浸没式厌氧膜生物反应器处理低浓度污水产甲烷特性
|
摘要
研究浸没式厌氧膜生物反应器(submerged anaerobic membrane bioreactor,SAn MBR)处理低浓度生活污水的产甲烷特性,考察运行期间甲烷产率变化以及有机负荷(OLR)与甲烷产生量的关系。结果表明,SAn MBR在中温[(35±1)℃]、p H为6.8~7.2,HRT为6~15 h条件下,甲烷产率最大为0.067 L·g-1COD。在进水OLR为0.29~2.85 kg COD/m3·d-1条件下,甲烷日产生量和累积甲烷产生量与OLR呈线性相关,拟合方程分别为甲烷日产生量=0.3OLR+0.23(R2=0.89)和累积甲烷产生量=29.8OLR-5.45(R2=0.81)。对反应器甲烷产生量通过支持向量机进行模拟预测表明,反应器甲烷产生量可长期保持稳定,反应器耐冲击负荷能力较强。
The submerged anaerobic membrane bioreactors( submerged anaerobic membrane bioreactor,SAnMBR) was used to treat low-concentration domestic sewage for investigating the methanogenic properties. The change of methane production rate during operation as well as the relationship between organic load( OLR) and methane production was researched. The results show that the maximum of methane production rate is 0. 067 L·g-1 COD with medium temperature [( 35 ± 1) ℃ ],p H 6. 8 ~ 7. 2 and hydraulic retention time of 6 ~ 15 h. The daily methane production and cumulative methane production were linearly correlated with OLR under the condition of influent OLR of 0. 29 ~ 2. 85 kg COD/m3·d-1. The fitting equations are methane daily production = 0. 3 OLR + 0. 23( R2= 0. 89) and cumulative methane production = 29. 8 OLR-5. 45( R2= 0. 81). The methane production in the reactor was simulated and predicted by the support vector machine. It is concluded that the methane production can remain stable for a long time and the reactor has strong impact load resistance.
The submerged anaerobic membrane bioreactors( submerged anaerobic membrane bioreactor,SAnMBR) was used to treat low-concentration domestic sewage for investigating the methanogenic properties. The change of methane production rate during operation as well as the relationship between organic load( OLR) and methane production was researched. The results show that the maximum of methane production rate is 0. 067 L·g-1 COD with medium temperature [( 35 ± 1) ℃ ],p H 6. 8 ~ 7. 2 and hydraulic retention time of 6 ~ 15 h. The daily methane production and cumulative methane production were linearly correlated with OLR under the condition of influent OLR of 0. 29 ~ 2. 85 kg COD/m3·d-1. The fitting equations are methane daily production = 0. 3 OLR + 0. 23( R2= 0. 89) and cumulative methane production = 29. 8 OLR-5. 45( R2= 0. 81). The methane production in the reactor was simulated and predicted by the support vector machine. It is concluded that the methane production can remain stable for a long time and the reactor has strong impact load resistance.
引文
1 Smith A L,Stadler L B,Cao L,et al.Navigating wastewater energy recovery strategies:A life cycle comparison of anaerobic membrane bioreactor and conventional treatment systems with anaerobic digestion[J].Environmental Science&Technology,2014,48(10):5972-5981
2 Mccarty P L,Jaeho B,Jeonghwan K.Domestic wastewater treatment as a net energy producer-can this be achieved?[J].Environmental Science&Technology,2011,45(17):7100-7106
3 Liao Bao Qiang,Kraemer J T,Bagley D M.Anaerobic membrane bioreactors:Applications and research directions[J].Cheminform,2006,36(6):489-530
4 Robles A,Ruano M V,García-Usach F,et al.Sub-critical filtration conditions of commercial hollow-fibre membranes in a submerged anaerobic MBR(HF-SAn MBR)system:the effect of gas sparging intensity[J].Bioresource Technology,2012,114:247-254
5 Drews A.Membrane fouling in membrane bioreactors——characterisation,contradictions,cause and cures[J].Journal of Membrane Science,2010,363(1):1-28
6 Van Zyl P J,Wentzel M C,Ekama G A,et al.Design and start-up of a high rate anaerobic membrane bioreactor for the treatment of a low p H,high strength,dissolved organic waste water[J].Water Science&Technology a Journal of the International Association on Water Pollution Research,2008,57(2):291-295
7 Lin H J,Chen J R,Wang F Y,et al.Feasibility evaluation of submerged anaerobic membrane bioreactor for municipal secondary wastewater treatment.[J].Desalination,2011,280(1):120-126
8 Hu A Y,Stuckey D C.Treatment of dilute wastewaters using a novel submerged anaerobic membrane bioreactor.[J].Journal of Environmental Engineering,2006,132(2):190-198
9 Visvanathan C,Abeynayaka A.Developments and future potentials of anaerobic membrane bioreactors(An MBRs)[J].Membrane Water Treatment,2012,3(1):1-23
10 Basset N,La珓3Pez-Palau S,Dosta J,et al.Comparison of aerobic granulation and anaerobic membrane bioreactor technologies for winery wastewater treatment[J].Water Science&Technology,2014,69(2):320-327
11 Moletta R,Mataalvarez J,Moletta R.Winery and distillery wastewater treatment by anaerobic digestion[J].Water Science&Technology a Journal of the International Association on Water Pollution Research,2005,51(1):137-144
12 Giménez J B,Robles A,Carretero L,et al.Experimental study of the anaerobic urban wastewater treatment in a submerged hollow-fibre membrane bioreactor at pilot scale[J].Bioresource Technology,2011,102(19):8799-8806
13 Chen C,Guo W,Ngo H H,et al.Challenges in biogas production from anaerobic membrane bioreactors[J].Renewable Energy,2016,98:120-134
14 Smith A L,Skerlos S J,Raskin L.Psychrophilic anaerobic membrane bioreactor treatment of domestic wastewater[J].Water Research,2013,47(4):1655-1665
15 Yeo H,Lee H S.The effect of solids retention time on dissolved methane concentration in anaerobic membrane bioreactors[J].Environmental Technology,2013,34(13-14):2105-2112
16 Yue X,Koh Y K,Ng H Y.Effects of dissolved organic matters(DOMs)on membrane fouling in anaerobic ceramic membrane bioreactors(An CMBRs)treating domestic wastewater[J].Water Research,2015,86:96-107
17 Huang Z,Ong S L,Ng H Y.Submerged anaerobic membrane bioreactor for low-strength wastewater treatment:effect of HRT and SRT on treatment performance and membrane fouling[J].Water Research,2011,45(2):705-713
18 Jeong E,Kim H W,Nam J Y,et al.Enhancement of bioenergy production and effluent quality by integrating optimized acidification with submerged anaerobic membrane bioreactor[J].Bioresour Technol,2010,101(1):S7-S12
19 Giménez J B,MartíN,Ferrer J,et al.Methane recovery efficiency in a submerged anaerobic membrane bioreactor(SAn MBR)treating sulphate-rich urban wastewater:Evaluation of methane losses with the effluent.[J].Bioresource Technology,2012,118(8):67-72
20 Yeo H,An J,Reid R,et al.Contribution of liquid/gas mass-transfer limitations to dissolved methane oversaturation in anaerobic treatment of dilute wastewater[J].Environmental Science&Technology,2015,49(17):10366-10372
21 Wijekoon K C,Visvanathan C,Abeynayaka A,et al.Effect of organic loading rate on VFA production,organic matter removal and microbial activity of a two-stage thermophilic anaerobic membrane bioreactor.[J].Bioresource Technology,2011,102(9):5353-5360
22 Abdullah A G L,Idris A,Ahmadun F R,et al.A kinetic study of a membrane anaerobic reactor(MAR)for treatment of sewage sludge[J].Desalination,2015,183(1):439-445
23 Dereli R K,Ersahin M E,Ozgun H,et al.Potentials of anaerobic membrane bioreactors to overcome treatment limitations induced by industrial wastewaters[J].Bioresource Technology,2012,122:160-170
24 Saddoud A,Sayadi S.Application of acidogenic fixed-bed reactor prior to anaerobic membrane bioreactor for sustainable slaughterhouse wastewater treatment.[J].Journal of Hazardous Materials,2007,149(3):700-706
2 Mccarty P L,Jaeho B,Jeonghwan K.Domestic wastewater treatment as a net energy producer-can this be achieved?[J].Environmental Science&Technology,2011,45(17):7100-7106
3 Liao Bao Qiang,Kraemer J T,Bagley D M.Anaerobic membrane bioreactors:Applications and research directions[J].Cheminform,2006,36(6):489-530
4 Robles A,Ruano M V,García-Usach F,et al.Sub-critical filtration conditions of commercial hollow-fibre membranes in a submerged anaerobic MBR(HF-SAn MBR)system:the effect of gas sparging intensity[J].Bioresource Technology,2012,114:247-254
5 Drews A.Membrane fouling in membrane bioreactors——characterisation,contradictions,cause and cures[J].Journal of Membrane Science,2010,363(1):1-28
6 Van Zyl P J,Wentzel M C,Ekama G A,et al.Design and start-up of a high rate anaerobic membrane bioreactor for the treatment of a low p H,high strength,dissolved organic waste water[J].Water Science&Technology a Journal of the International Association on Water Pollution Research,2008,57(2):291-295
7 Lin H J,Chen J R,Wang F Y,et al.Feasibility evaluation of submerged anaerobic membrane bioreactor for municipal secondary wastewater treatment.[J].Desalination,2011,280(1):120-126
8 Hu A Y,Stuckey D C.Treatment of dilute wastewaters using a novel submerged anaerobic membrane bioreactor.[J].Journal of Environmental Engineering,2006,132(2):190-198
9 Visvanathan C,Abeynayaka A.Developments and future potentials of anaerobic membrane bioreactors(An MBRs)[J].Membrane Water Treatment,2012,3(1):1-23
10 Basset N,La珓3Pez-Palau S,Dosta J,et al.Comparison of aerobic granulation and anaerobic membrane bioreactor technologies for winery wastewater treatment[J].Water Science&Technology,2014,69(2):320-327
11 Moletta R,Mataalvarez J,Moletta R.Winery and distillery wastewater treatment by anaerobic digestion[J].Water Science&Technology a Journal of the International Association on Water Pollution Research,2005,51(1):137-144
12 Giménez J B,Robles A,Carretero L,et al.Experimental study of the anaerobic urban wastewater treatment in a submerged hollow-fibre membrane bioreactor at pilot scale[J].Bioresource Technology,2011,102(19):8799-8806
13 Chen C,Guo W,Ngo H H,et al.Challenges in biogas production from anaerobic membrane bioreactors[J].Renewable Energy,2016,98:120-134
14 Smith A L,Skerlos S J,Raskin L.Psychrophilic anaerobic membrane bioreactor treatment of domestic wastewater[J].Water Research,2013,47(4):1655-1665
15 Yeo H,Lee H S.The effect of solids retention time on dissolved methane concentration in anaerobic membrane bioreactors[J].Environmental Technology,2013,34(13-14):2105-2112
16 Yue X,Koh Y K,Ng H Y.Effects of dissolved organic matters(DOMs)on membrane fouling in anaerobic ceramic membrane bioreactors(An CMBRs)treating domestic wastewater[J].Water Research,2015,86:96-107
17 Huang Z,Ong S L,Ng H Y.Submerged anaerobic membrane bioreactor for low-strength wastewater treatment:effect of HRT and SRT on treatment performance and membrane fouling[J].Water Research,2011,45(2):705-713
18 Jeong E,Kim H W,Nam J Y,et al.Enhancement of bioenergy production and effluent quality by integrating optimized acidification with submerged anaerobic membrane bioreactor[J].Bioresour Technol,2010,101(1):S7-S12
19 Giménez J B,MartíN,Ferrer J,et al.Methane recovery efficiency in a submerged anaerobic membrane bioreactor(SAn MBR)treating sulphate-rich urban wastewater:Evaluation of methane losses with the effluent.[J].Bioresource Technology,2012,118(8):67-72
20 Yeo H,An J,Reid R,et al.Contribution of liquid/gas mass-transfer limitations to dissolved methane oversaturation in anaerobic treatment of dilute wastewater[J].Environmental Science&Technology,2015,49(17):10366-10372
21 Wijekoon K C,Visvanathan C,Abeynayaka A,et al.Effect of organic loading rate on VFA production,organic matter removal and microbial activity of a two-stage thermophilic anaerobic membrane bioreactor.[J].Bioresource Technology,2011,102(9):5353-5360
22 Abdullah A G L,Idris A,Ahmadun F R,et al.A kinetic study of a membrane anaerobic reactor(MAR)for treatment of sewage sludge[J].Desalination,2015,183(1):439-445
23 Dereli R K,Ersahin M E,Ozgun H,et al.Potentials of anaerobic membrane bioreactors to overcome treatment limitations induced by industrial wastewaters[J].Bioresource Technology,2012,122:160-170
24 Saddoud A,Sayadi S.Application of acidogenic fixed-bed reactor prior to anaerobic membrane bioreactor for sustainable slaughterhouse wastewater treatment.[J].Journal of Hazardous Materials,2007,149(3):700-706