CN102923883B - Method for removing stink materials in biogas slurry - Google Patents
Method for removing stink materials in biogas slurry Download PDFInfo
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- CN102923883B CN102923883B CN201210441274.5A CN201210441274A CN102923883B CN 102923883 B CN102923883 B CN 102923883B CN 201210441274 A CN201210441274 A CN 201210441274A CN 102923883 B CN102923883 B CN 102923883B
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- natural pond
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- stink
- ozone
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- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The invention discloses a method for removing stink materials in biogas slurry. The method is scientific and practical and adopts an ozone aeration oxidation method and powdered activated carbon adsorption method combined mode to treat the biogas slurry, so that the stink materials in the biogas slurry can be removed, and the nutrient ingredients in the biogas slurry are not influenced.
Description
Technical field
The present invention relates to the removal method of stink substance in the liquid of natural pond.
Background technology
Biogas technology, as solving one of effective way that feces of livestock and poultry pollutes, is developed rapidly in recent years, and its potential social environment economic benefit having has been subject to social recognition.
In the liquid of natural pond, contain in the macronutrients such as abundant nitrogen, phosphorus, potassium and calcium, copper, iron, zinc, manganese etc., micronutrient element, the natural green fertilizer of Promoting plant growth, being to produce pollution-free vegetable to advocate one of fertilizer of using, is the compoiste fertilizer that fast slow has both.In the liquid of natural pond, ammonia and ammonium salt and some microbiotic have obvious effect to crop pest, and with natural pond liquid prevention and elimination of disease and pests, pollution-free, without residual hazard, without resistance, therefore, people call " biological pesticide " natural pond liquid again.But the ammonia that produces in methane-generating pit anaerobically fermenting, hydrogen sulfide, indoles, volatile phenol etc. are the essential substance that causes natural pond liquid stink, the stink of natural pond liquid has greatly limited it and has applied.In prior art, also there is no a kind of science and the removal method of stink substance in practical natural pond liquid.
Summary of the invention
The object of the present invention is to provide a kind of science and the removal method of stink substance in practical natural pond liquid.Effectively to remove the stink substance in the liquid of natural pond on the basis that retains to greatest extent nutritive substance, do not introduce other foreign material simultaneously.
In order to realize above-mentioned task, in the liquid of natural pond provided by the invention, the removal method of stink substance is to adopt the oxygenizement of ozone and the adsorption of activated carbon to remove the stink substance in the liquid of natural pond.
A kind of concrete steps that realize aforesaid method are as follows:
Step 1, ozone oxidation:
In the liquid of natural pond, pass into ozonation aerated;
Step 2, activated carbon adsorption:
In natural pond liquid after ozone oxidation, add powder activated carbon and stir the stink substance making in the liquid of activated carbon adsorption natural pond.
In above-mentioned steps one, the intake of ozone is: the ozone intake that in the liquid of every 1L natural pond is 2g/ hour.
In above-mentioned steps one, in the liquid of natural pond, pass into ozonation aerated 2 hours.
In above-mentioned steps two, the dosage of powder activated carbon is: the powder activated carbon that adds 2.5g in the liquid of every 1L natural pond.
In natural pond liquid in above-mentioned steps two after ozone oxidation, add powder activated carbon and stir the stink substance making for 30 minutes in the liquid of activated carbon adsorption natural pond.
Adopt method of the present invention natural pond after treatment liquid can adopt centrifugal method to remove activated carbon.
The present invention adopts the oxygenizement of ozone and the adsorption of gac to remove the stink substance in the liquid of natural pond, specifically has following feature:
(1) simple to operate, in the process of deodorizing, can not introduce objectionable impurities simultaneously.
(2) in effectively removing natural pond liquid main stink substance simultaneously on natural pond liquid in the impact of nutritive substance little, adopt method of the present invention to carry out, after deodorizing processing, can not changing the nutrition effectiveness of natural pond liquid to natural pond liquid.
Adopt the inventive method " ozonation aerated-Powdered Activated Carbon absorption coupling method " to process natural pond liquid, simple and convenient, do not pollute, do not destroy the nutritive value of natural pond liquid, processing cost is low, has broad application prospects.
Embodiment
The present invention combines use by ozonation aerated oxidation style and active carbon adsorption, and the main odor causing substance in the liquid of natural pond is removed, and can not make specifically to comprise the following steps:
Step 1, ozone oxidation:
In the liquid of natural pond, pass into ozonation aerated;
Step 2, activated carbon adsorption:
In natural pond liquid after ozone oxidation, add powder activated carbon and stir the stink substance making in the liquid of activated carbon adsorption natural pond.
For guaranteeing the effect of ozone oxidation, avoid passing into excessive ozone simultaneously, in step 1, the intake of ozone is: in the liquid of every 1L natural pond according to the ozone intake of 2g/ hour, and in step 1 ozonation aerated 2 hours.
For effectively realizing the absorption of activated carbon to stink substance in the liquid of natural pond, in step 2, the dosage of powder activated carbon is: the powder activated carbon that adds 2.5g in the liquid of every 1L natural pond.And in the natural pond liquid after ozone oxidation, add after Powdered Activated Carbon and stir with the stir speed (S.S.) of 260 revs/min the stink substance making for 30 minutes in the liquid of activated carbon adsorption natural pond with agitator.
Embodiment 1:
In the present embodiment, adopt aforesaid method to carry out deodorization processing to the natural pond liquid of 10L, natural pond liquid take from thoughtful area, Xi'an normal use two months above and just at the methane-generating pit of aerogenesis.In treating processes, according to the ozone intake of 20g/ hour, with ozonation aerated 2 hours, add afterwards the coconut husk powder activated carbon of 25g, stir after 30 minutes and complete the effective removal to stink substance in the liquid of natural pond with 260 revs/min, agitator.
For supporting explanation technical scheme of the present invention, contriver has carried out following test experience to the composition of deodorizing natural pond after treatment liquid in embodiment 1:
Getting the natural pond liquid of deodorizing 1L after treatment tests as follows:
(1) pH value regulates: with phosphoric acid solution, the pH regulator of natural pond liquid is extremely neutral.
(2) composition detection:
Adopt the TN(total nitrogen in the neutral natural pond liquid of ultraviolet spectrophotometry after to deodorizing), DN(soluble nitrogen) detect;
Adopt molybdenum-antimony anti-spectrophotometric method to detect the TP(total phosphorus in the neutral natural pond liquid after deodorizing), DP(titanium pigment) content;
Adopt nessler reagent light-intensity method to detect NH in the neutral natural pond liquid after deodorizing
4 +-N, NH
3content;
Adopt methylene radical blue laws to detect H in the neutral natural pond liquid after deodorizing
2the content of S;
Adopt the content of volatile phenol in the neutral natural pond liquid after the deodorizing of 4-AA spectrophotometry;
Adopt the content of indoles in the neutral natural pond liquid after spectrophotometry deodorizing.
(3) interpretation of result:
After former natural pond liquid and processing, in the liquid of natural pond, main component analytical results is as shown in table 1:
Table 1
Analytical results shows, adopts method of the present invention to carry out after deodorizing processing natural pond liquid, and hydrogen sulfide, indoles, volatile phenol can't detect, and the clearance of ammonia nitrogen, ammonia is respectively 31.94%, 73.60%; And in this experimentation, can't smell the stink of natural pond liquid, effectively removed the stink in the liquid of natural pond; TN, DN almost do not change, and TP and DP are owing to using phosphorus acid for adjusting pH value, and content increases to some extent, illustrate the nutritive substance impact in the liquid of natural pond little.
The method is not only introduced contaminating impurity natural pond liquid on the basis that retains to greatest extent nutritive substance, and can also effectively remove the stink substance in the liquid of natural pond, makes natural pond liquid deodorization, expands its range of application.
Claims (3)
1. a removal method for stink substance in the liquid of natural pond, is characterized in that, adopts the oxygenizement of ozone and the adsorption of activated carbon to remove the stink substance in the liquid of natural pond, and method is carried out in the steps below:
Step 1, ozone oxidation:
In the liquid of natural pond, pass into ozonation aerated;
Step 2, activated carbon adsorption:
In natural pond liquid after ozone oxidation, add powder activated carbon and stir the stink substance making in the liquid of activated carbon adsorption natural pond;
In described step 1, the intake of ozone is: the ozone intake that in the liquid of every 1L natural pond is 2g/ hour;
In described step 2, the dosage of powder activated carbon is: the powder activated carbon that adds 2.5g in the liquid of every 1L natural pond.
2. the removal method of stink substance in the liquid of natural pond as claimed in claim 1, is characterized in that, passes into ozonation aerated 2 hours in described step 1 in the liquid of natural pond.
3. the removal method of stink substance in the liquid of natural pond as claimed in claim 1, is characterized in that, adds powder activated carbon and stir the stink substance making for 30 minutes in the liquid of activated carbon adsorption natural pond in the natural pond liquid in described step 2 after ozone oxidation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210441274.5A CN102923883B (en) | 2012-11-07 | 2012-11-07 | Method for removing stink materials in biogas slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210441274.5A CN102923883B (en) | 2012-11-07 | 2012-11-07 | Method for removing stink materials in biogas slurry |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102923883A CN102923883A (en) | 2013-02-13 |
| CN102923883B true CN102923883B (en) | 2014-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210441274.5A Expired - Fee Related CN102923883B (en) | 2012-11-07 | 2012-11-07 | Method for removing stink materials in biogas slurry |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105819589A (en) * | 2016-04-05 | 2016-08-03 | 北京化工大学 | Method for removing biogas slurry odor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2006272052A (en) * | 2005-03-28 | 2006-10-12 | Kurita Water Ind Ltd | Method and device for treating organic substance-containing water |
| JO3415B1 (en) * | 2011-03-30 | 2019-10-20 | Crystal Lagoons Tech Inc | System for treating water used for industrial purposes |
| CN102503019B (en) * | 2011-10-12 | 2013-10-16 | 江南大学 | Method for realizing biogas slurry reutilization by recycling biogas slurry |
| CN102718360B (en) * | 2012-06-19 | 2015-09-30 | 蒲晓斌 | Integrated livestock and poultry cultivating wastewater purification method |
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