scholarly journals Analyze of Leachate Composition in the Dumpsites of East-Latgale Region

2006 ◽  
Vol 1 ◽  
pp. 276
Author(s):  
E. Teirumnieks ◽  
Ē. Abricka
Keyword(s):  
Drinking Water ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Human Health ◽  
Chemical Content ◽  
Leachate Composition ◽  
Pollute Groundwater

There are are 28 working or closed but not recultivated municipal solid waste dumpsites in East-Latgale now. A number of these dumpsites are situated near lakes, rivers, in old mineral quarries etc [3, 6]. All these dumpsites pollute groundwater, soil and present danger for human health. One of the dangerous factors is leachate which is generated in these dumpsites and which pollutes groundwate, soil and drinking water. The analysis of leachate sample chemical content in the biggest East-Latgale dumpsites “Ritini”, “Zvirgzdene”, “Zelceva” and “Mostovaja” has been done in 2002. The content of leachate depends on content of waste, dumpsite management etc. The most polluted leachate is in the biggest dumpsites of region – “Ritini” and “Zvirgzdene”. These are city dumpsites (Rezekne and Ludza). Significantly less polluted leachate is found in the dumpsites “Zelceva” and “Mostovaja”. This is valid for all analyzed parameters – COD, conductivity, Ntot., NH4 + and Cl.

scholarly journals Determination of the Least Impactful Municipal Solid Waste Management Option in Harare, Zimbabwe

Processes ◽  
2019 ◽  
Vol 7 (11) ◽  
pp. 785
Author(s):  
Trust Nhubu ◽  
Edison Muzenda
Keyword(s):  
Global Warming ◽  
Life Cycle ◽  
Waste Management ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Human Health ◽  
Solid Waste Management ◽  
Municipal Solid Waste Management ◽  
Life Cycle Assessment Methodology ◽  
Materials Recovery

Six municipal solid waste management (MSWM) options (A1–A6) in Harare were developed and analyzed for their global warming, acidification, eutrophication and human health impact potentials using life cycle assessment methodology to determine the least impactful option in Harare. Study findings will aid the development of future MSWM systems in Harare. A1 and A2 considered the landfilling and incineration, respectively, of indiscriminately collected MSW with energy recovery and byproduct treatment. Source-separated biodegradables were anaerobically treated with the remaining non-biodegradable fraction being incinerated in A3 and landfilled in A4. A5 and A6 had the same processes as in A3 and A4, respectively, except the inclusion of the recovery of 20% of the recoverable materials. The life cycle stages considered were collection and transportation, materials recovery, anaerobic digestion, landfilling and incineration. A5 emerged as the best option. Materials recovery contributed to impact potential reductions across the four impact categories. Sensitivity analysis revealed that doubling materials recovery and increasing it to 28% under A5 resulted in zero eutrophication and acidification, respectively. Increasing material recovery to 24% and 26% under A6 leads to zero acidification and eutrophication, respectively. Zero global warming and human health impacts under A6 are realised at 6% and 9% materials recovery levels, respectively.

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