Lime

Tender description

The supplier shall supply and deliver hydrated and quick lime and milk of lime as requested by the company’s personnel. This is used for pH correction on clean water sites and to add alkalinity to aid ammonia removal, adjust final effluent pH and is used to condition sludge cake on waste water sites. Chemicals are essential for supplying safe, clean drinking water and for treating waste water treatment so that it can be returned to the North West's waterways. Some chemicals are supplied by several companies, whilst some are only supplied by one company to the whole of the UK water industry. This therefore means that the company have to manage this risk and these suppliers differently, it is vital to the company to have consistency of supply and the relevant quality of chemicals to meet the regulatory demands of the Drinking Water Inspectorate (DWI) and the Environment Agency (EA). Chemicals are and will continue to be needed to clean drinking water and to treat waste water. The company is regulated by the DWI and the EA and must meet stringent chemical regulations set out by both regulatory bodies. The supplier shall supply and deliver hydrated and quick lime and milk of lime as requested by the company’s personnel. This is used for pH correction on clean water sites and to add alkalinity to aid ammonia removal, adjust final effluent pH and is used to condition sludge cake on waste water sites. Any lime supplied to clean water sites must be registered on the DWI Reg. 31 list. Liquid and powdered lime must adhere to BSEN No 12518:2014 Chemicals used for treatment of water intended for human consumption – high calcium lime.