Sludge recycling method and biological water purification particles

A biological water purification and sludge technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, microorganisms, etc. The mud has not been properly treated and other problems, to achieve good microbial load effect, high-efficiency treatment, and good adsorption effect

Inactive Publication Date: 2022-02-11
XIAMEN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to save costs, some sewage plants leave the sludge treatment facilities empty and discharge the sludge at will
More than 80% of the sludge produced by my country's sewage treatment plants has not been properly treated
[0005] 2. The development of heavy water and light mud and sludge treatment lags behind
The patent uses low-temperature microorganisms with limited application scope, which limits its application and promotion

Method used

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  • Sludge recycling method and biological water purification particles
  • Sludge recycling method and biological water purification particles
  • Sludge recycling method and biological water purification particles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A method for recycling sludge, specifically as follows:

[0043] 1. Using sludge and sewage for strain screening

[0044] (1) Enrichment of strains

[0045] Take a 250ml Erlenmeyer flask, add 90ml of sterilized enrichment medium, then add 10ml of river bottom sludge and sewage to be treated, place in a constant temperature shaking incubator at 180r / min, and incubate at 30°C for 2 days Finally, discard the supernatant, add sterilized enrichment medium to enrich again, repeat the same process and enrich repeatedly 6 times to obtain a high-concentration strain enrichment solution.

[0046] (2) Isolation of strains

[0047] Under sterile conditions, use the 10-fold dilution method to evenly spread the enrichment solution of the strains on the actinomycetes plate medium, LB plate medium and fungal plate medium, seal the plate with sealant, turn the plate upside down, and place into a 30°C constant temperature incubator. Observe the colony morphology on the gradient plate...

Embodiment 2

[0073] A method for recycling sludge, specifically as follows:

[0074] 1. Using sludge and sewage for strain screening

[0075] (1) Enrichment of strains

[0076] Take a 250ml Erlenmeyer flask, add 90ml of sterilized enrichment medium, then add 10ml of river bottom sludge and sewage to be treated, place in a constant temperature shaking incubator at 180r / min, and incubate at 30°C for 2 days Finally, discard the supernatant, add sterilized enrichment medium to enrich again, repeat the same process and enrich repeatedly 6 times to obtain a high-concentration strain enrichment solution.

[0077] (2) Isolation of strains

[0078] Under sterile conditions, use the 10-fold dilution method to evenly spread the enriched solution of the strains on the actinomycetes plate medium, LB plate medium and fungus plate medium, seal the plate with sealant, turn the plate upside down, and place into a 30°C constant temperature incubator. Observe the colony morphology on the gradient plate a...

Embodiment 3

[0104] A method for recycling sludge, specifically as follows:

[0105] 1. Using sludge and sewage for strain screening

[0106] (1) Enrichment of strains

[0107] Take a 250ml Erlenmeyer flask, add 90ml of sterilized enrichment medium, then add 10ml of river bottom sludge and sewage to be treated, place in a constant temperature shaking incubator at 180r / min, and incubate at 30°C for 2 days Finally, discard the supernatant, add sterilized enrichment medium to enrich again, repeat the same process and enrich repeatedly 6 times to obtain a high-concentration strain enrichment solution.

[0108] (2) Isolation of strains

[0109] Under sterile conditions, use the 10-fold dilution method to evenly spread the enriched solution of the strains on the actinomycetes plate medium, LB plate medium and fungus plate medium, seal the plate with sealant, turn the plate upside down, and place into a 30°C constant temperature incubator. Observe the colony morphology on the gradient plate a...

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Abstract

The invention relates to a sludge recycling method and biological water purification particles, and the sludge recycling method comprises the following steps: strain screening; strain separation; strain screening and fermentation; preparation of modified biochar: mixing sludge with magnesium salt and iron salt, conducting heating and stirring, then adding an alkaline reagent to adjust the pH value to 9-10, continuously conducting heating and carrying out a heat preservation reaction, drying the product, crushing the product, conducting sieving with a sieve, performing high-temperature calcination, and conducting cooling to obtain modified charcoal; and preparation of the biological water purification particles from a fermentation suspension and the modified biochar by an embedding method. The invention provides a new sludge recovery thought, specific strains capable of efficiently purifying water can be rapidly screened out by utilizing sludge and sewage, biomass loading is carried out by utilizing the modified charcoal, and the obtained biological water purification particles have an excellent water purification effect.

Description

technical field [0001] The invention relates to sludge recovery and treatment technology, in particular to a sludge recovery method and biological water purification particles. Background technique [0002] Sludge has complex components, including pathogenic microorganisms, parasite eggs, toxic and harmful heavy metals and a large amount of refractory substances. If it is not handled properly, it will easily cause secondary pollution to the environment. Currently, sludge recycling has the following problems: [0003] 1. The sludge treatment rate is extremely low [0004] Early sewage plants even ignored the sludge treatment unit and only carried out sewage treatment, but the sludge was dumped randomly in lakes, ravines, and fertile fields. In order to save costs, some sewage plants leave the sludge treatment facilities empty and discharge the sludge at will. More than 80% of the sludge produced by my country's sewage treatment plants has not been properly treated. [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/20C12N1/02C12N11/14C12N11/10C12N11/084C02F3/34C12R1/10C12R1/125C12R1/07C12R1/01C12R1/085C12R1/11
CPCC12N1/20C12N1/02C12N11/14C12N11/10C12N11/084C02F3/34
Inventor 阳艾利柳炳辉高攀峰
Owner XIAMEN UNIV OF TECH
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