CN109516660A

CN109516660A - A method of municipal sludge stink is removed by major auxiliary burden of STEVIA REBAUDIANA

Info

Publication number: CN109516660A
Application number: CN201811602812.8A
Authority: CN
Inventors: 程桂阳; 郝再彬; 李霞; 李海云
Original assignee: Guilin University of Technology
Current assignee: Guilin University of Technology
Priority date: 2018-12-26
Filing date: 2018-12-26
Publication date: 2019-03-26

Abstract

The invention discloses a kind of methods for removing municipal sludge stink.The raw material of solid adjuvant material parts by weight: STEVIA REBAUDIANA solid adjuvant material: the residue after STEVIA REBAUDIANA fresh leaf or stevioside extraction, xeraphium account for the 5%--50% of sludge total weight；Fragrant auxiliary material is that orange peel after drying and crushing or illiciumverum or cassia bark or Chinese prickly ash or spiceleaf or eucalyptus leaves, fragrant solid adjuvant material account for 0.1%--10% part of sludge total weight；Other auxiliary materials account for the 0.1%--10% of sludge total weight, are made of diatomite and ferrous sulfate；Microbial inoculum Auxiliary Liquid Material accounts for the 0.1%--30% of sludge total weight, and deodorant is made in microbial inoculum and solid adjuvant material mixed fermentation.Compared with prior art, the invention has the following beneficial effects: the present invention, and the stink of sludge not only can be effectively removed, but also has bacteriostasis concurrently；STEVIA REBAUDIANA residue is turned waste into wealth, operating cost is greatly reduced, the practicality is stronger；Preparation process is simple, low in cost.

Description

A method of municipal sludge stink is removed by major auxiliary burden of STEVIA REBAUDIANA

Technical field

The invention belongs to biological deodorizing preparation technical fields, belong to biotechnology, the bioengineering subject of conservation culture.It is Residue after extracting glucosides using STEVIA REBAUDIANA fresh leaf or STEVIA REBAUDIANA is the method that primary raw material removes sludge smell.

Background technique

Sludge refer to physical method, chemical method, physical-chemical process and bioanalysis etc. handle waste water when generate sediment, Grain object and floating material, sludge can release the small molecules foul gas such as strong ammonia, hydrogen sulfide in processing disposal process, Ecological environment is seriously affected, therefore odor pollution problem must be efficiently controlled in the processing links of sludge.In order to inhibit and Sludge foul gas is cut down, various deodorizing methodss are also come into being, but most is chemical method deodorization, often Cause secondary environmental pollution and biomass organic resource that can not recycle.Mainly there is chemistry to remove the control of sludge stench at present Smelly method, physical deodorization method are thrown although wherein chemical deodorization method and physical deodorization method etc. can obtain desired deodorizing effect Money and operating cost compared with；And low energy consumption needed for biological odor removal method, operation and maintenance cost is few, but in the prevalence of biological deodorizing The inferior problem of low efficiency.In the market, that there is also specific surface areas is small, adsorbance is low, regeneration is tired for common natural plant deodorant The problems such as difficult, at high cost, the deficiencies of odor removal efficient is low, deodorizing effect is poor.

According to investigations, Chinese STEVIA REBAUDIANA industrial products account for the 80% of global provisioning amount, and 2009, Chinese STEVIA REBAUDIANA was industrial Yield about 4000t, stevioside leaf annual requirement reach 40000t.But Chinese STEVIA REBAUDIANA product is still mainly low-grade to be added Chemical product, product are mainly stevia glucoside extract；Residue and waste material after extracting glucosides are handled often as waste, Expend a large amount of manpower, material resources and financial resources.By measurement, STEVIA REBAUDIANA insoluble matter is mainly cellulose, hemicellulose and a small amount of pectin, tool There is good suction-operated；By largely testing, it has been found that the residue after STEVIA REBAUDIANA fresh leaf or Stevia sweetener extraction Cooperation is carried out after the fermentation of microbial inoculum with the auxiliary material of solid, can be very good the stink of removal sludge, it may be possible to therein Glucosides or the macromolecular substances formed with glucosides can be good at ammonia, the hydrogen sulfide discharged in processing disposal process with sludge Etc. small molecules foul gas be combined, to reach good deodorizing effect.The deodorization of sludge is used for using STEVIA REBAUDIANA residue, A large amount of processing STEVIA REBAUDIANA residue can not only be saved and bring financial resources, but also biomass resource circulation benefit may be implemented With bringing preferable Social benefit and economic benefit.

Summary of the invention

The purpose of the present invention is the residue after extracting glucosides using STEVIA REBAUDIANA or STEVIA REBAUDIANA is primary raw material as sludge The method of deodorization.

Technical solution of the present invention for specific surface area is small, adsorbance is low, regeneration is difficult existing for natural plant deodorant, The problems such as at high cost, the deficiencies of odor removal efficient is low, deodorizing effect is poor.Wherein, STEVIA REBAUDIANA residue is the sludge deodorization of major ingredient preparation Agent as a kind of natural plant deodorant, have the characteristics that large amount of adsorption, raw material be easy to get, be at low cost, odor removal efficient it is higher.This hair Bright technical solution is as follows:

A method of the residue after extracting glucosides with STEVIA REBAUDIANA or STEVIA REBAUDIANA prepares Sludge deodorant, the preparation method Using STEVIA REBAUDIANA or STEVIA REBAUDIANA residue as raw material, is realized and is matched by following steps:

(1) solid adjuvant material 1: collecting the residue after STEVIA REBAUDIANA fresh leaf or Stevia sweetener extract, carry out nature dry or Industrialization drying, be broken into powder look over so as to check 10--400 sieve, it is spare；

(2) solid adjuvant material 2: collecting orange peel or illiciumverum or cassia bark or Chinese prickly ash or spiceleaf or eucalyptus leaves, carries out nature solarization Dry or industrialization drying is broken into powder and looks over so as to check 10--400 sieve, prepares fragrant solid powder, according to each 1 part when non-single raw material Ratio is added and is mixed, spare；

(3) solid adjuvant material 3: additional other solid adjuvant materials: diatomite, ferrous sulfate, the two ratio respectively account for 50%；

(4) mix: solid adjuvant material 2 and solid adjuvant material 3 are proportionally mixed to get solid adjuvant material 4；

(5) it is mixed with sludge: solid adjuvant material 1 and solid adjuvant material 4 and Auxiliary Liquid Material online production stirring or non-online production It is stirred.The so-called shape for referring to that the sludge of sewage treatment plant is come out by separating dry space from moist space, is stirred while mud extraction online State.

The present invention develops a kind of base starting material convenient for the method for the removings sludge smell collected, turned waste into wealth, with very Good practical application value and promotional value.

Specific implementation

It is next combined with specific embodiments below that present invention be described in more detail

Embodiment 1

A method of the residue after extracting glucosides with STEVIA REBAUDIANA or STEVIA REBAUDIANA prepares Sludge deodorant, the preparation method Using STEVIA REBAUDIANA or STEVIA REBAUDIANA residue as raw material, obtained by following steps:

(3) solid adjuvant material 3: additional other solid adjuvant materials: diatomite, ferrous sulfate, the two ratio respectively account for 50%；(4) it mixes Close: solid adjuvant material 2 and solid adjuvant material 3 are proportionally mixed to get solid adjuvant material 4；

(6) it mixes: being carried out according to the following table

Embodiment 2

The collection that material is carried out according to example 1, then according to following carry out ingredient:

Method is the same as embodiment 1.

Embodiment 3

The natural plant deodorant of the Sludge deodorant and market circulation that are prepared by above example compares, With large amount of adsorption, raw material is easy to get, and deodorizing effect is preferable；STEVIA REBAUDIANA residue itself has also obtained well again as waste material simultaneously It utilizes, the cost of manufacture of deodorant can also be greatly reduced while reducing to waste material to the pollution of environment, is brought very Considerable economic benefit.

Used STEVIA REBAUDIANA or STEVIA REBAUDIANA extract the residue after glucosides and prepare sludge deodorization as technology according to the present invention, And weight to the above embodiments or quantity or volume modification, all it shall fall within the protection scope of the present invention.

Claims

1. a kind of method for removing municipal sludge stink as major auxiliary burden using STEVIA REBAUDIANA, which is characterized in that major ingredient: city is raw The dry matter of dry matter or rainwater alluvial deposits of the sludge living in the dry matter or plant effuent that life of urban resident is lauched, In sewage treatment plant together by the solid matter of separating dry space from moist space, aqueous 30%-80% is added as the domestic sludge of major ingredient The auxiliary material of 10%--50% is that can reach the purpose of deodorization, and auxiliary material includes STEVIA REBAUDIANA solid adjuvant material and fragrant solid adjuvant material and other Solid adjuvant material, also deodorizing microorganism Auxiliary Liquid Material, STEVIA REBAUDIANA solid adjuvant material account for the 5%--50% of sludge total weight, fragrant solid Auxiliary material accounts for the 0.1%--10% of sludge total weight, other solid adjuvant materials account for the 0.1%--10% of sludge total weight, there are also microbial inoculums Auxiliary Liquid Material accounts for the 0.1%--30% of sludge total weight.

2. being matched according to the method described in claim 1, being realized by following steps:

(1) solid adjuvant material 1: the residue after collecting STEVIA REBAUDIANA fresh leaf or Stevia sweetener extraction, progress nature dries or industry Change drying, be broken into powder look over so as to check 10--400 sieve, it is spare；

(2) solid adjuvant material 2: collecting orange peel or illiciumverum or cassia bark or Chinese prickly ash or spiceleaf or eucalyptus leaves, carry out nature dry or Industrialization drying, be broken into powder look over so as to check 10--400 sieve, prepare fragrant solid powder,

It adds and mixes according to each 1 part of ratio when non-single raw material, it is spare；

(5) it is mixed with sludge: solid adjuvant material 1 and solid adjuvant material 4 and Auxiliary Liquid Material online production stirring or non-online production stirring Mixing, the so-called state for referring to that the sludge of sewage treatment plant is come out by separating dry space from moist space, is stirred while mud extraction online.

3. according to the method described in claim 2, solid adjuvant material 1: the residue after STEVIA REBAUDIANA fresh leaf or Stevia sweetener extraction Xeraphium, it is characterised in that the STEVIA REBAUDIANA fresh leaf or Stevia sweetener residue xeraphium are STEVIA REBAUDIANAs or extract stevia STEVIA REBAUDIANA residue after glycosides is crushed after drying, and by the powder of 10-400 mesh sieve, Stevia sweetener is sweetleaf Synanthrin glycosides, belongs to plant extract sweetener, and additive amount accounts for the 5%--50% of sludge total amount.

4. according to the method described in claim 2, solid adjuvant material 2: fragrant auxiliary material is orange peel or illiciumverum or cassia bark or Chinese prickly ash Or the xeraphium of spiceleaf or eucalyptus leaves, it is characterised in that after it is one such or two or more when match according to the ratio of each portion Mixture of powders is made, by the powder of 10-400 mesh sieve, additive amount accounts for the 0.1%--10% of sludge total amount.

5. formula according to claim 1, solid adjuvant material 3: diatomite and ferrous sulfate are added according to the ratio of 1:1, are added Dosage accounts for the 0.1%--10% of sludge total amount.

6. according to the method described in claim 2, Auxiliary Liquid Material: i.e. liquid bacterial agent, by acetobacter or Bacillus acidi lactici or butyric acid Any one or more of strain of bacillus or citric acid bacillus and white spirit brewing yeast or beer saccharomyces cerevisiae are respectively according to one to one Ratio prepare, above-mentioned microbial inoculum belongs to from public microorganism marketing unit, country and is allowed in the country strain.Additive amount Account for the 0.1%--30% of sludge total amount.

7. according to the method described in claim 2, it is characterised in that it includes following component in parts by mass:

Major ingredient: the sludge 60%--80% of aqueous 30%--80%

Auxiliary material: solid adjuvant material 1:5%--50%

Solid adjuvant material 2:0.1%--10%

Solid adjuvant material 3:0.1%--10%

Auxiliary Liquid Material: 0.1%--30%.