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These contain a large number of biodegradable industrial wastewater discharges into the sewage treatment plant，resulting in major biochemical reactions is difficult。which led to the sewage treatment plant is not stable run. In parts of the sewage processing plant taken some of the strengthening measures can discharge standards of COD, of NH4+，N-such as conventional pollution indicators. the emission tail water still exists a large number of difficult degradation of organic matter. these organisms continue to be in the environment are widely exist and in the biosphere. enrichment cause greater harm to the ecological environment and biological populations. According to statistics, in 2005, over 70,000 enterprises and nearly 1.6 billion tons of sewage failed to discharge standards, making nearly half of the river and 90% of urban water pollution by different degrees of refractory organic pollutants in waste water has seriously affected the economy sustainable development of society and the ecological environment of human water security. In addition, studies have shown that, even far below the emission standards for organic wastewater is still able to biological hazards and they have a lasting effect on the environment, particularly.
Therefore, we should develop efficient handling of high concentrations of refractory new sound technology for organic waste water, waste water.Refractory organic pollutants harmless to have a key role in the protection of the ecological safety has become the current country important and difficult areas of academia and the engineering of internal and external environment.
Keywords: methacrylic acid; wastewater; wet air oxidation
目录
1 概论 1
1.1 概述 1
1.2 甲基丙烯酸废水以及处理[7-9] 1
1.3 催化湿式氧化催化剂[3-6] 2
1.4 CWAO 催化剂的失活问题 3
1.5 湿式氧化反应影响因素[1] 3
1.6 换热器的概述 4
1.7 换热器的技术概况 5
1.7.1 换热器设备的发展 6
1.7.2 换热器在工业生产中的应用 7
1.8 工业安全 8
1.9 工艺流程的确定 9
1.10 湿式氧化技术特点 10
1.11 对本设计评述 10
2 物料计算 11
2.1 废水成分的物料衡算 11
2.2 通入空气所需的量 12
2.3 反应器前后的流量计算 13
3热量衡算 15
3.1 焓的计算[10] 15
3.2 热容的计算[10] 15
3.3 反应焓的计算 15
3.4 热量的计算 16
3.4.1 Q1的计算 16
3.4.2 Q2的计算 16
3.4.4 Q4的计算 17
3.5 反应器的容积计算 17
3.6 反应器的体积设计 18
3.8 消耗在设备各个部件及管道上的热量Q5 19
3.9 热量衡算表 19
4设备选型及计算 20
4.1 预热器 20
4.1.1 进出口温度的设定 20
4.1.2 平均传热温差的计算 21
4.1.3 预热器热量的计算 21
4.1.4 预热器的换热面积计算 21
4.1.5 预热器的工艺结构尺寸的计算 21
4.2 加热器 25
4.2.1 加热器的换热面积的计算 25
4.2.2 平均传热温差的计算 25
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