Start your IST sludge request here

In order to prepare a firm offer based on your specific requirements, it is important that you provide us with the following information :

1. Project scope

  • Brief description of the request
  • KPIs
  • Any restrictions 
  • Planning :
    • desired start date
    • expected duration of project
    • working hours

2. Invoicing data

  • Company name, address
  • VAT-number
  • Commercial registration number

3. SDS – all potentially present (hazardous) components 

Information regarding substances used in the production process which may be traceable in sludge / wastewater: 

  • concentration
  • health risks

4. Complete the "sludge sample registration form"

Please complete the Sludge samples registration form and return the signed form by email to

By signing the document, you agree to be invoiced for the stated (fixed) amount for the laboratory analysis.

5. Send a representative sludge sample

Once we have received the completed document from you, our lab will set up your analysis file.

The sludge sample (approx.10 litres) can be sent to us from then onwards:

Indaver Separation Technologies
Spoorstraat 25
4431 NK ’s-Gravenpolder 

As soon as our lab has completed the analysis (allow approx. 1 to 2 weeks), we will contact you to discuss the results. Based on the outcome of the lab analysis, we can advise you on the recommended dewatering technique. A possible start date can then be agreed in consultation with our planning team. 

We are looking forward to receiving your sludge request. 

Please contact us if you have any further questions regarding the above. 

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Contact us

Jan Guiljam
Account Manager
t+31 113 74 43 02