Coupling type coking wastewater advanced treatment process and coupling type coking wastewater advanced treatment device

A technology for coking wastewater and advanced treatment, which is applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, general water supply saving, etc. It can solve problems such as increased desalination costs, poor operating environment, and corrosion of pipe networks and equipment. , to achieve the effect of strong engineering application value, low operating cost and reasonable equipment design
CN102874992AActive Publication Date: 2013-01-16武汉钢铁有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
武汉钢铁有限公司
Publication Date
2013-01-16

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Abstract

The invention discloses a coupling type coking wastewater advanced treatment process and a coupling type coking wastewater advanced treatment device. The process is as follows: wastewater is introduced into a mixing-sinking tank, so that COD (Chemical Oxygen Demand) and suspended matters in the wastewater can be reduced, secondly, the wastewater is introduced into a multi-media filter to be further filtered, then the filtered wastewater is introduced into a three-dimensional electrode reactor of a fluidized bed to be subjected to electrocatalytic oxidation, and then is introduced into an MBR (Membrane Bio-Reactor), then the wastewater discharged from the MBR can be directly used as low-level water, and also the wastewater can continue to be subjected to the advanced treatment, and enters a cartridge filter, so that the suspended matters and activated sludge in the wastewater can be removed, and finally the wastewater enters a reverse osmosis device, and the treated produced water can be in the high-level. The device mainly comprises the mixing-sinking tank, the multi-media filter, the three-dimensional electrode reactor of the fluidized bed, the MBR, the cartridge filter and the reverse osmosis device. According to the process and the device, the design is reasonable, the difficulties of the advanced treatment and the reuse of coking wastewater can be solved, the engineering application value is extremely strong, and the produced water can meet the requirement of different levels of water.
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Description

technical field

[0001] The invention relates to the technical field of environmental protection, in particular to a coupled coking wastewater advanced treatment process and equipment thereof. Background technique

[0002] Coking wastewater is a kind of industrial wastewater that is recognized as difficult to biodegrade. The difficulty lies in the poor biodegradability of the wastewater. In addition to inorganic pollutants such as ammonia, cyanide and thiocyanate, it also contains heterocyclic rings such as phenols, naphthalene, pyridine, and quinoline. and polycyclic aromatic compounds (PAHS) and other substances that are difficult to biodegrade. These substances can have long-term effects on the environment, and some of them have been confirmed as carcinogens by research. In addition, high concentrations of ammonia nitrogen have a strong inhibitory effect on microbial activity. The effect of biological denitrification is not good. Currently, coking wastewater treatment sys...

Claims

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