• Journal of Environmental Health Sciences
• /
• v.34 no.6
• /
• pp.414-422
• /
• 2008

Methane is a potent greenhouse gas and methane emissions from landfill sites have been linked to global warming. In this study, LandGEM (Landfill Gas Emission Model) was applied to predict landfill gas quantity over time, and then this result was compared with the data surveyed on the site, Cheongju Megalo Landfill. LandGEM allows the input of site-specific values for methane generation rate (k) and potential methane generation capacity $L_o$, but in this study, k value of 0.04/yr and $L_o$ value of $100\;m^3$/ton were considered to be most appropriate for reflecting non-arid temperate region conventional landfilling like Cheongju Megalo Landfill. Relatively high discrepancies between the surveyed data and the predicted data about landfill gas seems to be derived from insufficient compaction of daily soil-cover, inefficient recovery of landfill gas and banning of direct landfilling of food waste in 2005. This study can be used for dissemination of information and increasing awareness about the benefits of recovering and utilizing LFG (landfill gas) and mitigating greenhouse gas emissions.

• Proceedings of the Korean Society of Agricultural Engineers Conference
• /
• 2002.10a
• /
• pp.465-468
• /
• 2002

Land application is one of the desirable management practices for animal wastes. Majority of livestock farms adopt composting and land applications for the management of animal waste in this country. Meanwhile, there are only a few studies related with the effects of land application on pollutant loading. This study investigates the water quality characteristics in a rural watershed with intensive livestock farming. The results indicate that major constituents of water quality are substantially increased at the sites near livestock farms and compost incorporated fields during the rainfall-runoff periods. There are no significant differences of water quality parameters among the sampling sites during no rain periods.

• Journal of Korean Society of Rural Planning
• /
• v.5 no.1 s.9
• /
• pp.45-55
• /
• 1999

The applicability of resistivity cone for contaminant investigation in farm land was examined in laboratory and in-situ. To verify the resistivity variations in sand with contaminants, laboratory experiment used soil resistivity test box was performed. Heavy metal and others ions were appeared steep variations in low concentration. Pilot test results were the same as laboratory test results. In the in-situ test used resistivity cone, resistivities of waste landfill layer were low than the common soil layers and resistivities had been difference with concentration of contaminant components. Therefore contaminant investigation in farm land using resistivity cone was expected very effective.

• Journal of Environmental Impact Assessment
• /
• v.4 no.2
• /
• pp.131-149
• /
• 1995

The object of this study is to suggest some alternatives for environmental management towards sustainable urban development of Chongju city in Korea. This study analyses urban environmental indicators (population density, land use, road, park, car, etc.), level of air and water pollution and solids waste generation by comparing Chongju city and other large cities. Some alternatives towards sustainable development in Chongju city would be summerized and suggested as higher concentrated land use(compact city), mixed land use, supply of mass transit, establishment of regional environmental standards, total emission regulation of air and water pollutants, the preparation of Local Agenda21 of Chongju, and the introduction of strategic environmental assessment(SEA) into environmental impact assessment.

• Proceedings of the Korean Geotechical Society Conference
• /
• 2008.03a
• /
• pp.947-954
• /
• 2008

Waste landfills built on weak soils have the possibilities of the failure of slope and foundation due to the disposed waste loads. To ensure the landfill will sustain its stability within a limited site area, it's necessary to investigate and understand the characteristics of soft land by identifying the requirements for waste filling and by quantitative field measurement and management of landfills. In this paper, the stability analyses are performed using the field measurement data of Gimpo #2 Metropolitan Landfil. For the stability analysis, Tominaga-Hashimoto method and Kuriharh method, which may be able to manage the stability of the landfill quantitatively, are used.

• Environmental Engineering Research
• /
• v.24 no.2
• /
• pp.211-219
• /
• 2019

Since improper management practices of solid medical waste (SMW) could potentially result in serious health risks and environmental problems, it is very important to properly treat and dispose of the medical wastes. In this study, current practices of SMW management from storage to final disposal stage in 12 health care facilities (HCFs) of Burundi were investigated using the official government reports. The results showed that 75% and 92% of HCFs used uncovered wheelbarrows and trucks for on-site or off-site SMW transportation, respectively, indicating that most transportation equipment and waste workers are not safely protected. The results also showed that 92.8% of SMW (15,736.4 ton) from all 12 HCFs were inappropriately disposed of through uncontrolled land disposal and incineration. If pharmaceutical wastes and discarded medical plastics (29.5% of SMW) can be separated and treated properly, the treatment costs can be reduced and resource savings can be achieved. Raising awareness of healthcare workers and general public about potential health effects arising from improper SMW management, sufficient financial and human resources for the treatment facilities (especially incinerators), and effective regulations and guidelines for transportation and treatment of SWM are some of the major tasks for safe and sustainable medical waste management in Burundi.

• Journal of Environmental Impact Assessment
• /
• v.4 no.3
• /
• pp.49-54
• /
• 1995

Most of the solid waste has been land-filed as an ultimate disposal method in Korea, with might induce many environmental problems by generating odor, particulates and leachate. The landfill site should be considered as a kind of pleasant facility to neighboring residents. Currently, for a landfill site, while the environmental law requires to perform the EIA before the planning. EIA has been performed after the selection of the landfill-site. That might be controversal to the purpose of doing EIA. In this study, the weakness of the EIA for the landfill-site was analysed and was suggested for comprehensive EIA in Korea as well.

• Proceedings of the KSRS Conference
• /
• 2003.11a
• /
• pp.933-935
• /
• 2003

Geo-scientifically viable, environmentally suitable, and socially acceptable sanitary landfill sites are very limited in the Kathmandu Valley and is confronted with the burning problem of safe disposal of urban waste. This paper deal with the evaluation and assessment of its interface, following the major criteria defining suitable geological barrier, Cation Exchange Capacity and other necessary physical parameters with the optimum utilization of remotely sense data along with GIS techniques. The study revealed one of the most viable sites at the flat land of natural depression of Taikabu area and has potential to serve all the municipalities of the Kathmandu Valley.

• Proceedings of the IEEK Conference
• /
• 2001.10a
• /
• pp.650-654
• /
• 2001

To utilize municipal solid waste incineration ash as useful resources in Korea, studies on the present state of production and management of incineration ash and its effects on environment were made. And, it was intended to analyze the management conditions of incineration ash in many foreign countries and reflect them in domestic incineration ash policy. Korean incineration ash policy is based on the control of waste production, considering the difficulties in securing landfills and the small size of national land, and will be changed into recycling- and incineration-centered one. Furthermore, studies on the stabilization and recycling of incineration ash should be continuously conducted to overcome the concerns about environmental pollution.

• Asian-Australasian Journal of Animal Sciences
• /
• v.12 no.4
• /
• pp.607-628
• /
• 1999

The swine waste industry is growing rapidly along with the world human population. The trend is toward more concentrated piggeries with numbers of herds in the thousands. Associated with these increased herds are large quantities of wastes, including organic matter, inorganic nutrients, and gaseous emissions. The trend in swine waste management is toward treatment of these wastes to minimize negative impact on the health and comfort of workers and animals and the atmosphere, water, and soil environments. Treatment of these wastes has traditionally involved land application, lagoons, oxidation ditches, and conventional batch and continuously stirred reactor designs. More sophisticated treatment systems are being implemented, involving advanced anaerobic digester designs, integrated with solids separation, aerobic polishing of digester effluents, and biological nutrient removal. This review discusses the present and future role of anaerobic processes in piggery waste treatment with emphasis on reactor design, operating and performance parameters, and effluent processing.