CN108129010A - A kind of solid biologic enzyme sludge dehydrating agent and preparation method thereof - Google Patents
A kind of solid biologic enzyme sludge dehydrating agent and preparation method thereof Download PDFInfo
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- CN108129010A CN108129010A CN201810084018.2A CN201810084018A CN108129010A CN 108129010 A CN108129010 A CN 108129010A CN 201810084018 A CN201810084018 A CN 201810084018A CN 108129010 A CN108129010 A CN 108129010A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
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Abstract
The invention discloses a kind of solid biologic enzyme sludge dehydrating agents and preparation method thereof, belong to sludge dewatering technical field.The raw material of the dehydrating agent forms：Pectase 5 15%, protease 5 16%, lipase 8 15%, cellulase 8 13%, catalase 5 8%, amylase 1 9%, lysozyme 2 6%, flocculation aid 4 13% and solid filler 20 35%；The sum of mass percent of each raw material components is 100%.Solid biologic enzyme sludge dehydrating agent obtained by the present invention can greatly be dehydrated sludge, and greatly reduce the operating cost of sludge dewatering treatment, treated, and sludge can be according to the actual features of different regions, it is directly used in compost, agricultural soil, landfill, or the processing disposal options such as burning, there is preferable popularizing application prospect.
Description
Technical field
The invention belongs to sludge dewatering technical fields, and in particular to a kind of solid biologic enzyme sludge dehydrating agent and its preparation side
Method.
Background technology
Sludge is the accompaniment of sewage disposal, usually accounts for the 0.5~1% of sewage total amount, due to its complicated component, is both contained
A large amount of organic matter, but containing harmful heavy metal, pathogenic microorganism etc., processing and disposal costs are high, and it is big to stack risk.Thus such as
What is safely, economically and reasonably disposed and is always the research class that countries in the world today is extremely paid close attention to using sludge of sewage treatment plant
Topic.
According to the measuring and calculating of environmental protection administration, annual about 30,000,000 tons or so of the sludge for generating moisture content 80% in the whole nation, and with every
The increased number in year 15%.In sludge containing the nutriments such as a large amount of organic matter and abundant nitrogen phosphorus and heavy metal, salt,
The harmful components such as pathogenic bacteria and parasite, it is mishandling to cause environmental sanitation and pollution problem.
According to the relevant information the current urban wastewater treatment firm in China more than 2000, year, sewage load was up to 45,600,000,000 cubes
Rice, year arrange aqueous about 32,000,000 tons of 80% sludge, nearly 2,000,000 tons of over dry mud amount.With the development of national economy and people's life water
Flat continuous improvement, year sludge volume it is also increasing with 10% or so, if including industrial sludge, channel cleanout, waterworks sludge this
One number is surprising.Sludge is the deposit generated in sewage disposal process, it includes silt particle in sewage, fiber, dynamic
The solid particles such as plant residue and its floccule of condensation, various colloids, organic matter and the metallic element of absorption, microorganism, disease
The integrated solid materials such as bacterium, worm's ovum, weed seed.The moisture percentage in sewage sludge that urban wastewater treatment firm generates is high（75%-99%）, it is organic
Object content is high, perishable.Due to containing the poisonous and harmful substances such as a large amount of heavy metal substance, pathogen in sludge, such as cannot
Safe and environment-friendly processing and disposition causes city city appearance environment and urban safety greatly harm and hidden danger.
The complicated components of sludge, variability is big, and composition flco is agglomerated for suspended solid in water through different modes are cementing,
Loosely organized, in irregular shape, height is non-homogeneous, and specific surface area is high with porosity, has fractal structure, in appearance with class
Branch and reticular structure like villus, jelly liquid, key property are moisture content height.Solid particle in sludge is mainly
Colloidal particle has complicated structure, and very strong with the affinity of water, therefore, the moisture content of sludge is very high, and the height of moisture content is direct
Affect the volume of sludge.The primary sludge moisture content of municipal wastewater treatment plant is generally 95%~97%, and secondary sludge moisture content is then
Up to more than 99%.The form of contained humidity in sludge although different documents has different classification, is generally considered that it is to have
Following four, i.e. Interstitial Water, capillary combination water, surface adsorption water and internal junction Heshui.
Moisture content height is the difficult point of specific resistance to filtration, and the innocuity treatment problem of sludge is always global problem, with
The raising of wastewater treatment in China rate, the yield of sludge will be increasing.But compared with so huge sludge yield, I
The current sludge disposal technology of state is single, equipment falls behind, and disposition rate is low, and about 55.7% sludge does not obtain stablizing place
Reason.The pollutant for having half in sewage can be transferred in sludge.The idea of the light mud of heavy water easily causes secondary pollution.It is dirty
The precondition of mud comprehensive utilization is dehydration.Sewage sludge has compared with high-moisture percentage（90%）, low unit weight（1.006~1.02）, because
And volume is big, pollution weight, transport difficult.Since sludge volume is big, moisture content is high, freight volume is compared with the pressure of freight
Greatly, it is calculated using the moisture content of sludge as 90%, the dry matter in sludge only accounts for 10%, extremely uneconomical in transport.
Containing a large amount of microbial cell and organic matter colloid in sludge, sludge dewatering difficulty is resulted in, is usually dehydrated mud
Cake moisture content is up to 80% or so.The means of sludge treatment mainly include compost, landfill and burning.Landfill, compost and burning are not
The dehydrated sludge cake of moisture content 80% is preferably directly handled, to meet disposal standard and subsequent technique needs, moisture content will be at least reduced to
Less than 60%.Subtract chemical assistant, such as tri-chlorination by force to reduce the main addition strong acid of the currently used method of moisture percentage in sewage sludge
The auxiliary agents such as iron, lime solve the problems, such as dewatering rate, but these methods there are it is following apparent the defects of：A, dosage is big, increases
Add processing cost.In ton sludge in dehydration（It is calculated with the sludge handled to moisture content 60% or so）The chemistry generally added
Auxiliary agent reaches more than 30% and can be only achieved dehydrating effect, actually increases sludge total amount；B, secondary environmental pollution is extremely serious,
First, production process is due to influence of the stirring a large amount of chemical agents of slurry to site surrounding.Second, due to a large amount of chemical agent
It mixes in dewatered sludge, loses the value that agricultural soil resourceization recycles.Third, the sludge outward transport after dehydration
If dealt with improperly, there are unpredictable environmental risks in the process.C increases difficulty and processing to the processing of subsequent sludge treatment
Cost.Low due to adding the dewatered sludge ecological use rate after chemical agent, follow-up disposition most of at present is using burning at burning
Reason, it is not only of high cost but also cause environmental air pollution risk.D, sludge dewatering production process cause equipment to the corrosion of equipment
Service life is reduced, and increases production cost, while site operation personnel's labor intensity is big, working condition is poor.
How efficient low-consume solves moisture percentage in sewage sludge using environmentally friendly product meets at reality and future city sludge
The needs of disposition are managed, the key problem in technology that sludge is effectively disposed is researched and developed as early as possible, is that China's specific resistance to filtration currently faces
Problem.Therefore, the environmentally friendly sludge high-efficiency dehydration technology of practical inexpensive recycling is researched and developed as early as possible to solve
The present situation of ever-increasing municipal sludge and the needs of future development are of great significance, also as the current skill of sludge dewatering treatment
The research hotspot of art.
Invention content
It is an object of the invention in view of the shortcomings of the prior art, providing a kind of solid biologic enzyme sludge dehydrating agent and its preparation
Method.Solid biologic enzyme sludge dehydrating agent obtained by the present invention can greatly be dehydrated sludge, and substantially reduce
The operating cost of sludge dewatering treatment, treated sludge can according to the actual features of different regions, be directly used in compost,
The processing disposal options such as agricultural soil, landfill or burning, have preferable popularizing application prospect.
To achieve the above object, the present invention adopts the following technical scheme that：
A kind of solid biologic enzyme sludge dehydrating agent, the raw material composition of the dehydrating agent are by mass percentage：Pectase 5-
15%th, protease 5-16%, lipase 8-15%, cellulase 8-13%, catalase 5-8%, amylase 1-9%, lysozyme 2-
6%th, flocculation aid 4-13% and solid filler 20-35%；The sum of mass percent of each raw material components is 100%.
The flocculation aid is the mixing of one or both of calcium chloride and magnesium chloride.
The raw material of the solid filler includes diatomite, ceramic powder, bentonite in powder and building brick inferior horn powder.
The preparation method of solid biologic enzyme sludge dehydrating agent as described above, specifically includes following steps：
（1）The preparation of compound biological enzyme：By pectase, protease, lipase, cellulase, catalase, amylase and molten
The liquid enzyme of bacterium enzyme is proportionally weighed respectively, is put into tank and is carried out mixing compounding, with stirring for 40-50 rev/min
It mixes speed and carries out uniform stirring, be 0.005 μm -0.015 μm super by membrane aperture with after under operating pressure 0.1-0.5Mpa
Filter membrane carries out concentration thickening processing, and the enzyme solution of more than apoenzyme unit of activity 3000U/mg, pH value 5-6 is made；By obtained enzyme
Liquid carries out standing nitrification processing in 20-30 DEG C of environment temperature, and the time is 2-4 hour, and obtained compound biological enzyme takes the step
Non-functional impurity in enzyme solution is removed, while is released the active site position of biological enzyme；
（2）The preparation of solid filler：Diatomite, ceramic powder, bentonite in powder and building brick inferior horn powder are passed through into machine respectively
Tool sieves, and obtains the material of grain size 0.1-0.5mm；Material through mechanical grading is proportionally mixed, wherein after screening
Diatomite, ceramic powder, bentonite in powder and building brick inferior horn powder mass percent be：Diatomite 10-20%, ceramic powder
8-10%, bentonite in powder 10-20%, building brick inferior horn powder 50-60%, obtain solid filler, the load as sludge dehydrating agent
Body material；
（3）It is prepared by finished product：Flocculation aid and solid filler, and and step are weighed according to mass percent（1）Compound life obtained
Object enzyme is sufficiently mixed uniformly, immobilizes processing（Treatment temperature is 30-50 DEG C, and processing time is 30-60 minutes）, make enzyme solution
Equal distributed mutually is formed between carrier, is acted on by the molecular attraction between material, enzyme solution is formed and is combined with the molecule of carrier；With
Solid granular biological enzyme sludge dehydrating agent is made through being dried again afterwards；The immobilization is by enzyme and carrier-bound method
Simple easily to promote, the dehydration of excess sludge suitable for sewage disposal has at low cost, advantages of environment protection.
The processing that solid biologic enzyme sludge dehydrating agent is applied to excess sludge by the present invention is disposed, and is to use to be different from commonly
The series of biologic enzyme combination technology of microbial bacteria opens chemical chain more complicated in polluter by enzyme, by its rapid degradation
For small molecule, low molecule organic matter or CO are degraded to from macromolecule organic2、H2The inorganic matters such as O, i.e., made by biological enzyme
It is transformed into chain rupture molecule with by the long-chain molecule in sludge, polysaccharide, cellulose is transformed into protein, amino acid is finally degraded
For inorganic matter, the muddy water quick separating in sludge can be made, a large amount of supernatant discharge reduces sludge volume, realizes decrement
The purpose of change substantially reduces Treatment of Sludge expense.
The solid biologic enzyme sludge dehydrating agent of the present invention carries out minimizing processing using special biological enzyme to sludge, to sludge
Processing is modified, i.e., certain broken wall is taken sludge to pre-process, the hydrolytic process of sludge can be accelerated, makes intracellular organic matter fast
It is instant go out, improve anaerobic digestion performance of sludge and improve dewatering performance of sludge, can make sludge clasmatosis, discharge intracellular macromolecular
Organic matter reduces sewage sludge viscosity so as to improve dewatering to dissolve suspended solid and volatile suspended solids in sludge.Make dirt
Sticky hydrolysis of organic matter in mud destroys the colloform texture of sludge, can improve dewatering and anaerobic digestion performance simultaneously.It is raw
Object enzyme can increase particles collision, intergranular to collide the destruction for resulting in colloform texture, detach irreducible water and solid particle.
In addition, biological enzyme can make the breaks down proteins in sludge, cell ruptures, and the moisture of intracellular is released.It is urged by biological enzyme
The sludge of change technical finesse moisture content of mechanical dehydration in the case where not adding flocculant is greatly lowered.The hydrolysis of sludge is macro
The reduction of volatile suspended solids concentration and the increase of COD, BOD and ammonia nitrogen isoconcentration are shown as in sight, with biological enzyme
Effect, concentration can decline.
The solid biologic enzyme sludge dehydrating agent of the present invention has the characteristics that following：
1. the form of water in biological enzyme process change sludge
Sludge is handled by biological enzyme, and microbial cell breakage, colloform texture and capillary structure destroy, the table of solid particle
Surface properties change, and the combining form of water and solid particle in sludge is made to change；Intracellular water, capillary water, with reference to water and surface
Absorption water is largely discharged, so as to improve the dewatering of sludge.
2. the form of organic matter in biological enzyme process change sludge
Sludge organic matter during biological enzyme changes, and is that the solid organic matters of sludge constantly dissolve first, liquefies；
Secondly, the larger molecular organics of partial solubility, which are also hydrolyzed, becomes small-molecule substance, efficiently solves subsequent anaerobic digestion
In the process the problem of solid organic matters hydrolysis speed limit, be conducive to improve anaerobic sludge digestion efficiency.
3. the water in biological enzyme process sludge is not undergone phase transition
Water in biological enzyme reaction process in sludge is not undergone phase transition, and system overall energy consumption is well below evaporation drying work
Skill, this point are the cores that biological enzyme technology realizes energy saving of system.
The solid filler carrier of use has apparent gap, helps to generate " bridging " between mud granule so as to existing
Make into a kind of latticed three-dimensional structure sludge be easy in extrusion process with press filtration machinery emaciated face from.
The beneficial effects of the present invention are：For the sludge of the natural water bodies such as sewage disposal plant excess sludge and inland river, group
Optimal biological enzyme is closed, using the antimicrobial composition composed entirely, can be existed in aerobic and anaerobic state or even in a variety of pollution sources
When play a role, bioactivity is high, also has deodorising effect while high-efficiency dehydration, specific as follows：
1. realizing the environmentally friendly bearer resource of biological enzyme compounding, effect is that chemicals is inaccessiable；
2. the present invention is fast to sludge dewatering speed, the sludge settling time can shorten 30%, specificity mainly due to biological enzyme and
High efficiency reduces more than 90% chemical conditioner solid dosage；
3. the present invention is good to sludge dewatering effect, dehydrating effect improves more than 80%, and dewatered sludge volume can reduce 50-
80% or so, effect is better than PAC, PAM and Al2(SO4)3；
4. present invention process is simple, do not limited by raw material, it is at low cost, it is easy to spread；Product is adding less, than using chemical drugs
Agent dosage reduces 10-20 times；
5. treatment cost is low, ton sludge unit consumption dehydrating agent cost can decline 20-30%, and huge set is founded the factory or buy without expropriation of land
Standby, integrated treatment cost of disposal and dynamic investment cost are minimum, and dispose significant effect；
6. product of the present invention using pure-natural biological enzyme, without toxic product composition, will not cause secondary pollution, environment
Close friend meets the future directions of biological environmental production industry development.
Specific embodiment
Below in conjunction with specific embodiment, the present invention will be further described, but the present invention is not limited only to these embodiments.
Embodiment 1
A kind of solid biologic enzyme sludge dehydrating agent, the raw material composition of the dehydrating agent are by mass percentage：Pectase 8%, egg
White enzyme 13%, lipase 13%, cellulase 12%, catalase 8%, amylase 1%, lysozyme 5%, calcium chloride 5% and solid are filled out
Charge 35%；The raw material of the solid filler includes diatomite, ceramic powder, bentonite in powder and building brick inferior horn powder.
The preparation method of solid biologic enzyme sludge dehydrating agent as described above, specifically includes following steps：
（1）The preparation of compound biological enzyme：By pectase, protease, lipase, cellulase, catalase, amylase and molten
The liquid enzyme of bacterium enzyme is proportionally weighed respectively, is put into tank and is carried out mixing compounding, with the stirring speed of 40 rev/min
Degree carries out uniform stirring, with after under operating pressure 0.1Mpa, by the ultrafiltration membrane that membrane aperture is 0.005 μm, carries out concentration increasing
The enzyme solution of more than apoenzyme unit of activity 3000U/mg, pH value 5-6 is made in thick processing；By obtained enzyme solution in environment temperature 20
Standing nitrification processing is carried out in DEG C, the time is 4 hours, and compound biological enzyme is made；
（2）The preparation of solid filler：Diatomite, ceramic powder, bentonite in powder and building brick inferior horn powder are passed through into machine respectively
Tool sieves, and obtains the material of grain size 0.1mm；Material through mechanical grading is proportionally mixed, wherein the silicon after screening
Diatomaceous earth, ceramic powder, bentonite in powder and building brick inferior horn powder mass percent be：Diatomite 15%, ceramic powder 10%, swelling
Native powder 20%, building brick inferior horn powder 55%, obtains solid filler, the carrier material as sludge dehydrating agent；
（3）It is prepared by finished product：Calcium chloride and solid filler, and and step are weighed according to mass percent（1）Compound life obtained
Object enzyme is sufficiently mixed uniformly, immobilizes processing, and treatment temperature is 30 DEG C, and processing time is 60 minutes；Then again through drying
Solid granular biological enzyme sludge dehydrating agent is made in processing.
Particular biological enzyme sludge dewatering made from 2kg embodiments 1 is added in the sludge that 1000kg moisture content is about 90%
Agent, after the conditioning dehydration of particular biological enzyme sludge dehydrating agent, moisture percentage in sewage sludge drops to 59.6% by 90%, and conversion volume subtracts
Small by 70% or so, conditioning effect is better than PAC, PAM and Al2(SO4)3。
Embodiment 2
A kind of solid biologic enzyme sludge dehydrating agent, the raw material composition of the dehydrating agent are by mass percentage：Pectase 7%, egg
White enzyme 14%, lipase 15%, cellulase 12%, catalase 7%, amylase 6%, lysozyme 2%, magnesium chloride 8% and solid are filled out
Charge 29%；The raw material of the solid filler includes diatomite, ceramic powder, bentonite in powder and building brick inferior horn powder.
The preparation method of solid biologic enzyme sludge dehydrating agent as described above, specifically includes following steps：
（1）The preparation of compound biological enzyme：By pectase, protease, lipase, cellulase, catalase, amylase and molten
The liquid enzyme of bacterium enzyme is proportionally weighed respectively, is put into tank and is carried out mixing compounding, with the stirring of 50 rev/min
Speed carries out uniform stirring, with after under operating pressure 0.5Mpa, by the ultrafiltration membrane that membrane aperture is 0.015 μm, is concentrated
Thickening is handled, and the enzyme solution of more than apoenzyme unit of activity 3000U/mg, pH value 5-6 is made；By obtained enzyme solution in environment temperature
Standing nitrification processing is carried out in 30 DEG C, the time is 2 hours, and compound biological enzyme is made；
（2）The preparation of solid filler：Diatomite, ceramic powder, bentonite in powder and building brick inferior horn powder are passed through into machine respectively
Tool sieves, and obtains the material of grain size 0.5mm；Material through mechanical grading is proportionally mixed, wherein the silicon after screening
Diatomaceous earth, ceramic powder, bentonite in powder and building brick inferior horn powder mass percent be：Diatomite 20%, ceramic powder 8%, swelling
Native powder 15%, building brick inferior horn powder 57%, obtains solid filler, the carrier material as sludge dehydrating agent；
（3）It is prepared by finished product：Flocculation aid and solid filler, and and step are weighed according to mass percent（1）Compound life obtained
Object enzyme is sufficiently mixed uniformly, immobilizes processing, and treatment temperature is 50 DEG C, and processing time is 30 minutes；Then again through drying
Solid granular biological enzyme sludge dehydrating agent is made in processing.
Particular biological enzyme sludge dewatering made from 3kg embodiments 2 is added in the sludge that 1000kg moisture content is about 95%
Agent, after the conditioning dehydration of particular biological enzyme sludge dehydrating agent, moisture percentage in sewage sludge drops to 58% by 95%, and conversion volume reduces
80% or so, conditioning effect is better than PAC, PAM and Al2(SO4)3。
Embodiment 3
A kind of solid biologic enzyme sludge dehydrating agent, the raw material composition of the dehydrating agent are by mass percentage：Pectase 5%, egg
White enzyme 13%, lipase 15%, cellulase 12%, catalase 5%, amylase 6%, lysozyme 4%, calcium chloride 7%, magnesium chloride
2% and solid filler 31%.
The raw material of the solid filler includes diatomite, ceramic powder, bentonite in powder and building brick inferior horn powder.
The preparation method of solid biologic enzyme sludge dehydrating agent as described above, specifically includes following steps：
（1）The preparation of compound biological enzyme：By pectase, protease, lipase, cellulase, catalase, amylase and molten
The liquid enzyme of bacterium enzyme is proportionally weighed respectively, is put into tank and is carried out mixing compounding, with the stirring speed of 45 rev/min
Degree carries out uniform stirring, with after under operating pressure 0.3Mpa, by the ultrafiltration membrane that membrane aperture is 0.01 μm, carries out concentration thickening
The enzyme solution of more than apoenzyme unit of activity 3000U/mg, pH value 5-6 is made in processing；By obtained enzyme solution in 25 DEG C of environment temperature
In carry out standing nitrification processing, the time is 3 hours, and compound biological enzyme is made；
（2）The preparation of solid filler：Diatomite, ceramic powder, bentonite in powder and building brick inferior horn powder are passed through into machine respectively
Tool sieves, and obtains the material of grain size 0.3mm；Material through mechanical grading is proportionally mixed, wherein the silicon after screening
Diatomaceous earth, ceramic powder, bentonite in powder and building brick inferior horn powder mass percent be：Diatomite 20%, ceramic powder 10%, swelling
Native powder 20%, building brick inferior horn powder 50%, obtains solid filler, the carrier material as sludge dehydrating agent；
（3）It is prepared by finished product：Flocculation aid and solid filler, and and step are weighed according to mass percent（1）Compound life obtained
Object enzyme is sufficiently mixed uniformly, immobilizes processing, and treatment temperature is 40 DEG C, and processing time is 45 minutes；Then again through drying
Solid granular biological enzyme sludge dehydrating agent is made in processing.
Particular biological enzyme sludge made from adding in 2.5kg embodiments 3 in the sludge that 1000kg moisture content is about 93% takes off
Aqua, after the conditioning dehydration of particular biological enzyme sludge dehydrating agent, moisture percentage in sewage sludge drops to 59% by 93%, and volume reduces
85% or so, conditioning effect is better than PAC, PAM and Al2(SO4)3。
Embodiment 4
A kind of solid biologic enzyme sludge dehydrating agent, the raw material composition of the dehydrating agent are by mass percentage：Pectase 7%, egg
White enzyme 16%, lipase 15%, cellulase 13%, catalase 8%, amylase 9%, lysozyme 6%, calcium chloride 6% and solid are filled out
Charge 20%；The raw material of the solid filler includes diatomite, ceramic powder, bentonite in powder and building brick inferior horn powder.
The preparation method of solid biologic enzyme sludge dehydrating agent as described above, specifically includes following steps：
（1）The preparation of compound biological enzyme：By pectase, protease, lipase, cellulase, catalase, amylase and molten
The liquid enzyme of bacterium enzyme is proportionally weighed respectively, is put into tank and is carried out mixing compounding, with the stirring speed of 45 rev/min
Degree carries out uniform stirring, with after under operating pressure 0.4Mpa, by the ultrafiltration membrane that membrane aperture is 0.01 μm, carries out concentration thickening
The enzyme solution of more than apoenzyme unit of activity 3000U/mg, pH value 5-6 is made in processing；By obtained enzyme solution in 28 DEG C of environment temperature
In carry out standing nitrification processing, the time is 3 hours, and compound biological enzyme is made；
（2）The preparation of solid filler：Diatomite, ceramic powder, bentonite in powder and building brick inferior horn powder are passed through into machine respectively
Tool sieves, and obtains the material of grain size 0.2mm；Material through mechanical grading is proportionally mixed, wherein the silicon after screening
Diatomaceous earth, ceramic powder, bentonite in powder and building brick inferior horn powder mass percent be：Diatomite 12%, ceramic powder 8%, swelling
Native powder 20%, building brick inferior horn powder 60%, obtains solid filler, the carrier material as sludge dehydrating agent；
（3）It is prepared by finished product：Flocculation aid and solid filler, and and step are weighed according to mass percent（1）Compound life obtained
Object enzyme is sufficiently mixed uniformly, immobilizes processing, and treatment temperature is 45 DEG C, and processing time is 40 minutes；Then again through drying
Solid granular biological enzyme sludge dehydrating agent is made in processing.
Particular biological enzyme sludge made from adding in 3.5kg embodiments 4 in the sludge that 1000kg moisture content is about 97% takes off
Aqua, after the conditioning dehydration of solid biologic enzyme sludge dehydrating agent, moisture percentage in sewage sludge drops to 60% by 97%, and conversion volume reduces
87% or so, conditioning effect is better than PAC, PAM and Al2(SO4)3。
Solid biologic enzyme sludge dehydrating agent and inorganic medicament dehydration technics comparing.
By 1m3Moisture content is 97% after the concentrated processing of excess sludge, is grouped by adding solid biologic enzymic digestion with adding
Ferric trichloride, lime enter plate and frame filter press dehydration effect experiment respectively, and sludge volume calculates comparison, to illustrate biological enzyme in dirt
Effect in terms of mud dehydration volume reduction.
1st, chemical agent is added
Thickened sludge moisture content 97%, solid content are 1000 × 3%=30kg, and ferric trichloride, lime are added by over dry sludge quantity 30%
Afterwards, sludge solid content is 30+30 × 30%=39kg, and moisture content is reduced to 60% after plate and frame filter press is dehydrated, and volume is kept to（39/
30）×1×3%/（1-60%）=0.0975m3/m3。
2nd, biological enzyme is added
Thickened sludge moisture content 97%, solid content are 1000 × 3%=30kg, and biological enzyme dosage 2kg/m3 passes through the quick work of enzyme
With the content of organic matter reduces in sludge, about reduces solid content 50%, while be by the non-molten carrier that biological enzyme is brought into sludge
1kg, total sludge solid content for 30 ×（1-50%）+ 1=16kg, moisture content is reduced to 60% after plate and frame filter press is dehydrated, and volume is kept to
（16/30）×1×3%/（1-60%）=0.04m3。
3rd, conclusion
By the snap action of enzyme, the content of organic matter reduces in excess sludge, and biological stability improves, and sludge quantity is reduced.Concentration
Dewatered sludge volume is 0.04/0.0975=41% for adding the dewatered sludge volume of ferric trichloride, lime.It can drop significantly
Low follow-up sludge transhipment, landfill disposal expense.
First, medicament uses comparison
By medicament contrast test data and batch service condition, its tune of solid biologic enzyme sludge dehydrating agent provided by the invention
Sludge efficacy time after reason is long（Conditioned sludge, 36 hours of efficacy time）, inputiing mud volume is high, not haftplatte, not closure plate, no
The advantages that useless plate, frangible plate, moisture content reach less than 60%.It is shown in Table 1：
1 Experimental comparison's table of table
2nd, medicament expense compares
2 medicament expense contrast table of table
3rd, using chemical agent dewatering technology of mud there are the problem of：
1st, feeding lime amount and ferric trichloride are added than reaching 26%, not only increase sludge solid content, also result in transport with after
The increase of phase sludge treatment expense；Surface film layer outside sludge is easily generated using polyacrylamide product, the structure inside sludge
Shipwreck is to discharge, and remaining organic matter cell wall is difficult to abolish, point difficult realization high efficiency dehydration；
2nd, the follow-up compost of sludge and incineration disposal are not easy to using lime；
3rd, using lime system and ferric trichloride, our factory also needs to increase Lime-Injecting system and stores ferric trichloride dosing system
Technological transformation expense and maintenance maintenance expense.
4th, lime and ferric trichloride can also increase the maintenance cost of equipment to the strong corrosive of equipment.
Therefore it is not recommended that is produced using traditional handicraft.It is shown in Table 3：
Table 3 uses chemical agent dewatering technology of mud cost disadvantage table
Present inventive concept is novel, and formula is unique, and technique is advanced, dirty with this kind of solid biologic enzyme sludge dehydrating agent catalytic treatment disposition
Mud technology, dehydrating effect is good, and efficient and at low cost, stability is strong, easy to operate, can make the mud decrement after dehydration
Change, stabilize.
Several specific embodiments of the present invention are above are only, but the design concept of the present invention is not limited thereto, all utilizations
This design carries out the present invention change of unsubstantiality, should all belong to the behavior for invading the scope of the present invention.
Claims (10)
1. a kind of solid biologic enzyme sludge dehydrating agent, it is characterised in that：The raw material composition of the dehydrating agent is by mass percentage
For：Pectase 5-15%, protease 5-16%, lipase 8-15%, cellulase 8-13%, catalase 5-8%, amylase 1-
9%th, lysozyme 2-6%, flocculation aid 4-13% and solid filler 20-35%；The sum of mass percent of each raw material components is 100%.
2. solid biologic enzyme sludge dehydrating agent according to claim 1, it is characterised in that：The flocculation aid for calcium chloride and
The mixing of one or both of magnesium chloride.
3. solid biologic enzyme sludge dehydrating agent according to claim 1, it is characterised in that：The raw material of the solid filler
Including diatomite, ceramic powder, bentonite in powder and building brick inferior horn powder.
A kind of 4. method for preparing solid biologic enzyme sludge dehydrating agent as described in claim 1, it is characterised in that：It specifically includes
Following steps：
（1）The preparation of compound biological enzyme：By pectase, protease, lipase, cellulase, catalase, amylase and molten
The liquid enzyme of bacterium enzyme is proportionally weighed respectively, is put into tank and is carried out mixing compounding, uniform stirring is carried out, with after work
Make under pressure 0.1-0.5Mpa, by ultrafiltration membrane, carry out concentration thickening processing, enzyme solution is made；Obtained enzyme solution is carried out quiet
Nitrification processing is put, compound biological enzyme is made；
（2）The preparation of solid filler：Diatomite, ceramic powder, bentonite in powder and building brick inferior horn powder are passed through into machine respectively
Tool sieves, and obtains the material of grain size 0.1-0.5mm；Material through mechanical grading is proportionally mixed, obtains solid
Filler material；
（3）It is prepared by finished product：Flocculation aid and solid filler, and and step are weighed according to mass percent（1）Compound life obtained
Object enzyme is sufficiently mixed uniformly, immobilizes processing, and treatment temperature is 30-50 DEG C, and processing time is 30-60 minutes；Then again
Through being dried, solid granular biological enzyme sludge dehydrating agent is made.
5. the preparation method of solid biologic enzyme sludge dehydrating agent according to claim 4, it is characterised in that：Step（1）In
The mixing speed of the uniform stirring is 40-50 rev/min.
6. the preparation method of solid biologic enzyme sludge dehydrating agent according to claim 4, it is characterised in that：Step（1）In
The membrane aperture of the ultrafiltration membrane is 0.005 μm -0.015 μm.
7. the preparation method of solid biologic enzyme sludge dehydrating agent according to claim 4, it is characterised in that：Step（1）In
Concentrate more than the apoenzyme unit of activity 3000U/mg, pH value 5-6 of enzyme solution made from thickening processing.
8. the preparation method of solid biologic enzyme sludge dehydrating agent according to claim 4, it is characterised in that：Step（1）In
The technological parameter of the nitrification processing is：Treatment temperature is 20-30 DEG C, and processing time is 2-4 hours.
9. the preparation method of solid biologic enzyme sludge dehydrating agent according to claim 4, it is characterised in that：Step（2）In,
Material after mechanical grading is mixed according to following mass percent：Diatomite 10-20%, ceramic powder 8-10%, bentonite in powder 10-
20%, building brick inferior horn powder 50-60%.
10. a kind of application of solid biologic enzyme sludge dehydrating agent as described in claim 1, it is characterised in that：The solid life
Object enzyme sludge dehydrating agent is used for the dehydration of sludge, and detailed process is：Solid biologic enzyme sludge dehydrating agent is added in sludge, Gu
The addition of body biological enzyme sludge dehydrating agent accounts for the 0.2 ~ 0.4% of sludge gross mass.
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| CN110776345A (en) * | 2019-11-13 | 2020-02-11 | 王胧庆 | Sludge treatment process |
| CN111662895A (en) * | 2020-04-30 | 2020-09-15 | 同济大学 | Composite hydrolase and method for sludge dewatering conditioning by using same |
| CN113415976A (en) * | 2021-07-05 | 2021-09-21 | 合肥水泥研究设计院有限公司 | Sludge biological drying conditioner and preparation method thereof |
| CN113461286A (en) * | 2021-08-02 | 2021-10-01 | 江苏道科环境科技有限公司 | Compound enzyme for degrading sludge, preparation method and sludge degradation method |
| CN113548786A (en) * | 2021-06-15 | 2021-10-26 | 唐山钢铁集团有限责任公司 | Novel sludge dehydrating agent and using method thereof |
| CN113880394A (en) * | 2021-08-31 | 2022-01-04 | 海环绿源环保科技(上海)有限公司 | Plant enzyme sludge dehydrating agent and sludge dehydrating method |
| CN114230137A (en) * | 2021-12-01 | 2022-03-25 | 山东尚科环境工程有限公司 | Organic conditioner for municipal sludge drying treatment and preparation method thereof |
| CN114716122A (en) * | 2022-05-06 | 2022-07-08 | 九江学院 | Municipal dewatered sludge solidification process |
| CN115028329A (en) * | 2022-07-11 | 2022-09-09 | 沈阳理工大学 | Comprehensive utilization method and system for thermal catalytic decomposition, separation and drying of sludge flue gas |
| CN115286214A (en) * | 2022-09-13 | 2022-11-04 | 广州晟欣环保材料有限公司 | Preparation method of biological sludge dehydrating agent |
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| CN110776345A (en) * | 2019-11-13 | 2020-02-11 | 王胧庆 | Sludge treatment process |
| CN111662895A (en) * | 2020-04-30 | 2020-09-15 | 同济大学 | Composite hydrolase and method for sludge dewatering conditioning by using same |
| CN113548786A (en) * | 2021-06-15 | 2021-10-26 | 唐山钢铁集团有限责任公司 | Novel sludge dehydrating agent and using method thereof |
| CN113415976B (en) * | 2021-07-05 | 2022-11-04 | 合肥水泥研究设计院有限公司 | Sludge biological drying conditioner and preparation method thereof |
| CN113415976A (en) * | 2021-07-05 | 2021-09-21 | 合肥水泥研究设计院有限公司 | Sludge biological drying conditioner and preparation method thereof |
| CN113461286A (en) * | 2021-08-02 | 2021-10-01 | 江苏道科环境科技有限公司 | Compound enzyme for degrading sludge, preparation method and sludge degradation method |
| CN113880394A (en) * | 2021-08-31 | 2022-01-04 | 海环绿源环保科技(上海)有限公司 | Plant enzyme sludge dehydrating agent and sludge dehydrating method |
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| CN114230137A (en) * | 2021-12-01 | 2022-03-25 | 山东尚科环境工程有限公司 | Organic conditioner for municipal sludge drying treatment and preparation method thereof |
| CN114716122A (en) * | 2022-05-06 | 2022-07-08 | 九江学院 | Municipal dewatered sludge solidification process |
| CN115028329A (en) * | 2022-07-11 | 2022-09-09 | 沈阳理工大学 | Comprehensive utilization method and system for thermal catalytic decomposition, separation and drying of sludge flue gas |
| CN115028329B (en) * | 2022-07-11 | 2023-08-11 | 沈阳理工大学 | Comprehensive utilization method and system for thermal catalytic decomposition, separation and drying of sludge flue gas |
| CN115286214A (en) * | 2022-09-13 | 2022-11-04 | 广州晟欣环保材料有限公司 | Preparation method of biological sludge dehydrating agent |
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Application publication date: 20180608 |