Environmental guidance for your business in Northern Ireland & Scotland
Before you apply single-coat white enamel ('direct-on white enamelling'), you must prepare the surface with a nickel coating (nickel flash) to ensure a good enamel bond. You can normally achieve this by dipping the item to be enamelled into a hot solution of acidified nickel sulphate. Metallic nickel is often deposited by ion replacement but alternative processes are available.
After rinsing, the surface is passivated (made unreactive) in a hot alkaline solution. This neutralises the acid residues and prevents rusting.
In the nickel sulphate baths, significant quantities of iron hydroxide are formed. It is filtered out of the bath on a continuous basis.
You must not make any discharge to surface water or groundwater without consulting your environmental regulator. If you discharge without an authorisation, permit or consent from your environmental regulator you could be prosecuted and fined or imprisoned.
You must not discharge trade effluent to a public sewer without trade effluent consent or a trade effluent agreement with your water and sewerage company or authority. If you discharge without a consent or agreement you could be prosecuted and fined or imprisoned.
You must comply with your duty of care responsibilities when dealing with waste.
Spent nickel sulphate solutions are acidic and you may need to deal with them as hazardous/special waste.
My Year at NetRegs, A reflection on my time as an intern with the NetRegs team at SEPA. An overview of all the activities and projects I had the opportunity to participate in during my Bright Green Environmental Placement.
A day with Hydrology, SEPA's hydrometry unit is responsible for around 400 gauging stations and 350 rainfall monitoring sites. River gauging stations are important as they allow river levels to be monitored so flood events can be predicted and flood warnings sent out.
View our latest videos & subscribe to our channel.