An example of wastewater treatment project in pharmaceutical industrial park
According to the characteristics of the wastewater in a pharmaceutical industrial park in Shan-dong province such as:high COD and ammonia nitrogen concentrations,high salinity and poor biodegradability,a combined process of ammonia distillation-MVR evaporative crystallization-catalytic ozonation-A2/O-advanced treatment was adopted,and the design treated water volume was 500 m3/d.The engineering practice showed that,the removal rates of COD,ammonia nitrogen,total nitrogen,total phosphorus and SS by the said process reached 97.1%、89.9%、85.9%、93.5%and 96.3%respectively,the effluent water quality met the requirement of A-level discharge standard of GB/T 31962-2015 Wastewater quality standards for discharge to municipal sewers.
pharmaceutical wastewatercoagulating sedimentationammonia distillationMVR evaporation crystallizationozonationA2/O process