Kumasi scientist invents new waste segregation bin.
A Ghanaian scientist and inventor, Mr. Osei Bonsu, has invented a waste segregation bin to address the challenges that confront sanitation management in the country.
Waste segregation is the collection of different types of wastes in separate bins in a pure and clean state that makes recycling possible, and it is estimated to generate about GHS2 billion annually and also create five million jobs across the country.
One aspect of the waste bin which makes it a novelty is that any waste in any of the compartments is visible from outside to enable people know where to put various refuse even with little or no public education.
The new public waste segregation bin is made of a metal frame covered with iron gauze, which is divided into compartments in which hang transparent or net bags for collecting the different types of wastes.
And to prevent or discourage the dumping of bulky domestic waste into public bins, the entrances of the novel public segregation bins are so narrow that only small litter, such as polythene bags and cans that are normally generated in public places, can enter.
Mr. Bonsu, who is a Soviet trained agronomist and a researcher, formerly with the Crop Research Institute, said about 70 percent of domestic waste generated in Ghana is degradable organic waste which can be turned into organic fertiliser for gardening or commercial farming, thereby minimising the sanitation challenges.
He has also invented two other waste composters, which are the Paved and the Unpaved Ground composters, for homes which might be interested in turning their organic wastes into compost fertiliser to discourage the indiscriminate dumping of waste.
Last Tuesday, Mr. Bonsu, took some journalists round Kwamo in the Ejisu Municipality, where the project is being piloted, and explained that Ghana would require about 5 million sets of waste segregation bins, or 20 million separate waste bins at the cost of GHS5 billion and GHS700 million respectively, to implement waste segregation nationwide.
The 1995 Best National Agricultural Research Award Winner stated that the normal plastic waste bins have a lifespan of about seven years, compared to the newly invented bin, which can last over 15 years, and is seven times cheaper.
Already, the project is impacting positively, as over 30 of the segregation bins have been placed at vantage points at Kwamo, near Ejisu, on a pilot basis.
Mr. Bonsu lamented that there is no alternative to waste segregation if we really care about the future of the country, as the landfill sites would soon be exhausted.
He expressed his appreciation to the Kwamohene for his personal support towards the project, and appealed to the Kumasi Metropolitan Assembly (KMA), which expressed interest in the project, to support him for the mass production and distribution of the new waste bins.