Biological trickling filter filler and preparation method thereof

A technology of biological trickling and raw materials, applied in chemical instruments and methods, separation methods, biological treatment devices, etc., can solve the problems of low treatment rate of refractory pollutants, poor compatibility between microorganisms and fillers, shortening of biofilm fixation time, etc. , to achieve the effect of stabilizing the space network structure, shortening the fixation time, and being easy to realize

Inactive Publication Date: 2019-08-30
广西霸普环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a biological trickling filter filler and a preparation method thereof for the problems of poor compatibility between microorganisms and fillers, long biofilm fixation time, and low treatment rate of refractory pollutants in the treatment of industrial waste gas and wastewater. Realize rapid film formation and improve the treatment efficiency of refractory pollutants, so that the biofilm fixation time can be shortened to 5 hours, the removal rate of organic matter in industrial waste gas and wastewater can reach more than 90%, and the removal rate of 1,4-dioxane can reach 80% % and above, the removal rate of dioxin is above 80%

Method used

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  • Biological trickling filter filler and preparation method thereof
  • Biological trickling filter filler and preparation method thereof
  • Biological trickling filter filler and preparation method thereof

Examples

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Effect test

Embodiment 1

[0035]A biological trickling filter filler, comprising the following raw materials in parts by weight: 100 parts of liquid nitrogen, 20 parts of polylactic acid, 10 parts of soybean protein isolate, 15 parts of ceramic powder, 11 parts of oleander extract, 7 parts of chrysanthemum extract 3 parts, 3 parts of formic acid solution, 3 parts of polyvinyl alcohol and 0.1 part of manganese acetate.

[0036] Wherein, the preparation method of oleander extract is as follows: according to the weight ratio, take 16 parts of oleander leaves, add 160 parts of ethanol aqueous solution with a mass fraction of 70%, heat and reflux at 80 ° C for 60 minutes, and then add activated carbon 8 part, continue to heat at 80°C for 20 minutes, then filter, collect the oleander filtrate, and then concentrate it so that the volume after concentration is 1 / 8 of the volume before concentration, then add 3 parts of tea saponin, at 500 rpm Stir at a rotating speed for 5 minutes to obtain the oleander extrac...

Embodiment 2

[0047] A biological trickling filter filler, comprising the following raw materials in parts by weight: 150 parts of liquid nitrogen, 40 parts of polylactic acid, 30 parts of soybean protein isolate, 25 parts of ceramic powder, 21 parts of oleander extract, 17 parts of celery extract parts, 10 parts of formic acid solution, 9 parts of polyvinyl alcohol and 1 part of manganese acetate.

[0048] Wherein, the preparation method of oleander extract is as follows: according to the weight ratio, take 28 parts of oleander leaves, add 250 parts of ethanol aqueous solution with a mass fraction of 90%, heat and reflux at 90 ° C for 90 minutes, and then add activated carbon 16 part, continue to heat at 90°C for 30 minutes, then filter, collect the oleander filtrate, and then concentrate it so that the volume after concentration is 1 / 5 of the volume before concentration, then add 9 parts of tea saponin, at 800 rpm Stir at a rotating speed for 15 minutes to obtain the oleander extract.

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Embodiment 3

[0059] A biological trickling filter filler, comprising the following raw materials in parts by weight: 125 parts of liquid nitrogen, 25 parts of polylactic acid, 15 parts of soybean protein isolate, 18 parts of ceramic powder, 13.5 parts of oleander extract, 9.5 parts of celery extract parts, 4 parts of formic acid solution, 5 parts of polyvinyl alcohol and 0.3 parts of manganese acetate.

[0060] Wherein, the preparation method of oleander extract is as follows: according to the weight ratio, take 19 parts of oleander leaves, add 182 parts of ethanol aqueous solution with a mass fraction of 75%, heat and reflux at 83 ° C for 67 minutes, and then add 10 parts of activated carbon Continue to heat at 83°C for 22 minutes, then filter, collect the oleander filtrate, and then concentrate, so that the volume after concentration is 1 / 7 of the volume before concentration, then add 4.5 parts of tea saponin, at 570 rpm Stir at a rotating speed for 8 minutes to obtain the oleander extra...

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Abstract

The invention provides a biological trickling filter filler and a preparation method thereof and in particular relates to the technical field of waste gas and wastewater purification. The biological trickling filter filler comprises the following raw materials: 100-150 parts of liquid nitrogen, 20-40 parts of polylactic acid, 10-30 parts of soy isolate protein, 15-25 parts of ceramic powder, 11-21parts of a nerium indicum extract, 7-17 parts of a lythrum salicaria extract, 3-10 parts of a formic acid solution, 3-9 parts of polyvinyl alcohol and 0.1-1 part of manganese acetate. The biologicaltrickling filter filler provided by the invention is capable of achieving rapid membrane formation and improving the treatment efficiency of refractory pollutants, the fixation time of a bio-membraneis shortened to 5 hours at most, removal rates of organic matter in industrial waste gases and wastewater are up to 90% or greater, the removal rate of 1,4-dioxane is up to 80% or greater, and the removal rate of dioxin is up to 80% or greater. The invention has another purpose of providing the preparation method of the biological trickling filter filler. The method is stable and controllable, easy to achieve and applicable to on-scale production.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of waste gas and wastewater purification, in particular to a biological trickling filter filler and a preparation method thereof. [0003] 【Background technique】 [0004] At present, the treatment technologies for industrial waste gas and wastewater include absorption, adsorption, catalysis, incineration, condensation and biological treatment technologies. Among them, biological treatment technology includes biological filtration, biological trickling filtration and biological washing technology, etc., which have the advantages of good treatment effect, no secondary pollution, low investment and operation costs, and easy management, so they are widely used. [0005] The process of bio-trickling filtration treatment technology includes: placing a certain height of packing in the bio-trickling filter, and then inoculating microorganisms on the packing to form a biofilm. Pollutants enter the packing fro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/85B01D53/44C02F3/34C02F101/30
CPCB01D53/85B01D53/44C02F3/34B01D2251/95B01D2258/02C02F2101/30C02F2203/006C02F2305/06Y02A50/20
Inventor 荣波徐立新叶新忠
Owner 广西霸普环保科技有限公司
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