水银电解法制烧碱生产线淘汰后防止汞污染的处理方法

介绍了锦化化工（集团）有限责任公司水银电解发法制烧碱生产线停产后，对拆附设备采用循环水冲洗，酸洗；废水和部分固体废弃物采用活性炭吸附和水洗等方法处理沉渣、底泥和受部分土壤及除汞处理后的拆除设备一并处售具有处理能力的企业，有效地防止汞扩散和转移的做法。     

FDA有必要加强对鱼中所含水银的警示力度

Oceana 2008年12月16日报道 据报道,有人因为吃了含水银的鱼而中毒,这表明美国食品药品管理局（FDA）有必要加强对鱼中所含水银的警示力度。据其主治医生诊断。两位受害人都是因为吃了商店购买的鱼而发生汞中毒。从新泽西州到威斯康星州再到加利福尼亚州。这些中毒事件表明海鲜产品被污染问题绝不能被忽视。     

水银医疗器械还要使用多久

笔者先讲一下自己亲身经历的两件与水银医疗器械相关的事。第一件事是前年一次由于感冒发热,在家卧床休息,用水银温度计量体温时,不小心把温度计甩到地上,小汞珠撤了一地。由于我是从事职业健康监督管理工作的,对汞的危害及处理方法有～些了解。于是赶紧用硬纸片和胶带纸收集小汞珠,同时打开窗户通风,但地板缝里的小汞珠想了很多方法就是弄不出来,当时也没太在意就放之不管了。     

Characteristic and mercury adsorption of activated carbon produced by CO2 of chicken waste

Preparation of activated carbon from chicken waste is a promising way to produce a useful adsorbent for Hg removal. A three-stage activation process （drying at 200℃, pyrolysis in N2 atmosphere, followed by CO2 activation） was used for the production of activated samples. The effects of carbonization temperature （409-4500℃）, activation temperature （700-900℃）, and activation time （1-2.5 h） on the physicochemical properties （weight-loss and BET surface） of the prepared carbon wereinvestigated. Adsorptive removal of mercury from real flue gas onto activated carbon has been studied. The activated carbon from chicken waste has the same mercury capacity as commercial activated carbon （Darco LH） （Hg^v： 38.7% vs. 53.5%, Hg^0： 50.5% vs. 68.8%）, although its surface area is around 10 times smaller, 89.5 m^2/g vs. 862 m^2/g. The low cost activated carbon can be produced from chicken waste, and the procedure is suitable.     

Effects of mercury contaminated rice from typical chemical plant area in China on nitric oxide changes and c-fos expression of rats brain

IntroductionMercury(Hg) ,asoneoftheprioritypollutantandhottopicinthefrontofenvironmentalresearchinmanycountries ,hasbeenpaidhigherattentionintheworldsincethemiddleoflastcentury .Chinaisthethirdlargestmercuryproducer,GuizhouProvince(2 4°3 0′— 2 9°13′N     

Effect of oxidation treatment on the adsorption and the stability of mercury on activated carbon

Oxidation treatment on the adsorption and the stability of Hg on activated carbon （AC） was inrestigated. Both MnO2-AC and FeCl3-AC were produced during oxidation treatment. The measurement of modified AC＇s mercury adsorption capacity was conducted in a simulated coal-fired flue gas by adsorbing test apparatus. TCLP and column leaching methods were used to test the stability of mercury adsorbed on ACs. The results indicate that the oxidation treatment changed the pore structure of the AC and modified the carbon surface by creating chemical components such as MnO4^-, Mn^4＋, O, NO^3-, Fe^3＋, Cl^-, etc. The Hg sorption capacity on MnO2-AC or FeCl3-AC was about three times higher than that of untreated carbon. In addition, the mercury control cost of each of the formers was about the half cost of the untreated carbon. The stability of Hg absorption was studied, it found that mercury adsorbed on the oxidation treated AC was not better than that of untreated carbon. It could concluded that the insoluble form of Hg is very important to the stability of mercury adsorbed on AC. This study suggests that the FeCl3-AC is the best absorbent for Hg with high adsorption capacity, better Hg adsorption stability in leaching environment, and lower cost among the three ACs tested.     

医院含汞废物污染和减排对策探讨

以水银血压计和水银体温计为代表的医院用汞是目前汞污染的主要来源之一。简要分析了医院的主要涉汞产品、医院汞污染来源和对环境的影响,通过对北京市多家医院的实际调查,估算了医院含汞废物的产生量。提出了医院含汞废物减排的管理对策和措施建议,包括加快医院无汞产品的推广和应用,加强管理和培训,强化医院含汞废物的收集处置等。     

Effect of organic matter and pH on mercury release from soils

An investigation was conducted on the effect of organic matter(OM)and pH on mercury(Hg)release from soils.Hg release flux was measured using the dynamic flux chamber(DFC)combined with the Lumex multifunctional mercury analyzer in both laboratory experiment and field monitoring.The results showed that Hg emission from the OM-added soils was apparently low because of the high affinity of OM to Hg,resulting in the reverse order as the amount of OM addition.Meanwhile,Hg release flux from different pH value soils exhibited the same trend for both Hg~(2 )and Hg_2~(2 )treatment,increasing the Hg flux with pH value of soils increasing.The trend of Hg release in the pH dependence experiment has been well in agreement with that from the field test.In addition,Hg release seemed to be related to its species in the soil,the flux from Hg~(2 )-added soil was obviously higher than that of Hg_2~(2 )-added soil by the laboratory experiment.     

Vapor-phase elemental mercury adsorption by residual carbon separated from fly ash

Introduction The impact of mercury on the environment and thephysiological health of human is well documented(Laudal,2000; Poissant, 2002; Galbreath, 2000; Palusova, 1991).Mercury, especially methyl mercury, has high affinities forfatty tissue…