CN104310538A - 三维电极用于降解工业废水cod的方法 - Google Patents

三维电极用于降解工业废水cod的方法 Download PDF

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CN104310538A
CN104310538A CN201410520131.2A CN201410520131A CN104310538A CN 104310538 A CN104310538 A CN 104310538A CN 201410520131 A CN201410520131 A CN 201410520131A CN 104310538 A CN104310538 A CN 104310538A
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electrode
wastewater
reactor
cod
waste water
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陆强
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SHAANXI HUALU CHEMICAL ENVIRONMENTAL PROTECTION Co Ltd
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SHAANXI HUALU CHEMICAL ENVIRONMENTAL PROTECTION Co Ltd
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Priority to CN201410520131.2A priority Critical patent/CN104310538A/zh
Publication of CN104310538A publication Critical patent/CN104310538A/zh
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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
    • C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
    • 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
    • C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
    • C02F1/4676—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electroreduction
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/30—Nature of the water, waste water, sewage or sludge to be treated from the textile industry
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
    • C02F2103/343—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the pharmaceutical industry, e.g. containing antibiotics
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
    • C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
    • C02F2103/365—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds from petrochemical industry (e.g. refineries)

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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

本发明涉及一种三维电极用于降解工业废水COD的方法，属于废水处理方法领域。所述的三维电极用于降解工业废水COD的方法，包括以下步骤：将废水经过滤栅、调节池均衡水质、水量后，将废水以一定的速度泵入容积为70L的三维电极反应器，调节三维电极反应器各参数，进行电解90min后，将电解处理后的废水放出反应器进行其他工艺处理。本发明所述的三维电极用于降解工业废水COD的方法，利用电催化氧化还原反应原理来去除废水中的COD，其去除率在64-95%之间，三维电极具有很强的降解废水COD的能力，可用于工业废水中COD的去除处理工艺中。

Description

三维电极用于降解工业废水COD的方法
技术领域
本发明涉及一种三维电极用于降解工业废水COD的方法，属于废水处理方法领域。
背景技术
三维电极又名三元电极，也叫粒子电极或床电极，它是在传统的二维电解槽电极间装填粒状或其它碎屑状工作电极材料，并使装填工作材料表面带电，成为新的一极（第三极），且在工作电极材料表面能发生电化学反应。三维电极处理废水的基本原理是电催化氧化还原反应。它能够增加电解槽的面体比，提高电流效率和处理效果。在三维电极处理废水的效率及三维电极电化学宏观理论方面，国内外研究工作者已做了大量工作，但仍然存在一些问题，如具体的电化学反应历程，有机物降解的机理等方面研究较少，另外仍需设计优化床体，优选各项操作参数；优选填充粒子电极及主电极材料等问题。
发明内容
本发明旨在提供一种具有很强的降解废水COD 的能力的三维电极电化学反应器各参数的最佳水平组合。
本发明所述的三维电极用于降解工业废水COD的方法，包括以下步骤：
将废水经过滤栅、调节池均衡水质、水量后，将废水以一定的速度泵入容积为70L的三维电极反应器，调节三维电极反应器各参数，进行电解90min后，将电解处理后的废水放出反应器进行其他工艺处理。
优选的，本发明所述的三维电极反应器参数为电解电流为12A、填充粒子是3-5mm活性炭颗粒，填充量为35kg，采用不锈钢电极，电极间距为40cm。
更优选取的，本发明所述的废水泵入速度为50L/h。
本发明所述的方法中，采用三维电极处理废水，其基本原理是电催化氧化还原反应。三维电极能够增加电解槽的面体比，提高电流效率和处理效果。经测试，三维电极填充不同粒径的活性炭、填充量以及电极间距，COD去除率不同，最高去除率是活性炭的粒径为3-5mm，电极间距为40cm，填充量为700-980g/L。三维电极对废水COD去除率与槽电流关系密切，且COD去除率随电流增加而增加，但槽电流的增加因受节能及供电整流设备等因素影响有一定的限度。在相同的电解条件下，在一定的时间内三维电极对废水COD去除率随电解时间增加而增加，但在120min后，去除率增加已不太明显，考虑到运行成本以及处理速度，选择90-100min较合理。
本发明所述的三维电极用于降解工业废水COD的方法，利用电催化氧化还原反应原理来去除废水中的COD，其去除率在64-95%之间，三维电极具有很强的降解废水COD的能力，可用于工业废水中COD的去除处理工艺中。
具体实施方式
实施例一：
将废水经过滤栅、调节池均衡水质、水量后，将废水以50L/h的速度泵入容积为70L的三维电极反应器，调节三维电极反应器各参数（电解电流为12A、填充粒子是3-5mm活性炭颗粒，填充量为35kg，采用不锈钢电极，电极间距为40cm），进行电解90min后，将电解处理后的废水放出反应器进行其他工艺处理。
实施例二：处理效果
使用本发明所述的方法，对各种工业废水的处理效果如表-1所示。
表-1 废水处理效果
。 

Claims (3)

1.三维电极用于降解工业废水COD的方法，包括以下步骤：
将废水经过滤栅、调节池均衡水质、水量后，将废水以一定的速度泵入容积为70L的三维电极反应器，调节三维电极反应器各参数，进行电解90min后，将电解处理后的废水放出反应器进行其他工艺处理。
2. 如权利要求1所述的三维电极用于降解工业废水COD的方法，其特征在于所述的三维电极反应器参数为电解电流为12A、填充粒子是3-5mm活性炭颗粒，填充量为35kg，采用不锈钢电极，电极间距为40cm。
3. 如权利要求1所述的三维电极用于降解工业废水COD的方法，其特征在于所述的废水泵入速度为50L/h。
CN201410520131.2A 2014-09-30 2014-09-30 三维电极用于降解工业废水cod的方法 Pending CN104310538A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107417016A (zh) * 2017-04-17 2017-12-01 深圳清华大学研究院 一种含氰废水深度处理系统和方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107417016A (zh) * 2017-04-17 2017-12-01 深圳清华大学研究院 一种含氰废水深度处理系统和方法
CN107417016B (zh) * 2017-04-17 2020-01-24 深圳清华大学研究院 一种含氰废水深度处理系统和方法

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Application publication date: 20150128