scholarly journals The Cost-estimation of Mechanical Pre-treatment Lines of Municipal Solid Waste in Latvia

2014 ◽  
Vol 32 (1) ◽  
pp. 17-28 ◽  
Author(s):  
Dace Āriņa ◽  
Kaspars Kļavenieks ◽  
Juris Burlakovs

Abstract Production of refuse derived fuel from municipal solid waste in future shall play a strategic role in an integrated waste management system. The amount of landfilled biodegradable materials thus will be diminished according to provisions of the 1999 Waste Landfill Directive. The aim of this article is to evaluate cost effectiveness based on cost evaluation of the different complication of the waste pre-treatment equipment complectation and based on regenerable waste quantities in Latvia. The comparison of cost estimates is done in 3 scenarios considering potential waste quantities in Latvia: Scenario I - planned annual waste quantity is 20 kT; Scenario II - 40 kT and Scenario III - 160 kT. An increase in amount of waste and processing capacity means the decrease in costs of mechanical pre-treatment of 1 ton of waste. Thus, costs of mechanical sorting line under different scenarios with capacities of 10 t h-1, 20 t h-1 and 80 t h-1 are EUR 32 per t, EUR 24 per t and EUR 15 per t, respectively. Most feasible cost for a set of mechanical pre-treatment equipment for the capacity of 10 t h-1 is EUR 32 per t by using rotating drum screener with the following manual sorting. Mechanical pre-treatment equipment of unsorted municipal waste is economically nonbeneficial, when the use of fine (biologically degradable) fraction is not possible. As the sorting of biodegradable kitchen waste is not developed under the current waste management system in Latvia, the lines for mechanical pre-treatment of household waste would be better to install in landfills.

2008 ◽  
Vol 3 (1) ◽  
pp. 9
Author(s):  
Catur Puspawati ◽  
Besral Besral

Kampung Rawajati di Jakarta yang menerapkan sistem pengelolaan sampah berbasis masyarakat merupakan alternatif upaya mengatasi sampah rumah tangga. Penelitian ini bertujuan mengetahui pengaruh sistem tersebut terhadap penurunan berat sampah rumah tangga. Dengan desain studi potong lintang, penelitian ini dilakukan pada sampel 175 ibu rumah tangga yang dipilih secara acak. Hasil penelitian ini menunjukan bahwa pengelolaan sampah berbasis masyarakat dapat menurunkan berat sampah sebesar 28,3%. Analisis regresi linier ganda memperlihatkan bahwa kegiatan pengelolaan yang berpengaruh terhadap penurunan berat sampah adalah kegiatan reuse, daur ulang, dan pembuatan kompos (nilai-p < 0,05). Pembuatan kompos merupakan variabel yang berkontribusi terhadap penurunan berat sampah 657,3 gram setelah dikontrol variabel perancu. Penurunan berat sampah ditemukan lebih besar pada rumah tangga yang mendapat pelatihan. Tidak ada perbedaan penurunan berat sampah menurut jumlah anggota keluarga, penghasilan rumah tangga, dan pengetahuan ibu. Disarankan agar Pemerintah DKI Jakarta dapat melakukan replikasi model pengelolaan sampah berbasis masyarakat kepada wilayah lainnya, dengan memberikan pelatihan pengelolaan sampah kepada masyarakat.Kata kunci : Pengelolaan sampah berbasis masyarakat, berat sampah, pengolahan dan minimasi sampahAbstractKampung Rawajati in Jakarta applies community-based solid waste management system as an alternative way to overcome household waste problem. The objective of the research is to assess the effect of community-based solid waste management on reduction of household waste weight. This study has crosssectional study design and was conducted on 175 housewife as respondent who were selected randomly. The data was collected by interview using structured questionnaire and weighing of household waste. The result shows that the community-based solid waste management can reduce 28.3% of household waste weight (weight before: 1.845 gram/house/day and after: 1.324 gram/house/day). Multiple linear regression analysis shows that variables affecting thereduction of solid waste including re-using activity, recycling, and composting (p-value <0.05). Composting represents the biggest effect to reduction (657.26 gram) after controlled by potential confounders. The reduction was higher among household with waste training and number of trained household member. It was found that number of family member, family income, and mother knowledge are not significant. It was recommended to the Government of DKI Jakarta to replicate this community-based waste management system to other regions by providing training facilities on solid waste management.Keywords: Community-based on solid waste management, waste weight, processing and minimizing of solid waste


2020 ◽  
Vol 3 (11) ◽  
pp. 4-8
Author(s):  
A. M. GUBERNATOROV ◽  

The article deals with the management of municipal solid waste in accordance with the reform. It is proved that the waste processing industry needs fundamental changes. It is proved that the effectiveness of the reform of the municipal solid waste management system can be assessed using an optimal financing model based on a scenario approach.


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