Evaluation of Harmful Factors of Municipal Solid Waste in Order to Be Valorized in Industrial Application †
by
Adriana Moanță
1, 
Doru Vladimir Pușcașu
1,
Gherghina Ciortan
1,
Cristina Andreea Vijan
1,
Marina Martin
1,
Jenica Paceagiu
1,*,
Maria Paraschiv
2,
Mălina Prisecaru
2 and
Alina Elena Pop
2 1
CEPROCIM SA, 6 Bdv. Preciziei, 062203 Bucharest, Romania
2
Faculty of Mechanical Engineering, University Politehnica of Bucharest, 313 Spl. Independentei, 060042 Bucharest, Romania
*
Author to whom correspondence should be addressed.
†
Presented at the 15th International Symposium “Priorities of Chemistry for a Sustainable Development” PRIOCHEM, Bucharest, Romania, 30th October–1st November 2019.
Proceedings 2019, 29(1), 123; https://doi.org/10.3390/proceedings2019029123
Published: 18 October 2019
(This article belongs to the Proceedings of Priorities of Chemistry for a Sustainable Development-PRIOCHEM)
Municipal waste disposal is an issue that is important to the management of any urban area. Cities without a functioning waste-disposal plan face the risk of diseases running rampant and economic activity grinding to a halt [1]. The safety and acceptability of many widely-used solid waste management practices are a serious concern from a public health perspective. The quantity and composition of municipal solid waste (MSW) varies from place to place, and bears a rather consistent correlation with the average standard of living. Waste recovery is one of the objectives of the national strategy. One method of recovery is the valorization of waste to produce fuel, while others suggest its incorporation into building materials [2,3,4].
The paper presents the chemical analysis and heavy metal composition of solid municipal waste for quantification of harmful compounds. Samples were obtained from a historical Romanian municipal solid waste disposal site.
Samples collected from 30 points were characterized from a heavy metal and corrosive agent (Cl –) content point of view. Specifically, analyses for determination of the calorific value, ash content and oxidic composition were carried out. In addition, determination of the heavy metal content (mercury, cadmium, cobalt, chromium, copper, manganese, nickel, lead, styrene, thallium, vanadium and zinc) was performed using graphite oven atomic absorption spectrometry, and a NovAA 400 hydride generator. To determine the calorific value of the waste, an IKA WERKE-type calorimetric pump was used. The chlorine content (considered a corrosive agent) and oxide composition of the ash was determined by wet chemistry.
The results obtained showed that:
- the content of heavy metals had a wide range of variation, with different domains depending on the type of element
- the minimum content of Cl determined was 0.68% and the maximum value recorded was 2.01%
- the limits of variation for the lower calorific value were 3281–5790 kcal/kg, while the higher calorific value varied in the range 590–5880 kcal/kg
- in the case of ash, there was quite a wide variation in the limits of its oxide chemical composition
Based on the complex characterization of the collected waste samples, and considering the wide range of variation in the values determined for each characteristic presented, it can be concluded that the deposited material was not homogeneous.
Acknowledgments
This work was financially supported by the Romanian competitiveness operational program through the knowledge transfer project CleanTech – POC - P40_308, SMIS:105958 (http://cleantech.pub.ro/).
References
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MDPI and ACS Style
Moanță, A.; Pușcașu, D.V.; Ciortan, G.; Vijan, C.A.; Martin, M.; Paceagiu, J.; Paraschiv, M.; Prisecaru, M.; Pop, A.E. Evaluation of Harmful Factors of Municipal Solid Waste in Order to Be Valorized in Industrial Application. Proceedings 2019, 29, 123. https://doi.org/10.3390/proceedings2019029123
AMA Style
Moanță A, Pușcașu DV, Ciortan G, Vijan CA, Martin M, Paceagiu J, Paraschiv M, Prisecaru M, Pop AE. Evaluation of Harmful Factors of Municipal Solid Waste in Order to Be Valorized in Industrial Application. Proceedings. 2019; 29(1):123. https://doi.org/10.3390/proceedings2019029123
Chicago/Turabian StyleMoanță, Adriana, Doru Vladimir Pușcașu, Gherghina Ciortan, Cristina Andreea Vijan, Marina Martin, Jenica Paceagiu, Maria Paraschiv, Mălina Prisecaru, and Alina Elena Pop. 2019. "Evaluation of Harmful Factors of Municipal Solid Waste in Order to Be Valorized in Industrial Application" Proceedings 29, no. 1: 123. https://doi.org/10.3390/proceedings2019029123
