Bus Agnieszka, Karczmarczyk Agnieszka
Warsaw University of Life Sciences - SGGW, Faculty of Civil and Environmental Engineering, Department of Environmental Improvement, Nowoursynowska 166, 02-787 Warsaw, Poland E-mail:
Water Sci Technol. 2017 Jun;75(11-12):2554-2561. doi: 10.2166/wst.2017.134.
The research investigated the implementation of suspended reactive filters to support the phosphorus (P) removal efficiency of constructed wetlands (CWs). The reactive material (RM) used in this study was autoclaved aerated concrete (AAC). The laboratory experiment consists of four plastic boxes filled with the volume of 10 L of artificial P solution with three variants of RM mass to volume ratio: 1:1 (g:L), 5:1 (g:L), 10:1 (g:L), and the blind probe 0:1 (g:L) as a reference. AAC of different weights (10, 50 and 100 g) was wrapped in a filter bag, put into boxes, and suspended. After 30 days of the laboratory experiment, AAC was able to reduce the P-PO concentration from 2.972 mg·L to: 0.341 mgPO-P·L, 0.006 mgPO-P·L and 0.004 mgPO-P·L for 10 g, 50 g and 100 g mass variant, respectively. This concentration reduction corresponds to unit sorption of: 2.53 mgP-PO·g, 0.58 mgP-PO·g and 0.30 mgP-PO·g for 10 g, 50 g and 100 g, respectively. Based on the obtained data, the CW supporting filter was dimensioned to reduce the outflow P concentration to 0.01 mg·L. P removal efficiency prediction was calculated for Cetynia River, Poland.
该研究调查了悬浮式反应滤池的实施情况，以提高人工湿地（CWs）的磷（P）去除效率。本研究中使用的反应材料（RM）是蒸压加气混凝土（AAC）。实验室实验包括四个塑料箱，每个箱中装有10 L的人工磷溶液，反应材料质量与体积比有三种变体：1:1（g:L）、5:1（g:L）、10:1（g:L），还有作为参照的空白对照0:1（g:L）。将不同重量（10 g、50 g和100 g）的AAC包裹在滤袋中，放入箱中并使其悬浮。经过30天的实验室实验，对于10 g、50 g和100 g质量变体的AAC，其分别能够将磷-磷酸根（P-PO）浓度从2.972 mg·L降低至：0.341 mgPO-P·L、0.006 mgPO-P·L和0.004 mgPO-P·L。这种浓度降低分别对应于10 g、50 g和100 g的单位吸附量：2.53 mgP-PO·g、0.58 mgP-PO·g和0.30 mgP-PO·g。根据获得的数据，对人工湿地支撑滤池进行尺寸设计，以使流出物中的磷浓度降低至0.01 mg·L。并对波兰Cetynia河的磷去除效率进行了预测。
