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Process for treating coal chemical waste water

A technology of coal chemical wastewater and treatment process, which is applied in water/sewage multi-stage treatment, adsorbed water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problem that activated carbon pores cannot be fully utilized and activated carbon adsorption capacity is not sufficient Play and other problems to achieve the effect of improved biodegradability and good treatment effect

Active Publication Date: 2012-09-05
北京国能普华环保工程技术有限公司 +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] For this reason, the technical problem to be solved by the present invention is that in the coal chemical industry wastewater treatment process of the prior art, activated carbon is added into the activated sludge aeration tank, and the pores of the activated carbon cannot be fully utilized due to the influence of the sludge, so that the activated carbon Therefore, an efficient coal chemical wastewater treatment process that can make full use of the pores of activated carbon and give full play to the adsorption capacity of activated carbon is proposed.

Method used

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  • Process for treating coal chemical waste water
  • Process for treating coal chemical waste water
  • Process for treating coal chemical waste water

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Embodiment 1

[0029] figure 1 , figure 2 A specific embodiment of the coal chemical industry wastewater treatment process described in the present invention is given. The coal chemical industry wastewater is stored in a wastewater regulating pool, and the regulating pool can make the sewage water quality in the pool uniform, and can also adjust the water output at the same time . The coal chemical wastewater treatment process adopts a wastewater treatment method that combines active material adsorption and biochemical treatment, including the following steps:

[0030] ① Pass the coal chemical industry wastewater in the adjustment pool into the adsorption pool, in which active coke adsorption materials are continuously added, and the coal chemical industry wastewater is adsorbed through the activated coke, and the coal chemical industry wastewater flows through the activated coke When macromolecular organic matter and refractory organic matter are adsorbed and removed, the ratio of the qu...

Embodiment 2

[0036] As an alternative embodiment of Example 1, in the clarification tank, a sedimentation tank or a mechanically accelerated clarification tank or a thickening tank can be used. The process of the coal chemical industry wastewater treatment process described in this embodiment is as follows: image 3 As shown, the specific steps are as follows:

[0037] ① Pass the coal chemical industry wastewater in the adjustment pool into the adsorption pool, in which active coke adsorption materials are continuously added, and the coal chemical industry wastewater is adsorbed through the activated coke, and the coal chemical industry wastewater flows through the activated coke At this time, macromolecular organic matter and refractory organic matter are adsorbed and removed. The ratio of the mass of the waste water to the mass of the active adsorption material added is 10:1-500:1, and 10:1 is selected in this embodiment.

[0038] ② The waste water absorbed by the activated coke is sep...

Embodiment 3

[0043] As an embodiment that can be changed in embodiment 1, the process of the coal chemical industry wastewater treatment process described in this embodiment is as follows Figure 4 As shown, the specific steps are as follows:

[0044] ① Pass the coal chemical industry wastewater in the adjustment pool into the adsorption pool, in which active coke adsorption materials are continuously added, and the coal chemical industry wastewater is adsorbed through the activated coke, and the coal chemical industry wastewater flows through the activated coke At this time, macromolecular organic matter and refractory organic matter are adsorbed and removed. , the ratio of the quality of the waste water to the mass of the active adsorption material added is 10:1-500:1, and 500:1 is selected in this embodiment.

[0045] ② The waste water absorbed by the active coke is separated from the active coke and water through the clarifier. In the clarifier, a sedimentation tank or a mechanically ...

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Abstract

The invention relates to a process for treating coal chemical waste water, wherein a method combining active material adsorption and biochemical treatment is adopted. The method comprises the following steps of: firstly, introducing coal chemical waste water in a waste water regulating reservoir; secondly, introducing the waste water subjected to adsorption treatment by an adsorption tank into a clarification reservoir for sedimentation; then introducing the waste water subjected to the treatment of the clarification reservoir into a biochemical unit for biochemical treatment; and finally, introducing the waste water subjected to the biochemical treatment into a sedimentation reservoir for sedimentation treatment. In the technical scheme, macromolecular organic pollutants are removed through adsorption, therefore, the requirement of the subsequent biochemical treatment is met, and the problems of insufficient utilization of pores of activated carbon and incomplete exertion of the adsorbability of the activated carbon due to the influence of sludge when the activated carbon is added into an activated sludge aeration tank in the prior art are solved; and the process for treating coal chemical waste water has high efficiency and can sufficiently utilize the pores of the activated carbon and ensure the full exertion of the adsorbability of the activated carbon.

Description

technical field [0001] The invention relates to a wastewater treatment process, in particular to a coal chemical wastewater treatment process. Background technique [0002] Coal chemical industry refers to the industry that uses coal as raw material, converts coal into gas, liquid and solid products or semi-products through chemical processing, and then further processes them into chemical and energy products. During this process, a large amount of wastewater is discharged. At present, the commonly used coal chemical wastewater treatment process is divided into primary treatment, secondary treatment and advanced treatment. Primary treatment is pretreatment, including oil separation, air flotation, precipitation, hydrolysis and acidification, etc.; secondary treatment is mainly biochemical treatment, and activated sludge method is usually used to treat coal chemical wastewater; common methods of advanced treatment are coagulation sedimentation, advanced Oxidation, subsequent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F3/30C02F1/28
Inventor 张毅刘振强朱永平滕济林苗文华李若征程建龙曹效鑫何鹏
Owner 北京国能普华环保工程技术有限公司
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