Boiler exhaust gas and wastewater treatment technology
A technology for treating process and boiler waste gas, which is applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc. Large quantity and other problems, to achieve the effect of small maintenance, long service life and low operating cost
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[0018] A treatment process for boiler waste gas and wastewater includes the following steps:
[0019] (1) The wastewater enters the coagulation reaction tank 1. Sodium hydroxide is first added, and then the coagulant polyaluminum chloride and the coagulant polyacrylamide are added to the wastewater. The particulate and colloidal pollutants in the wastewater are first Under the action of polyaluminum chloride, a large number of small granular solid suspensions are formed, and then the solid suspensions formed in the wastewater are further polymerized under the action of polyacrylamide to form larger particles of flocs; among them, the inside and outside of the coagulation reaction tank The air compressor is connected, so that the input coagulant polyaluminum chloride and coagulant polyacrylamide can achieve rapid stirring in the wastewater;
[0020] (2) The effluent from the coagulation reaction tank 1 enters the sedimentation tank 2 for solid-liquid separation, and the effluent fro...
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