CN104944638A - Treatment method for high-salinity and low-pollution industrial wastewater - Google Patents
Treatment method for high-salinity and low-pollution industrial wastewater Download PDFInfo
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- CN104944638A CN104944638A CN201510313721.2A CN201510313721A CN104944638A CN 104944638 A CN104944638 A CN 104944638A CN 201510313721 A CN201510313721 A CN 201510313721A CN 104944638 A CN104944638 A CN 104944638A
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- absorbent charcoal
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Abstract
The invention discloses a treatment method for high-salinity and low-pollution industrial wastewater. The treatment method comprises the following steps: (1) feeding the industrial wastewater into a buffer pool; (2) adopting a wastewater treatment device formed by three using devices and one standby device, wherein each device comprises two active carbon adsorption tanks which can be connected in series or in parallel or independently operate for adsorption; (3) conveying the industrial wastewater in the active carbon adsorption tanks to be adsorbed, wherein the adsorption temperature is 20-50 DEG C, the retaining time of the industrial wastewater is equal to or longer than 30 minutes, and the flow is equal to or smaller than 160 m<3>/h; (4) conveying the industrial wastewater after being adsorbed by active carbon into a filter tank for filtering; (5) discharging the industrial wastewater after filtering. The treatment method disclosed by the invention is suitable for treating industrial wastewater of which the total salt content is equal to or smaller than 59,000 mg/L, the pH value is 9.5-12, and the total organic carbon content is 60 mg/L, wherein triethylamine of which the concentration is equal to or smaller than 45 mg/L accounts for 50% or above of organic pollutants; active carbon with the very strong adsorption capacity is used for effectively treating pollutants in the industrial wastewater, and the effluent quality can meet the sewage discharge standard set by the industry.
Description
Technical field
The present invention relates to technical field of waste water processing, specifically, is a kind for the treatment of process of trade effluent, and be especially applicable to high salinity, the waste water of strong basicity and toxicity processes.
Background technology
A kind of high salt of certain enterprise generation needs a sewage work to process containing the trade effluent of triethylamine.In view of high salinity (total salt amount is 59000mg/L), the strong basicity (pH value is 11) of described trade effluent, and total content of organic carbon is only 60mg/L, wherein, concentration is that 45mg/L toxic substance triethylamine occupies more than 50% of organic pollutants, the trade effluent described in the inapplicable process of described Sewage Plant existing Aerobic biological process device.Therefore, need to seek other treatment processs to process described trade effluent.Utilize chemical oxidization method, as hydrogen peroxide oxidation, ozone oxidation, because the strong basicity of described trade effluent can cause corrosion to conversion unit, but also need to add the adjustment that a large amount of medicaments carries out pH value, therefore, trade effluent described in chemical oxidization method process is adopted obviously to be inappropriate.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind for the treatment of process of high salt low stain thing trade effluent is provided, it adopts active carbon adsorption to process: pollutent is adsorbed on its surface by the adsorptive power utilizing gac extremely strong, thus the object reaching process and remove.Utilize active carbon adsorption can by the triethylamine of described trade effluent in the basic conditions by gac Adsorption effectively, and adsorption process be by the impact of high salinity.In addition, described in the process of use active carbon adsorption, trade effluent has without the need to adjust ph, without the need to adding chemical agent, the simple advantage of technique, the water quality after process can meet the integrated wastewater discharge standard of DB 31/199-2009.
For achieving the above object, this invention takes following technical scheme.
A treatment process for high salt low stain thing trade effluent, is characterized in that, comprise the following steps:
(1) by the trade effluent input-buffer pond of high salt low stain thing, the pH of water inlet is 9.5 ~ 12;
Total salt amount of described trade effluent is 59000mg/L, pH value is 11, total content of organic carbon is 60mg/L, and wherein, concentration is that the toxic substance triethylamine of 45mg/L occupies more than 50% of organic pollutants;
(2) adopt the wastewater treatment equipment be made up of " three is standby with one " four groups of equipment, equipment of often organizing is provided with two absorbent charcoal adsorption tanks; Be connected by the pipeline that arranges and valve between group equipment with group equipment, between absorbent charcoal adsorption tank with absorbent charcoal adsorption tank, realize freely controlling of series, parallel in any switching laws between operation group equipment and for subsequent use group of equipment and each group of equipment between two absorbent charcoal adsorption tanks or isolated operation;
(3) adsorb in the absorbent charcoal adsorption tank trade effluent described in step (1) being delivered to described operation group equipment by filtered water pump, the adsorption temp of described absorbent charcoal adsorption tank is 20 DEG C ~ 50 DEG C; The residence time of described trade effluent in described absorbent charcoal adsorption tank is>=30 minutes, and flow is≤160m
3/ h;
(4) trade effluent after being adsorbed by step (3) absorbent charcoal adsorption tank is delivered to filtering basin, utilizes filter type to remove particulate matter in described trade effluent;
(5) trade effluent after being filtered by step (4) filtering basin discharges.
Further, the gac in described absorbent charcoal adsorption tank is ature of coal or coconut husk column or atypic gac, and its particle diameter is 1 ~ 5mm.
Further, energy regeneration after the charcoal absorption in described absorbent charcoal adsorption tank is saturated: remove the organism that gac adsorbs under high temperature condition, with the absorption property of activity recovery charcoal.
Further, the adsorption temp of step (3) described absorbent charcoal adsorption tank is 20 DEG C ~ 25 DEG C.
The positively effect of the treatment process of height salt low stain thing trade effluent of the present invention is:
(1) adopt active carbon adsorption to carry out processing high salt low stain thing trade effluent, the adsorptive power utilizing gac extremely strong processes described trade effluent effectively.
(2) what employing was made up of " three is standby with one " four groups of equipment processes 4000 cubic metres high salt low stain thing trade effluents wastewater treatment equipment energy day, and effluent quality meets DB 31/199-2009 integrated wastewater discharge standard completely.
(3) process high salt low stain thing trade effluent treatment process energy year of the present invention and be about 288000m
3, economic benefit and social benefit highly significant.
Embodiment
Below in conjunction with the specific implementation process continuing the treatment process introducing height salt low stain thing trade effluent of the present invention.3 embodiments and 1 Application Example are provided.But it is noted that enforcement of the present invention is not limited to following embodiment.
embodiment 1
A treatment process for high salt low stain thing trade effluent, comprises the following steps:
(1) by the trade effluent input-buffer pond of high salt low stain thing, the pH of water inlet is 9.5; Total salt amount of described trade effluent is≤59000mg/L, pH value is 11, total content of organic carbon is 60mg/L, and wherein, concentration is≤and the toxic substance triethylamine of 45mg/L occupies more than 50% of organic pollutants.
(2) wastewater treatment equipment be made up of " three is standby with one " four groups of equipment is adopted: equipment of often organizing is provided with two absorbent charcoal adsorption tanks; Described group of equipment with between group equipment, described absorbent charcoal adsorption tank is connected by the pipeline that arranges and valve with between absorbent charcoal adsorption tank, realizes freely controlling of series, parallel in any switching laws between operation group equipment and for subsequent use group of equipment and each group of equipment between two absorbent charcoal adsorption tanks or isolated operation.
(3) adsorb in the absorbent charcoal adsorption tank trade effluent described in step (1) being delivered to described operation group equipment by filtered water pump, the adsorption temp of described absorbent charcoal adsorption tank is 20 DEG C; The residence time of described trade effluent in described absorbent charcoal adsorption tank is
>=30 minutes, flow was
≤160m
3/ h.
Gac in described absorbent charcoal adsorption tank adopts ature of coal or coconut husk column or atypic gac, and the particle diameter of described gac is 1 ~ 5mm.
For avoiding secondary pollution, adsorb saturated after gac should give regeneration.The method of regeneration is: under high temperature condition, remove the organism that gac adsorbs, the absorption property of activity recovery charcoal.The activated carbon process for brine waste capable of circulation of regeneration.
In addition, the present invention also designs and utilizes a set of gac to feed online and dumping device, can carry out online discharging and charging replacing easily after charcoal absorption is saturated.Be specially: utilize a water sprayer device, new gac passed through water sprayer device water outlet Hydraulic transportation in absorbent charcoal adsorption tank; After the charcoal absorption in absorbent charcoal adsorption tank is saturated, then by the Hydraulic transportation of water sprayer device gac is drained in the special arrangement outside absorbent charcoal adsorption tank and realize being separated, then by gac saturated for absorption pack outward transport of gac and water.
(4) trade effluent after being adsorbed by step (3) absorbent charcoal adsorption tank is delivered to filtering basin, and the form of the present invention to filtering basin does not have particular requirement, as long as can meet the processing requirement of filtering; Filter type is utilized to remove particulate matter in described trade effluent.
(5) trade effluent after being filtered by step (4) filtering basin discharges.
embodiment 2
A treatment process for high salt low stain thing trade effluent, the step of embodiment 2 is substantially with embodiment 1, and difference is:
The pH that embodiment 2 step (1) is intake is 12.
Described in embodiment 2 step (3), the adsorption temp of absorbent charcoal adsorption tank is 25 DEG C.
embodiment 3
A treatment process for high salt low stain thing trade effluent, the step of embodiment 3 is substantially with embodiment 2, and difference is:
The adsorption temp of absorbent charcoal adsorption tank described in embodiment 3 step (3) is 50 DEG C (it may be noted that adsorption temp is higher, gac can be poorer to adsorptive power organic in trade effluent).
application Example 1
A treatment process for high salt low stain thing trade effluent, comprises the following steps:
(1) the high salt low stain thing trade effluent adopting Shanghai enterprise productive unit device to discharge is 40.7mg/L, pH containing triethylamine 54.6mg/L, TOC in waste water is 10.1, chlorine ion concentration 30000mg/L.
(2) described trade effluent is pumped into the active carbon adsorption column of post height 25.5cm, diameter 1.2cm, volume 28.83mL, in described active carbon adsorption column, the ratio of regenerated carbon and waste and old gac is 4:6.
(3) described trade effluent is stopped 30 minutes in described active carbon adsorption column.
(4) waste water flowed out after collecting active carbon adsorption column absorption, test by analysis, triethylamine remaining in described waste water is 9.4mg/L, TOC is 18.1mg/L.
The result of Application Example 1 proves: utilize active carbon adsorption can by the triethylamine in described trade effluent in the basic conditions with gac Adsorption effectively, and adsorption process is by the impact of high salinity.
Claims (4)
1. a treatment process for high salt low stain thing trade effluent, is characterized in that, comprise the following steps:
(1) by the trade effluent input-buffer pond of high salt low stain thing, the pH of water inlet is 9.5 ~ 12;
Total salt amount of described trade effluent is 59000mg/L, pH value is 11, total content of organic carbon is 60mg/L, and wherein, concentration is that the toxic substance triethylamine of 45mg/L occupies more than 50% of organic pollutants;
(2) adopt the wastewater treatment equipment be made up of " three is standby with one " four groups of equipment, equipment of often organizing is provided with two absorbent charcoal adsorption tanks; Be connected by the pipeline that arranges and valve between group equipment with group equipment, between absorbent charcoal adsorption tank with absorbent charcoal adsorption tank, realize freely controlling of series, parallel in any switching laws between operation group equipment and for subsequent use group of equipment and each group of equipment between two absorbent charcoal adsorption tanks or isolated operation;
(3) adsorb in the absorbent charcoal adsorption tank trade effluent described in step (1) being delivered to described operation group equipment by filtered water pump, the adsorption temp of described absorbent charcoal adsorption tank is 20 DEG C ~ 50 DEG C; The residence time of described trade effluent in described absorbent charcoal adsorption tank is>=30 minutes, and flow is≤160m
3/ h;
(4) trade effluent after being adsorbed by step (3) absorbent charcoal adsorption tank is delivered to filtering basin, utilizes filter type to remove particulate matter in described trade effluent;
(5) trade effluent after being filtered by step (4) filtering basin discharges.
2. the treatment process of high salt low stain thing trade effluent according to claim 1, is characterized in that, the gac in described absorbent charcoal adsorption tank is ature of coal or coconut husk column or atypic gac, and its particle diameter is 1 ~ 5mm.
3. the treatment process of high salt low stain thing trade effluent according to claim 2, it is characterized in that, energy regeneration after charcoal absorption in described absorbent charcoal adsorption tank is saturated: remove the organism that gac adsorbs under high temperature condition, with the absorption property of activity recovery charcoal.
4. the treatment process of high salt low stain thing trade effluent according to claim 1, is characterized in that, the adsorption temp of step (3) described absorbent charcoal adsorption tank is 20 DEG C ~ 25 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510313721.2A CN104944638A (en) | 2015-06-10 | 2015-06-10 | Treatment method for high-salinity and low-pollution industrial wastewater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510313721.2A CN104944638A (en) | 2015-06-10 | 2015-06-10 | Treatment method for high-salinity and low-pollution industrial wastewater |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105254074A (en) * | 2015-11-12 | 2016-01-20 | 中国天辰工程有限公司 | Process for treating waste water in adipic acid device |
| CN109835965A (en) * | 2019-03-07 | 2019-06-04 | 安徽华星化工有限公司 | A kind of abraum salt active carbon for refining adsorbent equipment |
| CN113044907A (en) * | 2021-02-03 | 2021-06-29 | 广东卓信环境科技股份有限公司 | Treatment method of high-salinity organic wastewater |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139976A (en) * | 2011-02-22 | 2011-08-03 | 上海化学工业区中法水务发展有限公司 | Treatment method for saliferous waste water from production process of MDI |
| CN103214056A (en) * | 2013-04-27 | 2013-07-24 | 中国海洋石油总公司 | Method for reverse osmosis concentrated water by adsorption-regeneration circular treatment |
-
2015
- 2015-06-10 CN CN201510313721.2A patent/CN104944638A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102139976A (en) * | 2011-02-22 | 2011-08-03 | 上海化学工业区中法水务发展有限公司 | Treatment method for saliferous waste water from production process of MDI |
| CN103214056A (en) * | 2013-04-27 | 2013-07-24 | 中国海洋石油总公司 | Method for reverse osmosis concentrated water by adsorption-regeneration circular treatment |
Non-Patent Citations (1)
| Title |
|---|
| 申进忠等: "含混胺废水的处理", 《化工环保》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105254074A (en) * | 2015-11-12 | 2016-01-20 | 中国天辰工程有限公司 | Process for treating waste water in adipic acid device |
| CN109835965A (en) * | 2019-03-07 | 2019-06-04 | 安徽华星化工有限公司 | A kind of abraum salt active carbon for refining adsorbent equipment |
| CN113044907A (en) * | 2021-02-03 | 2021-06-29 | 广东卓信环境科技股份有限公司 | Treatment method of high-salinity organic wastewater |
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Application publication date: 20150930 |