Multifunctional water bloom growth and extinction experiment research system under influence of hydraulic engineering and operation method thereof

Abstract

The invention discloses a multifunctional water bloom growth and extinction experiment research system under influence of hydraulic engineering. The multifunctional water bloom growth and extinction experiment research system comprises a pretreatment system, a flowing water circulation experiment table, a flowing water control system and a monitoring analysis system, wherein the pretreatment system is used for providing algae containing experiment water with different background concentration for the flowing water circulation experiment table; the flowing water circulation experiment table is used for achieving an algae nondestructive growth environment under a smooth continuous water flow environment; the flowing water control system is used for simulating a flowrate variation process of the incoming flow of upstream and downstream hydraulic engineering of a channel reservoir by regulating water supply flow of a water supply channel according to scheduling working conditions of upstream and downstream hydraulic engineering set in the experiment; the monitoring analysis system comprises a water level sensor, a flow velocity meter, a flowmeter, a video sensor, a chlorophyll fluorescence and a computer. The multifunctional water bloom growth and extinction experiment research system can perform quantitative experiment research on complex hydrodynamic condition changes under influence of hydraulic engineering, algae growth changes under flowing water conditions, effect analysis and predication of water bloom inhibition through optical scheduling of upstream and downstream single or step hydraulic engineering, and the like.

Description

technical field [0001] The invention relates to a multifunctional experimental research system for the generation and consumption of blooms under the influence of water conservancy projects, belonging to the technical field of water conservancy and hydropower projects and water environment experiments. Background technique [0002] Algal blooms are a common problem in surface water around the world, and more than half of the lakes and reservoirs in my country have algal blooms. The excessive reproduction and accumulation of algae in the water body will form algae blooms, which will cause adverse effects on society, economy, ecology, production, life, etc. It is difficult to supply large areas of drinking water, and the cost of treatment is difficult to estimate. On the other hand, a large number of water conservancy projects have been built or are under construction in major river basins in my country, and the threat of human activities to the water quality of rivers and la...

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Problems solved by technology

[0005] (1) One type of technology is to use small containers, such as test tubes, beakers, and reaction columns, to cultivate and observe the physiological changes of algae under different environmental conditions; this type of method is simple and easy to implement, but focuses on the analysis of factors such as light and temperature. The influence of growth does not involve the influence of hydrodynamic changes on the production and elimination of blooms; although there is a patent 201310001856.6 that proposes a method for studying the influence of turbulent pulsation intensity on algae growth and dominant algae succession, it is limited to placing vibrating grids in the water tank. , not for the effect of large-scale horizontal convection;

[0006] (2) Another method adds the function of simulating the horizontal flow of water body on the basis of the above technology, which can be used to simulate the influence of different flow rates and different water quality conditions on the growth of algae, but this type of method needs to use traditional pumping equipment such as water pumps or water trucks Driving the water body to flow in one direction or circulation will make the flow velocity distribution in the tank uneven, and will also affect the continuity of the hydrodynamic environment for algae cultivation, and will cause greater damage to the algae cells in the water, which will greatly affect the experimental results , is an algae damage test method;

[0007] (3) The existing technology can only simulate the growth environment of algae under certain ideal flow rate conditions, which is quite different from the actual situation, and cannot reflect the effects of common water conservancy projects on the hydrodynamic conditions and the process of algal blooms in reality. The multiple effects of exerting or disturbing, or inducing, or enhancing, or inhibiting, etc., cannot reflect the reality that the problem of surface water blooms in my country is largely affected by water conservancy projects, and it is difficult to optimize the dispatch of water conservancy projects to suppress the effects of algal blooms Technical R&D support

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