發(fā)布時(shí)間：2019-04-17 07:07

【摘要】：針對(duì)有機(jī)廢水中硫酸鹽及氨態(tài)氮的同步脫除現(xiàn)象,采用了ASBR及UASB兩種試驗(yàn)裝置進(jìn)行機(jī)理分析,并使用分子生物學(xué)技術(shù)對(duì)微生物種群結(jié)構(gòu)進(jìn)行探究.結(jié)果表明,從啟動(dòng)ASBR反應(yīng)器歷時(shí)100d左右、UASB反應(yīng)器歷時(shí)約80d均成功實(shí)現(xiàn)了硫酸鹽和氨態(tài)氮的厭氧同步脫除.進(jìn)水COD為2 000mg/L、氨氮及SO_4~(2-)-S濃度分別為20mg/L及50 mg/L,ASBR對(duì)氨氮及SO_4~(2-)-S的去除效率均在70%以上;UASB對(duì)兩者的去除效率分別達(dá)90%和50%以上;反應(yīng)所需最適pH為4.52~5.96.污泥中的細(xì)菌多為硫酸鹽還原功能的短桿菌和弧菌,未發(fā)現(xiàn)明確指向的硫酸鹽型厭氧氨氧化菌.通過(guò)化學(xué)計(jì)量分析,表明去除的部分SO_4~(2-)通過(guò)異養(yǎng)硫酸鹽還原轉(zhuǎn)化為S~(2-),另一部分硫酸鹽和氨態(tài)氮(SO_4~(2-)-S與NH_4~+-N之比接近1∶2)通過(guò)硫酸鹽厭氧氨氧化轉(zhuǎn)化為硫單質(zhì)和氮?dú)?單質(zhì)硫存在于污泥中.在ASBR反應(yīng)器中硫酸鹽型厭氧氨氧化和硫酸鹽還原反應(yīng)對(duì)硫酸鹽的轉(zhuǎn)化比例約為0.9∶1,而UASB反應(yīng)器中的比例則約為1.6∶1.說(shuō)明反應(yīng)器中硫酸鹽還原反應(yīng)和硫酸鹽型厭氧氨氧化反應(yīng)之間似乎并不關(guān)聯(lián).本研究為實(shí)現(xiàn)生活污水直接厭氧氨氧化奠定了基礎(chǔ).
[Abstract]:The mechanism of simultaneous removal of sulfate and ammonia nitrogen from organic wastewater was analyzed by ASBR and UASB, and the structure of microbial population was studied by using molecular biology technology. The results showed that the anaerobic simultaneous removal of sulfate and ammonia nitrogen was successfully achieved from the start-up of the ASBR reactor for about 100 days and the UASB reactor for about 80 days. The influent COD is 2 000 mg / L, the ammonia nitrogen and SO_4~ _ (2 -)-S concentration are 20mg/L and 50 mg/L,ASBR respectively. The removal efficiency of ammonia nitrogen and SO_4~ _ (2 -)-S is over 70%. The removal efficiency of UASB was more than 90% and 50%, respectively, and the optimum pH for the reaction was 4.52 and 5.96, respectively. Most of the bacteria in sludge were short bacteria and vibrio with sulfate reduction function, and no sulfate anaerobic ammonia oxidation bacteria were found. The results of stoichiometric analysis showed that the removed part of SO_4~ _ (2 -) was reduced to S2 ~ (2 -) by heterotrophic sulfate reduction. Another part of sulfate and ammonia nitrogen (the ratio of SO_4~ _ (2 -)-S to NH_4~-N is close to 1:2) is converted to sulfur and nitrogen by anaerobic ammonia oxidation of sulfate and sulfur exists in sludge. The conversion ratio of sulfate to sulfate by sulfate anaerobic ammonia oxidation and sulfate reduction reaction in ASBR reactor is about 0.9%, while that in UASB reactor is about 1.6%. It is concluded that there is no correlation between sulfate reduction reaction and sulfate anaerobic ammonia oxidation reaction in the reactor. This study lays a foundation for the realization of direct anaerobic ammonia oxidation of domestic sewage.
【作者單位】： 陜西省環(huán)境重點(diǎn)實(shí)驗(yàn)室;西北水資源與環(huán)境生態(tài)教育部重點(diǎn)實(shí)驗(yàn)室;西安建筑科技大學(xué)環(huán)境與市政工程學(xué)院;
【基金】：國(guó)家水體污染控制與治理科技重大專項(xiàng)(2009ZX07212-002)
【分類號(hào)】：X703

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 任宏洋;張代鈞;叢麗影;蔡慶;;一種未見報(bào)道的厭氧氨氧化菌分子生物學(xué)鑒定[J];環(huán)境工程學(xué)報(bào);2008年03期

2 李祥;袁怡;黃勇;王勇;;厭氧氨氧化微生物研究進(jìn)展[J];環(huán)境科技;2009年02期

3 鄭平;張蕾;;厭氧氨氧化菌的特性與分類[J];浙江大學(xué)學(xué)報(bào)(農(nóng)業(yè)與生命科學(xué)版);2009年05期

4 唐崇儉;鄭平;;厭氧氨氧化技術(shù)應(yīng)用的挑戰(zhàn)與對(duì)策[J];中國(guó)給水排水;2010年04期

5 孫文汗;楊繼剛;;厭氧氨氧化的啟動(dòng)與影響因素[J];遼寧化工;2013年06期

6 王靜;郝建安;張愛(ài)君;楊波;姜天翔;張雨山;;厭氧氨氧化反應(yīng)研究進(jìn)展[J];水處理技術(shù);2014年03期

7 胡細(xì)全,劉大銀,蔡鶴生;厭氧氨氧化的微生物研究進(jìn)展[J];上海環(huán)境科學(xué);2003年S2期

8 王燕舞,劉康懷;厭氧氨氧化工藝及其應(yīng)用前景[J];礦產(chǎn)與地質(zhì);2004年01期

9 張少輝,王天玖,鄭平;厭氧氨氧化研究進(jìn)展[J];中國(guó)沼氣;2004年02期

10 胡細(xì)全,劉大銀,蔡鶴生;厭氧氨氧化的研究及其應(yīng)用[J];環(huán)境污染治理技術(shù)與設(shè)備;2004年03期

相關(guān)會(huì)議論文 前10條

1 路青;張振賢;付秋爽;徐偉濤;黨酉勝;;厭氧氨氧化工藝研究進(jìn)展[A];上海（第二屆）水業(yè)熱點(diǎn)論壇論文集[C];2010年

2 林琳;;含氨廢水生物處理-厭氧氨氧化技術(shù)啟動(dòng)研究進(jìn)展[A];2014中國(guó)環(huán)境科學(xué)學(xué)會(huì)學(xué)術(shù)年會(huì)論文集（第五章）[C];2014年

3 鮑林林;李剛強(qiáng);李冬;;常溫低基質(zhì)濃度下磷酸鹽對(duì)厭氧氨氧化過(guò)程的影響[A];河南省化學(xué)會(huì)2012年學(xué)術(shù)年會(huì)論文摘要集[C];2012年

4 姜昕;馬鳴超;李俊;鐘佐q，

本文編號(hào)：2459219