预处理系统一般包括原水泵、加药装置、石英砂过滤器、活性炭过滤器、精密过滤器等。
Pretreatment system generally includes the original pumps, dosing devices, quartz sand filter, activated carbon filter, precision filter and so on.
对大庆油田石英砂过滤器结构进行改造，并应用悬浮污泥过滤技术对油田污水进行了深度处理，试验取得了良好的处理效果。
With the structural modification of quartz sand filter in Daqing oil field, and using the suspended sludge filtration in treating oilfield wastewater, the good experimental results are obtained.
多介质过滤器：用无烟煤、石英砂过滤介质去除水中的固体悬浮物。
Milti - medium filter: filter the solid suspend thing use the anthracite, quartzite filter medium.
多介质过滤器：用无烟煤、石英砂过滤介质去除水中的固体悬浮物。
Milti - medium filter: filter the solid suspend thing use the anthracite, quartzite filter medium.
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