Skid-mounted underground water treatment device and water treatment process

 

   

A water treatment process using the groundwater skid-mounted treatment device comprises a filtering process, a backwashing process and a recycling process; the filtering process comprises the following steps: the method comprises the following steps that (1) underground water conveyed from a water source well is aerated and then directly enters a manganese sand filter tank for deironing, filtered effluent of a manganese sand filter device enters a fine filter tank, and filtered effluent of the fine filter tank enters a purified water buffer tank for buffering; the back washing process comprises the following steps: boosting the pressure of water in a backwashing pump purified water buffer tank, and performing backwashing regeneration on filter materials in a manganese sand filter tank and a fine filter tank; the recovery process comprises the following steps: sludge at the bottoms of the manganese sand filter tank and the fine filter tank in the filtering process enters a recycled water buffer tank through a discharge pipe for buffer precipitation, backwash drainage in the backwash process enters the recycled water buffer tank for buffer precipitation, and supernate enters the front section of the manganese sand filter device after being boosted by a recycle water pump and is reprocessed by a manganese sand deironing device and the fine filter device; and (4) periodically sending sludge precipitated at the bottom of the recycling water buffer tank to a sewage disposal tank, and naturally evaporating and drying.Furthermore, the water treatment process also comprises a dosing flow, wherein the dosing flow comprises a bactericide dosing flow and a coagulant dosing flow; adding the bactericide into the filtered water main pipe; adding coagulant into the back-flushing water outlet main pipe.