Assessment of anaerobic biodegradability of five different solid organic wastes

Kristanto, Gabriel Andari; Asaloei, Huinny

doi:10.1063/1.4979245

Cited by 4 publications

(4 citation statements)

References 14 publications

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“…Aerobic microorganisms can consume oxygen to decompose organic matter to CO 2 and H 2 O, providing energy and cell substances for microorganisms [59]. Anaerobic bacteria can break down organic matter to produce methane for energy and nutrition [60]. Rhizosphere oxygen plays an essential role in the degradation of organism transformation and mineralized microorganisms.…”

Section: Effects On Organic Matter Removalmentioning

confidence: 99%

Constructed Wetlands: A Review on the Role of Radial Oxygen Loss in the Rhizosphere by Macrophytes

Wang

Xie

et al. 2018

Water

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Constructed wetlands (CWs) are extensively used as an economical and environmentally friendly sewage treatment under ecological engineering technology. Knowledge of the oxygen in the rhizosphere is of primary importance in understanding the function and regulation of microbial communities and macrophytes. Numerous studies on radial oxygen loss (ROL) have greatly elucidated the mechanism of contaminant removal in CWs. The main sources of oxygen in CWs are atmospheric reoxygenation, macrophyte transmission, and artificial aeration. However, artificial aeration is very expensive, and atmospheric reoxygenation is limited. Therefore, ROL by macrophytes is an essential and economical approach for oxygen input in CWs. In this review, we attempted to study the role of macrophytes in CWs. We described the mechanism of ROL and summarized the methods for determining ROL. We also investigated the role of ROL in contaminant removal in CWs. This review will provide considerable useful information on the oxygen input of CWs.

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Section: Effects On Organic Matter Removalmentioning

confidence: 99%

Constructed Wetlands: A Review on the Role of Radial Oxygen Loss in the Rhizosphere by Macrophytes

Wang

Xie

et al. 2018

Water

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“…The addition of TD as a co-substrate in AD of WGv slightly increased the C/N ratio. Despite the value is still lower than the ideal condition (20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30), a slight increase in C/N ratio of mixture substrate may contribute to increase the biogas and methane yield, as previously reported in Hagos et al [59]. Tait et al [72] added that factors such as substrate compositions (i.e.…”

Section: Feedstock Characteristicsmentioning

confidence: 93%

“…Mateos-Aparicio et al [21] added that TD contains protein (33.4%TS), crude fat (8.5%TS), crude fiber (54.3%TS) and ash (3.7%TS). The TD has been used for cattle feedstock, culture medium for single protein production [22]; and biogas production [23]. Furthermore, the Indonesian government supports the creation of sustainable agroindustry through waste to bioenergy approach.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, several studies have also investigated the methane potential from TD as a mono-or co-digestion feedstock in AD process. For example, Kristanto and Asaloe [23] reported that methane production from AD of TD was 77 mL from 195 mg COD/kg TD in 30 days. While, Ni'mah [49] found that when mixing TD with cattle manure at ratio of 50:50 with volatile solids/VS of 3%, methane concentration increase to 68.98%.…”

Section: Introductionmentioning

confidence: 99%

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Enhancing anaerobic digestion of wild seaweed Gracilaria verrucosa by co-digestion with tofu dregs and washing pre-treatment

Suhartini

Indah

Rahman

et al. 2022

Biomass Conv. Bioref.

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Marine biomass (such as wild seaweed Gracilaria verrucosa) is highly abundant in Indonesia and has been highlighted as a potential biomass resource for bioenergy production. Furthermore, agro-industrial waste (such as tofu dregs/TD which arises from large scale production in the country) is rich in carbohydrates and proteins, and is therefore considered a viable feedstock for production of high-value added products. This study aimed to investigate the co-digestion of wild seaweed G. verrucosa (WGv) with TD and its impacts on biogas and methane production. The biochemical methane potential (BMP) test was operated for 28 days at temperature of 37 o C. The co-digestion of WGv with TD at 90:10 and 80:20 ratios significantly increased the specific methane potential (SMP), giving an average of 98 LCH4/kgVS and 120 L CH4/kgVS, respectively. Addition of co-digestion substrates promoted co-metabolism in the digesters, increasing the ability of the microorganism to effectively digest the organic matter present in the feedstock's mixture. The washing pre-treatment reduced the concentration of inorganic compounds and salts within the wild seaweed G. verucosa, leading to an improvement in biogas and methane yield. The mass balance illustrated that this process configuration led to a reduction in the quantity of digestate to be managed (i.e. dewatering, transport, and land/soil application). This will subsequently reduce the cost and energy requirements for sludge management, estimated at 37%. Therefore, the co-digestion of WGv with TD and the application of a washing pre-treatment stage prior to AD can positively enhance biogas and methane production. Indepth investigation for optimal valorisation using AD technology is highly essential.

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Ecotoxicity of alkaline residue from the pulp and paper industry to soil faunal organisms

Biasi,

Freitas,

Lunardi

et al. 2024

Chemosphere

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Assessment of anaerobic biodegradability of five different solid organic wastes

Cited by 4 publications

References 14 publications

Constructed Wetlands: A Review on the Role of Radial Oxygen Loss in the Rhizosphere by Macrophytes

Constructed Wetlands: A Review on the Role of Radial Oxygen Loss in the Rhizosphere by Macrophytes

Enhancing anaerobic digestion of wild seaweed Gracilaria verrucosa by co-digestion with tofu dregs and washing pre-treatment

Ecotoxicity of alkaline residue from the pulp and paper industry to soil faunal organisms

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