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Sanitation Technolog

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INTRODUCTION TO SANITATION Sanitation is the hygienic means of promoting health through prevention of human contact with the hazards of wastes as well as the treatment and proper disposal of sewage or wastewater. Hazards can be either physical, microbiological, biological or chemical agents of disease. Wastes that can cause health problems include human and animal excreta, solid wastes, domestic wastewater (sewage, sullage, greywater), industrial wastes and agricultural wastes. Hygienic means of prevention can be by using engineering solutions (e.g., sanitary sewers, sewage treatment, surface runoff management, solid waste management, excreta management), simple technologies (e.g., pit latrines, dry toilets, urine-diverting dry toilets, septic tanks), or even simply by personal hygiene practices (e.g., hand washing with soap, behavior change). Providing sanitation to people requires a systems approach, rather than only focussing on the toilet or wastewater treatment plant itself. The experience of the user, waste collection methods, transportation or conveyance of waste, waste treatment, and reuse or disposal all need to be thoroughly considered. DEFINATION OF SANITATION The World Health Organization explains sanitation as follows: "Sanitation generally refers to the provision of facilities and services for the safe disposal of human urine and feces. The word 'sanitation' also refers to the maintenance of hygienic conditions, through services such as garbage collection and wastewater disposal. Sanitation includes all four of these engineering infrastructure items (even though often only the first one is strongly associated with the term "sanitation"): Excreta management systems, wastewater management systems (included here are wastewater treatment plants), solid waste management systems, drainage systems for rainwater, also called stormwater

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