Changes

==Construction, operations and maintenance==

For the rural stand-alone treatment plants (decentralised plants), the type of technology employed has a marked effect on the sustainability of the treatment scheme. The tendency is more towards low-tech technologies requiring minimal operation and maintenance inputs. The reason is the lack of skilled and trained personnel to operate and maintain the plant, poor access roads in the deep rural areas hampering delivery of chemicals and equipment, and management challenges resulting from the remoteness of these rural plants.