Performance evaluation of the pilot scale upflow anaerobic sludge blanket - Downflow hanging sponge system for natural rubber processing wastewater treatment in South Vietnam

Takahiro Watari; Trung Cuong Mai; Daisuke Tanikawa; Yuga Hirakata; Masashi Hatamoto; Kazuaki Syutsubo; Masao Fukuda; Ngoc Bich Nguyen; Takashi Yamaguchi

doi:10.1016/j.biortech.2017.02.058

Performance evaluation of the pilot scale upflow anaerobic sludge blanket - Downflow hanging sponge system for natural rubber processing wastewater treatment in South Vietnam

Bioresour Technol. 2017 Aug:237:204-212. doi: 10.1016/j.biortech.2017.02.058. Epub 2017 Mar 7.

Authors

Takahiro Watari¹, Trung Cuong Mai², Daisuke Tanikawa³, Yuga Hirakata⁴, Masashi Hatamoto⁵, Kazuaki Syutsubo⁶, Masao Fukuda⁷, Ngoc Bich Nguyen², Takashi Yamaguchi⁸

Affiliations

¹ Department of Civil and Environmental Engineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188, Japan; Department of Chemical Engineering, Hanoi University of Science and Technology, No.1 Dai Co Viet, Hai Ba Trung, Hanoi, Viet Nam; Environmental Engineering and Water Technology Department, UNESCO-IHE, PO Box 3015, 2601 DA Delft, The Netherlands.
² Rubber Research Institute of Vietnam, Km42, Road 13, Ben Cat, Binh Duong 827211, Viet Nam.
³ Department of Civil and Environmental Engineering, National Institute of Technology, Kure College, 2-2-11, Agaminami, Kure, Hiroshima 737-8506, Japan.
⁴ Department of Science of Technology Innovation, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188, Japan.
⁵ Department of Civil and Environmental Engineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188, Japan; Top Runner Incubation Center for Academia-Industry Fusion, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188, Japan.
⁶ Center for Regional Environmental Research, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaragi 305-8506, Japan.
⁷ Department of Bioengineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188, Japan.
⁸ Department of Civil and Environmental Engineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188, Japan; Department of Science of Technology Innovation, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188, Japan. Electronic address: [email protected].

PMID: 28318934
DOI: 10.1016/j.biortech.2017.02.058

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 267days. 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±0.6kg-COD·m^-3·day^-1. The final effluent of the proposed system had 140±64mg·L^-1 of total COD, 31±12mg·L^-1 of total BOD, and 58±24mg-N·L^-1 of total nitrogen. The system could significantly reduce 92% of greenhouse gas emissions and 80% of hydraulic retention times compared with current treatment systems.

Keywords: 16S rRNA gene sequencing; Greenhouse gases emission; Natural rubber processing wastewater; UASB–DHS system.

MeSH terms

Anaerobiosis
Bioreactors
Rubber
Sewage*
Vietnam
Waste Disposal, Fluid*
Wastewater*

Substances

Sewage
Waste Water
Rubber