Doc Archives

The results of this study were detailled in the following presentation :ISA EFAR assessment of availability of heavy metals. Due to little transfer from the sludge to the plants (except for Cu and Zn) it does not seem possible to predict the bioavailability of heavy metals that are in the soils with the use of specific extraction reagents.

FAQ

1.1 What are Biosolids ?

1.2 What is the difference between Biosolids and sludge ?

1.3 Why do we have biosolids ?

1.4 How much bisolids are produced ?

2.1 Why are Biosolids spread on agricultural soils?

2.2 What are the alternative outlets to Biosolids landspreading ?

2.3 Can we use Biosolids for any crop production?

2.4 Do the nutrients contained in Biosolids have the same effects as those of mineral fertiliser?

2.5 How can one reduce the odors released during landspreading?

3.1 How is Biosolids quality controlled?

3.2 Should we fear the presence of pathogenic microorganisms in Biosolids?

3.3 Are there any inerts (plastics rubble…) or hydrocarbons into the Biosolids ?

3.4 Are there any medicinal substances (hormones antibiotics..) into the Biosolids ?

3.5 Can soils and crops receiving Biosolids be contaminated by heavy metals?

3.6 Are we absolutely sure that the landspreading of Biosolids is safe?

4.1 Why do some countries prohibit the landspreading of Biosolids?

4.2. What is the position of the food industry regarding Biosolids landspreading?

4.3 Are farmers in favor of the use of Biosolids in agriculture?

ORIGIN BIOSOLIDS

1.1 What are Biosolids?

1.2 What is the difference between Biosolids and sludge?