دورية أكاديمية
Enhanced Wet Oxidation of Excess Sludge from Pharmaceutical Wastewater Treatment by NaOH
| العنوان: | Enhanced Wet Oxidation of Excess Sludge from Pharmaceutical Wastewater Treatment by NaOH |
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| المؤلفون: | Yuting Zhu, Xu Zeng, Kaiyu Fang |
| المصدر: | Catalysts, Vol 13, Iss 7, p 1070 (2023) |
| بيانات النشر: | MDPI AG, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Chemical technology LCC:Chemistry |
| مصطلحات موضوعية: | wet oxidation, catalyst, sodium hydroxide, pharmaceutical wastewater, Chemical technology, TP1-1185, Chemistry, QD1-999 |
| الوصف: | In the present study, enhanced wet oxidation of excess sludge from pharmaceutical wastewater by NaOH as an alkaline homogeneous catalyst was investigated. The experiments were carried out in a stainless-steel batch autoclave reactor. The highest volatile suspended solids (VSS) removal rate, 95.2%, was achieved at 260 °C within 60 min with an initial oxygen pressure of 1.0 MPa and NaOH 0.5 g·L−1. Simultaneously, the chemical oxygen demand (COD) removal rate of 57.3% was reached. The increase in volatile fatty acids (VFAs) demonstrated that the degradation of sludge was greatly accelerated by NaOH. Interestingly, the production of acetic acid, an intermediate by-product generated from the oxidation of organic compounds, increased significantly. These results illustrated that NaOH is a promising catalyst for the utilization of wet oxidation liquid of excess sludge as a carbon source for the treatment of wastewater. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2073-4344 |
| Relation: | https://www.mdpi.com/2073-4344/13/7/1070; https://doaj.org/toc/2073-4344 |
| DOI: | 10.3390/catal13071070 |
| URL الوصول: | https://doaj.org/article/d808e4e120b54bf2a63efeae688ecd02 |
| رقم الأكسشن: | edsdoj.808e4e120b54bf2a63efeae688ecd02 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 20734344 |
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| DOI: | 10.3390/catal13071070 |