香港渠務署

香港昂船州污水處理廠：是一座根據2021年預計平均旱天污水流量每日一百七十二萬五千立方米而設計采用三氯化鐵化學一級強化處理方法的中央污水處理廠。

Stonecutters Island Sewage Treatment works: Is acts according to in 2021 to estimate the average dry weather sewage current capacity 1.725 million cubic meters but to design every
day uses an iron trichloride chemistry level of strengthening processing method the central sewage treatment plant.

◆運行技術參數：

1.處理每噸生活污水三氯化鐵投加量僅為20ppm左右，藥劑成本0.005元/噸。

2.已調好劑量的化學藥劑（包括氯化鐵及聚合物）被注入沉淀設施的入口處，并于快速混合池（共八池）內與污水混合。

3.現時，整個處理處理工序可消除污水中80%的懸浮物和70%的生化需氧量。

4.抽水設施的總抽水量（進水量）為每秒三十九點七五立方米。

5.收集的污泥和浮渣，在污泥處理設施內用三氯化鐵加聚合物混合脫水，再被送到離心機，把污泥中的水份減少至合適程度，然后才運往堆填區填放。

6.污泥處理設施每天可處理的污泥塊高達900噸，脫水率達35%。

7.產生污泥含水率為、用三氯化鐵加聚合物脫水后污泥固含率為，經離心脫水后泥餅含水率為。

Operation Technical Parameter:

1. Processes each ton sanitary sewage iron trichloride to throw the increment is only about 20ppm.

2. Chemicals (ferric chloride and polymer) are injected at the inlet to the works at required dosages and mixed with the sewage inflow in rapid mix chambers (8 no.in all).

3. The process removes 80% of the suspended solids and 70% Biochemical Oxygen Demand at presence.

4. The total capacity of pumping facilities is 39.75 cubic meters per second.

5.The sludge and scum received at the sludge treatment facilities are conditioned with polymer and pumped into centrifuges(10no.in all)where the content is reduced to a level which
will make it acceptable for disposal at landfill sites.

6. The facilities have a total production capacity of 900 tonnes of sludge cakes at 35% dryness per day.

7. Has the sludge moisture content for, adds the polymer dehydration after the iron trichloride sludge containing rate is firmly, after the centrifugal dehydration the filter cake moisture
content is.