Published date: 6 September 2019

Last edited date: 6 September 2019

This notice was replaced on 27 December 2019

This notice does not contain the most up-to-date information about this procurement. The most recent notice is:

Awarded contract (published 27 December 2019)

Closed opportunity - This means that the contract is currently closed. The buying department may be considering suppliers that have already applied, or no suitable offers were made.


Contract summary

Industry

  • Hydraulic installations - 43328000

Location of contract

North East

Value of contract

£0

Procurement reference

CA18/2/1/37

Published date

6 September 2019

Closing date

20 September 2019

Contract start date

30 September 2019

Contract end date

31 January 2020

Contract type

Service contract

Procedure type

Open procedure (below threshold)

Any interested supplier may submit a tender in response to an opportunity notice.

This procedure can be used for procurements below the relevant contract value threshold.

Contract is suitable for SMEs?

Yes

Contract is suitable for VCSEs?

No

Description

The Employer requires a pair of bespoke baffles to be designed, manufactured and installed in a lagoon located at Lynemouth Mine Water Treatment Scheme.

The Lynemouth Phase I mine water treatment scheme (MWTS) is located on the Northumberland coast on the site of the former Ellington Colliery.

Coal mine water is abstracted at a rate of circa. 115 L/s from an abandoned mine shaft, treated through two lagoons configured in series before being discharged into the sea.

The lagoons are constructed in colliery spoil and lined with an HDPE liner. The treatment process is designed to reduce total iron in the effluent which presents as ochre sludge in the lagoons; the mine water is currently subject to peroxide dosing. Lagoons are taken off line periodically (24 month intervals) to remove sludge by means of pumping.

The site is in a remote location there being no permanent welfare facilities on the site.

The employer intends to install two baffles in lagoon No 1 in order to optimise:
• mean residence time;
• longitudinal mixing characteristics;
• reaction and settlement of ochre within the lagoon.

More information

Attachments

Additional text

To submit a tender for this opportunity please sign into our tender portal InBye where the questionnaire and all technical documents are to be found.

Submissions will only be accepted through the portal - please see attached guidance on how to access the documents

There is an opportunity for an escorted site visit on the morning of 21 August at 1000hrs - if you wish to attend please inform us by sending a message through the tender portal once you have signed into the portal

About the buyer

Contact name

Peter Kobryn

Address

200 Lichfield Lane
MANSFIELD
NG184RG
England

Telephone

07826 874541

Email

peterkobryn@coal.gov.uk