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- W2370779968 abstract "The design theory of orthogonal experimental was applied to study the coal fly ash treat waste water.adding fusing agent(Na_2CO_3) into coal fly ash and melting at 800-900 ℃ temperature,then,mixing with NaOH solution.It can be concluded that the fire modified coal ash is the best sorbent for heavy metal in waste water from contrasting with several experiments.The best modified product ratio that coal fly ash to treat waste water is that the amount ratio of primary coal fly ash to Na_2CO_3 is 1∶2 and concentration of NaOH is l mol/L with drying temperature is 100 ℃.The fire modify method was used and using the modified coal fly ash to treat simulation waste water.It can be seen from the results from the scanning electron microscopy and X-ray diffraction of primary and modified coal fly ash that the adsorbing tunnel become more and more and specific area increased with temperature increased,at the same time,the new mineral phases(type A and type Na-P zeolite) were produced and increased the absorbing ability.However,when temperature above 300 ℃,the adsorbing tunnel became cave or block for burning,so adsorbing ratio decreased." @default.
- W2370779968 created "2016-06-24" @default.
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- W2370779968 date "2006-01-01" @default.
- W2370779968 modified "2023-09-23" @default.
- W2370779968 title "Fire Modification of Coal Fly Ash and its Application in the Waste Water Treatment" @default.
- W2370779968 hasPublicationYear "2006" @default.
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