The invention discloses a
resource utilization method of desulfurization waste liquid and chlorination
slag, which is characterized in that
carbide slag is used as a desulfurizer for desulfurization of
sulfur-containing
flue gas, and the generated desulfurization waste liquid is used for treatment of the chlorination
slag; chlorination slag
slurry and primary filter residues are obtained after the chlorination slag is subjected to dilute acidizing, thickening and filtering, and the primary filter residues are conveyed to a power
plant for power generation; the method comprises the following steps of: firstly, neutralizing chlorinated slag
slurry by using desulfurization waste liquid for the first time, then, adding one or more of
carbide slag,
lime or caustic soda for the second time of
neutralization to enable the pH value of the chlorinated slag
slurry to be 7-8 to obtain neutralized slag slurry, finally, filtering the neutralized slag slurry to obtain secondary filter residues and secondary filtrate, and adding
cement and gravel into the secondary filter residues to prepare concrete blocks. The secondary filtrate is sent to a
sewage purification
system to be treated and then reused to a dust collection slag washing procedure and a concrete block preparation procedure; the method not only scientifically treats the desulfurization waste liquid, but also realizes
resource utilization of the chlorination slag, and reduces the treatment cost of the desulfurization waste liquid and the chlorination slag.