| URN | etd-0727112-175021 | Statistics | This thesis had been viewed 552 times. Download 0 times. |
| Author | Jung-Luen Li | ||
| Author's Email Address | No Public. | ||
| Department | Institute of construction technology | ||
| Year | 2011 | Semester | 2 |
| Degree | Master | Type of Document | Master's Thesis |
| Language | zh-TW.Big5 Chinese | Page Count | 92 |
| Title | The Application of Microbiological immobilization technology to The Removal of Carbon and Nitrogen from Water | ||
| Keyword | |||
| Abstract | In this study, after the acclimation of activated sludge, nitrifying sludge and anammox sludge, frozen embedding technique was used to prepare the immobilized cells respectively. The immobilized cells were placed into the column-type continuous flow reactor and the Sequencing Batch Reactor (SBR) after a period of time. The immobilized cells in the column-type reactor comprised of three layers, the first layer is decomposition of organic carbon to the activated sludge immobilized cells, and then through the cells of the nitrifying bacteria immobilized nitrification, and finally by anammox bacteria immobilized cells denitrificationconvert the ammonia into nitrogen, while SBR is equipped with an agitator and aerator, the pilot initially aerator oxygen dissolved in water, activated sludge immobilized cell decomposition of organic carbon, and then through the nitrifying bacteria immobilized cellsnitrification, and denitrification of ammonia to convert nitrogen by anaerobic ammonium oxidizing bacteria immobilized cells. Experiment, monitoring of temperature, dissolved oxygen and pH, and Timing acquisition IC samples were analyzed for ammonia nitrogen, nitrite nitrogen and nitrate nitrogen. The results showed that the gradual reduction the batch domestication of the nitration bacteria sample for ammonia nitrogen, nitrate nitrogen is constantly increasing, this is the typical nitration reaction; batch domestication of the anaerobic ammonia oxidation bacteria apparent abatement of ammonia in the sample analysis However, for the production of nitrate nitrogen is less than nitrifying bacteria and denitrifying bacteria at. Anammox bacteria in the batch domestication due to a longer generation time to time, need more than about six months, only a slight reaction. Found that the collapse of the structure or reduce activity after completion of the immobilized nitrifying bacteria immobilized cell batch domesticated as long as there is sufficient dissolved oxygen and ammonia there is a significant nitrification are aerobic bacteria; but the input columnreactor only to find the bottom of the activated sludge layer due to lack of dissolved oxygen in the supply of organic carbon can not be completely decomposed, thus limiting the middle and upper immobilized nitrifying bacteria and anaerobic ammonium oxidizing bacteria of nitration and denitrification. Column reactor removal efficiency as expected. SBR is the use of microcomputer timer to do the aeration control to achieve nitration and denitrification is indeed feasible in the same slot, but the test late after its accession to the organic carbon but the loss of the ability of nitration and denitrification, the removal of organic carbon is not as expected, and prepared to complete theimmobilized particles need to have a shear force, able to resist the powerful mixer in order to resist the shear forces in the immobilized cells increased the number of warm and soaked in calcium chloride forming liquid, in order to strengthen the structure of the immobilized cells, but relatively also suffered a slight activity. If the reactor mixing blades to make improvements, or mixing blades into the immobilized cell module, the other to do more sophisticated conditions of DO and pH control can improve at the same time in addition to carbon, nitrogen and feasibility. |
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| Advisor Committee | |||
| Files | indicate not accessible | ||
| Date of Defense | 2012-06-15 | Date of Submission | 2012-07-28 |