Symphony Lake Dredging Project – 2024 

Merrell Bros. is on the of the largest National Biosolid Management Companies in the United States, helping municipalities, industries, cities, and agricultural operations successfully manage biosolids and residuals since 1982We are dedicated to environmentally sound, agriculturally oriented, State and Federally approved methods of Biosolids ManagementWe make every effort to build a reputation based on honesty, integrity, and professionalism.

Project Overview

Where: Symphony Lake, Cary, NC 

Project Timeline: January 29 – April 29 

Who: H.G. Reynolds & The Town of Cary 

What is Dredging and why are they doing this?

Merrell Bros will perform both Mechanical & Hydraulic Dredging to remove sediment from the lakeGiven the density and sediment characteristics, the sediment will be excavated with a very innovative floating barge system

After mechanical dredging is complete, Merrell Bros will remove the remaining residuals using a hydraulic dredgeThis is a process your kids will love to see in action.

Dredging a lake plays a vital role in maintaining ecological balance, ensuring proper water management, and supporting various human interactions and activities. It addresses issues related to sedimentation, erosion, water quality, and infrastructure maintenance, contributing to the overall health and sustainability of the lake ecosystem.  

What is Belt Press Dewatering? 

Dewatering biosolids is a process that involves removing excess water from the sludge or solid byproduct withdrawn from Symphony Lake during the dredging process. Biosolids are the organic materials remaining after the excess what has been removed. The dewatering process is essential for reducing the volume and moisture content of biosolids, making them more manageable, transportable, and environmentally sustainable. Merrell Bros will be using the Belt Press dewatering process designed to separate water from the solid components of biosolids.

The key objectives of dewatering biosolids include: 

Environmental Benefits: Dewatering contributes to environmental sustainability by minimizing the environmental footprint associated with the handling and disposal of biosolids. It helps in complying with regulations and promoting responsible wastewater management practices. 

Resource Recovery: Dewatered biosolids, once processed, can be used as a valuable resource. They are often reused as fertilizers in agriculture due to their nutrient-rich content. This recycling aspect contributes to a circular economy approach, turning waste into a beneficial product. 

In summary, dewatering biosolids is a critical step in the overall wastewater treatment process. It enhances the efficiency of biosolid management, reduces environmental impact, and allows for the responsible reuse or disposal of the treated materials.