Analysis on Operation and Water Quality Characteristics of Centralized Wastewater Treatment Plants of Industrial Parks in Yellow River Basin, China
The Yellow River basin serves as an important economic belt and industrial base in China, featuring numerous industrial parks. However, alongside its economic significance, the basin struggles with significant water environmental challenges. This study analyzed the operational status, influent water...
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| Format: | Article |
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MDPI AG
2024-03-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/16/6/806 |
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| author | Yanjun Wang Yue Yuan Hao Xue Yin Yu Yang Shi Huina Wen Min Xu |
| author_facet | Yanjun Wang Yue Yuan Hao Xue Yin Yu Yang Shi Huina Wen Min Xu |
| author_sort | Yanjun Wang |
| collection | DOAJ |
| description | The Yellow River basin serves as an important economic belt and industrial base in China, featuring numerous industrial parks. However, alongside its economic significance, the basin struggles with significant water environmental challenges. This study analyzed the operational status, influent water quality, and energy consumption of 63 centralized wastewater treatment plants (WWTPs) from 54 major industrial parks in the Yellow River basin. The scale of these WWTPs was primarily within the range of 1 × 10<sup>4</sup>~5 × 10<sup>4</sup> m<sup>3</sup>/d, with an average hydraulic loading rate of 53.8%. Aerobic treatment processes are predominant. The influent concentrations of chemical oxygen demand (COD), biochemical oxygen demand (BOD), ammonia nitrogen (NH<sub>3</sub>-N), total nitrogen (TN), and total phosphorus (TP) in the WWTPs exhibited a right-skewed distribution. The BOD/COD ratio of the WWTPs fluctuated between 0.1 and 1.6, and 75% of the WWTPs showed a COD/TN ratio lower than eight. The average BOD<sub>5</sub>/TN was 2.7, and the probability of influent BOD<sub>5</sub>/TP > 20 was 84.6%. A significant linear correlation exists between the influent BOD and COD concentrations, while moderate linear relationships are also observed among NH<sub>3</sub>-N, TN and TP, emphasizing the importance of maintaining appropriate nitrogen and phosphorus levels for efficient pollutant removal. The average electricity consumption of WWTPs in the Yellow River basin in 2023 was 1.1 kWh/m<sup>3</sup>. It is important to upgrade these WWTPs and reduce their energy consumption. Further strengthening the construction of industrial wastewater collection and treatment facilities based on regional characteristics is recommended to promote the high-quality development of industrial wastewater treatment in the Yellow River basin. |
| first_indexed | 2024-04-24T17:44:42Z |
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| language | English |
| last_indexed | 2024-04-24T17:44:42Z |
| publishDate | 2024-03-01 |
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| series | Water |
| spelling | doaj.art-18ac36abdbb0454eaacd45d1e7a4f7412024-03-27T14:08:11ZengMDPI AGWater2073-44412024-03-0116680610.3390/w16060806Analysis on Operation and Water Quality Characteristics of Centralized Wastewater Treatment Plants of Industrial Parks in Yellow River Basin, ChinaYanjun Wang0Yue Yuan1Hao Xue2Yin Yu3Yang Shi4Huina Wen5Min Xu6Chinese Research Academy of Environmental Sciences, Beijing 100012, ChinaChinese Research Academy of Environmental Sciences, Beijing 100012, ChinaChinese Research Academy of Environmental Sciences, Beijing 100012, ChinaChinese Research Academy of Environmental Sciences, Beijing 100012, ChinaYellow River Basin Ecological and Environmental Administration Ministry of Ecology and Environment, Zhengzhou 450004, ChinaEcological and Environmental Monitoring and Scientific Research Center, Yellow River Basin Ecological and Environmental Administration Ministry of Ecology and Environment, Zhengzhou 450004, ChinaChinese Research Academy of Environmental Sciences, Beijing 100012, ChinaThe Yellow River basin serves as an important economic belt and industrial base in China, featuring numerous industrial parks. However, alongside its economic significance, the basin struggles with significant water environmental challenges. This study analyzed the operational status, influent water quality, and energy consumption of 63 centralized wastewater treatment plants (WWTPs) from 54 major industrial parks in the Yellow River basin. The scale of these WWTPs was primarily within the range of 1 × 10<sup>4</sup>~5 × 10<sup>4</sup> m<sup>3</sup>/d, with an average hydraulic loading rate of 53.8%. Aerobic treatment processes are predominant. The influent concentrations of chemical oxygen demand (COD), biochemical oxygen demand (BOD), ammonia nitrogen (NH<sub>3</sub>-N), total nitrogen (TN), and total phosphorus (TP) in the WWTPs exhibited a right-skewed distribution. The BOD/COD ratio of the WWTPs fluctuated between 0.1 and 1.6, and 75% of the WWTPs showed a COD/TN ratio lower than eight. The average BOD<sub>5</sub>/TN was 2.7, and the probability of influent BOD<sub>5</sub>/TP > 20 was 84.6%. A significant linear correlation exists between the influent BOD and COD concentrations, while moderate linear relationships are also observed among NH<sub>3</sub>-N, TN and TP, emphasizing the importance of maintaining appropriate nitrogen and phosphorus levels for efficient pollutant removal. The average electricity consumption of WWTPs in the Yellow River basin in 2023 was 1.1 kWh/m<sup>3</sup>. It is important to upgrade these WWTPs and reduce their energy consumption. Further strengthening the construction of industrial wastewater collection and treatment facilities based on regional characteristics is recommended to promote the high-quality development of industrial wastewater treatment in the Yellow River basin.https://www.mdpi.com/2073-4441/16/6/806industrial wastewater treatment plantYellow River basinconstruction and operational statusinfluent water qualityenergy consumption |
| spellingShingle | Yanjun Wang Yue Yuan Hao Xue Yin Yu Yang Shi Huina Wen Min Xu Analysis on Operation and Water Quality Characteristics of Centralized Wastewater Treatment Plants of Industrial Parks in Yellow River Basin, China Water industrial wastewater treatment plant Yellow River basin construction and operational status influent water quality energy consumption |
| title | Analysis on Operation and Water Quality Characteristics of Centralized Wastewater Treatment Plants of Industrial Parks in Yellow River Basin, China |
| title_full | Analysis on Operation and Water Quality Characteristics of Centralized Wastewater Treatment Plants of Industrial Parks in Yellow River Basin, China |
| title_fullStr | Analysis on Operation and Water Quality Characteristics of Centralized Wastewater Treatment Plants of Industrial Parks in Yellow River Basin, China |
| title_full_unstemmed | Analysis on Operation and Water Quality Characteristics of Centralized Wastewater Treatment Plants of Industrial Parks in Yellow River Basin, China |
| title_short | Analysis on Operation and Water Quality Characteristics of Centralized Wastewater Treatment Plants of Industrial Parks in Yellow River Basin, China |
| title_sort | analysis on operation and water quality characteristics of centralized wastewater treatment plants of industrial parks in yellow river basin china |
| topic | industrial wastewater treatment plant Yellow River basin construction and operational status influent water quality energy consumption |
| url | https://www.mdpi.com/2073-4441/16/6/806 |
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