Study On Treatment Of High Salinity Organic Wastewater By Glow Discharge Plasma

This research mainly by glow discharge plasma technology as a means to simulate high salinity organic wastewater, to simulate a dye AR73 as the research object, and assisted by several simulated dye rhodamine B and other 9 simulated dye sample properties through the analysis of the dilution, in contrast, mathematical model based on ultraviolet spectrophotometric technique and a variety of cross application, and on the basis of the original sodium sulfate electrolyte, electrolyte and catalysts for the improved optimization, has carried on the comparative analysis with the result of the experiment, the main research conclusions are as follows:?1?The effect of the removal of dyes can reach 87% of the ideal: in Acid Red AR73 analog printing as the main body of water pollutants to investigate the influence of certain factors on the degradation of dye. If only by the glow discharge plasma treatment method AR73 degradation rate effect is more ideal, it can reach nearly 87%.?2?Other dye Rhodamine B and other removal can reach 96.4% 98.2% :? 1? Rhodamine B is a simulation of printing and dyeing wastewater discharge 30 min removal rate of 98.2%?2? by RB74 for the simulation of printing and dyeing wastewater discharge 30 minutes removal rate of 96.4%?3? by RR24, AB25, AB40, AB62, AB113, AB193 and other simulation dyeing wastewater also carried out the corresponding analysis removal effect is obvious.?3?Na₂SO₄ electrolyte degradation analysis is preferable: when the electrolyte is added when the sodium glow discharge plasma technology dye degradation in water, specifically examined the current, voltage, pH value, and when the addition of hydrogen peroxide degradation effect. The results show that the current and voltage in 525 V, 0.1A degradation is better. The study showed that the pH of the degradation rate of cases: 40 min before the impact of 5% of the gap value, when the gap between the value of 40 min after almost negligible. Degradation glow discharge is preferable because the generated hydrogen peroxide and hydroxyl radicals colored wastewater degradation.?4?NaCl electrolyte degradation analysis: When the added electrolyte is sodium chloride treated water AR73, specifically investigated the influence of different electrolyte concentration and pH on degradation. The results showed that:?1? Other things being equal, sodium chloride and sodium sulfate electrolyte compared to faster degradation rate of sodium chloride, the main by-product is hypochlorous acid.?2? pH value will increase the reaction time becomes smaller.?5?Addition of the catalyst can significantly improve the dye wastewater removal: glow discharge plasma synergistic addition of a catalyst to increase the degradation efficiency, mainly through the preparation of the catalyst using the SBA-15 attached thereto aluminum sulfate to achieve. The results showed that: after addition of the catalyst will be more significant degradation rate increase, indicating that this method of increasing the reaction rate is possible, not only to meet the situation laboratory simulation dyeing wastewater, the same can be applied to printing and dyeing wastewater area is large, It can greatly reduce the human, material and financial inputs, indicating that the method is suitable for high-color printing and dyeing wastewater treatment.