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Class laboratory in a university environment for integrated wastewater sampling and analysis, the use of fly ash and modified fly ash adsorption integrated laboratory wastewater treatment , in order to improve the comprehensive utilization of fly ash , to prevent water pollution by waste protection of agricultural water resources purposes. Paper describes the laboratory wastewater sources , composition, status of process, physical and chemical properties of fly ash , mineral composition , the comprehensive utilization of fly ash situation especially in water treatment applications . Discusses the fly ash dosage, pH value of wastewater , adsorption time , fineness of fly ash and adsorption temperature and other factors on the impact of COD and TN ; fly ash were acid-modified , alkali modification, and limestone blending and mixing with the red mud modified . And the effects of original fly ash and modified fly ash laboratory comprehensive wastewater treatment effect. Study of modified fly ash adsorption mechanism . The experimental results showed that: ( 1 ) Environmental class laboratory comprehensive wastewater discharges less emission is not continuous. However, the pH of acidic wastewater , COD, TN, TP concentrations are very high. Low content of heavy metal ions . ( 2 ) original fly ash in wastewater pollutant removal efficiency and the concentration of pollutants in wastewater , and only in the case of low concentrations of pollutants , contaminants fishes fly ash has strong adsorption removal. Removal rate of COD up to 59.65%, TN is up to 51.47%, TP of up to 47.03%, Cu2 of up to 83.33%, Pb2 of up to 75.34%, Zn2 of up to 54.26% . ( 3 ) Modified Fly higher concentrations of pollutants in waste water pollutants have strong adsorption removal. Removal rate of COD up to 88.06%, TN is up to 74.10%, TP of up to 71.28%, Cu2 of up to 92.31%, Pb2 of up to 80%. Zn2 of up to 100%
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