Biochemical methane potential (BMP) from anaerobic co-digestion of sewage sludge and decanter cake

Anuar, Norshafiqah Khairul; Man, Hasfalina Che; Idrus, Syazwani; Daud, Nik Norsyahariati Nik

doi:10.1088/1757-899x/368/1/012027

Cited by 6 publications

(7 citation statements)

References 18 publications

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“…The Carbon to Nitrogen ratio inequality constraint equation (59), was linearised and 2 inequalities were arrived at as shown in equation (61). where:…”

Section: Case Studymentioning

confidence: 99%

Biogas potential determination and production optimisation through optimal substrate ratio feeding in co-digestion of water hyacinth, municipal solid waste and cow dung

2020

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Modelling and optimisation of biogas production from different substrate mixtures is lagging behind in research and development. Current biogas production processes are not fully exploiting co-digestion of multifaceted biomaterials with manures and other biowastes. A model is presented for the determination of biogas production potential from Water Hyacinth (WH), Municipal Solid Waste (MSW), and Cow Dung (CD) as well as the subsequent optimisation of the co-digestion mix ratios of these substrates. In this study biogas is assumed to comprise of methane, carbon dioxide, ammonia and hydrogen sulphide. Baseline biogas potential yields of 747.4 ml/gVS , 790.83 ml/gVS and 884.24 ml/gVS were obtained from WH, MSW and CD respectively. A linear programming mathematical optimisation was done. The objective is to find substrate blend ratios in the co-digestion mixture that maximises biogas production. Optimal co-digestion results in percentage substrate blending ratios of 53.27 : 24.64 : 22.09 for WH, MSW and CD respectively in a case study. 1 kg of substrate mixture yields 124.56 m 3 of biogas which translates to 124560 ml/gVS . Co-digestion and optimisation of substrate blend mix proportions increased the biogas output by 157.11%. The biogas fratenity benefits in having an informed optimal co-digestion model that foretells substrate blending ratios.

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“…The Carbon to Nitrogen ratio inequality constraint equation (59), was linearised and 2 inequalities were arrived at as shown in equation (61). where:…”

Section: Case Studymentioning

confidence: 99%

Biogas potential determination and production optimisation through optimal substrate ratio feeding in co-digestion of water hyacinth, municipal solid waste and cow dung

2020

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“…Other co-digestion of DC with EFB, POME, waste water and sewage sludge have the potential to increase methane production. As discussed in N. Khairul Anuar's research (27) the characteristics of Sewage Sludge has high Nitrogen content but low in Carbon, while DC has high Carbon content but low Nitrogen content. By codigesting both substrates, it benefits each other by making an ideal composition for anaerobic digestion; increasing the methane yield by 8%.…”

Section: Decanter Cake (Dc)mentioning

confidence: 95%

“…Using different types of sludge from POME, anaerobic biogas, waste water and a combination of POME + biogas. in N. Khairul Anuar's research (27) shows the effect of inoculum comparing different S/I ratios which include a study without the use of inoculum. It showed that without inoculum the methane production will be low, although too much inoculum can also hinder the methane production.…”

Section: Decanter Cake (Dc)mentioning

confidence: 99%

Study of Biogas Production From Palm Oil Solid Wastes: A Review

Piolo¹,

Legowo²,

Widiputri³

2022

Advances in Biological Sciences Research

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In 2021 Indonesia currently provides 58% of global crude palm oil, resulting in enormous amounts of oil palm wastes. The purpose of this research is to determine which palm oil solid waste has the potential to be used as a substrate for biogas production, and what is the optimum method and parameter to produce an economically viable source of biogas. The method used for this research was by means of literature review, in which the data used were acquired from journals, thesis, reports and research papers. This research evaluates the different energy potentials of different oil palm wastes which are; Oil Palm Fronds (OPF), Empty Fruit Bunch (EFB), Decanter Cake (DC), Oil Palm Trunk (OPT) and Mesocarp Fibre (MF). Which resulted in EFB producing the highest yield of methane (429 mL CH4/g VS) at similar operating parameters and methods. The optimization of methane yield from the substrates were studied using different methods and operating parameters resulting in the highest methane yield of 617 mL CH4/g VS from co-digestion of DC + POME. Although, considering the economic viability; it was found that OPF as the waste from bioethanol production was most preferable, not only producing biogas but also bioethanol. It produced a high methane yield of 514 ml CH4/g VS at lower operating cost.

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“…The composition of the daily biogas produced was determined by a gas chromatograph (GC) (Agilent 6890) with thermal conductivity detector (TCD). Methane (CH4) gas quantity in 1 ml sample was calculated using Equation 1 (Alemahdi et al, 2015;Khairul et al, 2018).…”

Section: Biogas Measurement and Analysismentioning

confidence: 99%

“…Even if 28% TS gives the highest biogas produced compared to 12% and 20%, the methane content is low. This is due to the other biogas composition such as carbon dioxide and hydrogen that contribute more in terms of its composition (Khairul et al, 2018;Neshat et al, 2017). Biogas that contains high methane makes it a useful fuel to replace natural gas or can be transformed into heat and electricity (Jafari-Sejahrood et al, 2019).…”

Section: Methane Yield From Batch Fermentationmentioning

confidence: 99%

Anaerobic Co-digestion of Pineapple Wastes with Cow Dung: Effect of Different Total Solid Content on Bio-methane Yield

Hamzah

Mazlan

et al. 2020

Adv Agric Food Res J

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The abundance of agricultural wastes produced from pineapple processing and livestock industries has resulted in the difficulties of disposing of a large amount of waste. Anaerobic digestion is a way to reduce waste and generate renewable energy sources including biogas. In this study, pineapple waste is co-digested with cow dung in batch experiments under mesophilic temperature at 38±1°C at a working volume of 100 ml in 125 ml serum bottle. The effects of the total solid on methane yields are investigated at a different substrate ratio. The batch study is conducted at 3 different total solid which are 12%, 20% and 28% and at three different substrate ratio cow dung to pineapple waste (CD: PW) (1:1, 1:2 and 1:3). Daily biogas collection for 28% total solid at 1:1 ratio results in the highest cumulative biogas production of 313 ml, followed by 28% total solid at 1:3 ratio with 246 ml biogas yield. The highest methane yield is achieved at 12% total solid with a 1:2 ratio (17.19 CH4/g VS). Results show that at 12% total solid produces the highest methane yield at all ratios compared to other total solid percentages. Moreover, methane yield decreases as the total solid percentage increases from 12% to 28%. Overall, the production of methane from pineapple wastes co-digested with cow dung is proven to be a good strategy to minimise solid wastes.

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Biochemical methane potential (BMP) from anaerobic co-digestion of sewage sludge and decanter cake

Cited by 6 publications

References 18 publications

Biogas potential determination and production optimisation through optimal substrate ratio feeding in co-digestion of water hyacinth, municipal solid waste and cow dung

Biogas potential determination and production optimisation through optimal substrate ratio feeding in co-digestion of water hyacinth, municipal solid waste and cow dung

Study of Biogas Production From Palm Oil Solid Wastes: A Review

Anaerobic Co-digestion of Pineapple Wastes with Cow Dung: Effect of Different Total Solid Content on Bio-methane Yield

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