臺北自來水園區環境教育中心

在淨水處理過程中，產生之沉澱淤泥及快濾反沖洗砂廢水等，均排入汙水池，再利用汙水泵將淤泥抽送至淤泥處理廠。淤泥在處理廠中將經由濃縮、脫水等程序，壓製成淤泥餅，並將淤泥餅以再利用方式處理，即廢料變原料，使得淨水場成為百分之百的零汙染、零排放之環保工業。

在民國91年以前淤泥餅的處置方式，是委託業者定期清運至內湖山豬窟垃圾掩埋場，免費當作掩埋覆土使用；92年以後，山豬窟掩埋場覆土已足夠。自來水事業處積極尋求其他合法且較經濟的處置方式，陸續開發作為製磚與水泥製程的部分原料。不但省下處理費用，也因淤泥餅再利用的效益，大幅降低清運成本。
All the settled sludge and the rapidly filtered backwash water produced in the process of water purification are discharged into the sewage pool, and the sludge is then pumped by the sewage pump to the sludge processing plant where it is thickened, dehydrated, and compressed into sludge cakes. The cakes are then recycled. Since the process turns waste into useful materials, the water purification station represents a 100% zero-pollution and zero-discharge green industrial operation.
Before 2002, various companies were commissioned to regularly transport the sludge cakes to the Shanzhuku Landfill site in Neihu, for free use as landfill cover soil. In 2003 the Shanzhuku Landfill had sufficient cover, and the Taipei Water Department began looking for other legal and economical ways to deal with the cakes. Their use as raw materials in the making of bricks and cement not only saves expenses dealing with the cakes, but also significantly reduces the shipping costs involved for the cakes to be recycled.