Commissioning and analysis of new desulfurization wastewater treatment system in a coal-fired power plant
In a desulfurization wastewater renovation project of a coal-fired power plant in Shandong Province, the original triple-tank process was replaced by integrated high efficiency clarification process to treat the desulfurization wastewater, with suspended solids of 13 650 mg/L, CODCr of 350 mg/L and...
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Editorial Office of Industrial Water Treatment
2025-01-01
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| Series: | Gongye shui chuli |
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| Online Access: | https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2024-0313 |
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| author | LIU Guidong HU Yangyang WANG Jing CHEN Yang WANG Zhiyong DANG Yulu XU Hao |
| author_facet | LIU Guidong HU Yangyang WANG Jing CHEN Yang WANG Zhiyong DANG Yulu XU Hao |
| author_sort | LIU Guidong |
| collection | DOAJ |
| description | In a desulfurization wastewater renovation project of a coal-fired power plant in Shandong Province, the original triple-tank process was replaced by integrated high efficiency clarification process to treat the desulfurization wastewater, with suspended solids of 13 650 mg/L, CODCr of 350 mg/L and heavy metal ion concentration exceeding the standard. The basic chemical dosage could be determined by laboratory test. By on-site equipment joint adjustment, the operating parameters could be optimized and equipment damage rate could be reduced. After 168 h commissioning and running, the new process of desulfurization wastewater system was stable and effective. The effluent SS was 1.5 mg/L, CODCr was 132.2 mg/L, total lead, total cadmium, total mercury, total chromium, and total zinc were 0.14, 0.01, 0.01, 1.04, and 1.24 mg/L, respectively. The effluent quality could meet the relevant indicators of the Discharge Standard of Wastewater from Limestone-Gypsum Flue Gas Desulfurization System in Fossil Fuel Power Plants (DL/T 997-2020). Compared with the original triple-tank process in power plants, the integrated high-efficiency clarification process not only significantly improved water quality, but also reduced annual operating costs from over 1 million yuan to over 0.5 million yuan, with significant economic effects. |
| format | Article |
| id | doaj-art-e92b94dd0c674511b46874190b86dd82 |
| institution | Kabale University |
| issn | 1005-829X |
| language | zho |
| publishDate | 2025-01-01 |
| publisher | Editorial Office of Industrial Water Treatment |
| record_format | Article |
| series | Gongye shui chuli |
| spelling | doaj-art-e92b94dd0c674511b46874190b86dd822025-01-24T07:59:03ZzhoEditorial Office of Industrial Water TreatmentGongye shui chuli1005-829X2025-01-0145117918510.19965/j.cnki.iwt.2024-03131005-829X（2025）01-0179-07Commissioning and analysis of new desulfurization wastewater treatment system in a coal-fired power plantLIU Guidong0HU Yangyang1WANG Jing2CHEN Yang3WANG Zhiyong4DANG Yulu5XU Hao6School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an710049, ChinaShanxi Coal Chemical Industry Technology Research Institute Co., Ltd., Xi’an710100, ChinaState Key Laboratory of High-Efficiency Flexible Coal Power Generation and Carbon Capture Utilization and Storage, Xi’an TPRI Water Management & Environment Protection Co., Ltd., Xi’an710054, ChinaState Key Laboratory of High-Efficiency Flexible Coal Power Generation and Carbon Capture Utilization and Storage, Xi’an TPRI Water Management & Environment Protection Co., Ltd., Xi’an710054, ChinaHuaneng Changjiang Envirironment & Technology Co., Ltd., Beijing102209, ChinaXi’an Yitong Thermal Technical Service Co., Ltd., Xi’an710054, ChinaSchool of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an710049, ChinaIn a desulfurization wastewater renovation project of a coal-fired power plant in Shandong Province, the original triple-tank process was replaced by integrated high efficiency clarification process to treat the desulfurization wastewater, with suspended solids of 13 650 mg/L, CODCr of 350 mg/L and heavy metal ion concentration exceeding the standard. The basic chemical dosage could be determined by laboratory test. By on-site equipment joint adjustment, the operating parameters could be optimized and equipment damage rate could be reduced. After 168 h commissioning and running, the new process of desulfurization wastewater system was stable and effective. The effluent SS was 1.5 mg/L, CODCr was 132.2 mg/L, total lead, total cadmium, total mercury, total chromium, and total zinc were 0.14, 0.01, 0.01, 1.04, and 1.24 mg/L, respectively. The effluent quality could meet the relevant indicators of the Discharge Standard of Wastewater from Limestone-Gypsum Flue Gas Desulfurization System in Fossil Fuel Power Plants (DL/T 997-2020). Compared with the original triple-tank process in power plants, the integrated high-efficiency clarification process not only significantly improved water quality, but also reduced annual operating costs from over 1 million yuan to over 0.5 million yuan, with significant economic effects.https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2024-0313coal-fired power plantdesulfurization wastewaterintegrated high efficiency clarification equipmentcommissioning |
| spellingShingle | LIU Guidong HU Yangyang WANG Jing CHEN Yang WANG Zhiyong DANG Yulu XU Hao Commissioning and analysis of new desulfurization wastewater treatment system in a coal-fired power plant Gongye shui chuli coal-fired power plant desulfurization wastewater integrated high efficiency clarification equipment commissioning |
| title | Commissioning and analysis of new desulfurization wastewater treatment system in a coal-fired power plant |
| title_full | Commissioning and analysis of new desulfurization wastewater treatment system in a coal-fired power plant |
| title_fullStr | Commissioning and analysis of new desulfurization wastewater treatment system in a coal-fired power plant |
| title_full_unstemmed | Commissioning and analysis of new desulfurization wastewater treatment system in a coal-fired power plant |
| title_short | Commissioning and analysis of new desulfurization wastewater treatment system in a coal-fired power plant |
| title_sort | commissioning and analysis of new desulfurization wastewater treatment system in a coal fired power plant |
| topic | coal-fired power plant desulfurization wastewater integrated high efficiency clarification equipment commissioning |
| url | https://www.iwt.cn/CN/10.19965/j.cnki.iwt.2024-0313 |
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