CN115448532B - 一种萤石选矿废水的处理方法 - Google Patents
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Abstract
本发明公开了一种萤石选矿废水的处理方法,通过在生物有机质中复合硬脂酸,然后以混合菌种进行发酵,发酵产酸至pH为4‑5后,加入选矿废水,使生物有机质吸附酸析虫胶和Ca2+,有效降低Ca2+的浓度,粘附并净化选矿废水中固体杂质,同时清除溶解的虫胶。
Description
技术领域
本发明涉及选矿废水处理工艺,尤其涉及一种萤石选矿废水的处理方法。
背景技术
萤石(Fluorite)又称氟石,主要成分是氟化钙(CaF2),是重要的非金属矿产资源,世界多地均产。萤石是唯一一种可以提炼大量氟元素矿物,同时其还被用于炼钢中的助溶剂以除去杂质。萤石在制作生产玻璃和搪瓷时也有应用,在光学领域对于萤石的需求量较大。萤石被广泛应用于冶金、炼铝、玻璃、陶瓷、水泥、化工等行业。
高硅萤石矿所采用的选矿方法对一段磨矿的细度要求较高,而且由于高硅萤石矿中部分萤石颗粒碎矿被隐晶质玉髓胶结,以及部分萤石矿与石英连生,尾渣中的萤石含量较高,导致萤石精矿SiO2的品位较高,而且萤石精矿产率难以提升,而CaF2的回收率也较低。
为了解决上述问题,我司开发了一种新型的选矿方法,将一段磨矿细度控制得更低,然后以虫胶溶液粘合制得细度合适的粗选矿粉,随着选矿工艺的持续,虫胶逐渐分解,矿粉逐渐粉化,同时通过在扫选和最后一次精选中添加氧化钙,完全溶解虫胶,使矿粉完全粉化,以此降低萤石精矿SiO2的品位,并有效提升CaF2的回收率。
上述选矿方法得到的选矿废水中,Ca2+的浓度较高且呈碱性,选矿废水中溶有一定量的虫胶,化学需氧量COD较高,如需重复利用,则需要控制Ca2+的浓度,净化选矿废水中固体杂质,同时清除溶解的虫胶。
发明内容
本发明开发了一种萤石选矿废水的处理方法,通过在生物有机质中复合硬脂酸,然后以混合菌种进行发酵,发酵产酸至pH为4-5后,加入选矿废水,使生物有机质吸附酸析虫胶和Ca2+,有效降低Ca2+的浓度,粘附并净化选矿废水中固体杂质,同时清除溶解的虫胶。
一种萤石选矿废水的处理方法,所述处理方法具体如下:
(1)将硬脂酸溶解于热乙醇制成0.5%-1%的硬脂酸乙醇溶液,然后喷洒于硬脂酸乙醇溶液质量5-6倍的生物有机质上,混合均匀后,静置,待乙醇挥发;
(2)将混合菌种溶解于质量200-500倍的水中,制得混合菌种水溶液,按照混合菌种水溶液:生物有机质质量比为3:7进行混合发酵,发酵时每日补充挥发掉的水分,同时翻搅,连续发酵至生物有机质底部积水pH为4.0-4.5;
(3)在选矿废水中持续通入酸性气体,调节pH至6.8-7.5;然后将第(2)步的发酵生物有机质按照固液比25-30kg/t加入选矿废水,持续搅拌3h-5h;
(4)将第(3)步的选矿废水过滤掉生物有机质,得到净化水。
进一步的,所述生物有机质为麦麸或米糠。
进一步的,所述混合菌种为枯草芽孢杆菌:木霉菌:米曲霉质量比为6-8:1-2:3-5的混合物。
进一步的,所述酸性气体为空气或CO2。
进一步的,后续生物有机质发酵可采用混合添加第(4)步过滤的生物有机质的方法进行发酵。
进一步的,第(4)步得到的净化水持续通入空气,以消耗残余有机物。
本发明的优点:
1、本发明通过在生物有机质中复合硬脂酸,然后以混合菌种进行发酵,发酵产酸至pH为4-5后,加入选矿废水,使生物有机质吸附酸析虫胶和Ca2+,有效降低Ca2+的浓度,粘附并净化选矿废水中固体杂质,同时清除溶解的虫胶;
2、生物有机质中复合硬脂酸,水中不溶解的硬脂酸在发酵过程中被生物有机质吸附,后期在选矿废水中有效固定Ca2+;相比于添加碳酸钠等方法,本发明不会在选矿废水中引入大量Na+;
3、生物有机质发酵至底部积水pH为4.0-4.5时进行使用,既可保证发酵产酸,用于后续酸化选矿废水,以使虫胶析出;同时又能保证生物有机质不发酵过度,影响生物有机质对选矿废水中固体杂质的捕获能力;
4、相比于添加聚铁、聚铝等净化水的方式,本发明不会引入新的金属离子;
5、混合菌种不仅能提高麦麸的发酵效率,而且其中的枯草芽孢杆菌在得到的净化水中可继续分解残余有机物。
具体实施方式
实施例1
一种萤石选矿废水的处理方法,所述处理方法具体如下:
(1)将硬脂酸溶解于热乙醇制成0.8%的硬脂酸乙醇溶液,然后喷洒于硬脂酸乙醇溶液质量6倍的麦麸上,混合均匀后,静置,待乙醇挥发;
(2)将混合菌种溶解于质量400倍的水中,制得混合菌种水溶液,按照混合菌种水溶液:麦麸质量比为3:7进行混合发酵,发酵时每日补充挥发掉的水分,同时翻搅,连续发酵至麦麸底部积水pH为4.1;
所述混合菌种为枯草芽孢杆菌:木霉菌:米曲霉质量比为7:1:4的混合物;
(3)在选矿废水中持续通入空气,调节pH至7.0;然后将第(2)步的发酵麦麸按照固液比25kg/t加入选矿废水,持续搅拌4h;
(4)将第(3)步的选矿废水过滤掉麦麸,得到净化水。
对比例1
一种萤石选矿废水的处理方法,其中麦麸发酵前未复合硬脂酸,而是在第(3)步将发酵麦麸加入选矿废水的同时加入等量的硬脂酸,其余工艺同实施例1。
对比例2
一种萤石选矿废水的处理方法,其中麦麸连续发酵至麦麸底部积水pH为3.5,其余工艺同实施例1。
对比例3
一种萤石选矿废水的处理方法,其中混合菌种未添加枯草芽孢杆菌,其余工艺同实施例1。
测试:以同批次选矿废水进行测试,预先沉降去除大颗粒固体杂质后,先测试初始有机质残留量,以化学需氧量COD表示(mg/L);Ca2+浓度(ppm)以及浊度(NTU);
根据上述实施例和对比例分别处理10t选矿废水,处理完成之后,检测净化水的化学需氧量COD(mg/L)、Ca2+浓度(ppm)以及浊度(NTU)。
测试 | 化学需氧量COD(mg/L) | Ca2+浓度(ppm) | 浊度(NTU) |
选矿废水 | 465 | 226 | 303 |
实施例1 | 61 | 39 | 25 |
对比例1 | 64 | 219 | 41 |
对比例2 | 52 | 44 | 86 |
对比例3 | 66 | 39 | 23 |
上述对比例3得到的净化水,持续通入空气1天,其化学需氧量COD并未下降,依然为66mg/L;而实施例1得到的净化水,持续通入空气1天,其化学需氧量COD下降至46mg/L。
最后:以上所述仅为本发明的优选实施例而已,并不用于限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (5)
1.一种萤石选矿废水的处理方法,其特征在于:所述处理方法具体如下:
(1)将硬脂酸溶解于热乙醇制成0.5%-1%的硬脂酸乙醇溶液,然后喷洒于硬脂酸乙醇溶液质量5-6倍的生物有机质上,混合均匀后,静置,待乙醇挥发;
(2)将混合菌种溶解于质量200-500倍的水中,制得混合菌种水溶液,按照混合菌种水溶液:生物有机质质量比为3:7进行混合发酵,发酵时每日补充挥发掉的水分,同时翻搅,连续发酵至生物有机质底部积水pH为4.0-4.5;
所述混合菌种为枯草芽孢杆菌:木霉菌:米曲霉质量比为6-8:1-2:3-5的混合物;
(3)在选矿废水中持续通入酸性气体,调节pH至6.8-7.5;然后将第(2)步的发酵生物有机质按照固液比25-30kg/t加入选矿废水,持续搅拌3h-5h;
(4)将第(3)步的选矿废水过滤掉生物有机质,得到净化水。
2.根据权利要求1所述萤石选矿废水的处理方法,其特征在于:所述生物有机质为麦麸或米糠。
3.根据权利要求1所述萤石选矿废水的处理方法,其特征在于:所述酸性气体为空气或CO2。
4.根据权利要求1所述萤石选矿废水的处理方法,其特征在于:后续生物有机质发酵采用混合添加第(4)步过滤的生物有机质的方法进行发酵。
5.根据权利要求1所述萤石选矿废水的处理方法,其特征在于:第(4)步得到的净化水持续通入空气,以消耗残余有机物。
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1303195A1 (ru) * | 1985-06-20 | 1987-04-15 | Предприятие П/Я А-1997 | Способ флотации флюоритовых руд |
CN1256253A (zh) * | 1998-12-08 | 2000-06-14 | 中国科学院化工冶金研究所 | 碱法造纸黑液木质素生物酸析法 |
CN106518304A (zh) * | 2016-10-13 | 2017-03-22 | 高鹏 | 一种无公害果桑用高效缓释肥料及其制备方法 |
CN107986374A (zh) * | 2017-11-29 | 2018-05-04 | 北京科技大学 | 生物吸附材料与树脂基复合材料协同脱除水中氟的方法 |
CN109574263A (zh) * | 2018-12-26 | 2019-04-05 | 湖南柿竹园有色金属有限责任公司 | 一种萤石选矿废水的处理及回用方法 |
-
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- 2022-08-20 CN CN202211001845.3A patent/CN115448532B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SU1303195A1 (ru) * | 1985-06-20 | 1987-04-15 | Предприятие П/Я А-1997 | Способ флотации флюоритовых руд |
CN1256253A (zh) * | 1998-12-08 | 2000-06-14 | 中国科学院化工冶金研究所 | 碱法造纸黑液木质素生物酸析法 |
CN106518304A (zh) * | 2016-10-13 | 2017-03-22 | 高鹏 | 一种无公害果桑用高效缓释肥料及其制备方法 |
CN107986374A (zh) * | 2017-11-29 | 2018-05-04 | 北京科技大学 | 生物吸附材料与树脂基复合材料协同脱除水中氟的方法 |
CN109574263A (zh) * | 2018-12-26 | 2019-04-05 | 湖南柿竹园有色金属有限责任公司 | 一种萤石选矿废水的处理及回用方法 |
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