Pollution tracking and monitoring and rehabilitation
Published
Description
Pollution tracking and monitoring and rehabilitation. Services related to air pollution. Services related to water pollution. Air pollution protection services. Services related to toxic substances pollution. Toxic substances rehabilitation services. Sewage treatment services. Operation of a sewage plant. Water treatment work. LondonWaste Ltd (‘The Company’) own and operate the EcoPark Energy Centre located in Edmonton, London. The Energy Centre has 5 boilers burning approximately 500 000 tonnes of domestic refuse per year in a continuous 24 hour operation, 7 days per week. The waste is delivered by road via the weigh bridges/gate house by various types of transport. The waste is tipped and held in storage bunkers. Waste is fed by 3 5-m3 grabbing cranes from the storage bunkers to the feed chutes of each boiler. Each of the water tube boilers is operated to achieve an evaporation rate of 40 tonnes per hour, at a steam pressure of 41,5 Bar and temperature of 415 oC. Material which remains after the incineration process is transferred to the residual conveyors for onward transfer for further treatment and recycling. The flue gas treatment plant consists of 4 streams each designed to treat up to 137 500 Nm3/h of flue gas. Each boiler may deliver up to 110 000 Nm3/hr of flue gas at a temperature of around 190 oC. The superheated steam from the boilers is used to drive 4 single cylinder, 17 stage turbines to generate electrical power at 11 kV. This power is used for the house load with the surplus exported to the National Grid via 2 step-up 11/33 kV transformers. The power exported to the grid averages 32 MWh. This specification is for the supply of Operations and Maintenance (O&M) services to the Energy Centre Flue Gas Treatment (FGT) and Effluent Treatment Plant (ETP). This is to ensure that the Company has competent resources available during normal and abnormal plant operations as well as planned and unplanned outages to provide operational, maintenance and overhaul services. Each boiler undergoes an annual statutory survey and during this period 1 of the 4 FGT streams will also undergo an annual survey. During this time offload repairs are carried out such as replacement of expansion joints, cleaning of and repairs to the quench towers, repairs to booster fans, replacement of plate work where required, overhaul of conveyors and pumps, etc. It is intended that the contract for the works defined in this specification will be for an initial period of 4 years. However, the Company retains the option to extend the contractual term for an additional period of 12 months. All communication must be directed via the Delta e-Sourcing Portal. You will need to register as a supplier on Delta which is free and takes less than 10 minutes. Important: The PQQ Access Code is VGNTZY7MF8. You will be required to complete the PQQ and submit it together with all relevant attachments before the stated deadline. Failure to comply will result in your organisation being excluded from the process. A copy of the Invitation to Tender is provided in excel format for viewing only at this stage. Only those suppliers that are shortlisted will be invited to participate in the tender process. Thank you for your cooperation.
Timeline
Publish date
9 years ago
Buyer information
LondonWaste Limited
- Contact:
- Peter Wykes
- Email:
- peter.wykes@londonwaste.co.uk
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