Anaerobic Baffled Reactor in Treatment of Natural Rubber Processing Wastewater: Reactor Performance and Analysis of Microbial Community
Anaerobic Baffled Reactor in Treatment of Natural Rubber Processing Wastewater: Reactor Performance and Analysis of Microbial Community
复制标题
厌氧折流板反应器处理天然橡胶加工废水：反应器性能及微生物群落分析
DOI：
10.2965/jwet.17-038
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发表时间：
2017
影响因子：
--
通讯作者：
Takashi Yamaguchi
中科院分区：
文献类型：
--
作者：
P. T. Tran;T. Watari;Y. Hirakata;T. Nguyen;M. Hatamoto;D. Tanikawa;K. Syutsubo;M. Nguyen;M. Fukuda;L. Nguyen;Takashi Yamaguchi
天然橡胶混凝过程排放的废水中含有高浓度的有机化合物，主要是甲酸或乙酸，以及残留的橡胶颗粒。这些化合物在没有pH调节和固体去除的情况下，在高速率厌氧消化过程中会造成严重的问题。本研究采用厌氧折流板反应器（ABR，工作容积为68 L， 10个室）处理该类废水，HRT为3.5±0.9 d。在224 d的时间内，通过逐步增加COD来评价ABR的性能。对第143天ABR各室污泥中的微生物群落进行了分析。在OLR为1.4±0.3 kg-COD/（m3·d）时，COD和总悬浮固体去除率最高，分别为92.3±6.3%和90.0±5.6%。使用MiSeq对16S rRNA基因进行测序，揭示了每个隔室中不同的乙酰群落。大部分产甲烷菌，尤其是利用醋酸盐的产甲烷菌，主要分布在第3、4、5隔间，挥发性脂肪酸浓度明显降低，产气量最高。这些结果表明，ABR是处理该废水的潜在替代方案。
Wastewater discharged from the coagulation process of natural rubber contains high concentrations of organic compounds, mainly formic or acetic acid, and residual rubber particles. These compounds pose serious issues during the high-rate anaerobic digestion without pH adjustment and solid removal in advance. In this study, an anaerobic baffled reactor (ABR, working volume of 68 L, ten compartments) was investigated for the treatment of such wastewater with a HRT of 3.5 ± 0.9 days. The performance of the ABR was evaluated with the stepwise increase in COD influent during a period 224 days. The microbial community in the sludge from each compartment of the ABR on the 143rd day was analyzed. Under an OLR of 1.4 ± 0.3 kg-COD/(m3·day), the highest COD and total suspended solid removal efficiency of 92.3 ± 6.3% and 90.0 ± 5.6%, respectively, were observed. Sequencing of 16S rRNA genes using MiSeq revealed the difference acetogen communities in each compartment. Most of the methanogens, particularly acetate-utilizing methanogens, were predominantly distributed in the 3rd, 4th, and 5th compartments, where volatile fatty acid concentration considerably decreased and the highest biogas production was observed. These results indicated that the ABR is a potential alternative for the treatment of this wastewater.
DOI：
10.1038/ismej.2012.8
发表时间：
2012-08
期刊：
The ISME journal
影响因子：
--
作者：
通讯作者：
--
影响因子：
2.2
作者：
Narihiro, Takashi;Terada, Takeshi;Sekiguchi, Yuji
通讯作者：
Sekiguchi, Yuji
影响因子：
12.8
作者：
Ariesyady, Herto Dwi;Ito, Tsukasa;Okabe, Satoshi
通讯作者：
Okabe, Satoshi