The study of using ozonation method to accelerate the nitrification of kitchen waste liquid fertilizer

• Main Authors: Bing-Syue,Li, 李秉學
• Other Authors: Yuan-ShengLi
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/33709113219137970361

碩士 === 國立宜蘭大學 === 環境工程學系碩士班 === 103 === Ozone dissolved ozone aeration is 13 times higher than the oxygen in the water, so when the use of aeration way, when the ozone is dissolved in water. Ozone can kill bacteria in the water, oxidize ammonia in the water, and decompose chlorine and other effects. When the water contains oxygen, the water can be called ozone dissolved water. The study use ozonation to accelerate the nitrification of liquid fertilizer of food residuals, which was originated from Luodong Township organic waste treatment plant. The study was aimed to understand than kitchen nitrification of ammonia nitrogen fertilizer degree of change after ozone oxidation. The study was divided into two parts ozone flow of 4L / min, 8L / min. It contains large amounts of ammonia in the liquid fertilizer. By oxidation, nitrification to nitrate nitrogen, nitrite nitrogen after the ozone aeration.Therefore use Environmental Analysis Laboratory announcement method to the concentration detection. At different concentrations and flow conditions, the observed changes in the concentration of fertilizer in the test items. The study was divided into two parts ozone flow of 4L / min, 8L / min and liquid fertilizer concentration dilution 1x, 2x, 4x and 0,10,20,30,40,60,90,120 minutes. The bottom tube of sampling ports got sampled in the reactor for the following analysis: Ammonia Nitrogen detection methods - indophenol colorimetry、Nitrite nitrogen in water detection method – spectrophotometry、Nitrate in Water Detection - spectrophotometer, COD detection method – closed dichromate reflux method, the conductivity of the water determination - conductivity meter method, the hydrogen ion concentration index of water (pH value) Determination of the water absorbance measurement method analysis. That data using the order reaction assessment and integration, that to observe the effectiveness of ozone aeration in the liquid fertilizer.