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Coking wastewater treatment system

A treatment system and technology for coking wastewater, applied in special compound water treatment, water/sewage treatment, biological water/sewage treatment, etc., can solve problems such as high load value, high TN9 concentration, high toxicity of coking wastewater, etc.

Pending Publication Date: 2022-03-22
BEIJING SEN MIAO TIAN CHENG ENVIRONMENTAL PROTECTION TECH
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Problems solved by technology

However, the coking wastewater treated simply by the activated sludge process often still has the problem that the concentration of TN9 (ammonia nitrogen) and COD (permanganate) is still high
In addition, due to the high toxicity and high load value of the coking wastewater itself, it often impacts the load of the biochemical pool, resulting in problems such as a decline in the treatment performance of the biochemical pool.

Method used

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  • Coking wastewater treatment system
  • Coking wastewater treatment system
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Embodiment Construction

[0025] Unless otherwise defined, the technical terms or scientific terms used in the present invention shall have the usual meanings understood by those skilled in the art to which the present invention belongs. "First", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Comprising" or "comprising" and similar words mean that the elements or items appearing before the word include the elements or items listed after the word and their equivalents, without excluding other elements or items. Words such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "Down", "Left", "Right" and so on are only used to indicate the relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may also change acc...

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Abstract

The present invention discloses a coking wastewater treatment system, which comprises: a precipitation regulation tank, coking water enters the precipitation regulation tank so as to precipitate solid impurities in the coking water; the first-stage constructed wetland is configured into an oxidizing constructed wetland, and the coking water treated by the precipitation regulating tank enters the first-stage constructed wetland to be treated; the coking water treated by the primary artificial wetland enters the Fenton reaction tank to be treated, and the Fenton reaction tank is used for treating the coking water by utilizing a Fenton technology; and the coking water treated by the Fenton reaction tank finally enters the clean water tank to be stored. The constructed wetland and the Fenton reaction tank are connected in series, so that advanced treatment of the coking water is realized, the treated water is clear, and the permanganate index, the ammonia nitrogen value and the volatile phenol value in the water are far lower than the national emission standard.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a coking wastewater treatment system. Background technique [0002] Since coal occupies a considerable proportion in my country's energy structure, in the next 50 years, the pattern of coal as my country's main one-time consumption energy will not be easily changed, thus stimulating the development of coal coking industry in my country. However, the rapid development of the coal coking industry has also led to an increase in the discharge of coking industrial wastewater. Usually, every ton of coke produced is about 1.18-1.83 tons of coking wastewater. The annual discharge of coking wastewater in my country is about 2.85×10 8 Ton. Coking wastewater is a kind of wastewater containing refractory organic pollutants with high concentration of ammonia nitrogen and organic matter. The massive discharge of coking wastewater will not only cause environmental pollution, but also...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/34C02F101/16
CPCC02F9/00C02F2001/007C02F3/32C02F1/725C02F2305/026C02F2101/16C02F2101/345
Inventor 禹宙毛捷时光寨陈国强
Owner BEIJING SEN MIAO TIAN CHENG ENVIRONMENTAL PROTECTION TECH
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