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Argent Biodiesel Stanlow Plant, Oil Sites Road, Ellesmere Port

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Argent Biodiesel Stanlow Plant, Oil Sites Road, Ellesmere Port Argent Energy (UK) Limited Argent Biodiesel Stanlow Plant, Oil Sites Road, Ellesmere Port Reference PART C - Environmental Permit Variation (MBR) EPR/LP3233DK/V005 Report 422613 MARCH 2020 RSK GENERAL NOTES Project No.: 422613 Title: Argent Biodiesel Stanlow Plant. Environmental Permit Variation Report Client: Argent Energy (UK) Ltd Date: 5th March 2020 Office: Helsby Status: Final Author Andrew Sowerby Technical reviewer Robin Overton Date: 05/03/2020 Date: 02/03/2020 Project manager Robin Overton Date: 02/03/2020 RSK Environment Limited (RSK) has prepared this report for the sole use of the client, showing reasonable skill and care, for the intended purposes as stated in the agreement under which this work was completed. The report may not be relied upon by any other party without the express agreement of the client and RSK. No other warranty, expressed or implied, is made as to the professional advice included in this report. Where any data supplied by the client or from other sources have been used, it has been assumed that the information is correct. No responsibility can be accepted by RSK for inaccuracies in the data supplied by any other party. The conclusions and recommendations in this report are based on the assumption that all relevant information has been supplied by those bodies from whom it was requested. No part of this report may be copied or duplicated without the express permission of RSK and the party for whom it was prepared. Where field investigations have been carried out, these have been restricted to a level of detail required to achieve the stated objectives of the work. This work has been undertaken in accordance with the quality management system of RSK Environment Ltd. CONTENTS NON-TECHNICAL SUMMARY .............................................................................................................. 1 1 INTRODUCTION .............................................................................................................................. 3 1.1 Background .............................................................................................................................. 3 1.2 Site Setting ............................................................................................................................... 4 1.3 Permitting History ..................................................................................................................... 5 1.4 Current Need for a Variation .................................................................................................... 5 1.5 Pre-Application Discussions .................................................................................................... 6 2 SITE DETAILS ................................................................................................................................. 7 2.1 Site Location and Surroundings ............................................................................................... 7 2.2 Environmental Setting .............................................................................................................. 7 2.3 Site Boundary .......................................................................................................................... 9 2.4 Site Description ........................................................................................................................ 9 3 MANAGEMENT SYSTEM ............................................................................................................. 11 3.1 Management Activities ........................................................................................................... 11 3.2 Summary ................................................................................................................................ 11 4 CURRENT OPERATIONS ............................................................................................................. 19 4.1 Background ............................................................................................................................ 19 4.2 Current Wastewater Treatment.............................................................................................. 20 4.2.1 Wastewater Storage Tank ......................................................................................... 21 4.2.2 Solids Collection Vessel ............................................................................................. 22 4.2.3 Wastewater Buffer Tank ............................................................................................ 22 4.2.4 Dissolved Air Flotation (DAF)..................................................................................... 22 4.2.5 Process Effluent Tank 1 & Discharge Offsite ............................................................. 23 5 PLANNED CHANGES TO THE EXISTING INSTALLATION ACTIVITY...................................... 25 5.1 Proposed Changes ................................................................................................................ 25 5.2 Overview of Equipment Proposed for Argent Biodiesel Stanlow Plant ................................. 25 5.3 Overview of the Proposed Wastewater Treatment Process .................................................. 26 5.3.1 Membrane Biological Reactor Treatment System ..................................................... 27 5.3.2 Reverse Osmosis ....................................................................................................... 28 5.3.3 Auxiliary Systems ....................................................................................................... 30 5.3.4 Discharge of Treated Effluent for Reuse ................................................................... 30 5.3.5 Discharge of Effluent to Sewer .................................................................................. 30 5.3.6 Treatment of Sludges ................................................................................................. 31 5.3.7 Raw Materials for Wastewater Treatment ................................................................. 32 5.4 Treatment of Additional Waste Type ..................................................................................... 33 5.4.1 Waste Pre-acceptance and Acceptance5.4 Table 4 ................................................. 34 5.4.2 Waste Storage, Handling and Dispatch ..................................................................... 34 5.5 Commissioning ...................................................................................................................... 35 5.6 BAT ........................................................................................................................................ 36 5.7 Emissions Monitoring ............................................................................................................. 36 Argent Energy (UK) Ltd i Argent Biodiesel Stanlow Plant: Environmental Permit Variation Report 422613 5.7.1 Monitoring and Reporting of Emissions to Air ............................................................ 37 5.7.2 Monitoring and Reporting of Emissions to Water ...................................................... 37 5.7.3 Monitoring and Reporting of Emissions to Ground .................................................... 37 5.7.4 Monitoring and Reporting of Emissions to Sewer ...................................................... 37 5.7.5 Monitoring of Process Variables ................................................................................ 38 6 ENVIRONMENTAL RISK ASSESSMENT .................................................................................... 39 6.1 Background ............................................................................................................................ 39 6.2 Impacts ................................................................................................................................... 39 6.2.1 Emissions to Ground Water ....................................................................................... 39 6.2.2 Emissions to Controlled Water................................................................................... 39 6.2.3 Emission to Sewer ..................................................................................................... 39 6.2.4 Emissions to Ground .................................................................................................. 40 6.2.5 Emissions to Air ......................................................................................................... 40 6.2.6 Odour ......................................................................................................................... 40 6.2.7 Noise & Vibration ....................................................................................................... 40 6.2.8 Dust/Litter and Mud .................................................................................................... 41 6.2.9 Pests (flies/vermin etc) ............................................................................................... 41 6.2.10 Vandalism .................................................................................................................. 41 6.3 Potential Receptors ................................................................................................................ 41 7 OPERATING TECHNIQUES ......................................................................................................... 44 8 RESOURCE
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