CN-119409342-B - Water treatment preparation and preparation method thereof

CN119409342BCN 119409342 BCN119409342 BCN 119409342BCN-119409342-B

Abstract

The invention provides a water treatment preparation and a preparation method thereof, and relates to the field of sewage treatment. The preparation method comprises the steps of uniformly mixing a liquid culture medium with nano active carbon, adding a gelatin aqueous solution, carrying out ultrasonic vibration treatment, drying to obtain a porous carrier, uniformly mixing a microbial agent with the liquid culture medium, adding mesoporous calcium carbonate and the porous carrier, uniformly mixing to obtain a suspension, mixing polyvinyl alcohol, agar and water, heating to 80-90 ℃ and uniformly stirring, cooling to 40-50 ℃, adding the suspension, uniformly stirring, cooling to 30-35 ℃, adding alum powder, uniformly stirring, cooling, crushing to obtain particles, uniformly mixing chitosan with an acetic acid solution, adding an alcohol solution of glutaraldehyde and beta-cyclodextrin, stirring for 30-40min at 40-50 ℃, coating on the surface of the particles, and drying. The water treatment preparation can slowly provide nutrient substances for the microbial agent through multi-layer coating, so that the effective time of the preparation for treating sewage is prolonged.

Inventors

YANG BIN
QIAN JUN
ZHOU XIAOLU

Assignees

重明鸟健康产业(江苏)股份有限公司

Dates

Publication Date: 20260512
Application Date: 20241223

Claims (2)

1. A method of preparing a water treatment formulation comprising the steps of: s1, uniformly mixing a liquid culture medium with nano active carbon, adding a gelatin aqueous solution, carrying out ultrasonic vibration treatment, and drying to obtain a porous carrier; S2, uniformly mixing the microbial agent and the liquid culture medium, and then adding mesoporous calcium carbonate and the porous carrier in the step S1, and uniformly mixing to obtain a suspension; S3, mixing polyvinyl alcohol, agar and water, heating to 80-90 ℃ and stirring uniformly, cooling to 40-50 ℃, adding the suspension in the step S2, stirring uniformly, cooling to 30-35 ℃, adding alum powder, stirring uniformly, cooling to agar solidification, and crushing to obtain particles; s4, uniformly mixing chitosan and acetic acid solution, adding glutaraldehyde alcohol solution and beta-cyclodextrin, stirring for 30-40min at 40-50 ℃, coating on the surface of the particles in the step S3, and drying to obtain the water treatment preparation; The particle size of the mesoporous calcium carbonate is 0.5-1mm, and the average pore diameter is 100-200um; the power of the ultrasonic vibration is 50-80KHz, and the treatment time is 10-30min; The mass fraction of the gelatin aqueous solution is 5-10%; The microbial agent comprises one or more of ammonia nitrogen degrading bacteria, COD degrading bacteria and dephosphorizing bacteria; The mass ratio of the polyvinyl alcohol to the agar to the water is (5-10): 1-5): 10-20; the mass ratio of the alum to the microbial agent is 1 (1-2); in the step S4, the method further comprises the steps of adding active carbon powder after uniformly stirring at 40-50 ℃ and uniformly stirring; The mass ratio of the active carbon powder to the particles is 0.1-0.5:1.
2. A water treatment preparation, characterized by being produced by the production method according to claim 1.

Description

Water treatment preparation and preparation method thereof Technical Field The invention relates to the field of sewage treatment, in particular to a water treatment preparation and a preparation method thereof. Background The microorganism is the most energy-saving and effective treatment mode at present, which improves the water quality through the metabolic activity of the microorganism, can degrade organic matters, convert harmful substances, improve the dissolved oxygen of water body and the like, thereby achieving the aim of purifying the water quality. The microbial sewage treatment has the advantages that the microbial sewage treatment has no toxic or side effect, and the microbial preparation is derived from the nature and has no pathogenic harm to human bodies and breeding objects. No residue, and no harmful substances are left in the water body after the use. Unlike chemical drugs, microbial agents do not cause resistance to pathogens. The environment-friendly water ecological system can maintain the balance of the water ecological system and reduce the pollution to the environment. The immobilized microorganism technology is a microorganism treatment technology, can be used for treating sewage, and can efficiently remove pollutants such as organic matters, nitrogen, phosphorus and the like in the sewage. The method has the advantages that enzyme, microbial cells, animal and plant cells, organelles and the like are limited or positioned in a specific space area by means of physical adsorption, chemical reaction fixation, porous carrier embedding, self-crosslinking fixation and the like, the activity of the enzyme, the microbial cells, the animal and plant cells, organelles and the like is maintained, sewage can be continuously treated, and compared with the method for directly adding microbial agents, the treatment efficiency is higher. At present, most of immobilized microorganism technologies utilize polyvinyl alcohol, sodium alginate and the like to embed and fix microbial agents, the strength of the polyvinyl alcohol and sodium alginate after embedding is insufficient, and the embedded body has high breaking rate along with the growth of microorganisms, so that the internal microorganisms lose the immobilization effect, and the efficiency of sewage treatment is reduced. Disclosure of Invention The invention aims to provide a water treatment preparation which can slowly provide nutrients for microbial agents through multi-layer coating, prolong the existence time of microorganisms in the preparation, increase the number of the microorganisms, continuously degrade harmful substances in sewage through the metabolic activity of the microorganisms and prolong the effective time of the preparation for treating the sewage. The invention also aims to provide a preparation method of the water treatment preparation, which is characterized in that a culture medium is adsorbed in the holes of mesoporous calcium carbonate and then coated for multiple times, so that the sewage treatment time of the preparation can be effectively prolonged. The invention solves the technical problems by adopting the following technical scheme. In one aspect, the embodiment of the invention provides a preparation method of a water treatment preparation, which comprises the following steps: s1, uniformly mixing a liquid culture medium with nano active carbon, adding a gelatin aqueous solution, carrying out ultrasonic vibration treatment, and drying to obtain a porous carrier; S2, uniformly mixing the microbial agent and the liquid culture medium, and then adding mesoporous calcium carbonate and the porous carrier in the step S1, and uniformly mixing to obtain a suspension; S3, mixing polyvinyl alcohol, agar and water, heating to 80-90 ℃ and stirring uniformly, cooling to 40-50 ℃, adding the suspension in the step S2, stirring uniformly, cooling to 30-35 ℃, adding alum powder, stirring uniformly, cooling to agar solidification, and crushing to obtain particles; S4, uniformly mixing chitosan and acetic acid solution, adding glutaraldehyde alcohol solution and beta-cyclodextrin, stirring for 30-40min at 40-50 ℃, coating on the surface of the particles in the step S3, and drying to obtain the water treatment preparation. In some embodiments of the invention, the mesoporous calcium carbonate has a particle size of 0.5-1mm, an average pore size of 100-200um, and a particle size of 80-100nm. In some embodiments of the invention, the power of the ultrasonic vibration is 50-80KHz, and the treatment time is 10-30min. Through high-frequency ultrasonic vibration, the active carbon and the liquid culture medium molecules obtain certain energy, so that the liquid culture medium molecules can enter the pores of the active carbon conveniently and are loaded in the pores. Under the action of ultrasonic vibration, the load effect is better. In some embodiments of the invention, the mass fraction of the gelatin aqueous solution is 5-10%, after