CN105836821A - Sewage treatment agent special for chemical fiber industry and preparation method thereof - Google Patents

Abstract

The invention discloses a special sewage treatment agent for chemical fiber industry and a preparation method thereof, wherein the special sewage treatment agent for chemical fiber industry comprises the following components in parts by weight: 60-80 parts of modified diatomite, 20-30 parts of activated sludge, 20-30 parts of bamboo charcoal, 15-20 parts of gypsum powder and 5-10 parts of waste leaves. The invention can make the physical and chemical indexes of the sewage treatment agent special for the chemical fiber industry reach the GB18918-2002 standard, and effectively reduces the contents of COD, BOD, SS and metal ions; the treatment process is simple, the dosage is small, the treatment effect is good, the performance is stable, the effluent quality is good, the cost of water treatment can be effectively reduced, and the method has good economic benefits and wide social benefits.

Description

A special sewage treatment agent for chemical fiber industry and its preparation method

technical field

The invention relates to the technical field of a sewage treatment agent, in particular to a special sewage treatment agent for the chemical fiber industry and a preparation method thereof.

Background technique

Chemical fiber wastewater mainly contains organic pollutants such as acrylonitrile, acetonitrile, acrolein, and sodium thiocyanate, which are highly toxic, high in concentration, and difficult to degrade. At present, there are various methods such as physical, chemical, and biological to deal with the pollution of sewage treatment agents for the chemical fiber industry, but most of the physical methods have problems of poor treatment effect and unstable treatment rate; the cost of biological methods is too high to be popularized and used More chemical methods are used to treat sewage, but the existing sewage treatment agents have secondary pollution problems in their reagent components, which will also have a certain impact on the environment.

Contents of the invention

The object of the present invention is to provide a special sewage treatment agent for the chemical fiber industry and a preparation method thereof, so as to solve the problems raised in the above-mentioned background technology.

To achieve the above object, the present invention provides the following technical solutions:

A special sewage treatment agent for the chemical fiber industry, the components in parts by weight are: 60-80 parts of modified diatomite, 20-30 parts of activated sludge, 20-30 parts of bamboo charcoal, 15-20 parts of gypsum powder, and waste leaves 5-10 parts, the preparation method of described modified diatomite is:

(1) Add diatomite raw soil into the rotary kiln, burn it at 560°C for 30-60 minutes, and grind it into 40-60 mesh diatomite fine powder after leaving the kiln;

(2) Take the diatomite fine powder gained in step (1) and carry out vacuum drying treatment for 12 hours, then place it in sodium carbonate and soak for 2-4 hours, so that the diatomite fine powder is fully soaked, and carry out low-temperature drying after filtering;

(3) Get the diatomite fine powder after the low-temperature drying obtained in step (2) and join in the polymerization kettle, then add melamine, lauryl peroxide, methyl alcohol, methyl methacrylate and citric acid ester successively, the reaction temperature The temperature is 74-76°C, the reaction time is 30-35min, and the modified diatomite is obtained.

As a further solution of the present invention: in the preparation method step (1) of the modified diatomite, it is fired for 45min at 560°C, and is pulverized into 50 mesh diatomite fine powder after leaving the kiln.

As a further solution of the present invention: in the step (2) of the preparation method of the modified diatomite, it is then soaked in sodium carbonate for 3 hours.

As a further solution of the present invention: in the step (3) of the preparation method of the modified diatomite, the reaction temperature is 75° C., and the reaction time is 33 minutes.

A kind of preparation method of sewage treatment agent special for chemical fiber industry, concrete steps are:

(1) First, add water to the modified diatomaceous earth and activated sludge to obtain a mixed slurry, and then perform ultrasonic treatment. The temperature of the ultrasonic treatment is 145-148 ° C, and the time is 45-55 minutes to obtain a mixture;

(2) Next, vortex mix and stir the mixture with activated sludge, bamboo charcoal, gypsum powder, and discarded leaves at a stirring speed of 1200-1800r/min, then microencapsulate and place at a temperature of 2°C-6°C Dry at low temperature to obtain a special sewage treatment agent for the chemical fiber industry.

As a further solution of the present invention: the temperature of the ultrasonic treatment in step (1) is 147° C., and the time is 50 min.

As a further solution of the present invention: the stirring speed in step (2) is 1500r/min.

Compared with prior art, the beneficial effect of the present invention is:

The invention can make the physical and chemical indicators of the special sewage treatment agent for the chemical fiber industry meet the GB18918-2002 standard, and effectively reduce the content of COD, BOD, SS and metal ions; the treatment process is simple, the dosage is small, the treatment effect is good, the performance is stable, and the water is discharged Good water quality can effectively reduce the cost of water treatment, and has good economic benefits and extensive social benefits.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

Example 1

A special sewage treatment agent for chemical fiber industry, the components according to parts by weight are: 60 parts of modified diatomite, 20 parts of activated sludge, 20 parts of bamboo charcoal, 15 parts of gypsum powder, 5 parts of discarded leaves, the modified silica The preparation method of algae earth is:

(1) Add diatomite raw soil into a rotary kiln, burn it at 560°C for 30 minutes, and pulverize it into 40-mesh diatomite fine powder after leaving the kiln;

(2) Take the diatomite fine powder gained in step (1) and carry out vacuum drying treatment for 12 hours, then place it in sodium carbonate and soak for 2 hours, so that the diatomite fine powder is fully soaked, and carry out low-temperature drying after filtering;

(3) Get the diatomite fine powder after the low-temperature drying obtained in step (2) and join in the polymerization kettle, then add melamine, lauryl peroxide, methyl alcohol, methyl methacrylate and citric acid ester successively, the reaction temperature The temperature is 74°C, and the reaction time is 30 minutes to obtain modified diatomite.

A kind of preparation method of sewage treatment agent special for chemical fiber industry, concrete steps are:

(1) First, add water to the modified diatomite and activated sludge to obtain a mixed slurry, and then perform ultrasonic treatment, the temperature of the ultrasonic treatment is 145 ° C, and the time is 45 minutes to obtain a mixture;

(2) Next, vortex mix and stir the mixture with activated sludge, bamboo charcoal, gypsum powder, and discarded leaves at a stirring speed of 1200r/min, then perform microencapsulation treatment and dry at a low temperature at 2°C to obtain Special sewage treatment agent for chemical fiber industry.

Example 2

A special sewage treatment agent for the chemical fiber industry, the components according to parts by weight are: 70 parts of modified diatomite, 25 parts of activated sludge, 25 parts of bamboo charcoal, 18 parts of gypsum powder, 8 parts of discarded leaves, the modified silica The preparation method of algae earth is:

(1) Add diatomite raw soil into a rotary kiln, burn it at 560°C for 45 minutes, and pulverize it into 50-mesh diatomite fine powder after leaving the kiln;

(2) Take the diatomite fine powder gained in step (1) and carry out vacuum drying treatment for 12 hours, then place it in sodium carbonate and soak for 3 hours, so that the diatomite fine powder is fully soaked, and carry out low-temperature drying after filtering;

(3) Get the diatomite fine powder after the low-temperature drying obtained in step (2) and join in the polymerization kettle, then add melamine, lauryl peroxide, methyl alcohol, methyl methacrylate and citric acid ester successively, the reaction temperature The temperature is 75°C, and the reaction time is 33 minutes to obtain modified diatomite.

A kind of preparation method of sewage treatment agent special for chemical fiber industry, concrete steps are:

(1) First, add water to the modified diatomite and activated sludge to obtain a mixed slurry, and then perform ultrasonic treatment, the temperature of the ultrasonic treatment is 147 ° C, and the time is 50 minutes to obtain a mixture;

(2) Next, vortex mix and stir the mixture with activated sludge, bamboo charcoal, gypsum powder, and discarded leaves at a stirring speed of 1500r/min, then perform microencapsulation treatment and dry at a low temperature at 4°C to obtain Special sewage treatment agent for chemical fiber industry.

Example 3

A special sewage treatment agent for the chemical fiber industry, the components according to parts by weight are: 80 parts of modified diatomite, 30 parts of activated sludge, 30 parts of bamboo charcoal, 20 parts of gypsum powder, 10 parts of discarded leaves, the modified silica The preparation method of algae earth is:

(1) Add diatomite raw soil into the rotary kiln, burn it at 560°C for 60 minutes, and pulverize it into 60-mesh diatomite fine powder after leaving the kiln;

(2) Take the diatomite fine powder gained in step (1) and carry out vacuum drying treatment for 12 hours, then place it in sodium carbonate and soak for 4 hours, so that the diatomite fine powder is fully soaked, and carry out low-temperature drying after filtering;

(3) Get the diatomite fine powder after the low-temperature drying obtained in step (2) and join in the polymerization kettle, then add melamine, lauryl peroxide, methyl alcohol, methyl methacrylate and citric acid ester successively, the reaction temperature The temperature is 76°C, and the reaction time is 35 minutes to obtain modified diatomite.

A kind of preparation method of sewage treatment agent special for chemical fiber industry, concrete steps are:

(1) First, add water to the modified diatomite and activated sludge to obtain a mixed slurry, and then perform ultrasonic treatment, the temperature of the ultrasonic treatment is 148 ° C, and the time is 55 minutes to obtain a mixture;

(2) Next, vortex mix and stir the mixture with activated sludge, bamboo charcoal, gypsum powder, and discarded leaves at a stirring speed of 1800r/min, then perform microencapsulation treatment and dry at a low temperature of 6°C to obtain Special sewage treatment agent for chemical fiber industry.

Comparative example 1

A special sewage treatment agent for the chemical fiber industry, the components according to parts by weight are: 70 parts of modified diatomite, 25 parts of activated sludge, and the preparation method of the modified diatomite is as follows:

(1) Add diatomite raw soil into the rotary kiln, burn it at 560°C for 45 minutes, and grind it into 50 mesh diatomite fine powder after leaving the kiln;

(2) Take the diatomite fine powder gained in step (1) and carry out vacuum drying treatment for 12 hours, then place it in sodium carbonate and soak for 3 hours, so that the diatomite fine powder is fully soaked, and carry out low-temperature drying after filtering;

(3) Get the diatomite fine powder after the low-temperature drying obtained in step (2) and join in the polymerization kettle, then add melamine, lauryl peroxide, methyl alcohol, methyl methacrylate and citric acid ester successively, the reaction temperature The temperature is 75°C, and the reaction time is 33 minutes to obtain modified diatomite.

A kind of preparation method of sewage treatment agent special for chemical fiber industry, concrete steps are:

Water is added to the modified diatomite and activated sludge to obtain a mixed slurry, which is then dried at a low temperature of 4° C. to obtain a sewage treatment agent for the chemical fiber industry.

Comparative example 2

The special sewage treatment agent for the chemical fiber industry comprises the following components by weight: 70 parts of diatomite and 25 parts of activated sludge.

A kind of preparation method of sewage treatment agent special for chemical fiber industry, concrete steps are:

(1) First, add water to the modified diatomite and activated sludge to obtain a mixed slurry, and then perform ultrasonic treatment, the temperature of the ultrasonic treatment is 147 ° C, and the time is 50 minutes to obtain a mixture;

(2) Next, the mixture was dried at a low temperature of 4° C. to obtain a sewage treatment agent for the chemical fiber industry.

Comparative example 3

A special sewage treatment agent for the chemical fiber industry, the components according to parts by weight are: 70 parts of modified diatomite, 25 parts of activated sludge, 25 parts of bamboo charcoal, 18 parts of gypsum powder, 8 parts of discarded leaves, the modified silica The preparation method of algae earth is:

(1) Add diatomite raw soil into a rotary kiln, burn it at 560°C for 45 minutes, and pulverize it into 50-mesh diatomite fine powder after leaving the kiln;

(2) Get the diatomite fine powder gained in step (1) and join in the polymerization kettle, then add melamine, lauryl peroxide, methanol, methyl methacrylate and citric acid ester successively, the reaction temperature is 75 ℃, The reaction time is 33 minutes, and the modified diatomite is obtained.

A kind of preparation method of sewage treatment agent special for chemical fiber industry, concrete steps are:

(1) First, add water to the modified diatomite and activated sludge to obtain a mixed slurry, and then perform ultrasonic treatment, the temperature of the ultrasonic treatment is 147 ° C, and the time is 50 minutes to obtain a mixture;

(2) Next, vortex mix and stir the mixture with activated sludge, bamboo charcoal, gypsum powder, and discarded leaves at a stirring speed of 1500r/min, and then place it at 4°C for low-temperature drying to obtain sewage treatment for the chemical fiber industry agent.

Detection experiment

Weigh respectively 1 kg of Example 1, Example 2, and Example 3 Comparative Sample 1, Comparative Sample 2, and Comparative Sample 3, and add them to 20 kg of sewage treatment agent for the chemical fiber industry. The temperature is controlled at 25° C. and stirred continuously for 1 hour. The effects of the special sewage treatment agent for chemical fiber industry of the present invention were tested with COD, BOD, SS, and metal ion content as evaluation criteria, and the test results are shown in Table 1.

This shows that the chemical fiber industry-specific sewage treatment agent of the present invention has better significant treatment effect compared with the control group, and the present invention can make the physical and chemical indicators of the chemical fiber industry-specific sewage treatment agent reach the GB18918-2002 standard (can reach Grade B standard or above), and effectively reduce the content of COD, BOD, SS and metal ions; the treatment process is simple, the dosage is small, the treatment effect is good, the performance is stable, the effluent water quality is good, and the cost of water treatment can be effectively reduced. It has good economic benefits and extensive social benefits.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Accordingly, the embodiments should be regarded in all points of view as exemplary and not restrictive, the scope of the invention being defined by the appended claims rather than the foregoing description, and it is therefore intended that the scope of the invention be defined by the appended claims rather than by the foregoing description. All changes within the meaning and range of equivalents of the elements are embraced in the present invention.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (7)

1. A special sewage treatment agent for chemical fiber industry, the components according to parts by weight are: 60-80 parts of modified diatomite, 20-30 parts of activated sludge, 20-30 parts of bamboo charcoal, 15-20 parts of gypsum powder, 5-10 parts of discarded leaves, it is characterized in that, the preparation method of described modified diatomite is: (1) Add diatomite raw soil into the rotary kiln, fire at 560°C for 30-60 minutes, and grind it into 40-60 mesh diatomite fine powder after leaving the kiln; (2) Vacuum-dry the fine diatomite powder obtained in step (1) for 12 hours, then soak in sodium carbonate for 2-4 hours, so that the fine diatomite powder is fully soaked, and then dry at low temperature after filtration; (3) Take the diatomite fine powder obtained in step (2) after low-temperature drying and add it to the polymerization kettle, and then add melamine, lauryl peroxide, methanol, methyl methacrylate and citrate in sequence, and the reaction temperature The temperature is 74-76°C, the reaction time is 30-35min, and the modified diatomite is obtained. 2. The special sewage treatment agent for the chemical fiber industry according to claim 1, characterized in that, in the step (1) of the preparation method of the modified diatomite, it is fired at 560°C for 45 minutes and pulverized after leaving the kiln into 50 mesh diatomite fine powder. 3. The special sewage treatment agent for the chemical fiber industry according to claim 1, characterized in that, in the step (2) of the preparation method of the modified diatomite, the modified diatomite is then soaked in sodium carbonate for 3 hours. 4. The special sewage treatment agent for chemical fiber industry according to claim 1, characterized in that, in the step (3) of the preparation method of the modified diatomite, the reaction temperature is 75° C., and the reaction time is 33 minutes. 5. a preparation method of the special sewage treatment agent for chemical fiber industry as any one of claims 1-4, is characterized in that, concrete steps are: (1) First, add water to the modified diatomite and activated sludge to obtain a mixed slurry, and then perform ultrasonic treatment at a temperature of 145-148°C for 45-55 minutes to obtain a mixture; (2) Next, vortex mix and stir the mixture with activated sludge, bamboo charcoal, gypsum powder, and discarded leaves at a stirring speed of 1200-1800r/min, then perform microencapsulation treatment and place at a temperature of 2°C-6°C Dry at low temperature to obtain a special sewage treatment agent for the chemical fiber industry. 6 . The method for preparing a special sewage treatment agent for the chemical fiber industry according to claim 5 , wherein the temperature of the ultrasonic treatment in step (1) is 147° C. and the time is 50 minutes. 7. The method for preparing the special sewage treatment agent for chemical fiber industry according to claim 5, characterized in that the stirring speed in step (2) is 1500r/min.