Details of Grant 

EPSRC Reference:	GR/S49155/01
Title:	The use of recycled construction/demolition and industrial waste as a substrate in a novel manganese removal passive treatment system
Principal Investigator:	Johnson, Professor K
Other Investigators:	Singleton, Professor I Manning, Professor DAC
Researcher Co-Investigators:	Professor PL Younger
Project Partners:	Byzak CL:AIRE Coal Authority Durham County Council Environment Agency (Grouped) Mineral Solutions Northumberland County Council Parkhill Estates Ltd Tarmac W M Thompson Haulage Co
Department:	Civil Engineering and Geosciences
Organisation:	Newcastle University
Scheme:	First Grant Scheme Pre-FEC
Starts:	11 August 2003	Ends:	10 May 2005	Value (£):	112,710
EPSRC Research Topic Classifications:	Water Engineering
EPSRC Industrial Sector Classifications:	Construction Water
Related Grants:
Panel History:
Summary on Grant Application Form
The work proposed will use recycled construction/demolition waste instead of dolomite in a novel manganese removal passive treatment system. Dissolved manganese causes major problems in the water industry as it causes pipe blockages, an unpleasant taste and also stains laundry. The Environment Agency are currently reviewing the Environmental Quality Standard and it could be reduced to as low as 0.03mg/l which would mean many discharges which comply with current legislation would fail in the future. Waste aggregates such as concrete, brick and stags provide a high pH environment which helps kickstart manganese oxidation. Manganese oxide will then accrete onto the substrate and take over as the main catalyst thereby preventing further substrate dissolution so that the general water environment does not suffer from high pH conditions. In addition, the system ensures a constant supply of fresh manganese oxides which are powerful sorbents of other more ecotoxic metals. Long-term field trials will prove time viability of this low-cost technology for potential beneficiaries including both the industries which are currently unable to dispose of their waste products and those communities which are affected by manganiferous mine or leachate discharges. The work will also promote sustainability through the reduction of orimarv aaareaete extraction and reduction of waste to landfill.
Key Findings
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Organisation Website:	http://www.ncl.ac.uk