Prospects of Utilization of Liquid Fraction of Biogas Digestate as Substrate Supplement for Mushroom Cultivation

Kataki, Sampriti; Sarma, Gunajit; Patowary, Dipam; Baruah, D.C.

doi:10.1007/978-981-13-0215-2_32

Cited by 5 publications

(3 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A supplement is not included in the original substrate mix, but added upon spawning or after colonisation (Sinden, JW and Schisler, 1962a;1962b;Pardo-Giménez et al, 2012). Three studies tested supplementing with digestate liquids for Florida oyster mushroom cultivation (Ashwath et al, 2016;Malayil et al, 2016;Kataki et al, 2019), all of which reported positive effects on yield. In addition to testing horse manure digestate in mushroom compost, Savoie et al (2011) also tested digestate liquids as a compost supplement at spawning (with positive effect, but lower than achieved with a commercial supplement) and in the casing layer (which did not significantly change yield at low levels, but negatively affected yield when more than 15% was added by dry weight).…”

Section: Mushrooms From Composted and Anaerobically Digested Food Wastementioning

confidence: 99%

Efficiency of a novel “Food to waste to food” system including anaerobic digestion of food waste and cultivation of vegetables on digestate in a bubble-insulated greenhouse

et al. 2016

View full text Add to dashboard Cite

At urban locations certain challenges are concentrated: organic waste production, the need for waste treatment, energy demand, food demand, the need for circular economy and limited area for food production. Based on these factors the project presented here developed a novel technological approach for processing organic waste into new food. In this system, organic waste is converted into biogas and digester residue. The digester residue is being used successfully as a stand-alone fertilizer as well as main substrate component for vegetables and mushrooms for the first time - a "digeponics" system - in a closed new low energy greenhouse system with dynamic soap bubble insulation. Biogas production provides energy for the process and CO2 for the greenhouse. With very limited land use highly efficient resource recycling was established at pilot scale. In the research project it was proven that a low energy dynamic bubble insulated greenhouse can be operated continuously with 80% energy demand reduction compared to conventional greenhouses. Commercial crop yields were achieved based on fertilization with digestate; in individual cases they were even higher than the control yields of vegetables such as tomatoes, cucumber and lettuce among others. For the first time an efficient direct use of digestate as substrate and fertilizer has been developed and demonstrated.

show abstract

Section: Mushrooms From Composted and Anaerobically Digested Food Wastementioning

confidence: 99%

Efficiency of a novel “Food to waste to food” system including anaerobic digestion of food waste and cultivation of vegetables on digestate in a bubble-insulated greenhouse

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Pleurotus ostreatus and P. cornucopiae showed good biological efficiency, proving capable of exploiting digestate based substrates, as shown in previous studies conducted on Pleurotus spp. [ 48 , 49 , 50 , 51 , 52 ]. In particular, P. ostreatus grown on the CD exhibited a higher production of fruiting bodies (34% more) and biological efficiency (9% more) than the WS, the most used substrate for its cultivation [ 20 , 53 , 54 ].…”

Section: Discussionmentioning

confidence: 99%

Degradative Ability of Mushrooms Cultivated on Corn Silage Digestate

et al. 2020

View full text Add to dashboard Cite

The current management practice of digestate from biogas plants involves its use for land application as a fertilizer. Nevertheless, the inadequate handling of digestate may cause environmental risks due to losses of ammonia, methane and nitrous oxide. Therefore, the key goals of digestate management are to maximize its value by developing new digestate products, reducing its dependency on soil application and the consequent air pollution. The high nitrogen and lignin content in solid digestate make it a suitable substrate for edible and medicinal mushroom cultivation. To this aim, the mycelial growth rate and degradation capacity of the lignocellulosic component from corn silage digestate, undigested wheat straw and their mixture were investigated on Cyclocybe aegerita, Coprinus comatus, Morchella importuna, Pleurotus cornucopiae and Pleurotus ostreatus. The structural modification of the substrates was performed by using attenuated total reflectance-Fourier transform infrared (ATR-FTIR) spectroscopy. Preliminary in vitro results demonstrated the ability of P. ostreatus, P. cornucopiae and M. importuna to grow and decay hemicellulose and lignin of digestate. Cultivation trials were carried out on C. aegerita, P. cornucopiae and P. ostreatus. Pleurotus ostreatus showed the highest biological efficiency and fruiting body production in the presence of the digestate; moreover, P. ostreatus and P. cornucopiae were able to degrade the lignin. These results provide attractive perspectives both for more sustainable digestate management and for the improvement of mushroom cultivation efficiency.

show abstract

“…Logan and Visvanathan [22] explored the options of using digestate as a fertilizer, but also other applications: micro-algae cultivation, biofuels and bioethanol production. Kataki et al [23] researched the possibility of digestate liquid fraction utilization for oyster mushroom production. Lukehurst et al [24] created a handbook, which describes the usage of digestate from biogas plants as bio-fertilizers.…”

Section: Introductionmentioning

confidence: 99%

Anaerobic Digestate Treatment Selection Model for Biogas Plant Costs and Emissions Reduction

Đurđević

Hulenić

2020

Processes

View full text Add to dashboard Cite

Agriculture is one of the leading sectors on the global level contributing to greenhouse gas (GHG) emissions increase. With the utilization of biogas production technology within the agriculture sector, ecological benefits could be achieved, with immediate economic profit. Therefore, to retain economic profit and environmental sustainability, implementation of bioeconomy principles is of key importance. This paper examines four options of digestate treatment, which is identified as one of the highest operational cost for the biogas plant. A simple and robust model in Excel Solver was developed to determine the best solution for minimising GHG emissions and maximise profit for the biogas plant operator, through an upgrade of the plant with digestate treatment technologies. The model was implemented on a case of a Croatian biogas plant and the best solution in terms of GHG reduction and profit increase proved to be fertilizer production (Option 1), through a crystallization process of struvite within the digestate. This option obtains a significant reduction in GHG emissions compared to standard biogas production without additional upgrades (Option 4), by over 90%, and increase of profit for the biogas plant operator, which diversifies the income source and creates multiple positive impacts on the environment.

show abstract

Prospects of Utilization of Liquid Fraction of Biogas Digestate as Substrate Supplement for Mushroom Cultivation

Cited by 5 publications

References 27 publications

Efficiency of a novel “Food to waste to food” system including anaerobic digestion of food waste and cultivation of vegetables on digestate in a bubble-insulated greenhouse

Efficiency of a novel “Food to waste to food” system including anaerobic digestion of food waste and cultivation of vegetables on digestate in a bubble-insulated greenhouse

Degradative Ability of Mushrooms Cultivated on Corn Silage Digestate

Anaerobic Digestate Treatment Selection Model for Biogas Plant Costs and Emissions Reduction

Contact Info

Product

Resources

About