CN107055700A - 一种电解处理高浓度含铬废水的方法 - Google Patents

一种电解处理高浓度含铬废水的方法 Download PDF

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Publication number
CN107055700A
CN107055700A CN201710255547.XA CN201710255547A CN107055700A CN 107055700 A CN107055700 A CN 107055700A CN 201710255547 A CN201710255547 A CN 201710255547A CN 107055700 A CN107055700 A CN 107055700A
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chromium
processing
containing wastewater
electrolysis
negative electrode
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雷英春
郝小军
吴跃焕
田月明
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Taiyuan Institute of Technology
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Taiyuan Institute of Technology
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    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F2001/46133—Electrodes characterised by the material
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • C02F2101/22—Chromium or chromium compounds, e.g. chromates
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4612—Controlling or monitoring
    • C02F2201/46125—Electrical variables
    • C02F2201/4614—Current
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00—Apparatus for treatment of water, waste water or sewage
    • C02F2201/46—Apparatus for electrochemical processes
    • C02F2201/461—Electrolysis apparatus
    • C02F2201/46105—Details relating to the electrolytic devices
    • C02F2201/4612—Controlling or monitoring
    • C02F2201/4615—Time

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

本发明涉及一种电解处理高浓度含铬废水的方法：采用如下步骤实现的：a、取200ml 30～40g/L含铬废水作为处理样本；b、采用电池铅板做不溶性阳极(常用不溶性阳极)；c、采用电解紫铜板做阴极(为了便于沉积金属铬，常用紫铜板)；d、电解电流1～2.5A；e、电解时间5～20分钟；f、采用二苯碳酰二肼国标测试废水铬含量。本发明其优点及功效在于：工艺步骤合理可靠，处理后铬含量为1.83g/L，铬去除率为97.3％，同时在阴极沉积纯度＞95％金属铬，沉积出的金属铬纯度很高，杂质在可控范围，可以直接使用。

Description

一种电解处理高浓度含铬废水的方法
技术领域
本发明涉及处理含铬废水的方法，具体为一种电解处理高浓度含铬废水的方法。
背景技术
镀铬层硬度高，耐磨、耐腐蚀，装饰性好，广泛用于汽车、自行车、家用电器、日用五金制品、仪器仪表等行业。但镀铬废水尤其是高浓度镀铬废水处理较为困难，限制了镀铬的应用。国内铬矿属短缺矿种，储量少，产量低，每年消费量的80％以上依靠进口。
国内外对镀铬废水的处理，先后经历化学法、离子交换法、气浮法、生物法等几个阶段，这些方法还存在着工艺复杂、投资费用高，需投加化学药剂、污泥量大、处理费用高等缺点。电解法效率高，节能，在处理高浓度镀铬废水优势明显中有重要应用。将电解法应用于镀铬废水处理中，以制得电解纯铬，在处理废水的同时获得纯铬，达到资源化的目的，环境友好性表现出色。
发明内容
本发明为了解决现有镀铬废水工艺复杂、投资费用等问题，提供了一种电解处理高浓度含铬废水的方法，同时采用本方法可以在处理废水的同时获得纯铬。
本发明是采用如下技术方案实现的：一种电解处理高浓度含铬废水的方法，其特征在于：采用如下步骤实现的：a、取200ml 30～40g/L含铬废水作为处理样本；b、采用电池铅板做不溶性阳极(常用不溶性阳极)；c、采用电解紫铜板做阴极(为了便于沉积金属铬，常用紫铜板)；d、电解电流1～2.5A；e、电解时间5～20分钟；f、采用二苯碳酰二肼国标测试废水铬含量。
进一步的，还可以选择铅、铅锑或铅锡合金、不溶性钛阳极等做为不溶性阳极；
进一步的，还可以选择铜、铜合金或不锈钢等作为阴极；
本发明一种电解处理高浓度含铬废水的方法，其优点及功效在于：工艺步骤合理可靠，处理后铬含量为1.83g/L，铬去除率为97.3％，同时在阴极沉积纯度＞95％金属铬，沉积出的金属铬纯度很高，杂质在可控范围，可以直接使用。
具体实施方式
实施例1
一种电解处理高浓度含铬废水的方法，其特征在于：采用如下步骤实现的：a、取200ml 40g/L含铬废水作为处理样本；b、采用电池铅板做不溶性阳极；c、采用电解紫铜板做阴极；d、电解电流1.5A；e、电解时间15分钟；f、采用二苯碳酰二肼国标测试废水铬含量。
实施例2
一种电解处理高浓度含铬废水的方法，其特征在于：采用如下步骤实现的：a、取200ml 35g/L含铬废水作为处理样本；b、采用铅锡合金板做不溶性阳极；c、采用不锈钢板做阴极；d、电解电流2.5A；e、电解时间15分钟；f、采用二苯碳酰二肼国标测试废水铬含量。
实施例3
一种电解处理高浓度含铬废水的方法，其特征在于：采用如下步骤实现的：a、取200ml 30g/L含铬废水作为处理样本；b、采用钛板做不溶性阳极；c、采用铜合金板做阴极；d、电解电流1A；e、电解时间15分钟；f、采用二苯碳酰二肼国标测试废水铬含量。

Claims (3)

1.一种电解处理高浓度含铬废水的方法，其特征在于：该方法采用如下步骤实现：a、取200ml 30～40g/L含铬废水作为处理样本；b、采用电池铅板做不溶性阳极；c、采用电解紫铜板做阴极；d、电解电流1～2.5A；e、电解时间5～20分钟；f、采用二苯碳酰二肼国标测试废水铬含量。
2.根据权利要求所述的一种电解处理高浓度含铬废水的方法，其特征在于：进一步的，还可以选择铅、铅锑或铅锡合金、不溶性钛阳极做为不溶性阳极。
3.根据权利要求所述的一种电解处理高浓度含铬废水的方法，其特征在于：进一步的，还可以选择铜、铜合金或不锈钢作为阴极。
CN201710255547.XA 2017-04-19 2017-04-19 一种电解处理高浓度含铬废水的方法 Pending CN107055700A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109179801A (zh) * 2018-09-11 2019-01-11 沈阳飞机工业（集团）有限公司 一种三价铬电镀废液的处理方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101321698A (zh) * 2005-11-30 2008-12-10 德诺拉工业有限公司 含六价铬溶液的电化学处理

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101321698A (zh) * 2005-11-30 2008-12-10 德诺拉工业有限公司 含六价铬溶液的电化学处理

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
雷英春: "电解法处理高浓度含铬废水回收铬的研究", 《安全与环境学报》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109179801A (zh) * 2018-09-11 2019-01-11 沈阳飞机工业（集团）有限公司 一种三价铬电镀废液的处理方法

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Application publication date: 20170818