Many liquid, gel or powder cleaners can be disposed of in the same way that the product is used, such as down the drain. Plastic bottles and aerosol cans can often be recycled when empty. Products with hazardous chemicals like oven cleaners should be taken to a local waste disposal location.

Examples of non-hazardous wastes would be sugars, lactic acid, bromides, or carbonates, just to name a few. Though these materials won’t negatively affect the health of humans, they must be collected and disposed of properly for a variety of reasons.

They can be divided into seven groups depending on the type of manufacturing or industrial operation that creates them:

• Spent solvent wastes,
• Electroplating and other metal finishing wastes,
• Dioxin-bearing wastes,
• Chlorinated aliphatic hydrocarbons production,
• Wood preserving wastes,

When categorizing hazardous waste, the EPA breaks it down by four characteristics:

1. ignitability, or something flammable.
2. corrosivity, or something that can rust or decompose.
3. reactivity, or something explosive.
4. toxicity, or something poisonous.

The long-recognized hierarchy of management of wastes, in order of preference consists of prevention, minimization, recycling and reuse, biological treatment, incineration, and landfill disposal (see Figure below).

Recovery techniques can be classified into two main groups: a waste-to-energy (waste recovery) technique and a waste-to-material (material recovery) technique. Organic wastes can be used to recover energy according to a waste-to-energy recovery technique.

Waste disposal methods

• Recycling. Incineration.
• Other thermal treatment plants. Chemical-physical and biological treatment.
• Chemical-physical and biological treatment. Landfills.
• Landfills. Collection and logistics.

The use of Incineration by burning the material in high temperatures is a great way to destroy toxic waste. Incineration actually destroys and terminates most HHW. A benefit of society using this method is the fact that the flammable wastes can also be burned and used as energy sources.

Common Examples of Hazardous Waste. Many pesticides, herbicides, paints, industrial solvents, fluorescent light bulbs and mercury-containing batteries are classified as hazardous wastes. So are medical waste products such as cultures, human tissue, contaminated gloves, sharps and so forth.

The four characteristics of hazardous waste are: ignitability • corrosivity • reactivity • toxicity.

According to EPA, toxic waste is only waste “that is harmful or fatal to living organisms when absorbed or ingested”. Hazardous waste is the lower level of potentially harmful substances, toxic is higher. Hazardous waste can be, but isn’t necessarily toxic.

Sanitary wastes that come from households that pass through a publicly or privately owned sewer system are considered to be domestic sewage and are excluded from regulation as hazardous wastes. Wastewater discharges from publicly owned wastewater treatment facilities are strictly regulated under the Clean Water Act.

10 of the Most Dangerous Chemicals in the World

• 2,3,7,8-Tetrachlorodibenzo-p-dioxin.
• Tabun.
• Strychnine.
• Sodium cyanide.
• Nicotine.
• Ethylene glycol. It’s in your car as antifreeze.
• Hydrogen peroxide. The hydrogen peroxide in your bathroom cabinet has a concentration of 3 to 6%.
• Digoxin. A purified extract of the foxglove plant.

TYPES OF HAZARDOUS MATERIALS

• Class 1: Explosives.
• Class 2: Gases.
• Class 3: Flammable Liquids.
• Class 4: Flammable Solids.
• Class 5: Oxidizing Substances, Organic Peroxides.
• Class 6: Toxic Substances and Infectious Substances.
• Class 7: Radioactive Material.
• Class 8: Corrosives.

The specific Health hazard criteria to be reviewed are: Acute toxicity (oral, Dermal and Inhalation), Categories 1-4. Specific Target organ Toxicity: repeated or prolonged exposure, Categories 1 and 2. Aspiration hazard, Category 1.

What are the 9 classes of Dangerous Goods?

• Explosives.
• Flammable Gases.
• Flammable Liquids.
• Flammable solids.
• Oxidizing.
• Toxic & Infectious.
• Radioactive.
• Corrosives.

GHS uses three hazard classes: Health Hazards, Physical Hazards and Environmental Hazards. It’s important to note, the HazCom 2012 categories are similar yet contradictory to the HMIS/NFPA ratings: GHS 1 – 4 rating system ranks 4 as the least severe while NFPA’s rank 4 is most severe. …

Class 9 Miscellaneous Dangerous Goods are substances and articles which during transport present a danger or hazard not covered by other 8 classes.