Ash in composting of source-separated catering waste

Koivula, Niina; Räikkönen, Tarja; Urpilainen, Sari T.; Ranta, Jussi; Hänninen, Kari

doi:10.1016/j.biortech.2003.10.025

Cited by 51 publications

(28 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…According to Koivula et al (2004), the addition of up to 20% ash to kitchen wastes resulted in an acceptable composting process. Nonetheless, it has been reported that the amendment of biowastes with 8-9% ash was more appropriate for an optimal static-pile composting process than amendment with 15-16% ash (Fernández-Delgado Juárez et al, 2015;Kuba et al, 2008).…”

Section: Discussionmentioning

confidence: 98%

“…Composting amendment studies conducted by Kurola et al (2011) found that the admixture of low doses of wood ash (4% and 8%) to biowaste resulted in an increase in composting temperature and pH, and stimulated mineralisation in both pilot and large-scale systems. Koivula et al (2004) also reported a reduction in H 2 S evolution following 20% ash amendment in biowaste composting. Studies using active lime (Ca(OH) 2 ) as a compost amendment for reducing short chain organic acids reported that 5% addition to compost stimulated a pH rise without hampering microbial activity (Bergersen et al, 2009), an effect that could also be expected by using ash.…”

Section: Introductionmentioning

confidence: 91%

See 1 more Smart Citation

Co-composting of biowaste and wood ash, influence on a microbially driven-process

et al. 2015

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 91%

Co-composting of biowaste and wood ash, influence on a microbially driven-process

et al. 2015

View full text Add to dashboard Cite

“…A Fig. 1 Temperature profiles of the piles during composting common disadvantage of compost as fertilizer is weakening of the water intake ability of plants due to osmotic effect from high salt concentrations (Koivula et al 2004). EC about 4 dS/m or higher in composts will adversely influence plant growth, e.g., low germination rate, withering, etc.…”

Section: Resultsmentioning

confidence: 99%

Reduction of bioavailability and leachability of heavy metals during agitated pile composting of Salvinia natans weed of Loktak lake

Singh¹,

Pankaj

Kalamdhad

2015

Int J Recycl Org Waste Agricult

View full text Add to dashboard Cite

Purpose Composting of harvested Salvinia natans weed of Loktak lake of Manipur, India can protect the precious lake from the unwanted growth of the weeds but there is a need to assess the total amount and bioavailable forms of heavy metals and minerals of the final compost before application as a soil conditioner. Methods Studies were conducted on the transformations of the physico-chemical parameters and the total amount, bioavailable and leachable forms of heavy metals and minerals during agitated pile composting of S. natans with rice husk and cattle manure in five different combinations [trial 1 (5 S. natans: 4 cattle manure: 1 rice husk), trial 2 (6 S. natans: 3 cattle manure: 1 rice husk), trial 3 (7 S. natans: 2 cattle manure: 1 rice husk), trial 4 (8 S. natans: 1 cattle manure: 1 rice husk) and trial 5 (10 S. natans: 0 cattle manure: 0 rice husk)]. Results The highest temperature (52.2°C) was monitored in trial 2 having 30 % cattle manure during the process. Highest reduction of moisture content and volatile solid in trial 2 corroborated the temperature profile. Total concentrations of heavy metals (Zn, Cu, Mn, Fe, Ni, Pb, Cd and Cr), total concentration of nutrients (Na, K, Ca, and Mg) and the water-soluble forms of the nutrients were enhanced significantly. The water-soluble, plant-available and leachable metals decreased favorably with maximum reduction observed mostly in trial 2. The study also revealed that the total concentrations of Zn (211-254 mg/ kg), Ni (310-345 mg/kg) and Pb (805-891 mg/kg) of the final composts were higher than that of Cr (140-207 mg/ kg) but the water-soluble forms of Zn (3.6-4.7 % of total Zn), Ni (NIL) and Pb (0.7-1.0 % of total Pb) were lower than that of .3 % of total Cr) indicating that Cr in the composts had higher toxicity potential. The leachable heavy metals were within the threshold limits prescribed for agricultural application. Conclusions Composting of S. natans biomass with appropriate proportion of cattle manure reduced the bioavailable and leachable forms of the heavy metals in the biomass.

show abstract

“…The composting processes using municipal garbage and plants have been mentioned by many authors [35,[40][41][42][43][44]. Municipal sewage sludge can be a source of valuable fertilizer, due to its high content of organics, nitrogen, Fig.…”

Section: Solutions For Conversion Of Organic Solid Wastementioning

confidence: 99%

An integrated ecosystem incorporating renewable energy leading to pollution reduction for sustainable development of craft villages in rural area: a case study at sedge mats village in Mekong Delta, Vietnam

Tran

et al. 2016

Energ Sustain Soc

View full text Add to dashboard Cite

Background: The sedge mats (dyeing, weaving processes, and small-scale livestock farm at the same place) craft villages in the Mekong Delta (Vietnam) are the most popular craft villages in Vietnam, especially in the Mekong Delta area. These craft villages generate typical emissions such as exhaust gas from burning fuel, wastewater from the sedge mats dyeing and weaving process, wastewater from livestock farm, and solid waste. Methods: In this study, an ecological system, so-called VICRAIZES (Vietnam Craft villages Agro-based Industrial Zero Emission System), has been developed with the purpose to decrease pollution and enhance resource efficiency at those craft villages. The proposed ecosystem focused on measures such as (1) biogas tank (using residue pieces of solid sedge mats from weaving processing) supplied gas for burning the dyeing tank, (2) wastewater treatment system combining three components: innovative septic tank having upward flow thin baffles, anaerobic filter compartment, and bio-pond, and (3) composting area. The system was applied for a number of household craft villages in Dong Thap Province, Vietnam. Results: The results of system demonstration show significant emission decreases: 93 % greenhouse gas (CO 2 and CH 4 ), 97 % BOD 5 in wastewater, around 30 kg/day biodegradable garbage are composted and used as organic fertilizers at the household needs (which increase family income of around 115 million VND/year), low initial investment and operating cost, simple operating procedure, etc., which are favorable and applicable at the low income sedge mats dyeing and weaving craft villages in the Mekong Delta area, Vietnam, and probably at other developing countries. Conclusions: The VICRAIZES system implementation shows remarkable benefits/advantages on environmental, economic, and technical aspects giving real chances for more comprehensive application at similar craft villages in Vietnam and possibly in other developing countries.

show abstract

Ash in composting of source-separated catering waste

Cited by 51 publications

References 5 publications

Co-composting of biowaste and wood ash, influence on a microbially driven-process

Co-composting of biowaste and wood ash, influence on a microbially driven-process

Reduction of bioavailability and leachability of heavy metals during agitated pile composting of Salvinia natans weed of Loktak lake

An integrated ecosystem incorporating renewable energy leading to pollution reduction for sustainable development of craft villages in rural area: a case study at sedge mats village in Mekong Delta, Vietnam

Contact Info

Product

Resources

About