Wastewater lagoon solids, phosphorus, and algae removal using discfiltration
Wastewater lagoon solids, phosphorus, and algae removal using discfiltration
复制标题
DOI：
10.2166/wqrj.2020.013
复制
发表时间：
2020-11-01
影响因子：
2
通讯作者：
Delatolla, Robert
中科院分区：
文献类型：
--
作者：
LeBlond, Guillaume;D'Aoust, Patrick M.;Delatolla, Robert
对微筛盘式过滤技术进行了中试研究。该试验被配置为处理来自城市废水多泻湖设施的流出物，该设施由两个兼性泻湖和第三个季节性曝气泻湖组成，该曝气泻湖被曝气以减轻硫化氢释放。10 μ m的过滤器，没有化学增强操作，演示60.1 +/- 22.6%的泻湖污水总悬浮固体（TSS）的去除率在操作期间没有曝气的第三泻湖。在排放之前，多氧化池系统的第三氧化池的曝气使得10 μ m滤布在固体去除方面无效。5 μ m的滤布即使在氧化塘曝气期间也能有效地非化学强化去除固体，去除68.2 +/- 9.85%的出水TSS。与10 μ m过滤器相比，5 μ m过滤器的更高性能是以较低的最大输送能力为代价实现的。10 μ m和5 μ m的过滤器分别使出水总磷（TP）浓度降低0.14和0.13 mg-P/L。表征为叶绿素α的藻类显示出从10.25 +/- 4.19 μ g/L的流入物浓度去除到10 μ m过滤器的4.61 +/- 1.28 μ g/L的浓度和5 μ m过滤器的4.10 +/- 0.65 μ g/L的浓度。
The microsieving discfilter technology was investigated at the pilot scale. The pilot was configured to treat the effluent from a municipal wastewater multi-lagoon facility consisting of two facultative lagoons and a third seasonally aerated lagoon that is aerated to mitigate hydrogen sulfide release. The 10 mu m filter, operated without chemical enhancement, demonstrates 60.1 +/- 22.6% removal of the lagoon effluent total suspended solids (TSS) during periods of operation without aeration of the third lagoon. Aeration of the third lagoon of the multi-lagoon system prior to discharge renders the 10 mu m filter cloth ineffective with respect to solids removal. The 5 mu m filter cloth performs effective nonchemically enhanced removal of solids even during aeration of the lagoon, removing 68.2 +/- 9.85% of effluent TSS. The greater performance of the 5 mu m filter was achieved at the expense of a lower maximum conveyance capacity than the 10 mu m filter. The 10 and 5 mu m filters decrease the effluent total phosphorus (TP) concentrations by 0.14 and 0.13 mg-P/L, respectively. Algae, characterized as Chlorophyll alpha, shows removal from influent concentrations of 10.25 +/- 4.19 mu g/L to concentrations of 4.61 +/- 1.28 mu g/L for the 10 mu m filter, and 4.10 +/- 0.65 mu g/L for the 5 mu m filter.