CN105776364A - Preparation method of municipal sewage treating agent - Google Patents
Preparation method of municipal sewage treating agent Download PDFInfo
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- CN105776364A CN105776364A CN201610132286.8A CN201610132286A CN105776364A CN 105776364 A CN105776364 A CN 105776364A CN 201610132286 A CN201610132286 A CN 201610132286A CN 105776364 A CN105776364 A CN 105776364A
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- municipal wastewater
- inorganic agent
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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
Abstract
The invention provides a preparation method of a municipal sewage treating agent.The method comprises the steps of firstly, picking dry straw, pulverizing the straw, adding a solution of sodium cyanoborohydride, ammonium ceric nitrate and gelatin, mixing the materials to be uniform, raising the temperature, then adding poly(ethyl acrylate), polyacrylonitrile and glutaraldehyde, raising the temperature, lowering the temperature, and conducting filtering, so that solid matter is obtained; then adding etidronic acid and polyhydric alcohol phosphate ester to water, conducting stirring, adding isothiazolinone, sepiolite, starch xanthate, magnesium sulfate heptahydrate, chitosan, N, N-dimethyl methylene diphosphonic acid, lecithin and lignin, and mixing the materials to be uniform, so that a mixture (I) is obtained; finally, adding a sodium hydroxide solution to the mixture (I) to adjust pH to 6.0-7.0, adding organic acid and the obtained solid matter, mixing the materials to be uniform, and then leaving the mixture standing still, so that the municipal sewage treating agent is obtained.By means of the municipal sewage treating agent, the chemical oxygen demand of sewage can be lowered to 63 mg/L, the biochemical oxygen demand can be lowered to 28 mg/L, suspended solids can be decreased to 35 mg/L, and total phosphorus can be decreased to 0.37 mg/L.
Description
Technical field
The invention belongs to sewage-treating agent technical field, be specifically related to the preparation method of a kind of municipal wastewater inorganic agent.
Background technology
China is the country of a shortage of water resources, and water resource of per capita is only the 1/4 of the world, and the distribution of water resource
Serious uneven, how to alleviate the problem such as water resources shortage and pollution and have become as an instant problem.Solve to lack
Water problems, beyond source throttling, comprehensive utilization, pollution treatment has been increasingly becoming one of basic principle that China must adhere to for a long time.
Municipal wastewater in use adds and much pollutes impurity, containing more Organic substance, inorganic ion, ammonia
Nitrogen, phosphate and microorganism etc., so need to consider such as microorganism excess growth, foaming, calcium phosphate scale deposition in processing procedure
And the problem such as ammonia nitrogen.
At present, process municipal wastewater and mainly have the multiple methods such as physics, chemistry, biology.Physical method is i.e. divided by physics
Reclaiming the undissolved suspended contaminant in sewage from effect, this mode can be divided into Gravity Separation, centrifugation etc., though method
So simple, but based process can only be done, process not exclusively, have that treatment effect is the best, handling rate instability problem more.Biological
Facture is that the metabolism by microorganism makes the organic pollution of dissolving, colloid and suspended state in sewage be converted into stably
Harmless object, but the method equipment investment is big, and operating cost is high, and is difficult to heavy-metal ion removal, and winter is also not suitable for behaviour
Make, be not suitable for promoting the use of.Therefore, use chemical method, chemical method is to process pollutant, bag with the chemical reagent thrown in more
Including the reactions such as neutralization, flocculation, oxidoreduction, it is more thorough that this mode processes sewage, can reach discharge standard after process；And
Sewage-treating agent is then the primary raw material of chemical treatment of sewage.
The sewage-treating agent function singleness primarily now used, it is therefore necessary to add flocculation in water treatment system respectively
The various medicaments such as agent, corrosion inhibiter, antibacterial, processing technological flow is complicated, equipment is many, operating process is numerous and diverse, added amount of chemical
Greatly, expense many, and between plurality of reagents can mutually be resisted by various chemical reactions, cause drug effect to reduce.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art to provide the preparation method of a kind of municipal wastewater inorganic agent, institute
Obtain municipal wastewater inorganic agent and substantially reduce the COD of sewage, Biochemical oxygen demand, float and total phosphorus.
The preparation method of a kind of municipal wastewater inorganic agent, comprises the following steps:
Step 1, in parts by weight, takes dry straw 50～100 parts, pulverizes, add sodium cyanoborohydride 5～12 parts, cerous nitrate
Ammonium 6～9 parts and gelatin solution 100～150 parts, mix homogeneously, it is warming up to 40～50 DEG C, is incubated 1～2 hour, adds poly-
Ethyl acrylate 4～7 parts, polyacrylonitrile 1～5 parts and glutaraldehyde 2～7 parts, be warming up to 45～55 DEG C, be incubated 2～4 hours, fall
Temperature, to 5～10 DEG C, filters, obtains solids；
Step 2, in parts by weight, adds to water 50～80 parts by 1-hydroxy ethylidene-1,1-diphosphonic acid 2～8 parts, PAPE 1～6 parts
In, stir 4～6 hours, add isothiazolone 2～7 parts, meerschaum 3～8 parts, starch xanthate 1～6 parts, seven water sulfur
Acid magnesium 2～7 parts, chitosan 1～4 parts, N, N-dimethylated methene di 2 ethylhexyl phosphonic acid 3～6 parts, lecithin 2～5 parts, lignin 1～6 parts,
Mix homogeneously, obtains mixture I；
Step 3, in parts by weight, adds sodium hydroxide solution regulation pH to 6.0～7.0 in mixture I, adds organic acid 3
～6 parts and the solids of the 1st step gained, after mix homogeneously, stand 12～24 hours,.
Further, in step 1 by dry crushed stalk to stalk particle size 5～10cm.
Further, the mass concentration of gelatin solution described in step 1 is 0.05～0.12%.
Further, the mass concentration of sodium hydroxide solution described in step 3 is 1～3%.
Further, the one during organic acid described in step 3 is malic acid, citric acid or tartaric acid.
Further, the mixed process of step 3 is at CO2Atmosphere is carried out.
Further, step 2 can also add cinnamic aldehyde 1～7 parts.
Further, step 3 can also add poly-epoxy succinic acid 2～8 parts.
Sewage chemical oxygen demand can be down to 63 mg/L by the municipal wastewater inorganic agent of the present invention, Biochemical oxygen demand is down to 28
Mg/L, float are down to 35 mg/L, 0.37 mg/L is down to by total phosphorus.
Detailed description of the invention
Embodiment 1
The preparation method of a kind of municipal wastewater inorganic agent, comprises the following steps:
Step 1, in parts by weight, takes dry straw 50 parts, pulverizes, and adds sodium cyanoborohydride 5 parts, ammonium ceric nitrate 6 parts and bright
Sol solution 100 parts, mix homogeneously, it is warming up to 40 DEG C, is incubated 2 hours, adds polyethyl acrylate 4 parts, polyacrylonitrile 1 part
With glutaraldehyde 2 parts, it is warming up to 45 DEG C, is incubated 4 hours, is cooled to 5 DEG C, filters, obtain solids；
Step 2, in parts by weight, adds in 50 parts of water by 1-hydroxy ethylidene-1,1-diphosphonic acid 2 parts, PAPE 1 part, and stirring 4 is little
Time, add isothiazolone 2 parts, meerschaum 3 parts, starch xanthate 1 part, Magnesium sulfate heptahydrate 2 parts, chitosan 1 part, N, N-
Dimethylated methene di 2 ethylhexyl phosphonic acid 3 parts, 2 parts of lecithin, lignin 1 part, mix homogeneously, obtain mixture I；
Step 3, in parts by weight, adds sodium hydroxide solution regulation pH to 6.0 in mixture I, adds organic acid 3 parts and the
The solids of 1 step gained, after mix homogeneously, stands 24 hours,.
Wherein, by dry crushed stalk to stalk particle size in 5cm, the mass concentration of institute's gelatine solution in step 1
It is 0.05%.The mass concentration of sodium hydroxide solution described in step 3 is 1%, and described organic acid is malic acid, and mixed process exists
CO2Atmosphere is carried out.
Embodiment 2
The preparation method of a kind of municipal wastewater inorganic agent, comprises the following steps:
Step 1, in parts by weight, takes dry straw 65 parts, pulverizes, and adds sodium cyanoborohydride 8 parts, ammonium ceric nitrate 7 parts and bright
Sol solution 125 parts, mix homogeneously, it is warming up to 45 DEG C, is incubated 1.5 hours, adds polyethyl acrylate 6 parts, polyacrylonitrile 3
Part and glutaraldehyde 5 parts, be warming up to 50 DEG C, be incubated 3 hours, be cooled to 8 DEG C, filter, obtain solids；
Step 2, in parts by weight, adds in 70 parts of water by 1-hydroxy ethylidene-1,1-diphosphonic acid 6 parts, PAPE 3 parts, and stirring 5 is little
Time, add isothiazolone 6 parts, meerschaum 7 parts, starch xanthate 4 parts, Magnesium sulfate heptahydrate 6 parts, chitosan 3 parts, N, N-
Dimethylated methene di 2 ethylhexyl phosphonic acid 5 parts, 4 parts of lecithin, lignin 3 parts, mix homogeneously, obtain mixture I；
Step 3, in parts by weight, adds sodium hydroxide solution regulation pH to 6.5 in mixture I, adds organic acid 4 parts and the
The solids of 1 step gained, after mix homogeneously, stands 24 hours,.
Wherein, by dry crushed stalk to stalk particle size in 8cm, the mass concentration of institute's gelatine solution in step 1
It is 0.08%.The mass concentration of sodium hydroxide solution described in step 3 is 2%, and described organic acid is malic acid, and mixed process exists
CO2Atmosphere is carried out.
Embodiment 3
The preparation method of a kind of municipal wastewater inorganic agent, comprises the following steps:
Step 1, in parts by weight, takes dry straw 90 parts, pulverizes, and adds sodium cyanoborohydride 5 parts, ammonium ceric nitrate 7 parts and bright
Sol solution 110 parts, mix homogeneously, it is warming up to 50 DEG C, is incubated 1 hour, adds polyethyl acrylate 5 parts, polyacrylonitrile 2 parts
With glutaraldehyde 3 parts, it is warming up to 45 DEG C, is incubated 4 hours, is cooled to 5 DEG C, filters, obtain solids；
Step 2, in parts by weight, adds in 65 parts of water by 1-hydroxy ethylidene-1,1-diphosphonic acid 4 parts, PAPE 3 parts, and stirring 4 is little
Time, add isothiazolone 3 parts, meerschaum 6 parts, starch xanthate 3 parts, Magnesium sulfate heptahydrate 4 parts, chitosan 2 parts, N, N-
Dimethylated methene di 2 ethylhexyl phosphonic acid 4 parts, 3 parts of lecithin, lignin 2 parts, mix homogeneously, obtain mixture I；
Step 3, in parts by weight, adds sodium hydroxide solution regulation pH to 7.0 in mixture I, adds organic acid 4 parts and the
The solids of 1 step gained, after mix homogeneously, stands 20 hours,.
Wherein, by dry crushed stalk to stalk particle size in 10cm, the mass concentration of institute's gelatine solution in step 1
It is 0.12%.The mass concentration of sodium hydroxide solution described in step 3 is 3%, and described organic acid is malic acid, and mixed process exists
CO2Atmosphere is carried out.
Embodiment 4
The preparation method of a kind of municipal wastewater inorganic agent, comprises the following steps:
Step 1, in parts by weight, takes dry straw 100 parts, pulverize, add sodium cyanoborohydride 12 parts, ammonium ceric nitrate 9 parts and
Gelatin solution 150 parts, mix homogeneously, it is warming up to 50 DEG C, is incubated 1 hour, adds polyethyl acrylate 7 parts, polyacrylonitrile 5
Part and glutaraldehyde 7 parts, be warming up to 45 DEG C, be incubated 4 hours, be cooled to 10 DEG C, filter, obtain solids；
Step 2, in parts by weight, adds in 80 parts of water by 1-hydroxy ethylidene-1,1-diphosphonic acid 8 parts, PAPE 6 parts, and stirring 6 is little
Time, add isothiazolone 7 parts, meerschaum 8 parts, starch xanthate 6 parts, Magnesium sulfate heptahydrate 7 parts, chitosan 4 parts, N, N-
Dimethylated methene di 2 ethylhexyl phosphonic acid 6 parts, 5 parts of lecithin, lignin 6 parts, mix homogeneously, obtain mixture I；
Step 3, in parts by weight, adds sodium hydroxide solution regulation pH to 7.0 in mixture I, adds organic acid 6 parts and the
The solids of 1 step gained, after mix homogeneously, stands 24 hours,.
Wherein, by dry crushed stalk to stalk particle size in 8cm, the mass concentration of institute's gelatine solution in step 1
It is 0.08%.The mass concentration of sodium hydroxide solution described in step 3 is 2%, and described organic acid is malic acid, and mixed process exists
CO2Atmosphere is carried out.
Embodiment 5
The present embodiment is with the difference of embodiment 2: can also add cinnamic aldehyde 1～7 parts in step 2.
The preparation method of a kind of municipal wastewater inorganic agent, comprises the following steps:
Step 1, in parts by weight, takes dry straw 65 parts, pulverizes, and adds sodium cyanoborohydride 8 parts, ammonium ceric nitrate 7 parts and bright
Sol solution 125 parts, mix homogeneously, it is warming up to 45 DEG C, is incubated 1.5 hours, adds polyethyl acrylate 6 parts, polyacrylonitrile 3
Part and glutaraldehyde 5 parts, be warming up to 50 DEG C, be incubated 3 hours, be cooled to 8 DEG C, filter, obtain solids；
Step 2, in parts by weight, adds in 70 parts of water by 1-hydroxy ethylidene-1,1-diphosphonic acid 6 parts, PAPE 3 parts, and stirring 5 is little
Time, add isothiazolone 6 parts, meerschaum 7 parts, starch xanthate 4 parts, Magnesium sulfate heptahydrate 6 parts, chitosan 3 parts, N, N-
Dimethylated methene di 2 ethylhexyl phosphonic acid 5 parts, 4 parts of lecithin, lignin 3 parts, cinnamic aldehyde 7 parts, mix homogeneously, obtain mixture I；
Step 3, in parts by weight, adds sodium hydroxide solution regulation pH to 6.5 in mixture I, adds organic acid 4 parts and the
The solids of 1 step gained, after mix homogeneously, stands 24 hours,.
Wherein, by dry crushed stalk to stalk particle size in 8cm, the mass concentration of institute's gelatine solution in step 1
It is 0.08%.The mass concentration of sodium hydroxide solution described in step 3 is 2%, and described organic acid is malic acid, and mixed process exists
CO2Atmosphere is carried out.
Embodiment 6
The present embodiment is with the difference of embodiment 5: can also add poly-epoxy succinic acid 2～8 parts in step 3.
The preparation method of a kind of municipal wastewater inorganic agent, comprises the following steps:
Step 1, in parts by weight, takes dry straw 65 parts, pulverizes, and adds sodium cyanoborohydride 8 parts, ammonium ceric nitrate 7 parts and bright
Sol solution 125 parts, mix homogeneously, it is warming up to 45 DEG C, is incubated 1.5 hours, adds polyethyl acrylate 6 parts, polyacrylonitrile 3
Part and glutaraldehyde 5 parts, be warming up to 50 DEG C, be incubated 3 hours, be cooled to 8 DEG C, filter, obtain solids；
Step 2, in parts by weight, adds in 70 parts of water by 1-hydroxy ethylidene-1,1-diphosphonic acid 6 parts, PAPE 3 parts, and stirring 5 is little
Time, add isothiazolone 6 parts, meerschaum 7 parts, starch xanthate 4 parts, Magnesium sulfate heptahydrate 6 parts, chitosan 3 parts, N, N-
Dimethylated methene di 2 ethylhexyl phosphonic acid 5 parts, 4 parts of lecithin, lignin 3 parts, cinnamic aldehyde 7 parts, poly-epoxy succinic acid 6 parts, mix homogeneously,
To mixture I；
Step 3, in parts by weight, adds sodium hydroxide solution regulation pH to 6.5 in mixture I, adds organic acid 4 parts and the
The solids of 1 step gained, after mix homogeneously, stands 24 hours,.
Wherein, by dry crushed stalk to stalk particle size in 8cm, the mass concentration of institute's gelatine solution in step 1
It is 0.08%.The mass concentration of sodium hydroxide solution described in step 3 is 2%, and described organic acid is malic acid, and mixed process exists
CO2Atmosphere is carried out.
With 100mg/L, embodiment 1 to 6 gained inorganic agent being put into municipal wastewater sample process, result is as follows:
Understanding, sewage chemical oxygen demand can be down to 63 mg/L by the municipal wastewater inorganic agent of the present invention, Biochemical oxygen demand is down to 28
Mg/L, float are down to 35 mg/L, 0.37 mg/L is down to by total phosphorus.Further, since the addition of cinnamic aldehyde, can reduce further
The COD of sewage sample and float；And the addition of poly-epoxy succinic acid, the life of sewage sample can be reduced further
Change oxygen demand and total phosphorus content.
Claims (8)
1. the preparation method of a municipal wastewater inorganic agent, it is characterised in that: comprise the following steps:
Step 1, in parts by weight, takes dry straw 50～100 parts, pulverizes, add sodium cyanoborohydride 5～12 parts, cerous nitrate
Ammonium 6～9 parts and gelatin solution 100～150 parts, mix homogeneously, it is warming up to 40～50 DEG C, is incubated 1～2 hour, adds poly-
Ethyl acrylate 4～7 parts, polyacrylonitrile 1～5 parts and glutaraldehyde 2～7 parts, be warming up to 45～55 DEG C, be incubated 2～4 hours, fall
Temperature, to 5～10 DEG C, filters, obtains solids；
Step 2, in parts by weight, adds to water 50～80 parts by 1-hydroxy ethylidene-1,1-diphosphonic acid 2～8 parts, PAPE 1～6 parts
In, stir 4～6 hours, add isothiazolone 2～7 parts, meerschaum 3～8 parts, starch xanthate 1～6 parts, seven water sulfur
Acid magnesium 2～7 parts, chitosan 1～4 parts, N, N-dimethylated methene di 2 ethylhexyl phosphonic acid 3～6 parts, lecithin 2～5 parts, lignin 1～6 parts,
Mix homogeneously, obtains mixture I；
Step 3, in parts by weight, adds sodium hydroxide solution regulation pH to 6.0～7.0 in mixture I, adds organic acid 3
～6 parts and the solids of the 1st step gained, after mix homogeneously, stand 12～24 hours,.
The preparation method of municipal wastewater inorganic agent the most according to claim 1, it is characterised in that: by dry straw in step 1
Stalk is crushed to stalk particle size 5～10cm.
The preparation method of municipal wastewater inorganic agent the most according to claim 1, it is characterised in that: gelatin described in step 1
The mass concentration of solution is 0.05～0.12%.
The preparation method of municipal wastewater inorganic agent the most according to claim 1, it is characterised in that: hydrogen-oxygen described in step 3
The mass concentration changing sodium solution is 1～3%.
The preparation method of municipal wastewater inorganic agent the most according to claim 1, it is characterised in that: organic described in step 3
Acid is the one in malic acid, citric acid or tartaric acid.
The preparation method of municipal wastewater inorganic agent the most according to claim 1, it is characterised in that: the mixed process of step 3
At CO2Atmosphere is carried out.
The preparation method of municipal wastewater inorganic agent the most according to claim 1, it is characterised in that: step 2 can also add
Enter cinnamic aldehyde 1～7 parts.
The preparation method of municipal wastewater inorganic agent the most according to claim 1, it is characterised in that: step 3 can also add
Enter poly-epoxy succinic acid 2～8 parts.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610132286.8A CN105776364A (en) | 2016-03-09 | 2016-03-09 | Preparation method of municipal sewage treating agent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610132286.8A CN105776364A (en) | 2016-03-09 | 2016-03-09 | Preparation method of municipal sewage treating agent |
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| CN105776364A true CN105776364A (en) | 2016-07-20 |
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| CN201610132286.8A Pending CN105776364A (en) | 2016-03-09 | 2016-03-09 | Preparation method of municipal sewage treating agent |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108314104A (en) * | 2018-03-16 | 2018-07-24 | 山东冬瑞高新技术开发有限公司 | A kind of sewage-treating agent and preparation method thereof |
| CN113896334A (en) * | 2021-11-17 | 2022-01-07 | 温州市南星环保有限公司 | Scale inhibitor and descaling agent |
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| CN102583600A (en) * | 2012-03-22 | 2012-07-18 | 杭州一清环保工程有限公司 | Composite purifying agent used for purifying sewage in river channel |
| CN103641247A (en) * | 2013-12-27 | 2014-03-19 | 姚为 | Domestic sewage treatment agent and preparation method thereof |
| CN104472539A (en) * | 2014-11-27 | 2015-04-01 | 苏州佑君环境科技有限公司 | Non-oxidized type compound bactericide for water treatment and preparation method thereof |
| CN105016444A (en) * | 2015-07-24 | 2015-11-04 | 刘雷 | Efficient sewage treating agent and method for treating sewage by using same |
| CN105056902A (en) * | 2015-08-03 | 2015-11-18 | 四川农业大学 | Method for treatment of anionic pollutant containing wastewater with modified tobacco straw |
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2016
- 2016-03-09 CN CN201610132286.8A patent/CN105776364A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11138179A (en) * | 1997-11-14 | 1999-05-25 | Nippon Gijutsu Kaihatsu Center:Kk | Gradually dissolving water treating agent and its production |
| CN102583600A (en) * | 2012-03-22 | 2012-07-18 | 杭州一清环保工程有限公司 | Composite purifying agent used for purifying sewage in river channel |
| CN103641247A (en) * | 2013-12-27 | 2014-03-19 | 姚为 | Domestic sewage treatment agent and preparation method thereof |
| CN104472539A (en) * | 2014-11-27 | 2015-04-01 | 苏州佑君环境科技有限公司 | Non-oxidized type compound bactericide for water treatment and preparation method thereof |
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| CN105056902A (en) * | 2015-08-03 | 2015-11-18 | 四川农业大学 | Method for treatment of anionic pollutant containing wastewater with modified tobacco straw |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108314104A (en) * | 2018-03-16 | 2018-07-24 | 山东冬瑞高新技术开发有限公司 | A kind of sewage-treating agent and preparation method thereof |
| CN113896334A (en) * | 2021-11-17 | 2022-01-07 | 温州市南星环保有限公司 | Scale inhibitor and descaling agent |
| CN113896334B (en) * | 2021-11-17 | 2023-11-14 | 温州市南星环保有限公司 | Scale inhibitor and remover |
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