Oilfield silicon-containing water compound treatment device

The invention relates to the technical field of oilfield recovered water treatment, in particular to an oilfield silicon-containing water compound treatment device. An air flotation machine of the device is connected with user incoming water, oil and suspended matter storage tank and a settling unit, the settling unit is connected with a sludge treatment system and connected with a filtering unitthrough a raw water pump, the filtering unit comprises a quartz sand filter and an activated carbon filter and is connected with a middle water tank, the middle water tank is connected with a boosterpump, the booster pump is connected with a cartridge filter, and the cartridge filter is connected with an ultra-filtration membrane element. By the aid of a composite treatment technique of pretreatment, ultra-filtration and ion exchange, a lot of ion silicon is transformed into easily-removed colloidal silica, the device is high in silicon removal rate and low in use cost, production requirements are met, by the aid of w