降低湖南某多金属矿选矿废水COD试验研究
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摘要
以两种途径研究了混凝沉淀法对湖南某多金属矿选矿废水COD去除的可行性。用聚合硫酸铁(PFS)、七水硫酸亚铁为水处理剂,分别在总尾矿矿浆和尾矿库出水中考察初始pH值,混凝剂种类及药剂用量等因素对选矿废水COD去除的影响。结果表明,在总尾矿矿浆中加入聚合硫酸铁1 g/L,COD由186降至121 mg/L,或在尾矿库出水中控制初始pH值为7～9,加入七水硫酸亚铁500 mg/L,COD由135降至88 mg/L。以第一种方案进行工业试验,取得了良好指标,排水pH值为6～9,COD <100 mg/L,达到污水综合排放标准(GB8978-1996)一级标准的要求。
Two schemes were used to study the feasibility of coagulation and sedimentation method for COD removal from a mineral processing wastewater from a multi-metal mine in Hunan Province. Polyferric sulfate( PFS)and ferrous sulfate heptahydrate were used as water treatment agents in the total tailings. The effects of initial pH,coagulant types and dosage of pharmaceuticals on COD removal of mineral processing wastewater were investigated.The results showed that the addition of polyferric sulfate was 1 g/L,the COD decreased from 186 mg/L to 121 mg/L. Or the initial pH in the tailings reservoir was 7 ～ 9,adding ferrous sulfate heptahydrate 500 mg/L,COD decreased from 135 mg/L to 88 mg/L. The author uses the first program to carry out the industrial test,and achieved good indicators. The drainage pH was 6 ～ 9,COD below 100 mg/L. To achieve comprehensive wastewater discharge the first standard requirements.
Two schemes were used to study the feasibility of coagulation and sedimentation method for COD removal from a mineral processing wastewater from a multi-metal mine in Hunan Province. Polyferric sulfate( PFS)and ferrous sulfate heptahydrate were used as water treatment agents in the total tailings. The effects of initial pH,coagulant types and dosage of pharmaceuticals on COD removal of mineral processing wastewater were investigated.The results showed that the addition of polyferric sulfate was 1 g/L,the COD decreased from 186 mg/L to 121 mg/L. Or the initial pH in the tailings reservoir was 7 ～ 9,adding ferrous sulfate heptahydrate 500 mg/L,COD decreased from 135 mg/L to 88 mg/L. The author uses the first program to carry out the industrial test,and achieved good indicators. The drainage pH was 6 ～ 9,COD below 100 mg/L. To achieve comprehensive wastewater discharge the first standard requirements.
引文
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[18]陈立丰,李明俊,万诗贵,等.有机高分子絮凝剂和聚合硫酸铁絮凝剂处理高浊度原水的研究[J].水处理技术,1999(1):51-55.
[19]晏井春,朱富坤,闫永胜,等.纳米聚合硫酸铁的制备、表征及应用研究[J].无机盐工业,2007,39(11):31-33.
[20]廖家仕.聚合硫酸铁生产新技术在给水处理上的应用[J].黑龙江科技信息,2014,28:87.
[21]XING ZIPENG,SUN DEZHI.Treatment of antibiotic fermentation wastewater by combined polyferric sulfate coagulation,Fenton and sedimentation process[J].Journal of hazardous materials,2009,168(2):8-1264.
[22]张盛汉,谭德俊,陈泉源.硫酸亚铁/过硫酸钾体系深度处理印染废水[J].东华大学学报(自然科学版),2013,39(6):119-122,134.
[2]王强,吴悦颖,文宇立,等.中国污水处理设施建设现状与存在问题研究[J].环境污染与防治,2015,37(3):94-97.
[3]欧阳魁.臭氧法处理硫化矿选矿废水的新工艺及其机理研究[D].长沙:中南大学,2009.
[4]O S AMUDA,A ALADE.Coagulation/flocculation process in the treatment of abattoir wastewater[J].Desalination,2006,196(1):22-31.
[5]O GOKKUS,Y S YILDIZ.Investigation of the effect of process parameters on the coagulation-flocculation treatment of textile wastewater using the taguchi experimental method[J].Fresenius Environmental Bulletin,2014,23(2):463-470.
[6]郑毅,丁曰堂,李峰,等.国内外混凝机理研究及混凝剂的开发现状[J].中国给水排水,2007,23(10):19-22.
[7]邓海波,赵磊,李晓东,等.柿竹园预脱铁脱泥黑白钨混浮钨矿选矿新工艺研究[J].中国钨业,2011,224(4):16-19.
[8]田松鹤.柿竹园多金属矿硫化矿浮选工艺研究[J].湖南有色金属,2006(3):9-13.
[9]孙传尧,程新朝,李长根.钨铋钼萤石复杂多金属矿综合选矿新技术---柿竹园法[J].中国钨业,2004(5):13-19.
[10]周基校,李长根.柿竹园钨钼铋萤石多金属矿的选矿工艺进展[J].有色金属(选矿部分),1999(2):7-12.
[11]陈绪钰.聚合硫酸铁去除水中氟的试验研究[J].中国农村水利水电,2009(11):95-97.
[12]李风亭.我国混凝剂聚合硫酸铁的技术发展现状[J].工业水处理,2002(1):7-10.
[13]朱乐辉.硫酸亚铁处理油墨废水的试验研究[J].水处理技术,2010(12):83-86.
[14]AKSHAYA KUMAR VERMA,RAJESH ROSHAN DASH,PUSPENDU BHUNIA.A review on chemical coagulation/flocculation technologies for removal of colour from textile wastewaters[J].Journal of Environmental Management,2012,93(1):154-168.
[15]邱显扬,程德明,王淀佐.苯甲羟肟酸与白钨矿作用机理的研究[J].矿冶工程,2001(3):41-44.
[16]史宇驰,邹勤,陶镇,等.湖南某多金属矿选矿废水处理回用试验研究[J].中国钨业,2015(5):34-38.`
[17]姚国济.柿竹园多金属矿尾矿水处理[J].有色矿山,1981(4):12-14.
[18]陈立丰,李明俊,万诗贵,等.有机高分子絮凝剂和聚合硫酸铁絮凝剂处理高浊度原水的研究[J].水处理技术,1999(1):51-55.
[19]晏井春,朱富坤,闫永胜,等.纳米聚合硫酸铁的制备、表征及应用研究[J].无机盐工业,2007,39(11):31-33.
[20]廖家仕.聚合硫酸铁生产新技术在给水处理上的应用[J].黑龙江科技信息,2014,28:87.
[21]XING ZIPENG,SUN DEZHI.Treatment of antibiotic fermentation wastewater by combined polyferric sulfate coagulation,Fenton and sedimentation process[J].Journal of hazardous materials,2009,168(2):8-1264.
[22]张盛汉,谭德俊,陈泉源.硫酸亚铁/过硫酸钾体系深度处理印染废水[J].东华大学学报(自然科学版),2013,39(6):119-122,134.