Wastewater Treatment Plant Improvements

Bristol, Rhode Island
wastewater treatment plant bristol

Having last upgraded its wastewater treatment plant in 1986, the Town of Bristol received $5.7M from SRF funding to facilitate upgrades to it’s wastewater treatment plant. BETA worked with the Town to complete the following improvements.

Headworks

  • Replacement of two grit removal blowers with variable speed drive units

Preliminary Treatment

  • Replacement of three primary sludge pumps, piping and appurtenances and incorporation of variable speed drives and controls.
  • Replacement of two primary clarifier longitudinal drives
  • Demolition of a tri output primary clarifier longitudinal collector and cross collector drive and replacement with two primary clarifier longitudinal drives and a cross collector drive
  • Replacement of  four longitudinal sludge collector mechanisms
  • Replacement of four scum collector troughs
  • Replacement of scum pit mixer, pump, piping and controls

Rotating Biological Contactors

  • Replacement/upgrade of rotating biological contactor drives, electrical wiring and control systems
  • Replacement of the influent and effluent weirs

Secondary Clarifiers

  • Replacement of two secondary clarifier mechanisms, drives and controls
  • Replacement of the baffle, launder and weirs
  • Demolition and replacement of the influent manhole concrete top slab
  • Installation of a weir washing system
  • Replacement of two influent and two effluent sluice gates
  • Replacement of scum pit mixer, pump, piping and controls
  • Replacement of the two secondary sludge pumps, piping and appurtenances. The new sludge pumps incorporate variable speed drives and controls

Chlorine Contact Tank

  • Replacement of two scum collector troughs
  • Replacement of scum pit mixer, pump, piping and controls
  • Replacement of the sodium hypochlorite distribution piping, valves and supports

Belt Filter Press Building

  • Mechanical, electrical and I&C rehabilitation and improvements to two existing belt filter presses
  • Replacement of the roofing system
  • Replacement of the HVAC make up air units, ductwork and controls
  • Miscellaneous electrical system improvements

Miscellaneous

  • Replacement of a standby engine/generator including all related appurtenances, electrical, mechanical, instrumentation and control
  • The installation a new supervisory control and data acquisition system
  • Improvements to the site drainage system to alleviate surface water runoff into tankage

Project Management Team