Waste management
In 1842, Edwin Chadwick published a report titled The Sanitary Condition of the Labouring Population. This document argued that waste removal was essential for public health and influenced legislation across England. Before this moment, streets in London were choked with filth due to a lack of regulations. Florence Nightingale had called for municipal authority over waste as early as 1751. Her proposal suggested that all filth be conveyed by the Thames to proper distances in the countryside.
The Nuisance Removal and Disease Prevention Act of 1846 began a steady process of regulated waste management in London. The Metropolitan Board of Works became the first citywide authority to centralize sanitation regulation. By 1875, the Public Health Act made it compulsory for every household to deposit weekly waste in moveable receptacles. These receptacles represented the first concept for what we now call dustbins.
In Nottingham, Manlove, Alliott & Co. Ltd built the first incinerator in 1874. Alfred Fryer designed the structure, but opposition arose because large amounts of ash wafted over neighboring areas. Similar systems appeared at the turn of the 20th century in other European and North American cities. Early garbage trucks were open-bodied dump horses pulled by teams of animals. They became motorized in the early part of the 20th century.
The Global Waste Management Outlook 2024 predicts municipal solid waste will rise from 2.3 billion tonnes in 2023 to 3.8 billion tonnes by 2050. Direct global costs reached USD 252 billion in 2020. Without reform, these figures could soar to USD 640.3 billion annually by 2050. Effective prevention and management could cap annual costs at USD 270.2 billion instead.
A circular economy approach might transform the sector into a net positive, offering a potential annual gain of USD 108.5 billion. The Intergovernmental Panel on Climate Change expects municipal solid waste to reach approximately 3.4 Gt by 2050. Policies and lawmaking can reduce the amount of waste produced in different areas and cities worldwide.
In India, electronic waste generation reaches roughly 2 million tonnes per year. This places India fifth among e-waste producing countries after the United States, China, Japan, and Germany. A report found that about one-fourth of all municipal solid terrestrial waste is not collected. An additional fourth is mismanaged after collection, often burned in open fires.
Effective waste management involves the practice of seven R's: Refuse, Reduce, Reuse, Repair, Repurpose, Recycle, and Recover. The first two strategies relate to non-creation of waste through refusing non-essential products and reducing consumption. The next two refer to increasing usage of existing products with or without substituting certain parts.
Repurpose and Recycle involve maximum usage of materials used in products. Recovery is the least preferred and least efficient practice involving energy recovery from waste material. Burning waste to produce heat and electricity exemplifies this final step. The waste hierarchy represents a pyramid where policies should promote measures to prevent waste generation.
The next step seeks alternative uses for generated waste through reuse. Recycling includes composting as a form of resource recovery. Material recovery and waste-to-energy follow this stage. Disposal in landfills or incineration without energy recovery remains the final resort for waste that has not been prevented, diverted, or recovered.
Incineration converts solid organic wastes into residue and gaseous products through combustion. This method reduces the volume of solid waste by 80 to 95 percent. Incinerators convert waste materials into heat, gas, steam, and ash. Waste-to-energy facilities burn waste in furnaces to generate electricity and heat globally.
Pyrolysis processes thermo-chemical decomposition of organic materials by heat in the absence of stoichiometric quantities of oxygen. Industrial applications use temperatures above 430 degrees Celsius. Slow pyrolysis produces gases and solid charcoal. Pyrolysis holds promise for converting waste biomass into useful liquid fuel.
Anaerobic digestion of the organic fraction of solid waste is more environmentally effective than landfill or incineration. Biological reprocessing recovers plant material, food scraps, and paper products through composting. The resulting organic material becomes mulch or compost for agricultural purposes. Gas from the process can be captured and used for generating electricity and heat.
Exposure to waste worsens primary conditions like asthma and tuberculosis for individuals. Those in less developed or lower income areas are more susceptible to chemical waste effects. Burning waste releases hazardous materials and carbon dioxide as its largest hazard with incineration.
Particular concern focuses on persistent organic compounds such as dioxins, furans, and PAHs created during combustion. Heavy metals like mercury and lead volatilize in the combustion process. Liquid wastes spread out and easily pollute other sources if brought into contact with soil and groundwater.
This pollution carries over to plants, animals, and humans within the affected area. In Agbogbloshie near Accra, Ghana, waste pickers burn plastics off e-waste to collect metals. This process exposes pickers and their local communities to toxic fumes. Health issues arise indirectly through consumption of water, soil, and food contaminated by improper handling.
In most developed countries, domestic waste disposal is funded from national or local taxes related to income or property values. Commercial and industrial waste disposal is typically charged as a commercial service including disposal costs. This practice may encourage contractors to opt for landfill rather than reuse and recycling solutions.
Italy enforces a waste tax based on fixed rates determined by house size and variable rates determined by household population numbers. The World Bank finances solid waste management projects using traditional loans, results-based financing, and technical advisory services. Donors and grants depend on the interest of the donor organization regarding infrastructure development.
San Francisco implemented a Pay-As-You-Throw system charging customers by volume of landfill-bound materials. This provides financial incentives to separate recyclables and compostables from other discards. Morocco saw benefits from implementing a $300 million sanitary landfill system that saved another $440 million in damages from failing to dispose of waste properly.
China's municipal solid waste generation shows spatiotemporal variation across eastern coastal regions. Guangdong, Shanghai, and Tianjin produced 30.35, 7.85, and 2.95 megatonnes respectively during recent years. Fujian province showed a 123% increase in waste generation between 2009 and 2018 while Liaoning showed only 7%. Shanghai special zone had an 11% decline after 2013.
In 2021, China's recycling rate reached about 20 percent. San Francisco achieved an 80% diversion rate from landfills, the highest in any major U.S. city. The city established its Mandatory Recycling and Composting Ordinance supporting Zero Waste by 2030 goals. Council made changes including banning Styrofoam and plastic bags while increasing garbage collection rates.
Areas with developing economies often experience exhausted waste collection services and inadequately managed dumpsites. In Asia, Latin America, and Africa, approximately 2% of the population depends on waste for their livelihood. Family organized or individual manual scavengers work with very little supportive network and increased health risks.
Up Next
Common questions
When did Edwin Chadwick publish his report on the sanitary condition of the labouring population?
Edwin Chadwick published The Sanitary Condition of the Labouring Population in 1842. This document argued that waste removal was essential for public health and influenced legislation across England.
What year did the Public Health Act make it compulsory for households to deposit weekly waste in moveable receptacles?
The Public Health Act made it compulsory for every household to deposit weekly waste in moveable receptacles by 1875. These receptacles represented the first concept for what we now call dustbins.
How much municipal solid waste does the Global Waste Management Outlook 2024 predict will be generated by 2050?
The Global Waste Management Outlook 2024 predicts municipal solid waste will rise from 2.3 billion tonnes in 2023 to 3.8 billion tonnes by 2050. Direct global costs reached USD 252 billion in 2020 without reform.
Which country ranks fifth among e-waste producing countries after the United States, China, Japan, and Germany?
India ranks fifth among e-waste producing countries with electronic waste generation reaching roughly 2 million tonnes per year. This places India behind the United States, China, Japan, and Germany.
By what percentage does incineration reduce the volume of solid waste through combustion?
Incineration reduces the volume of solid waste by 80 to 95 percent through combustion. Incinerators convert waste materials into heat, gas, steam, and ash while converting solid organic wastes into residue and gaseous products.