Coal chemical industry wastewater treatment fundamental technology

Abstract

The invention discloses a coal chemical industry wastewater treatment fundamental technology. The coal chemical industry wastewater treatment fundamental technology comprises the steps of a first-grade wastewater treatment core process, middle assisting, a second-grade wastewater treatment core process and post assisting, controlling is conducted on the pH value based on all processing point water bodies in an overall process, and all parameters are set according to requirements of water inflow and outflow indexes. According to the coal chemical industry wastewater treatment fundamental technology, the advantages of ion separation medicament in practical application for an applicant can be fully guaranteed, and the representative advantages that quantity of reagent (10-300 g per ton of water) is less, dilution is not needed for direct solid state dosage, buffering is not needed for wastewater real-time treatment (the reaction speed ranges from 3 min to 15 min), water content removal rate reaches up to over 80 percent, all national wastewater treatment emission standards can be accorded to and met, and treated water is colorless, odorless and free of secondary harmful chemicals, and sludge produced through flocculation is low in moisture content (smaller than 35 percent), free of odor and adhesion and the like.

Description

technical field

[0001] The invention relates to the field of sewage treatment processes and methods, in particular to a basic process and method for sewage treatment in various coal chemical industries. Background technique

[0002] In recent years, with the development of population and economy, environmental problems have become increasingly serious, and our government and people have attached great importance to them. Among them, the problem of water pollution has become a more important problem among many environmental problems. Water pollution causes soil pollution, which in turn causes air pollution and destroys the overall ecological environment. The main sources of water pollution are domestic sewage and industrial sewage, among which industrial sewage bears the brunt, and coal chemical wastewater is one of the key industrial wastewater with coal as the basic raw material, which is harmful to the human body and the environment.

[0003] The so-called coal chemical i...

Examples

Embodiment 1

[0076] The treatment of embodiment 1-certain coal chemical industry sewage:

[0077] The raw water and post-treatment requirements of the water body are:

[0078]

[0079] Based on the "basic process for coal chemical industry wastewater treatment" of the present invention, the process flow diagram for this embodiment is as follows figure 1 As shown, the process includes ① primary sewage treatment core process, ② middle auxiliary process, ③ secondary sewage treatment core process, ④ post auxiliary and other sub-processes. The detailed sub-process and each process point process, parameters, control and operation method steps are described as follows:

[0080] ①The core process and method sub-process of primary sewage treatment The process flow chart is as figure 2 shown, including adjust, reaction, Flocculation and Four sub-processes such as filtration and sedimentation. The sub-process and each process point process, parameters, control and operation method st...

Embodiment 2

[0121] Process step of the present invention can be in image 3 and Figure 4 It is carried out in the mobile integrated complete set of equipment involved. The specific processing steps of the mobile integrated complete set of equipment are as follows:

[0122] (1) In order to cooperate with the ion separation agent to achieve a good chemical reaction effect, first put the sewage into the pH adjustment tank, and add a pH regulator suitable for different sewage at the same time, usually for acidification;

[0123] (2) After the sewage is adjusted to the pH value by the pH adjustment tank, it enters the adjustment tank 2, and the pH value of the acidified water body is adjusted to 7.0-9.0. In order to mix evenly, it can be stirred with an agitator;

[0124] (3) In order to further fully mix and react, and achieve the purpose of breaking the molecular chain of sewage or releasing corresponding substances, the sewage and corresponding chemicals after passing through the adjustm...

technical field

[0001] The invention relates to the field of sewage treatment processes and methods, in particular to a basic process and method for sewage treatment in various coal chemical industries. Background technique

[0002] In recent years, with the development of population and economy, environmental problems have become increasingly serious, and our government and people have attached great importance to them. Among them, the problem of water pollution has become a more important problem among many environmental problems. Water pollution causes soil pollution, which in turn causes air pollution and destroys the overall ecological environment. The main sources of water pollution are domestic sewage and industrial sewage, among which industrial sewage bears the brunt, and coal chemical wastewater is one of the key industrial wastewater with coal as the basic raw material, which is harmful to the human body and the environment.

[0003] The so-called coal chemical i...

Examples

Embodiment 1

[0076] The treatment of embodiment 1-certain coal chemical industry sewage:

[0077] The raw water and post-treatment requirements of the water body are:

[0078]

[0079] Based on the "basic process for coal chemical industry wastewater treatment" of the present invention, the process flow diagram for this embodiment is as follows figure 1 As shown, the process includes ① primary sewage treatment core process, ② middle auxiliary process, ③ secondary sewage treatment core process, ④ post auxiliary and other sub-processes. The detailed sub-process and each process point process, parameters, control and operation method steps are described as follows:

[0080] ①The core process and method sub-process of primary sewage treatment The process flow chart is as figure 2 shown, including adjust, reaction, Flocculation and Four sub-processes such as filtration and sedimentation. The sub-process and each process point process, parameters, control and operation method st...

Embodiment 2

[0121] Process step of the present invention can be in image 3 and Figure 4 It is carried out in the mobile integrated complete set of equipment involved. The specific processing steps of the mobile integrated complete set of equipment are as follows:

[0122] (1) In order to cooperate with the ion separation agent to achieve a good chemical reaction effect, first put the sewage into the pH adjustment tank, and add a pH regulator suitable for different sewage at the same time, usually for acidification;

[0123] (2) After the sewage is adjusted to the pH value by the pH adjustment tank, it enters the adjustment tank 2, and the pH value of the acidified water body is adjusted to 7.0-9.0. In order to mix evenly, it can be stirred with an agitator;

[0124] (3) In order to further fully mix and react, and achieve the purpose of breaking the molecular chain of sewage or releasing corresponding substances, the sewage and corresponding chemicals after passing through the adjustm...

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