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Composite microbial preparation and its application in sewage treatment

A technology of composite microorganisms and sewage treatment methods, applied in the field of microbial preparations, to achieve the effect of deodorizing sewage transparency, increasing sewage transparency, high metabolic substrate binding ability and catalytic activity

Active Publication Date: 2022-05-24
HANGZHOU NAXI ECOLOGICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sewage generated by the above methods needs to be treated before it can be discharged.

Method used

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  • Composite microbial preparation and its application in sewage treatment
  • Composite microbial preparation and its application in sewage treatment
  • Composite microbial preparation and its application in sewage treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0083] 1. Fiber iron (III) complex (F-Fe), prepared by the following method:

[0084] Add fiber and trisodium citrate to 2mol / L FeCl 3 In the aqueous solution, the coordination reaction was carried out at 65° C. and 200 rpm stirring speed for 1.5 h, washed with distilled water for 4 times, and dried to obtain the fibrous iron (III) complex. of which fiber, trisodium citrate and FeCl 3 The dosage ratio of the aqueous solution is 1 g: 0.5 g: 20 mL.

[0085] 2. Citric acid modified fiber iron (III) complex (CAF-Fe), prepared by the following method:

[0086] 1) Add the fiber and sodium dihydrogen phosphate into a 2mol / L citric acid aqueous solution, carry out a coordination reaction at 70°C and a stirring speed of 200rpm for 2h, wash with distilled water 4 times, and dry to obtain an esterified modified fiber; fiber; , the dosage ratio of sodium dihydrogen phosphate and citric acid aqueous solution is 1g:0.12:20mL;

[0087] 2) Add the esterified fiber and trisodium citrate to...

Embodiment 2

[0117] 1. Bacteria

[0118] Paracoccus denitrificans, ATCC 13543; Bacillus amyloliquefaciens, ATCC 23843; Bacillus coagulans, ATCC 15949; Bacillus halotolerant, ATCC 05376; Pseudomonas stutzeri, ATCC 83626; Alkali bacteria, ATCC 52498; Achromobacter xyloseoxidizing, ATCC 15327; Vibrio fibrous, ATCC 13127;

[0119] Those skilled in the art can select appropriate medium and expansion culture method according to common sense, so that the above-mentioned number of viable bacteria can reach 3-5×10 8 pcs / mL.

[0120] 2. A composite microbial preparation comprising:

[0121] Microorganisms, in parts by weight, including 5.0 parts of Bacillus amyloliquefaciens, 2.5 parts of Bacillus coagulans, 1.0 parts of Halobacterium, 3.2 parts of Pseudomonas nitrogenogeni, 4.0 parts of Pseudomonas stutzeri, 2.5 parts of Candida bacteria, 1.6 parts of Alcaligenes faecalis, 0.8 parts of Achromobacter xylose oxidizing, 2.0 parts of Vibrio fibrous, and 1.2 parts of Phosphorus spp.;

[0122] Example ...

Embodiment 3

[0125] Composite microbial preparation, which comprises

[0126] Microorganism, same as Example 2;

[0127] Example 1 Citric acid modified fiber iron (III) complex (CAF-Fe).

[0128] The mass ratio of microorganisms and citric acid-modified fibrous iron(Ⅲ) complexes was 1:1.

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Abstract

The invention discloses a composite microbial preparation and its use in sewage treatment, belonging to the technical field of microbial preparations. The composite microbial preparation comprises: at least one kind of microorganism, which contains at least one kind of nitrifying bacteria; and at least one kind of fiber iron complex. The aforementioned fiber iron complex is a fiber iron (III) complex. The composite microbial preparation of the present invention can not only deeply remove COD and BOD in sewage at a suitable temperature 5 , ammonia nitrogen and TP, and can effectively remove COD and BOD in sewage under low temperature conditions 5 , ammonia nitrogen and TP. The invention also discloses any of the following uses of the compound microbial preparation: the use in sewage denitrification and / or dephosphorization; the use in sewage deodorization and / or landfill leachate deodorization; the use in increasing the transparency of sewage purposes; purposes in the preparation of sewage treatment chemicals. Sewage is industrial sewage, urban sewage, rural sewage, landfill leachate or sewage obtained by fermentation of perishable waste.

Description

technical field [0001] The invention belongs to the technical field of microbial preparations, and in particular relates to a composite microbial preparation and its use in sewage treatment. Background technique [0002] With the rapid development of my country's social economy and the acceleration of urbanization, the output of urban domestic waste continues to increase, and perishable waste accounts for about half of the domestic waste. Perishable garbage, also known as wet garbage or kitchen garbage, generally refers to the kitchen waste generated in the production process of catering operators, unit canteens, etc., as well as the perishable garbage generated in household life, mainly including: leftovers Leftover rice, vegetable stems and leaves, meat offal, shell and melon rind, etc. Perishable garbage contains a large amount of starch, protein, oil, plant fiber, etc., and is extremely nutritious. If it is not handled properly, it will easily lead to the proliferation ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/20C02F101/10C02F101/16C02F101/38C02F101/34C02F101/36
CPCC02F3/34C02F3/006C08H8/00C02F2101/105C02F2101/16C02F2303/02C02F2209/08C02F2209/10C02F2209/14C02F2209/18C02F2209/06C02F2101/38C02F2101/34C02F2101/36
Inventor 徐坚麟付源王俊滔向粤琴
Owner HANGZHOU NAXI ECOLOGICAL TECH CO LTD
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