SOLID WASTE By SRUTHI SRINIVAS
INCLUDES: What is composition of solid waste? What are the factors effecting solid waste? o What are types of solid waste?
ABOUT ME EDUCATION:-doing bachelors in Andhra University INTERESTS: Archaeology drives me out V Passionate Learner Polity Enthusiast Follow me at https://unacademy.com/user/sruthi6470 .
PHYSICAL COMPOSITION The composition of solid waste means the different types of waste material that it consists of and their characteristics Composition of solid waste varies with respect to Municipality (place) v Time Waste collection is performed by the municipality within a given area.
The solid waste consists of food waste, paper, plastics, textile, rubber, leather, garden waste, wood, charcoal, glass, metals, ash, dust and others . The term residual waste relates to waste left from household sources containing materials that have not been separated out or sent for reprocessing
CHEMICAL COMPOSITION Key aspects of chemical composition are: moisture content - the percentage of water in the waste ash content - the amount of material remaining after burning the waste heat content - also known as calorific value, that is the amount of heat energy produced when the waste is burned
e The moisture content of municipal solid wastes varies depending on the season of the year, humidity and weather conditions, as well as on the composition of the waste. Incombustible matter remained . Based on the carbon content in the solid waste the calorific value is defined
FACTORS Season of the year The habits or culture of the community People's educational or economic status the geographical location length of time that it can be safely stored before disposal
Different foods are available at different times of year, so the amount of waste from preparing food (vegetable trimmings and so on) and its composition will change. Wastes tend to be wetter during rainy seasons. There may be more food waste produced during festival times and less produced when people are fasting If kept uncovered for too long, some waste will become a health hazard
CLASSIFICATION-1 Based on the decomposition of the materials/wastes Solid waste is classified into - Biodegradable . Non-biodegradable
If the decomposition process takes place in the absence of air (anaerobically), methane gas is formed. The decomposition may also produce offensive and irritating smells The controlled anaerobic decomposition can produce biogas a useful fuel for heating, cooking and even power generation . Waste that decomposes in the presence of an adequate air supply (aerobically) under ntrolled conditions can produce compost, which can be used to improve the quality of oils
CLASSIFICATION-2 Based on the inherent dangers associated with its physical and chemical properties, . Solid waste is classified into - Hazardous . Non-hazardous
Inert waste: construction and demolition waste, dirt, rocks, debris e Electrical and electronic waste :electrical appliances, light bulbs, washing machines, TVs, computers, screens, mobile phones, alarm clocks, watches, etc. e Composite wastes: waste clothing, Tetra Packs, waste plastics such as toys Toxic waste: pesticides, herbicides, and fungicides Biomedical waste: expired pharmaceutical drugs, used cotton etc.
THANK YOU Sruthi Srinivas
Presently doing bachelors in Andhra University college of engineering.interested in learning, reading novels, exposures,rides....