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[[Image:Icon_sedimentation_thickening_ponds.png |right|95px]]
'''Sedimentation or Thickening Ponds are simple settling ponds that allow the sludge to thicken and dewater. The effluent is removed and treated, while the thickened sludge can be treated in a subsequent technology.'''
The thickened sludge must be removed mechanically (front end loader or specialized equipment) when the sludge has thickened sufficiently.
==AcknowledgementsReferences=={{:Acknowledgements Sanitation}}
==References * Heinss, U., Larmie, SA. and external links==Strauss, M. (1999). [http://www.sswm.info/sites/default/files/reference_attachments/HEINSS%20et%20al%201994%20Characteristics%20of%20Faecal%20Sludges%20and%20their%20Solids-Liquid%20Seperation.pdf Characteristics of Faecal Sludges and their Solids-Liquid Separation]. Eawag/[http://www.sandec.ch Sandec] Report, Dübendorf, Switzerland.
* Heinss, U., Larmie, SA. and Strauss, M. (19991998). Characteristics [http://www.sswm.info/sites/default/files/reference_attachments/HEINSS%201998%20Solids%20Separation%20and%20Pond%20Systems%20For%20the%20Treatment%20of%20Faecal%20Sludges%20In%20the%20Tropics.pdf Solids Separation and Pond Systems for the Treatment of Faecal Sludges in the Tropics-Lessons Learnt and their Solids-Liquid SeparationReccomendations for Preliminary Design]. Second Edition. Eawag/Sandec Report, Dübendorf, Switzerland. Available: [http://www.sandec.chSandec] Report 05/98, Dübendorf, Switzerland.
* HeinssMontangero, U., Larmie, SAA. and Strauss, M. (19982002). Solids Separation and Pond Systems for the Faecal Sludge Treatment of Faecal Sludges in the Tropics-Lessons Learnt and Reccomendations for Preliminary Design. Second Edition. Eawag/Sandec Report 05/98, DübendorfLecture Notes, SwitzerlandIHE Delft. Available: [http://www.sandecsswm.info/sites/default/files/reference_attachments/EAWAG%20SANDEC%202008%20Module%205%20FSM%20Lecture.pdf Faecal Sludge Management].ch
* Montangero, A. and Strauss, M. (2002). Faecal Sludge Treatment. Lecture Notes, IHE Delft. Available==Acknowledgements=={{: http://www.sandec.chAcknowledgements Sanitation}}