Hazardous waste management and disposal
Expert-defined terms from the Professional Certificate in Waste Management and Recycling course at London School of Business and Administration. Free to read, free to share, paired with a globally recognised certification pathway.
Acid Neutralization #
A process used to treat acidic hazardous waste to raise its pH level and reduce its toxicity. It involves adding a basic substance, such as calcium hydroxide or sodium hydroxide, to the waste to neutralize the acid.
Asbestos #
A group of naturally occurring minerals that are resistant to heat and corrosion. Asbestos fibers can be inhaled and cause serious health problems, including lung cancer and mesothelioma. Asbestos-containing materials are considered hazardous waste and must be managed and disposed of properly.
Best Management Practices (BMPs) #
Techniques and strategies used to prevent or minimize the generation of hazardous waste, reduce the toxicity of waste, and ensure that waste is managed and disposed of in a safe and environmentally sound manner.
Bioremediation #
The use of microorganisms, plants, or enzymes to break down hazardous substances into less toxic or non-toxic forms. Bioremediation can be used to treat a wide range of hazardous wastes, including oil spills, pesticides, and heavy metals.
CERCLA #
The Comprehensive Environmental Response, Compensation, and Liability Act, also known as the Superfund Act, is a US federal law that was enacted in 1980 to clean up hazardous waste sites. The law established a trust fund, financed by a tax on the chemical and petroleum industries, to pay for the cleanup of abandoned or uncontrolled hazardous waste sites.
Circular Economy #
An economic system that is designed to be regenerative and restorative, with the aim of minimizing waste and making the most of resources. In a circular economy, waste is seen as a resource, and products are designed to be durable, reusable, and recyclable.
Crade to Grave #
A term used to describe the life cycle of a product, from its extraction and production to its use and disposal. The concept of cradle to grave emphasizes the importance of considering the environmental impacts of a product throughout its entire life cycle.
Dioxins #
A group of highly toxic compounds that are formed as byproducts of various industrial processes, such as the production of pesticides, paper bleaching, and waste incineration. Dioxins are persistent organic pollutants (POPs) that can accumulate in the food chain and cause serious health problems, including cancer, reproductive and developmental disorders, and damage to the immune system.
Disposal #
The final stage of hazardous waste management, involving the safe and permanent containment or destruction of waste. Disposal methods include landfilling, incineration, and chemical neutralization.
E #
Waste: Electronic waste, such as computers, phones, and televisions, that have reached the end of their useful life. E-waste contains a variety of hazardous substances, including heavy metals, flame retardants, and POPs, and must be managed and disposed of properly to prevent environmental contamination and health risks.
Extended Producer Responsibility (EPR) #
A policy approach that holds manufacturers responsible for the entire life cycle of their products, including the design, production, use, and disposal. EPR aims to shift the responsibility and cost of waste management from governments and consumers to producers, who are incentivized to design products that are durable, reusable, and recyclable.
Hazardous Waste #
Waste that poses a threat to human health or the environment due to its chemical or physical properties. Hazardous waste can be solid, liquid, or gaseous, and includes a wide range of materials, such as solvents, heavy metals, pesticides, and batteries.
Hazardous Waste Manifest #
A document that tracks the movement of hazardous waste from the generator to the disposal facility. The manifest includes information about the waste, the generator, and the transporter, and must be signed by all parties involved in the transportation and disposal of the waste.
Incineration #
A disposal method that involves burning hazardous waste in a controlled environment. Incineration can reduce the volume of waste by up to 99%, but can also produce toxic emissions, such as dioxins and heavy metals, that must be captured and treated.
Landfarming #
A bioremediation technique that involves spreading hazardous waste on the surface of the soil and allowing microorganisms to break down the waste. Landfarming is usually used to treat oil-contaminated soil, but can also be used to treat other types of hazardous waste.
Landfilling #
A disposal method that involves burying hazardous waste in a specially designed facility. Landfills are lined with impermeable materials to prevent leachate from contaminating groundwater, and are equipped with leachate collection and treatment systems.
Leachate #
A liquid that forms when rainwater or other liquids percolate through hazardous waste and dissolve or suspend the waste's constituents. Leachate can be highly toxic and must be collected and treated to prevent environmental contamination.
Life Cycle Assessment (LCA) #
A methodology used to evaluate the environmental impacts of a product or service throughout its entire life cycle, from raw material extraction to disposal. LCA can help identify hotspots and opportunities for improvement in the environmental performance of a product or service.
Medical Waste #
Waste generated by healthcare activities, such as hospitals, clinics, and laboratories. Medical waste can include a variety of hazardous substances, such as sharps, pharmaceuticals, and infectious materials, and must be managed and disposed of properly to prevent health risks.
Minamata Convention #
A global treaty that aims to protect human health and the environment from the harmful effects of mercury. The convention, which was adopted in 2013 and entered into force in 2017, requires parties to take measures to reduce mercury emissions and releases, and to manage mercury-containing products and waste.
PCBs #
Polychlorinated biphenyls, a group of synthetic organic compounds that were widely used in electrical equipment, such as transformers and capacitors, until they were banned in the 1970s due to their toxicity and persistence in the environment. PCBs are persistent organic pollutants (POPs) that can accumulate in the food chain and cause serious health problems, including cancer, reproductive and developmental disorders, and damage to the immune system.
Phytoremediation #
The use of plants to remove hazardous substances from the soil, water, or air. Phytoremediation can be used to treat a wide range of hazardous wastes, including heavy metals, pesticides, and volatile organic compounds (VOCs).
Polluter Pays Principle #
A principle that holds the party responsible for generating hazardous waste responsible for the costs of managing and disposing of the waste. The polluter pays principle is enshrined in many environmental laws and regulations, and is intended to incentivize polluters to reduce the volume and toxicity of their waste.
POPs #
Persistent organic pollutants, a group of toxic chemicals that are resistant to degradation and can accumulate in the food chain. POPs include a wide range of substances, such as dioxins, PCBs, and pesticides, and can cause serious health problems, including cancer, reproductive and developmental disorders, and damage to the immune system.
Recycling #
The process of converting waste materials into new products or materials. Recycling can help reduce the volume of waste, conserve natural resources, and reduce greenhouse gas emissions.
Reduce, Reuse, Recycle #
A waste management hierarchy that prioritizes waste reduction, reuse, and recycling over disposal. The reduce, reuse, recycle hierarchy aims to minimize the amount of waste generated, maximize the value of resources, and minimize the environmental impacts of waste management.
Risk Assessment #
A process used to evaluate the potential health and environmental risks associated with hazardous waste. Risk assessment involves identifying the hazards, estimating the exposure, and evaluating the potential health and environmental impacts.
Sharps #
Needles, syringes