Modularized wastewater solid and oil removal method and device

The invention relates to a modular solid and oil removal method and device for wastewater, and provides a modular solid and oil removal method for wastewater, which comprises the following steps: (a) solid and oil-containing wastewater is pumped out from the bottom of a water scrubber and sent to a feeding cavity, the wastewater enters a filter module and penetrates through a filter material bed layer from top to bottom, and the solid and oil-containing wastewater is separated from the filter material bed layer by utilizing the interception and adsorption effects of the filter material bed layer; solid-phase impurities in water are adsorbed in the filter material bed layer; (b) the filtered water enters a coalescence unit, and fine oil drops in the water are aggregated to grow by utilizing the adsorption and coalescence effects of a fiber coalescence module on oil substances; (c) carrying out gravity settling separation on the aggregated and grown oil drops to realize oil-water separation; and (d) continuousl