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低浓度含砷污酸处理工艺的比较研究

Keywords: 石灰法,石灰-铁盐法,除砷

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Abstract:

比较研究了石灰中和法和石灰-铁盐法对硫化后含低浓度砷(20~50mg/L)污酸的处理效果。结果表明,单纯采用石灰法,废水难以达标排放;而两段石灰-铁盐(氯化铁)法满足达标排放的同时,一段及二段沉淀物的浸出液中砷、镉、铜、铅和锌含量均低于危险废物鉴别标准要求(GB5085.3-2007);其最优工艺参数为一段终了pH=2,反应时间为2h,二段终了pH=8、Fe/As=8、反应时间为60min、氧化剂投加量(Ca(ClO)2/As)为6∶1;正交实验结果中各参数对铁盐除砷效果影响顺序为终了pH>反应时间>Fe/As>氧化剂投加量。

References

[1]  Mohan D., Pittman Jr. C. U. Arsenic removal from water/wastewater using adsorbents:A critical review. Journal of Hazardous Materials, 2007, 142(1-2): 1-53
[2]  易求实. 三段石灰-铁盐法处理高砷污酸. 硫酸工业, 2012,54(1):46-48 Yi Qiushi. Three-stage lime-ferric salt process for treating high-arsenic waste acid. Sulphuric Acid Industry, 2012,54(1):46-48 (in Chinese)
[3]  肖细元, 陈同斌, 廖晓勇,等. 中国主要含砷矿产资源的区域分布与砷污染问题. 地理研究, 2008,27(1):201-212 Xiao Xiyuan, Chen Tongbin, Liao Xiaoyong, et al. Regional distribution arsenic contained minerals and arsenic pollution in China. Geographical Research, 2008,27(1):201-212 (in Chinese)
[4]  黄自力,刘缘缘,陶青英,等.石灰沉淀法除砷的影响因素.环境工程学报, 2012,6(3):734-738 Huang Zili, Liu Yuanyuan, Tao Qingying, et al. Influencing factors of arsenic removal by lime precipitation. Chinese Journal of Environmental Engineering, 2012,6(3):734-738 (in Chinese)
[5]  Harris B. The removal of arsenic from process solutions: theory and industrial practice. Hydrometallurgy 2003: Proceeding of the International Symposium Honoring Professor Ian M. Ritchie. TMS, Warrendale, PA, 2003. 1889-1902
[6]  Langmuir D., Mahoney J., MacDonald A., et al. Predicting arsenic concentrations in the porewaters of buried uranium mill tailings. Geochimica et Cosmochimica Acta, 1999, 63(19-20):3379-3394
[7]  Twidwell L. G., Robins R. G., Hohn J.W. The removal of arsenic from aqueous solution by coprecipitation with iron (III). In: Reddy, R. G., Ramachandran, V. (Eds.), Arsenic Metallurgy: Fundamentals and Applications, TMS, Warrendale, PA, 2005.3-24
[8]  吴兆清, 陈燎原, 许国强, 等. 石灰-铁盐法处理硫酸厂高砷废水的研究与应用. 矿冶,2003,12(1):79-81 Wu Zhaoqing, Chen Liaoyuan, Xu Guoqiang, et al. Study on treating high-arsenic wastewater from sulfuric acid plant with lime-ferrate process. Mining & Metallurgy, 2003,12(1):79-81(in Chinese)
[9]  董准勤. 含砷酸性废水的处理. 硫酸工业, 2006, 48(5):49-50 Dong Zhunqin. Removal arsenic from acid wastewater. Sulphuric Acid Industry, 2006,48 (5):49-50(in Chinese)
[10]  易求实, 杜冬云, 鲍霞杰, 等. 高效硫化回收技术处理高砷净化污酸的研究. 硫酸工业, 2009, (6): 6-10 Yi Qiushi, Du Dongyun, Bao Xiajie, et al. Study on treatment of high-efficiency sulphuration recovery technology. Sulphuric Acid Industry, 2009, (6): 6-10(in Chinese)
[11]  屈娜. 贵冶硫化中和法除砷工艺探讨. 铜业工程, 2009, (2): 16-19 Qu Na. On arsenic removal process by sulphurization mixing in guixi smelter. Copper Engineering, 2009, (2):16-19(in Chinese)
[12]  De Klerk R.J., Jia Y., Daenzer R., et al. Continuous circuit coprecipitation of arsenic(V) with ferric iron by lime neutralization: Process parameter effects on arsenic removal and precipitate quality. Hydrometallurgy, 2009,111-112 (1):65-72
[13]  黄荣. 金昌冶炼厂污水处理工程的工艺改造. 有色金属, 2002, 54(3):124-126 Huang Rong. Technical transformation of sewage disposal system in Jing Chang smelter. Nonferrous Metals, 2002, 54(3):124-126(in Chinese)
[14]  Meltem Bilici Baskan, Aysegul Pala. Determination of arsenic removal efficiency by ferric ions using response surface methodology. Journal of Hazardous Materials, 2009, 166(2-3):796-801
[15]  易求实, 李敦顺. 从国家危险废物标准角度思考硫酸厂酸性废水处理技术.硫酸工业,2009,51 (2):39-44 Yi Qiushi, Li Dunshun. Consideration on treatment technology ofacidic wastewater in sulphuric acid plant from the national emission standards for hazardous waste. Sulphuric Acid Industry, 2009, 51(2):39-44(in Chinese)
[16]  李亚林, 黄羽, 杜冬云. 利用硫化亚铁从污酸废水中回收砷. 化工学报, 2008, 59(5):1294-1298 Li Yalin, Huang Yu, Du Dongyun. Recovering arsenic fromw aste acid water with ferrous sulfide in producing vitriol. Journal of Chemical Industry and Engineering, 2008, 59(5):1294-1298(in Chinese)

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