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香港渠务署
发布日期:2013-5-23 15:32:42    该信息已被浏览了2857

 

 香港昂船州污水处理厂:是一座根据2021年预计平均旱天污水流量每日一百七十二万五千立方米而设计采用三氯化铁化学一级强化处理方法的中央污水处理厂。

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.

 

运行技术参数:

1.      处理每吨生活污水三氯化铁投加量仅为20ppm左右,药剂成本0.005/吨。

2.      已调好剂量的化学药剂(包括氯化铁及聚合物)被注入沉淀设施的入口处,并于快速混合池(共八池)内与污水混合

3.      现时,整个处理处理工序可消除污水中80%的悬浮物和70%的生化需氧量。

4.      抽水设施的总抽水量(进水量)为每秒三十九点七五立方米。

5.      收集的污泥和浮渣,在污泥处理设施内用三氯化铁加聚合物混合脱水,再被送到离心机,把污泥中的水份减少至合适程度,然后才运往堆填区填放。

6.      污泥处理设施每天可处理的污泥块高达900吨,脱水率达35%

7.      产生污泥含水率为         、用三氯化铁加聚合物脱水后污泥固含率为  ,经离心脱水后泥饼含水率为    

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.

 

 

 

 

 
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