Study On Removal Of Phenol From Slightly Polluted Water

Slightly polluted water of organic matter,especially the organic compounds in the drinking water has the serious influence to people's physical and mental health.The removal of organic matter to become the current problem urgently to be solved in water treatment field.Conventional water treatment technology,such as flocculation precipitation-filter-disinfection)just to transform organic matter from one form into another form,cannot be thoroughly the degradation of organic pollutants,easy to produce secondary pollution.Among various kinds of slightly polluted water treatment technology,based on the simulation of the phenol wastewater treatment,this paper studies the advanced oxidation technology,hydrogen peroxide,ultrasound,fenton reagent effects on phenol treatment.First this paper introduces the principle of the advanced oxidation technologies and advanced oxidation is widely used in water treatment.And according to the principle and experimental conditions,select the hydrogen peroxide and ultrasound,fenton reagent,such as the advanced oxidation technologies of phenol wastewater treatment.Experimental results show that:1.Different oxidation technology treating of phenol water experiments showed that the phenol water samples prepared with purified water,room temperature,single use of 30%hydrogen peroxide,adding the amount of 1 mL/L,the reaction time of 90 min,1 mg/L of phenol in water,the degradation rate reached only 33.5%;Separately using ultrasonic processing phenol watery,power is 60%,the reaction time for 60 min,phenol and COD degradation rate achieves the highest,reached 7.60% and 25.3% respectively;Hydrogen peroxide and ultrasound treatment of phenol water samples,the phenol degradation rate can be increased to 39.02%;Using hydrogen peroxide,ultrasound alone or combined to deal with both water containing phenol,the effect is not ideal.And fenton reagent has good effect on the degradation of phenol water samples,this paper mainly studies the initial concentration ofphenol water,the best proportion of Fe2+ and hydrogen peroxide,and the influence of processing time on the degradation rate.For different concentrations of containing phenol water samples,the best Fe2+ and the ratio of hydrogen peroxide is also different.On the influence of different concentration of phenol degradation of fenton reagent rate dynamics research,the pseudo-first-order kinetics.2.Fenton reagent and the experimental results show that activated carbon detection processing phenol water with water water,water and other compound phenol watery,separate fenton reagent method for processing,as a result of the influence of interfering ions,the highest degradation effect is only 26.4%,to meet the water quality standard,therefore the introduction of activated carbon and fenton reagent combined treatment of phenol water samples,good treatment effect,degradation rate could reach 96.5%.In the process of handling of water samples,phenol treatment time,fenton reagent,and activated carbon dosing sequence,factors such as different water samples will affect the treatment effect.3.Finally analyzed by high performance liquid chromatography(HPLC)analysis of fenton reagent degradation of phenol in the middle of the product,and the generation of intermediate time,produce the order.