That's an excellent and very practical question. Yes, you absolutely can get a locking mechanism for an urban or commercial trash bin that uses a standard key. This is a common solution for businesses, apartment complexes, and public spaces to control access, prevent illegal dumping, and secure valuable recyclables.
Most manufacturers of commercial-grade waste containers offer locking systems as an accessory or integrated feature. The most straightforward type is a hasp and staple style lock, where a metal loop (staple) is mounted on the bin lid and a hinged plate (hasp) is on the body. You simply close the hasp over the staple and secure it with a padlock that uses your standard key. For a more integrated look, there are also locking bars or rods that span the front of the bin, engaging with slots on the lid, operated by a cylinder lock.
The term "standard key" usually refers to locks keyed to common commercial keyways, like those used in utility or industrial settings. You can often request that the padlock or cylinder be keyed to match your existing building or facility keys, eliminating the need to carry a separate keychain. This provides both security and convenience. When sourcing one, ensure the lock and hardware are made of durable, weather-resistant materials like stainless steel or coated heavy-gauge steel to withstand outdoor conditions and attempted tampering.