Effects of digestate co-composting on curing phase of composting. (September 2022)
- Record Type:
- Journal Article
- Title:
- Effects of digestate co-composting on curing phase of composting. (September 2022)
- Main Title:
- Effects of digestate co-composting on curing phase of composting
- Authors:
- Arab, Golnaz
Razaviarani, Vahid
McCartney, Daryl - Abstract:
- Abstract: The effects of adding polished digestate (8-day aerated digestate) into the curing phase of composting was investigated. The polished digestate was mixed with a 30-day composted OFMSW, introduced to eight composters with different mixing ratios and monitored for 100 days. Monitored parameters were temperature, mass changes, total solids, organic matter, pH, and electrical conductivity. Stability and maturity endpoints were also quantified by running respirometry, C:N ratio, NH4 :NO3 ratio, and Solvita® tests. The results showed that co-composting of polished digestate and 30-day composted OFMSW did not notably improve the overall composting performance and it decreased when the digestate portion increased. This could be due to the excess aeration of the digestate and/or an unsuitable inoculation time. Over-aeration could result in the volatilization of ammonia and loss of nitrogen. There are two speculations: first, the inoculum consortia might be outcompeted by the indigenous microorganisms. Second, substrate could become a limiting factor. Graphical abstract: Unlabelled Image Highlights: Co-composting of polished digestate and composted OFMSW was investigated. Overall co-composting performance did not notably improve. Over-aeration of digestate resulted in the volatilization of ammonia. Unsuitable inoculation time could be a reason for not detecting improvement.
- Is Part Of:
- Bioresource technology reports. Volume 19(2022)
- Journal:
- Bioresource technology reports
- Issue:
- Volume 19(2022)
- Issue Display:
- Volume 19, Issue 2022 (2022)
- Year:
- 2022
- Volume:
- 19
- Issue:
- 2022
- Issue Sort Value:
- 2022-0019-2022-0000
- Page Start:
- Page End:
- Publication Date:
- 2022-09
- Subjects:
- Co-composting -- Anaerobic digestion -- Digestate -- Organic fraction of municipal solid waste -- Inoculation
Biomass energy -- Periodicals
Biotransformation (Metabolism) -- Periodicals
Agricultural wastes -- Periodicals
Factory and trade waste -- Periodicals
Organic wastes -- Periodicals
Waste products as fuel -- Periodicals
Waste products as fuel
Organic wastes
Factory and trade waste
Biotransformation (Metabolism)
Biomass energy
Agricultural wastes
Periodicals
Electronic journals
662.88 - Journal URLs:
- https://www.sciencedirect.com/journal/bioresource-technology-reports ↗
http://www.sciencedirect.com/ ↗ - DOI:
- 10.1016/j.biteb.2022.101121 ↗
- Languages:
- English
- ISSNs:
- 2589-014X
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 23350.xml