CN104475036A - Preparation method of industrial sewage/wastewater decolorant - Google Patents
Preparation method of industrial sewage/wastewater decolorant Download PDFInfo
- Publication number
- CN104475036A CN104475036A CN201410710743.8A CN201410710743A CN104475036A CN 104475036 A CN104475036 A CN 104475036A CN 201410710743 A CN201410710743 A CN 201410710743A CN 104475036 A CN104475036 A CN 104475036A
- Authority
- CN
- China
- Prior art keywords
- preparation
- parts
- wastewater
- industrial sewage
- decolorant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
-
- 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
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
Abstract
The invention relates to the technical field of design and manufacturing of industrial sewage/wastewater decolorants, and particularly provides a preparation method of an industrial sewage/wastewater decolorant. The preparation method comprises the following steps: (1) proportionally and sequentially adding 2-8 parts of liquid dicyandiamide, 7-13 parts of formaldehyde, 1-5 parts of catalyst and 1-3 parts of aluminum sulfate into a reaction kettle, stirring for 10-15 minutes, heating to 65-80 DEG C, and keeping the temperature for 3-5 hours; and (2) after the mixed solution reaction is finished, stopping stirring, and cooling to room temperature to obtain the product decolorant, wherein the catalyst is Al2O3. The decolorant is mainly used for decolorization and decontamination of industrial sewage/wastewater.
Description
Technical field
The design and manufaction technical field of trade effluent waste water decoloring of the present invention agent, particularly designs the preparation method of a kind of trade effluent waste water decoloring agent.
Background technology
At present, sewage disposal processed in units sewage generally adopts: the group technology of " physico-chemical precipitation (or air supporting)+anaerobism (or double oxygen)+aerobic+physico-chemical precipitation ", the COD of more than 40% is not effectively removed and other is as suspension, ammonia nitrogen etc. by means of only flocculation, meanwhile, this technique also can have certain decolorization.But effect is not satisfactory, current many manufacturing enterprises are after bio-chemical effluent, and all other indexs all can be up to standard, but the bad cancellation of the colourity of sewage and waste water, and usual produced dirty water and waste water mostly is light yellow or brown.Such as: coking chemical waste water, dyeing waste water and paper waste etc.Production unit can adopt activated carbon filtration to adsorb or ClO
2, O
3oxidative decoloration, even UF membrane decolouring.But the investment of these modes is large, and operating cost is high.A kind of special sewage and waste water decolorizer can be designed, this decolorizer production cost and use cost lower, simultaneously, according to the colourity of different water outlet, when controlling cost minimum, make the obvious cancellation of wastewater and sewage effluent color dilution, and the standard of country's discharge can be reached.
Summary of the invention
The object of the invention is to: provide a kind of sewage and waste water decolorizer, its preparation method is rationally simple, and the decolorizer stable performance of production, absorption property is good.
Technical scheme of the present invention: the preparation method of a kind of trade effluent waste water decoloring agent, this preparation method is made up of following steps: (1) is by the dicyandiamide 2 ~ 8 parts of liquid state, 7 ~ 13 parts, formaldehyde, catalyst 1 ~ 5 part, 1 ~ 3 part, aluminum sulfate, proportionally add successively in reactor, stir 10-15min, after being warming up to 65-80 DEG C, insulation 3-5h; (2), after above-mentioned mixed solution reaction terminates, stop stirring, after being cooled to room temperature, obtain this product decolorizer; Described catalyst is Al
2o
3.
Beneficial effect of the present invention: this preparation method is succinctly reasonable, and cost of manufacture is lower, can reduce the pollution treatment cost of enterprise preferably, the decolorizer stable performance of producing, and absorption property is good, and the sewage after decolouring can reach the discharge standard of country.
Detailed description of the invention
Specific embodiment (according to parts by weight)
| Raw material | Dicyandiamide/part | Formaldehyde/part | Catalyst/part | Aluminum sulfate/part |
| Embodiment 1 | 2 | 13 | 1 | 3 |
| Embodiment 2 | 5 | 10 | 3 | 2 |
| Embodiment 3 | 8 | 7 | 5 | 1 |
(1) by the dicyandiamide of liquid state, formaldehyde, catalyst, aluminum sulfate, add successively in reactor according to upper table parts by weight, stir 10-15min, after being warming up to 65-80 DEG C, insulation 3-5h;
(2), after above-mentioned mixed solution reaction terminates, stop stirring, after being cooled to room temperature, obtain this product decolorizer; Described catalyst is Al
2o
3.
For chroma removal rate in sewage index to this product and market be upper conventional flocculant, decolorizer carries out contrast test.
(1) sewage takes from Shihezi treatment of dyeing wastewater factory, and former colority of water is: 800 times (dilution method), and at identical conditions, dosage: 100mg/L, adds this product, commercially available flocculant, commercially available decolorizer respectively in dyeing waste water.Result is as shown in the table:
| Decolorizer | Chroma removal rate (%) |
| Embodiment 1 | 91.2 |
| Embodiment 2 | 96.3 |
| Embodiment 3 | 93.2 |
| Commercially available flocculant | 82.4 |
| Commercially available decolorizer | 90.9 |
(2) sewage takes from Kuerle waste water of paper mill, and former colority of water is: 1100 times (dilution method), and at identical conditions, dosage: 100mg/L, adds this product, commercially available flocculant, commercially available decolorizer respectively in dyeing waste water.Result is as shown in the table:
| Decolorizer | Chroma removal rate (%) |
| Embodiment 1 | 90.9 |
| Embodiment 2 | 93.2 |
| Embodiment 3 | 92.9 |
| Commercially available flocculant | 79.4 |
| Commercially available decolorizer | 83.1 |
As seen from the above, this product has good absorption property as sewage decoloring agent, under low dosage, have good decolorization, makes sewage reach discharge standard.Reduce the operating cost of enterprise.
Claims (1)
1. the preparation method of trade effluent waste water decoloring agent, it is characterized in that: this preparation method is made up of following steps: (1) is by the dicyandiamide 2 ~ 8 parts of liquid state, 7 ~ 13 parts, formaldehyde, catalyst 1 ~ 5 part, 1 ~ 3 part, aluminum sulfate, proportionally add successively in reactor, stir 10-15min, after being warming up to 65-80 DEG C, insulation 3-5h; (2), after above-mentioned mixed solution reaction terminates, stop stirring, after being cooled to room temperature, obtain this product decolorizer; Described catalyst is Al
2o
3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410710743.8A CN104475036A (en) | 2014-11-27 | 2014-11-27 | Preparation method of industrial sewage/wastewater decolorant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410710743.8A CN104475036A (en) | 2014-11-27 | 2014-11-27 | Preparation method of industrial sewage/wastewater decolorant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104475036A true CN104475036A (en) | 2015-04-01 |
Family
ID=52749719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410710743.8A Pending CN104475036A (en) | 2014-11-27 | 2014-11-27 | Preparation method of industrial sewage/wastewater decolorant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104475036A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105000712A (en) * | 2015-07-20 | 2015-10-28 | 湖州吉昌丝绸有限公司 | Papermaking industry wastewater discoloration treatment method and novel composite decolorant |
| CN105000702A (en) * | 2015-07-20 | 2015-10-28 | 湖州吉昌丝绸有限公司 | Printing and dyeing industry wastewater discoloration treatment method and novel composite decolorant |
| CN105174530A (en) * | 2015-07-20 | 2015-12-23 | 湖州吉昌丝绸有限公司 | Texture industry wastewater decoloring treatment method and novel compound decolorant |
| CN106242081A (en) * | 2016-09-23 | 2016-12-21 | 广东慧信环保有限公司 | A kind of preparation method of organo-mineral complexing biological flocculant |
| CN109319905A (en) * | 2018-10-22 | 2019-02-12 | 新疆环境工程技术有限责任公司 | Decolorising agent for dyeing and printing sewage |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101935094A (en) * | 2010-08-25 | 2011-01-05 | 常州大学 | Method for preparing decoloring flocculant of reactive dye waste water |
| CN104058486A (en) * | 2014-05-29 | 2014-09-24 | 厦门市大净环保科技有限公司 | Organic-inorganic composite efficient decolorizing agent and using method thereof |
-
2014
- 2014-11-27 CN CN201410710743.8A patent/CN104475036A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101935094A (en) * | 2010-08-25 | 2011-01-05 | 常州大学 | Method for preparing decoloring flocculant of reactive dye waste water |
| CN104058486A (en) * | 2014-05-29 | 2014-09-24 | 厦门市大净环保科技有限公司 | Organic-inorganic composite efficient decolorizing agent and using method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105000712A (en) * | 2015-07-20 | 2015-10-28 | 湖州吉昌丝绸有限公司 | Papermaking industry wastewater discoloration treatment method and novel composite decolorant |
| CN105000702A (en) * | 2015-07-20 | 2015-10-28 | 湖州吉昌丝绸有限公司 | Printing and dyeing industry wastewater discoloration treatment method and novel composite decolorant |
| CN105174530A (en) * | 2015-07-20 | 2015-12-23 | 湖州吉昌丝绸有限公司 | Texture industry wastewater decoloring treatment method and novel compound decolorant |
| CN106242081A (en) * | 2016-09-23 | 2016-12-21 | 广东慧信环保有限公司 | A kind of preparation method of organo-mineral complexing biological flocculant |
| CN109319905A (en) * | 2018-10-22 | 2019-02-12 | 新疆环境工程技术有限责任公司 | Decolorising agent for dyeing and printing sewage |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150401 |