A comprehensive review of experimental studies on aerobic digestion of wastewater sludge

Sivamani, S.; Binnal, Prema; Cuento, Azucena; Al-Shahri, Atsloom; Al-Mahri, Maryam; Rafeet, Muna; Shamas, Muna; Al-Awaid, Abdullah

doi:10.1016/b978-0-12-821014-7.00007-1

Cited by 5 publications

(4 citation statements)

References 30 publications

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“…Psychrophilic: around 10-20 °C (or less than 30 °C), mesophilic: about 30-40 °C, and thermophilic: about 50-55 °C (or may reach 60 °C) are the three general temperature ranges that each favor a unique species of microorganism [25]. Anaerobic bacteria are the most active microorganisms in the mesophilic and thermophilic ranges, according to previous studies [8,15,25]. Extreme temperatures, either very high or very low, destroy the anaerobes, effectively stopping the AD process.…”

Section: Temperaturementioning

confidence: 99%

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Reactor Design for Biogas Production-A Short Review

Banerjee¹,

Prasad²,

Sivamani³

2021

JEPT

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Biogas is an alternative to gaseous biofuels and is produced by the decomposition of biomass from substances such as animal waste, sewage sludge, and industrial effluents. Biogas is composed of methane, carbon dioxide, nitrogen, hydrogen, hydrogen sulfide, and oxygen. The anaerobic production of biogas can be made cheaper by designing a high throughput reactor and operating procedures. The parameters such as substrate type, particle size, temperature, pH, carbon/nitrogen (C/N) ratio, and inoculum concentration play a major role in the design of reactors to produce biogas. Multistage systems, batch, continuous one-stage systems, and continuous two-stage systems are the types of digesters used in the industry for biogas production. A comprehensive review of reactor design for biogas production is presented in the manuscript.

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Section: Temperaturementioning

confidence: 99%

“…During biogas production, biopolymers are converted to biogas under anaerobic conditions [7]. Anaerobic digestion involves hydrolysis, acidogenesis, acetogenesis, and methanogenesis [8]. Hydrolysis involves the breakdown of biopolymers into their monomers in the presence of water [9].…”

Section: Introductionmentioning

confidence: 99%

Reactor Design for Biogas Production-A Short Review

Banerjee¹,

Prasad²,

Sivamani³

2021

JEPT

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show abstract

“…There are four types of bacteria: (i) hydrolytic (carbohydrate hydrolysis), (ii) acidogenic (monomeric components to organic acid), (iii) acetogenic and homoacetogenic (organic acid to acetic acid), and (iv) methanogenic (acetic acid to methane and carbon dioxide -methane production) [19][20][21][22]. However, various parameters including concentration of substrate, temperature, pH of the substrate, stirring speed, C/N ratio, and so on affect biogas production [23][24][25]. The existence of certain organic material has been suggested as a way to boost biogas generation [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Biomethanation Process of Eichhornia Crassipes Using Ferric Chloride Catalyst

Banerjee,

Sivamani

2024

Preprint

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In tropical areas, water hyacinth is one of the significant and large sources of biomass that can be used to produce biogas. The purpose of this strategy is to enhance sustainability, precise energy present, ease of transport, etc. of the original biofuel feedstock or to extract gases. In a semi batch digester, an experimental investigation on biomethanation of water hyacinth was carried out. Temperature, stirring speed and catalyst concentration affect the rate of biogas production. The catalyst has been discovered to primarily boost the rate of biogas production from water hyacinth. As the catalyst is used here to boost up the biomethanation reaction, the effect of catalyst in different kinetic parameters is investigated.

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“…The discharge and accumulation of organic substances in wastewater can result in heavy pollution of water. At present, the widely used aerobic digestion treatment can efficiently decompose organic pollutants in wastewater into carbon dioxide under the action of microorganisms [ 9 ]. However, like other conventional wastewater treatment methods, this treatment still results in a lack of potential utilization of chemical energy in organic pollutants.…”

Section: Introductionmentioning

confidence: 99%

A Review of Recent Advances in Microbial Fuel Cells: Preparation, Operation, and Application

Wang

Ren

Zhu

et al. 2022

BioTech

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The microbial fuel cell has been considered a promising alternative to traditional fossil energy. It has great potential in energy production, waste management, and biomass valorization. However, it has several technical issues, such as low power generation efficiency and operational stability. These issues limit the scale-up and commercialization of MFC systems. This review presents the latest progress in microbial community selection and genetic engineering techniques for enhancing microbial electricity production. The summary of substrate selection covers defined substrates and some inexpensive complex substrates, such as wastewater and lignocellulosic biomass materials. In addition, it also includes electrode modification, electron transfer mediator selection, and optimization of operating conditions. The applications of MFC systems introduced in this review involve wastewater treatment, production of value-added products, and biosensors. This review focuses on the crucial process of microbial fuel cells from preparation to application and provides an outlook for their future development.

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A comprehensive review of experimental studies on aerobic digestion of wastewater sludge

Cited by 5 publications

References 30 publications

Reactor Design for Biogas Production-A Short Review

Reactor Design for Biogas Production-A Short Review

Enhancement of Biomethanation Process of Eichhornia Crassipes Using Ferric Chloride Catalyst

A Review of Recent Advances in Microbial Fuel Cells: Preparation, Operation, and Application

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