CN108190976A - A kind of waste water treating agent, preparation method and its application method - Google Patents
A kind of waste water treating agent, preparation method and its application method Download PDFInfo
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- CN108190976A CN108190976A CN201711478518.6A CN201711478518A CN108190976A CN 108190976 A CN108190976 A CN 108190976A CN 201711478518 A CN201711478518 A CN 201711478518A CN 108190976 A CN108190976 A CN 108190976A
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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
- C02F1/00—Treatment of water, waste water, or sewage
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46176—Galvanic cells
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic 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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
Abstract
The present invention relates to a kind of waste water treating agent, preparation method and its application methods, and including being made of compound A and compound B, the compound A includes each component of following parts by weight：20 parts of iron carbon ball particle；10 parts of citric acid；The compound B includes each component of following parts by weight：30 parts of sodium peroxydisulfate；20 parts of cladded type potassium ferrate；10 parts of lime；10 parts of diatomite；The mass ratio of the compound A and compound B is 1：2~6；In addition, preparation method and application method the present invention also provides the waste water treating agent.The waste water treating agent prepared according to the present invention and its method for carrying out wastewater treatment can effectively shorten the processing time of waste water, improve the degradation rate of each substance in waste water.
Description
Technical field
The present invention relates to purifying water process technologies, and in particular to a kind of waste water treating agent, preparation method and its application method.
Background technology
With China's urbanization and industrialized development, urban wastewater discharge is continuously improved, into the organic matter of water body
Value volume and range of product sharply increase, cause the serious pollution of water resource.Persistent organic pollutant wastewater is contained for those,
Traditional biological treatment has been unable to meet processing requirement, needs to further use significantly more efficient method.
At present, it is advanced oxidation processes to handle persistent organic pollutants most efficient method in waste water, so-called depth oxygen
Change technology refers to the water technology of the quick exhaustive oxidation organic matter of free radical (such as OH) generated using advanced oxidation agent,
Feature is exactly the generation and participation of a large amount of free radicals, and reaction speed is fast and processing is thorough, will not generate disinfection by-products
(DBPs).The advanced oxidation agent applied at present mainly has Fenton (Fenton) reagent, sodium peroxydisulfate, potassium ferrate etc..
The oxidisability of Fenton reagent is strong, but is only applicable to acid waste water (pH2~4), and there are catalyst (Fe2+) consumption is big, it is double
The problems such as oxygen water use efficiency is low；Oxidisability is better than alkaline condition to sodium peroxydisulfate in acid condition and stability is good, the scope of application
Extensively, but need by catalyst, such as transition metal, heat, ultraviolet light activation process, could be formed potentiometric titrations (
SO4-), there are catalyst utilization is low, secondary pollution problems.Potassium ferrate is a kind of to integrate oxidation, absorption, flocculation
High-efficiency multi-function water treatment agent, reaction product are iron oxide or iron hydroxide, will not cause secondary pollution, but potassium ferrate
Oxidation selectivity is poor in sewage disposal process, and the poisonous and harmful substances only around potassium ferrate can be aoxidized, remaining
Potassium ferrate can react with hydrone, there are water treatment efficiency unobvious, use value reduce the problems such as.In addition, into
Row wastewater treatment also has iron Carbon Materials microelectrolysis processing method (also known as Inner electrolysis, Zero-valence Iron Process etc.) using more method, is one
Kind forms numerous small primary batteries by iron and charcoal, and reduction, the oxidation of free hydrogen and active oxygen are generated by cell reaction
The method of degradable organic pollutant has many advantages, such as that simple process and low cost is honest and clean.
But any method for treating water is single use, the treatment effect reached is general；And due to distinct methods
There is chemical reaction between treatment agent and medicament is caused to fail so that treatment effeciency reduces during a variety of method combinations；It is and a variety of
It can not often be compounded between medicament when method is combined, waste water can only be made to use successively by the way of processing of offeing medicine successively
Different medicaments are handled, cumbersome, inefficiency, and need to consume a large amount of human and material resources, and processing cost is high.
Invention content
The defects of to overcome the prior art, the present invention provides a kind of waste water treating agent, preparation method and its application methods.
To achieve these goals, the technical solution that the present invention takes is as follows：
Technical solution one：
A kind of waste water treating agent is made of compound A and compound B,
The compound A includes each component of following parts by weight：
20 parts of iron carbon ball particle；
10 parts of citric acid；
The compound B includes each component of following parts by weight：
The mass ratio of the compound A and compound B is 1：2~6.
Further, the lime is selected from one or both of quick lime, white lime；
The cladding wall material of the cladded type potassium ferrate is selected from paraffin, one or more of polyethylene wax, grain wax.
Further, it is prepared by following methods：
Step 1 weighs iron carbon ball particle and citric acid by weight, is uniformly mixed to get compound A；
Step 2 after diatomite is activated, weighs sodium peroxydisulfate, slow-release potassium ferrate, lime and diatom by weight
Soil is uniformly mixed to get compound B；
Step 3 after weighing compound A and compound B in proportion, compound A and compound B is packed respectively, stored up
It deposits, you can.
Further, the compound B further includes 5 parts of carboxymethyl cellulose；1 part of polyethylene glycol, 20 parts of ethyl cellulose,
5 parts of acidic effervescent agent, 2.5 parts of basic effervescent agent, 10 parts of paraffin wax, 2 parts of ammonium chloride, 0~2.5 part of sodium bicarbonate.
Further, the acidic effervescent agent be selected from citric acid, tartaric acid, oxalic acid, maleic acid, fumaric acid, succinic acid,
One or more of adipic acid；
The basic effervescent agent is in sodium bicarbonate, sodium carbonate, saleratus, potassium carbonate, calcium carbonate, ammonium hydrogencarbonate
It is one or more of.
Further, it is prepared by following methods：
Step 1：Prepare compound A
Iron carbon ball particle and citric acid are weighed by weight, are uniformly mixed to get compound A；
Step 2：Prepare compound B
Step 2-1, each raw material is weighed by weight, takes the 1/2 of calcium oxide and cladded type potassium ferrate gross mass, with carboxylic first
After mixing, granulation obtains core material particles for base cellulose and polyethylene glycol；
Step 2-2, take ethyl cellulose total amount 1/3 add in hexane solution in, be heated to reflux, treat ethyl cellulose into
After clear solution, after adding in the diatomite after activation, sodium peroxydisulfate, acidic effervescent agent and basic effervescent agent, be dispersed with stirring to
It after uniformly, is sprayed in core material particles, dries or dries removal n-hexane, obtain internal coating particle；
Step 2-3, after paraffin wax being heated to 80 degrees Celsius of thawings, ammonium chloride is added in while stirring, after being uniformly dispersed,
It is sprayed on internal coating particle, cools down to get paraffin coated particle；
Step 2-4, remaining ethyl cellulose is added in hexane solution, be heated to reflux, treat ethyl cellulose into saturating
After bright solution, remaining cladded type potassium ferrate is added in, after selectively adding sodium bicarbonate, is dispersed with stirring to uniform, then sprays
It is applied on paraffin coated particle, dries or dries removal n-hexane to get compound B；
Step 3: mixing：
Compound A made from step 1 and compound B made from step 2 are weighed in proportion, are uniformly mixed to get waste water
Inorganic agent.
Technical solution two：
A kind of application method of waste water treating agent, includes the following steps：
The compound A of 0.2~0.4Kg is corresponded to by every liter of waste water first, compound A is uniformly put into waste water, stirring is anti-
7 should be more than or equal to pH；
Then, the compound B of 0.6~0.8Kg is corresponded to by every liter of waste water, is uniformly added into 70Kg compound B thereto, is stirred
After reaction to potassium ferrate consumption completely in waste water, 2~3 days are stood；.
Technical solution three：
A kind of application method of waste water treating agent, includes the following steps：
The compound A of 0.2~0.4Kg, the compound B of 0.6~0.8Kg are corresponded to according to every liter of waste water, by compound A, again
It closes object B to put into waste water together, after being stirred to react for 24 hours, stands 2~3 days；.
Technical solution four：
A kind of application method of waste water treating agent, includes the following steps：
According to the waste water treating agent that 1.3~1.8Kg is put into every liter of waste water, the waste water treating agent is put into waste water,
After being stirred to react for 24 hours, 2~3 days are stood；.
Compared with prior art, having the beneficial effect that acquired by the present invention：
1st, the present invention joins iron carbon electrolysis, sodium peroxydisulfate oxidizing process, potassium ferrate oxidizing process, kieselguhr adsorption flocculence
Close applied to waste water processing in, and by after sodium peroxydisulfate, potassium ferrate, tripolite compound are matched under alkaline condition to iron carbon
Waste water after electrolysis is handled, hence it is evident that enhances the treatment effect of waste water, reason may be sodium peroxydisulfate in alkaline condition
Under more suitable for organic substances such as degradation of ammonia nitrogen, total phosphorus and total nitrogens, it is also possible to sodium peroxydisulfate exist and potassium ferrate generate association
Same-action reduces Fe2+Influence to potassium ferrate, in addition, the presence of calcium oxide makes Fe3+Generate FeOH3Colloid, and diatomite
Presence, promote FeOH3The flocculation sediment of colloid, so as to reduce Fe3+Catalytic action to high ferro acidolysis.
2nd, after the present invention matches iron carbon ball particle, citric acid, sodium peroxydisulfate, potassium ferrate, calcium oxide, tripolite compound, one
It rises in input waste water, carries out wastewater treatment, during using this method, when iron content carbon ball particle encounters calcium oxide alkaline matter, iron
The H that carbon electrolysis generates+With OH-Neutralization reaction occurs, can theoretically reduce the treatment effect of iron carbon particle, and when high ferro acidolysis is met
The Fe generated to iron carbon2+When, potassium ferrate meeting and Fe2+Redox reaction occurs, the activity of high ferro acidolysis is reduced, in addition, Fe2 +It is oxidized to Fe3+Afterwards, Fe3+Presence can also promote the decomposition of potassium ferrate, therefore theoretically the treatment effect of this method can be sent out
Life is decreased obviously, but is proved through experiment is unexpected, during using this method, NH3The treatment effect of-N, TP and TN do not drop
It is low, and the treatment effect of COD and SS slightly improves, and may be to be deposited in iron carbon ball particle, sodium peroxydisulfate and high ferro acidolysis
In synergistic effect to a certain degree, even if under there are various unfavorable conditions, preferable treatment effect still can be kept.
3rd, the present invention by potassium ferrate, sodium peroxydisulfate, diatomite and calcium oxide carry out layering cladding compound B is made after
It is compounded to put into waste water together with iron carbon ball particle and citric acid and be used, in the processing procedure of waste water, compound B is most
Outer layer is disintegrated first, and part potassium ferrate is dissolved in waste water, is acted synergistically with iron carbon ball particle, with cell reaction into
Row when the pH of waste water is improved to alkaline condition, accelerates reacting for ammonium chloride and alkali, leads to the dissolving of the paraffin layer of compound B
Hole is formed, so that in waste water infiltration to the internal coating of compound B, acidic effervescent agent and alkalinity in internal coating steep
Rise agent meet occur after waste water dissolving acid-base neutralization reaction generate it is a large amount of other so that internal coating is disintegrated, will aoxidize
Calcium, sodium peroxydisulfate and diatomite are dissolved in waste water, while also will gradually be dissolved after core material particles moisture absorption, and high ferro acidolysis is slowly released
It puts, the presence of sodium peroxydisulfate is on the one hand by Fe remaining in waste water2+It is oxidized to Fe3+, reduce Fe2+Between potassium ferrate
Reaction probabilities, another convenience act synergistically with high ferro acidolysis, reduce potassium ferrate decomposition failure when itself is collided
Probability；And quick lime (main component is calcium oxide) meets when water generates calcium hydroxide and generates a large amount of heat, promotes persulfuric acid
The activation of sodium, in addition, calcium oxide and OH-Also with Fe3+React the FeOH of generation3There is the suspended matter in waste water in colloid
There is adsorption-flocculation effect, enhance the handling rate of suspended matter in waste water, and diatomite is in addition to can be other than adsorption-flocculation suspended matter, also
It can promote FeOH3The precipitation of colloid reduces Fe3+To the catalyticing decomposition action of potassium ferrate, therefore, this method can be by iron carbon
Synergistic effect in ball particle, sodium peroxydisulfate and high ferro acidolysis performs to ultimate attainment, and reduces Fe2+And Fe3+To potassium ferrate
And influence of the calcium oxide to iron carbon ball particle, so as to which treatment effect be made to reach best.
4th, compound B of the present invention by be layered the method for cladding reduce it is several and what is inactivated because of chemical reaction between each substance
Rate, and the synergistic effect between substance is enhanced, in addition, compound B of the present invention adds in sodium bicarbonate, bicarbonate in outermost layer
Sodium reacts a large amount of bubbles of generation with acid waste water (waste water can be adjusted to acidity by the citric acid in compound A), so as to promote
The outermost disintegrations of compound B, and internal coating and outermost layer are effectively separated by the setting of paraffin layer, are collapsed in outermost layer
Internal clad layer-forming is protected during solution, is added in ammonium chloride in paraffin layer, can be caused paraffin layer shape when reaching suitable condition
Into hole, enter internal coating for waste water；So as to which the disintegration of internal coating be promoted to dissolve out, so as to make internal coating and core material
Substance in grain is dissolved out, and is participated in wastewater treatment.
5th, potassium ferrate of the present invention reaches the slow release effect of potassium ferrate using cladded type potassium ferrate, extends high ferro
Time of the sour potassium in waste water, so as to enhance the effect of wastewater treatment.
The waste water treating agent prepared according to the present invention and its method for carrying out wastewater treatment can effectively shorten the place of waste water
Time, the degradation rate for improving each substance in waste water are managed, enhances the effect of wastewater treatment.
Specific embodiment
Further details of narration is carried out to the present invention with reference to embodiments.
The preparation method of iron carbon ball particle：First by iron powder, activated carbon, graphite, calcium carbonate powder, bentonite and concave convex rod
Soil is according to mass ratio 6：2：0.5：0.5：0.5：1 ratio is mixed evenly, and after carrying out wet granulation, dries, be sieved to obtain raw material
Particle；Then the feed particles of gained are transferred in tube furnace, under nitrogen protection, 6h are sintered at a temperature of 800 DEG C, formed
Iron carbon ball particle.Wherein, calcium carbonate powder can reduce the degradation energy of organic matter, bentonite and attapulgite during the reaction
The hardened of iron carbon ball particle can be slowed down.
The preparation method of cladded type potassium ferrate：Using polyethylene wax as cladding wall material, polyethylene wax first is heated to 150 and takes the photograph
After family name's degree melts, by polyethylene wax and potassium ferrate 1：1, add in potassium ferrate, ultrasonic disperse 2h to uniform, then absorption dispersion
There is the polyethylene wax solution of potassium ferrate, instill in 1~4 degree Celsius of cold water rapidly after being cooled down, drying, be ground brokenly
It is broken, after crossing 150 mesh sieve, save backup that (after testing, the content of potassium ferrate is in the cladded type potassium ferrate in drier
50%).
Diatomaceous activation method：The 0.5mL concentrated sulfuric acids are corresponded to by every gram of diatomite first, the concentrated sulfuric acid is added to diatomite
In after, it is clean to concentrated sulfuric acid volatilization in roasting on electromagnetic oven, then in being placed in 500 degrees Celsius of calcination 15min in Muffle furnace；Treat silicon
Diatomaceous earth is cooled to room temperature, by diatomite and the mass volume ratio 1g of dilute sulfuric acid：10mL is added in into the diatomite after cooling
The dilute sulfuric acid of 0.2mol/L after stirring 1h is cleaned (basic anhydride) under 50~60 degrees Celsius, is adopted and is washed with distilled water
To neutrality, 80 mesh sieve is crossed in drying, spare.Diatomite porosity after this method activates is more than 90%, and iron oxide is less than
0.5%, alumina content 1%.
Embodiment 1
A kind of waste water treating agent is made of compound A and compound B,
The compound A includes each component of following parts by weight：
Iron carbon ball particle 20Kg；
Citric acid 10Kg；
The compound B includes each component of following parts by weight：
The mass ratio of the compound A and compound B is 1：2.33.
Preparation method is：
Step 1 weighs iron carbon ball particle 20Kg and citric acid 10Kg, is uniformly mixed to get compound A；
Step 2, after diatomite is activated, weigh sodium peroxydisulfate 30Kg, slow-release potassium ferrate 20Kg, quick lime 10Kg and
Diatomite 10Kg is uniformly mixed to get compound B；
The mass ratio of step 3, the compound A and the compound B is 1：2.33, weigh compound A and compound B
Afterwards, it packed, stored respectively, you can.
Its application method is：
The compound A of 0.3Kg is corresponded to by every liter of waste water first, the compound A of 15Kg is uniformly put into the waste water of 50L,
It is stirred to react to pH and is more than or equal to 7；
Then, the compound B of 0.7Kg is corresponded to by every liter of waste water, (it is big to refer to the pH after compound A processing here thereto
In the waste water equal to 7) be uniformly added into 35Kg compounds B (after testing in compound B described in 35Kg the content of potassium ferrate for 5Kg,
The content of sodium peroxydisulfate is 15Kg), after potassium ferrate consumption completely is stirred to react into waste water, stand 2~3 days；.
The potassium ferrate consumes complete endpoint method：Using high ferro in chromite titration measuring waste water
The content of sour potassium, when potassium ferrate is can not detect, as potassium ferrate consumption is complete.
Embodiment 2
A kind of waste water treating agent is made of compound A and compound B,
The compound A includes each component of following parts by weight：
Iron carbon ball particle 20Kg；
Citric acid 10Kg；
The compound B includes each component of following parts by weight：
The mass ratio of the compound A and compound B is 1：2.33.
Preparation method is：
Step 1 weighs iron carbon ball particle 30Kg and citric acid 10Kg, is uniformly mixed to get compound A；
Step 2, after diatomite is activated, weigh sodium peroxydisulfate 30Kg, slow-release potassium ferrate 20Kg, quick lime 10Kg and
Diatomite 10Kg is uniformly mixed to get compound B；
The mass ratio of step 3, the compound A and the compound B is 1：2.33, weigh compound A and compound B
Afterwards, it packed, stored respectively, you can.
Its application method is：
The compound B of compound A, 0.7Kg of 0.3Kg are corresponded to according to every liter of waste water, by compound A, 35Kg of 15Kg
Compound B (content of potassium ferrate is 5Kg in compound B described in 35Kg after testing, and the content of sodium peroxydisulfate is 15Kg) is together
It puts into the waste water of 50L, after being stirred to react for 24 hours (potassium ferrate and sodium peroxydisulfate consume completely at this time), stands 2~3 days；I.e.
It can.
Embodiment 3
A kind of waste water treating agent is made of compound A and compound B,
The compound A includes each component of following parts by weight：
Iron carbon ball particle 20Kg；
Citric acid 10Kg；
The compound B includes each component of following parts by weight：
The mass ratio of the compound A and compound B is 1：3.97.
Preparation method is：
Step 1：Prepare compound A
Iron carbon ball particle 20Kg and citric acid 10Kg are weighed, is uniformly mixed to get compound A；
Step 2：Prepare compound B
Step 2-1,1/2, i.e. 10Kg of each raw material, preparing quick lime 10Kg and cladded type potassium ferrate total weight are weighed, with
After mixing, granulation obtains core material particles by carboxymethyl cellulose 5Kg and polyethylene glycol 1Kg；
Step 2-2, by ethyl cellulose and the mass volume ratio 1kg of n-hexane：1L, by the 1/ of ethyl cellulose total weight
3 i.e. 7Kg, adds in the hexane solution of 7L, is heated to reflux in 55 C water baths, treat ethyl cellulose into clear solution
Afterwards, diatomite 10Kg, sodium peroxydisulfate 30Kg, acidic effervescent agent, that is, citric acid 5Kg and basic effervescent agent carbon after activation are added in
It after sour hydrogen sodium 2.5Kg, is dispersed with stirring to uniform, is then sprayed in core material particles, dry or dry removal n-hexane, obtain individual layer
Coated particle；
Step 2-3, after 10Kg paraffin waxs being heated to 80 degrees Celsius of thawings, ammonium chloride 2Kg, dispersion are added in while stirring
After uniformly, it is sprayed on individual layer coated particle, cools down to get double-coating particle；
Step 2-4, by ethyl cellulose and the mass volume ratio 1kg of n-hexane：1L, by by remaining 14Kg ethyl celluloses
Element is added in the hexane solution of 14L, is heated to reflux in 55 C water baths, after ethyl cellulose into after clear solution, is added
After entering remaining 10Kg cladded types potassium ferrate and 2.5Kg sodium bicarbonates, it is dispersed with stirring to uniform, is then sprayed at double-coating
On particle, dry or dry removal n-hexane to get compound B；
Step 3: mixing：
The mass ratio of the compound A and compound B is 1：3.97, weigh compound A made from step 1 and step
Compound B made from rapid two is uniformly mixed to get waste water treating agent.
Its application method is：
According to the waste water treating agent that 1.49Kg is put into every liter of waste water, waste water treating agent 74.5Kg manufactured in the present embodiment is taken
(content of potassium ferrate is 5Kg in waste water treating agent described in 74.5Kg after testing, and the content of sodium peroxydisulfate is 15Kg), input
In the waste water of 50L, after being stirred to react (potassium ferrate and sodium peroxydisulfate consume completely at this time) for 24 hours, 2~3 days are stood；.
Comparative example 1：
A kind of waste water treating agent includes each component of following parts by weight：
Iron carbon ball particle 20Kg；
Citric acid 10Kg.
Preparation method is：
Weigh iron carbon ball particle 20Kg and citric acid 10Kg, be uniformly mixed to get.
Its application method is：
The waste water treating agent of 0.3Kg is corresponded to by every liter of waste water, waste water treating agent made from the present embodiment of 15Kg is uniform
It puts into the waste water of 50L, after being stirred to react for 24 hours, stands 2~3 days, you can.
Comparative example 2：
A kind of waste water treating agent includes each component of following parts by weight：
Sodium peroxydisulfate 30Kg；
Ferrous sulfate 5Kg.
Preparation method is：
Sodium peroxydisulfate 30Kg and ferrous sulfate heptahydrate 9.14Kg (equivalent ferrous sulfate is 5Kg) are weighed, is uniformly mixed, i.e.,
.
Its application method is：
The pH of waste water is adjusted to acidity first, the waste water treating agent of 0.39Kg is then corresponded to by every liter of waste water, by 19.5Kg
The present embodiment made from waste water treating agent (after testing in waste water treating agent described in 19.5Kg sodium peroxydisulfate content be 15Kg)
Uniformly in the waste water of input 50L, after being stirred to react for 24 hours, 2~3 days are stood, you can.
Comparative example 3：
A kind of waste water treating agent includes each component of following parts by weight：
Cladded type potassium ferrate 20Kg；
Quick lime 10Kg；
Preparation method is：
Weigh cladded type potassium ferrate 20Kg and quick lime 10Kg, be uniformly mixed to get.
Its application method is：
The waste water treating agent of 0.3Kg is corresponded to by every liter of waste water, by waste water treating agent made from the present embodiment of 15Kg (through inspection
The content for surveying potassium ferrate in waste water treating agent described in 15Kg is 5Kg) uniformly put into the waste water of 50L, after being stirred to react for 24 hours,
Stand 2~3 days, you can.
Comparative example 4
A kind of waste water treating agent is diatomite.
Its application method is：
After diatomite is activated, the waste water treating agent diatomite of 0.1Kg is corresponded to by every liter of waste water, weighs the uniform throwing of 5Kg
In the waste water for entering 50L, after being stirred to react for 24 hours, 2~3 days are stood, you can.
Comparative example 5
A kind of waste water treating agent includes each component of following parts by weight：
Its application method is：
Step 1 corresponds to the iron carbon ball particle of 0.2Kg and the citric acid of 0.1Kg by every liter of waste water, by the iron carbon ball of 10Kg
The citric acid of particle and 5Kg are put into the waste water of 50L together；Fe is stirred to react into waste water2+Concentration reach 0.1Kg/L (this
When detection waste water pH for acidity)；
Step 2 is corresponded to the iron carbon ball particle of 0.3Kg by every liter of waste water, is uniformly put into sodium peroxydisulfate 15Kg thereto, is stirred
Mixing reaction, the reaction was complete to sodium peroxydisulfate in waste water；
Step 3 corresponds to the cladded type potassium ferrate of 0.2Kg and the quick lime of 0.1Kg by every liter of waste water, puts into thereto
The cladded type potassium ferrate of 10Kg and the quick lime of 5Kg, being stirred to react into waste water potassium ferrate, the reaction was complete；
Step 4 after diatomite is activated, the diatomite of 0.1Kg is corresponded to by every liter of waste water, puts into diatomite thereto
5Kg after being stirred to react for 24 hours, stands 2~3 days, you can.
Effect example 1
Waste water is same batch waste water (original pH is 8) used by Examples 1 to 3 and comparative example 1~5, to waste water
Before processing measures COD COD, ammonia nitrogen NH3-N, total phosphorus TP, total nitrogen TN and the ss suspended solid of waste water first；Then distinguish
The waste water treating agent and the method prepared with Examples 1 to 3 and comparative example 1~5 handles waste water, after treatment,
COD COD, the ammonia nitrogen NH of processed waste water are measured again3- N, total phosphorus TP, total nitrogen TN and ss suspended solid；And it counts respectively
Calculate COD COD, ammonia nitrogen NH3- N, total phosphorus TP, total nitrogen TN and ss suspended solid removal rate；It the results are shown in Table 1；
The numerical value measured before removal rate=(numerical value measured after the numerical value-processing measured before untreated )/untreated ×
100%；
Wherein, the measure of COD COD value uses potassium dichromate method, referring specifically to GB11914-89；
Ammonia nitrogen NH3The measure of-N is using formula reagent spectrophotometry is received, referring specifically to HJ535-2009；
The measure of total phosphorus TP uses ammonium molybdate spectrophotometric method, referring specifically to GB 11893-89；
The measure of total nitrogen TN clears up ultraviolet spectrophotometry using alkaline chitinase, referring specifically to GB11894-89；
The measure of suspended matter uses gravimetric method, referring specifically to GB11901-85；
As can be known from the table data：Comparative example 1~4 is individually handled waste water using any waste water treating agent, is imitated
Fruit not as good as comparative example 4 using various ways successively to wastewater treatment by the way of, still, comparative example 4 is again apparent not as good as embodiment
1, it was therefore concluded that：In a manner that sodium peroxydisulfate, potassium ferrate, diatomite and calcium oxide are compounded, in alkalinity
Under the conditions of, waste water is handled, and the electrolysis of iron carbon is coordinated successively to use, compared with sodium peroxydisulfate individually to be carried out to waste water in acid condition
The comparative example 4 of processing, the treatment effect of waste water are apparent；However, in embodiment 2, when iron content carbon ball particle encounters oxidation calc-alkaline
During substance, the H of iron carbon electrolysis generation+With OH-Neutralization reaction occurs, can theoretically reduce the treatment effect of iron carbon particle, and when height
Ferrous acid solution encounters the Fe of iron carbon generation2+When, with Fe2+ redox reaction can occur for potassium ferrate, reduce the work of high ferro acidolysis
Property, in addition, Fe2+It is oxidized to Fe3+Afterwards, Fe3+Presence can also promote the decomposition of potassium ferrate, therefore theoretically embodiment 2
Treatment effect can be decreased obviously, but realizing proves, embodiment 2 is to NH3The treatment effect and embodiment 1 of-N, TP and TN
Quite, and the treatment effect of COD and SS better than embodiment 1, may be in iron carbon ball particle, sodium peroxydisulfate and high ferro acidolysis
In the presence of synergistic effect to a certain degree；And compound B is carried out layering cladding by embodiment 3, make iron carbon ball particle, sodium peroxydisulfate with
And the synergistic effect in high ferro acidolysis performs to ultimate attainment, and reduces Fe2+And Fe3+To potassium ferrate and calcium oxide to iron carbon
The influence of ball particle, therefore, the treatment effect in each embodiment and comparative example of embodiment 3 are best.
Embodiment described above is merely a preferred embodiment of the present invention, and the simultaneously exhaustion of the feasible implementation of non-present invention.It is right
For persons skilled in the art, under the premise of without departing substantially from the principle of the invention and spirit to any aobvious made by it and
The change being clear to should be all contemplated as falling within the claims of the present invention.
Claims (9)
1. a kind of waste water treating agent, which is characterized in that it is made of compound A and compound B,
The compound A includes each component of following parts by weight：
20 parts of iron carbon ball particle；
10 parts of citric acid；
The compound B includes each component of following parts by weight：
The mass ratio of the compound A and compound B is 1：2~6.
2. a kind of waste water treating agent according to claim 1, which is characterized in that the lime is selected from quick lime, white lime
One or both of；
The cladding wall material of the cladded type potassium ferrate is selected from paraffin, one or more of polyethylene wax, grain wax.
3. a kind of waste water treating agent according to claim 1, which is characterized in that prepared by following methods：
Step 1 weighs iron carbon ball particle and citric acid by weight, is uniformly mixed to get compound A；
Step 2 after diatomite is activated, weighs sodium peroxydisulfate, cladded type potassium ferrate, lime and diatomite by weight, mixes
It closes uniformly to get compound B；
Step 3 after weighing compound A and compound B in proportion, compound A and compound B is packed respectively, stored, i.e.,
It can.
4. a kind of waste water treating agent according to claim 1, which is characterized in that the compound B further includes carboxymethyl fibre
5 parts of dimension element；1 part of polyethylene glycol, 20 parts of ethyl cellulose, 5 parts of acidic effervescent agent, 2.5 parts of basic effervescent agent, paraffin wax 10
Part, 2 parts of ammonium chloride, 0~2.5 part of sodium bicarbonate.
5. a kind of waste water treating agent according to claim 4, which is characterized in that the acidic effervescent agent be selected from citric acid,
One or more of tartaric acid, oxalic acid, maleic acid, fumaric acid, succinic acid, adipic acid；
The one kind of the basic effervescent agent in sodium bicarbonate, sodium carbonate, saleratus, potassium carbonate, calcium carbonate, ammonium hydrogencarbonate
It is or several.
6. a kind of waste water treating agent according to claim 4 or 5, which is characterized in that prepared by following methods：
Step 1：Prepare compound A
Iron carbon ball particle and citric acid are weighed by weight, are uniformly mixed to get compound A；
Step 2：Prepare compound B
Step 2-1, each raw material is weighed by weight, the 1/2 of lime and cladded type potassium ferrate total weight is taken, with carboxymethyl cellulose
After mixing, granulation obtains core material particles for element and polyethylene glycol；
Step 2-2, it takes the 1/3 of ethyl cellulose total weight to add in hexane solution, is heated to reflux, treats ethyl cellulose into saturating
After bright solution, after adding in the diatomite after activation, sodium peroxydisulfate, acidic effervescent agent and basic effervescent agent, it is dispersed with stirring to equal
It after even, is sprayed in core material particles, dries or dries removal n-hexane, obtain internal coating particle；
Step 2-3, after paraffin wax being heated to 80 degrees Celsius of thawings, ammonium chloride is added in while stirring, after being uniformly dispersed, spraying
In on internal coating particle, cool down to get paraffin coated particle；
Step 2-4, remaining ethyl cellulose is added in hexane solution, be heated to reflux, treat ethyl cellulose into transparent molten
After liquid, remaining cladded type potassium ferrate is added in, after selectively adding sodium bicarbonate, is dispersed with stirring to uniform, is then sprayed at
On paraffin coated particle, dry or dry removal n-hexane to get compound B；
Step 3: mixing：
Compound A made from step 1 and compound B made from step 2 are weighed in proportion, are uniformly mixed to get wastewater treatment
Agent.
7. a kind of application method of waste water treating agent as claimed in claim 3, which is characterized in that include the following steps：
The compound A of 0.2~0.4Kg is corresponded to by every liter of waste water first, compound A is uniformly put into waste water, be stirred to react to
PH is more than or equal to 7；
Then, the compound B of 0.6~0.8Kg is corresponded to by every liter of waste water, is uniformly added into compound B thereto, is stirred to react to useless
In water after potassium ferrate consumption completely, 2~3 days are stood；.
8. the application method of the waste water treating agent described in a kind of claim 3, which is characterized in that include the following steps：
The compound A of 0.2~0.4Kg, the compound B of 0.6~0.8Kg are corresponded to according to every liter of waste water, by compound A, compound B
It puts into waste water together, after being stirred to react for 24 hours, stands 2~3 days；.
9. the application method of the waste water treating agent described in a kind of claim 6, which is characterized in that include the following steps：
According to the waste water treating agent that 1.3~1.8Kg is put into every liter of waste water, the waste water treating agent is put into waste water, stirring
After reaction for 24 hours, 2~3 days are stood；.
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| CN111115776A (en) * | 2020-01-04 | 2020-05-08 | 山东得和明兴生物科技有限公司 | Novel environment-friendly sterilization deodorant and preparation method thereof |
| CN115159650A (en) * | 2022-07-12 | 2022-10-11 | 山东三加环保新材料有限公司 | Efficient sewage treatment agent and preparation process thereof |
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