Hazardous Waste & Compliance FAQ

Can you collect laboratory chemicals?

Yes. We provide laboratory chemical waste management services, subject to suitable identification, classification and acceptance checks.

This can include:

• Unwanted laboratory chemicals.
• Expired chemicals and reagents.
• Acids and alkalis.
• Solvents.
• Chemical residues.
• Contaminated laboratory containers.
• Mixed or unidentified laboratory chemicals requiring assessment.

Laboratory waste can contain substances with very different hazardous properties, so correct identification and segregation are particularly important.

Where the contents are unclear, we may require additional information or testing before collection.

Learn more about our laboratory waste disposal services.

Can you collect mixed chemical waste?

We can help businesses assess and manage mixed chemical waste where a suitable, legally compliant route is available.

However, hazardous wastes must not be mixed indiscriminately.

The mixing of different categories of hazardous waste, or hazardous waste with non-hazardous material, is generally prohibited unless specifically authorised under an environmental permit and the applicable legal conditions are met.

Where a customer already holds mixed chemical waste, we assess the available information to establish its composition, hazardous properties and compatibility.

We may need details of the chemicals involved, concentrations, container types, safety data sheets or analytical results.

This allows us to identify whether a suitable collection, transport and treatment route can be arranged.

Businesses should not combine separate chemical wastes simply to prepare them for collection.

What happens if we do not know what is inside a drum?

An unidentified drum should not be transported using an assumed or generic waste description that does not accurately identify the material.

We can help investigate the contents and determine what additional assessment may be necessary.

Useful information can include:

• Existing labels and markings.
• Photographs.
• Previous use of the container.
• Manufacturing or process history.
• The location where the drum was stored.
• Available safety data sheets.
• Analytical results or samples obtained using appropriate procedures.

Our environmental chemist can help assess the available information and support the identification of a suitable management route.

The aim is to establish a reliable classification and determine the appropriate packaging, documentation and transport arrangements before collection.

Are empty chemical drums and IBCs hazardous waste?

A drum or intermediate bulk container (IBC) that appears empty may still contain hazardous residues.

Its classification depends on factors including:

• The substances it previously contained.
• The amount and nature of any residue.
• Whether it has been properly cleaned.
• The hazardous properties of the original contents.
• The condition of the container.

Containers contaminated by hazardous substances may fall under hazardous waste classification codes, including 15 01 10*, where applicable.

However, classification must reflect the actual condition of the packaging and the relevant waste rules. Not every container that previously held a chemical is automatically hazardous waste.

We assess contaminated industrial packaging to determine whether it is suitable for cleaning, reconditioning, recovery or another authorised management route.

Can drums and IBCs be reused?

Yes. Industrial drums and IBCs can often be cleaned, inspected and reconditioned for further use where their condition, previous contents and applicable technical requirements allow.

Reconditioning can help businesses reduce packaging waste and minimise the demand for newly manufactured containers.

At Packaging Reuse & Disposal Services Ltd, industrial packaging reconditioning is an established part of our business.

We assess the containers before determining whether they are suitable for further use or require an alternative recycling, treatment or disposal route.

Reuse is only appropriate where the packaging can be made suitable and safe for its intended application.

Can industrial sludge be hazardous?

Yes. Industrial sludge can be classified as hazardous depending on its composition, origin and hazardous properties.

Potentially relevant substances include:

• Heavy metals.
• Solvents.
• Oils and hydrocarbons.
• Acids and alkalis.
• Process chemicals.
• Other hazardous contaminants.

The appearance or consistency of sludge is not sufficient to determine whether it is hazardous.

We can review process information, safety data and laboratory results to help establish the appropriate classification and identify a suitable collection and management route.

Can you dispose of off-specification or unwanted chemicals?

Yes. We can help businesses manage off-specification, obsolete or unwanted chemical products where suitable acceptance and treatment routes are available.

Examples may include:

• Expired chemical stock.
• Unused manufacturing chemicals.
• Off-specification products.
• Redundant raw materials.
• Unwanted chemical formulations.
• Residues from discontinued industrial processes.

We may request product details, safety data sheets, quantities, container information and analytical results before confirming arrangements.

The appropriate route depends on the material’s composition, waste classification and any relevant transport or disposal requirements.