Three-dimensional eutrophication model and application to Taihu Lake, China

Mao, Jiayuan; Chen, Qiuwen; Chen, Yongcan

doi:10.1016/s1001-0742(08)60044-3

Cited by 81 publications

(43 citation statements)

References 10 publications

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“…Chung et al (2009) examined three different sediment resuspension models that were used to simulate nutrient distributions in the highly eutrophic and wind-dominated Salton Sea in the United States [37], providing the following results: nsutrients in both particulate and dissolved forms induced by sediment resuspension events are presently the most important factor in the Sea's nutrient cycling; lower trophic status might be presented if fewer sediment resuspension events occur due to lower wind speeds and reduced fetch length; and higher wind speed tends to cause more sediment resuspension, influencing the circulation pattern of contaminants in the water system. Moreover, Mao et al (2008) applied a model coupling the biological processes and hydrodynamics to the Taihu Lake (in China) [58], which has suffered from severe eutrophication events over the past two decades. The results show that there meteorological forces had a significant impact on the temporal variations of eutrophication dynamics.…”

Section: Wind Effectmentioning

confidence: 99%

The Potential Impacts of Climate Change Factors on Freshwater Eutrophication: Implications for Research and Countermeasures of Water Management in China

et al. 2016

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Abstract:Water eutrophication has become one of the most serious aquatic environmental problems around the world. More and more research has indicated climate change as a major natural factor that will lead to the acceleration of eutrophication in rivers and lakes. However, understanding the mechanism of climate change's effect on water eutrophication is difficult due to the uncertainties caused by its complex, non-linear process. There is considerable uncertainty about the magnitude of future temperature changes, and how these will drive eutrophication in water bodies at regional scales under the effect of human activities. This review collects the existing international and domestic literature from the last 10 years, discussing the most sensitive factors of climate change (i.e., temperature, precipitation, wind, and solar radiation) and analyzing their interaction with water eutrophication. Case studies of serious eutrophication and algal bloom problems in China are discussed to further demonstrate the conclusion. Finally, adaptation countermeasures and related implications are proposed in order to foster the development of sustainability strategies for water management in China.

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Section: Wind Effectmentioning

confidence: 99%

The Potential Impacts of Climate Change Factors on Freshwater Eutrophication: Implications for Research and Countermeasures of Water Management in China

et al. 2016

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“…Bands with intensities a 0.05 were excluded from the analysis. The ShannonWiener index of diversity (H) and the Simpson index of dominance (S) [31] were used to express the diversity of the bacterial community 1) .…”

Section: Analysis Of Microorganism Community By Pcr-dggementioning

confidence: 99%

“…Nowadays, eutrophication of drinking water supplies has become a problem, not only in the developed countries, but also in the developing ones such as China [1]. For instance, Tai Lake in China, the Gulf in Finland and Japan's Biwa Lake all show signs of eutrophication, which has resulted in cyanobacterial blooms and the accumulation of odor producing matter.…”

Section: Introductionmentioning

confidence: 99%

Development of an Advanced Biological Treatment System Using Bioaugmentation Technology for the Treatment of Eutrophic Drinking Water Resources

Meng

Zhao

Lü³

et al. 2009

CLEAN Soil Air Water

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Drinking water supplies around the world are increasingly at risk from eutrophication. However, many of the technologies developed in the laboratory to control water eutrophication have not been successfully applied in situ. To explore an in situ water treatment strategy for treating eutrophic drinking water resources, a laboratory system simulating a real river way was designed and used to treat raw eutrophic drinking water. The system included several removable modules and bioaugmentation technology to ensure the formation and maintenance of the biofilm, and enhance treatment efficiency. During operation of the system, the biofilm was successfully formed and maintained under a continuous hydraulic shock loading up to 14.4 m 3 m -2 d -1 , and the average removal rates of chlorophyll a, TN, and TP were 83.85, 53.44 and 70.78%, respectively. The biofilm had a high phosphorus storage capacity, even when phosphorus loading increased to 15 -20 mg/L, the removal was constant at around 10 mg/L. Moreover, PCR-DGGE analysis demonstrated that the bioaugmented bacteria, including Flavobacterium and Pseudomonas, successfully colonized the biofilm inside the system. Furthermore, the original community of microorganisms from the raw drinking water was maintained, which is an important aspect of the in situ treatment process. In conclusion, this strategy successfully treated raw eutrophic drinking water in the simulated river way. Its efficacy, low operation cost and application to water safety make this system a promising prospect for controlling eutrophication of drinking water resources.

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“…By 2000, 10 % of the gross domestic product (GDP) of China was generated in this basin, while it accounted for only 0.4 % of the land surface and 3 % of the population (NSB 2000). Lake Taihu, located in the Taihu Basin, is the third largest lake in China with a water surface area of 2,338 km 2 , an annual average water depth of 1.9 m, and a mean hydraulic retention time of 300 days (Mao et al 2008). It provides critical services to China's economy.…”

Section: Introductionmentioning

confidence: 99%

Correlations between algae and water quality: factors driving eutrophication in Lake Taihu, China

Tang

et al. 2013

Int. J. Environ. Sci. Technol.

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Rapid population increase and economic growth in eastern China has lead to the degradation of many water bodies in the region, such as Lake Taihu, the third largest freshwater lake in China. Using data from recent investigations, the correlations between algae (measured as chlorophyll-a) and water quality indices in Lake Taihu were described by multivariate statistical analyses, and the key driving factors for the lake eutrophication were identified by principal component analysis. Results revealed strong spatiotemporal variation in the correlations between algae and water quality indices, suggesting that the limiting factor for the dominant algae growth depends on seasonality and location and it is necessary to reduce both nitrogen and phosphorus inputs for a long-term eutrophication control in this hyper-eutrophic system. Water temperature was another important controlling factor for algal growth in the lake. Using principal component analysis, nutrient contaminations from anthropogenic and natural inputs were identified as the key driving factor for the water quality problems of the lake. Moreover, five principal components were extracted and characterized with high spatial and seasonal variations in Lake Taihu. The key driving factors were believed to influence spatial variations including heavily polluted areas located in the northern and northwestern parts of the lake, where many manufacturing factories were built and wastewater from domestic and industrial plants was discharged. Based on this analysis, attention should be paid to effective land management, industrial wastewater treatment, and macrophytic vegetation restoration to reduce the pollutant loads and improve water quality. Principal component analysis was found to be a useful and effective method to reduce the number of analytical parameters without notably impairing the quality of information in this study.

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Three-dimensional eutrophication model and application to Taihu Lake, China

Cited by 81 publications

References 10 publications

The Potential Impacts of Climate Change Factors on Freshwater Eutrophication: Implications for Research and Countermeasures of Water Management in China

The Potential Impacts of Climate Change Factors on Freshwater Eutrophication: Implications for Research and Countermeasures of Water Management in China

Development of an Advanced Biological Treatment System Using Bioaugmentation Technology for the Treatment of Eutrophic Drinking Water Resources

Correlations between algae and water quality: factors driving eutrophication in Lake Taihu, China

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