武汉工程大学学报
武漢工程大學學報
무한공정대학학보
JOURNAL OF WUHAN INSTITUTE OF TECHNOLOGY
2014年
11期
32-36
,共5页
累托石%改性%染料废水%吸附
纍託石%改性%染料廢水%吸附
루탁석%개성%염료폐수%흡부
rectorite%modify%dye-wastewater%adsorption
为得到吸附性能更优的废水处理材料,在最适宜改性条件下采用氯化铁溶液、碳酸锂草酸溶液和焦磷酸钠溶液分别制得铁盐改性累托石、锂盐改性累托石和钠盐改性累托石;取原累托石和三种盐类改性累托石为吸附剂,考察原累托石与改性累托石对亚甲基蓝、甲基紫、孔雀石绿和中性红4种染料废水的吸附效果,其中累托石用量0.1 g ,染料废水用量200 mL质量浓度为100 mg/L .结果表明:3种盐类改性累托石对4种染料废水的去除率和平衡吸附量明显优于原累托石,3种盐类改性累托石中铁盐改性累托石和锂盐改性累托石吸附效果优于钠盐改性累托石.对原累托石及3种盐类改性累托石进行扫描电镜分析,发现改性后累托石层间距明显增大,且改性过程并未改变累托石的片层结构.由此可见,盐类改性累托石具有优良的吸附性能,其中铁盐改性累托石和锂盐改性累托石的吸附性能更优.
為得到吸附性能更優的廢水處理材料,在最適宜改性條件下採用氯化鐵溶液、碳痠鋰草痠溶液和焦燐痠鈉溶液分彆製得鐵鹽改性纍託石、鋰鹽改性纍託石和鈉鹽改性纍託石;取原纍託石和三種鹽類改性纍託石為吸附劑,攷察原纍託石與改性纍託石對亞甲基藍、甲基紫、孔雀石綠和中性紅4種染料廢水的吸附效果,其中纍託石用量0.1 g ,染料廢水用量200 mL質量濃度為100 mg/L .結果錶明:3種鹽類改性纍託石對4種染料廢水的去除率和平衡吸附量明顯優于原纍託石,3種鹽類改性纍託石中鐵鹽改性纍託石和鋰鹽改性纍託石吸附效果優于鈉鹽改性纍託石.對原纍託石及3種鹽類改性纍託石進行掃描電鏡分析,髮現改性後纍託石層間距明顯增大,且改性過程併未改變纍託石的片層結構.由此可見,鹽類改性纍託石具有優良的吸附性能,其中鐵鹽改性纍託石和鋰鹽改性纍託石的吸附性能更優.
위득도흡부성능경우적폐수처리재료,재최괄의개성조건하채용록화철용액、탄산리초산용액화초린산납용액분별제득철염개성루탁석、리염개성루탁석화납염개성루탁석;취원루탁석화삼충염류개성루탁석위흡부제,고찰원루탁석여개성루탁석대아갑기람、갑기자、공작석록화중성홍4충염료폐수적흡부효과,기중루탁석용량0.1 g ,염료폐수용량200 mL질량농도위100 mg/L .결과표명:3충염류개성루탁석대4충염료폐수적거제솔화평형흡부량명현우우원루탁석,3충염류개성루탁석중철염개성루탁석화리염개성루탁석흡부효과우우납염개성루탁석.대원루탁석급3충염류개성루탁석진행소묘전경분석,발현개성후루탁석층간거명현증대,차개성과정병미개변루탁석적편층결구.유차가견,염류개성루탁석구유우량적흡부성능,기중철염개성루탁석화리염개성루탁석적흡부성능경우.
To get wastewater treatment materials with better adsorption performance ,the three kinds of salt modified rectorite of ferric ,lithium and sodium were prepared by using ferric chloride ,lithium car‐bonate ,oxalic acid and sodium pyrophosphate solution under the most suitable modification condition ;the raw rectorite and the three kinds of salt modified rectorite were used as adsorbents to treat dye wastewater containing methylene blue ,methyl violet ,malachite green and neutral red with rectorite dosage of 0 .1 g ,dye wastewater dosage of 200 mL and dye wastewater concentration of 100 mg/L .The results show that the removal rate and the equilibrium adsorption capacity of the three kinds of salt modified rectorite on the four dye wastewater are much better than those of the raw rectorite;the ad‐sorption effect of ferric salt modified rectorite and lithium salt modified rectorite on the four dye wastewater are better than that of sodium salt modified rectorite .After scanning electron microscope analyses of the raw rectorite and the three kinds of salt modified rectorite ,results show that the inter‐layer spacing of the three kinds of salt modified rectorite becomes much larger than that of the raw rec‐torite and the modified process doesn't change the structure of rectorite .This implies the adsorption performance of the three kinds of salt modified rectorite is excellent ;moreover ,the adsorption perform‐ance of ferric and lithium salt modified rectorite is better than that of the sodium salt modified rectorite .