摘要
先进氧化方法是对传统的氧化化学思维的更新和发展。它是从源头上解决环境污染问题。采用常压强电场电离放电方法,把HO、O加工成高浓度、大产量的OH·等自由基,成功解决了先进氧化OH·处理水22的工程化疑难问题,实现了在低浓度(0.6mg/L)、快速(2.8s)条件下大幅度改善水质,对水中亚硝酸盐、铵盐减少98.4%和99.5%,COD未检出,由于羟基对细胞残骸的氧化分解,才促使TOC有所上升,水中金属离子Cd2+、Pb2+、Hg2+、Fe2+和Fe3+以及非金属As等有不同程度减少。对水中单胞藻、原生动物、细菌致死均达到100%,又把生物尸体分解成HO、CO和微量无机盐,水中剩余羟基将分解成HO、O。从上述试验数据表明,2222强电离放电先进氧化剂OH·处理海水达到了绿色化学12条原则的要求。
The advanced oxidation is the update and development for Traditional thought of oxidation-chemistry and is to solve environmental pollution from the source. It adopts the method of ionization discharge in strong electric field to process H2O,O2 into OH· etc. radicals, successfully solves the difficult problems in engineering field for treating water by advanced OH· oxidation and realize substantial improvement of water quality under the conditions of low concentration (0.6mg/L) and high speed(2.8s),nitrite and ammonium salts in water decreasing by 98.4% and 99.5% respectively and COD being undetected. As oxidation decomposition of cell remains by OH group promotes rising of TOC, metal ions Cd2+, Pb2+,Hg2+,Fe2+ and non-metal As etc. decrease to different degrees.The lethality rate of unit alga, protozoon and monad reached to 100%, meanwhile it decomposed the biological remains into H2O, CO2 and trace inorganic salts, and remaining OH group in water into H2O, CO2 and O2. The above data show that the seawater treatment with the advanced oxidant OH· under strong ionization discharge meets the principal requirements of 12 articles of green chemistry and can realize'zero residue','zero pollution' and 'zero discharge'.
出处
《水处理技术》
CAS
CSCD
北大核心
2005年第2期13-16,20,共5页
Technology of Water Treatment
基金
国家自然科学基金重点项目(批准号:60031001)
国家重大基础研究前期研究专项(2002CCC00900)。
