本文選題：厭氧氨氧化 + 脫氮　； 參考：《云南大學》2016年碩士論文

【摘要】：厭氧氨氧化技術是一種新型生物脫氮技術,它不用工程曝氣,不用另外添加有機碳源,有低耗可持續(xù)的特點。但是厭氧氨氧化菌生長緩慢,生存環(huán)境要求嚴苛,造成了厭氧氨氧化反應器啟動時間過長。本研究從添加填料、微生物包埋固定微生物的角度出發(fā),旨在解決厭氧氨氧化反應器啟動過緩、有效微生物易流失的難題,主要研究結果如下：(1)以海綿、海綿+火山巖、海綿+機制炭為填料,接種混合污泥(好氧活性污泥：缺氧池污泥：普通厭氧污泥=1：2：1),對比分析三種填料對厭氧填料反應塔啟動厭氧氨氧化反應和脫氮性能的影響,結果顯示：三個反應器都成功啟動厭氧氨氧化反應,T2(海綿+火山巖+混合污泥)反應器耗時120天成功啟動厭氧氨氧化過程,用時最短,穩(wěn)定期NH4+-N、NO2--N平均去除率達95%,TN平均去除率達90%；T3(海綿+機制炭+混合污泥)反應器內N03--N量生成最少,添加機制炭可以提高厭氧氨氧化反應對N03--N的去除能力。(2)以T2反應器運行120天的厭氧氨氧化混合污泥為種泥,使用聚乙烯醇和海藻酸鈉(PVA-SA)制取包埋小球,經過53天培養(yǎng)出具有厭氧氨氧化活性小球,成功啟動厭氧氨氧化反應器,NH4+-N、NO2--N去除率在90%以上,TN去除率穩(wěn)定在81%以上,TN去除容積負荷達0.47 kg/(m3·d),比未包埋固定厭氧氨氧化混合污泥的TN去除容積負荷0.34 kg/(m3·d)大,厭氧氨氧化功能得到加強,減少了微生物流失。(3)厭氧氨氧化反應啟動過程中,出水pH高于進水pH,活性穩(wěn)定期,NH4+-N消耗量/N02-N消耗量/N03--N生成量低于理論值1：1.32：0.26,說明在反應器內存在厭氧氨氧化反應和反硝化反應發(fā)生耦合作用;DO值為0.20-0.48mg/L時,包埋小球反應器單個反應周期ORP值的范圍是65-125mv,和理論值相符合。
[Abstract]:Anaerobic ammonia oxidation (anammox) is a new biological denitrification technology. It does not require engineering aeration and the addition of organic carbon sources, which has the characteristics of low consumption and sustainable. However, the anaerobic ammonia-oxidizing bacteria grow slowly and the living environment is strict, which results in the long start-up time of the anaerobic ammonia oxidation reactor. This study aims at solving the problem of slow start-up of anaerobic ammonia oxidation reactor and easy loss of effective microorganisms from the point of view of adding fillers and embedding and immobilization of microorganisms. The main results are as follows: (1) Sponge, sponge volcanic rock, Sponge activated carbon was used as filler and mixed sludge (aerobic activated sludge: anoxic pool sludge: common anaerobic sludge 1: 2: 1) was inoculated. The effects of three kinds of fillers on anaerobic ammonia oxidation and denitrification in anaerobic packed reactor were compared and analyzed. The results showed that it took 120 days for all three reactors to start the anaerobic ammonia oxidation reactor T2 (sponge volcanic rock mixed sludge) reactor successfully, and the time was the shortest. The average removal rate of NH4-Nu no _ 2--N reached 95% and the average removal rate of TN reached 90% in T3 (sponge carbon mixed sludge) reactor, which produced the least amount of N03-N in the reactor. The removal capacity of N03 N in anaerobic ammonia oxidation reaction can be improved by adding mechanism carbon. (2) using anaerobic ammonia oxidation mixed sludge from T2 reactor for 120 days as sludge, polyvinyl alcohol and sodium alginate (PVA-SA) were used to prepare encapsulated pellets. After 53 days of culture, the anaerobic ammoxidation active pellets were obtained. The removal rate of NH _ 4-N no _ 2-N in anaerobic ammonia oxidation reactor was more than 90% and the removal rate of TN was stable at over 81%. The volumetric load of TN removal was 0.47 kg/(m3 / dL, which was larger than that of unimbedded anaerobic ammonia oxidation mixed sludge (TN removal capacity was 0.34 kg/(m3 d). The function of anaerobic ammoxidation was strengthened to reduce the loss of microorganism. The effluent pH is higher than the influent pH, the NH _ 4-N consumption / N _ 02-N consumption / N _ (03) -N production is lower than the theoretical value of 1: 1.32: 0.26, which indicates that there is a coupling effect between anaerobic ammonia oxidation reaction and denitrification reaction in the reactor when the do value is 0.20-0.48mg/L. The range of ORP value for a single reaction period of the encapsulated pellet reactor is 65-125 MV, which is in agreement with the theoretical value.
【學位授予單位】：云南大學
【學位級別】：碩士
【學位授予年份】：2016
【分類號】：X703

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