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After the filtration, will filtrate to assume the orange red the acidification to the solution, again will filter the solid filters out, with the laundering, the ether will wash the brown color solid, will dissolve this solid in the water moves in NH3 the nature, the activated carbon decolorizes, th

After filtering, acidification to landfill leachate solution is orange-red, and then filter filters out solids, water, ether washed khaki solid, the solid is soluble in water in NH3 tonality, active carbon decoloration, filtering, white solid.