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Project Experience - Water Plants


East Water Purification Plant Sludge Handling Facilites Expansion

CLIENT: City of Houston, Texas

CONTRACT TYPE: Sub-Contract to Turner Collie & Braden, Inc.

PROJECT DESCRIPTION: The project includes expansion of existing Sludge Handling Facilities to treat sludge associated with 350 mgd treatment capacity. The improvements included addition of Filter Backwash Wastewater Surge Basins, Solids Contact Clarifiers, Centrifuges and related pumping systems.

YEAR COMPLETED: Ongoing

CONSTRUCTION COST: $2.5 million (Estimated KGI's Portion of the Project). Total project cost is estimated at $25 million.

SCOPE OF WORK: KGI was responsible for performing the process and mechanical tasks for the following portions of the project:

  • Filter Backwash Wastewater Surge Basin Transfer Pumps for Plants 1 & 2 consisting of four 1,500 gpm centrifugal self-priming pumps. The pumps transfer from Surge Basins to Solids Contact Clarifiers.
  • Filter Backwash Wastewater Surge Basin Recycle Pumps for Plants 1 & 2 consisting of three 200 gpm centrifugal self-priming pumps. The pumps recycle sludge in the Surge Basins or transfer from Surge Basin to Thickeners.
  • Filter Backwash Wastewater Surge Basin Transfer Pumps for Plant 3 consisting of four 1,500 gpm vertical turbine solids handling pumps. The pumps transfer from
    Surge Basins to Solids Contact Clarifiers.
  • Sedimentation Sludge Transfer Pumps for Plants 1 & 2 consisting of three 1,215
    gpm dry pit vertical centrifugal pumps. The pumps transfer sludge from SedimentationBasins to Thickeners.

In addition, KGI is studying UV treatment of recycle streams (such as overflow
from Solids Contact Clarifier and Thickeners) to meet future EPA regulations.

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