ViewPoint France
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info@toxmate.fr

GreenSludge

Water quality biomonitoring

Method for rapid assessment of the ecotoxicity
of sewage sludge on earthworms





Le traitement des eaux usées génère la production de boues. Plus le traitement est efficace, plus les STEP Urbaines (STEU) produisent des boues.

Source : IDEA du Coeur du Hainaut



Ces boues peuvent être valorisées ou éliminées.

Les méthodes de recyclage les plus utilisées sont l’épandage agricole ou le compostage.


Si les boues d’épuration sont riches en éléments nutritifs et en matière organique utiles à l’amendement des sols agricoles, elles peuvent aussi contenir des composants plus nocifs, en fonction de leur concentration : des ETM (éléments traces métalliques), des micropolluants organiques, des micro-organismes pathogènes ou des substances médicamenteuses.

In order to preserve good soil quality, French regulations require the implementation of new measures by October 2021. These are additional controls on sewage sludge, prior to its recovery by composting or agricultural spreading in particular.

Among the possible tests is the evaluation of the ecotoxicity of sludge on earthworm reproduction. However, these tests require long lead times, in the order of a month, while water managers have storage capacity limited to a few days

In addition, some communities have embarked on a policy of increasing sludge recovery, making for a delicate context.

échantillonnage boue
ver de terre

Our solution: GreenSludge

ViewPoint has developed a fast assessment method for earthworms.
From its automated behavioral analysis, GreenSludge provides the ecotoxic score of the sample within 24 to 48 hours after receipt at the laboratory.

Contact us should you have any more questions 

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