Solid State Anaerobic Fermentation of Sorted Municipal Solid Waste under Thermophilic Condition

This study investigate the Solid state anaerobic digestion of Municipal Solid waste from Chidambaram Municipality with high solid content (20%) by using Solid state Anaerobic fermenter under thermophilic condition (550c). This study describes the digestion of the reactor which was conducted over a period of 40 days in a batch process. The fresh organic fraction of municipal solid waste is feeded (which is equal to 80% of the total reactor volume) with 20% TS and it was mixed with 30% of two different inoculums such as cow dung and anaerobic sludge with mixing proportion of 2:1 ratio. During the start up phase, the reactor was run under mesophilic condition (370c) and then it was shifted to thermophilic condition (550c) by gradually increasing the temperature rate by 20c per day. During the stat up phase, the gas production was fluctuated initially and gradually increased from 9th Day to 19th Day and the highest gas production of 225 L/d and the methane composition of 66% were achieved at the 20th Day.

Download Full-text

Combustible gas production during catalytic pyrolysis of municipal solid waste

Energy Sources Part A Recovery Utilization and Environmental Effects ◽

10.1080/15567036.2015.1076908 ◽

2017 ◽

Vol 39 (3) ◽

pp. 277-283 ◽

Cited By ~ 1

Author(s):

Di Yang ◽

Qiang Xie ◽

Xinqian Shu ◽

Yiman Jia ◽

Jinwei Jia ◽

...

Keyword(s):

Municipal Solid Waste ◽

Solid Waste ◽

Catalytic Pyrolysis ◽

Gas Production ◽

Combustible Gas

Download Full-text

Co-composting of cow dung, municipal solid waste, roadside pond sediment and tannery sludge: role of human hair

International Journal of Environmental Science and Technology ◽

10.1007/s13762-016-1167-0 ◽

2016 ◽

Vol 14 (3) ◽

pp. 577-594 ◽

Cited By ~ 11

Author(s):

T. Karak ◽

F. R. Kutu ◽

R. K. Paul ◽

K. Bora ◽

D. K. Das ◽

...

Keyword(s):

Municipal Solid Waste ◽

Solid Waste ◽

Human Hair ◽

Cow Dung ◽

Tannery Sludge ◽

Pond Sediment

Download Full-text

The generation of a mathematical model of the biogas production process from organic municipal solid waste

E3S Web of Conferences ◽

10.1051/e3sconf/202018002019 ◽

2020 ◽

Vol 180 ◽

pp. 02019 ◽

Cited By ~ 1

Author(s):

Marzhan Temirbekova ◽

Madina Aliyarova ◽

Iliya Iliev ◽

Aliya Yelemanova ◽

Saule Sagintayeva

Keyword(s):

Mathematical Model ◽

Municipal Solid Waste ◽

Solid Waste ◽

Anaerobic Fermentation ◽

Biogas Production ◽

Biogas Plant ◽

Model Parameters ◽

Biochemical Processes ◽

Biogas Plants ◽

The Mathematical Model

This paper justifies the efficiency of the biogas collection and utilization at the MSW (municipal solid waste) landfill in Almaty with the installation of several modern biogas plants. The optimal mode of processes occurring in a biogas plant is determined by computer generated simulations. Mathematical model parameters were identified to describe biochemical processes occurring in a biogas plant. Two approaches are used to resolve the mathematical model: the finite-difference method for solving the system of differential equations and simulation modeling by using the Any Logic package. A program is written in the algorithmic language C ++. Numerous calculations were carried out, the results of which are presented in curves and their qualitative picture is consistent with the ongoing processes. The created computer program allows to make a preliminary forecast of anaerobic fermentation occurring in the bioreactor depending on volume of the substrate, methane microorganisms and temperature conditions.

Download Full-text

Rheology of sludge from double phase anaerobic digestion of organic fraction of municipal solid waste

Water Science & Technology ◽

10.2166/wst.2000.0055 ◽

2000 ◽

Vol 41 (3) ◽

pp. 51-59 ◽

Cited By ~ 12

Author(s):

P. Battistoni ◽

P. Pavan ◽

J. Mata-Alvarez ◽

M. Prisciandaro ◽

F. Cecchi

Keyword(s):

Anaerobic Digestion ◽

Municipal Solid Waste ◽

Solid Waste ◽

Pilot Scale ◽

Gas Production ◽

Organic Loading Rate ◽

Second Phase ◽

Organic Fraction ◽

Double Phase ◽

Long Term Experiment

In this paper experimental results on the anaerobic digestion of sewage sludge and organic fraction of municipal solid waste (OFMSW) by using a double phase process are reported. The long-term experiment has been carried out on a pilot scale plant, performed in different sets of operative conditions, during which granulometric distributions of particles in sludges and rheological properties of sludges were monitored. A significant fluidification of sludge was evidenced in the meso-thermo process, especially taking into account the variation in sludge behaviour from the first to the second phase. In the thermo-thermo process a fluidification higher than that shown in meso-thermo conditions is not observed, this suggesting that better results in terms of sludge conditioning can be obtained in a long time spent in thermophilic anaerobic digestion. Total volatile solids (TVS) and total fixed solids (TFS) become the most important parameters when mathematical modelling is applied to these processes.In the acidogenic phase, hydraulic retention time (HRT) and temperature are used to determine rigidity coefficient (RC), while only temperature is needed for yield stress (YC). Organic loading rate (OLR) and specific gas production (SGP) exert an important role in methanogenic phase description.

Download Full-text

Efficiency of Two-Phase Anaerobic Fermentation and the Physicochemical Properties of the Organic Fraction of Municipal Solid Waste Processed in a Vortex-Layer Apparatus

Applied Biochemistry and Microbiology ◽

10.1134/s0003683820060113 ◽

2020 ◽

Vol 56 (6) ◽

pp. 736-742 ◽

Cited By ~ 1

Author(s):

E. R. Mikheeva ◽

I. V. Katraeva ◽

D. L. Vorozhtsov ◽

Yu. V. Litti ◽

A. N. Nozhevnikova

Keyword(s):

Physicochemical Properties ◽

Municipal Solid Waste ◽

Solid Waste ◽

Anaerobic Fermentation ◽

Organic Fraction ◽

Two Phase ◽

Vortex Layer

Download Full-text

Effective Anaerobic Bio-Treatment of Fresh Leachate From Municipal Solid Waste Incineration Plant by Full-Scale Internal Circulation Reactor

Journal of Energy Resources Technology ◽

10.1115/1.4042085 ◽

2018 ◽

Vol 141 (4) ◽

Author(s):

Tao Wang ◽

Zhenxing Huang ◽

Hongyan Ren ◽

Hengfeng Miao ◽

Minxing Zhao ◽

...

Keyword(s):

Municipal Solid Waste ◽

Solid Waste ◽

Removal Efficiency ◽

Full Scale ◽

Cod Removal ◽

Anaerobic Sludge ◽

Internal Circulation ◽

Biogas Yield ◽

Cod Removal Efficiency ◽

Effluent Recirculation

This study aimed to investigate the effectiveness of the full-scale internal circulation (IC) reactor in biodegrading of municipal solid waste (MSW) fresh leachate under mesophilic conditions, where the anaerobic process stability, biogas yield, and sludge granulation were intensively investigated. The effects of operational parameters on the influent organic loading rate (OLR), chemical oxygen demand (COD) removal efficiency, alkalinity (ALK), pH, volatile fatty acids (VFAs) accumulation, and effluent recirculation were also studied. The results showed that the reactor operated stably and effectively. The COD removal efficiency and biogas yield could be maintained at (92.8 ± 2.0)% and (0.47 ± 0.05) m3/kg CODremoval, respectively, with the influent OLR (24.5 ± 0.9) kg COD/(m3 d) and hydraulic retention time (HRT) 2.7d during the stable operation phase. Meanwhile, this study demonstrated that 1.5–3.0 m/h would be the optimal Vup for the reactor, corresponding to the effluent recirculation of 32.5–78.0 m3/h. Moreover, it was found that the content of extracellular polymeric substances (EPS) in the anaerobic sludge increased from 50.3 to 140.7 mg/g volatile suspended solids (VSS), and the sludge had good granular performance during the reactor operation.

Download Full-text