ZHANGXue,SUNYing,YUEJia-ni,et al.Causes of Algal Bloom in the Urban River In Summer and Its Control Strategy[J].China Water & Wastewater,2023,39(7):76-80.
Causes of Algal Bloom in the Urban River In Summer and Its Control Strategy
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第7期
Page:
76-80
Column:
Date of publication:
2023-04-01
- Abstract:
- Qingnian River is a tributary of Dongjiang River, and the main drinking water source of Huizhou. The water quality of downstream river deteriorated due to the influence of urbanization, and the river basically recovered its function after the implementation of the sewage interception project. However, the algae bloomed at noon in some parts of the downstream river for several days since late September 2019. To solve this problem, pollution tracing and sampling were carried out in the polluted section during the algae bloom, so as to provide scientific basis for the subsequent control measures. Sediment pollution was the main cause of algae bloom. Suitable meteorological and hydrodynamic conditions aggravated algae migration and accumulation to the surface during noon. The algal cells continued to proliferate, and the range of influence was still expanding. To control algal bloom, it is recommended to dredge the polluted river reaches in time and combine water replenishment and ecological measures to enhance water mobility and vitality, especially to strengthen the management of the whole basin.
Last Update:
2023-04-01