本文選題：鹽度 + 厭氧氨氧化�。� 參考：《青島大學(xué)》2017年碩士論文

【摘要】：針對(duì)部分含鹽廢水生物脫氮效能較低的問(wèn)題,利用已經(jīng)海水馴化后的淡水厭氧氨氧化反應(yīng)器,通過(guò)向反應(yīng)器中分別添加了不同濃度的K+、甜菜堿和海藻糖,研究了它們濃度變化對(duì)厭氧氨氧化污泥脫氮效能的影響,試驗(yàn)結(jié)果如下所示:適量的添加K+可有效的提升反應(yīng)脫氮效能,K+對(duì)厭氧氨氧化污泥的脫氮效能影響主要分為4個(gè)階段:適應(yīng)階段,K~+濃度為(0~2 mmol//L),厭氧氨氧化適應(yīng)K+的存在,NH_4~+-N,NO_2~--N去除率有所上升,但K+還未對(duì)脫氮效能產(chǎn)生明顯效果;活性提升階段(2~8 mmol/L),K+對(duì)厭氧氨氧化生物系統(tǒng)有促進(jìn)作用,氮去除率顯著提升;活性穩(wěn)定階段(8~20 mmol/L),脫氮效能處于穩(wěn)定狀態(tài),氮去除率雖有下降,但還是高于未添加K+時(shí);抑制階段(大于20 mmol/L),此時(shí)厭氧氨氧化菌活性降低,K+對(duì)厭氧氨氧化產(chǎn)生完全抑制。在整個(gè)周期內(nèi)K+濃度8mmol/L時(shí)達(dá)到最佳去除效果,NH_4~+-N與NO_2~--N的平均去除率為89.24%和84.87%,NRR為1.113 kg N/(m~3·d)。在投加甜菜堿對(duì)厭氧氨氧化脫氮效能的影響試驗(yàn)中發(fā)現(xiàn):(1)投加甜菜堿對(duì)系統(tǒng)脫氮效能有明顯的改善作用,甜菜堿濃度為0.1~0.4 mmol/L時(shí),添加甜菜堿緩解了鹽脅迫對(duì)厭氧氨氧化菌生長(zhǎng)的抑制,也促進(jìn)了反硝化菌的生長(zhǎng);甜菜堿濃度為0.4~0.5 mmol/L時(shí),此時(shí)反硝化菌的生長(zhǎng)占有優(yōu)勢(shì),但對(duì)反應(yīng)表現(xiàn)為促進(jìn)作用。甜菜堿濃度大于0.5 mmol/L后,添加甜菜堿已無(wú)法緩解鹽脅迫對(duì)反應(yīng)器脫氮效能的抑制,最終在甜菜堿濃度0.8 mmol/L時(shí)對(duì)反應(yīng)器產(chǎn)生完全抑制。(2)甜菜堿的添加濃度為0.3 mmol/L濃度時(shí),反應(yīng)去除效能達(dá)到最佳,NH_4~+-N和NO_2~--N分別提升了16%和32%,NRR提升了26.8%。(3)在最后的恢復(fù)試驗(yàn)中,經(jīng)過(guò)25周期的運(yùn)行,在甜菜堿濃度降至0.2mmol/L時(shí)反應(yīng)器脫氮效能得到恢復(fù),這說(shuō)明隨著甜菜堿濃度的降低反應(yīng)器脫氮效能得到快速恢復(fù),甜菜堿對(duì)反應(yīng)器的影響是可逆的。在外源投加海藻糖試驗(yàn)中發(fā)現(xiàn):(1)在穩(wěn)定運(yùn)行的厭氧氨氧化處理高鹽廢水系統(tǒng)中,投加海藻糖對(duì)厭氧氨氧化系統(tǒng)脫氮效能有明顯的改善作用,不同濃度的海藻糖對(duì)厭氧氨氧化的脫氮效能有不同影響。海藻糖濃度在0~0.35 mmol/L范圍內(nèi),添加海藻糖緩解了鹽脅迫對(duì)厭氧氨氧化菌生長(zhǎng)的抑制;海藻糖濃度為0.4~1mmol/L時(shí),此時(shí)海藻糖濃度對(duì)厭氧氨氧化菌產(chǎn)生抑制但還是促進(jìn)反硝化菌的生。海藻糖濃度大于1 mmol/L后,添加海藻糖已對(duì)反應(yīng)器脫氮效能產(chǎn)生不利影響,最終在海藻糖濃度為1.6 mmol/L時(shí)反應(yīng)器產(chǎn)生抑制作用。(2)在0.35 mmol/L濃度下,NH_4~+-N和NO_2~--N平均去除率分別為92.35%和97.36%,NRR為1.29 kg N/(m~3.d),此時(shí)厭氧氨氧化的脫氮效能達(dá)到最佳效果,與0 mmol/L時(shí)相比,NH_4~+-N和NO_2~--N去除率分別提升了53.8%和55.7%。
[Abstract]:In order to solve the problem of low biological nitrogen removal efficiency of some salt-containing wastewater, a fresh water anaerobic ammonia oxidation reactor, which has been domesticated by seawater, was used to add different concentrations of K, betaine and trehalose to the reactor, respectively, by adding different concentrations of K, betaine and trehalose to the reactor. The effect of their concentration on denitrification efficiency of anaerobic ammoxidation sludge was studied. The experimental results are as follows: proper addition of K can effectively enhance the efficiency of reactive denitrification. The effect of K on the denitrification efficiency of anaerobic ammonia oxidation sludge can be divided into four stages: the concentration of K ~ in the adaptation stage is 0 ~ 2 mmol / L ~ (-1), and the anaerobic ammonia oxidation adapts to K The removal rate of NH _ 4 ~ -N _ (no _ 2-N) increased, However, K has no obvious effect on denitrification efficiency; in the stage of activity enhancement, it can promote the anaerobic ammonia oxidation biological system, and the removal rate of nitrogen is significantly increased, while in the stage of activity stabilization, the nitrogen removal efficiency is in a stable state, but the removal rate of nitrogen is decreased. But it was still higher than that without K addition, and at the inhibition stage (> 20 mmol / L ~ (-1), the activity of anaerobic ammonia-oxidizing bacteria decreased and K completely inhibited the anaerobic ammonia oxidation. The average removal rate of NH _ 4 ~ -N and no _ 2 ~ -N was 89.24% and 84.87% respectively when K concentration was 8 mmol / L during the whole cycle. The average removal rate of NH _ 4- N and no _ 2 ~ -N was 1.113 kg N / m ~ (-1) 3 d ~ (-1) 路L ~ (-1) 路L ~ (-1) 路L ~ (-1) 路L ~ (-1). The effect of betaine on anaerobic ammoxidation denitrification efficiency was tested. It was found that betaine could improve the nitrogen removal efficiency of the system obviously. When the concentration of betaine was 0.1 ~ 0.4 mmol / L, the nitrogen removal efficiency of the system was obviously improved by adding betaine. The addition of betaine alleviated the inhibition of the growth of anaerobic ammonia-oxidizing bacteria under salt stress and promoted the growth of denitrifying bacteria. When the concentration of betaine was 0.4 ~ 0.5 mmol / L, the growth of denitrifying bacteria was dominant, but the growth of denitrifying bacteria was promoted. When the concentration of betaine was greater than 0.5 mmol / L, the inhibition of nitrogen removal efficiency could not be alleviated by adding betaine to the reactor. Finally, when the concentration of betaine was 0.8 mmol / L, the reactor was completely inhibited, and the concentration of betaine was 0.3 mmol / L. In the final recovery experiment, the nitrogen removal efficiency of the reactor was restored when the concentration of betaine decreased to 0.2 mmol / L, and the nitrogen removal efficiency increased by 16% and 26.88% respectively. The results showed that the nitrogen removal efficiency of the reactor recovered rapidly with the decrease of betaine concentration, and the effect of betaine on the reactor was reversible. In the experiment of adding trehalose to external source, it is found that the addition of trehalose can improve the nitrogen removal efficiency of anaerobic ammonia oxidation system in the stable operation of anaerobic ammonia oxidation treatment of high-salt wastewater system. Different concentrations of trehalose have different effects on the denitrification efficiency of anaerobic ammonia oxidation. Trehalose concentration in the range of 0 ~ 0.35 mmol / L alleviated the inhibition of the growth of anaerobic ammonia-oxidizing bacteria under salt stress, and when trehalose concentration was 0.4 ~ 1 mmol / L, trehalose concentration inhibited the growth of anaerobic ammonia-oxidizing bacteria but promoted the growth of denitrifying bacteria. When trehalose concentration is more than 1 mmol / L, adding trehalose has a negative effect on nitrogen removal efficiency of reactor. Finally, when trehalose concentration was 1.6 mmol / L, the reactor had inhibitory effect. (2) at 0.35 mmol / L concentration, the average removal rates of NH _ 4- N and no _ 2 ~ -N were 92.35% and 97.36% respectively, and the denitrification efficiency of anaerobic ammonia oxidation was the best. Compared with 0 mmol / L, the removal rates of NH _ 4-N and no _ 2-N increased by 53.8% and 55.7%, respectively.
【學(xué)位授予單位】：青島大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：X703

【參考文獻(xiàn)】

相關(guān)期刊論文 前10條

1 楊少龍;呂珊珊;劉波;崔云前;;海藻糖的作用及生產(chǎn)方法研究進(jìn)展[J];食品工業(yè);2016年10期

2 閆道良;鄭炳松;;海藻糖浸種對(duì)鹽脅迫下?lián)P麥19生理特性的影響[J];浙江農(nóng)業(yè)學(xué)報(bào);2016年08期

3 齊泮晴;于德爽;李津;魏思佳;管勇杰;;鹽度對(duì)厭氧氨氧化工藝處理含海水污水脫氮特性的影響[J];中國(guó)環(huán)境科學(xué);2016年05期

4 王羽;云雪艷;張曉燕;王立立;梁曉紅;呼和;董同力嘎;;海藻糖對(duì)蛋白質(zhì)的抗逆保護(hù)及其在食品領(lǐng)域中的應(yīng)用[J];食品科技;2015年10期

5 段元東;呂偉;李玉龍;李潔冰;李登新;;無(wú)機(jī)鹽離子對(duì)負(fù)載型催化劑Co_3O_4/GO降解PVA廢水的影響[J];環(huán)境工程學(xué)報(bào);2015年10期

6 李智行;張蕾;陳曉波;李航;李旦;;高效耐海水型厭氧氨氧化污泥的馴化[J];中國(guó)環(huán)境科學(xué);2015年03期

7 李祥;黃勇;巫川;王孟可;袁怡;;Fe~(2+)和Fe~(3+)對(duì)厭氧氨氧化污泥活性的影響[J];環(huán)境科學(xué);2014年11期

8 徐婷;周傳余;周超;趙索;武琳琳;譚可菲;;海藻糖對(duì)鹽脅迫下薄皮甜瓜幼苗抗氧化系統(tǒng)的影響[J];北方園藝;2014年19期

9 楊紅薇;陳佼;張建強(qiáng);;K~+、Ca~(2+)、Mg~(2+)對(duì)高鹽肝素廢水處理的影響[J];環(huán)境工程學(xué)報(bào);2014年10期

10 王偉偉;唐鴻志;許平;;嗜鹽菌耐鹽機(jī)制相關(guān)基因的研究進(jìn)展[J];微生物學(xué)通報(bào);2015年03期

相關(guān)博士學(xué)位論文 前3條

1 陸慧鋒;耐鹽厭氧氨氧化工藝性能及其機(jī)理研究[D];浙江大學(xué);2015年

2 唐崇儉;厭氧氨氧化工藝特性與控制技術(shù)的研究[D];浙江大學(xué);2011年

3 李玲玲;高鹽度廢水生物處理特性研究[D];中國(guó)海洋大學(xué);2006年

相關(guān)碩士學(xué)位論文 前7條

1 吳紅珍;色鹽桿菌DSM 22428~T新種鑒定及其甜菜堿醛脫氫酶研究[D];山東師范大學(xué);2015年

2 徐菁;金霉素對(duì)全程自養(yǎng)脫氮微生物的抑制及機(jī)理研究[D];北京交通大學(xué);2014年

3 鮑振國(guó);厭氧—部分亞硝化—厭氧氨氧化處理榨菜廢水的脫氮性能試驗(yàn)研究[D];重慶大學(xué);2013年

4 馬春;厭氧氨氧化工藝處理低溫和高鹽度廢水的可行性研究[D];杭州師范大學(xué);2012年

5 吳綺桃;超高鹽榨菜腌制廢水處理技術(shù)試驗(yàn)研究[D];重慶大學(xué);2007年

6 曾朝銀;高鹽高氮高有機(jī)濃度榨菜廢水脫氮除磷技術(shù)試驗(yàn)研究[D];重慶大學(xué);2005年

7 何健;高鹽難降解工業(yè)廢水微生物處理的污泥馴化研究與應(yīng)用[D];南京農(nóng)業(yè)大學(xué);2000年

，

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