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FEATURE WASTE MANAGEMENT


HANDLING HAZARDOUS WASTE


Mike Brodie, managing director at Chemstore UK, explains how to identify whether your waste is hazardous and advises paying special attention to chemical and battery waste.


M


ost industrial businesses produce hazardous waste. Generally any waste


containing materials or substances that are harmful to humans or the environment is considered hazardous. Common examples include: asbestos; chemicals; solvents; pesticides; oils (except edible ones); equipment containing ozone depleting substances; hazardous waste containers and batteries. Used chemical containers may still be hazardous because they can give off gases and vapours or contain hazardous residues, whether that be solids - such as powders, or liquids


CLASSIFYING YOUR WASTE Any business that produces hazardous waste, holds or stores hazardous waste or has hazardous waste removed from their premises has specific obligations around storing and disposing of the waste correctly. This also applies if you have waste that is a Persistent Organic Pollutant (POPs) so it is essential to work out what is in your waste. Latest waste codes guidance will help. Be


aware, more than one classification may apply. In these cases you must identify exactly what your waste contains, and how much of it is hazardous or POPs. Manufacturers’ product safety data sheets are also a useful reference tool as is the Environment Agency’s Waste classification technical guidance .


SEPARATING AND STORING HAZARDOUS WASTE Do not forget that best practice rules for storing hazardous products in use, should also


38 SUMMER 2021 | INDUSTRIAL COMPLIANCE / INDUSTRIALCOMPLIANCE


be followed when dealing with waste, particularly when it comes to chemical waste. For example, HS(G)51 guidance for the storage of flammable liquids in containers applies as much when products are being disposed of as when they are being stored during use. This is also true for segregation guidance HS(G)71 Chemical Warehousing: The storage of packaged dangerous substances. Failure to segregate hazardous waste


materials has the potential to result in a dangerous reaction. The risks are often


An example of corrosive and flammable waste kept separately in a Fire Rated store with built in segregation walls


Flammables and Organic peroxides cannot be stored together, this is very dangerous, check HSG51 for a free segregation table


exacerbated in a waste storage scenario because of a lack of extraction and temperature control within waste storage units. A common example of poor practice is waste being stored in converted shipping containers. These are usually poorly ventilated, offer no fire rating and cannot reduce solar gain or thermal heat transfer into the storage space. This can result in elevated internal temperatures or ‘hot boxes’, particularly in the summer when temperatures inside easily reach 50 degrees centigrade and above.


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