Mallam Osman: Sierra Leone Telegraph: 12 April 2023:
One of the development projects implemented by Yvonne Aki-Sawyer as Mayor of Freetown is the much-needed faecal sludge plant in Kingtom and Kolleh Town communities, which is now improving health and saving the lives of people in poor communities.
The sludge (sewerage) is treated using a process called ‘anaerobic digestion’. This heats the sludge up to high temperatures, encouraging the bacteria inside to break down the waste. This creates biogas that is burned to create heat, which in turn generates electricity.
Sludge from these communities is a mixture of organic matter from human waste, food waste particles, microorganisms, trace chemicals and inorganic solids from products and medicine we use, together with water bound to these materials.
Once treated, the sludge may be dried and added to a landfill, applied to agricultural cropland as fertilizer, or bagged with other materials and marketed as “biosolid compost” for use in agriculture and landscaping.
The public health benefits that this plant has brought to the communities of Kingtom and Kolleh Town include:
- Reducing the risk of local people coming into contact with faecal-borne pathogens by improving the functioning of onsite sanitation systems;
- minimizing the smell of faeces caused by the uncontrolled discharge of organic matter in overflowing tanks or pits; and
- reducing the indiscriminate disposal of collected faecal sludge.
Thanks to the hardwork and dedication of Yvonne Aki-Sawyerr, this vital health and sanitation project is ensuring that people living in the Kingtom and surrounding communites are no longer becoming sick and unwell because of contact with faecal waste.