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In view of the possibility of Phenol pollution accident existing in source water, experimental study on the application of powdered activated carbon (PAC) regarded as an emergency way to Phenol pollution treatment is performed in this article, taking the water from Songhua River as raw water. Comparing the Phenol adsorption efficiency of four types of powdered activated carbon through static tests...
The research studied enhanced treatment of sewage from discharging points of rivers by biofilm process dosing with enzyme and the effect of phenol on removal rates of the main pollution indexes, and investigated promotion effect of enzyme (including the laboratory developed compounded enzyme and the foreign composite enzyme) on treatment of sewage by biofilm process. The research results indicated...
The research studied enhanced treatment of sewage from discharging points of rivers by biofilm process dosing with enzyme and the effect of phenol on removal rates of the main pollution indexes, and investigated promotion effect of enzyme (including the laboratory developed compounded enzyme and the foreign composite enzyme) on treatment of sewage by biofilm process. The research results indicated...
A strain of phenol-degraded bacterium was isolated from polluted river bank nearby a steel plant. The isolate was identified as Pseudomonas sp. by 16S rDNA sequence and biochemical characteristics analysis. Experiments showed, Under the conditions of incubation amount of 1%, The initial pH of culture medium in the range of 5.5~7.5 and culture temperature 30~35°C, This Phenol-degraded bacterium was...
Contaminants in wastewater influenced oxygen transfer in aeration process greatly. The effects of different typical contaminants on oxygen transfer in microbubble aeration were investigated and compared with traditional bubble aeration, including surfactant SDBS, soybean oil, phenol and nitrobenzene as well as kaolin. The results indicated that these contaminants showed different effect on oxygen...
In this paper, the emergent treatment for raw water from upper-reach of Huangpu river polluted by phenol was studied through small scale and pilot experiments. The removal capacities for volatile phenol of individual coagulation, individual powdered activated carbon (PAC) adsorption and PAC adsorption-flocculation process were examined, and the optimum technological parameters for emergent treatment...
The degradation and its kinetics of chlorine chlorination of phenol in disinfection process was studied. The influencing factors were investigated, such as chlorine dosage, temperature and background organic compound and so on. The experimental results showed that the degradation of phenol by chlorine followed second-order kinetics. The temperature influenced the reaction sharply, and it followed...
The effect of preoxidation Yellow River with light polluted water by composite potassium permanganate process are studied in the text. The best adding quantity of composite potassium permanganate is 1.5-3.0 mg/l, PAC as the flocculant, the best adding quantity is 60 mg/l. Under these conditions, pretreat Yellow River with mic-polluted water which the results show that permanganate preoxidation obviously...
High standards of drinking water quality and growing man-caused pollution of the environment require new technologies of water treatment that would allow to increase the efficiency of water purification and not to contribute any impurities by adding chemical reagents during treatment. Highly efficient are the technologies of simultaneous action of several factors, such as ultraviolet radiation and...
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