| Title |
Environmental Accounting of the Total Maximum Daily Loads (TMDL) Program in the Nakdong River Basin using the Emergy Analysis |
| Authors |
김진이 ( Jin Lee Kim ) ; 이수웅 ( Su Woong Lee ) ; 김용석 ( Yong Seok Kim ) ; 이석모 ( Suk Mo Lee ) |
| Keywords |
Benefit/cost ratio; Emergy; Environmental accounting; Nakdong River Basin; Total maximum daily Loads; TMDL |
| Abstract |
This study, which evaluated the contribution of the real economic value and system in the Nakdong River Basin, estimated the emergy analysis for environmental accounting of the TMDL program. And an environmental accounting for TMDL is evaluated before and after adopting TMDL program respectively. The value of emergy after adopting the TMDL was 7.90 E+20 sej/yr. Although the real yield of the river after governmental investment was high (before: 9.7118 E+20 sej/yr and after: 9.7224 E+20 sej/yr), the effects of improvement was not great, in terms of an investment cost. The benefit/cost ratio resulted from environmental accounting has decreased from 1.493 to 1.230 due to the cost of managing treatment facilities. The method of improving water quality in the Nakdong River Basin by the TMDL program should be changed into an ecological treatment facilities using resources efficiently from a control of water quality depending on expansion of the wastewater treatment facilities and advanced treatment plant using high cost and non-renewable energies. |