| abstract |
The invention belongs to the technical field of waste water treatment, in particular to a process for the recycling and reuse of furan ammonium salt production waste water, which solves the lack of economical and effective treatment technology for furan ammonium salt production waste water in the prior art, and the traditional distillation treatment is prone to flooding phenomenon, and the by-product salt requirements are not up to standard and other problems, the recycling process of the furan ammonium salt production wastewater includes the following steps: taking coal gangue for calcination, grinding, reacting with hydrochloric acid, and then performing thermal decomposition and post-treatment to obtain the settling agent Adjust the pH value of wastewater, add sedimentation agent to obtain primary treatment water; use biofilm filter to obtain secondary treatment water after anaerobic reaction; add sedimentation agent to obtain tertiary treatment water; add adsorbent after ozone oxidation reaction, static Filtration and distillation complete the recycling and reuse process of furan ammonium salt production wastewater. The process of the invention is easy to operate, the salt content of the effluent is as low as 2%, the COD value is significantly reduced, the effluent is clear and transparent, and there is no visible impurity and variegation. |