Search results for "jätehuolto"
showing 10 items of 11 documents
Into the world of e-waste: mobility among e-scrappers in Nigeria
2017
AbstractIn the management of e-waste, mobility of e-scrappers plays a pivotal role, especially in e-waste acquisition and sales of extracted materials. This research examines the relationship between e-scrappers and the locations of their work by analysing the influence of environmental and social factors on their mobility behaviour in Nigeria. A qualitative analysis of video material collected from 29 male e-scrappers in Nigeria between 2014 and 2015 reveals that e-waste has inherent properties that intermittently mobilise e-scrappers to search for recyclable and valuable electronic trash. Applying the new mobilities paradigm and the new materialism theory, we present that e-scrappers’ mob…
Effects of waste treatment technique and quality of waste on bioaerosols in Finnish waste treatment plants
2004
Outi Tolvanen selvitti tutkimuksessaan mikrobi-, endotoksiini- ja pölypitoisuuksia suomalaisilla jätteenkäsittelylaitoksilla. Tolvanen tutki, onko jätteiden tehostunut syntypistelajittelu ja jätteiden käsittely suljetuissa laitoksissa vähentänyt bioaerosolien ja pölyn aiheuttamia työhygieenisiä ongelmia. Kohonneiden mikrobipitoisuuksien on aikaisemmissa tutkimuksissa havaittu aiheuttavan jätteitä työssään käsitteleville henkilöille erilaisia oireita, kuten pahoinvointia, päänsärkyä, kuumeilua sekä allergiaa ja astmaa. The last fifteen years have seen immense changes in waste treatment in Finland. The number of landfill sites has been reduced and new waste treatment plants have been construc…
Feasibility study on the biogas production from organic wastes generated at the University of Jyväskylä
2013
Tutkielman tarkoituksena on tehdä kannattavuusanalyysi Jyväskylän yliopiston tuottamien biohajoavien jätteiden mädätykselle, joka tuottaisi biokaasua. Tavoitteena on arvioida Jyväskylän yliopiston jätehuollon tämän hetkistä tilannetta, suorittaa kannattavuusanalyysi biokaasulaitokselle ja tutkia eri vaihtoehtojen energiataseita, kasvihuonekaasupäästöjä ja mahdollisuutta vähentää päästöjä. Perustuen orgaanisten jätteiden kemiallisiin koostumuksiin ja metaanintuottopotentiaaleihin biokaasulaitos mallinnettiin erilaisilla vaihtoehdoilla. Ensimmäisessä vaihtoehdossa ainoa jätelajike on biojäte sekä yliopistolta että Kortepohjan ylioppilaskylästä. Toisessa vaihtoehdossa lisätään yliopistolla muo…
Moving forward sustainably : material and social conditions of electronic waste management in Nigeria
2018
This dissertation focuses on understanding the social material interaction between e-waste and e-scrappers for sustainable management of e-waste. Previous studies mainly concentrate on the detrimental environmental impact of e-scrappers activities, the economic and political influences of e-waste on the e-scrappers, the material flow of e-waste and the exportation of valuable e-waste extracts from highly industrialized countries to less industrialized countries. The aim of the dissertation is therefore to extend the scope of the previous studies by investigating the social material interaction between e-scrappers and e-waste. To achieve this aim, this study examines the following research q…
Assessing greenhouse gas emission from waste management in EU countries
2012
Waste management plays an important role in reducing greenhouse gas (GHG) emission. The purpose of this study is to explore the economic, social and envi-ronmental factors that could significantly affect GHG emission from waste management in European Union countries. Based on the cross-section data in 2008 among European Union countries, three components (significant factors) were extracted from 12 possible factors by the principal component analysis. Also, the relation between GHG emission from waste sector and significant fac-tors was quantified through the multiple linear regression. On one hand, the results demonstrated that 42.4% of the GHG emission from waste sector could be explained…
A technological approach towards integrated solid waste management in developing countries
2017
This research is grounded in the planning concept of Integrated Solid Waste Management (ISWM). ISWM was developed to promote sustainability in the waste management for developing countries. Waste managers and policy makers in developing countries have been adopting the principles of ISWM into their waste strategies for several decades. But despite their many efforts, still important problems remain, as is the case of low collection coverage, lack of proper treatment of the different waste types, high dependency on final disposal sites and even in some cities uncontrolled dumping is still accepted as the only way to handle the waste. For that reason, waste management in developing countries …
Kemiantehtaan jätehuoltosuunnitelman päivittäminen ja orgaanisen karboksimetyyliselluloosajätteen biologinen käsittely
2006
Biotic oxidation of methane in landfills in boreal climatic conditions
2010
This study focused on the biotic oxidation of methane in landfill covers as a technology for reducing greenhouse gas emissions from landfills, particularly those located in the boreal climatic zone. First, methane oxidation was studied in laboratory batch assays in a landfill cover soil consisting of a composted mixture of sewage sludge and chemical sludge which had been installed on the landfill surface 4-5 years earlier. Second, methane oxidation was studied using mechanically-biologically treated municipal solid waste (MBT residual) as a material for methane-oxidizing landfill covers both in continuously methane-sparged laboratory columns and in an outdoor pilot lysimeter. Finally, meth…
Landfill operation and waste management procedures in the reduction of methane and leachate pollutant emissions from municipal solid waste landfills
2002
The objective of the present research was to find ways of minimising emissions from municipal solid waste (MSW) landfills by means of laboratory experiments.