Buckhorn disinfection byproducts backwash disposal project
Download
1 / 14

Buckhorn Disinfection Byproducts / Backwash Disposal Project - PowerPoint PPT Presentation


  • 58 Views
  • Uploaded on

Buckhorn Disinfection Byproducts / Backwash Disposal Project. Board of Directors Meeting June 14, 2012. Presentation Outline. Project Purpose and Issues Backwash Management Strategies DBP Reduction Alts and Recommendations Recommended Phasing Plan. Project Purpose and Issues.

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Buckhorn Disinfection Byproducts / Backwash Disposal Project' - alec-ingram


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Buckhorn disinfection byproducts backwash disposal project

Buckhorn Disinfection Byproducts / Backwash Disposal Project

Board of Directors MeetingJune 14, 2012


Presentation outline
Presentation Outline

Project Purpose and Issues

Backwash Management Strategies

DBP Reduction Alts and Recommendations

Recommended Phasing Plan


Project purpose and issues
Project Purpose and Issues

  • Project Purpose:

    • Assure Compliance with Stage 2 Disinfection Byproduct (DBP) Rule (a)& Develop An Integrated Backwash Management Strategy

  • Key Project Issues:

    • Elevated DBPs in the Buckhorn WTP Distribution System

    • Insufficient Pond 7 Storage Capacity for Backwash Waste Water Disposal

(a) Effective October 1, 2013.


Backwash water management strategies for the buckhorn wtp
Backwash Water Management Strategies for the Buckhorn WTP

  • Expand Pond 7 to Contain 100-Yr Storm Event per WDR

  • Remove Solids at WTP to allow Recycle to WTP and/or Discharge Treated Backwash Water (BWW) to Pond 7

    • No WDR Required

  • Select Best Long-Term and Most Cost Effective Backwash WaterManagement Strategy




Potential site layout
Potential Site Layout

Recommended DeskinsTM System (Solids Removal and Dewatering)


Stage 2 dbr rule compliance historical tthm haa5 results
Stage 2 DBR Rule ComplianceHistorical TTHM/HAA5 Results


Dbp removal strategies
DBP Removal Strategies

  • TOC Removal

    • Coagulation/Filtration

    • Adsorption

    • Oxidation

  • Reduce Chlorine Dose

    • Maintain Disinfection CT

    • Maintain Residual Disinfectant throughout System

  • Distribution System Modifications

    • Reduce Water Age

    • Tank Materials





Recommended phasing plan
Recommended Phasing Plan

Goal: ACH feed system operational Summer 2013; highest DBP concentrations have historically occurred during summer seasona

a First set of Stage 2 DBP compliance testing to be conducted prior to October 1, 2013

b Testing conducted by Agency operators and staff