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The characteristics of river water quality
The water has a certain flow velocity and it cannot completely intercept the sewage. There is sewage in the coast with thick sediment. Due to serious endogenous pollution, the water is rich in nutrients such as nitrogen and phosphorus, which cause eutrophication. The seasonal variation of water level is obvious.
General treatment method:
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Conventional methods and their limitations
General treatment method:
1. Physical restoration: dilution of water diversion, dredging of sediment, etc.
2, Chemical repair: water aeration and oxygenation technology, the application of chemical reagents (such as flocculants, etc.)
The limitations of conventional processing methods
1. Physical methods: water dilution has a certain negative impact on the waters which will lead to changes in the water ecosystem. This method does not cure the problem and cannot solve the problem fundamentally. The dredging cost of the sediment is high with a large amount of work is large and the excavation of the sediment needs to be treated separately.
2. Chemical method: since the carrier material has its saturated adsorption capacity, a large amount of chemical sludge will be discharged. If improperly disposed, it will lead to secondary pollution and the chemical reagent itself will remain in the water, causing secondary pollution.
BF ecological restoration process
BF ecological restoration process chart
Features: the main purpose is to repair and construct the water ecosystem and restore the self-purification ability of the water. It has little influence on environmental and doesn’t produce secondary pollution or lead to the transfer of the pollutants. It can reduce the concentration of pollutants. It is convenient to construct with long long-lasting effect.
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