Study On Treatment Techniques Of Camphor And Fumaric Acid Waste Water

In the paper, fumaric, camphor and mixing waste water were treated with micro-electrolysis, microwave technique, catalytic oxidation and active carbon absorption. The treated waste water could reach the national discharge standard and COD of discharge water possibly could be under 50mg/L.The optimized condition was found through the study of two factors impacting micro-electrolysis, such as pH of waste water acid and the duration of exposure to air. on this basis, camphor, fumaric acid and mixing waste water were treated with micro-electrolysis technique. It made COD of waste water decrease evidently, and the degrading rates were 92.9%, 99.33% and 98.41% respectively.The optimized conditions of three kinds of waste water treated with microwave were gotten through the single factor and orthonormal test examining several impacting factors, such as pH of waste water, the volume of H2O2 , the quantity of active carbon, the power and time of microwave treatment. Under this condition, COD of fumaric acid, camphor and mixing waste water decreased 96.2mg/L 162.2mg/L and 145mg/L, respectively.The further treatment was carried out through adopting the active carbon absorption after COD of waste water treated by microwave reached the national discharge standard. The optimized conditions could be found through the study of several impacting factor, such as pH of waste water, the quantity active carbon and absorption time. After treatment of three kinds of waste water, COD of fumaric acid and mixing waste water decreased about 30mg/L and reached the discharge standard of reuse water, COD of camphor waste water decreased about 70mg/L and reached one level discharge standard of waste water.