Skip to main content.

12 Site J

12.1 Introduction

Sampling was carried out at Site J on 1 April 2003. Samples were collected from the induction furnace discharge to determine the concentration and mass emission of PCDD and PCDF present in the gases discharged to the atmosphere.

The sample point was in a vertical section of duct at least five diameters from a disturbance to the flow.

Details of the sampling date, times and stack dimensions are:

  • Sample date and time:
    • Sample 1: 1 April 2003, 9:10-13:19
    • Sample 2: 1 April 2003, 14:16-18:16
  • Stack dimensions: 0.702 metre diameter circular duct.

12.2 Results

Table 12.1: Particulate emissions from induction furnace

Sample Sample mass
(g)		 Particulate emissions
(mg/m3, dry, 0°C, 1 Atm) (kg/h)

1

0.0018

0.38

0.0079

2

0.0045

1.09

0.023

Average

  

0.74

0.015

Table 12.2: Average stack gas conditions at the induction furnace sampling point

View average stack gas conditions at the induction furnace sampling point (large table)

Table 12.3: Results of isokinicity for induction furnace

Sample Actual sample volume
(m3, 0°C, 1 Atm, dry)		 Calculated sample volume
(m3, 0°C, 1 Atm, dry)		 Isokinicity
(%)

1

4.6801

4.6200

101

2

4.1430

4.2227

98

All samples are within the required isokinicity range of 100 ± 10%.

Table 12.4: Combustion gas results

CO
(mg/m3)		 SO2
(mg/m3)		 NO
(mg/m3)		 O2
(%)		 NO2
(mg/m3)

1.4

<25

4.7

21.1

<9

Table 12.5: Summary results from gas melting furnace sample 1

View summary results from gas melting furnace sample 1 (large table)

Table 12.6: Results from induction furnace (individual congeners sample 1)

View results from induction furnace (individual congeners sample 1) (large table)

Table 12.7: Summary results from gas melting furnace sample 2

View summary results from gas melting furnace sample 2 (large table)

Table 12.8: Results from induction furnace (individual congeners sample 2)

View results from induction furnace (individual congeners sample 2) (large table)

[ | ]