Silicon removal method for wastewater discharged by aerospace furnace gasification process

Silicon removal method for wastewater discharged by aerospace furnace gasification process

The invention relates to a silicon removal method for wastewater discharged by an aerospace furnace gasification process, belongs to the technical field of coal liquefaction sewage treatment, and solves the problem that the total silicon of the wastewater discharged by the aerospace furnace gasifica...

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Hauptverfasser: WANG WENBIN, ZHANG LILI, SONG LIUFANG, PEI YUFEI, CHEN HUIGANG, SI JUN, GUO XIAOXIAO, WANG BO, WANG HONGBIN, ZHANG GUOHUA
Format: Patent
Sprache:chi ; eng
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CHEMISTRY
METALLURGY
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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creator WANG WENBIN
ZHANG LILI
SONG LIUFANG
PEI YUFEI
CHEN HUIGANG
SI JUN
GUO XIAOXIAO
WANG BO
WANG HONGBIN
ZHANG GUOHUA
description The invention relates to a silicon removal method for wastewater discharged by an aerospace furnace gasification process, belongs to the technical field of coal liquefaction sewage treatment, and solves the problem that the total silicon of the wastewater discharged by the aerospace furnace gasification process in the prior art does not reach the standard and the long-period operation of a systemcannot be ensured. A method combining magnesium agent silicon removal, aluminum salt coagulation and a solid-liquid separator is adopted, under the conditions that the sludge discharge amount is reduced and a settling tank with a large occupied area is not used, soluble silicon dioxide and part of colloidal silicon in water are effectively removed, and the concentration of silicon dioxide in recycled water is controlled to be 20 mg/L. The method is obvious in effect, simple in technological process, small in occupied area and convenient and reliable to control, the requirement of industrial enterprises for reducing th
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TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
title Silicon removal method for wastewater discharged by aerospace furnace gasification process
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