“氧化还原-沉淀-超滤”法处理含铬放射性废水  

Treatment of Chromium-containing Radioactive Wastewater by Redox-precipitation-ultrafiltration Method

作　　者：郭宁博 贾铭椿[2] 董兴泰[3] 

机构地区：[1]海军驻葫芦岛431厂军事代表室,葫芦岛125004 [2]海军工程大学动力工程学院,武汉430033 [3]海军工程大学训练部,武汉430033

出　　处：《武汉理工大学学报（交通科学与工程版）》2013年第1期196-200,共5页Journal of Wuhan University of Technology（Transportation Science & Engineering）

摘　　要：为了有效处理含铬放射性废水并实现废物最小化,以过氧化氢为还原剂、氨水为pH值调节剂,采用"氧化还原-沉淀-超滤"法处理模拟废水.研究了各因素(废水初始pH值、过氧化氢加入量、反应时间)对过氧化氢还原Cr(Ⅵ)的影响,对比了金属离子催化分解残留过氧化氢的效果、氨水与氢氧化钠沉淀Cr(Ⅲ)的效果,测试了超滤出水总铬质量浓度并计算了截留率.结果表明,净化水样中平均总铬质量浓度降至6.44mg/L,截留率达94.53%.其中Cr(Ⅵ)平均质量浓度0.129mg/L,达到污水综合排放标准.For treating chromium-containing radioactive wastewater effectively and achieving waste minimization, the redox-precipitation-uhrafiltration method in which H202 was used as reductant and NHs · H20 was used as pH adjusting agent was used to treat simulated wastewater. Effect of differ- ent variables including initial pH, H2O2 quantity and time on the reaction of H2 02 and Cr（VI） was in- vestigated. The results of catalytic decomposition of vestigial hydrogen peroxide by different metal i- ons were compared. The results of precipitation of Cr（III） with NaOH or NH3 ·H2O were compared. The total chromium of the UF（ultrafiltration） permeate was tested and removal efficiency of was cal- culated. The results showed that average concentration of total chromium was 6.44 mg/L in UF per- meate and the removel efficiency was 94.53%. Moreover, the average concentration of Cr（VI） was 0. 129 mg/L in UF permeate, which reached the integrated wastewater discharge standard.

关 键 词：含铬废水 放射性 六价铬 过氧化氢 超滤 

分 类 号：X703.1[环境科学与工程—环境工程]