Improving the capacity and safety of the Turkey Creek WWTP, BBI ...

• Wastewater

Improving the capacity and safety of the Turkey Creek WWTP, BBI provided the City of Houston with professional engineering services.  BBI expanded the wet weather peak capacity of Turkey Creek Wastewater Treatment Plant from 42 MGD to 60 MGD and provided upgrades for improved operations and safety of the plant. 

The major improvements for the plant included:

• addition of a new 120-ft diameter final clarifier with expansions of MLSS and RAS channels
• upgrade of the existing aeration system with addition of two 400-hp centrifugal blowers with dissolved oxygen (D.O.) instrumentation and PLC controls
• refurbishing the existing blowers and replacing control panels with added vibration and temperature sensors to improve blower operation efficiency and safety
• replacement of the existing sodium hypochlorite concrete storage tank system with a new chemical feed system which consists of two 6,500-gallon storage tanks
• chemical feed pumps with all associated appurtenances and automatic feed control system
• addition of new chlorine contact basins with sample pumps and chlorine analyzers
• installation of a new Supervisory Control and Data Acquisition (SCADA) for remote monitoring and control
• installation of a new Odor Control system to replace the existing chemical scrubber.

Improving plant operation safety and efficiency while adding safety instrumentation and controls, BBI rehabilitated their original design of the 69th Street WWTP after a devasting fire.

• Wastewater

Providing the City of Houston with engineering services on the 69th Street Wastewater Treatment Plant after a fire incident, BBI rehabilitated the existing Sludge Dryer Unit No. 3, adding safety instrumentation and controls that improved the overall plant operation safety and efficiency. 

Overall project scope included:

• Replacement of the existing gas burner with a low-NOx burner and furnace apparatus
• Improvements for the sludge processing equipment, including centrifuge belt, centrifuge vent, mixer, furnace (air heater), dry material handling equipment
• Modification of the structure around these components to accommodate the changes
• Replacement of electrical, instrumentation and control systems for the Dryer.

The original dryer unit utilized manual adjustments of wet material feed and the dry product return for blending to produce a moist crumby mixture for drying.  As part of the rehabilitation and improvements, BBI redesigned the solids feed mechanism by adding wet and dry holding tanks along with an automatic feed system from each tank to facilitate proportional feed controls from each tank. The redesigned proportional feed system reduced fuel consumption and thus improved dryer efficiency.  Other improvements included installation of a crusher to reduce oversized products, and adding variable speed drives (VFD) for all the dry product return conveyors to make the solids conveying system more reliable.  Additional safety instrumentation and controls were also added to improve plant operation safety and efficiency.

Located behind a floodwall, the Sims Bayou WWTP was submerged during a tropical storm.

• Wastewater

Binkley & Barfield, Inc. contracted with the City of Houston to provide professional engineering services for upgrading the existing electrical infrastructure and to replace the electrical facilities and control systems that were damaged during a devastating flood event.

BBI designed:

• New Electrical Buildings and control platforms elevated above the 100-year floodplain.
• New motor control centers
• New PLC/SCADA systems were installed in the elevated Electrical Buildings
• Field control panels for the Headwork, Clarifiers, and pump stations were replaced and installed on elevated Control Platforms.
• The 12.4-KV Unit Substation was replaced and installed on an elevated structure.

 The BBI Mechanical, Electrical, & Plumbing Team of Professionals provided:

• Preliminary study and design
• Alternative design and analysis
• Final design (plans and specification)
• Pre-qualification of equipment
• Construction phase services

BBI provided wastewater engineering services that improved operations and safety while upgrading the Kingwood West Wastewater Treatment Plant.

• Wastewater

Achieving the maximum treatment capacity that is practical on the existing site while providing miscellaneous upgrades for improved operations and safety, called for the expertise and experience of the BBI team. We provided professional engineering services for the expansion of the City of Houston Kingwood West Wastewater Treatment Plant (formerly known as Montgomery County Municipal Utility District No. 48).   

The scope of the current phase is to upgrade the existing municipal utility plant to a 2 million-gallons-per-day (MGD) wastewater treatment plant, and the ultimate plan is to build a regional wastewater treatment plant that can handle approximately 12 MGD average daily flow (ADF) and a peak wet weather flow up to approximately 50 MGD.

The current improvements included:

• upgrading all four (4) influent pumps with variable frequency drives (VFD) to handle the 8 MGD peak flow
• installation of a new Headwork facility with an internally fed rotary screen and provisions for a future aerated grit removal basin
• replacing the existing blowers with three (3) multistage centrifugal blowers with VFD controls based on a D.O. instrumentation and PLC control system
• construction of new aeration basins with installation of fine bubble diffusers and mechanical mixers in the channels and basins to promote better mixing and higher oxygen transfer efficiency
• construction of two (2) 65-foot octagonal clarifiers
• installation of an automatic backwash cloth-media filter
• construction of new chlorine contact basins with a new chemical feed system operated on dual gravity feed control and metering pump systems
• conversion of the existing aeration basin and digester to a two-stage digester system
• addition of a new Administration Building equipped with new PLC control system, supervisory control, and data acquisition (SCADA) for remote monitoring and process controls.

BBI Wastewater Engineering Services Provided:

• Alternative Analysis
• Preliminary Engineering Report
• Final Design, Plans & Specifications
• Equipment Pre-qualification
• Basic Construction Phase Services
• Construction Management

Providing environmental protection to trees, erosion, and sedimentation controls, BBI assists....

• Wastewater

Providing environmental protection to trees, erosion, and sedimentation controls, BBI design experts assist the City of Austin's Clean Water Program (ACWP).  The two phase project provides residents of South Austin sanitary sewer lines without harming their natural setting. 

The South Phase BBI provided:

• Design and installation of approximately 3430 LF of 18" and 3025 LF of 8" wastewater lines and appurtenances.
• Open cut with some boring an jacking construction.
• ting, extensive tree protection, erosion and sedimentation controls.
• Traffic control and pavement repair.
• Construction Phase Services

The North Phase BBI provided:

• Tunnelling and some open cut construction of sanitary sewer lines.
• Permitting, extensive tree protection, erosion and sedimentation controls.
• Traffic control and pavement repair.
• Construction Phase Services.