| 20 June 1997 | The Daily Post |
| Dirk Group demonstrates its expertise in
Ireland AN ENVIRONMENTAL services company is taking its innovative sewage disposal method to Ireland.. |
|
| May/June 1997 | Air Plus |
| Nouveau produit Le biofiltre Un filtre biologique flottant, sur lequel on peut marcher, permettant de rĂiduire les Ăimissions...  |
|
| Spring 1997 | Aquatech Europe |
| Alkaline sewage sludge stabilisation Waste Water Directive 91/271/EEC will result in a significant increase in sludge production in Portugal... |
|
| Jan/Feb/Mar 1997 | Ambiente Magazine |
| O processo utilizado por esta empresa inclui
o recurso a cinzas de carvĂco pulverizadas de estaĂgões... |
|