工业用水与废水
工業用水與廢水
공업용수여폐수
INDUSTRIAL WATER & WASTEWATER
2014年
5期
23-26
,共4页
萃取%对叔丁基杯4芳烃%Schiff 碱衍生物%铬(Ⅳ)%反萃取
萃取%對叔丁基杯4芳烴%Schiff 堿衍生物%鉻(Ⅳ)%反萃取
췌취%대숙정기배4방경%Schiff 감연생물%락(Ⅳ)%반췌취
extraction%p-tert-butycalix[4] arene%Schiff base derivatives%Cr(Ⅳ)%back-extraction
以含 N，N-二甲基苯胺基团的对叔丁基杯[4]芳烃 Schiff 碱衍生物为萃取剂对工业含铬（Ⅳ)废水进行萃取处理，考察了水相 pH 值、振荡时间、干扰离子和萃取温度对铬（Ⅳ)去除率的影响，探讨了萃取与反萃取机理，同时进行了反萃取试验。结果表明，在 pH 值为1.0，振荡时间为15 min，温度为25℃的条件下，废水中铬（Ⅳ)的去除率可达到95%以上，以 NaOH 溶液为反萃取剂可对铬（Ⅳ)进行反萃取，反萃取率可达到81.98%，实现了铬（Ⅳ)的回收和萃取剂的循环利用。
以含 N，N-二甲基苯胺基糰的對叔丁基杯[4]芳烴 Schiff 堿衍生物為萃取劑對工業含鉻（Ⅳ)廢水進行萃取處理，攷察瞭水相 pH 值、振盪時間、榦擾離子和萃取溫度對鉻（Ⅳ)去除率的影響，探討瞭萃取與反萃取機理，同時進行瞭反萃取試驗。結果錶明，在 pH 值為1.0，振盪時間為15 min，溫度為25℃的條件下，廢水中鉻（Ⅳ)的去除率可達到95%以上，以 NaOH 溶液為反萃取劑可對鉻（Ⅳ)進行反萃取，反萃取率可達到81.98%，實現瞭鉻（Ⅳ)的迴收和萃取劑的循環利用。
이함 N，N-이갑기분알기단적대숙정기배[4]방경 Schiff 감연생물위췌취제대공업함락（Ⅳ)폐수진행췌취처리，고찰료수상 pH 치、진탕시간、간우리자화췌취온도대락（Ⅳ)거제솔적영향，탐토료췌취여반췌취궤리，동시진행료반췌취시험。결과표명，재 pH 치위1.0，진탕시간위15 min，온도위25℃적조건하，폐수중락（Ⅳ)적거제솔가체도95%이상，이 NaOH 용액위반췌취제가대락（Ⅳ)진행반췌취，반췌취솔가체도81.98%，실현료락（Ⅳ)적회수화췌취제적순배이용。
The industrial wastewater containing Cr(Ⅳ) was treated by p-tert-butycalix[4] arene Schiff base derivatives of N,N-dimethylaniline, the influences of pH value, oscillation time, interfering ions and extraction temperature on removal rate of Cr(Ⅳ) were investigated, the mechanisms of extraction and back-extraction were discussed, besides, an reextraction test was carried out at the same time. The results showed that, when the pH value was 1.0, the oscillation time was 15 min, the temperature was 25 ℃, the removal rate of Cr(Ⅳ) could reach above 95%; furthermore, with NaOH solution as back-extractant, the back-extraction rate reached 81.98%, which realized the recovery of Cr(Ⅳ) and the cyclic utilization of extractant.
