Civil Servant Turned Inventor to Capture Odors... Ulsan City Patents 'Sewer Vent Pipe Odor Reduction Filter'

Job Invention During Civil Servant Research Group Project

Revolutionary Installation and Cost Reduction Draws Attention from Other Local Governments

Efforts to solve the odor problem encountered in the field of public service have led to an invention patent and are even predicting a 'blockbuster success.'

Ulsan City invented a product that reduces odors generated from sewage and obtained a patent. Two public officials who led the invention developed an 'odor reduction filter for vent pipes' that reduces odors generated from vent pipes that maintain smooth sewage flow during sewage pipe installation.

Ulsan City announced on the 16th that it obtained patent rights by registering the 'odor reduction filter for vent pipes,' a job invention conducted during the research of the task selected as the best public official research group in 2022, with the Korean Intellectual Property Office on the 4th (Registration No. 2519389, patent holder: Ulsan City).

The inventors are Taejin Choi, Administrative Officer of the Audit Office (Facilities), and Hyungsik Bae, Administrative Officer of the General Construction Headquarters (Facilities).

Until now, odor reduction facilities for sewage pipe vent pipes have generally been managed using activated carbon, which reduces odors by adsorbing odor substances.

This 'odor reduction filter for vent pipes' uses materials easily available on the market and filters odor substances at multiple stages like a water purifier filter by utilizing the propulsion pressure inside the sewage pipe. The biggest advantage is that it can be easily and inexpensively installed on any form of vent pipe.

As a result of pilot installation on sewage vent pipes throughout Yangjeong-dong, Buk-gu, and Dong-gu areas of Ulsan since last year, it has been confirmed that the filter's effective period lasts at least six months. There have been no odor complaint reports so far, indicating a significant odor reduction effect.

Compared to existing sewage odor reduction facilities, installation and maintenance costs have been drastically reduced, and securing intellectual property rights is expected to contribute to Ulsan City's finances if expanded to local governments nationwide.

Administrative Officer Taejin Choi said, "A small idea and deep consideration by public officials is an opportunity to change citizens' lives," adding, "We will continue research that citizens can feel."

Choi Tae-jin, Officer at Ulsan City.

Bae Hyung-sik, Officer of Ulsan City.

This content was produced with the assistance of AI translation services.