PMID- 33071124
OWN - NLM
STAT- MEDLINE
DCOM- 20210218
LR  - 20210218
IS  - 1879-1026 (Electronic)
IS  - 0048-9697 (Linking)
VI  - 766
DP  - 2021 Apr 20
TI  - Long-term operation of the pilot scale two-stage anaerobic digestion of municipal 
      biowaste in Ho Chi Minh City.
PG  - 142562
LID - S0048-9697(20)36091-5 [pii]
LID - 10.1016/j.scitotenv.2020.142562 [doi]
AB  - A pilot-scale two-stage anaerobic digestion system, which includes a feed tank 
      (0.4 m(3)), a hydrolysis reactor (1.2 m(3)) followed by a methane fermenter 
      (4.0 m(3)) was set up and run at the municipal solid waste landfill located in Ho 
      Chi Minh City (HCMC), Vietnam. The feed that was separated from urban organic 
      solid waste was collected at households and restaurants in District 1, HCMC. This 
      study aimed to investigate the resource recovery performance of the pilot 
      two-stage anaerobic digestion system, in terms of carbon recovery via biogas 
      production and nutrient recovery from digestate. The average organic loading rate 
      (OLR) of the system was step increased from 1.6 kg volatile solids 
      (VS).m(-3).d(-1), 2.5 kg VS.m(-3).d(-1) and 3.8 kg VS.m(-3).d(-1) during 400 days 
      of operation. During the long-term operation at three OLRs, pH values and 
      alkalinity were stable at both hydrolysis and methanogenesis stages without any 
      addition of alkalinity for the methanogenesis phase. High buildup of propanoic 
      acid and total volatile fatty acid concentrations in the fermenter did not drop 
      pH values and inhibit the methanogenic process at high OLRs (2.5-3.8 kg VS 
      m(-3).d(-1)). The obtained total chemical oxygen demand (tCOD) removal 
      performance was 83-87% at the OLRs ranging from 2.5 kg VS.m(-3).d(-1) and 3.8 kg 
      VS.m(-3).d(-1), respectively. The highest biogas yield of 263 +/- 64 L.kg(-1) tCOD 
      removed obtained at OLR of 2.5 kg VS.m(-3).d(-1). It is expected that a full 
      scale 2S-AD plant with capacity of 5200 tons day(-1) of biowaste collected 
      currently from municipal solid waste in HCMC may create daily electricity of 552 
      MWh, thermal energy of 630 MWh, and recovery of 16.1 tons of NH(4)(+)-N, 11.4 
      tons of organic-N, and 2.1 tons of TP as both organic liquid and solid 
      fertilizers.
CI  - Copyright (c) 2020 Elsevier B.V. All rights reserved.
FAU - Nguyen, Phuoc-Dan
AU  - Nguyen PD
AD  - Centre Asiatique de Recherche sur l'Eau (CARE), Ho Chi Minh City University of 
      Technology (HCMUT), Ho Chi Minh City 700000, Viet Nam; Vietnam National 
      University Ho Chi Minh (VNU-HCM), Linh Trung ward, Thu Duc District, Viet Nam. 
      Electronic address: npdan@hcmut.edu.vn.
FAU - Tran, Nguyen-Sang Truong
AU  - Tran NT
AD  - Centre Asiatique de Recherche sur l'Eau (CARE), Ho Chi Minh City University of 
      Technology (HCMUT), Ho Chi Minh City 700000, Viet Nam.
FAU - Nguyen, Thuy-Truc
AU  - Nguyen TT
AD  - Centre Asiatique de Recherche sur l'Eau (CARE), Ho Chi Minh City University of 
      Technology (HCMUT), Ho Chi Minh City 700000, Viet Nam.
FAU - Dang, Bao-Trong
AU  - Dang BT
AD  - Key Laboratory of Advanced Waste Treatment, Ho Chi Minh City University of 
      Technology (HCMUT), Vietnam National University Ho Chi Minh City (VNU-HCM), Viet 
      Nam.
FAU - Le, Minh-Tam Thi
AU  - Le MT
AD  - Centre Asiatique de Recherche sur l'Eau (CARE), Ho Chi Minh City University of 
      Technology (HCMUT), Ho Chi Minh City 700000, Viet Nam.
FAU - Bui, Xuan-Thanh
AU  - Bui XT
AD  - Key Laboratory of Advanced Waste Treatment, Ho Chi Minh City University of 
      Technology (HCMUT), Vietnam National University Ho Chi Minh City (VNU-HCM), Viet 
      Nam.
FAU - Mukai, Fumitoshi
AU  - Mukai F
AD  - Hitachi Zosen Corporation, Osaka, Japan.
FAU - Kobayashi, Hidemasa
AU  - Kobayashi H
AD  - Hitachi Zosen Corporation, Osaka, Japan.
FAU - Ngo, Huu Hao
AU  - Ngo HH
AD  - Center for Technology in Water and Wastewater, School of Civil and Environmental 
      Engineering, University of Technology Sydney, Australia.
LA  - eng
PT  - Journal Article
DEP - 20201003
PL  - Netherlands
TA  - Sci Total Environ
JT  - The Science of the total environment
JID - 0330500
RN  - 0 (Biofuels)
RN  - OP0UW79H66 (Methane)
SB  - IM
MH  - Anaerobiosis
MH  - Biofuels
MH  - *Bioreactors
MH  - Methane/analysis
MH  - *Refuse Disposal
MH  - Vietnam
OTO - NOTNLM
OT  - Biowaste
OT  - Hydrolysis reactor
OT  - Methane fermenter
OT  - Two-stage anaerobic digestion
COIS- Declaration of competing interest The authors declare that they have no known 
      competing financial interests or personal relationships that could have appeared 
      to influence the work reported in this paper.
EDAT- 2020/10/20 06:00
MHDA- 2021/02/20 06:00
CRDT- 2020/10/19 05:29
PHST- 2020/05/18 00:00 [received]
PHST- 2020/09/14 00:00 [revised]
PHST- 2020/09/21 00:00 [accepted]
PHST- 2020/10/20 06:00 [pubmed]
PHST- 2021/02/20 06:00 [medline]
PHST- 2020/10/19 05:29 [entrez]
AID - S0048-9697(20)36091-5 [pii]
AID - 10.1016/j.scitotenv.2020.142562 [doi]
PST - ppublish
SO  - Sci Total Environ. 2021 Apr 20;766:142562. doi: 10.1016/j.scitotenv.2020.142562. 
      Epub 2020 Oct 3.