Wastewater Treatment Improvements, City of Marshall, Minnesota

Wastewater Treatment Improvements

Location
Icon of City of Marshall, Minnesota

City of Marshall, Minnesota

Overview

The pretreatment facilities successfully achieved the reduction in CBOD and TSS parameters required by the city’s wastewater treatment facility.

Solutions
Sectors
The City of Marshall has used Bolton & Menk as their trusted wastewater consultant for more than 15 years. Throughout that time, we have studied and developed many projects for the city’s wastewater treatment facility and the community’s significant industry, Schwan’s Foods.

Bolton & Menk prepared a wastewater pretreatment study for Schwan’s Foods to assist with pretreatment and reduce loads to the city’s wastewater treatment facility. The study recommended that pretreatment facilities (screening, flow equalization, dissolved air flotation, chemical feed system, float material, storage facilities, etc.) be constructed. The recommendations were approved, and the pretreatment facilities were constructed. The pretreatment facilities successfully achieved the reduction in CBOD and TSS parameters required by the city’s wastewater treatment facility.

Additionally, Bolton & Menk recently completed a significant design upgrade for the wastewater treatment facility consisting of liquid process improvements for biological treatment as well as a large biosolids handling upgrade including pumping, gravity thickening, and mixing to help the city more cost effectively manage their biosolids program. The City of Marshall produces a Class A biosolids from their ATAD treatment system, also designed by Bolton & Menk approximately 10 years ago.

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