环境工程学报
環境工程學報
배경공정학보
CHINESE JOURNAL OF ENVIRONMENTAL ENGINEERING
2010年
1期
133-136
,共4页
饮用水源%铬%硫酸亚铁%亚硫酸氢钠%活性炭
飲用水源%鉻%硫痠亞鐵%亞硫痠氫鈉%活性炭
음용수원%락%류산아철%아류산경납%활성탄
drinking water source%chromium%FeSO_4%NaHSO_3%active carbon
通过对水源水中铬污染的不同去除方法的比较实验及验证实验.研究pH值、FesO_4、NaHSO_3和活性炭的投加量对铬的左除效果的影响.实验结果表明,当原水中铬的含量为0.5 mg/L时,未调节pH值的条件下,亚硫酸氢钠与活性炭对铬的最高去除率为50%左右;硫酸亚铁还原沉淀在FeSO_4·7H_2O:Cr~(6+)投加比=16:1时,滤后出水中Cr~(6+)的去除率达到96.8%,中试出水中未检出Cr~(6+),出水的总Cr、总Fe等指标完全达到<生活饮用水卫生标准>(GB 5749-2006)的要求.
通過對水源水中鉻汙染的不同去除方法的比較實驗及驗證實驗.研究pH值、FesO_4、NaHSO_3和活性炭的投加量對鉻的左除效果的影響.實驗結果錶明,噹原水中鉻的含量為0.5 mg/L時,未調節pH值的條件下,亞硫痠氫鈉與活性炭對鉻的最高去除率為50%左右;硫痠亞鐵還原沉澱在FeSO_4·7H_2O:Cr~(6+)投加比=16:1時,濾後齣水中Cr~(6+)的去除率達到96.8%,中試齣水中未檢齣Cr~(6+),齣水的總Cr、總Fe等指標完全達到<生活飲用水衛生標準>(GB 5749-2006)的要求.
통과대수원수중락오염적불동거제방법적비교실험급험증실험.연구pH치、FesO_4、NaHSO_3화활성탄적투가량대락적좌제효과적영향.실험결과표명,당원수중락적함량위0.5 mg/L시,미조절pH치적조건하,아류산경납여활성탄대락적최고거제솔위50%좌우;류산아철환원침정재FeSO_4·7H_2O:Cr~(6+)투가비=16:1시,려후출수중Cr~(6+)적거제솔체도96.8%,중시출수중미검출Cr~(6+),출수적총Cr、총Fe등지표완전체도<생활음용수위생표준>(GB 5749-2006)적요구.
Through the lab and pilot-scale experiments of different measures on the removal of chromium in dringking water sources, the effects of pH value, oxidant of FeSO_4、NaHSO_3 and active carbon on the chromium removal were studied. The results showed that, when the mass concentration of chromium in raw water was 0.5 mg/L,the removal rate of chromium with NaHSO_3 and active carbon was 50% ; the removal rate of chromium was 96.8% in lab experiment and 100% by the process of pilot-scale when the ratio of FeSO_4 · 7H_2O to Cr~(6+) was 16:1 , and the concentration of total chromium, total iron satisfied the requirement of Hygienic Standard for Drinking Water (GB 5749-2006).
