Transcript Slide 1
Plant Operations Throughput & Waste Types • 2 Process Trains equating to 40,000 tonnes pa • Expansion to 3 Trains will give 60,000 tonnes pa • Hazardous and Non Hazardous Wastes Processed • Environmental Permit details waste types and tonnage limits. • Waste received in Bulk tippers, skips and packaged drums/containers • 40,000 tonnes per annum equates to approx 8 loads per day Mon to Fri. Staffing • 24 hr, 365 days a year Operation • Facilities Management – Control Sales and Site Operations. • 4 Shift Teams - 3 per Team - 12 hr Shift System • Day staff – Controlling administration, environmental control, waste reception, hazardous waste management. • Local contractors used for specialised work. • Total Staff of approx 20. Waste Deliveries/ Restrictions • Planning and Environmental Permit constraints on waste delivery times to minimise disruption to local populus. • Waste is pre booked into facility. Staff know what to expect. • Weighbridge – Waste received/verification checks. • Traffic Management System ensures safe tipping operations. • Chemical/Raw Material deliveries follow booking system to allow control. Loading/De Ashing • Bulk Non Haz Waste tipped in Reception Bay. • Loading of chambers is via the top and front doors of the chamber. • Loading Shovels/Fork Lift Trucks used to load chamber with loose and packaged waste. • Loading – Gasification – Deashing Process approx 24 hrs per chamber. • Deashing – Material is pushed through the chamber through the back door onto conveyor system. • Metal separation on ash conveyor. Chemicals • Various Chemicals used in Flue Gas Treatment and Water Treatment. • Sodium Bicarbonate • Powdered Activated Carbon • Urea •Gas Oil • Water Storage • Boiler Treatment/Water Treatment Chemicals • Storage required for chemicals in accordance with environmental legislation. • Silos, Storage tanks, Secure bunded areas. • Deliveries add to vehicle movements in and out of the facility. Effluents • Liquid/Solid Effluents • Ash – Storage requirements, disposal options, vehicle movements. • Liquid effluents – storage and transport • Disposal of effluent – Trade effluent discharge in accordance with environmental legislation. • Effluent management under control of the shift teams. Equipment Monitoring • Day to Day monitoring required at various levels on all equipment. • Checking and preventative maintenance carried out by shift teams. • Various individual systems integrated into the plant that require constant surveillance, intervention and knowledge. • Integrated maintenance system in operation to track and record equipment checks • Forms the major part of a shift teams work Control System • WID requires that the flue gas emissions from each stream are monitored by continuous emission monitoring systems (CEMS). This includes • Flue gas flow, temperature, pressure, oxygen and water • Flue gas contaminants VOC, Dust, NH3, SO2, HCL, CO, NOx and N2O • Process Monitoring from control room • Operator knowledge developed to recognise situations Plant Services • Various systems required to allow the efficient operation of the facility. • Gas Oil System, Hydraulic and Air systems in place requiring monitoring and daily checks • Standby generator – state of “readiness” • Operators require knowledge in order to troubleshoot any problems. • Deliveries of fuel scheduled in via facilities management systems. Environmental Reporting • Environmental Permit dictates parameters and timing of all reports. • Managed via facility Environmental Management System. • Verification Checks on incoming waste. Hazardous waste requires stringent checks. • Regular inspections/audits from regulators to ensure compliance. • Requires full time Technical employee to manage. Staff Training • Integral and Important part of W2E Services. • Involved in recruitment and selection of required personnel/specialist contractors. • Classroom and Practical Training given • Set out Training Matrix ensures competency is delivered. • On going Training ensures skills are developed and enhanced. • Ranking of operators according to experience and ability. Internal Qualification System developed in conjunction with local college. Summary • Many different systems that require managing and competency. • Great variety in tasks – loading chambers, knowledge of steam sytems, effluent management. Range of jobs in a facility like this. • Traffic movements : Incoming waste, chemical deliveries, effluent movements. Facility needs robust traffic managment/scheduling system. • Key is recruiting the right people with the right skill set to operate the plant skilfully and safely.