| Peach aldehyde has wonderful like iris sweet fragrance fat, a peach dilute fragrance. Peach aldehyde can be used as soap, daily cosmetics and edible flavoring. A Chongqing enterprise of peach aldehyde produces in the process of the peach aldehyde wastewater, contains a large number of organic matter, and the high COD value of wastewater must be processed before discharging. This seriously restricts the development of peach aldehyde production, and make great pressure.to the surrounding environment.Chemical method, electrochemical and biological method are choosed to treat the peach aldehyde wastewater. The experiment shows that after optimizing the chemical method in various conditions, the highest removal rate can reach 36.14%, electrochemical at the anode material is made of stainless steel, pH value of 3.0, current 3.1 A, 13 times the diluted the conditions of aldehydes wastewater peach COD degradation can reach 93.1%. After aerobic treatment,peach aldehyde wastewater treated by anaerobic scheme when the volume of waste water and sludge than for about 4:1, residence time in 10 days, and comprehensive processing system is stable.The COD value of anaerobic exportwater is in 1300 mg/L or so, and The COD value of oxygen export water is under 200 mg/L.The COD degradation can rate of more than 98%.Chemical method, electrochemical and biological method are compared comprehensively, in COD degradation rate and consumption electric energy, and other comprehensive comparison. The chemical method processing efficiency is so low that it cannot achieve degradation purpose.Although electrochemical treatment have higher degradation efficiency, large energy consumption, goes against the industrial application .The biological method can effect the treatment of organic matter degradation peach aldehyde wastewater, and power consumption than electrochemical and biological method is finally to peach aldehyde wastewater by comprehensive treatment. And carries on the preliminary process design, equipment, a total investment of 598400 yuan, operation cost is 180 yuan/d, average every tons of waste water treatment cost $19.Through the experiment and design,we have achieved peach aldehyde wastewater treatment scheme, effective degradation of organic matter the waste water, the processing of peach aldehyde can waste water after direct emissions to park city processing system, which can effectively solve the peach aldehyde production of wastewater treatment problem, easing the pressure on the environment around the factory. |
