Transcript スライド 1

VISUALIZATION ANALYSIS OF LOCATION AND TREATMENT STATE
OF INDUSTRIAL SOLID WASTE USING GIS
Shinya Suzuki, Fumiaki Hirano, and Yasushi Matsufuji
Department of Civil Engineering, Fukuoka Univeristy
8-19-1, Nanakuma, Johnan-ku, Fukuoka, 814-0180, Japan
E-mail: [email protected]
1. Introduction
2. Materials and Methods
Proper solid waste managemet !
but, no body knows
actual treatment and landfill conditions
Municipal waste
(50 Mt/year)
“Annual Report”
Waste generation
・Location
・Waste amount
・Treatment method
Collection/Transportation
General waste
Because,
Each company and factory
“Industrial waste”
(400 Mt/year)
-bottom ash
-sludge
-oil
………
Business waste
“Annual Report”
Intermediate Treatment
・Location
・Treatment capacity
Waste service companies
Which facilities?
- Intermediate treatment(17,381)
incineration, crush, drying, ….
- Landfill site (2,717)
How?
- Any possibility to illegal
dumping?
Collection/Transportation
Landfill
・Location
・Treatment capacity
GIS
Visualization
・Relational Database
“SQL” search
- Site location
- Treatment capacity
- Treatment process
- Treatment flow
Database based on “Annual Report”
Where?
-in Fukuoka prefecture
- 5 thousand km2
- 5 million people (4%))
Who?
-Facilities in Fukuoka prefecture
- Intermediate treatment
- Landfill
- 37,000 data ! (FY 1999)
Fig. 1 Flow of this study
Fig. 2 Location of treatment facilities
Table 1 Characteristics of analyzed data
◆GIS?
Data analysis easier by relational database
-connection between multi tables based on common ID
-connection between map and attribute information
-enables data addition or modification freely
Merit
-can divide “shared” with “separated” database
-can minimize amount of data
-can guarantee consistency of data
◆to establish an integrated industrial waste management
system by using “Geographic Information System”
◆to analyze characteristics of location of treated facilities for
understanding of waste movement process by comparing
difference of waste
◆to analyze actual condition of construction waste
Date source
Target of data
Accuracy on data
Information of
location and
movement
Conventional method
Actual condition survey
on industrial waste
treatment
(Q uestionare)
Waste producer
about 50 %
impossible
Method in this study
"Annual report on the
waste treatment results "
Waste service company
almost 100 %
possible
3. Results and Discussions
3.1 Generation state of each kind of waste
600
600
500
500
300
100
2,500
50%
Construction material
Frequency
2,000
40%
Construction material
1,500
30%
1,000
20%
500
10%
600
Percentage of waste amount
20%
10%
50%
Plastics
40%
400
30%
300
20%
200
10000 -
7500
10000
5000
2500
750
1000
500
75
250
50
100
0%
25
10%
0
10
100
Sludge
Dehydration
(Unit: t/year)
Facilities Capacity(a) Actual amount(b)
(b)/(a)
30%
200
500
3.3 Treatment process in each treatment phase
Table 2 Comparison between treatment capacity and actual
amount of waste treated in each treatment method
40%
Frequency
Percentage of waste amount
400
3.2 Comparison between the treatment capacity and the actual treatment results
50%
Sludge
S ludge
Dehydration
Drying
(S un drying)
Incineration
Cement kiln
Others
Construction material
Crush and separation
Cement kiln
Others
Plastics
Crush and separation
Melting
Cement kiln
Incineration
11
5
5
7
5
13
160,000
112,000
92,161
16,361
0.58
0.15
35,000
1,621,000
438,000
10,077
442,044
59,490
0.29
0.04
0.14
94
5
2
12,340,000
11,621,000
73,000
1,196,504
267
982
0.10
0.00
0.01
48
12
5
28
1,991,000
27,000
349,000
52,000
108,407
700
28,134
7,200
0.05
0.03
0.08
0.14
Waste
Source
Cement kiln
Utlization
Incineration
Landfill
Drying
Sun drying
Construction material
Crush and
separation
Cement kiln
Utilization
Waste
Source
Landfill
Plastics
Crush and
separation
Fig. 4 Treatment capacity and actual amount of
waste treated in intermediate treatment facility
for construction materials
Melting
Utlization
Cement kiln
Waste
Source
Incineration
Landfill
◆Planned treatment capacities are much higher than those of actual treatment results
Waste amount（t/business/year）
Especially in case of cement kilns,
Fig. 3 Histogram on each category
of waste from waste source
◆Total amount of waste treated
Small number of specific businesses
have a great influence
→Waste service companies in other prefectures
1st treatment
◆Some have 8,000 t/facility of capacity in larger sites, and enable to accept various kinds of and large amount of
industrial waste
Quality of criteria of recycled product is necessary to be taken into consideration for utilization of existing facilities
◆Utilization of new technologies (melting, Refuse Derived Fuel (RDF) and Refuse Paper and Plastics Fuel (RPF) ):
also considered to facilitate utilization of industrial waste.
3.4 Flow analysis on each phase of treatment
2nd treatment
Fig. 5 Treatment process in each waste
◆1st treatment
Volume reduction, homogenization, separation
◆2nd treatment
Change of properties, reproduction or stabilization
Flow analysis on sludge
◆1st treatment
- Transported from neighboring municipalities, especially from Fukuoka city
◆2nd treatment
- Transported in great distance from such as Tokyo metropolitan area and Osaka area
◆Landfill
- Highest quantity of waste: transported from subway construction in Fukuoka city
→countermeasures for public work projects are effective to ensure waste minimization
Flow analysis on construction material
1st treatment (sludge)
1st treatment (construction material)
1st treatment (plastics)
◆1st treatment & 2nd treatment
- Similar to flow on sludge
◆Landfill
- High percentage of recovery for construction materials (90%)
- Expected to increase recovery rate by ensuring appropriate waste source separation and
waste treatment
Flow analysis on plastics
◆Landfill
- Amount of landfilled waste: equal to amount of waste generated (0.1 Mt/year)
→enough countermeasures for plastics reduction have not been implemented
because,
2nd treatment (sludge)
2nd treatment (construction material)
2nd treatment (plastics)
1. one of wastes accepted in “least controlled landfill sites” that can maintain at low cost
2. regulation for dioxins discharge has been tightend
4. Conclustions
Landfill (sludge)
Fig. 6 Visualization of flow on
sludge in each treatment phase
Landfill (construction material)
Fig. 7 Visualization of flow on construction
materials in each treatment phase
Landfill (plastics)
Fig. 8 Visualization of flow on
plastics in each treatment phase
◆We developed effective analytical method by reviewing treatment process of each classification
- Relating information about waste source and treatment facilities
- Important to analyze data by taking treatment process and waste generation/treatment
location into account
- Former utilization system: cost effective from point of view of capital cost of facilities
- Countermeasures for public work projects: effective to facilitate waste minimization