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发布时间 | 所属地区 | 所属机构 | 语言 |
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2024年06月10日 | -- | -- | 英语 (English) 中文 |
Published date: 10 June 2024 Last edited date: 12 June 2024 Open early engagement - This means that a procurement idea is currently active, it is in the early stage of development and judging interest from potential suppliers.
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Closing date: 24 June 2024
Contract summaryIndustryWater-main refurbishment construction work - 45232151 Location of contractNorth East, North West, Yorkshire and the Humber, East Midlands, West Midlands, East of England, London, South East, South West, Scotland, Wales Procurement referenceCA18/2/1/94 Published date10 June 2024 Closing date24 June 2024 Contract is suitable for SMEs?Yes Contract is suitable for VCSEs?No DescriptionThe Coal Authority currently operate 161 individual reed beds providing treatment capacity at 59 mine water treatment sites and 130 settlement ponds at 53 sites. The purpose of the mine water treatment sites is to remove iron that has been mobilised from old mine workings into groundwater. These mine water treatment sites operate by enabling oxidation of the iron, which is then precipitated as iron hydroxide (ochre) and settled in settlement ponds. The effluent from the settlement ponds is then passed through reed beds to polish the water before discharge to local water courses under discharge consents. The reed beds are planted with a variety of wetland plants that act primarily as filters to remove any remaining ochre from the water before it is discharged. Over time there is a build-up of ochre within the settlement ponds and biomass from reed growth together with the ochre and any wind-blown dust that is captured within the reed bed. For the reed beds and settlement ponds to operate correctly the available headroom for the water levels have to be maintained within an acceptable range. So an amount of this build up has to be removed periodically and disposed of through an environmentally sustainable route. More information
How to applyFollow the instructions given in the description or the more information section. About the buyerContact nameSarah Kendrick Address200 Lichfield Lane Telephone01623637008 Is there anything wrong with this page? |
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