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The effects of anaerobic reactor post-treatments by rapid filtration systems and conventional techniques
Environmental Science and Pollution Research Pub Date : 2021-09-16 , DOI: 10.1007/s11356-021-16350-8
Cleber Pinto da Silva 1 , Sandro Xavier de Campos 1
Affiliation  

Although anaerobic reactors are an excellent alternative in the treatment of domestic effluents, they have the disadvantage of requiring post-treatment. Many technologies have been studied and, recently, rapid filtration systems have been presented as a viable alternative for post-treatment. This work compared post-treatment techniques for anaerobic upflow sludge blanket (UASB) reactors by rapid filtration systems (double filtration (DF); triple filtration with clinoptilolite (TFc); and triple filtration with activated carbon (TFac)) to conventional systems (facultative pond (FP); biological filter (BF); biological filter with recirculation and decantation (BFD)), verifying their potential for improvement of the final effluent quality. The UASB effluent post-treatments by FP, BF, BFD, DF, TFc, and TFac were evaluated. The removal of turbidity in both BFD and FP post-treatments was below 75%. The DF, TFc, and TFac treatments showed over 99% removal of the same parameters. COD removal in the FP, BF, and BFD post-treatments was over 10%, while in the DF, TFc, and TFac treatments, it was over 80%. The greatest total phosphorus removal was observed in TFc and TFac, whose values were over 99%. The best removal of ammoniacal nitrogen, 99% was observed in the TFc treatment. Regarding Al, Cd, Cr, Cu, Mn, Ni, Pb, and Zn removal, all rapid filtration systems showed better performance when compared to conventional systems. The DF, TFc, and TFac systems showed over 90% removal of most metals evaluated, while the FP and BF treatments presented values below 50% for most metals, and in the BFD system, the removal values were below 80% for most metals. The results indicate that rapid filtration systems were better at removing all evaluated parameters when compared to conventional systems.



中文翻译:

快速过滤系统和常规技术对厌氧反应器后处理的影响

尽管厌氧反应器是处理生活污水的绝佳替代方案,但它们具有需要后处理的缺点。已经研究了许多技术,最近,快速过滤系统已被提出作为后处理的可行替代方案。这项工作将厌氧上流式污泥床 (UASB) 反应器的后处理技术通过快速过滤系统(双重过滤 (DF)、斜发沸石三重过滤 (TFc) 和活性炭三重过滤 (TFac))与传统系统(兼性过滤)进行了比较。池(FP);生物过滤器(BF);带再循环和倾析的生物过滤器(BFD)),验证它们改善最终出水质量的潜力。评估了 FP、BF、BFD、DF、TFc 和 TFac 对 UASB 流出物的后处理。BFD 和 FP 后处理的浊度去除率均低于 75%。DF、TFc 和 TFac 处理显示相同参数的去除率超过 99%。FP、BF 和 BFD 后处理中的 COD 去除率超过 10%,而 DF、TFc 和 TFac 处理中的 COD 去除率超过 80%。在 TFc 和 TFac 中观察到最大的总磷去除,其值超过 99%。在 TFc 处理中观察到氨氮的最佳去除率为 99%。关于 Al、Cd、Cr、Cu、Mn、Ni、Pb 和 Zn 的去除,与传统系统相比,所有快速过滤系统都表现出更好的性能。DF、TFc 和 TFac 系统显示对大多数金属的去除率超过 90%,而 FP 和 BF 处理对大多数金属的去除率低于 50%,而在 BFD 系统中,大多数金属的去除率低于 80%。

更新日期:2021-09-16
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