设计简介
三唑磷农药废水处理工艺设计
摘 要：三唑磷因为其低毒，高效，广谱杀菌性而在农业生产中广泛应用，但是在生产过程中，会产生大量的废水，这些废水含有高浓度的有机物质。废水中含有的农药中间产物化学性质稳定，可生化性差，难分解,具有很强的毒性，很高的色度，还会散发刺激性气味。这些都严重的污染了环境。这种废水的处理已经成为废水处理工程的瓶颈，一般的方法是将废水稀释之后再进行生化处理。当前已具规模的处理方法有生化法，吸附法和焚烧法。
采用预氧化－ClO2催化氧化—SBR法对农药废水进行处理。在预氧化过程中，pH为1.38，停留时间为1h，COD去除率为10%；在催化氧化过程中，pH为6-7，ClO2投加量为1mg/L，停留时间为1h；最后用SBR生化法进行处理，出水达到《污水综合排放》（GB 8978-1996）一级排放标准。
关键词：三唑磷 催化氧化 SBR生化法 农药废水
Process Design of Pesticide Triazophos Wastewater Treatment
Abstract：Triazophos is widely used in agriculture because of its low-toxic, high-effective and broad-spectrum, but in the process of its production, large volume of wastewater need to be deal with. The wastewater contain high concentration of organic substance, the stable intermediates are hard to remove and degraded. Their serious toxicity, black color and odorous smell pollute the environment seriously. The treatment of the waste now is a bottleneck in the engineering. The normal method to treat the waste is to dilute it first and then treat it by biodegradation. Now the treatment in industry scale is biodegradation, absorption and burning.
The preoxidation/chlorine dioxide catalytic oxidation/SBR biodegradation process was used to treat the wastewater from production of triazophos. In the preoxidation process, the pH was 1.38 and reaction time was 1 hour, the removal rates of COD was 10%; In the catalytic oxidation, the pH was 6-7, chlorine dioxide dosage 1.0g/L and reaction time is 1 hour; After biodegradation process, the effluent is acceptable to meet the requirement of class I in The national wastewater discharge standard(GB 8978-96).
Key words：Triazophos catalytic oxidation SBR biodegradation pesticide wastewater
目 录
1 前言…………………………………………………………………………………………1
1.1我国农药废水处理现状与发展前景……………………………………………………1
1.2 设计依据…………………………………………………………………………………2
1.3废水水质、水量…………………………………………………………………………2
1.4处理要求：………………………………………………………………………………3
1.5设计原则：………………………………………………………………………………3
1.6设计构筑物………………………………………………………………………………3
1.7设计方案的选择、原理与特点……………………………………………………………3
2 唑磷废水处理工艺设计计算 ……………………………………………………………4
2.1调节池 ……………………………………………………………………………………4
2.1.1调节池作用………………………………………………………………………………4
2.1.2调节池设计………………………………………………………………………………4
2.2混凝沉淀池……………………………………………………………………………7
2.2.1中和池……………………………………………………………………………………7
2.2.2、混合池…………………………………………………………………………………9
2.2.3凝聚池…………………………………………………………………………………10
2.2.4加药槽…………………………………………………………………………………10
2.2.5斜管沉淀池……………………………………………………………………………11
2.3中间池 ………………………………………………………………………………14
2.4保安器……………………………………………………………………………………14
2.4.1保安器结构及作用……………………………………………………………………14
2.4.2保安器设计……………………………………………………………………………15
2.5二氧化氯特性及其制备…………………………………………………………………17
2.5.1二氧化氯在废水处理当中的应用……………………………………………………17
2.5.2二氧化氯的制备………………………………………………………………………17
2.5.3二氧化氯协同发生器的选择…………………………………………………………18
2.6催化氧化塔………………………………………………………………………………18
2.6.1催化氧化剂……………………………………………………………………………18
2.6.2塔身设计……………………………………………………………………………19
2.6.3曝气系统……………………………………………………………………………19
2.6.4进水系统……………………………………………………………………………20
2.6.5反冲水设计……………………………………………………………………………20
2.7储水池 …………………………………………………………………………………21
2.7.1尺寸确定 ……………………………………………………………………………21
2.7.2注意事项及汲水泵选择……………………………………………………………22
2.8
生化反应器…………………………………………………………………………22
2.8.1
特点………………………………………………………………………………22
2.8.2、设计
进水的水质水量……………………………………………………………22
2.8.3反应池运行周期各工序时间计算……………………………………………………23
2.8.4反应池容积计算………………………………………………………………………24
2.8.5曝气量计算……………………………………………………………………………25
2.8.6剩余污泥排放…………………………………………………………………………25
2.8.7滗水器…………………………………………………………………………………26
2.8.8自动控制系统…………………………………………………………………………26
2.8.9设备选型………………………………………………………………………………26
2.9储泥池 …………………………………………………………………………………26
2.10板框压滤机……………………………………………………………………………27
2.11滤液池…………………………………………………………………………………28
2.12清水池…………………………………………………………………………………28
3 投资估算…………………………………………………………………………………29
4 安全及环保说明…………………………………………………………………………30
5 经济及社会效益说明……………………………………………………………………30
参考文献……………………………………………………………………………………31
致谢…………………………………………………………………………………………32
摘 要：三唑磷因为其低毒，高效，广谱杀菌性而在农业生产中广泛应用，但是在生产过程中，会产生大量的废水，这些废水含有高浓度的有机物质。废水中含有的农药中间产物化学性质稳定，可生化性差，难分解,具有很强的毒性，很高的色度，还会散发刺激性气味。这些都严重的污染了环境。这种废水的处理已经成为废水处理工程的瓶颈，一般的方法是将废水稀释之后再进行生化处理。当前已具规模的处理方法有生化法，吸附法和焚烧法。
采用预氧化－ClO2催化氧化—SBR法对农药废水进行处理。在预氧化过程中，pH为1.38，停留时间为1h，COD去除率为10%；在催化氧化过程中，pH为6-7，ClO2投加量为1mg/L，停留时间为1h；最后用SBR生化法进行处理，出水达到《污水综合排放》（GB 8978-1996）一级排放标准。
关键词：三唑磷 催化氧化 SBR生化法 农药废水
Process Design of Pesticide Triazophos Wastewater Treatment
Abstract：Triazophos is widely used in agriculture because of its low-toxic, high-effective and broad-spectrum, but in the process of its production, large volume of wastewater need to be deal with. The wastewater contain high concentration of organic substance, the stable intermediates are hard to remove and degraded. Their serious toxicity, black color and odorous smell pollute the environment seriously. The treatment of the waste now is a bottleneck in the engineering. The normal method to treat the waste is to dilute it first and then treat it by biodegradation. Now the treatment in industry scale is biodegradation, absorption and burning.
The preoxidation/chlorine dioxide catalytic oxidation/SBR biodegradation process was used to treat the wastewater from production of triazophos. In the preoxidation process, the pH was 1.38 and reaction time was 1 hour, the removal rates of COD was 10%; In the catalytic oxidation, the pH was 6-7, chlorine dioxide dosage 1.0g/L and reaction time is 1 hour; After biodegradation process, the effluent is acceptable to meet the requirement of class I in The national wastewater discharge standard(GB 8978-96).
Key words：Triazophos catalytic oxidation SBR biodegradation pesticide wastewater
目 录
1 前言…………………………………………………………………………………………1
1.1我国农药废水处理现状与发展前景……………………………………………………1
1.2 设计依据…………………………………………………………………………………2
1.3废水水质、水量…………………………………………………………………………2
1.4处理要求：………………………………………………………………………………3
1.5设计原则：………………………………………………………………………………3
1.6设计构筑物………………………………………………………………………………3
1.7设计方案的选择、原理与特点……………………………………………………………3
2 唑磷废水处理工艺设计计算 ……………………………………………………………4
2.1调节池 ……………………………………………………………………………………4
2.1.1调节池作用………………………………………………………………………………4
2.1.2调节池设计………………………………………………………………………………4
2.2混凝沉淀池……………………………………………………………………………7
2.2.1中和池……………………………………………………………………………………7
2.2.2、混合池…………………………………………………………………………………9
2.2.3凝聚池…………………………………………………………………………………10
2.2.4加药槽…………………………………………………………………………………10
2.2.5斜管沉淀池……………………………………………………………………………11
2.3中间池 ………………………………………………………………………………14
2.4保安器……………………………………………………………………………………14
2.4.1保安器结构及作用……………………………………………………………………14
2.4.2保安器设计……………………………………………………………………………15
2.5二氧化氯特性及其制备…………………………………………………………………17
2.5.1二氧化氯在废水处理当中的应用……………………………………………………17
2.5.2二氧化氯的制备………………………………………………………………………17
2.5.3二氧化氯协同发生器的选择…………………………………………………………18
2.6催化氧化塔………………………………………………………………………………18
2.6.1催化氧化剂……………………………………………………………………………18
2.6.2塔身设计……………………………………………………………………………19
2.6.3曝气系统……………………………………………………………………………19
2.6.4进水系统……………………………………………………………………………20
2.6.5反冲水设计……………………………………………………………………………20
2.7储水池 …………………………………………………………………………………21
2.7.1尺寸确定 ……………………………………………………………………………21
2.7.2注意事项及汲水泵选择……………………………………………………………22
2.8
生化反应器…………………………………………………………………………222.8.1
特点………………………………………………………………………………222.8.2、设计
进水的水质水量……………………………………………………………222.8.3反应池运行周期各工序时间计算……………………………………………………23
2.8.4反应池容积计算………………………………………………………………………24
2.8.5曝气量计算……………………………………………………………………………25
2.8.6剩余污泥排放…………………………………………………………………………25
2.8.7滗水器…………………………………………………………………………………26
2.8.8自动控制系统…………………………………………………………………………26
2.8.9设备选型………………………………………………………………………………26
2.9储泥池 …………………………………………………………………………………26
2.10板框压滤机……………………………………………………………………………27
2.11滤液池…………………………………………………………………………………28
2.12清水池…………………………………………………………………………………28
3 投资估算…………………………………………………………………………………29
4 安全及环保说明…………………………………………………………………………30
5 经济及社会效益说明……………………………………………………………………30
参考文献……………………………………………………………………………………31
致谢…………………………………………………………………………………………32
