The invention relates to the technical field of desulfurization
wastewater pretreatment, and discloses a
wastewater treatment device, which comprises a
configuration system, a storage
system, a firstconveying
system, a
neutralization system, a second conveying system and a
control system, and is characterized in that the
control system is electrically connected with a first liquid level meter, aconveying pump, a dosing pump and a PH
detector; the invention also discloses a control method for the
wastewater treatment system, which comprises the following steps: acquiring the pH value in the
neutralization tank, comparing the pH value with a preset pH value, and controlling the frequency of the dosing pump according to the pH value comparison result, thereby controlling the amount of limeemulsion added into the
neutralization tank by the
chemical storage tank; and obtaining liquid level information of the
medicine storage box, and controlling the opening and closing of the conveying pump according to the liquid level information. According to the device and the control method, the structure is simple, the operation is easy, the
lime emulsion preparation precision and the neutralization tank pH value regulation precision are improved, the labor intensity of personnel is reduced, and meanwhile, the safe and stable operation of a desulfurization wastewater pretreatment system isimproved.