Abstract:
:The effects of bore diameter and particle size of polyurethane (PU) foam on soil wastewater infiltration system as well as its anti-clogging mechanism were investigated in this study. Different types of PU were used to determine the effect of bore diameter and particle size on the chemical oxygen demand (COD) removal. The results revealed that bore diameter showed little effects and the optimal size of PU should be not less than 10 mm. The formation of strong hydrophilic group on the outer layer of hydrophobic PU foam was fixed with active ingredient Al2O3, leading to good anti-clogging effect. Denaturing gradient gel electrophoresis fingerprint profiles and cluster analysis showed that the microbial community in the bottom was different from that in other places of the normal column, while it in the top has obvious differences from that in other places of the clogging column. Furthermore, the dominant microbial species of the normal column was Betaproteobacteria while Alphaproteobacteria in the clogging column.
journal_name
Environ Technoljournal_title
Environmental technologyauthors
Yuan H,Nie J,Gu L,Zhu Ndoi
10.1080/09593330.2016.1175514subject
Has Abstractpub_date
2016-12-01 00:00:00pages
3071-7issue
23eissn
0959-3330issn
1479-487Xjournal_volume
37pub_type
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