TRI Pollution Prevention Report for WALBAR PEABODY LLC and Nitric acid

Facility ID: 01960TRBNC8FIFT

Facility Name and Address:
 WALBAR PEABODY LLC
8 FIFTH ST
PEABODY, MA 01960

Parent Company: RAYTHEON TECHNOLOGIES CORP

Industry: Aircraft Engine and Engine Parts Manufacturing (336412)
Chemical: Nitric acid

Production Related Waste Management for Selected Chemical

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    Waste Management Comparison - 2019



Pollution Prevention Activities for Selected Chemical

Reporting Year Section 8.10: Newly Implemented Source Reduction Activity Section 8.10: Methods to Identify Activity Section 8.11: Optional Pollution Prevention Information*
2020 Barriers: B6-Barriers to P2 B6 - Pollution prevention previously implemented - additional reduction does not appear technically or economically feas

Barriers to P2: B6 - Pollution prevention previously implemented - additional reduction does not appear technically or economically feas - Mechanical removal of coatings has reduced our dependence on nitric acid.Further reduction is not feasible at this time.
2019 Source Reduction:: W59: Modified stripping/cleaning equipment[-0-4%]

Methods to Identify SR Opportunities: T11: Other
Methods to Identify SR Opportunities: T04: Participative team management
W59: Increase grit blasting operations.

Source Reduction - Coating building participants increased mechanical stripping
Source Reduction - Mechanical stripping of parts
2018 Barriers: B6-Barriers to P2 B6 - Pollution prevention previously implemented - additional reduction does not appear technically or economically feas

Barriers to P2: B6 - Pollution prevention previously implemented - additional reduction does not appear technically or economically feas - Fume extraction was optimized to reduce evaporation of azeotropic nitric acid solution.
2017 Barriers: B6-Barriers to P2 B6 - Pollution prevention previously implemented - additional reduction does not appear technically or economically feas

Barriers to P2: B6 - Pollution prevention previously implemented - additional reduction does not appear technically or economically feas - Acid replenishment and acid recycle were both attempted and failed due to specific gravity changes to the product.
2016
Source Reduction: Source Reduction - Efforts to upgrade our chemical scrubber equipment and reduce overall emissions have taken place during the latter part of 2016. Expectations are that source reduction will be achieved for the 2017 reporting year.
2015 Source Reduction:: W14: Changed production schedule to minimize equipment and feedstock changeovers
Methods to Identify SR Opportunities: T05: Employee recommendation (independent of a formal company program)
Source Reduction - Operators reduced the hours of idle bath heating which led to a small reduction in nitric acid use.
2014 Source Reduction:: W50: Optimized reaction conditions or otherwise increased efficiency of synthesis
Methods to Identify SR Opportunities: T04: Participative team management
2013 Source Reduction:: W14: Changed production schedule to minimize equipment and feedstock changeovers
Methods to Identify SR Opportunities: T05: Employee recommendation (independent of a formal company program)
W14: Nitric acid bath is used until exhausted.

Source Reduction - Part cleanliness is used to determine when acid bath is no longer effective.
2012 Source Reduction:: W60: Changed to mechanical stripping/cleaning devices (from solvents or other
Methods to Identify SR Opportunities: T04: Participative team management
2011 Source Reduction:: W60: Changed to mechanical stripping/cleaning devices (from solvents or other
Methods to Identify SR Opportunities: T04: Participative team management
Barriers to P2 - Our efforts to recover nitric acid were not successful. An option we are using this year is to gritblast parts that do not appear to need acid stripping. This reduces the need to strip the parts in acid, and reduces our acid use.
2010 Source Reduction:: W60: Changed to mechanical stripping/cleaning devices (from solvents or other
Methods to Identify SR Opportunities: T04: Participative team management
Source Reduction - Grit blasting has been used in place of some of our acid stripping operations. Our customer satisfaction with this process will determine if if it will be used as a permanent change. Otherwise our acid use will increase with expected increase in production requirements.
2009 Source Reduction:: W49: Other raw material modifications
Methods to Identify SR Opportunities: T01: Internal pollution prevention opportunity audit(s)
*Classifications of Optional Pollution Prevention Information shown in brackets are provided by EPA.

TRI Pollution Prevention Glossary

The Waste Management Hierarchy

 The waste management hierarchy established by the Pollution Prevention Act (PPA) guides waste generators toward the best options for managing wastes. The preferred option is to prevent pollution at its source, but for waste that is generated, the preferred management methods are recycling, followed by burning for energy recovery, treatment and, as a last resort, disposing of the waste.
  • Source Reduction includes activities that eliminate or reduce the generation of chemical waste.
  • Recycling includes the recovery of a toxic chemical in waste for reuse.
  • Energy Recovery includes the combustion of toxic chemicals in waste to generate heat or electricity.
  • Treatment includes the destruction of a toxic chemical in waste.
  • Disposal or Other Releases includes toxic chemical quantities entering the environment.
The PPA requires facilities to provide the following details about each chemical they report to TRI:
Facilities may also provide optional Pollution Prevention Information describing their source reduction, recycling, or pollution control activities.