Two-stage anaerobic digestion of biodegradable municipal solid waste using a rotating drum mesh filter bioreactor and anaerobic filter

2009 ◽  
Vol 100 (18) ◽  
pp. 4121-4126 ◽  
Author(s):  
M. Walker ◽  
C.J. Banks ◽  
S. Heaven
Keyword(s):  
Anaerobic Digestion ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Rotating Drum ◽  
Two Stage ◽  
Anaerobic Filter

scholarly journals Two-stage anaerobic digestion of the organic fraction of municipal solid waste – Effects of process conditions during batch tests

2018 ◽  
Vol 126 ◽  
pp. 14-20 ◽  
Author(s):  
Maria Cristina Lavagnolo ◽  
Francesca Girotto ◽  
Razieh Rafieenia ◽  
Luciano Danieli ◽  
Luca Alibardi
Keyword(s):  
Anaerobic Digestion ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Process Conditions ◽  
Organic Fraction ◽  
Two Stage ◽  
Batch Tests

Development of a coarse membrane bioreactor for two-stage anaerobic digestion of biodegradable municipal solid waste

2009 ◽  
Vol 59 (4) ◽  
pp. 729-735 ◽  
Author(s):  
M. Walker ◽  
C. J. Banks ◽  
S. Heaven
Keyword(s):  
Municipal Solid Waste ◽  
Pore Size ◽  
Solid Waste ◽  
Methane Production ◽  
Large Scale ◽  
Membrane Bioreactor ◽  
Solid Substrate ◽  
Organic Loading Rate ◽  
Two Stage ◽  
Anaerobic Filter

A laboratory-scale coarse membrane bioreactor was developed to test its potential for the enhanced degradation of biodegradable municipal (solid) waste. The purpose of the mesh was to retain solid substrate and biomass in the reactor, promoting optimal degradation while also allowing intermediate soluble compounds to be removed and degraded in a second reactor. Three reactors with nylon woven mesh membranes of pore sizes 30, 100 and 140 μm were operated at a solid and liquid retention time of 20 and 1.5 days respectively and fed at an organic loading rate of 3.75 gVS l−1 d−1. Liquid effluent was fed to an anaerobic filter reactor. The total methane production for the two stage systems was very similar at 0.21–0.22 l g−1 VS added (c.f. 0.26 l g−1 VS added for BMP). The effect of increasing the pore size of the mesh was to reduce the methane production in the first stage and transfer more of this to the filter reactor, with the proportion of the total methane produced in the first stage changing from 72% to 49% between 30 and 140 μm meshes. The VS content of the first stage effluent also increased with pore size so it is likely that the mechanism for the differences in methane production is one of solids/biomass retention. The 30 μm pore size is recommended for further work since it transmitted a lower solid and soluble loading to the anaerobic filter. Solids accumulation in the second stage, although causing no problems in the 85-day operational period of this trial, could lead to blocking of the anaerobic filter, which is undesirable on a large scale.

Bio-Hythane production from organic fraction of municipal solid waste in single and two stage anaerobic digestion processes

2019 ◽  
Vol 294 ◽  
pp. 122220 ◽  
Author(s):  
Chakali Prashanth Kumar ◽  
Rena ◽  
A. Meenakshi ◽  
Abhishek S. Khapre ◽  
Sunil Kumar ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Organic Fraction ◽  
Two Stage
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