DETERMINATION OF CONSTRUCTION DEMOLITION WASTES AFTER KAHRAMANMARAS EARTHQUAKE AND EVALUATION OF WASTES: THE CASE OF HATAY PROVINCE
9TH INTERNATIONAL "BAŞKENT" CONGRESS ON PHYSICAL, ENGINEERING, AND APPLIED SCIENCES, Ankara, Türkiye, 20 - 23 Mayıs 2023, ss.143-150, (Tam Metin Bildiri)
- Yayın Türü: Bildiri / Tam Metin Bildiri
- Basıldığı Şehir: Ankara
- Basıldığı Ülke: Türkiye
- Sayfa Sayıları: ss.143-150
- İstanbul Üniversitesi-Cerrahpaşa Adresli: Evet
Özet
In the
periods when there was no rapid population growth in cities, generation of
solid wastes were not seen as a significant problem, due to their low of
generation rates, and lesser waste disposal site need comparing bigger cities.
However, due to the rapid industrialization and urbanization that took place
especially after the industrial revolution, there has been an increase in both
the amount of waste and the content and diversity of the wastes generated in
the cities. Accordingly, the inadequacies in the facilities and areas used for
the storage and disposal of these large amounts of waste have made the control
and management of solid wastes one of the biggest problems of modern societies.
The difficulties experienced in the management of solid wastes bring along many
environmental problems. Today, although the amount of solid wastes vary
depending on the development level of the countries, population, construction
activities, materials used in construction and traditions, construction and
demolition wastes (CDW) are the wastes that have a large share among these
wastes. There are various difficulties in the management of these wastes, such
as insufficient storage space, high land and transportation costs, along with
the environmental risks they may cause. Especially in the management of
construction and demolition wastes arising from structures destroyed/to be
demolished as a result of disasters such as earthquakes, the preparation of
plans created according to various scenarios will contribute to reducing the
environmental risks caused by these wastes. The presence of recyclable/reusable
materials such as brick, sand, wood, glass, plastic, and metal among these
wastes shows that these wastes have economic value. Therefore, in the
management of these wastes, it is important to prepare plans such as disposal
and recovery / use, which are created according to different scenarios, and to
reveal cost analyzes. In this study, the approximate mass and volumetric
amounts of construction demolition wastes generated in Hatay province due to
the devastating earthquake that occurred in Kahramanmaraş on February 6, 2023,
were calculated, and the amounts of scrap iron waste (ISW) and mineral fraction
waste (MFW) that may occur in these wastes were determined. The transportation
and recovery costs that may occur for the use of raw materials in the ISW and
MFW recovery/cement plants have been calculated. According to the results
obtained in the study, the amounts of construction and demolition waste were
found to be approximately 52 million tons and 31 million m3 by mass
and volume, respectively. However, ISW and MFW amounts were calculated as 378
thousand tons and 30.75 million tons, respectively. The transportation costs
for the recycling and utilization of these wastes as raw materials have been
determined as approximately 790.452-€ and 64.319.827-€. In addition, according
to the results obtained from the study, approximately 47.70% in mineral
fractions by using these wastes as raw materials; it has been determined that
it can provide 99.42% economic gain in scrap iron.