SNF provides customers with sound solutions for the remediation and reclamation of contaminated and non-contaminated sediments.  This can take place with any waterway, or any municipal or industrial lagoon.

With an extensive range of polymers, preparation and dosing equipment manufactured in-house, and a well-seasoned team of application specialists, SNF Environmental offers a comprehensive range of unique capabilities and resources that no other polymer supplier in the industry can provide.  Regardless of the industry or duration of the project, SNF Environmental can design a program that will best suit your needs.

SNF polymers are sold and marketed extensively in municipal and industrial wastewater treatment applications worldwide.  Many of these same SNF polymers are also used by dredging contractors for enhanced solids-liquids separation of dredged sediments in order to reduce sludge volumes that must be reclaimed or disposed of.  In doing so, settling, thickening, and dewatering times can be significantly reduced versus using large land areas for ponds.


Sedimentación/espesamiento de sedimentos de dragado para obtener un agua de rebosadero cristalina al inyectar polímeros:

  • Directamente a las dragas-gánguil, para mejorar la tasa de sedimentación del material y aportar claridad al agua de rebose para su descarga
  • Previo a las balsas de decantación: con una mejor tasa de sedimentación y de captura de sólidos se necesita una menor extensión de terreno y de balsas, y se obtiene un agua de rebose más clara para su reutilización o descarga


Dewatering of dredged or pre-thickened dredged sediments in order to produce friable cake solids capable of being reclaimed or disposed of.  Some of the common dewatering methods used in dewatering dredge sediments with the aid of SNF polymers, equipment, and service are:

  • Tubos de geotextil
  • Centrífugas
  • Filtros banda
  • Filtros prensa de placas y marcos
  • Tornillos deshidratadores


SNF’s proposal is a change from the traditional lagooning process for dredged sediments from port construction or waterways dredging projects.  Typically after many years of natural drying in upland or nearshore containment ponds or lagoons, the resulting dried sediment is heterogeneous.

Sin embargo, tras inyectar los polímeros de SNF antes de la sedimentación y espesado en una balsa o laguna de contención, en solo 6 meses de deshidratación los flóculos homogéneos, formados de arena y partículas finas, producen valiosos suelos o sólidos deshidratados.

Our process means that less acreage is required for settling areas, and land can be re-used after only 6 months.  It is a cost-effective alternative, as there is less capital investment needed, and our process is less expensive overall to operate than conventional sediment settling and disposal on a total cost basis.

Sedimentos Contaminados

Los polímeros de SNF potencian la deshidratación de los sedimentos contaminados, resultando en un agua de descarga más limpia, así como en un volumen reducido de sólidos para su transporte y desecho en vertederos de residuos peligrosos autorizados.


  • Análisis de los objetivos del proyecto y del plan de tratamiento
  • Selección y suministro de polímeros
  • Diseño y suministro de equipos de elaboración
  • Iniciación en terreno
  • Asistencia técnica en terreno