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“During the trial period for the recovery of caprolactam wastewater, the operating adjustment parameters remained stable, showing consistency with the online environmental data prior to the trial, with no significant fluctuations. This had no impact on the discharged data, nor on the parameters of the flue gas emitted after desulfurization, and there were no abnormal effects on the operational adjustments. In early March, the Power Division of Baling Petrochemical reported to the Caprolactam Division on the trial use of the ammonium sulfate evaporation condensate to wash the exhaust gases from the desulfurization tower, indicating that the project aimed at optimizing regional resources through the reuse of ammonium sulfate evaporation condensate is indeed feasible. “The reuse of ammonium sulfate evaporation condensate is one of the cross-departmental resource optimization projects carried out by Baling Petrochemical. It addresses several separate issues that existed within the company’s boundaries, such as the high pressure associated with biological wastewater treatment in the water supply and drainage, caprolactam, power generation, and fertilizer production departments, the large volume of ammonium sulfate evaporation condensate generated, the need to treat exhaust gases using ammonia water before they can be discharged in compliance with regulations, and the export of dilute ammonia water. Through regional integration, these issues are resolved on a systematic basis by breaking down those internal boundaries, thereby fostering coordinated development and creating a win-win situation. This approach allows the company to free up at least 50,000 cubic meters of wastewater treatment capacity each year for its operational needs. Last September, Qin Lang, the supervisor of the production department in the caprolactam division, learned that the fertilizer division was exporting dilute ammonia water. By continuously improving the “problem-solving platform,” he proposed using the evaporation condensate from ammonium sulfate in order to prepare dilute ammonia water for the fertilizer division, thereby reducing the wastewater treatment burden on the biochemical workshop. Through the company’s continuous improvement platform, this division works with departments such as the Production Department, the Fertilizer Division, and the Power Division to discuss optimization measures. Through brainstorming, the Fertilizer Division concluded that it was not feasible to use condensate to prepare dilute ammonia water; however, it was agreed that evaporating the condensate with ammonium sulfate could be used as a direct substitute for fresh water in the desulfurization tower exhaust gas treatment system of the Washing Power Unit. The Production Department of Baling Petrochemical coordinates cross-regional projects, organizes the analysis of the components in ammonium sulfate condensate, calculates the engineering volume of the transmission pipelines, and assesses the impact of the used washing liquid on downstream receiving facilities. Since early December last year, the caprolactam division has been using tank trucks to transport ammonium sulfate evaporation condensate to the power department for testing, achieving the desired results. Currently, the project has entered the pipeline renovation phase. (Peng Zhan, Liu Wenzong, Li Yuzhou – Sinopec News Network ==================== Why was the name changed? The Haichuan Leisure Area has been organizing the 【Where Is Haichuan’s Spring?】 sharing event in the tourism category for two consecutive years. Every year, many tourists participate in this event, sharing the delicious food and beautiful scenery from different places, as well as their happy feelings. Logically, the third season of the 【Where Is Haichuan’s Spring?】 event should have started this year.) Sponsorship from HaiChuan is definitely necessary; it helps to highlight the characteristics of this forum. Of course, we have no objection to sponsorship from companies as well. By including the chemical industry, we can emphasize the sector’s unique features. Spring has arrived, and that is also a characteristic of this event – it’s a time to share the beauty of spring. The arrival of spring represents a change from the dull days of winter; it brings hope, vitality, and growth for all things. Spring has also arrived for the chemical industry, and it’s a sign of hope that, after the accidents, market fluctuations, and environmental pressures that the industry has faced recently, there will be a new era of prosperity for it. It’s a time to welcome the transformation and upgrading of the chemical industry with a happy attitude. If you share happiness in spring, you will reap countless joys in autumn. We invite everyone to participate and share joy together – Happy HaiChuan! We’re waiting for you