023
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|a published: Print
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|a Citation Status MEDLINE
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|a In this study, wet oxidation of excess sludge from the caprolactam wastewater treatment process was investigated. The effects of reaction conditions, including sludge concentration, the amount of sludge, reaction temperature and time and the oxygen supply amount, were discussed. The highest removal rates of chemical oxygen demand (COD) and volatile suspended solid (VSS) that can be attained at 78.6 and 89.3% were acquired separately under 260 °C for 60 min with an initial oxygen gas pressure of 1.3 MPa. The sludge was hydrolyzed and oxidized under hydrothermal conditions, producing small molecule organic acids, such as acetic, formic and oxalic acids, as the main products, which could be used as carbon sources for wastewater treatment. These results indicated that wet oxidation provides a favourable and feasible alternative method for the treatment of excess sludge from the coal chemical industry
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|a Journal Article
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|a Sewage
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|a Caprolactam
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|a Oxygen
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|a Zhongquan, Wang
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|a Weicheng, Zheng
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|a Yingxi, Zhang
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|a Xu, Zeng
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|i Enthalten in
|t Water science and technology : a journal of the International Association on Water Pollution Research
|d 1986
|g 88(2023), 10 vom: 02. Nov., Seite 2491-2498
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