Novel treatment method for pentachlorophenol-containing wastewater
A treatment method, pentachlorophenol technology, applied in the direction of light water/sewage treatment, oxidized water/sewage treatment, mechanical oscillation water/sewage treatment, etc., can solve the problem of no PCP wastewater being retrieved, and achieve the promotion of photo-Fenton reaction Efficiency, wide range of sources, and simple process
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Embodiment 1
[0035] Under ultrasonic radiation conditions (ultrasonic power 200W, frequency 40kHz), 0.4g s-Fe 0 Particles (particle size: 3-5 mm), 10 μL H 2 o 2 Solution (30wt% aqueous solution) and RhB solution were added to the PCP solution (the final PCP concentration was 10ppm, the volume was 50mL, and the solution temperature was 30°C; at this time, the concentration of RhB was also 10ppm). Philae xenon lamp light source PLS-SXE300, the filter cut-off wavelength is λ>420nm) reaction, no RhB solution reaction system was used as the reaction control system, the sample was centrifuged and the concentration of RhB and PCP in the solution was monitored by HPLC. Sponge iron is magnetically separated and activated with 2% (v / v) dilute hydrochloric acid ultrasonic (200W, 1min) for recycling.
[0036] The experimental results showed that without adding RhB, the degradation rate of PCP in the wastewater solution was 12.63% after 60 minutes of reaction. In the case of adding RhB, the degradat...
Embodiment 2
[0038] Under ultrasonic radiation conditions (ultrasonic power 200W, frequency 40kHz), 0.4g s-Fe 0 Particles (particle size: 3-5 mm), 10 μL H 2 o 2 The solution (30wt% aqueous solution) was added to the PCP solution (50mL, 10ppm, the solution temperature was 30°C), and then RhB and crystal violet (CV) were added to the PCP solution (the final concentrations of RhB and CV were both 10ppm), The reaction was carried out under the condition of visible light radiation (Beijing Porphyra xenon lamp light source PLS-SXE300, the cut-off wavelength of the filter is λ>420nm). After the reaction, samples were centrifuged and HPLC was used to analyze the concentration of PCP, RhB and CV remaining in the solution, the sponge iron was magnetically separated, activated with 2% (v / v) dilute hydrochloric acid ultrasonic (200W, 1min), and recycled.
[0039]The experimental results show that: in the system of adding CV dye, the degradation rate of PCP in the wastewater solution after 60 minutes...
Embodiment 3
[0041] Under ultrasonic radiation conditions (ultrasonic power 200W, frequency 40kHz), 10μL H 2 o 2 Solution (30wt% aqueous solution) and RhB solution were added to PCP solution (final PCP concentration was 10ppm, volume was 50mL, solution temperature was 30°C; RhB concentration was 10ppm), and sponge iron (0.4g) and ferrous iron were added respectively Salt (Fe 2+ The final concentration is 2.3ppm), reacted under the condition of visible light radiation (Beijing Bofeilai xenon lamp light source PLS-SXE300, the cut-off wavelength of the filter is λ>420nm), the sample was centrifuged and the concentration of RhB and PCP in the solution was monitored by HPLC. Sponge iron is magnetically separated and activated with 2% (v / v) dilute hydrochloric acid ultrasonic (200W, 1min) for recycling.
[0042] The experimental results showed that the degradation rates of PCP and RhB were 51.03% and 54.09% after 10 minutes of reaction in the reaction system with ferrous ions added; after that...
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