CN105236540A - Flocculating agent used for treating papermaking wastewater - Google Patents
Flocculating agent used for treating papermaking wastewater Download PDFInfo
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- CN105236540A CN105236540A CN201510714995.2A CN201510714995A CN105236540A CN 105236540 A CN105236540 A CN 105236540A CN 201510714995 A CN201510714995 A CN 201510714995A CN 105236540 A CN105236540 A CN 105236540A
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- water
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- flocculation agent
- wilkinite
- alum
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Abstract
The invention discloses a flocculating agent used for treating papermaking wastewater. The preparation method for the flocculating agent comprises the following steps: S1, by weight, weighing 10 to 18 parts of water-soluble polyacrylamide, 3 to 9 parts of alum, 5 to 15 parts of bentonite, 4 to 12 parts of chitosan oligosaccharide and 20 to 28 parts of polymeric ferric silicate sulfate, and carrying out mixing proportionally so as to prepare the flocculating agent; S2, adding the flocculating agent into the papermaking wastewater, maintaining the temperature of water to be 30 to 50 DEG C and a PH value to be 6 to 8, and carrying out stirring; and S3, after stirring is completed, waiting for the wastewater to stand and participate, then taking the supernatant liquid of the wastewater, and detecting the values of BOD, COD and total suspended solids in the supernatant liquid. The flocculating agent provided by the invention has the characteristics of high efficiency and broad spectrum, and is adaptive to a wide range of the pH value of the water quality; good effects are obtained when the pH value is in the range of 4 to 11; flocculation precipitates are compact; the precipitation speed is rapid; clarification and layering are easy; treated water is significantly clean; meanwhile, the agent does not contain an aluminum element and is environment-friendly and safe.
Description
Technical field
The present invention relates to technical field of waste water processing, particularly relate to a kind of flocculation agent for the treatment of paper waste.
Background technology
Along with our people's economic activity is day by day frequent, by soil erosion, the pollution that production and sanitary sewage cause water body is more and more serious, its pollutant component comprises lot of trace organic pollutant, heavy-metal pollution thing, macromole natural organic matter also containing higher concentration, particularly trade effluent, the feature of trade effluent is that wastewater discharge is large, the numerical value height very of BOD and COD, in waste water, fibre suspension is many, and containing divalent sulfur and band look, single flocculation agent common on market can not have been dealt with problems, and along with the enhancing of people's environmental consciousness, also more and more higher to the requirement of flocculation agent, people need those effectively can process waste water flocculation agent harmless again.
Summary of the invention
Based on the technical problem that background technology exists, the present invention proposes a kind of flocculation agent for the treatment of paper waste.
A kind of flocculation agent for the treatment of paper waste that the present invention proposes, described flocculation agent is made up of the starting material of following weight part:
Water-soluble polyacrylamide 10-18 part;
Alum 3-9 part;
Wilkinite 5-15 part;
Oligochitosan 4-12 part;
Poly-silicic acid iron sulfate 20-28 part;
The using method of flocculation agent comprises the following steps:
S1, takes water-soluble polyacrylamide and alum, wilkinite, oligochitosan, poly-silicic acid iron sulfate by weight respectively, alum, wilkinite, oligochitosan, poly-silicic acid iron sulfate is added in water-soluble polyacrylamide to carry out distribution and be mixed to form flocculation agent;
S2, adds in paper waste by the flocculation agent made in S1, and the temperature keeping paper waste is 30-50 degree Celsius, and pH value is 5.8-6.5, is then stirred;
S3, stirs after terminating, and waits for that waste water staticly settles, then gets the liquid detecting on waste water upper strata, draw the numerical value of BOD, COD wherein and total suspended matter.
Preferably, described water-soluble polyacrylamide 11-17 part, alum 5-8 part, wilkinite 7-14 part, oligochitosan 5-10 part, poly-silicic acid iron sulfate 22-27 part.
Preferably, described water-soluble polyacrylamide 15 parts, 7 parts, alum, wilkinite 10 parts, oligochitosan 8 parts, poly-silicic acid iron sulfate 25 parts.
Preferably, the weight ratio of described water-soluble polyacrylamide, alum, wilkinite, oligochitosan, poly-silicic acid iron sulfate is 12-18:4-8:5-14:5-11:21-26.
Preferably, described wilkinite is organobentonite.
In the present invention: wilkinite has adsorptivity and cation exchange property, can be used for the purification of the toxin of removing edible oil, gasoline and kerosene, wastewater treatment; Owing to having good water-swelling property and dispersion and suspension and pulping, therefore for drilling mud, fire-retardant (suspend fire extinguishing); Alum is water white transparency lump shaped crystalline or crystalline powder, odorless, and taste is micro-sweet and sour and astringent.In dry air, weathering loses crystal water, dissolves and drop down water in damp atmosphere, has the effect of water purification; Polyacrylamide (PAM) is high molecular weight water soluble polymer, is insoluble to most of organic solvent, has good flocculence, can reduce the friction resistance between liquid; Oligochitosan has that molecular weight is low, good water solubility, function is absorbed by the body greatly, easily, biological activity is high effect, and have very strong bacteriostatic action; The purifying water effect of poly-silicic acid iron sulfate is excellent, water quality after purification is good, not containing objectionable impuritiess such as aluminium, chlorine and heavy metal ion, also the water of non-iron-ion is to transfer, nontoxic, harmless, safe and reliable, turbidity removal, decolouring, de-oiling, dehydration, degerming, deodorizing, except algae, to remove effect such as COD, BOD and heavy metal ion in water remarkable etc., also for Industrial Wastewater Treatment, as dyeing waste water etc., be also widely used in casting, papermaking, medicine, process hides etc.
Flocculation agent in the present invention has characteristic that is efficient and wide spectrum, its pH scope adapting to water quality is wide, pH value all has good effect in the scope of 5.8-6.5, flocculate precipitate is tight, settling velocity is fast, easily clarifies layering, very clean of the water quality after process, and not containing aluminium element, Environmental Safety very.
Embodiment
Below in conjunction with specific embodiment, further explanation is done to the present invention.
Embodiment one
A kind of flocculation agent for the treatment of paper waste that the present invention proposes, described flocculation agent is made up of the starting material of following weight part: water-soluble polyacrylamide 10 parts, 3 parts, alum, wilkinite 5 parts, oligochitosan 4 parts, poly-silicic acid iron sulfate 20 parts.
The using method of flocculation agent Processing Paper Wastewater comprises the following steps:
S1, takes water-soluble polyacrylamide and alum, wilkinite, oligochitosan, poly-silicic acid iron sulfate by weight respectively, alum, wilkinite, oligochitosan, poly-silicic acid iron sulfate is added in water-soluble polyacrylamide to carry out distribution and be mixed to form flocculation agent;
S2, adds in paper waste by the flocculation agent made in S1, and keep water temperature to be 30 degrees Celsius, pH value is 5.8, then stirs with the speed of per minute 100 turns;
S3, stir terminate after, wait for waste water staticly settle 3 minutes, then go upper strata liquid detecting BOD, COD wherein and the numerical value of total suspended matter.
Embodiment two
A kind of flocculation agent for the treatment of paper waste that the present invention proposes, described flocculation agent is made up of the starting material of following weight part: water-soluble polyacrylamide 12 parts, 4 parts, alum, wilkinite 7 parts, oligochitosan 6 parts, poly-silicic acid iron sulfate 21 parts.
The using method of flocculation agent Processing Paper Wastewater comprises the following steps:
S1, takes water-soluble polyacrylamide and alum, wilkinite, oligochitosan, poly-silicic acid iron sulfate by weight respectively, alum, wilkinite, oligochitosan, poly-silicic acid iron sulfate is added in water-soluble polyacrylamide to carry out distribution and be mixed to form flocculation agent;
S2, adds in paper waste by the flocculation agent made in S1, and keep water temperature to be 35 degrees Celsius, pH value is 6.0, then stirs with the speed of per minute 120 turns;
S3, stir terminate after, wait for waste water staticly settle 5 minutes, then go upper strata liquid detecting BOD, COD wherein and the numerical value of total suspended matter.
Embodiment three
A kind of flocculation agent for the treatment of paper waste that the present invention proposes, described flocculation agent is made up of the starting material of following weight part: water-soluble polyacrylamide 14 parts, 5 parts, alum, wilkinite 9 parts, oligochitosan 8 parts, poly-silicic acid iron sulfate 23 parts.
The using method of flocculation agent Processing Paper Wastewater comprises the following steps:
S1, takes water-soluble polyacrylamide and alum, wilkinite, oligochitosan, poly-silicic acid iron sulfate by weight respectively, alum, wilkinite, oligochitosan, poly-silicic acid iron sulfate is added in water-soluble polyacrylamide to carry out distribution and be mixed to form flocculation agent;
S2, adds in paper waste by the flocculation agent made in S1, and keep water temperature to be 40 degrees Celsius, pH value is 6.1, then stirs with the speed of per minute 140 turns;
S3, stir terminate after, wait for waste water staticly settle 8 minutes, then go upper strata liquid detecting BOD, COD wherein and the numerical value of total suspended matter.
Embodiment four
A kind of flocculation agent for the treatment of paper waste that the present invention proposes, described flocculation agent is made up of the starting material of following weight part: water-soluble polyacrylamide 16 parts, 7 parts, alum, wilkinite 12 parts, oligochitosan 10 parts, poly-silicic acid iron sulfate 26 parts.
The using method of flocculation agent Processing Paper Wastewater comprises the following steps:
S1, takes water-soluble polyacrylamide and alum, wilkinite, oligochitosan, poly-silicic acid iron sulfate by weight respectively, alum, wilkinite, oligochitosan, poly-silicic acid iron sulfate is added in water-soluble polyacrylamide to carry out distribution and be mixed to form flocculation agent;
S2, adds in paper waste by the flocculation agent made in S1, and keep water temperature to be 45 degrees Celsius, pH value is 6.3, then stirs with the speed of per minute 160 turns;
S3, stir terminate after, wait for waste water staticly settle 10 minutes, then go upper strata liquid detecting BOD, COD wherein and the numerical value of total suspended matter.
Embodiment five
A kind of flocculation agent for the treatment of paper waste that the present invention proposes, described flocculation agent is made up of the starting material of following weight part: water-soluble polyacrylamide 18 parts, 9 parts, alum, wilkinite 15 parts, oligochitosan 12 parts, poly-silicic acid iron sulfate 28 parts.
The using method of flocculation agent Processing Paper Wastewater comprises the following steps:
S1, takes water-soluble polyacrylamide and alum, wilkinite, oligochitosan, poly-silicic acid iron sulfate by weight respectively, alum, wilkinite, oligochitosan, poly-silicic acid iron sulfate is added in water-soluble polyacrylamide to carry out distribution and be mixed to form flocculation agent;
S2, adds in paper waste by the flocculation agent made in S1, and keep water temperature to be 50 degrees Celsius, pH value is 6.5, then stirs with the speed of per minute 180 turns;
S3, stir terminate after, wait for waste water staticly settle 13 minutes, then go upper strata liquid detecting BOD, COD wherein and the numerical value of total suspended matter.
Adopt a kind of flocculation agent for the treatment of paper waste of above embodiment; waste water total soluble matter concentration after process is 25 ~ 40mg/L; total suspended matter is 2 ~ 4mg/L; BOD reduces 80% ~ 87%; COD reduces 75% ~ 80%, and pollutants removal rate is 82% ~ 88%, not only can effectively process waste water; and this flocculation agent is not containing aluminium element, effectively can protect the safety of human body.
The above; be only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, all should be encompassed within protection scope of the present invention.
Claims (5)
1. for the treatment of a flocculation agent for paper waste, it is characterized in that, described flocculation agent is made up of the starting material of following weight part:
Water-soluble polyacrylamide 10-18 part;
Alum 3-9 part;
Wilkinite 5-15 part;
Oligochitosan 4-12 part;
Poly-silicic acid iron sulfate 20-28 part;
The using method of flocculation agent comprises the following steps:
S1, takes water-soluble polyacrylamide and alum, wilkinite, oligochitosan, poly-silicic acid iron sulfate by weight respectively, alum, wilkinite, oligochitosan, poly-silicic acid iron sulfate is added in water-soluble polyacrylamide to carry out distribution and be mixed to form flocculation agent;
S2, adds in paper waste by the flocculation agent made in S1, and the temperature keeping paper waste is 30-50 degree Celsius, and pH value is 5.8-6.5, is then stirred;
S3, stirs after terminating, and waits for that waste water staticly settles, then gets the liquid detecting on waste water upper strata, draw the numerical value of BOD, COD wherein and total suspended matter.
2. a kind of flocculation agent for the treatment of paper waste according to claim 1, is characterized in that, described water-soluble polyacrylamide 11-17 part, alum 5-8 part, wilkinite 7-14 part, oligochitosan 5-10 part, poly-silicic acid iron sulfate 22-27 part.
3. a kind of flocculation agent for the treatment of paper waste according to claim 1 and 2, is characterized in that, described water-soluble polyacrylamide 15 parts, 7 parts, alum, wilkinite 10 parts, oligochitosan 8 parts, poly-silicic acid iron sulfate 25 parts.
4. a kind of flocculation agent for the treatment of paper waste according to claim 1, is characterized in that, the weight ratio of described water-soluble polyacrylamide, alum, wilkinite, oligochitosan, poly-silicic acid iron sulfate is 12-18:4-8:5-14:5-11:21-26.
5. a kind of flocculation agent for the treatment of paper waste according to claim 1, is characterized in that, described wilkinite is organobentonite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510714995.2A CN105236540A (en) | 2015-10-29 | 2015-10-29 | Flocculating agent used for treating papermaking wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510714995.2A CN105236540A (en) | 2015-10-29 | 2015-10-29 | Flocculating agent used for treating papermaking wastewater |
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| Publication Number | Publication Date |
|---|---|
| CN105236540A true CN105236540A (en) | 2016-01-13 |
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| CN201510714995.2A Withdrawn CN105236540A (en) | 2015-10-29 | 2015-10-29 | Flocculating agent used for treating papermaking wastewater |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106915810A (en) * | 2017-04-19 | 2017-07-04 | 宝鸡文理学院 | A kind of high efficiency composition flocculant and its preparation method and application |
| CN111268776A (en) * | 2018-12-04 | 2020-06-12 | 上海泽戌化学科技有限公司 | Flocculant for petrochemical wastewater treatment and preparation method thereof |
| CN111268775A (en) * | 2018-12-04 | 2020-06-12 | 上海泽戌化学科技有限公司 | Flocculating agent for printing and dyeing wastewater treatment and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663644A (en) * | 2013-12-09 | 2014-03-26 | 山东华亚环保科技有限公司 | Flocculant for treating papermaking wastewater |
| CN104310544A (en) * | 2014-09-24 | 2015-01-28 | 青岛文创科技有限公司 | Flocculant for treating papermaking wastewater |
-
2015
- 2015-10-29 CN CN201510714995.2A patent/CN105236540A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663644A (en) * | 2013-12-09 | 2014-03-26 | 山东华亚环保科技有限公司 | Flocculant for treating papermaking wastewater |
| CN104310544A (en) * | 2014-09-24 | 2015-01-28 | 青岛文创科技有限公司 | Flocculant for treating papermaking wastewater |
Non-Patent Citations (3)
| Title |
|---|
| 冯延民: "《壳寡糖与人类健康》", 31 March 2008, 吉林大学出版社 * |
| 姚时俊: "《汽车美容与装饰》", 30 September 2001, 辽宁科学技术出版社 * |
| 王志艳: "《解码造纸术》", 31 July 2012, 延边大学出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106915810A (en) * | 2017-04-19 | 2017-07-04 | 宝鸡文理学院 | A kind of high efficiency composition flocculant and its preparation method and application |
| CN106915810B (en) * | 2017-04-19 | 2020-11-20 | 安徽金兄弟环保科技股份有限公司 | High-efficiency composite flocculant and preparation method and application thereof |
| CN111268776A (en) * | 2018-12-04 | 2020-06-12 | 上海泽戌化学科技有限公司 | Flocculant for petrochemical wastewater treatment and preparation method thereof |
| CN111268775A (en) * | 2018-12-04 | 2020-06-12 | 上海泽戌化学科技有限公司 | Flocculating agent for printing and dyeing wastewater treatment and preparation method thereof |
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Application publication date: 20160113 |
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