Experimental Research on the Treatment of Printing and Dyeing Wastewater Using Ultrasound Combined with Fenton Reagent

2015 ◽  
Vol 713-715 ◽  
pp. 2703-2705
Author(s):  
Ying Gang Wang ◽  
Lin Lin ◽  
Teng Fei Liu ◽  
Jin Meng Zhang
Keyword(s):  
Hydrogen Peroxide ◽  
Experimental Research ◽  
Removal Rate ◽  
Orthogonal Test ◽  
Experimental Results ◽  
Ultrasonic Power ◽  
Dyeing Wastewater ◽  
Fenton Reagent ◽  
Reaction Conditions ◽  
Printing And Dyeing Wastewater

Experimental research on the treatment of printing and dyeing wastewater has been carried out. The method of ultrasonic combined Fenton has been used.Separately by using ultrasonic and Fenton oxidation method to treat printing and dyeing wastewater, the hydrogen peroxide dosage, FeSO4•7H2O dosage, shaking time, pH value, ultrasonic time, ultrasonic power and other factors are investigated.The COD and chromaticity removal effect of printing and dyeing wastewater are calculated. The experimental results show that the above factors have a certain impact on the treatment effect. Based on these results, the orthogonal test method is used in this experiment, the optimal conditions of ultrasound combined with Fenton reagent for dealing printing and dyeing wastewater has been determined.The orthogonal experimental results show that the optimal reaction conditions of orthogonal test are below:pH value is 3, the best time for the experiment is 1.5h, hydrogen peroxide dosage is 5mL, seven water ferrous sulfate dosage is 0.7grams, ultrasonic power is 142.5W. Experiments are conducted in accordance with the best reaction conditions. On the optimal process conditions, the removal rate of COD reaches 94.6% and the chroma removal rate reaches 87.5%. The effect of using ultrasonic combined with Fenton reagent to treat printing and dyeing wastewater is better than the use of single method.

Study on Demulsification-Fenton to Deal with High Concentrations of Waster Emulsion

2013 ◽  
Vol 726-731 ◽  
pp. 2300-2304
Author(s):  
Hai Shan Dong ◽  
Jing Jing Liu ◽  
Peng Yan ◽  
Rong Yang
Keyword(s):  
Hydrogen Peroxide ◽  
Influencing Factors ◽  
Removal Efficiency ◽  
Removal Rate ◽  
Cod Removal ◽  
Fenton Oxidation ◽  
Experimental Results ◽  
Fenton Reagent ◽  
Cod Removal Rate ◽  
High Concentrations

This topic used the method of demulsification-Fenton oxidation to deal with the waste emulsion, and analyzed the influencing factors of COD removal efficiency . Experimental results show that when the dosage of demulsifier is 10g/L ,optimum aeration for 1h , dosage of Fe2+ is 500mg/L, the dosage of hydrogen peroxide is 50ml/L, After Fenton reagent has oxided for 1.5 h, the COD removal rate can up to 93.4%.

Study on Pretreatment of Dye Wastewater by Fenton Oxidation Process

2012 ◽  
Vol 627 ◽  
pp. 378-381
Author(s):  
Bi Rong Wang
Keyword(s):  
Reaction Time ◽  
Oxidation Process ◽  
Removal Rate ◽  
Fenton Oxidation ◽  
Dye Wastewater ◽  
Dyeing Wastewater ◽  
Reaction Conditions ◽  
Fenton Oxidation Process

Fenton pretreatment has been used for treating dye wastewater. The effects of the dos of H2O2 and FeSO4, reaction time and pH on the removal COD were investigated. It was found that, when the reaction conditions are as follows: COD 2850 mg/L dyeing wastewater, the dosage of H2O2 is 140mmol/L, FeSO4 17.02 mmol/L, pH 7.6, and reaction time 1.0 h, the CODcr of dye wastewater removal rate of up to 70%. Fenton pretreatment process of dye wastewater has a broad prospect.

Experimental Research of Decoloring Treatment on Vitamin B12 Wastewater

2013 ◽  
Vol 295-298 ◽  
pp. 1209-1214 ◽  
Author(s):  
Si Hang Shan ◽  
Peng Fei Fan ◽  
Yi Xing ◽  
Geng Qiao
Keyword(s):  
Waste Water ◽  
Vitamin B12 ◽  
Experimental Research ◽  
Removal Rate ◽  
Color Removal ◽  
The Other ◽  
Vitamin B ◽  
Reaction Conditions ◽  
Pharmaceutical Factory

Two kinds of vitamin B12 waste water from a pharmaceutical factory were treated separately by methods of combining micro-electrolysis with physiochemical and O3 oxidation. Effects of the reaction conditions on the removal rate of color were investigated. Results showed that the color removal rate of vitamin B12 waste water, which was treated by combined micro-electrolysis and physiochemical treatment reached 71.25%, while the color removal rate of the other waste water which treated by O3 oxidation reached 68.80%. The decolorizing treatment of those different natures of vitamin B12 waste water effectively provides a useful reference for this kind of waste water.

Study on the Flocculation Treatment of Simulative Dyeing Wastewater by the Dicyandiamide Formaldehyde Polymer

2014 ◽  
Vol 522-524 ◽  
pp. 192-195 ◽  
Author(s):  
Shan Hong Lan ◽  
Ping Ma ◽  
Hui Xia Lan ◽  
Heng Zhang ◽  
Xiu Wen Wu ◽  
...  
Keyword(s):  
Influencing Factors ◽  
Treatment Effect ◽  
Room Temperature ◽  
Removal Rate ◽  
Color Removal ◽  
Experimental Results ◽  
Dyeing Wastewater ◽  
Simulated Wastewater

The laboratory-made dicyandiamide formaldehyde polymer is used to study the effect of the flocculation treatment of simulated wastewater of You Li Su-hong EB. And the influencing factors mainly include flocculant dosage, pH and temperature. The experimental results show that when the dicyandiamide formaldehyde flocculant dosage is 8mL / L and pH is acidic or neutral, COD and color removal rate are the highest that have reached more than 70%. Besides, temperature has little effect on the flocculation treatment, and room temperature is enough to make the treatment effect good. Finally compared with the commonly used flocculant PAC, dicyandiamide formaldehyde polymer treatment effect is better with less addition.

Treatment of Printing and Dyeing Wastewater by the Iron Scurf and Flue Dust Internal Electrolysis Method

2011 ◽  
Vol 415-417 ◽  
pp. 438-441
Author(s):  
Jin Xia Yan ◽  
Dong Fang Li ◽  
Shao Feng Dong
Keyword(s):  
Reaction Time ◽  
Electric Conductivity ◽  
Removal Rate ◽  
Dyeing Wastewater ◽  
Optimum Conditions ◽  
Printing And Dyeing Wastewater ◽  
Flue Dust ◽  
Internal Electrolysis ◽  
Electrolysis Method ◽  
Cod Removal Rate

The printing and dyeing wastewater was treated by internal electrolysis method. The results show the chromaticity removal rate was up to 98.53 percent and COD removal rate 85.98 percent under the optimum conditions of wastewater pH 4, reaction time 30 minutes, the electric conductivity 1450μm/cm, the value BOD5/COD increases from 0.34 to 0.51. Moreover, the pH, Fe2+ concentration and absorbance of wastewater changed in the process, the mechanism of that was also analyzed.

Study on Treatment of Printing and Dyeing Wastewater by Magnetic Seed Coagulation - High Gradient Magnetic Separation

2011 ◽  
Vol 71-78 ◽  
pp. 2689-2694 ◽  
Author(s):  
Wen Song Chen ◽  
Hua Shi Lin ◽  
Shuo Feng Zhang
Keyword(s):  
Magnetic Separation ◽  
Magnetic Particle ◽  
Removal Rate ◽  
Steel Wire ◽  
Dyeing Wastewater ◽  
Technological Parameters ◽  
High Gradient Magnetic Separation ◽  
High Gradient ◽  
Printing And Dyeing Wastewater ◽  
Varied Chemical

Treatment of printing and dyeing wastewater by the device of high gradient magnetic separation (HGMS) developed by author was tested. The results showed that printing and dyeing wastewater contained varied chemical composition and whose initial concentration of chromaticity and COD were 800 and 565mg/L respectively can be well cleaned by Fenton oxidation—magnetic seed coagulation—HGMS. The removal rate of chromaticity and COD was up to 92.6% and 79.5% respectively. The effluent can meet the national drainage criterion. The optimum technological parameters are as follows: pH=6, [FeSO4·7H2O]=250mg/L, [H2O2]=1.3ml/L, [PAM]=0.75 mg/L, dose of magnetic particle W=150mg/L,current intensity I=8A, current velocity U=2.420L/min, packing density of stainless steel wire R=1.00%-1.43%. Recovery rate of magnetic particle was up to 90% by regenerated technique of chemistry in combination with physics.

scholarly journals Preparation of Mn/Mg/Ce Ternary Ozone Catalyst and Its Mechanism for the Degradation of Printing and Dyeing Wastewater

2022 ◽  
Vol 9 ◽  
Author(s):  
Shuai Zhang ◽  
Huixue Ren ◽  
Kaifang Fu ◽  
Wenqing Cheng ◽  
Daoji Wu ◽  
...  
Keyword(s):  
Methyl Orange ◽  
Catalytic Oxidation ◽  
Removal Rate ◽  
Dynamic Test ◽  
Oxygen Demand ◽  
Dyeing Wastewater ◽  
Printing And Dyeing Wastewater ◽  
Treatment Conditions ◽  
Nano Alumina ◽  
Catalyst Dosage

The printing and dyeing wastewater produced by different dyes, as well as different printing and dyeing processes, have different components. These wastewater have high toxicity, high organic concentration, and deep chromaticity. Ozone catalytic oxidation is a very promising technical method for wastewater treatment. In this paper, Mn/Mg/Ce ternary catalyst was prepared, and the ozone catalytic oxidation treatment of actual and simulated printing and dyeing wastewater was performed to study the performance of four different carrier catalysts, namely, molecular sieve (MS), silica gel (SG), attapulgite (ATP), and nano alumina (Al2O3), by simulated dynamic test. The effects of reaction time, pH, and catalyst dosage on methyl orange degradation were studied. The results showed that under the optimum treatment conditions (120 min, pH 11, and 12.5 g/L catalyst dosage), the degradation rate of methyl orange reached 96% and the removal rate of the chemical oxygen demand of printing and dyeing wastewater reached 48.7%. This study shows that the treatment effect of ozone catalytic oxidation on printing and dyeing wastewater is remarkably improved after catalyst addition. This study provides a new choice of ozone catalyst for the degradation of printing and dyeing wastewaters in the future.

Different Chemical Oxidant of Benzene Series Pollution Site Repair Effect

2014 ◽  
Vol 989-994 ◽  
pp. 564-567
Author(s):  
Ding Long Li ◽  
Xin Lei Fang ◽  
Min Da Yu ◽  
Hao Lv ◽  
Yan Yang
Keyword(s):  
Hydrogen Peroxide ◽  
Contaminated Soil ◽  
Removal Rate ◽  
Antioxidant Effect ◽  
Soil Bioremediation ◽  
Sodium Persulfate ◽  
Combined Pollution ◽  
Fenton Reagent ◽  
Experiment Research ◽  
Benzene Series

this study intends to compare through the experiment research of potassium permanganate, Fenton reagent, sodium persulfate, hydrogen peroxide, four kinds of commonly used oxidant chlorobenzene in contaminated soil, the removal effect of O-O-dichlorobenzene;, selected a typical ground soil bioremediation is the best antioxidant effect. Research under the condition of different on the dose, 4 kinds of oxidants to chlorobenzene and O-O-dichlorobenzene; removal effect. Combined pollution ground soil properties screen of chlorobenzene in contaminated soil, the highest removal rate of dichlorobenzene oxidant and best delivery dosage, to apply typical ground soil bioremediation, the results show that the effect is the best Kmno4.

The Treatment of Printing and Dyeing Wastewater by Using Coagulation and Fenton Reagent Oxidation Combined Process

2011 ◽  
Vol 331 ◽  
pp. 368-371 ◽  
Author(s):  
Li Ping Wang ◽  
Yu Chuan Guo ◽  
Yi Zhong Chen ◽  
Er Deng Du ◽  
Yong Jing Mao
Keyword(s):  
Reaction Time ◽  
Room Temperature ◽  
Ph Value ◽  
Dyeing Wastewater ◽  
Fenton Reagent ◽  
Complex Composition ◽  
Combined Process ◽  
Printing And Dyeing Wastewater ◽  
Inorganic And Organic

It is difficult to treat printing and dyeing wastewater, for printing and dying wastewater features complex composition, high chromaticity and many toxic substances.The paper studied the effect of the compound of inorganic and organic coagulant with Fenton reagent on the treatment of printing and dyeing wastewater. The effect of other factors were also investigated, including pH value, flocculants, Fenton reagent and reaction time. The results showed that, under the conditions of room temperature, pH 9, PAFCS dosage 100mg/L, PAMC 4mg/L, pH 4, H2O2 dosage 1.0mL/L, FeSO4•7H2O dosage 150 mg/L, the reaction time 60 min, the CODCr removal was high over 91%, and the color was also significantly removed.

Sign in / Sign up

Export Citation Format

Share Document