Improving Hong Kong Street Waste Disposal Experience May 2019 | Page 72

Details - Cigarette Butt & Ash Component Details - Cigarette Butt & Ash Component From our interviews with garbage throw- ers, cigarette fumes is one of the biggest pain points across all non-smokers. During our desktop research, we discovered that plants, to be more specific air purifying plants like Peace Lily, Spider Plants and Chrysanthemums can reduce the smell from cigarettes. Therefore, one of the add on components we are proposing is an integrated cigarette butt and ash tray with plant pot on top. When the team started looking into how the plants can be fertilized, we found that, cigarette ash, residue of tobacco after burning, actually contains elements that are beneficial to the growth of plants and can be used as fertilizer. All we need to do is to add water and hydrochloric acid to the ash in order to adjust the pH value to neutral. 100 Design Change x Design Trust Plants Pebbles Ashes Soil Ashtray Design Change x Design Tr u st 101