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Waste Statistics 1996

4. Hazardous waste

Table 8, which shows a summary of hazardous waste, includes waste from primary and secondary sources distributed by mode of treatment.

Table 8. Production of hazardous waste in 1995 and 1996. Stated in tonnes and mode of treatment

Recycling

Incineration

Special treatment

Landfilling

 Total
  1995 1996 1995 1996 1995 1996 1995 1996 1995 1996
Primary sources                    
Lead batteries1 12,282 14,200             12,282 14,200
Hermetically closed nickel-cadmium batteries8 35 33.5             120 120
Waste oil transported to district heating plants2     19,200 20,734         19,200 20,734
Oil and chemical waste to Kommunekemi3 and 7 of which         92,260 82,509     92,260 82,509
Detergent and soap waste         1,619 1,468        
Organic aromatic solvents         4,380 5,290        
Other organic solvents         2,448 2,701        
Wastes of printing ink, paints, varnish with organic solvents         6,472 6,535        
Liquid organic residues from distillation         3,154 2,346        
Anti-freeze liquid         1,039 868        
Acidic aqueous solutions         5,023 4,820        
Photographic developer         7,186 5,407        
Alcaline aqueous solutions         3,045 2,498        
Sludge of metalhydroxide and metaloxide         5,509 4,796        
Sludge from fume washing and fume filter dust         2,415 1,641        
Waste from production of chemical pesticides         1,050 519        
Medical waste         1,012 961        
Chemical waste from laboratories.         1,650 2,342        
Waste oil         16,709 14,612        
Other wastes received on the central treatment facility of Kommunekemi         29,549 25,705        
Dust emitting asbestos3             7,300 7,800 7,300 7,800
Hospital waste3 og 4     7,800 5,700 2,800 3,000     10,600 8,700
Sulphuric acid (coal-fired power stations)5 22,000 22,000             22,000 22,000
Oil and chemical waste from other primary sources3 10,300 12,200 2,200 10,100 2,700 2,600   5,800 15,200 30,700
Total primary sources 44,582 48,400 29,200 36,534 97,400 87,900 7,300 13,600 178,962 186,763
Secondary sources                    
Filter dust from flue-gas cleaning/steel production1 9,991 10,487             9,991 10,487
Fly ashes and flue-gas cleaning from waste incineration plants 3,6         18,900 26,500 44,400 45,400 63,300 71,900
Total secondary sources 9,991 10,487     18,900 26,500 44,400 45,400 73,291 82,387
Total 54,573 58,887 29,200 36,534 116,300 114,400 51,700 59,000 251,773 269,150

Source: (1) Registrations according to EU´s regulation 259/93 of shipments of waste, (2) Danish Environmental Protection Agency’s payment of subsidies for recovery of waste oil, (3) ISAG-report 1995 and 1996, (4) Odense University Hospital but only for 1995, (5) Elsam, (6) The figure for special treatment covers that the quantity in fact is stored. (7) Kommunekemi A/S, (8) Calculations by the Environmental Protection Agency. The difference between total waste quantities of hermetically closed nickel-cadmium batteries (120 tonnes) and the collected amount for recycling is due to the fact that the batteri-es are not collected separately, but comprised by the general collection of waste.

Waste from secondary sources, such as waste from incineration plants, is not included in the total waste production, cf. Table 1. However, it is reasonable when assessing the total production of hazardous waste to include waste from both primary and secondary sources.

The above table shows that there has been a minor increase of 17,000 tonnes in the production of hazardous waste. The major part of this increase is due to fly ash and flue gas cleaning products from waste incineration plants which must be seen in relation to the increased incineration of waste. Furthermore, an increase in the amount of oil waste incinerated at waste incineration plants has been seen.

The 20,734 tonnes of waste oil led to incineration at district heating plants in 1996 is the highest amount since 1993, when subsidies were introduced to the incineration of waste oil at district heating plants. In 1994, 19,500 tonnes and in 1995 19,200 tonnes were received.

Kommunekemi has received around 10% less waste in 1996 compared to 1995. The quantity received by Kommunekemi of 82,500 tonnes is the lowest since 1984.

With regard to hermetically closed nickel-cadmium batteries a legislative modification was made in 1996 aiming at furthering the collection and recycling of these batteries. The fee amounts to DKK 6 per battery. A reimbursement of DKK 120 per kilo is granted to collected, closed nickel-cadmium batteries delivered for recycling. Whereas in all of 1996 33,5 tonnes of hermetically closed nickel-cadmium batteries were collected for recycling, in the first half of 1997 alone 70 tonnes have been collected. This indicates that the new act aiming at increasing the collection of nickel-cadmium batteries seems to be effective.

The Environmental Protection Agency estimates that the quantity of dust emitting asbestos reported to ISAG as hazardous waste of a little less than 8,000 tonnes is somewhat higher than the actual quantity of dust emitting asbestos. According to the Statutory Order on asbestos from the Ministry of Work (no. 660 of 24th September 1986) asbestos is divided into three categories: I) dust emitting asbestos, II) asbestos that may emit dust and III) non-dust emitting asbestos waste. Only asbestos of category I is hazardous waste, but the reports to ISAG also comprise asbestos from category II.

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