深圳河水体污染特征分析及整治措施
中国给水排水[ISSN:1000-4062/CN:12-1073/TU]
卷:
第36卷
期数:
2020年第7期
页码:
52-59
栏目:
出版日期:
2020-04-01
- Title:
- Pollution Characteristics Analysis and Control Measures of Shenzhen River
- 摘要:
- 为提高深圳河的水环境，在水体污染特征分析及污染源解析的基础上，对污染物削减目标进行了估算，并提出了最大日负荷总量(TMDL)水质改善措施。结果表明，水体中DO浓度较低，71%的断面水体中氨氮和总氮浓度超出地表Ⅴ类水质标准，且氨氮和总氮浓度均沿河流方向升高。各行政区中生活和工业废水及河道底泥是水体污染的主要来源，福田区污染贡献占比最大，生活污水排放占比为33%，工业废水排放对河道COD、氨氮的贡献率分别达到42%、44%，是溯源截污的重点区域。通过截污清淤、海绵调蓄、生态修复及景观营造等措施，可以实现2020年全面消黑及2025年水质达到Ⅴ类水的目标。
- Abstract:
- In order to improve the water environment of Shenzhen River, pollutant reduction targets were estimated and the total maximum daily load (TMDL) water quality improvement measures were proposed based on analysis of water pollution characteristics and pollution sources. The DO concentration in the water was low, the ammonia nitrogen and total nitrogen in 71% of the cross section exceeded the surface water Ⅴ class standard, and the ammonia nitrogen and total nitrogen increased along the direction of the river. Sewage, industrial wastewater and river sediment in each administrative area were the main sources of water pollution. The pollution contribution of Futian District was the largest. The proportion of sewage discharge was 33%, and the contribution of industrial wastewater discharge to COD and ammonia nitrogen in the river reached 42% and 44%, respectively, which was the key area for pollutants traceability and interception. The remediation plan can achieve the target of completely eliminating black and odor water in 2020 and water quality reaching surface water Ⅴ class standard in 2025 through measures such as interception and dredging, sponge storage, ecological remediation and landscape construction.
更新日期/Last Update:
2020-04-01