Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4997452 | Bioresource Technology | 2017 | 35 Pages |
Abstract
A pilot-scale upflow anaerobic sludge blanket (UASB)-downflow hanging sponge system (DHS) combined with an anaerobic baffled reactor (ABR) and a settling tank (ST) was installed in a natural rubber processing factory in South Vietnam and its process performance was evaluated for 267 days. The UASB reactor achieved a total removal efficiency of 55.6 ± 16.6% for chemical oxygen demand (COD) and 77.8 ± 10.3% for biochemical oxygen demand (BOD) with an organic loading rate of 1.7 ± 0.6 kg-COD·mâ3·dayâ1. The final effluent of the proposed system had 140 ± 64 mg·Lâ1 of total COD, 31 ± 12 mg·Lâ1 of total BOD, and 58 ± 24 mg-N·Lâ1 of total nitrogen. The system could significantly reduce 92% of greenhouse gas emissions and 80% of hydraulic retention times compared with current treatment systems.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Process Chemistry and Technology
Authors
Takahiro Watari, Trung Cuong Mai, Daisuke Tanikawa, Yuga Hirakata, Masashi Hatamoto, Kazuaki Syutsubo, Masao Fukuda, Ngoc Bich Nguyen, Takashi Yamaguchi,