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|
| World Environment Day 2005 : Environmental Health |
| Promote the Public Health - Hazardous
Elements : National DATA
|
Industrial Units in 5 Municipal Wards in Dhaka City |
|
| Municipal Ward |
Number of Units |
Types of Units |
| 5 (Pallabi and
its adjoining areas) |
500 |
Saree, Paints,
Mosquito repellent, Candle, |
|
|
Foundry, Moulding,
Welding, Rubber shoe. |
|
|
|
| 27 (Sabujbag and
its adjoining areas) |
20-25 |
Foundry, Welding,
Moulding. |
| 42 (Mohammadpur
and its adjoining areas) |
40-50 |
Shoe, Rubber
sandal, Welding, Moulding, |
|
|
Foundry, Candle,
Incense. |
| 65 (Islamabag and
its adjoining areas) |
2500-3000 |
Plastic,
Engineering |
| 81 (Gendaria and
its adjoining areas) |
100-150 |
Padlock,
Engineering, Pharmaceuticals, Moulding, foundry. |
|
|
|
| Source: People's Report
2002-2003 on Bangladesh Environment, Vol-1, MoEF-US-UNDP |
| Hazaribagh
Tannery Waste Composition |
| |
|
| Contaminants |
Avg. Composition (mg/l) |
| Chromium |
20 |
| Total Solids |
13500 |
| Volatile Solid |
3000 |
| COD |
4500 |
| Sulphide |
63 |
| Source : BCSIR
(2000) |
|
| Wastewater
Characteristics of Selected Fertilizer Factories, 1994 |
|
|
|
|
|
|
|
Urea Fertilizer Factory at Ghorashal |
T.S.P. Complex at Chittagong |
Chittagong Urea Fertilizer Factory at Chittagong |
| Parameter |
|
Sample 1 |
Sample 2 |
Sample 3 |
| pH |
8.5 |
8.25 |
8.3 |
4.5 |
9.4 |
| (mg/l) |
200 |
40 |
120 |
0 |
0 |
| BOD 5 |
|
|
|
|
|
| COD (mg/l) |
340 |
65 |
320 |
20 |
200 |
| SS (mg/l) |
760 |
1263 |
562 |
11910 |
4968 |
| Total Solids
(mg/l) |
4872 |
5239 |
4898 |
NA |
NA |
| Turbidity (NTU) |
27 |
3.9 |
7.4 |
NA |
NA |
| Color (TCU) |
60 |
2 |
10 |
NA |
NA |
| Phosphate (mg/l) |
NA |
NA |
NA |
56 |
7 |
| Nitrate (mg/I) |
4.5 |
5 |
15 |
20 |
22 |
| Ammonia-N (mg/l) |
55 |
65 |
90 |
NA |
NA |
| Kjeldahl-N (mg/l) |
86 |
82 |
115 |
15 |
185 |
| Chromium (mg/l) |
0.358 |
0.372 |
0.025 |
0.075 |
0.022 |
| Nickel (mg/l) |
0.038 |
0.03 |
0.064 |
0.068 |
0.087 |
|
Source : Faisal et. al. (2001), People's Report
2002-2003 on Bangladesh Environment, Vol-1, MoEF-US-UNDP |
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