东南大学学报(自然科学版)
東南大學學報(自然科學版)
동남대학학보(자연과학판)
JOURNAL OF SOUTHEAST UNIVERSITY
2014年
5期
999-1004
,共6页
苗蕾%王凯%王淑莹%李忠明%朱如龙%彭永臻
苗蕾%王凱%王淑瑩%李忠明%硃如龍%彭永臻
묘뢰%왕개%왕숙형%리충명%주여룡%팽영진
垃圾渗滤液%SBR%厌氧氨氧化菌%有机物%PCR
垃圾滲濾液%SBR%厭氧氨氧化菌%有機物%PCR
랄급삼려액%SBR%염양안양화균%유궤물%PCR
landfill leachate%SBR(sequencing bath reactor)%Anammox%organics%PCR(polymer-ase chain reaction)
为了考察垃圾渗滤液中有机物对其厌氧氨氧化反应的影响,保证晚期垃圾渗滤液的深度脱氮,采用短程硝化SBR联合厌氧氨氧化SBR(ASBR)两级系统处理氨氮为(2000±100)mg/L、COD为(2200±200)mg/L的实际晚期垃圾渗滤液进行试验研究.短程硝化SBR运行了100 d,亚硝酸盐积累率达到了95%以上.ASBR采用进水逐步加大渗滤液掺入比例的方式进行驯化.实验结果表明,随着掺入比例的增大,进水可降解COD增加到150 mg/L左右时,ASBR的氮负荷速率从1.20 kg/(m3·d)降到了0.28 kg/(m3·d),氮去除速率从1.10 kg/(m3·d)下降到了0.19 kg/(m3·d),表明系统趋于崩溃.当ASBR进水可降解COD再次降低到50 mg/L左右时,系统的厌氧氨氧化菌活性得到了恢复,最大的氮负荷速率和氮去除速率分别达到了1.55和1.20 kg/(m3·d).定量PCR试验表明,当系统的厌氧氨氧化菌活性得到恢复后,厌氧氨氧化菌占全细菌的比例达到了试验期间的最大值1.94%.
為瞭攷察垃圾滲濾液中有機物對其厭氧氨氧化反應的影響,保證晚期垃圾滲濾液的深度脫氮,採用短程硝化SBR聯閤厭氧氨氧化SBR(ASBR)兩級繫統處理氨氮為(2000±100)mg/L、COD為(2200±200)mg/L的實際晚期垃圾滲濾液進行試驗研究.短程硝化SBR運行瞭100 d,亞硝痠鹽積纍率達到瞭95%以上.ASBR採用進水逐步加大滲濾液摻入比例的方式進行馴化.實驗結果錶明,隨著摻入比例的增大,進水可降解COD增加到150 mg/L左右時,ASBR的氮負荷速率從1.20 kg/(m3·d)降到瞭0.28 kg/(m3·d),氮去除速率從1.10 kg/(m3·d)下降到瞭0.19 kg/(m3·d),錶明繫統趨于崩潰.噹ASBR進水可降解COD再次降低到50 mg/L左右時,繫統的厭氧氨氧化菌活性得到瞭恢複,最大的氮負荷速率和氮去除速率分彆達到瞭1.55和1.20 kg/(m3·d).定量PCR試驗錶明,噹繫統的厭氧氨氧化菌活性得到恢複後,厭氧氨氧化菌佔全細菌的比例達到瞭試驗期間的最大值1.94%.
위료고찰랄급삼려액중유궤물대기염양안양화반응적영향,보증만기랄급삼려액적심도탈담,채용단정초화SBR연합염양안양화SBR(ASBR)량급계통처리안담위(2000±100)mg/L、COD위(2200±200)mg/L적실제만기랄급삼려액진행시험연구.단정초화SBR운행료100 d,아초산염적루솔체도료95%이상.ASBR채용진수축보가대삼려액참입비례적방식진행순화.실험결과표명,수착참입비례적증대,진수가강해COD증가도150 mg/L좌우시,ASBR적담부하속솔종1.20 kg/(m3·d)강도료0.28 kg/(m3·d),담거제속솔종1.10 kg/(m3·d)하강도료0.19 kg/(m3·d),표명계통추우붕궤.당ASBR진수가강해COD재차강저도50 mg/L좌우시,계통적염양안양화균활성득도료회복,최대적담부하속솔화담거제속솔분별체도료1.55화1.20 kg/(m3·d).정량PCR시험표명,당계통적염양안양화균활성득도회복후,염양안양화균점전세균적비례체도료시험기간적최대치1.94%.
In order to investigate the effect of organics in the mature landfill leachate on the Anam-mox process treating mature landfill leachate,a combined process consisting of nitritation sequencing batch reactor (SBR)and anaerobic ammonium oxidation sequencing batch reactor (ASBR)was de-veloped.The real mature landfill leachate with ammonia of (2000 ±100)mg/L and COD of (2200 ±200)mg/L was used in this study.After 100 days,the ratio of NO2 -/NOx -reached 95% or more in SBRni .ASBR was acclimated under the filling mode of increasing the mature landfill leachate gradually to supply the ammonia.The results show that the biodegradable COD is increased with the ratio of mature landfill leachate in the filling of ASBR.When the biodegradable COD in the filling increases to 150 mg/L,nitrogen loading rate (NLR)of ASBR decreases from 1 .20 kg/(m3 ·d)to 0.28 kg/(m3 ·d),and nitrogen removal rate (NRR)decreases from 1 .10 kg/(m3 ·d)to 0.19 kg/(m3 ·d).This indicates that the system tends to collapse.When the biodegradable COD decreases to 50 mg/L,the maximum NLR and NRR increases to 1 .55 kg/(m3 ·d)and 1 .20 kg/(m3 ·d),respectively,which indicates that the activity of Anammox is recovered.Besides,the quantitative PCR(polymerase chain reaction)shows that the proportion of Anammox in the bacteria increases to 1 .94% when activity of Anammox becteria is recovered.