Five of the UK water companies have put out a tender for a contract for the supply of liquid hexafluorosilicic acid used to fluoridate tap water worth potentially up to £4.8 million.

United Utilities is using both wind and solar power at its Fleetwood sewage works in Lancashire - part of the Warrington-based water group’s multi-million pound strategy to generate 35% of its own electricity.

Innovate UK, the government's innovation agency, together with the Engineering and Physical Sciences Research Council (EPSRC) are seeking to stimulate exploitation of the high-performance material graphene by investing £2.5 million in feasibility studies.

Turnover at BAM Nuttall Ltd, the UK civil engineering arm of Royal BAM Group nv,  rose to £774 million in 2014 compared with £756 million in 29013, but the firm posted a £20 million loss for the period, according to the latest report and accounts filed with Companies House yesterday.

Global natural and built asset design and consultancy firm ARCADIS has been appointed as lead engineer for the €675 million extension of the Port of Calais in a joint venture led by Bouygues.

The Environment Agency is working with Northumbrian Water and other partners to improve water quality in a Northumberland burn - including placing tracers in sewers to try to identify sources of pollution.

South West Water has appeared in court in two separate cases brought by the Environment Agency which cost the water company more than £80,000 in fines and costs for equipment failures at its Milford Park sewage pumping station and at its Dunkeswell sewage treatment plant in East Devon.

Conwy County Borough Council has gone out to tender with a £multi-million coastal defence works contract.

A team of international researchers headed by Prof. Markus Disse at the Technical University of Munich (TUM) has developed a set of recommendations aimed at preserving the local environment in the Xinjiang region in northwestern China where 10% of the world’s cotton is produced - and irrigating the crop is causing water resource problems.