biosolids management program & environmental · pdf file 2016-2017 biosolids-annual...

Click here to load reader

Post on 30-Jul-2020

0 views

Category:

Documents

0 download

Embed Size (px)

TRANSCRIPT

  • BIOSOLIDS MANAGEMENT PROGRAM & ENVIRONMENTAL MANAGEMENT SYSTEM (EMS)

    ANNUAL PERFORMANCE REPORT

    August 1, 2016 — July 31, 2017

    Village Creek Water Reclamation Facility

  • 2016-2017 Biosolids-Annual Performance Report

    Issue Date: October 3, 2017 Page 2 of 26

    TABLE OF CONTENTS

    INTRODUCTION ............................................................................................................................... 3

    PROGRAM SUMMARY ..................................................................................................................... 3

    Beneficial Reuse and Disposal .................................................................................................... 3

    Audits .......................................................................................................................................... 4

    Public Outreach ........................................................................................................................... 5

    BIOSOLIDS MANAGEMENT PROGRAM ........................................................................................... 6

    Biosolids Production ................................................................................................................... 6

    Beneficial Reuse Options and Management Practices ............................................................... 6

    Contractor Performance ............................................................................................................. 7

    City Oversight/Inspections .......................................................................................................... 8

    Monitoring and Measurement ................................................................................................... 8

    ENVIRONMENTAL MANAGEMENT SYSTEM (EMS) ....................................................................... 11

    National Biosolids Partnership (NBP) ....................................................................................... 11

    Timeline..................................................................................................................................... 11

    Goals and Objectives ................................................................................................................. 12

    Corrective Action Notices (CANs) ............................................................................................. 12

    LEGAL REQUIREMENTS ................................................................................................................. 12

    SPILLS, EMERGENCY ACTIONS, AND RESPONSE ........................................................................... 12

    PUBLIC OUTREACH AND PARTICIPATION PROGRAM ................................................................... 13

    FUTURE PLANT/ADVANCES IN BIOSOLIDS TECHNOLOGY ............................................................ 14

    CONTACT INFORMATION .............................................................................................................. 14

    APPENDIX A: CORRECTIVE ACTION NOTICES 2016-2017 ............................................................. 15

    APPENDIX B: CURRENT GOALS AND OBJECTIVES ......................................................................... 19

  • 2016-2017 Biosolids-Annual Performance Report

    Issue Date: October 3, 2017 Page 3 of 26

    INTRODUCTION The City of Fort Worth’s biosolids program is a public/private partnership where the contractor, Renda Environmental, Inc. (REI), is responsible for processing, dewatering, transporting and performing beneficial land application of biosolids produced from the Village Creek Water Reclamation Facility (VCWRF). REI is under contract to provide these services until March 31, 2020. Annual Performance Report (APR) This APR summarizes Fort Worth’s biosolids management program performance, biosolids production and reuse, goals and objectives, EMS activities, public outreach, and the commitment towards continual improvement. This report and other biosolids information on operations and activities are detailed on the City’s website. PROGRAM SUMMARY The following information summarizes the breadth of the biosolids program and its environmental management system. During fiscal year 2017, the biosolids program, which consists of biosolids handling and beneficial use, utilized approximately 31% of the total wastewater budget. The projected water reclamation and reuse budget totals for fiscal year 2018 had not been announced at the time of this report.

    Beneficial Reuse and Disposal During the past reporting year (August 1, 2016-July 31, 2017), the City of Fort Worth’s Biosolids Program beneficially reused and recycled 99.54% (excluding lime) of its Class AB biosolids and landfilled 0.46%. This is a great improvement from the last reporting year that saw 80.35% land applied and 19.65% landfilled. Goals and Objectives Every quarter, goals and objectives for the biosolids program are updated. During the reporting year, the biosolids program has been making progress towards 5 goals. These goals include:

     Increasing digested feed sludge to 5% o The purpose of this goal was to look into new thickening technology that

    could replace the Dissolved Air Flotation Thickeners (DAFTs). In April 2017, the scope of the thickening project associated with this goal changed to include improvements to the Gravity Belt Thickeners (GBTs) and replacing the Gravity Thickeners. It is estimated that by the end of 2018, the final design phase for this project will be completed with construction slated to being in spring of 2019.

     Increasing percent solids of biosolids (prior to lime addition) by 3% o This goal was created in December 2014 during a year the biosolids

    program was experiencing dewatering and odor issues and after the ferric chloride system was brought online to mitigate these issues. The average percent solids for biosolids (prior to lime addition) for 2014 was

  • 2016-2017 Biosolids-Annual Performance Report

    Issue Date: October 3, 2017 Page 4 of 26

    15.25%. In 2015 and 2016, the effectiveness of the ferric chloride addition (along with chlorine dioxide) was apparent when percent solids increased to 16.90% and 17.10% respectively. As dosage optimization for ferric chloride was completed in June 2016, additional action plans were added to this goal to further increase the percent solids of the biosolids (prior to lime addition). Optimization for a 6th belt press and new polymer system that were constructed in January 2017 is ongoing. In addition, the replacement/refurbishment of the original 5 belt presses is slated to begin in late spring and summer of 2018.

     Increasing biosolids storage capacity from 1.3MG to 6.3 MG o This goal was developed in June 2015 and has since undergone changes.

    Currently, the consultant is still working towards completing the final design stage for the storage tank project. Increased storage capacity will allow for more flexibility during inclement weather and operational and maintenance situations. This, in effect, will help improve biosolids management practices.

     Identifying four public concerns regarding biosolids o This goal was developed in September 2015. The four public concerns

    were identified early on and several action plans were added in an effort to continue to identify concerns regarding biosolids. On September23, 2017 the Fort Worth Water Department made the first post relating to biosolids on its Facebook page. Efforts are ongoing to post more information to social media and the City’s webpages. In 2018, it is hoped that two educational videos can be developed for biosolids public outreach efforts.

     Reducing the amount of lime (tons) used per month by 50% o In late 2016, chlorine dioxide was formally approved to be used for

    improving odor performance of the biosolids as well as eliminating pathogens. The addition of chlorine dioxide (working in tandem with ferric chloride) has improved odors as well as increased percent solids of the biosolids. Improved Chlorine dioxide mixing in sludge tank #1 along with improved piping was completed in September 2017. Improved performance will hopefully allow for a reduction in lime usage (which is currently used for pathogen control) next year. Lime has long been a constituent of biosolids odors and the ability to reduce lime dosage will improve the odor performance of the biosolids and increase environmental performance.

    Audits Personnel at VCWRF conducted an internal audit on August 24th, 30th and 31st, 2017. Overall, odor performance continues to be a top priority for the Fort Worth Biosolids Program. The ferric chloride and chlorine dioxide systems have proven to be effective at minimizing odors. However, dosing stations associated with both systems have experienced operational and maintenance related issues over the past year. The internal audit found one minor

  • 2016-2017 Biosolids-Annual Performance Report

    Issue Date: October 3, 2017 Page 5 of 26

    nonconformance. This minor nonconformance concerns the ferric chloride system operation and maintenance issues, which have caused odor performance of the biosolids to suffer on occasion. This issue will need to be formally addressed with a CAN. The third-party EMS external audit that was held on August 8th-11th, 20