The Potential of Ascophyllum Nodosum to Accelerate Green Waste Composting

2021 ◽  
Author(s):  
Omar Al-Dulaimi ◽  
Mostafa E Rateb ◽  
Andrew S Hursthouse ◽  
Gary Thomson ◽  
Mohammed Yaseen
Keyword(s):  
Carbon Dioxide ◽  
Organic Matter ◽  
Greenhouse Gases ◽  
Microbial Growth ◽  
Ascophyllum Nodosum ◽  
Green Waste ◽  
Decomposition Of Organic Matter ◽  
The Uk ◽  
The Cost ◽  
Lower Carbon

Abstract Millions of tonnes of green waste are produced annually in the UK. The process of composting usually extends to more than two months as well producing greenhouse gases which affect the environment. We proposed a potential approach to use algal extract from Ascophyllum nodosum as a compost accelerator. Seaweed-based treatments offer an economical and effective biological solution which activates and stabilises the decomposition of organic matter. Reducing both the cost and time associated with widely used composting approaches. The seaweed was collected from Scottish coastline, extracted, and formulated to enhance application. Its effects on the timeline of the composting process was systematically investigated through physical, biological, and observational quantification. The emission of gases, the pH, temperature, humidity, consistency, and microbial growth of the compost were studied.Interestingly, the results showed that the compost reached a stability status within 6 weeks, less ammonia and lower carbon dioxide produced. The use of this formulation has the potential to minimise expense, reduce resources used, and lower the levels of harmful volatile organics. This approach is economically beneficial and environmentally crucial in compost formulation, the control of contamination, and reduction of greenhouse gases.

scholarly journals A CONTRIBUTION TO TEACHING CHEMISTRY WITH ENVIRONMENTAL AWARENESS USING THE COMPOSITION AND SOME REACTIONS OF DOMESTIC WASTE

2008 ◽  
Vol 05 (10) ◽  
pp. 21-25
Author(s):  
Jaqueline Keiko TANIMOTO ◽  
Karla Amâncio Pinto FIELDS
Keyword(s):  
Carbon Dioxide ◽  
Organic Matter ◽  
Greenhouse Gases ◽  
Daily Life ◽  
Domestic Waste ◽  
Teaching Chemistry ◽  
Carbon Dioxide Gas ◽  
Decomposition Of Organic Matter ◽  
Soil And Water ◽  
Emission Of Greenhouse Gases

The garbage has caused several problems within a city, is the visual pollution, in addition to contamination from the decomposition of organic matter, which generates the effluent called slurry which contaminates the soil and water in addition to the emission of greenhouse gases such as methane, sulfidric acid, ammonia and carbon dioxide gas. Reflecting on the various problems in a city that affect the environment, propose to study the composition of the garbage generated in the home, and the reactions to the formation of the same, the decomposition of organic matter and environmental impacts. Therefore, the mini course can be well used by the students, who did not have a broad view of chemistry and its applications in daily life by increasing their knowledge conceptual, in addition to awakening the motivation through the same methods that interest them.

scholarly journals Estimation of Calcium Carbonate in Soils

1909 ◽  
Vol 3 (2) ◽  
pp. 155-160
Author(s):  
F. S. Marr
Keyword(s):  
Carbon Dioxide ◽  
Organic Matter ◽  
Calcium Carbonate ◽  
Hydrochloric Acid ◽  
Atmospheric Pressure ◽  
Acid Soils ◽  
Preliminary Test ◽  
No Decomposition ◽  
Reduced Pressure ◽  
Decomposition Of Organic Matter

Boiling acid at atmospheric pressure decomposes organic matter in soil with evolution of carbon dioxide, and thus renders the results obtained for carbonate too high. Where there is a fairly large percentage of carbonate, the error introduced in this way is of no great importance, but in soils containing less than 1% of calcium carbonate and especially in acid soils, the error introduced by thus boiling with acid may be very considerable.The weaker the acid used the better so long as there is fair excess. The writer recommends for acid soils and those containing low percentages of carbonate (as can be seen by making a rough preliminary test), 2 c.c. of strong hydrochloric acid and about 100 c.c. of water: 20 grams of soil should be used when the amount of carbonate is small. The acid may be conveniently added by making up a solution containing 100 c.c. of strong hydrochloric acid per litre, and introducing 20 c.c. of this solution along with 80 c.c. of water. For most soils, 5 c.c. of strong hydrochloric acid to 100 c.c. of water will be found convenient.If possible distillation under reduced pressure should be used, as under this condition practically no decomposition of organic matter takes place, while carbonate is readily decomposed: the distillation should be continued for twenty minutes at a temperature of about 50° C.

scholarly journals Measures to Promote Olive Grove Biomass in Spain and Andalusia: An Opportunity for Economic Recovery against COVID-19

2021 ◽  
Vol 13 (20) ◽  
pp. 11318
Author(s):  
Jesús Marquina ◽  
María José Colinet ◽  
María del P. Pablo-Romero
Keyword(s):  
Energy Source ◽  
Organic Matter ◽  
Greenhouse Gases ◽  
Current Situation ◽  
Economic Recovery ◽  
Olive Grove ◽  
The Cost ◽  
Positive Effect ◽  
Tariff System ◽  
Feed In Tariff

Olive grove biomass presents an opportunity to reduce greenhouse gases and meet the sustainability objectives set by Europe. Given the relevance of this organic matter, this paper analyzes the evolution and current situation of the regulations that regulate olive grove biomass as a source of energy in Europe, in Spain and in Andalusia. Likewise, its effect on the evolution of the use of biomass in the Andalusian region, especially the olive grove, is analyzed. The analysis is novel, since there are no previous studies that reveal this type of information for the olive grove biomass sector. The results show that, as of 2005, the development of biomass for thermal and electrical uses is favorable, reaching the objectives set by the PASENER 2007–2013. However, this situation is reversed as of 2012, with the abolition of the feed-in tariff system for renewables. Besides this, the olive grove biomass sector faces other obstacles such as the cost of residue collection and the few incentives for this sector. The reorientation of the measures, in order to enhance this energy source, would generate a positive effect for the economy of the region that has been affected by COVID-19.

Neither Victors nor Victims

2017 ◽  
Author(s):  
David Whetham
Keyword(s):  
First Century ◽  
National Interests ◽  
Civil Military Relations ◽  
High Street ◽  
National Survival ◽  
The Uk ◽  
Military Relations ◽  
The Cost ◽  
Realistic Goal

Between 2007 and 2011, Wootton Bassett, a small Wiltshire town in the UK, became the focus of national attention as its residents responded to the regular repatriations of dead soldiers through its High Street. The town’s response came to symbolize the way that broader attitudes developed and changed over that period. As such, it is a fascinating case study in civil–military relations in the twenty-first century. Success may be the same as victory, but victory, at least as it has been traditionally understood, is not a realistic goal in many types of contemporary conflict. Discretionary wars—conflicts in which national survival is not an issue and even vital national interests may not be at stake—pose particular challenges for any government which does not explain why the cost being paid in blood and treasure is ‘worth it’.

scholarly journals A Comparison of Two-Stage and Traditional Co-Composting of Green Waste and Food Waste Amended with Phosphate Rock and Sawdust

2021 ◽  
Vol 13 (3) ◽  
pp. 1109
Author(s):  
Edgar Ricardo Oviedo-Ocaña ◽  
Angélica María Hernández-Gómez ◽  
Marcos Ríos ◽  
Anauribeth Portela ◽  
Viviana Sánchez-Torres ◽  
...  
Keyword(s):  
Organic Matter ◽  
Product Quality ◽  
Food Waste ◽  
Phosphate Rock ◽  
Pilot Scale ◽  
Two Stage ◽  
Green Waste ◽  
Wet Weight ◽  
Two Phases

The composting of green waste (GW) proceeds slowly due to the presence of slowly degradable compounds in that substrate. The introduction of amendments and bulking materials can improve organic matter degradation and end-product quality. However, additional strategies such as two-stage composting, can deal with the slow degradation of green waste. This paper evaluates the effect of two-stage composting on the process and end-product quality of the co-composting of green waste and food waste amended with sawdust and phosphate rock. A pilot-scale study was developed using two treatments (in triplicate each), one being a two-stage composting and the other being a traditional composting. The two treatments used the same mixture (wet weight): 46% green waste, 19% unprocessed food waste, 18% processed food waste, 13% sawdust, and 4% phosphate rock. The traditional composting observed a higher degradation rate of organic matter during the mesophilic and thermophilic phases and observed thermophilic temperatures were maintained for longer periods during these two phases compared to two-stage composting (i.e., six days). Nonetheless, during the cooling and maturation phases, the two treatments had similar behaviors with regard to temperature, pH, and electrical conductivity, and the end-products resulting from both treatments did not statistically differ. Therefore, from this study, it is concluded that other additional complementary strategies must be evaluated to further improve GW composting.

scholarly journals Sustainable healthcare – Time for ‘Green Podiatry’

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Angela Margaret Evans
Keyword(s):  
Climate Change ◽  
Carbon Dioxide ◽  
Greenhouse Gases ◽  
Health Professionals ◽  
Carbon Dioxide Emissions ◽  
Allied Health ◽  
World Health ◽  
Main Body ◽  
Allied Health Professionals ◽  
Foot Health

Abstract Background Healthcare aims to promote good health and yet demonstrably contributes to climate change, which is purported to be ‘the biggest global health threat of the 21st century’. This is happening now, with healthcare as an industry representing 4.4% of global carbon dioxide emissions. Main body Climate change promotes health deficits from many angles; however, primarily it is the use of fossil fuels which increases atmospheric carbon dioxide (also nitrous oxide, and methane). These greenhouse gases prevent the earth from cooling, resulting in the higher temperatures and rising sea levels, which then cause ‘wild weather’ patterns, including floods, storms, and droughts. Particular vulnerability is afforded to those already health compromised (older people, pregnant women, children, wider health co-morbidities) as well as populations closer to equatorial zones, which encompasses many low-and-middle-income-countries. The paradox here, is that poorer nations by spending less on healthcare, have lower carbon emissions from health-related activity, and yet will suffer most from global warming effects, with scant resources to off-set the increasing health care needs. Global recognition has forged the Paris agreement, the United Nations sustainable developments goals, and the World Health Organisation climate change action plan. It is agreed that most healthcare impact comes from consumption of energy and resources, and the production of greenhouse gases into the environment. Many professional associations of medicine and allied health professionals are advocating for their members to lead on environmental sustainability; the Australian Podiatry Association is incorporating climate change into its strategic direction. Conclusion Podiatrists, as allied health professionals, have wide community engagement, and hence, can model positive environmental practices, which may be effective in changing wider community behaviours, as occurred last century when doctors stopped smoking. As foot health consumers, our patients are increasingly likely to expect more sustainable practices and products, including ‘green footwear’ options. Green Podiatry, as a part of sustainable healthcare, directs us to be responsible energy and product consumers, and reduce our workplace emissions.

scholarly journals The riverine bioreactor: An integrative perspective on biological decomposition of organic matter across riverine habitats

2021 ◽  
Vol 772 ◽  
pp. 145494
Author(s):  
Ignacio Peralta-Maraver ◽  
Rachel Stubbington ◽  
Shai Arnon ◽  
Pavel Kratina ◽  
Stefan Krause ◽  
...  
Keyword(s):  
Organic Matter ◽  
Decomposition Of Organic Matter ◽  
Riverine Habitats ◽  
Biological Decomposition

scholarly journals Syngenetic rapid growth of ellipsoidal silica concretions with bitumen cores

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Hidekazu Yoshida ◽  
Ryusei Kuma ◽  
Hitoshi Hasegawa ◽  
Nagayoshi Katsuta ◽  
Sin-iti Sirono ◽  
...  
Keyword(s):  
Organic Matter ◽  
Early Diagenesis ◽  
Ph Change ◽  
Carbon Preference Index ◽  
Diffusion Growth ◽  
Silica Precipitation ◽  
Precipitated Silica ◽  
Preference Index ◽  
Decomposition Of Organic Matter ◽  
Growth Diagram

AbstractIsolated silica concretions in calcareous sediments have unique shapes and distinct sharp boundaries and are considered to form by diagenesis of biogenic siliceous grains. However, the details and rates of syngenetic formation of these spherical concretions are still not fully clear. Here we present a model for concretion growth by diffusion, with chemical buffering involving decomposition of organic matter leading to a pH change in the pore-water and preservation of residual bitumen cores in the concretions. The model is compatible with some pervasive silica precipitation. Based on the observed elemental distributions, C, N, S, bulk carbon isotope and carbon preference index (CPI) measurements of the silica-enriched concretions, bitumen cores and surrounding calcareous rocks, the rate of diffusive concretion growth during early diagenesis is shown using a diffusion-growth diagram. This approach reveals that ellipsoidal SiO2 concretions with a diameter of a few cm formed rapidly and the precipitated silica preserved the bitumen cores. Our work provides a generalized chemical buffering model involving organic matter that can explain the rapid syngenetic growth of other types of silica accumulation in calcareous sediments.

scholarly journals ‘Rising demand and decreasing resources’: Theorising the ‘cost of austerity’ as a barrier to social worker discretion

2021 ◽  
pp. 1-18
Author(s):  
CIARÁN MURPHY
Keyword(s):  
Social Worker ◽  
Child Protection ◽  
Child Protection Services ◽  
Radical Reform ◽  
Critical Realist ◽  
Documentary Analysis ◽  
Effective System ◽  
The Individual ◽  
The Uk ◽  
The Cost

Abstract The Munro Review of Child Protection asserted that the English child protection system had become overly ‘defensive’, ‘bureaucratised’ and ‘standardised’, meaning that social workers were not employing their discretion in the interests of the individual child. This paper reports on the results of an ethnographic case study of one of England’s statutory child protection teams. The research sought to explore the extent of social worker discretion relative to Munro’s call for ‘radical reform’ and a move towards a more ‘child-centred’ system. Employing an iterative mixed methods design – encompassing documentary analysis, observation, focus group, questionnaire, interview and ‘Critical Realist Grounded Theory’ – the study positioned the UK Government’s prolonged policy of ‘austerity’ as a barrier to social worker discretion. This was because the policy was seen to be contributing to an increased demand for child protection services; and a related sense amongst practitioners that they were afforded insufficient time with the child to garner the requisite knowledge, necessary for discretionary behaviour. Ultimately, despite evidence of progress relative to assertions that social worker discretion had been eroded, the paper concludes that there may still be ‘more to do’ if we are to achieve the ‘child-centred’ and ‘effective’ system that Munro advocated.

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