雄黄矿区含砷危险废物稳定化治理药剂研究及应用
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摘要
以湖南某雄黄矿区采选含砷危险废物作为研究对象,通过小试试验药剂筛选、效果验证,确定航天凯天环保科技股份有限公司自主研发的复配重金属高效稳定剂(HK-As-4系列)稳定化效果最优,确定药剂适宜的添加范围。并通过药剂中试试验验证了5%复配重金属高效稳定剂能满足雄黄矿区含砷危险废物的稳定化要求,处理后样品p H在7~12间,砷浸出浓度低于2.5 mg/L,满足《危险废物填埋污染控制标准》(GB18598-2001)中要求的危险废物入场标准。
Taking arsenic hazardous wastes from a realgar mining area in Hunan as a research object,through the small test experimental drug screening,the effect verification,finally it was confirmed that the stabilizing effect of compound heavy metal high-effective stabilizer( Hk-As-4 series) is optimal,Which is independently developed by the Aerospace Kaitian,determined the appropriate range of additives. And it was verified by the experiment in the pharmacy that 5% compound heavy metal high-effective stabilizer can meet the stabilization requirement of arsenic hazardous waste in the realgar mining area. After treatment,the p H of the samples was between 7 and 12,and the arsenic leaching concentration was less than 2. 5 mg/L,which met the hazardous waste entry standard required by the " Hazardous Waste Landfill Pollution Control Standard"( GB18598-2001).
Taking arsenic hazardous wastes from a realgar mining area in Hunan as a research object,through the small test experimental drug screening,the effect verification,finally it was confirmed that the stabilizing effect of compound heavy metal high-effective stabilizer( Hk-As-4 series) is optimal,Which is independently developed by the Aerospace Kaitian,determined the appropriate range of additives. And it was verified by the experiment in the pharmacy that 5% compound heavy metal high-effective stabilizer can meet the stabilization requirement of arsenic hazardous waste in the realgar mining area. After treatment,the p H of the samples was between 7 and 12,and the arsenic leaching concentration was less than 2. 5 mg/L,which met the hazardous waste entry standard required by the " Hazardous Waste Landfill Pollution Control Standard"( GB18598-2001).
引文
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[20]GB18598-2001,危险废物填埋污染控制标准[S].
[21]HJ557-2010,固体废物浸出水平振荡法[S].
[22]GB/T15555.12-1995,固体废物腐蚀性测定玻璃电极法[S].
[2]蒋成爱,吴启堂,陈仗榴.土壤中砷污染研究进展[J].土壤,2014,36(3):264-270.
[3]赵文艳,王金生,郑骥.含砷废渣的处理处置技术现状[J].资源再生,2011,(11):58-59.
[4]陈灿,陈寻峰,李小明,等.砷污染土壤磷酸盐淋洗修复技术研究[J].环境科学学报,2015,35(8):2 582-2 588.
[5]王建益.土壤淋洗-植物提取技术联合修复砷污染土壤关键过程研究[D].长沙:湖南农业大学,2013.
[6]张印.含砷废渣火法资源化过程污染分析及健康风险评估[D].兰州:兰州大学,2012.
[7]杨志辉.一种用于砷污染土壤修复的菌株及其应用方法[P].中国专利:CN104004691 B,2016-08-24.
[8]肖燕平,尹睿,沈生元,等.丛枝菌根真菌在植物修复砷污染土壤中的作用[J].土壤,2010,42(2):171-177.
[9]张艳,邓扬悟,罗仙平,等.土壤重金属污染以及微生物修复技术探讨[J].有色金属科学与工程,2012,3(1):63-66.
[10]华定志.利用生物法修复土壤砷污染的工艺[P].中国专利:201710414067.8,2017-06-25.
[11]汪海涛.含砷废渣的稳定化/固化处理研究[D].武汉:武汉理工大学,2007.
[12]文武.土壤砷的化学固定修复技术研究[D].长沙:中南林业科技大学,2012.
[13]柴立元,赵宗文,梁彦杰,等.Ca O对钠铁硼磷玻璃体系结构及固砷效果影响[J].有色金属科学与工程,2015,6(1):1-7.
[14]罗道成.用氯化亚铁稳定化处理含砷废渣的试验研究[J].矿业工程研究,2015,30(4):68-74.
[15]李晓波,吴水波,顾平,等.铁盐和铝盐混凝微滤工艺除As(V)的比较研究[J].环境科学,2007,28(10):2 198-2 202.
[16]周振联.石灰-铁盐法除砷中和渣的处置[J].硫酸工业,2003,(1):48-49.
[17]马琳,涂书新.含砷废水修复技术的研究现状及展望[J].工业水处理,2009,29(7):1-6.
[18]朱宏伟.矿渣基低温陶瓷胶凝材料固化硫化砷渣的研究[D].昆明:昆明理工大学,2014.
[19]朱义军,张华,梁延鹏,等.砷酸钙化合物的溶解度及其稳定性随p H的变化[J].环境科学学报,2005,12(25):1 652-1 660.
[20]GB18598-2001,危险废物填埋污染控制标准[S].
[21]HJ557-2010,固体废物浸出水平振荡法[S].
[22]GB/T15555.12-1995,固体废物腐蚀性测定玻璃电极法[S].