![]() Portable hydraulic dredges are available in almost any size from remote control units to larger dredges that are assembled in sections. The preferred method for dredging a pond or lagoon is generally hydraulic dredging with subsequent dewatering of the sludge. The limiting factors are still the fact that you cannot use that pond or lagoon and that the sludge may not dewater fully with the method. Another option is to allow the pond or lagoon to dry out by taking it offline during a suitable time of the year with dry weather and allowing the solids to dry in place before being excavated. ![]() ![]() Berms to contain the solids or drying beds can be utilized but these methods are not very efficient. However, the biosolids typically contain a high percentage of water creating issues when handling them once they are excavated. Mechanical dredging can excavate the biosolids from the lagoon from the shoreline or even a barge mounted excavator. Dredging a wastewater pond or lagoon can be performed with multiple methods.
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