That's an excellent question, and one that's crucial for maintaining pleasant public spaces. Yes, there are definitely specialized odor-neutralizing liners and systems designed specifically for high-traffic public waste bins. The standard plastic bag simply isn't enough for the volume and variety of waste they collect.
For liners, you'll find options infused with baking soda or activated carbon. These work by absorbing and trapping odor molecules before they escape into the air. They are a great first line of defense. For more heavy-duty needs, there are integrated deodorizing systems. These can be cartridge-based systems that clip inside the bin lid, releasing a continuous, subtle neutralizer. Another popular option is the use of specialized bin liners that have a stronger, time-released odor counteractant sealed within the plastic polymer itself.
Furthermore, many modern public bin designs incorporate built-in solutions. These might include sealed inner compartments, charcoal filter vents in the lid to allow for airflow while trapping smells, or even systems that use natural mineral compounds to eliminate odors at a molecular level rather than just masking them. The key for public settings is finding a solution that is long-lasting, effective against diverse odors, and safe for the environment and public health. Facility managers often opt for a combination of a quality infused liner and a supplementary cartridge system for the most challenging locations like transit hubs or parks.