CN105384306A - 一种高效污水cod处理方法 - Google Patents

一种高效污水cod处理方法 Download PDF

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CN105384306A
CN105384306A CN201510807589.0A CN201510807589A CN105384306A CN 105384306 A CN105384306 A CN 105384306A CN 201510807589 A CN201510807589 A CN 201510807589A CN 105384306 A CN105384306 A CN 105384306A
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sewage
cod
treatment
contact oxidation
reactor
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何丹农
董毅
林琳
章龙
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Shanghai National Engineering Research Center for Nanotechnology Co Ltd
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Shanghai National Engineering Research Center for Nanotechnology Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56Macromolecular compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00Controlling or monitoring parameters in water treatment
    • C02F2209/08Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/28Anaerobic digestion processes

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

本发明公开了一种高效污水COD处理方法,涉及污水处理领域,该高效污水COD处理方法采用了驯化挂膜、厌氧水解酸化处理、好氧生物接触氧化处理、絮凝处理四个步骤,成本低廉,采用微生物分解污水,无二次污染,与常规化学处理方法比较,淤泥量更小,经过处理后的污水COD<100㎎/L,水质清澈透明,完全达到废水排放的标准。

Description

一种高效污水COD处理方法
技术领域
本发明涉及污水处理领域,更具体地说,本发明涉及一种高效污水COD处理方法。
背景技术
化学需氧量(COD)是评价废水污染程度的重要指标之一,它是以化学方法测量水样中需要被氧化的还原性物质的量,既废水、废水处理厂出水和受污染的水中,能被强氧化剂氧化的物质的氧当量。随着工业化的发展,特别是在炼油、石化、印染、造纸、皮革等行业,COD是也污水水质监测的重要参数。
由于国内环保行业目前针对此类污水治理技术滞后,随着化工业的发展,生态环境受到严重影响,其产生的化工废水中COD浓度高、毒性大、可生化性差,普通的工艺很难达到处理的预期效果。
本发明提供一种高效污水COD处理方法,通过采用厌氧水解酸化处理、好氧生物接触氧化处理、絮凝处理,以达到高效且低成本地降低污水COD数值至100㎎/L以下的目的。本发明通过长时间运行测试,试验系统稳定,实验所需材料来源广泛、装置操作简单、设备成本低,易于工业化扩大生产。
发明内容
为克服现有技术的不足,本发明提供一种高效污水COD处理方法,通过采用厌氧水解酸化处理、好氧生物接触氧化处理、絮凝处理,以达到高效且低成本地降低污水COD数值至100㎎/L以下的目的。
一种高效污水COD处理方法,其特征在于,所述高效污水COD处理方法的步骤如下:
(1)驯化挂膜:先将水解酸化菌放入鱼塘底泥中,经一周驯化挂膜后,逐步加入设定浓度的含季铵盐废水和N、P营养物,使其驯化挂膜;
(2)厌氧水解酸化处理:待水解酸化菌驯化挂膜稳定后,将污水和水解酸化菌加入厌氧生物反应器内进行厌氧水解酸化处理,定期取样分析pH值,并通过COD快速测定法测定污水的COD值;
(3)好氧生物接触氧化处理:将厌氧水解酸化处理后的污水加入到好氧生物接触氧化反应器中进行好氧生物接触氧化处理;
(4)絮凝处理:在进行好氧生物接触氧化处理后的污水中加入絮凝剂,再添加石灰作为助凝剂,进行絮凝处理后排出,再测定出水的COD值和pH值。
所述步骤(1)中的营养物质,NH4Cl和KH2PO4浓度分别为120mg/L和10mg/L。
所述步骤(2)中的厌氧生物反应器的有效容积不小于30L,且反应器内悬挂半软性材料。
所述步骤(3)中的好氧生物接触氧化反应器的有效容积不小于20L,且反应器内悬挂半软性材料。
所述步骤(4)中絮凝剂为硫酸铝:聚合铝:氯化镁的成分质量比为5:3:4。
采用以上技术方案的有益效果是:该高效污水COD处理方法采用了驯化挂膜、厌氧水解酸化处理、好氧生物接触氧化处理、絮凝处理四个步骤,成本低廉,采用微生物分解污水,无二次污染,与常规化学处理方法比较,淤泥量更小,经过处理后的污水COD<100㎎/L,水质清澈透明,完全达到废水排放的标准。
附图说明
图1是实施例1所得出水COD浓度变化曲线。
图2是实施例2所得出水COD浓度变化曲线。
图3是实施例3所得出水COD浓度变化曲线。
具体实施方式
下面详细说明本发明一种高效污水COD处理方法的优选实施方式:
该高效污水COD处理方法的步骤如下:
(1)驯化挂膜:先将水解酸化菌放入鱼塘底泥中,经一周驯化挂膜后,逐步加入设定浓度的含季铵盐废水和N、P营养物,使其驯化挂膜;
(2)厌氧水解酸化处理:待水解酸化菌驯化挂膜稳定后,将污水和水解酸化菌加入厌氧生物反应器内进行厌氧水解酸化处理,并定期取样分析,通过COD快速测定法测定污水的COD值;
(3)好氧生物接触氧化处理:将厌氧水解酸化处理后的污水加入到好氧生物接触氧化反应器中进行好氧生物接触氧化处理;
(4)絮凝处理:在进行好氧生物接触氧化处理后的污水中加入硫酸铝、聚合铝、氯化镁作为絮凝剂,再添加石灰作为助凝剂,进行絮凝处理后排出。
步骤2中的厌氧生物反应器的有效容积不小于30L,且反应器内悬挂半软性材料。步骤3中的好氧生物接触氧化反应器的有效容积不小于20L,且反应器内悬挂半软性材料。步骤4中絮凝剂的硫酸铝、聚合铝、氯化镁的成分质量比为5:3:4。
经过以上加工方法处理后,分别取出水样品,检测结果。
实施例1:
实验方法:
(1)向已知COD浓度的城市生活污水中加入定量葡萄糖和乙酸钠溶液或稀释,配制特定COD浓度的污水。
(2)按照图表中的参数,根据具体实施方法进行实验。
(3)测定进水和出水的pH值、COD浓度和浊度。
实施例2:
实验方法:
(1)向已知COD浓度的城市生活污水中加入定量葡萄糖和乙酸钠溶液或稀释,配制特定COD浓度的污水。
(2)按照图表中的参数,根据具体实施方法进行实验。
(3)测定进水和出水的pH值、COD浓度和浊度。
实施例3:
实验方法:
(1)向已知COD浓度的城市生活污水中加入定量葡萄糖和乙酸钠溶液或稀释,配制特定COD浓度的污水。
(2)按照图表中的参数,根据具体实施方法进行实验。
(3)测定进水和出水的pH值、COD浓度和浊度。

Claims (5)

1.一种高效污水COD处理方法,其特征在于,所述高效污水COD处理方法的步骤如下:
(1)驯化挂膜:先将水解酸化菌放入鱼塘底泥中,经一周驯化挂膜后,逐步加入设定浓度的含季铵盐废水和N、P营养物,使其驯化挂膜;
(2)厌氧水解酸化处理:待水解酸化菌驯化挂膜稳定后,将污水和水解酸化菌加入厌氧生物反应器内进行厌氧水解酸化处理,定期取样分析pH值,并通过COD快速测定法测定污水的COD值;
(3)好氧生物接触氧化处理:将厌氧水解酸化处理后的污水加入到好氧生物接触氧化反应器中进行好氧生物接触氧化处理;
(4)絮凝处理:在进行好氧生物接触氧化处理后的污水中加入絮凝剂,再添加石灰作为助凝剂,进行絮凝处理后排出,再测定出水的COD值和pH值。
2.根据权利要求1所述的高效污水COD处理方法,其特征在于,所述步骤(1)中的营养物质,NH4Cl和KH2PO4浓度分别为120mg/L和10mg/L。
3.根据权利要求1所述的高效污水COD处理方法,其特征在于,所述步骤(2)中的厌氧生物反应器的有效容积不小于30L,且反应器内悬挂半软性材料。
4.根据权利要求1所述的高效污水COD处理方法,其特征在于,所述步骤(3)中的好氧生物接触氧化反应器的有效容积不小于20L,且反应器内悬挂半软性材料。
5.根据权利要求1所述的高效污水COD处理方法,其特征在于,所述步骤(4)中絮凝剂为硫酸铝:聚合铝:氯化镁的成分质量比为5:3:4。
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1348987A (zh) * 2001-12-02 2002-05-15 重庆和润实业(集团)有限公司 一种高效处理污水淤泥的微生物菌群的制备方法
CN102485671A (zh) * 2010-12-01 2012-06-06 钟祥金汉江精制棉有限公司 一种处理精制棉生产过程污水及治污中臭气控制的方法
CN102951773A (zh) * 2012-11-29 2013-03-06 贵州长绿科技有限公司 一种处理啤酒废水的工艺
CN202849209U (zh) * 2012-09-20 2013-04-03 广西汇泰环保科技有限公司 一种罗汉果废水处理系统
CN104030533A (zh) * 2014-06-27 2014-09-10 广西壮族自治区环境保护科学研究院 木薯淀粉生产废水abic-生物接触氧化法-混凝处理组合工艺
CN204490597U (zh) * 2015-01-30 2015-07-22 四川永沁环境工程有限公司 新型高效生物降解装置

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CN202849209U (zh) * 2012-09-20 2013-04-03 广西汇泰环保科技有限公司 一种罗汉果废水处理系统
CN102951773A (zh) * 2012-11-29 2013-03-06 贵州长绿科技有限公司 一种处理啤酒废水的工艺
CN104030533A (zh) * 2014-06-27 2014-09-10 广西壮族自治区环境保护科学研究院 木薯淀粉生产废水abic-生物接触氧化法-混凝处理组合工艺
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Application publication date: 20160309