Evaluation of Heavy Metals Content in Simulated Solid Waste Food Compost

AL-Saedi, Zainab Zamil; Ibrahim, Jathwa Abdul Kareem

doi:10.31026/j.eng.2019.09.6

Cited by 3 publications

(2 citation statements)

References 4 publications

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“…Based on the obtained results for the heavy metal content of composts (Figure 5), it can be concluded that the chemical analysis of heavy metals showed that Cd was higher in MSW and its mixtures in the beginning; after the composting process, the Cd decreased significantly, while it was lower in compost bins 1, 2 and 3 mixed with animal or poultry manure. However, the concentration of Cd largely decreased to lower levels after maturation, while the concentration of heavy metal pb was increased in all composting bins after maturation [41].…”

Section: The Effect Of Heavy Metals On Composting Characteristicsmentioning

confidence: 91%

Evaluation of Physio-Chemical Characteristics of Bio Fertilizer Produced from Organic Solid Waste Using Composting Bins

2022

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Background: The possibility of converting the organic fraction of municipal solid waste to mature compost using the composting bin method was studied. Nine distinct treatments were created by combining municipal solid waste (MSW) with animal waste (3:1, 2:1), poultry manure (3:1, 2:1), mixed waste (2:1:1), agricultural waste (dry leaves), biocont (Trichoderm hazarium), and humic acid. Weekly monitoring of temperature, pH, EC, organic matter (OM percent), and the C/N ratio was performed, and macronutrients (N, P, K) were measured. Trace elements, including heavy metals (Cd and Pb), were tested in the first and final weeks of maturity. Results: Temperatures in the first days of composting reached the thermophilic phase in MSW compost with animal and poultry manure between 55–60 °C, pH and EC (mS/cm) increased during the composting period in most composting bin treatments. Overall, organic matter (OM percent) and the C/N ratio decreased (10.27 to 18.9) as result of microbial activity during composting. Organic matter loss percent was less in treatments containing additives (biocont l humic acid) as well agricultural waste treatment. Composting bin treatments with animals and poultry showed higher K and P at the mature stage with an increase in micronutrients. Finally heavy metals were (2.25–4.20) mg/kg and (139–202) mg/kg for Cd and Pb respectively at maturation stage. Conclusion: Therefore, the results suggested that MSW could be composted in the compost bin method with animal and poultry manure. The physio-chemical parameters pH, Ec and C/N were within the acceptable standards. Heavy metals and micronutrients were under the limits of the USA standards. The significance of this study is that the compost bin may be used as a quick check to guarantee that the outputs of long-term public projects fulfill general sustainability requirements, increase ecosystem services, and mitigate the effect of municipal waste disposal on climate change particularly the hot climate regions.

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Section: The Effect Of Heavy Metals On Composting Characteristicsmentioning

confidence: 91%

Evaluation of Physio-Chemical Characteristics of Bio Fertilizer Produced from Organic Solid Waste Using Composting Bins

2022

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“…Heavy metals do not degrade throughout the composting process and frequently become more concentrated due to the continuous loss of carbon and water into carbon dioxide and water vapour throughout the composting process. Metal concentrations that were measured in segregated food waste were related to the natural contents of metals in food and plant material wastes [17].…”

Section: Heavy Metalsmentioning

confidence: 99%

Landscape Waste Composting with the Aid of Effective Microorganisms using Mechanical Crusher Machine

Muhamad¹,

Rahman²,

Hamidon³

et al. 2020

JAITA

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Malaysia is facing an uncontrolled increase in municipal solid waste generation due to population growth and nation development. Part of the waste that is disposed to landfill is landscape waste. The disposal of these waste can be reduced by composting method. In this study, the compost is produced by using a mechanical crusher machine for 1 hour and stored in a bin for weeks. The form compost had temperature and pH in the acceptable range for fertilizer but low moisture content.

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The zero-waste design for the municipal solid waste management in Baghdad city

Haleem¹

2021

IOP Conf. Ser.: Earth Environ. Sci.

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Zero-waste is ideological for facing waste difficulties in our community. The purpose is to start developing and performed in different areas including waste management and treatment, mining, construction, and city development. The zero-waste idea has been welcomed by policymakers because it animates sustainable production and consumption, best recycling, and resource improvement. Experts in waste management systems, however, understand and implement it in different ways. The present study aims to imagine a zero-waste strategy within Baghdad city based on the available data and published in the literature to get an optimum resource recovery from generated waste, by assuming a recycling factory working at a capacity of 7500 tons/day, in three basic units (composting unit 5000 ton/day, composting unit 1500, ton/day, and inert materials unit 1000 ton/day), theses expected capacities of each unit built on Baghdad municipality percentages of each type of waste (57% organic materials, 23% energy sources materials, and 20% for inert materials such as construction waste). From the findings can be concluded that Baghdad city can reach the desired goal (zero-waste) by recycling its waste and implementing a comprehensive management system that includes education, sustainable production, and consumption. Very few investigations have been observed in the fields of zero-waste design, this study shows that the field of zero-waste knowledge is various, and a zero-waste concept is continually growing through different strategies, plans, procedures, and policies. The judgments of this study propose that zero-waste programs are applied in many countries without any holistic zero-waste strategy. The study indicates that countries might be ready to reach zero-waste purposes of explaining general zero-waste plans and by uniting and promoting zero-waste actions (in cities and manufacturers).

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Evaluation of Heavy Metals Content in Simulated Solid Waste Food Compost

Cited by 3 publications

References 4 publications

Evaluation of Physio-Chemical Characteristics of Bio Fertilizer Produced from Organic Solid Waste Using Composting Bins

Evaluation of Physio-Chemical Characteristics of Bio Fertilizer Produced from Organic Solid Waste Using Composting Bins

Landscape Waste Composting with the Aid of Effective Microorganisms using Mechanical Crusher Machine

The zero-waste design for the municipal solid waste management in Baghdad city

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