Amount of Waste Generated, Collected and Transported to Dumping site:
|
Data Source |
Assumed collecting by the DCC (%) |
Volume collected by the DCC (m3) |
Assumed density of Solid Waste (ton/m3) |
Quantity disposed at dump sites (ton/day) |
Solid Waste generation (ton/day) |
|
BKH, 1985-86 |
50 |
937 |
0.56 |
520 |
1040 |
|
DCC, 1985 |
50 |
1600 |
0.56 |
888 |
1776 |
|
LBI, 1990 |
50 |
NA |
N.A |
1250 |
2500 |
|
WHO, 1990 |
50 |
1381 |
0.80 |
1105 |
2210 |
|
MMI, 1991 |
50 |
1174 |
0.58 |
683 |
1300 |
|
JICA, 1991 |
50 |
N.A |
N.A |
770 |
1540 |
|
PAS, 1997 |
75-80 |
N.A |
0.35 |
N.A |
3000-5000 |
|
RSWC, 1998 |
50 |
N.A |
0.60 |
600-800 |
1200-1600 |
|
BCAS, 1998 |
50 |
N.A |
0.604 |
1199 |
2398 |
|
DCC, 1999 |
Little over 50 |
N.A |
0.689 |
1800 |
3500 |
Source: BCAS, 1998 and ibid.
Average Composition of Solid Waste for Different Areas:
|
Area Type |
Food waste |
Paper |
Polythene |
Cloth |
Garden Trimming |
Brick Wood, Metal and Glass |
Leaves and branches |
Density |
|
CA |
35.77 |
13.33 |
12.85 |
29.57 |
0.00 |
4.77 |
3.73 |
450 |
|
IA |
19.89 |
33.77 |
18.50 |
0.27 |
0.00 |
1.09 |
0.25 |
456 |
|
HIG-R |
69.52 |
6.60 |
6.32 |
1.83 |
2.18 |
5.00 |
8.56 |
518 |
|
UMIG-R |
56.72 |
4.30 |
16.42 |
7.64 |
2.30 |
7.50 |
3.84 |
438 |
|
LMIG-R |
73.01 |
7.06 |
15.32 |
1.55 |
0.00 |
1.49 |
1.67 |
468 |
|
LIG-R |
89.25 |
1.86 |
6.39 |
1.38 |
0.00 |
0.00 |
0.43 |
650 |
CA - Commercial Area. UMIG-R - Upper Medium Income Group-Residential.
IA - Industrial Area. LMIG-R - Low Medium Income Group Residential.
HIG-R - High Income Group Residential. LIG-R - Low Income Group-Residential.
Source: Rahman et al(1999), BRTC, BUET,
Dhaka.
Average Composition of Solid Waste Collected from Different Locations of
Dhaka:
|
Location type |
Vegetable matters and remaining of fruits (%) |
News paper
(%) |
Card hoard
(%) |
Tree trimmings and straw
(%) |
Metals
(%) |
Glass (%) |
Stone, ceramics and debris (%) |
|
Mixed area |
70.12 |
4.16 |
0.16 |
10.76 |
0.13 |
0.25 |
4.29 |
|
Industrial |
26.37 |
7.59 |
0.00 |
4.32 |
0.00 |
0.00 |
9.49 |
|
Commercial |
62.05 |
6.28 |
0.00 |
2.86 |
0.28 |
0.37 |
3.79 |
|
Residential |
59.91 |
11.21 |
0.00 |
8.76 |
0.15 |
0.00 |
2.30 |
|
Plastics and Polythene (%) |
Batteries (%) |
Clothes (%) |
Others
(%) |
|
4.71 |
0.00 |
4.57 |
0.85 |
|
6.03 |
0.00 |
46.20 |
0.00 |
|
4.62 |
0.00 |
18.93 |
0.82 |
|
17.67 |
0.00 |
0.00 |
0.00 |
Source: BCSIR-WB-GOB (1998)
Average Moisture Content (%) of Solid Waste:
|
Area |
Food Waste |
Paper |
Poly
-thene |
Cloth |
Garden Trimming |
Brick, Wood, Metal and Glass |
Leaves and Branches |
Shredded Skin and Leather |
|
CA |
70.02 |
66.64 |
64.07 |
51.75 |
0.00 |
18.96 |
68.74 |
0.00 |
|
IA |
66.67 |
43.72 |
43.42 |
60.91 |
0.00 |
21.85 |
80.77 |
48.03 |
|
HIG-R |
56.08 |
48.88 |
54.44 |
43.42 |
58.97 |
32.93 |
47.26 |
0.00 |
|
UMIG-R |
67.85 |
53.47 |
43.92 |
27.18 |
59.55 |
12.22 |
46.72 |
48.06 |
|
LMIG-R |
61.31 |
42.54 |
42.55 |
52.58 |
0.00 |
27.54 |
57.60 |
0.00 |
|
LIG-R |
44.63 |
53.45 |
31.99 |
53.76 |
0.00 |
0.00 |
53.24 |
0.00 |
CA - Commercial Area. UMIG-R - Upper Medium Income Group-Residential.
IA - Industrial Area. LMIG-R - Low Medium Income Group Residential.
HIG-R - High Income Group Residential. LIG-R - Low Income Group-Residential.
Source: ibid.
Chemical Analysis of the Solid Wastes of
Dhaka
City:
|
Location Type |
Average Constituents (%) by weight. |
|
Moisture |
Carbon |
H2 |
N2 |
S |
Ash |
Oxygen & others (by difference) |
Calorific value Btu/lb. |
|
Mixed |
65 |
10.30 |
1.76 |
0.63 |
0.01 |
20 |
2.73 |
1735 |
|
Industrial |
60 |
9.90 |
2.00 |
0.58 |
negligible |
25 |
2.52 |
1680 |
|
Commercial |
54 |
17.81 |
1.92 |
0.46 |
0.02 |
22 |
3.79 |
2254 |
|
Residential |
50 |
26.06 |
3.53 |
1.62 |
0.01 |
18 |
0.78 |
2600 |
Source : ibid.
Heavy Metal Content of the Ash Residue of the Refuse of DCC:
|
Sample Location |
As mg/kg Ash |
Hg
mg/kg Ash |
Cd
mg/kg Ash |
Cr
mg/kg Ash |
Cu
mg/kg Ash |
Pb
mg/kg Ash |
|
Industrial |
2.69 |
0.15 |
1.51 |
| 
