The concept of 'Sanitation' is a comprehensive one including effective management (collection, treatment and disposal/recovery, reuse or recycling) of human waste, solid waste (including biodegradable and non-biodegradable refuse/trash/rubbish), waste water, sewage effluents, industrial wastes, and hazardous (such as hospital, chemical, radioactive, plastic or other dangerous) wastes.
...Mahatma Gandhi had realized early in his life that the prevalent poor state of sanitation and cleanliness in India and particularly the lack of adequate toilets, in the then largely rural India, needed as much attention as was being devoted toward attainment of swaraj. He said that unless we "rid ourselves of our dirty habits and have improved latrines, swaraj can have no value for us." [CW 14:56-58] Along with the struggle for India's independence, he led a continuous struggle for sanitation, cleanliness, and efficient management of all categories of wastes throughout his public life (1893 – 30.1.1948), in South Africa and then in India. He dealt with nearly all aspects of sanitation-technical, economic and its various aspects-personal, domestic and corporate.
This idea of Gandhi to help the poorest of the poor has brought about a peaceful revolution in the world. He has shown a way to this extremely materialistic, acquisitive, narrow-minded and selfish world. Today Gandhi may not be among us, but he manifests himself through many individuals in our society.