School of Environmental Science and Engineering, Shaanxi University of Science and Technology , Xi'an, China.
School of Arts and Sciences , Shaanxi University of Science and Technology , Xi'an, China.
Environ Sci Pollut Res Int. 2021 Sep;28(34):47126-47135. doi: 10.1007/s11356-021-13514-4. Epub 2021 Apr 22.
In this paper, combined with iron-carbon micro-electrolysis-Fenton method, the sludge was adjusted, and the cracking performance and dewatering performance of the sludge were studied. Single factor experiments show that when the amount of iron powder is 1.2 g/L, the reaction time is 45 min, H O When the dosage was 4.2 g/L, the protein and polysaccharide content in the sludge decreased by 46.8 and 20.6, respectively. Compared with the original sludge %. Compared with the original sludge, the COD of the supernatant of the solution increased by 10.1%. The minimum moisture content of the treated sludge cake was 69%, and the SRF value was significantly reduced.The lowest value is 2.687×10 m/kg. During the micro-electric dust removal sludge, the Fe can form a Fenton reagent with H O , thereby reducing the amount of additional iron powder that needs to be added in the conventional Fenton reaction. Three-dimensional fluorescence spectroscopy analysis showed that the humic acid and fulvic acid in the supernatant of the iron-carbon micro-electrolysis-Fenton conditioning solution increased more than after single electrolysis, indicating that the dehydration performance of the sludge was better.The Fenton reagent is formed , thereby reducing the amount of iron powder that needs to be added extra in the conventional Fenton reaction.
本文结合铁碳微电解-Fenton 法对污泥进行调理，研究了污泥的破解性能和脱水性能。单因素实验表明，当铁粉用量为 1.2 g/L，反应时间 45 min，H2O2 用量为 4.2 g/L 时，污泥中蛋白质和多糖含量分别下降了 46.8%和 20.6%，相较于原污泥分别下降了 46.8%和 20.6%。与原污泥相比，溶液上清液的 COD 增加了 10.1%。处理后的污泥饼的最低水分含量为 69%，SRF 值显著降低，最低值为 2.687×10 m/kg。在微电解除灰污泥过程中，Fe 可以与 H2O2 形成 Fenton 试剂，从而减少常规 Fenton 反应中所需添加的铁粉量。三维荧光光谱分析表明，铁碳微电解-Fenton 调理溶液上清液中腐殖酸和富里酸的含量增加超过单一电解后，表明污泥的脱水性能更好。形成 Fenton 试剂，从而减少常规 Fenton 反应中所需添加的铁粉量。
