2000年5月，马尔科岛石灰软化水处理厂（LSWTP）通过添加a1，从每天5.0万加仑扩大到每天667万加仑（mgd）。67mgd浸入式膜超滤（UF）系统。马可岛LSWTPwas之前根据传统砂滤能力将产量限制在5.0 mgd。该设施处理来自佛罗里达州科利尔县马尔科湖的地表水。来自马尔科湖供水的原水被泵送9.5英里至马尔科岛LSWTP。 原水水源含有较高的颜色（>40 cpu）、总有机碳（TOC）（>12 mg/L）、UV-254（0.181）、硬度（>350 mg/L CaCO3）和中等的总溶解固体（TDS）（>900 mg/L）。在马科岛石灰软化工艺下游实施1.67 mgd的全尺寸UF工艺后，平均过滤浊度为0.05 NTU，平均砂滤出水浊度为0.1 NTU。包括9个参考文献、表格和图表。

In May 2000 the Marco Island Lime Softening Water Treatment Plant (LSWTP) wasexpanded from 5.0 to 6.67 million gallons per day (mgd) with the addition of a1.67 mgd immersed membrane ultrafiltration (UF) system. The Marco Island LSWTPwas previously limited to 5.0 mgd of production based on conventional sand filtercapacity. This facility provides treatment of surface water from the Marco Lakesin Collier County, Florida. Raw water from the Marco Lakes supply is pumped 9.5miles to the Marco Island LSWTP. The raw water source contains elevated color(>40 cpu), total organic carbon (TOC) (>12 mg/L), UV-254 (0.181), hardness (>350mg/L as CaCO3), and moderate total dissolved solids (TDS) (>900 mg/L).Implementation of a full-scale 1.67 mgd UF process downstream of the Marco Islandlime softening process demonstrated an average filtered turbidity of 0.05 NTUversus an average sand filtered finished water turbidity of 0.1 NTU. Includes 9 references, tables, figure.