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* |
|---|---|---|---|
| 2021 |
Source Reduction:: S22: Instituted recirculation within a process[-0-4%]
|
Methods to Identify SR Opportunities: T04: Participative team management
|
S22: Opened and previously closed recirculation valve to return nitric fumes from a chilled pre-scrubber to the reactor that the nitric acid is added to. Source Reduction - EHS observed levels in an overflo tank that were high and a meeting revealed the opportunity to recirculate the acid |
| 2019 |
Source Reduction:: W89: Other product modifications[-0-4%]
|
Methods to Identify SR Opportunities: T03: Materials balance audits
|
W89: Increased focus on COGS, resulting in reduced production of powders for sale on the market. Instead powders produced to feed Flake operations. |
| 2018 |
Barriers: B1-Barriers to P2 B1 - Insufficient capital to install new source reduction equipment or implement new source reduction activities/initiat
|
Barriers to P2: B1 - Insufficient capital to install new source reduction equipment or implement new source reduction activities/initiat - Equipment upgrade for this process is planned in 2020. |
|
| 2017 |
Barriers: B7-Barriers to P2 B7 - No known substitutes or alternative technologies.
|
Barriers to P2: B7 - No known substitutes or alternative technologies. - Nitric acid is used in production of silver powder. |
|
| 2015 |
Source Reduction:: W50: Optimized reaction conditions or otherwise increased efficiency of synthesis
|
Methods to Identify SR Opportunities: T04: Participative team management
|
W50: Increase the conversion rate of Silver to Silver Nitrate to effectively use less Nitric Acid |
| 2012 | Source Reduction - Usage increased as powder production increased, however, it was used more efficiently due to the production of a powder with a higher yield per batch. |
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.
|
- A breakdown of production-related waste managed. This includes all amounts of the chemical released directly to the environment or otherwise managed as waste, other than waste generated by one-time events not associated with normal production processes (e.g., fires or remedial actions).
- A production ratio or activity index to provide context for reported toxic chemical quantities. For example, if a chemical is used in the manufacture of refrigerators, the production index would track the number of refrigerators produced and could be used to help gauge how much of the chemical is being released per unit of production.
- Any newly implemented source reduction activities, reported using "W-codes" (e.g., "W41: Increased purity of raw materials")