III. Experimental Method
1. Pretreatment experiments
Before recycling or incineration bottom ash samples, "Waste Management Ribeop Enforcement Rules "recycling exchanger as set forth in paragraph 3 of Article 14 2 Implementing Regulations to determine whether they meet the criteria Specific quality materials and recycling "Schedule 5 2" waste Use "based analysis was 7), and recycling standards For the study did not meet the incineration bottom ash The results were found to perform cleaning pretreatment by literature This has been fixed. Pre-treatment cleaning solid-liquid ratio was 1 to 10, the washing time 60 minutes, stirring speed of 200 RPM been selected And physical and chemical properties and compared to a pre-treatmen
t changes It was 8-9).
t changes It was 8-9).
2. Structural lightweight aggregate (KS F 2534)
Bottom furnace facility structure in this part of the collection of the ash resource The Korean government to determine if it is suitable for integrating industrial use Lightweight aggregate value of the specific structure (Korean Standard, KS) Analysis performed for the item used was 10). Particle size analysis tube Table 2 test, was recorded in the physical and chemical properties Standard table as 3.
3. The bottom ash aggregate for road (KS F 4569)
Bottom ash used in road construction aggregate for aggregates Subbase statue road instead of the layer, or bone As content, incineration bottom ash aggregate for roads in this section Whether the appropriate standard. To evaluate whether the number to 11). From Korea to set the industry standard for street (Korean Standard, KS) Table 4 as the bottom ash recycling and agencies And is equal to 5.
IV. Results and Discussion
1. Analysis After the pre-treatment cleaning
District "Waste Management Law" floor Regulations Ignition for recycling and analyze the damage stability criteria Results are shown in Table 6. 'A' and 'B recover resources Ignition Facility has been burnt down to ashes accumulated losses, susoyi Concentration, copper, arsenic, mercury, only hexavalent, chromium and chlorine in products It was not a tribe. Thus, preprocessing was cleaning cleaning everything. , The pre-treatment wash 'A' before and after the analysis result and 'B' facilities Meet the standards of incineration bottom ash stability assembled all the consequences It shows. However, the resource recovery facility in case of loss on ignition Small physical properties being imported and domestic waste recovery facilities This value depends only on the washing pre-treatment, so each performance Item hard to turn 13). Also in the bottom ash, incineration Cao is the presence of CaCO3 and CO2 bonded Hawaii Formed by volcanic minutes showed that an increase of incineration bottom ash 8,12).
2. Structural lightweight aggregate (KS F 2534)
Composition intended for the treatment washing performing incineration bottom ash A lightweight overall recycling capacity assessment results Behind. Fig. 1 'o' and 'B' resource recovery facility body Experimental results show the names of the result of the body in two places did not meet the criteria for a pass percentage chebyeol This was confirmed.
The remaining ingredients except the chemical name, physical properties of the body The experimental results are listed in Table 7. As a result, Sulfur trioxide, chloride, the mass of unit volume (Loose) and Korea Industrial Standard other organic impurities remaining items Can be obtained from the price does not meet certain criteria It seemed. Replacement of the main factors in the values of the ignition loss during recovery resources Physical properties of waste being imported Seolbyeol a difference Not suitable for recycling, seems to reduce the force A factor 13). The lump of clay If the value is higher for entry to determine the total impurities And drop adhesion and durability of an element, Experimental results are shown to exceed the reference value 14) range. Particle size of less than 0.08 mm are scattered and environmental protection issues And to refrain from the use of such facilities Did not meet the reference value 15). Also, know the stability smell The figure shows four groups of structural lightweight aggregate more than half the facilities to allow for stabilization of the overall group results According to the Hagieneun was determined to be appropriate, Bottom ash incineration of 'A' and 'B' created on the server Resource Recovery Facility When used as a structural lightweight aggregate is likely to be very low It is believed.
3. The bottom ash aggregate for road (KS F 4569)
Pretreatment incineration bottom ash treatment targets for Bottom Road Ash analysis of the quality of the thread-based particle size and physical performance Were tested. Fig. As a road, as shown in Figure 2 Bottom ash aggregate of structural lightweight aggregate particle size analysis As well as analysis Road AIDS prevention layer and the particle size statues A layer of the particle size analysis criteria for recycling He was not satisfied.
The table is a physical performance test of the bottom ash for 8 streets Shows the results. plasticity index and liquid limit test results, It was able to get non-modified plastics CBR value, as the sand Experimental measurements of both the overall This exhibition. But the water below the ash resource recovery facility 'B' The results do not meet the criteria of standing wear loss Can be obtained from this. Wearing the overall extent and strength gyeongyeong As a direct representation of the data, the Layer Road W Group Jill took the floor to facilitate the realization of 'B' means more than half Statue of aggregate materials resistant board to recycle It's only 16).