【Roll up sleeves for environmental protection】014: Before carrying out maintenance, have you prepared a specific environmental protection plan?
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This post was last edited by 68589544 on 2017-4-25 at 11:14 – Here, I’d like to share the practices of some companies – The device achieves zero discharge of the three types of waste; the wastewater from the methanol heat exchanger is drained into side ditches rather than being directly connected to oil-containing sewage wells, and thus it does not meet the conditions for sealed discharge. This issue needs to be addressed. ”On February 13, Geng Yongjun, a process engineer in the coal-to-hydrogen workshop, carried more than a dozen \"Confirmation Forms for Sealed Discharge of Plant Wastewater\" and carefully inspected the drain points of each piece of equipment and pipeline on site, taking detailed notes. One month before the maintenance, the coal-to-hydrogen workshop conducts an environmental assessment of the wastewater, waste gas, and waste residues generated during the shutdown period. It formulates corrective plans for any issues identified, breaks these plans down into daily task lists, and assigns dedicated personnel to oversee their implementation. Process engineer Geng Yongjun was specifically responsible for the renovation of the 78 sealed components in the wastewater discharge system; for those points where sealed discharge could not be achieved, fixed pipelines were installed, or temporary rubber hoses were connected to the oily wastewater wells, to ensure that wastewater was discharged in a completely sealed manner. The refining division carefully formulated and strictly implemented zero-emission plans for shutdown maintenance, strictly controlling the emission of flare gas, wastewater discharge, odor leakage, and noise pollution. Issues related to the sealed recovery of waste gases and the sealed disposal of waste liquids were resolved through measures such as installing temporary pipelines and treating oil vapor pools. On March 27, the asphalt workshop installed a temporary water cooler in front of the line-cleaning tank to minimize the generation of purge gases. “The gas holder system recovers the waste gases emitted during the purging of various units that are shut down for maintenance; due to the presence of hot oil and gas, an unpleasant odor is inevitably detected in the area around the purging tank. Now that the water cooler has been installed, the unpleasant odor has also disappeared. ”Wu Maosheng, the shift leader of the asphalt workshop, said excitedly. To date, no incidents of excessive levels of ‘three wastes’ have occurred at the refinery’s shutdown for maintenance.
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This is a rather meaningful thing
As a professional forum in the field of petrochemicals, the HaiChuan Forum should take the lead in discussing these issues
Only foreign companies and some state-owned enterprises do this; when small businesses undergo major maintenance, there’s sewage everywhere, and all kinds of messes appear.
Few companies prepare environmental protection plans in advance for major repairs.