Seawater desulfurization recovery system evaluation simulation experiment method and device
A technology for simulating experiments and restoring systems. It is used in seawater treatment, chemical instruments and methods, and water pollutants. It can solve the problems of inability to systematically evaluate the processing capacity of the device, inconvenient evaluation, and complex changes in power plant loads.
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Embodiment 1
[0029] A simulation experiment method for evaluation of seawater desulfurization recovery system, comprising the following steps:
[0030] (1) first add sodium sulfite in a part of natural seawater, obtain acid seawater after dissolving, and measure S (IV) concentration and pH value; The above-mentioned acid seawater (volume is V 1 ) is injected into the liquid storage tank through the filling port on the upper end cover of the liquid storage tank, and then add natural seawater through the filling port (the volume is V 2 ) is blended once (the volume after mixing is V 1 +V 2 );
[0031] (2) After the above filling is completed, quickly start the circulating water pump, and inject the primary mixed seawater into the oxidation tank through the circulating water pump (the liquid flow rate is Q L ), when the liquid level reaches the outlet of the oxidation tank, quickly start the aeration pump or start the DC power supply at the same time, and perform aeration chemical oxidatio...
Embodiment 2
[0037] Simulation experiment of seawater desulfurization recovery system evaluation
[0038] First use 26°C natural seawater and Na 2 SO 3 Prepare 1.27L of acidic seawater, wherein the concentration of S(IV) is 0.2g / L, and the pH is 3, fill it into the liquid storage tank, and then add 2.53L of the above-mentioned natural seawater to obtain 3.80L of once-blended seawater (acidic seawater Seawater / natural seawater is about 1:2), quickly start the circulating water pump, mix seawater once into the oxidation tank, and control Q L is 7.63L / min, when the liquid level reaches the outlet of the oxidation tank, start the aeration pump quickly to carry out aeration treatment, where Q G =3L / min, the height between the aeration head and the water outlet of the oxidation tank is 0.33m, start timing at the same time, measure and record the S(IV) concentration, pH and DO of the seawater mixed once for 1min, 2min, and 3min respectively, After reaching 3min, stop the above process. Recons...
Embodiment 3
[0048] Simulation experiment of seawater desulfurization recovery system evaluation
[0049] Use natural seawater and Na at 5°C, 10°C, 16°C or 22°C, respectively 2 SO 3 Prepare 1.27L of acidic seawater, wherein the concentration of S(IV) is 0.2g / L, and the pH is 3, fill it into the liquid storage tank, and then add 2.53L of the above-mentioned natural seawater to obtain 3.80L of once-blended seawater (acidic seawater Seawater / natural seawater is about 1:2), quickly start the circulating water pump, mix seawater once into the oxidation tank, and control QL When the liquid level reaches the outlet of the oxidation tank, start the aeration pump quickly to carry out aeration treatment or aeration combined electrochemical oxidation treatment (the anode uses electrochemically modified polyacrylonitrile-based carbon fiber brushes, and the cathode uses untreated carbon fiber brushes). Modified polyacrylonitrile-based carbon fiber brushes, the DC power supply adopts a constant current...
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