Waste water treatment by air oxidation
Wet catalytic oxidation, the standard abbreviation CWO, refers to raising the temperature of wastewater to 180 ℃ - 325 ℃, using the oxygen in the air to increase the solubility with the increase of pressure. Under the action of catalyst, oxygen molecules and organics in wastewater undergo a rapid oxidation reaction, resulting in ring breaking and chain breaking of organics, which are collectively referred to as degradation.
The principle of degradation reaction is free radical chain reaction. The primary products of oxidative degradation are simple organic acids and organic alcohols below C4. Some of the degradation products will be deeply degraded and mineralized into carbon dioxide to form the removal of TOC. The degradation rule is that the higher the reaction temperature is, the greater the proportion of deep degradation to carbon dioxide is.The catalytic strength can reduce the energy level of degradation reaction and increase the speed of degradation reaction. The top of wet catalytic oxidation process is supercritical oxidation.
Medium temperature and medium pressure wet catalytic oxidation is a kind of wet catalytic oxidation. It refers to the process of wet catalytic air oxidation in the temperature range of 180 ℃ - 258 ℃ and the corresponding pressure range of 2.5mpa-5.0mpa.
A large number of engineering practices have proved that: wet catalytic oxidation in the middle temperature and middle pressure section can obtain good degradation effect and appropriate COD removal effect, supplemented by other low-cost sewage degradation means, can obtain the best economy (investment, operation, life).
Technical Featuresof
- The maximum inlet temperature of medium temperature and medium pressure system shall not exceed 258 ℃, and the maximum operating pressure shall not exceed 5.0mpa. The pressure control is very stable, the service life of the equipment is long, and the failure rate is low.
- Under the operation condition of medium temperature and medium pressure system, the system has relatively small supplementary heat and low pressure, and the operation power consumption of air compressor is low. The main operating cost of wet oxygen process comes from air compressor and hot oil furnace. Therefore, the operating cost of medium temperature and medium pressure system is generally reduced by about 50% compared with that of high temperature and high pressure wet oxygen system.
- The system adopts our unique long-term fixed bed catalysis, namely heterogeneous catalysis system. Its advantage is that no heavy metal ions (commonly used homogeneous catalytic materials) are added into the tower materials to avoid secondary pollution caused by heavy metals and reduce the cost of operation catalysis.
More information please via:
在线联系供应商
Other supplier products
 |
Acetic Acid Plant | Acetic Acid Plant Proprietary Technology and Plants SL TEC has 15 years experience in acetic acid industry from technology R&D, plant design, e... |
|
|
Waste water treatment by air oxidation | Wet catalytic oxidation, the standard abbreviation CWO, refers to raising the temperature of wastewater to 180 ℃ - 325 ℃, using the oxygen in the ... |
 |
Urea Formaldehyde (UF) Glue Plant | Urea Formaldehyde (UF) Glue Plant Agent Technology and Plants Technology Introduction The Urea Formaldehyde (UF) technology provided by SL... |
 |
PPC Plant | is acompletely biodegradable environment-friendly plastic synthesized from carbon dioxide and propylene oxide. Besides, due to its using the main... |
 |
Methylal Refining Technology China | Air Separation Packing Air Separation Unit (ASU) Packing Air Separation Packing Air Separation Packing Technology Distillation Technolo... |
Same products
 |
使用 MaAnt M061 镀金焊针进行高效焊接 | 卖方: 深圳市维客修科技有限公司 | MaAnt M061 镀金轻型碳纤维手柄拖锡针套装，可在电子/手机主板 FPC 连接器上均匀快速填锡。MaAnt M061 BGA 回弹焊锡棒镀金拖锡针采用圆球头设计，无棱角、无划痕，不会损坏 ... |
 |
High Hardness Linear Rail Flat Bed CNC Lathe | 卖方: Zhejiang Guoyu CNC Machine Tool Co., Ltd. | It can cut all kinds of turning surfaces by bicycle, such as conical surfaces, special surfaces, ... |
 |
Automation Suction Cups | 卖方: 浙江石井工具有限公司 | The ALUMINUM SUCTION CUP 6106 D is a versatile and reliable tool designed to handle various lif... |
 |
Machinery | 卖方: O&K GROUP LIMITED | Okwishing supplies all kinds of Machinery. Okwishing () is a cross-border e-commerce platform de... |
 |
Mini Excavator Carrier Roller for Kobelco SK045/SK045SR/SK50SR/SK70SR | 卖方: 厦门球实贸易有限公司 | The carrier roller use 50Mn steel, after free forging into work-piece by a 560KG air hammer, comp... |
