NEWS
 

A new type of scrubber for mercury containing gas was installed in a crematorium in March last year.

The gas scrubber has been in full working order for these 10 months.

 

 January 24th 2002
The crematorium in Kristiansand, Norway has a single chamber furnace with an ejector in the "old" chimney providing the draft in the furnace.

The gas scrubber has been in full working order for these 10 months without commission, which incidentally was done this week.

We found the following:

  1. The water tank was "full" of a black dust captured from the furnace off-gas. The outlet gas is virtually free of dust.
  2. The limestone rocks were pure white, as when they were in the start in 2001, 10 months ago. The rock bed need not be replaced, only filled up when needed. The rocks had spalled somewhat, as some fine limestone dust was on the bottom of the water tank.
  3. No corrosion was detected on the 316L stainless steel body, due to the fact that the water temperature is always < 50 °C.
  4. The average emission of mercury is now < 0.050 mg Hg/Nm3, over 4 cremations. This is less than the suggested Norwegian standard to come in a year or two.
  5. The scrubbing water bleed to the recipient (sewer) contained only 0.0002 mg Hg/liter, after being cleaned in two consecutive active carbon barrels.

 

The new operation was improved when compared to the old one. The draft in the furnace is better, hence shorter cremation time. The better draft also lower the CO content of the off-gases, to < 50 ppm on an average.

The scrubber was delivered in pre made units, ready to be installed by qualified personnel, such as plumber, electrician, oil-burner installation, and mechanical installations.

 
Information: mail to miltec@online.no

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Date this page was last edited    02.09.02