Novel core-shell structured biological filler and preparation method thereof

A core-shell structure and bio-filler technology is applied in the field of novel core-shell structure bio-filler and its preparation, which can solve the problems of increasing the complexity of filler filling, difficult to control the ratio, difficult to mix evenly, etc. Easy, delaying effect of acidification time

Active Publication Date: 2016-05-25
广东省南方环保生物科技有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual engineering applications, there are still problems such as difficult to control the ratio and difficult to mix uniformly, which increases the complexity of filler filling.

Method used

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  • Novel core-shell structured biological filler and preparation method thereof
  • Novel core-shell structured biological filler and preparation method thereof
  • Novel core-shell structured biological filler and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Raw materials: by mass fraction, including 25% of activated sludge from urban sewage treatment plants with a moisture content of 80%, 1% of deodorant bacteria agent, 20% of bamboo charcoal powder, 4% of iron red, 10% of calcium oxide and silicates Inorganic gel (China Resources Cement, P.Ⅱ52.5R Portland cement) 40%, the deodorizing bacteria agent can be one or more combination bacteria in sulfur oxidizing bacteria, ammonia oxidizing bacteria, VOCs degrading bacteria , what adopted in the present embodiment is the sulfur oxidizing bacteria bacterial agent, becomes powder;

[0030] a. Mix the activated sludge, deodorizing bacteria agent and 25% silicate inorganic gel in total, and then extrude and granulate. The particle size is 10-15mm, and then air-dried for 6 days in a ventilated environment. get aggregate;

[0031] b. Mix bamboo charcoal powder, iron red, calcium oxide and the remaining silicate inorganic gel evenly and sieve through a 200-mesh sieve to obtain powder...

Embodiment 2

[0040] Raw materials: by mass fraction, including 20% ​​of activated sludge from urban sewage treatment plants with a water content of 80%, 0.2% of deodorant bacteria, 25% of bamboo charcoal powder, 2% of iron red, 15% of calcium oxide and silicates Inorganic gel 37.8%, described deodorant bacterial agent can be one or more combination bacteria in sulfur oxidizing bacteria, ammonia oxidizing bacteria, VOCs degrading bacteria, what adopted in the present embodiment is sulfuric bacterial bacterial agent, becomes powder;

[0041] a. Mix activated sludge, deodorizing bacteria agent and 15% silicate inorganic gel in total, then extrude and granulate. The particle size is 10-15mm, and then air-dry for 5 days in a ventilated environment. get aggregate;

[0042] b. Mix bamboo charcoal powder, iron red, calcium oxide and the remaining silicate inorganic gel evenly and sieve through a 200-mesh sieve to obtain powder;

[0043] c. Put the aggregate into the ball forming plate, sprinkle ...

Embodiment 3

[0046] Raw materials: by mass fraction, including 21% of activated sludge from urban sewage treatment plants with a water content of 80%, 1% of deodorant bacteria, 15% of bamboo charcoal powder, 5% of iron red, 8% of calcium oxide and silicates Inorganic gel 50%, described deodorant bacterium agent can be one or more combination bacteria in sulfur oxidizing bacteria, ammonia oxidizing bacteria, VOCs degrading bacteria, what adopted in the present embodiment is sulfur oxidizing bacteria, ammonia oxidizing bacteria Bacteria, VOCs degrading bacteria mixed bacterial agent of three kinds of bacteria, in powder form;

[0047] a. Mix activated sludge, deodorizing bacteria agent and 35% silicate inorganic gel in total, then extrude and granulate, the particle size is 10-15mm, and then air-dry for 7 days in a ventilated environment. get aggregate;

[0048] b. Mix bamboo charcoal powder, iron red, calcium oxide and the remaining silicate inorganic gel evenly and sieve through a 200-mes...

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Abstract

The invention discloses a novel core-shell structured biological filler and a preparation method of the novel core-shell structured biological filler. The filler is prepared from the following raw materials in terms of mass percent: 20 percent to 30 percent of activated sludge, 0.2 percent to 1 percent of antibacterial deodorizing agent, 15 percent to 25 percent of bamboo charcoal powder, 2 percent to 5 percent of iron oxide red, 8 percent to 15 percent of calcium oxide and 35 percent to 50 percent of silicate inorganic gel. The method comprises the following steps of mixing the activated sludge, the antibacterial deodorizing agent and 15 percent to 35 percent of the silicate inorganic gel in total quantity, and squeezing, granulating and drying the mixed materials to obtain aggregates; uniformly mixing the bamboo charcoal powder, the iron oxide red, the calcium oxide and the residual silicate inorganic gel to obtain a powder material; putting the aggregates onto a ball forming disk, and spraying the powder material and water at the same time along with the process of rotating the ball forming disk, wherein the water spraying quantity is 5 percent to 20 percent of the total mass of the raw materials; gradually wrapping the surface of the aggregates by utilization of the powder material so as to obtain a preliminarily-cured core-shell filler, and obtaining the novel core-shell structured biological filler after curing. The filler disclosed by the invention has the advantages of short biological startup period, strong acid/base buffering capacity and rapid biochemical reaction rate.

Description

technical field [0001] The invention belongs to the field of air pollution control, and in particular relates to a novel core-shell structure biological filler for degrading malodorous gas and a preparation method thereof. Background technique [0002] The new odor emission standard will be released soon, the controlled indicators will increase, and the emission limit will be tightened. How to ensure that the odor and odor concentration will meet the standard in the future, it is urgent to upgrade the existing deodorization technology to make it meet the requirements of the new emission standard. As the most widely used deodorization method, biological filtration technology bears the brunt, and biological filler plays a key role in the whole technology. It is not only a support carrier for microbial growth, but also a gas-liquid two-phase mass transfer medium, and its performance directly affects the waste gas. Therefore, the development of new biological fillers is very nec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/30B01J23/745B01D53/02B01D53/85B01D53/88
CPCB01D53/02B01D53/85B01D53/88B01D2257/708B01J20/24B01J23/745B01J2220/4887Y02A50/20Y02E50/30
Inventor 郑理慎柯国洲张甜甜陈志平廖裕芬李建军
Owner 广东省南方环保生物科技有限公司
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