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Coking wastewater advanced treatment method and system

A coking wastewater and advanced treatment technology, which is applied in multi-stage water treatment, water/sewage treatment, natural water treatment, etc., can solve the problem that the coking wastewater treatment process cannot meet the discharge requirements, and achieve stable and efficient treatment effects, pharmaceutical use The effect of small amount and low energy consumption

Inactive Publication Date: 2016-09-21
HUATIAN ENG & TECH CORP MCC +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the problem that the existing coking wastewater treatment process fails to meet the discharge requirements, the present invention provides a coking wastewater advanced treatment method and system that can effectively improve the effluent quality of coking wastewater treatment

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  • Coking wastewater advanced treatment method and system

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Embodiment 1

[0033] The coking wastewater advanced treatment system in this embodiment includes pH value detection equipment, pH value adjustment equipment, microwave treatment equipment, iron-carbon micro-electrolytic catalytic reduction treatment equipment, heterogeneous Fenton catalytic oxidation treatment equipment, mixed Coagulation treatment equipment, microfiltration treatment device, aeration device; wherein, the heterogeneous Fenton catalytic oxidation treatment equipment includes FeSO 4 Solution dosing device and H 2 o 2 A solution dosing device, the coagulation treatment equipment includes a coagulation tank, a sedimentation tank, an activated carbon dosing device and a coagulant aid dosing device.

[0034] The pH value detection equipment and the pH value adjustment equipment are used to detect and adjust the pH value of the coking wastewater;

[0035] The microwave treatment equipment is used for microwave radiation treatment of coking wastewater after biochemical treatment;...

Embodiment 2

[0042] The coking wastewater advanced treatment method in this embodiment is realized by the coking wastewater advanced treatment system in Example 1.

[0043] The specific process of the coking wastewater advanced treatment method in this embodiment is as follows: the coking wastewater after biochemical treatment is first subjected to microwave treatment by microwave radiation equipment to heat and polarize organic pollutant molecules. The optimal power range of microwave is 200-600w , The optimal microwave reaction time is 3-10min. Then use PH value detection equipment and PH value adjustment equipment to use 1+3 sulfuric acid solution to adjust the pH value of the microwave-treated effluent to 3-5, and use iron-carbon micro-electrolytic catalytic reduction treatment equipment to carry out iron-carbon micro-electrolytic catalytic reduction treatment of coking wastewater for iron-carbon micro-electrolytic catalytic reduction treatment. For carbon micro-electrolysis catalytic ...

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Abstract

The invention discloses a coking wastewater advanced treatment method and system and mainly aims to solve the problem that wastewater treated with a conventional coking wastewater treatment technology cannot meet an emission standard. According to the coking wastewater advanced treatment method and system, coking wastewater treated by a biochemical system is firstly treated through microwave radiation and then is subjected to iron-carbon micro-electrolysis catalytic reduction treatment, the wastewater is further subjected to heterogeneous Fenton catalytic oxidation treatment and subjected to coagulating sedimentation treatment and microfiltration treatment, and finally, the wastewater meets the emission standard. The coking wastewater advanced treatment method and system solve the problem that the coking wastewater after biochemical treatment cannot meet the emission standard with the conventional coking wastewater treatment technology, and have the characteristics of low chemical dosage, low sludge yield, low energy consumption and stable and efficient treatment effect.

Description

technical field [0001] The invention relates to the field of wastewater treatment, in particular to a method and system for advanced treatment of coking wastewater. Background technique [0002] Coking wastewater refers to the wastewater containing a large amount of toxic and harmful substances such as phenol, cyanide, oil, ammonia nitrogen, etc. discharged during the coking production process. The remaining ammonia water produced in the process is the main source. Affected by many factors such as the nature of raw coal and the recovery of coking products, the composition of coking wastewater is very complex and contains a variety of pollutants. Among them, the organic matter is mainly phenolic compounds, which account for more than half of the total organic matter. The organic matter also includes polycyclic aromatic compounds. Group compounds and heterocyclic compounds containing nitrogen, oxygen, sulfur, etc.; inorganic substances are mainly cyanide, sulfide, ammonium sa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/08C02F103/36
CPCC02F1/302C02F1/444C02F1/4678C02F1/56C02F1/725C02F9/00C02F2103/365C02F2301/08
Inventor 刘训东程寒飞李启超詹茂华安浩冯植飞姚立荣
Owner HUATIAN ENG & TECH CORP MCC
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