• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.13 no.3
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• pp.135-140
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• 2013

In this paper, we discussed about the volume monitoring system of a landfill facility. We proposed the waste volume calculation method using the point cloud of the surface of three dimensional object by measurement of the point cloud by the three dimensional scanner, which is based upon the robot technique. This computes not only the quantity of waste volume for continuos monitoring but also it helps not only to predict the evaluation factor of the usable age of a landfill. facility. Furthermore, the measuring system of waste volume was applied to the landfill facility in Ansung city.

• Clean Technology
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• v.24 no.3
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• pp.221-232
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• 2018

This research was conducted to evaluate the operational performance of landfill facility and landfill gas energy facility from the questionnaire survey. In order to evaluate overall operational performance, three types of weighting methods were applied to each technical, economical, and environmental item. There was no significant difference between an equal weighted method, a weighted method of 40% for technology, 30% for economy, and 30% for environment, and a weighted method of 30% for technology, 40% for economy, and 30% for environment. In technical performance, large and middle scales of landfill facilities showed higher scores of 14.8 ~ 19.7 and 14.3 ~ 19.0 than 9.8 ~ 13.0 of small scale one. In environmental performance, large, middle, and small scales of landfill facilities showed 21.3 ~ 23.7, 17.6 ~ 19.6, and 20.8 ~ 23.1 scores, respectively. However, in economical performance, there was significant difference between them with scale. Large and middle scales of landfill facilities showed higher scores of 22.0 ~ 29.3 and 20.5 ~ 27.3 than 6.0 ~ 8.0 of small scale one. As a result of evaluation for landfill gas energy facility, large scale facility showed 19.2 ~ 25.6 and 17.8 ~ 23.7 scores in technical performance and 23.1 ~ 25.7 and 21.3 ~ 23.7 scores in environmental performance, respectively. However, in economical performance evaluation, large scale of landfill gas energy facility showed relatively higher of 27.8 ~ 33.3 score than 18.8 ~ 25.1 of small scale one. From these results, it was shown that economy evaluation heavily effect on the operational performance of landfill facility and landfill gas energy facility compared to technology and environment evaluation.

• Journal of Korean Society of Water and Wastewater
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• v.27 no.5
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• pp.581-590
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• 2013

A research was performed for zero discharge system of waste water which is produced from energy recovery process of waste and biomass. Leachate and all kinds of waste water should be separated and integrated into three categories in addition to converting existing leachate treatment facility into waste water treatment facility as well as introducing a management system of reverse osmosis membrane facility and bioreactor landfill. Following these conditions to better water treatment process, it was likely to produce over 3,000 tons of low-grade recycling water and 2,000 tons of high-grade recycling water per day when zero discharge system of waste water is applied starting from 2016. Economical efficiency was also surveyed in total treatment fee. Present system costs 18,129 million won per year, and suggested zero discharge system would cost 15,789 million won per year.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.12 no.5
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• pp.153-159
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• 2012

For the enhancement of civilization of a city, the standard landfill facility is needed for the efficient, and computerized management. In this paper, we proposed the waste volume calculation method using the point cloud of the surface of three dimensional object based on stereo camera measurement. This computes the quantity of waste volume for continuos monitoring. It helps not only to predict the evaluation factor of the usable age of a landfill. facility. Furthermore, it can be used for the basis of general algorithm of three dimensional object.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.12 no.4
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• pp.161-166
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• 2012

In this paper, we constructed the systematic management and standardization of computerized landfill bringing system in Ansung landfill facility. During the system design process and database construction, we considered the specific items in Ansung landfill facility. And, we systemized and conventionalized the basic core data so as to we apply to another landfill facilities. And, we tried to standardize the system using the exception logic for specific items. For this purpose, we developed the landfill bringing management system which can help to manage a landfill efficiently. Basically We made efforts to standardize it's system architecture but also we considered it's localization to adapt An-sung Landfill's special requirements. We used RFID and LPR systems to distinguish a garbage truck from the others, and could establish more reliable landfill management system with this information. We expect that we can perform the systematic and the efficient landfill Bringing using the automated process of bringing in and taking out the waste process based on the developed system by automated RFID/LPR system.

• Journal of the Korea Organic Resources Recycling Association
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• v.3 no.2
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• pp.97-102
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• 1995

A questionare survey was performed to investigate the citizen's attitude concerning waste treatment facilities. Most people recognized the seriousness of the waste treatment problem and think that more composting facilities should be built. People dislike most the landfill facility, followed by the nightsoil treatment facility, the incineration facility and the composting facility. Most people answered that the disirable distance from their house to the treatment facility should be farther than 4km for the landfill facility, farther than 2km for incineration and composting facilities and farther than 1km for the wastewater treatment plant. Most people want moving cost+land price+inconvience suffering cost (amount equal to the land prize+building prize) for their retrieval. About 30% of people answered that they will not accept any waste treatment facility even though it is perfect.

• Proceedings of the Korean Geotechical Society Conference
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• 2008.10a
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• pp.259-266
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• 2008

In the past, MSW (Municipal Solid Waste) disposal was typically done by recycling, incineration, or landfilling. In South Korea prior to the late 1950's, land burial was usually accomplished by disposal in an open dump. Currently, with increasing concerns and environmental recognition, MSW disposal and landfilling is more restricted. MSW landfill facilities have been developed with certain design and construction specifications. However, these methods have a space for improvement. MSW landfill facilities follow a step wise approach of design, construction, operation and closure management after use in agreement with established environmental and sanitary standards. This study intends to give a technical guidance for installation and consideration of newly established MSW landfill facilities, and also provide an establishment and regular inspection of MSW landfill facilities.

• Proceedings of the Korean Environmental Health Society Conference
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• 2002.04a
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• pp.91-99
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• 2002

A recent survey investigated that there were over one thousand un-controlled closed landfills(1,072 sites) in Republic of Korea. Most of these landfills were constructed before 1986. Waste management act were not promulgated at that time, so they usually do not have dranage system and leachate treatment facility. Also, considerable attention has been received to landfill leachate pollution, leachate has an adverse impact on the surrounding environment such as soil, groundwater, and water supply source. According to the result of survey for closed landfill management, it was reported that 875 sites out of 1,072sites(81.6％) have no leachate treatment facility and 630 sites out of 1,072sites(58.7％) have been used for farm lands and residence. Consequently it is hard to do postclosure care continuously in most of cases and these uncontrolled landfills have contaminated farm lands and residence. The average age of these landfills are ranged mostly between 2 to 15 years. Much time and advanced technology are needed to remediate these uncontrolled landfills, therefore the survey for present status of closed landfill sites is required and suitable treatment processes should be prepared. With this point of view, We has been investigated to find out the present status of closed landfill, problems of post management and discussed plans for remediation and reuse. Remedial actions of un-controlled landfill have been carried out the many cities since 1997 upto now. Most frequently applied technology were reuse after excavation and there were several cases to capping in the surface of landfill and to construct subsurface barriers. It is considered that landfills in use have a possibility not to be controlled because of inadequate construction and improper management. Therefore remediation of uncontrolled landfills and recovery technology should be develop continuously Especially, it has been expected that resource technology of landfill gas as a energy has some advantages in controlling odors in the site area and accelerating stabilization of landfills with the energy.

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

• New & Renewable Energy
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• v.16 no.1
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• pp.68-76
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• 2020

Operational testing of the THIOPAQ^® facility that removes H₂S from landfill gas was performed for 746 days. The average H₂S removal efficiency was 99.4%, and the input quantities of air, NaOH, and nutrients per sulfur load were 13.1 ㎥/ton, 1.5 ㎥/ton, and 28.7 L/ton, respectively. The purity of the bio-sulfur produced from the facility was 94.8%, with 3.3% impurities, except for moisture. X-ray photoelectron spectroscopy showed that the compositional contents of amino acids and free amino acids of the bio-sulfur surface were 5,308 and 728 mg/kg, respectively. The mean particle size was 3.41 ㎛, which was much smaller than that of chemical sulfur. Based on these results, a high H₂S removal rate of more than 97% is feasible, and high value-added bio-sulfur, which is used as a fungicide because of its hydrophilic characteristics and small size, can be obtained at this facility.