Experimental investigation on anaerobic co-digestion of food waste and water hyacinth in batch type reactor under mesophilic condition

Zala, Mayank; Solanki, Ravi; Bhale, Purnanand V.; Vaishak, S.

doi:10.1007/s13399-019-00522-1

Cited by 20 publications

(18 citation statements)

References 15 publications

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“…hydrolysis, acidogenesis, acetogenesis and methanogenesis. In case of complex substrates, the hydrolysis is the rate-limiting step, where hydrolytical bacteria release extracellular enzymes which break down organic particulate matter and allow it to solubilize [5].…”

Section: Introductionmentioning

confidence: 99%

“…Temperature and time usually range between 120 ºC and 160 ºC within 1h [20]. Most of the published results show an increase in methane production at temperatures around 160 ºC and excess pressures of [5][6] bars [21,22]. Bougrier et al [23] reported that the use of higher temperatures (˃ 180 ºC) decreased the biodegradability of the wastes.…”

Section: Introductionmentioning

confidence: 99%

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Impact of soft hydrothermal pre-treatments on the olive mill solid waste characteristics and its subsequent anaerobic digestion

Fernández-Rodríguez

Lama-Calvente

Jiménez‐Rodríguez

et al. 2020

Biomass Conv. Bioref.

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The aim of this study was to investigate the effect of a soft-hydrothermal pre-treatment (SHP) on olive mill solid waste (OMSW) and its subsequent anaerobic digestion (AD). OMSW was pre-treated in an autoclave at temperatures of 121 ºC and 133 ºC and excess pressures of 1.1 and 2.1 bars, respectively at heating times of 15, 20 and 30 minutes. The digestibility of pre-treated and untreated OMSW was determined in terms of methane potential through using biochemical methane potentials tests (BMP). An important solubilisation of high valuable compounds such us hydroxytyrosol, and 3,4dihydroxyphenylglycol was observed after pre-treatments. SHP showed a significant reduction on fiber length and width (p < 0.05). A higher polysaccharides solubilisation was observed in treatment at 121 ºC comparing with that observed at 133 ºC. SHP carried out at 121 ºC, 1.1 bar (30 min) (pre-treatment A1), allowed obtaining the highest methane yield (380 ± 5 mL CH 4 /g VS), which was 12.3% higher than that obtained for untreated OMSW. Pearson correlation (PEC) and Principal Component Analysis (PCA) were carried out. PEC showed a positive correlation with phenol vanillic acid and PCA grouped pre-treatment A1 with polysaccharides solubilization. The influence of the SHP conditions on the AD of OMSW was assessed through the monitoring of process performance and calculation of kinetic parameters by using the Transference Function model.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Impact of soft hydrothermal pre-treatments on the olive mill solid waste characteristics and its subsequent anaerobic digestion

Fernández-Rodríguez

Lama-Calvente

Jiménez‐Rodríguez

et al. 2020

Biomass Conv. Bioref.

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“…Furthermore, WH's energy potential is significant and encouraging. According to Castro and Agblevor, 2020 [84], one tonne of fresh biomass can produce 846.5 MJ of energy, with just 6.8 percent of the total energy required for mechanical harvesting. As a result, while power is necessary to collect the WH biomass from its infested water body, the total energy provided by the biomass is more than enough to keep operations running.…”

Section: Biogas Productionmentioning

confidence: 99%

Invasive Water Hyacinth Challenges, Opportunities, Mitigation, and Policy Implications: The Case of the Nile Basin

Nega¹,

Ramayya²,

Afessa³

et al. 2023

Sustainable Development

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Many lakes and rivers all over the globe are experiencing environmental, human health, and socio-economic development issues due to the spread of invasive water hyacinth (WH) weed. WH is regarded as one of the world’s most destructive weeds and is nearly impossible to control and eliminate due to its rapid expansion and ability to double its coverage area in 13 days or fewer. However, most people in developing countries appear to be hoping for a miraculous cure; there are none and never will be. In this regard, this chapter aims to give an insight to raise awareness, research its biology and challenges, management options, and potential prospects on integrated control-valorization and its policy implications. WH biomass has demonstrated potential as a biorefinery feedstock for bioenergy and biofertilizer production, heavy metal phytoremediation, handicraft and furniture making, animal feed, and other applications. As a result, large-scale integrated control and valorization is an economically viable strategy for preventing further infestation through incentivizing WH control: providing a sustainable environment, increasing energy mix, increasing fertilizer mix, increasing food security, reducing GHG emissions, boosting socio-economic development, and creating new green jobs for local and riparian communities. Therefore, it is a leap forward in addressing global sustainable development goals (SDGs) through the water-energy-food-ecosystem (WEFE) nexus.

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“…One advantage of co-digesting water hyacinth with other substrates is that the stability of the process can be improved. The addition of water hyacinth to food waste in the digester feed was found to maintain pH values in the optimum range as the plant acts as an organic nutrient and buffer agent [ 118 ]. Zhao et al [ 119 ] also argued that the co-digestion of food waste and waste-activated sludge mitigates the effects of salt and pH variation on biogas production.…”

Section: Prospects For Water Hyacinthmentioning

confidence: 99%

“…The energy potential of water hyacinth is substantial and encouraging. Castro and Agblevor [ 118 ] estimated that 846.5 MJ of energy can be produced from one tonne of fresh biomass and only 6.8% of that energy produced is required for mechanical harvesting. Therefore, although energy is required to harvest the water hyacinth biomass from its aquatic environment, the total energy produced from the biomass is more than sufficient to maintain continuous operations.…”

Section: Prospects For Water Hyacinthmentioning

confidence: 99%

Invasive Water Hyacinth: Ecology, Impacts and Prospects for the Rural Economy

Harun

Pushiri

Juhari

et al. 2021

Plants

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Water hyacinth (WH) is notorious for causing severe environmental degradation and being an economic burden to manage. However, it offers substantial prospects if exploited, especially by rural communities. High temperatures, eutrophic conditions and other environmental factors promote the proliferation of the plant in regions where it has been introduced. Regarded as among the world’s worst invasive weeds, WH is nearly impossible to control and eradicate without an integrated approach and community participation. The effectiveness of control methods varies, yet sustained community involvement determines the long-term success of these methods. Reproducing rapidly, WH has the resource capacity to support a unique microeconomic ecosystem, incentivising WH control by generating sustainable income. The WH ecology, the socioeconomic impacts of its invasion and its various applications are reviewed, and revenue generation and cost-saving options are highlighted. A circular microeconomic model is proposed by integrating WH valorisation into the general limitations of a rural community. Empowering locals with opportunities and enticing them with potential economic gains can be a nudge towards a pro-environment behavioural change in managing WH. This would aid in upgrading local livelihoods and could foster resilience within the community in tackling both environmental problems and economic setbacks through the management of WH invasions.

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Experimental investigation on anaerobic co-digestion of food waste and water hyacinth in batch type reactor under mesophilic condition

Cited by 20 publications

References 15 publications

Impact of soft hydrothermal pre-treatments on the olive mill solid waste characteristics and its subsequent anaerobic digestion

Impact of soft hydrothermal pre-treatments on the olive mill solid waste characteristics and its subsequent anaerobic digestion

Invasive Water Hyacinth Challenges, Opportunities, Mitigation, and Policy Implications: The Case of the Nile Basin

Invasive Water Hyacinth: Ecology, Impacts and Prospects for the Rural Economy

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