Activated carbon treatment technology for organic wastewater

A technology of organic wastewater and treatment process, applied in the direction of adsorption water/sewage treatment, water/sludge/sewage treatment, water pollutants, etc., can solve environmental pollution, waste of resources and other problems, achieve high degree of automation and fast heating speed , the effect of low energy consumption

Inactive Publication Date: 2015-05-13
上海三夫工程技术有限公司
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  • Description
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Problems solved by technology

However, after a certain period of use of activated carbon, the adsorption capacity will reach saturation, that is, it will no longer have the a

Method used

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  • Activated carbon treatment technology for organic wastewater

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Effect test

Embodiment 1

[0023] The water output from the secondary settling tank of a domestic sewage treatment station, the water volume is 100m 3 / h, COD: 80~100mg / L, pumped into the first activated carbon adsorption tower 1 through the wastewater lifting pump, the contact time of the wastewater in the activated carbon tower is 5~7min, fully contact with the activated carbon so that the organic matter in it is loose and porous activated carbon Further adsorption and removal. The treated wastewater COD<50mg / L is discharged from the top of the adsorption tower and directly reused in the circulating cooling water system.

[0024] After 72 hours of adsorption, the activated carbon reached adsorption saturation and lost its adsorption function. Now, switch to the second activated carbon adsorption tower 2, and simultaneously the activated carbon adsorbed and saturated in the first activated carbon adsorption tower 1 is introduced into the hydrocyclone 3, and the dilute phase therein, that is, the organ...

Embodiment 2

[0028] A coking wastewater biochemical + MBR water production, water volume 50m 3 / h, COD: 200~350mg / L, TDS: about 3500mg / L, pumped into the first activated carbon adsorption tower 1 through the wastewater lift pump, the contact time of the wastewater in the activated carbon tower is 12~15min, fully contact with the activated carbon to make it The organic matter is further adsorbed and removed by the loose and porous activated carbon. The treated wastewater COD<60mg / L is discharged from the top of the adsorption tower and enters the subsequent advanced treatment unit.

[0029] After 36 hours of adsorption, the activated carbon reached adsorption saturation and lost its adsorption function. Now, switch to the second activated carbon adsorption tower 2, and simultaneously the activated carbon absorbed and saturated in the first activated carbon adsorption tower 1 is introduced into the hydrocyclone 3, and the dilute phase therein, that is, the organic waste water is refluxed fr...

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Abstract

An activated carbon treatment technology for organic wastewater comprises steps such as biochemical treatment, activated charcoal adsorption, suspension separation, microwave regeneration of activated carbon and introduction of generated activated carbon. Two activated charcoal adsorption towers are adopted to perform adsorption alternately and regenerate adsorption-saturated activated carbon alternately so as to realize continuous operation. According to the technology, on-line regeneration of activated carbon is realized by micro-wave heating, the degree of automation is high, the operation is simple and convenient, and the realization of industrialization is facilitated. During micro-wave heating, moisture in activated carbon is vaporized quickly to generate high-temperature vapor, organic substances adsorbed in micro-pores of the activated carbon can be blown out and flaked off quickly by the high-temperature vapor, the organic substances are hard to carbonize and cannot block the micro-pores at a temperature below 650DEG C, and the regeneration efficiency of activated carbon is high.

Description

technical field [0001] The invention relates to waste water treatment, in particular to an activated carbon treatment process for organic waste water. Background technique [0002] Activated carbon has a highly developed pore structure and a large specific surface area. It is non-toxic, odorless, and has a strong adsorption capacity for molecules. It is an excellent adsorbent and is widely used in the fields of water purification and wastewater treatment. However, after a certain period of use of activated carbon, the adsorption capacity will reach saturation, that is, it will no longer have the adsorption function. If it is replaced and discarded directly, it will undoubtedly be a waste of resources and cause pollution to the environment. Therefore, the development of regeneration technology of saturated activated carbon has important economic value and social and environmental benefits. [0003] At present, activated carbon regeneration technologies mainly include heating...

Claims

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Application Information

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IPC IPC(8): C02F1/28B01J20/34B01J20/20C02F101/30
Inventor 张国兴金鸣林刘景霞李俊
Owner 上海三夫工程技术有限公司
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