초록 close

For the test evaluation to induce vegetation to plant unproductive mine waste area, we have observed the growth process of Miscanthus sinensis grows wild in mine-waste area with molding sewage sludge in the same area. In comparison with each plant height growth (cm/month), fresh weight growth (g^(fw)/month), and dry weight growth (g^(dw)/month) percentage from a molding sewage sludge experimental plot and an untreated experimental plot, the average plant height growth of Miscanthus sinensis from 10% and 20% molding sewage sludge plot was 7.4 cm/month, while untreated Miscanthus sinensis was recorded 1.8 cm/month. In addition, the average biomass growth percentage (g^(fw)/month) from the sewage sludge treated Miscanthus sinensis was some 19.7 g^(fw)/month, which is 3.3 times higher than 6.2 g^(fw)/month for the latter. The average dry weight growth percentage (g^(dw)/month) of sewage sludge treated Miscanthus sinensis was also 3.3 times higher than untreated one, each of which are 3.72 g^(dw)/month, 4.04 g^(dw)/month for the former and 1.21 g^(dw)/month for the latter. Moreover, the range and number of Miscanthus sinensis community from treated plot were greater than the other as well. We have acknowledged that the possibility of recycling sewage sludge is quite effective from the results by an experiment of molding sewage sludge in the mine waste area. As we have observed the positive possibility of sewage sludge reuse on the mine waste area in order to prevent mine waste erosion by plant restoration with the use of sewage sludge on difficult condition for plants, So it is suggested to utilize the produced sludge by small Sewage Treatment Plant which has less heavy metal and toxic substance.