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Composite microbial preparation for water pollution treatment and preparation method of composite microbial preparation

A technology of compound microorganisms and water pollution, applied in the field of water pollution control, can solve the problems of affecting the reproduction of microorganisms, uneven distribution of carbon sources, and untimely replenishment of carbon sources, etc. Effect

Active Publication Date: 2018-09-28
ZHEJIANG UNIV OF FINANCE & ECONOMICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, this method of operation has the problem of untimely carbon source replenishment, and on the other hand, there is the problem of uneven carbon source input, which affects the reproduction of microorganisms.

Method used

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  • Composite microbial preparation for water pollution treatment and preparation method of composite microbial preparation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Preparation of nutrient solution: take 0.3g ZnSO 4 ·7H 2 O, 0.05g CuSO4 ·5H 2 O, 0.5g FeSO 4 ·7H 2 O, 0.01g H 3 BO 3 , 0.3g NiSO 4 ·6H 2 O, 0.08g MnCl 2 4H 2 O, 0.02g (NH 4 ) 6 Mo 7 o 24 4H 2 O was added to 1L double distilled water and stirred to dissolve to obtain a trace element solution; take 0.3g NH 4 Cl, 1.2g NaHCO 3 , 0.1CaCl 2 , 0.5gKH 2 PO 4 , 0.3gMgSO 4 ·7H 2 O was added to 1L of double-distilled water and stirred to dissolve to obtain an inorganic salt solution; take 6.5mL of trace element solution, 0.65g of sodium lactate, and 1mL of yeast extract solution, add it to 1L of inorganic salt solution, stir and mix well, and adjust the pH to 6.5 to 7.5 to obtain nutritional liquid.

[0032] Preparation of microbial mixed solution: the aerobic sludge retrieved from the sewage purification plant was placed in a closed state, allowed to settle for 5 days, poured off the supernatant, took 1L of the bottom sediment sludge and added 300mL of nutrie...

Embodiment 2

[0038] The preparation of nutrient solution is the same as embodiment one.

[0039] The preparation of the microbial mixture is the same as in Example 1.

[0040] The preparation of agar-modified chitosan is the same as in Example 1.

[0041] The preparation of modified loofah: take shells and clean them up, dry and pulverize them, pass through a 500-mesh sieve, mix and stir the obtained shell powder with 20wt% acetic acid solution at a solid-to-liquid ratio of 40g / L for 5 hours, and filter to obtain the shell powder activator; Clean the natural loofah, put the cleaned loofah in a tube furnace, and carry out carbonization heat treatment at 950°C for 1.5 hours in an ammonia atmosphere, cool with the furnace, and take out the carbonized loofah; carbonized loofah The loofah is placed in a plasma reactor, and nitrogen is used as the plasma gas. Under the conditions of electrode spacing 10mm and power 130W, the plasma is treated for 15s, and the carbonized loofah obtained by plasm...

Embodiment 3

[0045] The preparation of nutrient solution is the same as embodiment one.

[0046] The preparation of the microbial mixture is the same as in Example 1.

[0047] The preparation of agar-modified chitosan is the same as in Example 1.

[0048] The preparation of modified loofah: take shells and clean them up, dry and pulverize them, pass through a 500-mesh sieve, mix and stir the obtained shell powder with 20wt% acetic acid solution at a solid-to-liquid ratio of 40g / L for 5 hours, and filter to obtain the shell powder activator; Clean the natural loofah, put the cleaned loofah in a tube furnace, and conduct carbonization heat treatment at 1000°C for 1.5h in an ammonia atmosphere, cool with the furnace, take out the carbonized loofah; carbonized loofah The loofah is placed in a plasma reactor, and nitrogen is used as the plasma gas. Under the conditions of electrode spacing 10mm and power 130W, the plasma is treated for 15s, and the carbonized loofah obtained by plasma treatmen...

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Abstract

The invention relates to the technical field of water pollution control, and in particular relates to a composite microbial preparation for water pollution treatment and a preparation method of the composite microbial preparation. The composite microbial preparation comprises microorganisms and a composite carrier, preparation raw materials of the composite carrier comprises modified retinervus luffae fructus, rice husks, peanut shells and agar-modified chitosan, and a mass ratio of the modified retinervus luffae fructus to the rice husks to the peanut shells to the agar-modified chitosan is 2:0.3:0.4:0.3, wherein the microorganisms are prepared by domestication culture of aerobic sludge, and the modified retinervus luffae fructus is prepared by performing carbonization heat treatment on retinervus luffae fructus, performing plasma treatment and performing shell powder activation treatment. The composite microbial preparation prepared by the method disclosed by the invention has a solid carbon source, the natural retinervus luffae fructus with an overlapped net-shaped structure is utilized to expand a lodging space of the microorganisms, and a contact area of the microorganisms andthe carbon source is increased, so that the microorganisms in each position are guaranteed to have carbon source supply; and the composite microbial preparation provides nutrients for reproduction ofthe microorganisms, and can be widely used in restoration treatment of industrial wastewater, domestic sewage and groundwater.

Description

technical field [0001] The invention relates to the technical field of water pollution control, in particular to a composite microbial preparation for water pollution control and a preparation method thereof. Background technique [0002] Water availability has played a vital role throughout human history. With the growth of population and the increase of economic and social activities, the global water demand continues to rise, and the resulting water pollution is becoming more and more serious. This has largely promoted the development of sewage treatment processes. Among them, biological sewage treatment systems, which use microbial characteristics to degrade organic matter, remove nutrients, and convert toxic substances into non-toxic substances, play an important role in sewage treatment. [0003] Microorganisms are a general term for organisms that are invisible or unclear to the naked eye. Including prokaryotes (bacteria, actinomycetes and cyanobacteria), eukaryotes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/10C02F3/34C12N11/10C12N11/12B01J20/20B01J20/28B01J20/30C02F101/20C02F103/06
CPCB01J20/20B01J20/28057C02F1/283C02F3/106C02F3/108C02F3/109C02F3/34C02F2101/20C02F2103/002C02F2103/06C02F2305/06C12N11/10C12N11/12Y02W10/10
Inventor 鲁仕宝鲍海君李蔚
Owner ZHEJIANG UNIV OF FINANCE & ECONOMICS
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