出口化工污水处理设备
编辑：出口污水处理设备 来自：https://www.zqwscl.com /日期：2022-09-06 14:00 / 人气：
化工污水是指化工厂生产过程中所产生的污水，如生产乙烯、聚乙烯、橡胶、聚酯、甲醇、乙二醇、油品罐区、空分空压站等装置的含油污水。为确保水资源的可持续发展，需要对化工污水进行深度处理，作为循环水的补水或动力脱盐水的补水，实现污水再利用。在出口化工污水处理设备方面，山东中侨启迪针对化工污水处理制定了以下工艺方案和主要设备选择：
1、预处理曝气池
根据提供的进水水质情况来看，水温较高达60℃左右，有机物浓度也较高，为了降低后续处理的负荷，使出水达标排放，故考虑在物化及生化处理前进行预处理。
通过充氧曝气达到冷却降温，并吸脱部分氨氮酚等有机物从水中逸入大气，同时在池中投加硫酸亚铁及石灰，使废水中有机物进行氧化及分析，降低有机物质。
2、沉淀吸附池
通过加药混凝反应沉淀及煤渣层的吸附，使废水得以净化，部分所氮及酚等有机物的浓度降低为后道生化处理创造条件。
3、厌氧-缺氧-好氧生化处理（A2/O法）
A2/O法生物脱氮工艺是传统的活性污泥工艺，生物硝化工艺和生物除氮、磷工艺的综合，A2/O法的活性污泥中菌群主要由硝化菌组成在好氧段硝化菌将入水中的氨氮通过生物硝化作用转化成硝酸盐：在缺氧段反硝化细菌将内回流带入的硝酸盐通过生物反硝化作用转达化成氮逸入大气中，从而达到脱氮的目的，在厌氧段聚磷菌释放磷并吸收低级脂肪酸等易降解的有机物，而在好氧段聚磷菌超量吸收磷，并通过剩余污泥的排放将磷去除，以上三类细菌均具有去除CODcr、BOD5的作用，但BOD5浓度进一步降低。
4、气浮装置
该装置采用溶气气浮原理，通过加药反应聚凝使废水中有机物质与药剂的粘附变成疏水颗粒或絮凝体在溶气水释放时产生微细气泡形成良好的气泡一絮凝体颗粒的结合体，使结合体与废水分离。
5、吸附过滤
将气浮装置净化后的废水流入装入焦碳或煤渣小颗粒中进行吸附过滤气浮净化后废水中尚未处理净的有机物吸入煤渣等颗粒中达到吸附作用。
以上就是山东中侨启迪出口化工污水处理设备的工艺方案，希望对您有所帮助。如果您有意向购买污水处理设备，可以咨询中侨启迪的客服或者到公司参观考察，期待与您的合作！
As a large water user, the annual fresh water consumption of chemical plants is generally several million cubic meters, the reuse rate of water is low, and the external discharge of millions of cubic meters of sewage not only wastes a lot of water resources, but also causes environmental pollution, and the shortage of water resources has threatened the production of these large industrial water users.
Chemical sewage refers to the sewage produced in the production process of chemical plants, such as oily sewage produced by devices such as ethylene, polyethylene, rubber, polyester, methanol, ethylene glycol, oil tank farm, air separation air pressure station and other devices. In order to ensure the sustainable development of water resources, it is necessary to treat chemical sewage in depth as a supplement to circulating water or power desalination water to achieve sewage reuse. In terms of exporting chemical sewage treatment equipment, Shandong Zhongqiao Tuspark has formulated the following process schemes and main equipment options for chemical sewage treatment:
1. Pretreatment aeration tank
According to the quality of the inlet water provided, the water temperature is higher up to about 60 ° C, the concentration of organic matter is also higher, in order to reduce the load of subsequent treatment, so that the effluent discharge standard, so consider pretreatment before physical and biochemical treatment.
Cooling and cooling are achieved through oxygenation and aeration, and some organic matter such as aminozophenol is aspirated from the water to escape into the atmosphere, and at the same time, ferrous sulfate and lime are added to the pool to make the organic matter in the wastewater oxidized and analyzed, and the organic matter is reduced.
2. Sedimentation adsorption tank
Through the precipitation of the dosing coagulation reaction and the adsorption of the cinder layer, the wastewater can be purified, and the concentration of some organic matter such as nitrogen and phenol is reduced to create conditions for the biochemical treatment of the posterior road.
3. Anaerobic-hypoxia-aerobic biochemical treatment (A2/O method)
A2/O method biological denitrification process is the traditional activated sludge process, biological nitrification process and biological nitrogen removal, phosphorus process synthesis, A2 / O method of activated sludge bacteria mainly composed of nitrifying bacteria in the aerobic stage nitrification bacteria will enter the water ammonia nitrogen through biological nitrification into nitrate: in the hypoxia stage of the denitrification bacteria will be carried into the internal return of the nitrate through the biological denitrification of the nitrate through the biological denitrification effect to transfer into nitrogen escape into the atmosphere, so as to achieve the purpose of nitrogen removal, in the anaerobic stage of the polyphosphorus bacteria release phosphorus and absorb low-grade fatty acids and other easily degradable organic matter In the aerobic section, polyphosphorus overabotinates phosphorus and removes phosphorus through the discharge of residual sludge, and the above three types of bacteria have the effect of removing CODcr and BOD5, but the BOD5 concentration is further reduced.
4. Air flotation device
The device adopts the principle of dissolved gas flotation, through the dosing reaction condensation, the adhesion of organic matter and agents in the wastewater becomes hydrophobic particles or flocs produce fine bubbles when the dissolved gas water is released to form a good combination of bubbles and flocculate particles, so that the bindings are separated from the wastewater.
5. Adsorption filtration
The wastewater purified by the air flotation device flows into the small particles of coke or cinder for adsorption and filtering The organic matter that has not been treated in the wastewater after air flotation purification is inhaled into the particles such as cinder to achieve adsorption.
The above is the process scheme of Shandong Zhongqiao Tuspark export chemical sewage treatment equipment, I hope to help you. If you are interested in purchasing sewage treatment equipment, you can consult the customer service of Zhongqiao Tuspark or visit the company, and look forward to cooperating with you!
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