In most of Europe these GD's are not used at all as the high load of organic matter in the waste water requires a higher capacity sewage treatment plant.
The high load of organic matter in the sewage requires a higher capacity waste water treatment plant. In most of Europe these GD's are not used at all.
In most of Europe these GD's are not used at all. The high load of organic matter in the sewage requires a higher capacity waste water treatment plant.
In most of Europe these GD's are not used at all. The high load of organic matter in the sewage requires a higher capacity waste water treatment plant.