Using pig manure to promote fermentation of sugarcane molasses alcohol wastewater and its effects on microbial community structure.
Molasses alcohol wastewater (MAW) is difficult to be bio-treated and converted into biogas. In this study, MAW mixed with pig manure (PM) in different ratios was co-digested. Biogas production, chemical oxygen demand (COD) removal and the structure of microbial communities were monitored in the process. Our results showed that under the optimal COD ratio of PM:MAW (1.0:1.5), CODremoval and biogas yield were the highest. And in fermentation tanks with different PM to MAW ratios, the structure and composition of bacterial communities varied in the early and late stage. Furthermore, the type of main bacterial operational taxonomic units (OTUs) have no differences, yet the relative abundance of OTUs varied. The current research showed that there was a good potential to the use of PM as a co-digested material to anaerobic treatment of MAW and provided references for further improving bio-treatment of MAW.
College of Life Science and Technology of Guangxi University, Nanning 530005, Guangxi, China; State Key Laboratory for Conservation and Utilization of Agricultural Bioresources in the Subtropics, Nanning 530005, Guangxi, China.
Peihong
P
Shen
College of Life Science and Technology of Guangxi University, Nanning 530005, Guangxi, China.
Fei
F
Han
Guangxi Academy of Agricultural Sciences, Nanning 530012, Guangxi, China.
Shuquan
S
Su
College of Life Science and Technology of Guangxi University, Nanning 530005, Guangxi, China.
Junya
J
Zhang
Guangxi Guitang (Group) Co., Ltd, Guitang 530072, Guangxi, China.
Zhineng
Z
Chen
College of Life Science and Technology of Guangxi University, Nanning 530005, Guangxi, China.
Junfang
J
Li
Guangxi Guitang (Group) Co., Ltd, Guitang 530072, Guangxi, China.
Jiayi
J
Gan
Guangxi Guitang (Group) Co., Ltd, Guitang 530072, Guangxi, China.
Bin
B
Feng
College of Chemistry and Ecological Engineering, Guangxi University for Nationalities, Nanning 530007, Guangxi, China. Electronic address: wubogxu@gmail.com.
Bo
B
Wu
D000438:Alcohols / Q000032:analysis*; D000693:Anaerobiosis; D000818:Animals; D001483:Base Sequence; D056804:Biofuels; D057919:Biological Oxygen Demand Analysis; D019295:Computational Biology; D017931:DNA Primers / Q000235:genetics; D005285:Fermentation; D008372:Manure / Q000032:analysis* / Q000382:microbiology; D064307:Microbiota / Q000235:genetics*; D008965:Molasses / Q000032:analysis*; D008969:Molecular Sequence Data; D016133:Polymerase Chain Reaction; D025341:Principal Component Analysis; D012337:RNA, Ribosomal, 18S / Q000235:genetics; D031786:Saccharum / Q000737:chemistry*; D017422:Sequence Analysis, DNA; D013552:Swine; D062065:Wastewater / Q000737:chemistry*
D000438:Alcohols; D056804:Biofuels; D017931:DNA Primers; D008372:Manure; D012337:RNA, Ribosomal, 18S; D062065:Wastewater
Bacterial community; Biogas; Co-digestion; Molasses alcohol wastewater; Pig manure