• 한국생물공학회:학술대회논문집
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• 2005.04a
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• pp.279-279
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• 2005

• Environmental Engineering Research
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• v.24 no.4
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• pp.559-565
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• 2019

In order to alleviate the environmental pressure caused by production process of thermal power plants, the application of cleaner production is imperative. To estimate the implementation effects of cleaner production in thermal plants and optimize the strategy duly, it is of great significance to take a comprehensive evaluation for sustainable development. In this paper, a hybrid model that integrated the analytic hierarchy process (AHP) with least squares support vector machine (LSSVM) algorithm optimized by grid search (GS) algorithm is proposed. Based on the establishment of the evaluation index system, AHP is employed to pre-process the data and GS is introduced to optimize the parameters in LSSVM, which can avoid the randomness and inaccuracy of parameters' setting. The results demonstrate that the combined model is able to be employed in the comprehensive evaluation of the cleaner production in the thermal power plants.

• Clean Technology
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• v.9 no.3
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• pp.145-151
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• 2003

This study shows the evaluation and consulting for pollution prevention of dye production by cleaner production methodology. Especially, this study intended to investigate the methods for reduction of process water and recovery of organic solvent (DMF), and to modify the process for higher qualified products in the acid dye production by cleaner production methodology. This methodology, consisting of 7 sequential phases (business leadership decision to start, problem definition, evaluation of the screened options, option selection for implementation, implementation, monitoring and sustainable implementation), is based on initial developments in the USA and Western Europe. Reduction of process water over 25%, recovery of DMF and solubility enhancement of acid dye over 2 times were achieved.

• Clean Technology
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• v.2 no.1
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• pp.1-6
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• 1996

Cleaner production is of substantial importance in changing the environmental approach within advanced industrialized countries. The critical principles involve fundamental understanding of diverse industrial processes, adherence to the earliest techniques of a hierarchy for reducing wastes, and utilization of an underlying thought process to achieve pollution prevention successes that are both technically feasible and cost-effective. Chemical engineering has played a major and unique role in this environmental field. Improving the sustainability of cleaner production will rest on including this subject in the curriculum of university engineering.

• Clean Technology
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• v.8 no.4
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• pp.193-198
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• 2002

In a knowledge-based information society, the technology in itself is one of the most valuable information and in common use as assets. Assessment of a technology depends on many factors such as the grade of technology, marketability, and the time of evaluation, which makes it much more difficult to perform than the other tangible properties. Ultimately, it should be extremely important to consider environmental aspect for technology assessment in order to cope voluntarily with the change of uncertain future toward highly reliable evaluation.

• Journal of the Korean Society for Precision Engineering
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• v.20 no.8
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• pp.7-11
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• 2003

• Journal of the Korean Society for Precision Engineering
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• v.20 no.8
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• pp.12-16
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• 2003

• Clean Technology
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• v.24 no.3
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• pp.255-266
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• 2018

In this paper, the effects of large national industrial complexes on the generation of local hazardous substances were analyzed based on their size, industrial characteristics. In Seoul, the proportion of hazardous substances, which adversely affect the atmosphere of the entire city, was much less than that of other regional industrial complexes, centered on knowledge-based industries. On the other hand, other national industrial complexes based on manufacturing industries, such as machinery, metal, electricity, and electronics, were found to have a combination of industry characteristics and logistics and regional characteristics. Overall, it was found that the increase in productivity in large national industrial complexes was not proportional to the increase in hazardous substances throughout the region. In addition, it was also found that in North Gyeongsang Province, which is based on the heavy chemical industry, the percentage of hazardous substances is different from other regions due to the characteristics of the industry.

• Clean Technology
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• v.10 no.3
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• pp.131-137
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• 2004

Due to the low biodegradability of dyes, conventional biological wastewater treatment systems are inefficient in treating textile wastewater. In this study, white rot fungus, Trametes versicolor KCTC 16781, were investigated for the decolorization of Reactive black 5 solutions. This fungus was able to degrade the dye solutions by the ligninolytic enzymes (laccase and MnP) produced. The enzyme activity remained constant until the end of reaction. The combined process of biological treatment and ceramic membrane showed better efficiency for decolorization and TOC removal than each single process.

• Clean Technology
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• v.22 no.4
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• pp.316-325
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• 2016

Ever since the concept of clean production technology was introduced to the Korea industry communities, 16 years has passed, but there is still some confusion regarding to the definition and the meaning. It ascribes that SMEs do not widely accepted the concept and therefore the dissemination is still not widen. This study has explored the definition and the categories of clean production technologies as well as compared the relationship between the environment technology and green technology.In addition, as a policy plan to disseminate cleaner production technologies to small and medium enterprises, several policies are suggested hoe to improve and expand eco- innovation projects that are currently supported by the government.