工业水处理
工業水處理
공업수처리
INDUSTRIAL WATER TREATMENT
2014年
8期
59-61
,共3页
水热合成%凹土%苯胺废水
水熱閤成%凹土%苯胺廢水
수열합성%요토%분알폐수
hydrothermal synthesis%attapulgite%aniline wastewater
凹土基滤料经水热固化后，微观结构从棒晶状转变成片状，抗压强度显著增加，比表面积明显增大，孔径略有减小。采用水热固化后的凹土滤料对苯胺进行吸附，8 h前处于快速吸附阶段，12 h时达到平衡，单位吸附量为49.34 mg/g；pH=6时吸附效果最好。对于低浓度的苯胺溶液，滤料投加量为20 g/L时去除率最大，达到79.4%。
凹土基濾料經水熱固化後，微觀結構從棒晶狀轉變成片狀，抗壓彊度顯著增加，比錶麵積明顯增大，孔徑略有減小。採用水熱固化後的凹土濾料對苯胺進行吸附，8 h前處于快速吸附階段，12 h時達到平衡，單位吸附量為49.34 mg/g；pH=6時吸附效果最好。對于低濃度的苯胺溶液，濾料投加量為20 g/L時去除率最大，達到79.4%。
요토기려료경수열고화후，미관결구종봉정상전변성편상，항압강도현저증가，비표면적명현증대，공경략유감소。채용수열고화후적요토려료대분알진행흡부，8 h전처우쾌속흡부계단，12 h시체도평형，단위흡부량위49.34 mg/g；pH=6시흡부효과최호。대우저농도적분알용액，려료투가량위20 g/L시거제솔최대，체도79.4%。
After attapulgite-based filter materials have been treated by hydrothermal curing method,its micro-struc-ture changes from acicular to sheet,compressive strength increases obviously,specific surface area enlarged signifi-cantly,and pore diameter decreases slightly. Attapulgite filter materials which have been hydrothermal cured are used for doing the adsorption tests for aniline. The adsorption capacity for aniline is in the fast adsorption stage with-in the first 8 h,and is in equilibrium state when it works for 12 h. The adsorption capacity per unit is 49.34 mg/g,and when pH=6,the adsorption effect is the best. For low concentration aniline solution,when filter material dosage is 20 g/L,its removing rate is the highest,reaching 79.4%.
