Engineering Faculty, Department of Environmental Engineering, Cumhuriyet University, Sivas, Turkey.
Int J Environ Health Res. 2020 Feb;30(1):89-104. doi: 10.1080/09603123.2019.1576162. Epub 2019 Feb 13.
This study investigated the disintegration of sewage sludge through the Fenton process. The study was conducted by both the conventional Fenton-type process (CFP) (Fe/HO) and the Fenton-type process (FTP) (nZVI/HO). Experiments were performed using different pH, catalyst iron (Fe and nZVI), and HO dosages. Different parameters such as the degree of disintegration (DD), soluble chemical oxygen demand (SCOD), and particle size distribution were studied to investigate the effects of CFP and FTP processes on the disintegration of sludge. In addition to these parameters, scanning electron microscope, Fourier-transform infrared spectroscopy, and X-ray diffraction analyses were done to determine the changes in sludge characterization before and after disintegration. In the study, the optimal catalyst iron was determined to be (Fe and nZVI) 4 g/kg total solids (TS), and the HO dosage was determined to be 10 g/kg TS. The experiments were performed with consideration of the 1-h oxidation time. While DD was found to be 31.8% and the SCOD was found to be 364 mg/L for FTP, DD and SCOD were found to be 14.1% and 256 mg/L for CFP, respectively.
本研究通过芬顿工艺研究了污水污泥的解体。该研究采用传统芬顿型工艺（CFP）（Fe/H2O2）和芬顿型工艺（FTP）（nZVI/H2O2）进行。实验采用不同的 pH 值、催化剂铁（Fe 和 nZVI）和 H2O2 剂量进行。研究了不同参数，如解体度（DD）、可溶化学需氧量（SCOD）和颗粒尺寸分布，以研究 CFP 和 FTP 工艺对污泥解体的影响。除了这些参数外，还进行了扫描电子显微镜、傅里叶变换红外光谱和 X 射线衍射分析，以确定解体前后污泥特性的变化。在研究中，确定了最佳催化剂铁为（Fe 和 nZVI）4 g/kg 总固体（TS），H2O2 剂量为 10 g/kg TS。实验考虑了 1 小时的氧化时间。对于 FTP，DD 为 31.8%，SCOD 为 364 mg/L，而对于 CFP，DD 和 SCOD 分别为 14.1%和 256 mg/L。
