IQS School of Engineering, Universitat Ramon Llull, Via Augusta 390, 08017 Barcelona, Spain; Department of Industrial Engineering, Università degli Studi di Padova, Via Marzolo 9, 35131 Padova, Italy.
Catalan Institute for Water Research (ICRA), H2O Building, Scientific and Technological Park of the University of Girona, Emili Grahit 101, 17003 Girona, Spain.
J Environ Manage. 2019 Jun 15;240:475-484. doi: 10.1016/j.jenvman.2019.02.116. Epub 2019 Apr 6.
Greywater treatment and reuse can be considered a promising option, in particular in water scarcity affected areas. In this work a waste material, namely recycled corrugated wire hose cover, was applied as an alternative and cheap carrier in a sequencing batch biofilm reactor (SBBR) for greywater treatment. The bioreactor performance was studied in terms of organic matter, nitrogen and micropollutant removal. Four operational stages were investigated: i) inoculation of the carriers; ii) greywater treatment with suspended biomass; iii) synthetic and iv) real greywater treatment with inoculated carriers in the SBBR. The SBBR could treat real greywater showing high removal efficiencies for COD (86.5 ± 5.8%), ammonium (98.4 ± 1.4%) and total nitrogen (71.4 ± 8.2%). The obtained efficiencies were similar to the ones obtained with commercial carriers and to other treatments such as MBBR or MBR. In terms of micropollutants, 7 out of 13 detected micropollutants were highly removed (efficiency higher than 85%) while 5 of them (ofloxacin, metoprolol acid, venlafaxine, iopromide and hydrochlorothiazide) were found to be highly recalcitrant to the treatment.
灰水的处理和再利用可以被认为是一种很有前途的选择，特别是在缺水地区。在这项工作中，一种废弃材料，即回收波纹铁丝管套，被应用于序批式生物膜反应器（SBBR）中，作为一种替代的、廉价的载体，用于灰水的处理。从有机物、氮和微量污染物的去除方面研究了生物反应器的性能。考察了四个操作阶段：i）载体接种；ii）悬浮生物量处理灰水；iii）合成灰水；iv）接种载体的实际灰水在 SBBR 中的处理。SBBR 可以处理实际的灰水，对 COD（86.5±5.8%）、氨氮（98.4±1.4%）和总氮（71.4±8.2%）的去除率很高。获得的效率与使用商业载体和其他处理方法（如 MBBR 或 MBR）获得的效率相似。就微量污染物而言，13 种检测到的微量污染物中有 7 种（去除效率高于 85%）被高度去除，其中 5 种（氧氟沙星、美托洛尔酸、文拉法辛、碘普罗胺和氢氯噻嗪）被发现对处理具有很强的抗药性。
