Immobilized cold-adapted microorganismbe carbonized sludge carrier filler for sewage treatment and application thereof

A technology for sewage treatment and sewage treatment plant, which is applied in the treatment of granular microbial carriers, biological water/sewage treatment, water/sludge/sewage treatment, etc. It can solve the problems of poor stability of biological carriers, low sewage treatment efficiency and low microbial concentration and other problems to achieve the effect of increasing the density of microorganisms, overcoming poor viability, and ensuring the treatment effect.

Inactive Publication Date: 2018-12-18
QUFU NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above problems, the object of the present invention is to provide a fixed low-temperature microbial carbonized sludge carrier filler for optimizing sewage treatment and its application method, which can improve the existing shortcomings of low sewage treatment efficiency, low microbial concentration, and poor stability of biological carriers at low temperatures in winter

Method used

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  • Immobilized cold-adapted microorganismbe carbonized sludge carrier filler for sewage treatment and application thereof
  • Immobilized cold-adapted microorganismbe carbonized sludge carrier filler for sewage treatment and application thereof

Examples

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Effect test

Embodiment 1

[0038] A fixed low-temperature microbial carbonized sludge carrier filler for sewage treatment, characterized in that the carrier filler is a sphere and consists of the following raw materials in parts by weight:

[0039] 30 parts of carbonized sludge, 20 parts of low-temperature mixed bacteria, 30 parts of 6.0% polyvinyl alcohol solution,

[0040] 19 parts of 2.0% sodium alginate solution, 1 part of concentrated carrageenan powder;

[0041] The carbonized sludge refers to: sludge from a sewage treatment plant is air-dried and crushed, passed through an 80-mesh sieve, and then carbonized at a high temperature of 700°C under the protection of nitrogen;

[0042] Described low-temperature mixed bacteria refers to: Psychrobacter TM-1, Sphingobacterium TM-2, Pseudomonas TM-3 three kinds of low-temperature bacteria, the volume ratio is 1:1:1;

[0043] The 6.0% polyvinyl alcohol solution refers to: add 6 g of polyvinyl alcohol into 100 mL of warm deionized water, fully stir ...

Embodiment 2

[0049] From December 18, 2017 to January 17, 2018, according to the inoculation amount of g bacteria agent / V sewage set at 5.0 g / L, the low-temperature microbial carbonized sludge carrier filler was put into the SBR reactor, and the range of water temperature was controlled to be 5~9℃. Through continuous monitoring for one month, this technology can make the average removal rate of ammonia nitrogen in SBR process reach 80.09%, the removal rate of TN reaches 76.24%, the removal rate of TP maintains at 79.72%, and the removal rate of COD maintains at 88.62%.

Embodiment 3

[0051] From December 18, 2017 to January 17, 2018, according to the inoculation amount of 5.0 g / L (g bacterial agent / V sewage), the low-temperature microbial carbonized sludge carrier filler was put into the AAO reactor, and the water temperature ranged from 5 to 9°C. Through continuous monitoring for one month, this technology can make the average removal rate of ammonia nitrogen in AAO process reach 85.27%, TN removal rate reach 83.67%, TP removal rate maintain at 83.49%, and COD removal rate maintain at 85.01%.

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Abstract

The invention relates to an immobilized cold-adapted microorganismmicrobe carbonized sludge carrier filler for sewage treatment and application thereof. According to the filler, carbonized sludge, polyvinyl alcohol, sodium alginate and concentrated carrageenan powder are optimally proportioned; mixed with the concentrated carrageenan powder, activated sludge biochar as an adsorbing carrier mixed with three strains of pyschrophiles, and with polyvinyl alcohol, sodium alginate and the concentrated carrageenan powder as embedding carriers and calcium chloride as a cross-linking agent, the carbonized sludge carrier filler with enriched immobilized cold-adapted microbes is produced. When the microorganismmicrobe filler disclosed by the invention is applied into the intensified treatment of winter sewage, the removal rates of ammonia nitrogen, TN, TP and COD in water can reach 80.09 to 85.27 percent, 76.24 to 83.67 percent, 79.72 to 85.05 percent and 85.01 to 90.52 percent, and the method disclosed by the invention is an energy-saving and high-efficiency biological intensified remedication technique.

Description

technical field [0001] The invention belongs to the technical field of municipal and environmental protection engineering, and relates to a fixed microbial carbonized sludge carrier filler for optimizing sewage treatment and its application. The preparation method of the immobilized bacterial agent is simple, and the sludge of a sewage treatment plant can be recycled and used to immobilize low-temperature microorganisms. , improve the effect of sewage treatment in winter, and are widely used in low-temperature sewage treatment in winter sewage treatment plants and river water bodies. Background technique [0002] The urban sewage treatment in my country is dominated by biological methods, and mesophilic bacteria with high activity and degradation ability at room temperature play a major role in sewage treatment. In the northern region, the water temperature is low in winter, resulting in poor biological treatment of sewage, and it is difficult for the effluent to meet the st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34C02F3/00
CPCC02F3/00C02F3/348C02F2003/003C02F2103/001C02F2103/007
Inventor 唐美珍姜洁杨月伟袁敏陈峻峰
Owner QUFU NORMAL UNIV
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