Enhancing anaerobic digestion for rural wastewater treatment with granular activated carbon (GAC) supplementation

Park, Jeong Hoon; Park, Jong‐Hun; Lee, Sanghoon; Kim, Eun Jung; Kim, Jun Seok

doi:10.1016/j.biortech.2020.123890

Cited by 44 publications

(22 citation statements)

References 35 publications

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“…Our recent study showed that the addition of inorganic materials due to their physicochemical properties can increase the buffer capacity of AcoD, facilitate the higher VFA production and conversion, and increase the methane production yield (Bardi and Rad 2019). Apart from the physicochemical contribution of inorganic additives for enhancement of the AcoD process (Deheri and Acharya 2021;Mancini et al 2019;Namal 2019;Yuan et al 2021), it was concluded that the inorganic solid granule acts as a supportive media for microbial colonization and facilitates their interspecies interactions in favor of the AcoD process (Lü et al 2016;Park et al 2020;Ma et al 2020;Sharma et al 2018). Therefore, it can be assumed that the physicochemical properties of WS could increase the buffer capacity of system and stimulate the activity of hydrolytic bacteria and methanogenesis for higher biogas generation.…”

Section: The Evaluation Of Acod Performance After Addition Of Ws (R1-r3)mentioning

confidence: 99%

Enhancement of anaerobic co-digestion performance at the high organic load by application of waste seashell: the synergistic impacts of alkaline additive

Bardi

Oliaee

2021

Int. J. Environ. Sci. Technol.

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This study aims to enhance the performance of a low-buffered anaerobic co-digestion of food waste and sewage sludge using an alkaline-based additive (waste seashell). Eighteen lab-scaled reactors were performed to evaluate the synergistic effects of waste seashell on methane production at different organic load. The addition of waste seashell showed significant synergistic effects with organic load on the anaerobic co-digestion performance in reducing the inhibitory level of volatile fatty acids and ammonia by (i) increasing buffer capacity of the systems, (ii) providing various slats, and (iii) changing the methanogenic pathway for achieving higher methane production yield. The addition of waste seashell with the concentration of 8 g/L, 20 g/L, and 26 g/L declined the propionic accumulation by 55%, 54%, and 49%, respectively, compared to their peer reactor at the same organic load. The utilization of waste seashell at 26 g/L increased the methane yield up to 219 mLCH 4 /gVS at an organic load of 15.6 gVS/L, represented 6.44, and 7.8-times higher methane yield and organic load increment, respectively, than that of conventional anaerobic co-digestion. However, at further increase of waste seashell and organic load, the anaerobic co-digestion showed low methane generation of 89.3 mL CH 4 /gVS due to the inhibitory impacts of calcium concentration on the biological process.Editorial responsibility: Jing Chen.

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Section: The Evaluation Of Acod Performance After Addition Of Ws (R1-r3)mentioning

confidence: 99%

Enhancement of anaerobic co-digestion performance at the high organic load by application of waste seashell: the synergistic impacts of alkaline additive

Bardi

Oliaee

2021

Int. J. Environ. Sci. Technol.

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“…Anaerobic digestion (AD) is an eco-friendly biological process which is universally used for the treatment of agricultural, industrial and municipal wastewater around the world [1][2][3][4]. Its utilization is increasingly widely, due to its capacity for producing methane, which can be used afterwards as a heat source or for electricity generation, taking part within the low-carbon energy technologies and circular bio-economy [5].…”

Section: Introductionmentioning

confidence: 99%

A Framework Based on Finite Element Method (FEM) for Modelling and Assessing the Affection of the Local Thermal Weather Factors on the Performance of Anaerobic Lagoons for the Natural Treatment of Swine Wastewater

Brito-Espino

Martín

Báez

et al. 2021

Water

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Anaerobic lagoons are natural wastewater treatment systems suitable for swine farms in small communities due to its low operational and building costs, as well as for the environmental sustainability that these technologies enable. The local weather is one of the factors which greatly influences the efficiency of the organic matter degradation within anaerobic lagoons, since microbial growth is closely related to temperature. In this manuscript, we propose a mathematical model which involves the two-dimensional Stokes, advection–diffusion-reaction and heat transfer equations for an unstirred fluid flow. Furthermore, the Anaerobic Digestion Model No1 (ADM1), developed by the International Water Association (IWA), has been implemented in the model. The partial differential equations resulting from the model, which involve a large number of state variables that change according to the position and the time, are solved through the use of the Finite Element Method. The results of the simulations indicated that the methodology is capable of predicting reasonably well the steady-state of the concentrations for all processes that take place in the anaerobic digestion and for each one of the variables considered; cells, organic matter, nutrients, etc. In view of the results, it can be concluded that the model has significant potential for the design and the study of anaerobic cells’ behaviour within free flow systems.

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“…Recent advances in analytical technologies allow complex bioconversion processes to be controlled and deciphered. Few parameters in this process are routinely recorded continuously and immediately, such as pH, ORP, gas production rate, and flow rates [16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Proposal of a Laboratory-Scale Anaerobic Biodigester for Introducing the Monitoring and Sensing Techniques, as a Potential Learning Tool in the Fields of Carbon Foot-Print Reduction and Climate Change Mitigation

Brito-Espino

León

Reboso

et al. 2021

Water

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This article presents a proposal of an anaerobic biodigester on a laboratory scale for introducing the monitoring and sensing techniques of the growth of microorganisms according to different parameters, where the redox potential, pH, pressure, and temperature have been measured in quasi-continuous mode. For this task, a microcontroller system was used (Atmega328—Arduino). Importantly, the design is based on flexible and open-source software, hardware, and firmware (Scilab, Arduino, Processing), facilitating its modification for other related studies. This design was developed to help engineering students to learn and to understand the operation of an anaerobic biodigester, which allows us to know various properties of the system at any time, as well as its evolution over time. In this way, property curves can be drawn and related to each other to obtain a better understanding of the biodigester operation. In this context, the relationship between the oxide-reduction reaction and microbial activity was studied so that the redox potential can be a way of measuring the growth of microorganisms in an anaerobic environment. With all this, through these parameters, it is possible to introduce to engineering students the operation of this technology used normally like a very powerful tool for the control of the carbon footprint, for example in wastewater sector, and consequently for the mitigation of the climate change.

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Enhancing anaerobic digestion for rural wastewater treatment with granular activated carbon (GAC) supplementation

Cited by 44 publications

References 35 publications

Enhancement of anaerobic co-digestion performance at the high organic load by application of waste seashell: the synergistic impacts of alkaline additive

Enhancement of anaerobic co-digestion performance at the high organic load by application of waste seashell: the synergistic impacts of alkaline additive

A Framework Based on Finite Element Method (FEM) for Modelling and Assessing the Affection of the Local Thermal Weather Factors on the Performance of Anaerobic Lagoons for the Natural Treatment of Swine Wastewater

Proposal of a Laboratory-Scale Anaerobic Biodigester for Introducing the Monitoring and Sensing Techniques, as a Potential Learning Tool in the Fields of Carbon Foot-Print Reduction and Climate Change Mitigation

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