CN105753087A - Waste liquor pretreatment method and system - Google Patents
Waste liquor pretreatment method and system Download PDFInfo
- Publication number
- CN105753087A CN105753087A CN201610118775.8A CN201610118775A CN105753087A CN 105753087 A CN105753087 A CN 105753087A CN 201610118775 A CN201610118775 A CN 201610118775A CN 105753087 A CN105753087 A CN 105753087A
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- China
- Prior art keywords
- waste liquid
- carrier
- absorption carrier
- absorption
- evaporation
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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
-
- 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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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Treating Waste Gases (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The invention discloses a waste liquor pretreatment method. The waste liquor pretreatment method comprises the following steps: a, introducing to-be-treated waste liquor into an adsorption carrier, and adsorbing the to-be-treated waste liquor through the adsorption carrier to increase a contact area between the waste liquor and air, thereby achieving the purpose of quickly volatilizing water in the waste liquor; b, dehydrating the adsorption carrier which adsorbs the to-be-treated waste liquor in the step a in a manner of volatilizing the water, thereby separating water in the to-be-treated waste liquor form the carrier, and keeping harmful components contained in the to-be-treated waste liquor into the adsorption carrier. The waste liquor pretreatment method is safe and convenient to operate, is environmentally friendly, is low in energy consumption, is less in floor space and is good in waste liquor pre-treatment effect.
Description
Technical field
The present invention relates to field of waste liquid treatment, espespecially one waste liquid preprocess method and system.
Background technology
Development along with national economy, in people's life and production process, produced waste liquid is in complicating and variation situation development, high especially for some severity of mixing up, the waste liquid of complicated component, such as wastewater treatment concentrated solution, laboratory waste liquid, containing cyanide, arsenic, Cr VI, plumbous, sulfide, zinc, cadmium, the waste liquid of the radioactive substances such as hydrargyrum, percolate, petroleum-type and solvent height waste liquid, pharmaceutical waste liquor, high concentration ink waste liquid etc., the feature of these waste liquids is all concentration superelevation, wherein COD content is at more than 10000mg/L, adopt general Fenton method, Coagulation Method, By Bubble-floating Method, biochemical process is difficult to such waste liquid is carried out pretreatment, employing incinerating method processes, then transpiring moisture needs to consume mass energy, and it is big to there is intractability, the problem that processing cost is high.
Summary of the invention
For solving the problems referred to above, the present invention provides that a kind of easy-to-operate, energy consumption are low, it is few to take up an area space, to the good waste liquid preprocess method of waste liquid pretreating effect and system.
For achieving the above object, the technical solution used in the present invention is: a kind of waste liquid preprocess method, including
Following steps:
A. pending waste liquid is introduced in absorption carrier, treated the absorption the disposed waste liquid contact surface in order to increase waste liquid and air by absorption carrier, to reach the purpose that moisture in waste liquid quickly volatilizees；；
B. pass through to make the mode of moisture evaporation carry out processed by the absorption carrier being adsorbed with pending waste liquid in step a so that the moisture in pending waste liquid departs from carrier, and harmful components contained by pending waste liquid are stayed in absorption carrier.
Specifically, in step a, the method increasing waste liquid and air contact surfaces, including absorption carrier being pressed into bar or spherical waiting the method in space between increase carrier；
Specifically, in step b, dehydration treatment method include natural air drying dry evaporation, thermal dehydration method, dehumidifying evaporation, wind evaporation in one or more.
Specifically, described natural air drying evaporation is to be placed in sealing or unsealed environment by the absorption carrier after having adsorbed, and allows the moisture in absorption carrier naturally volatilize.
Specifically, described thermal dehydration method is to be placed in by the absorption carrier after having adsorbed in sealing or unsealed environment, and by adopting air to heat or absorption carrier is carried out processed by underground heat radiation heating, wherein heating-up temperature is 30-80 DEG C.
Specifically, described dehumidifying evaporation, wind evaporation are to be placed in by the absorption carrier after having adsorbed in sealing or unsealed environment, adopt dehumidifier, fan that air in accommodating carrier is dehumidified, processed that absorption carrier is dried.
A kind of waste liquid pretreatment system, including for waste liquid is adsorbed and dehydration accommodating carrier, for the absorption carrier that waste liquid is adsorbed, for described absorption carrier being carried out the dehydration device of processed, wherein, described absorption carrier is placed in accommodating carrier, and described absorption carrier includes but not limited to have one or more in the mud of adsorptive liquid ability, activated carbon, coal dust, wood flour, resin, asbestos.
Specifically, described accommodating carrier is sealed accommodating carrier or the accommodating carrier of non-hermetic.
Specifically, described dehydration device includes heater, dehumidifier, fan, and described heater is provided with the pipeline of conveying heat, and described pipeline is placed in accommodating carrier or in the bottom surface of accommodating carrier or wall.
Specifically, described heater is underground heat radiant heating device or air energy heater, and wherein heating-up temperature is 30-80 DEG C.
The beneficial effects of the present invention is: easy-to-operate of the present invention, environmental protection and energy consumption are low, it is little that equipment needed thereby takes up an area space, high treating effect, in the present invention, pending waste liquid is by injecting absorption carrier, make moisture can pass through to volatilize, the mode of evaporation is rapidly separated, make in waste liquid poisonous, harmful components are deposited in absorption carrier, finally absorption carrier is processed, the moisture component departed from from absorption carrier is single, it is easy to follow-up process even without process, effectively solve traditional F enton method, Coagulation Method, By Bubble-floating Method, the problem that biochemical process etc. can not effectively process；In addition present device occupation of land space is little, energy consumption is low, as adopted terrestrial surface radiation heating under closed environment, dehumidification equipment dehumidifying, fan to increase air flow method and absorption carrier is carried out dehydration, then treat the comprehensive energy consumption processed that disposes waste liquid and be only 0.15～0.18kw.h/kg.H2O, processes 50 tons of waste liquids every day, and requisite space is only 200m3；In addition the poisonous and harmful substance such as the heavy metal in pending waste liquid, organic matter is then stayed in absorption carrier, for waste liquid organic, that petroleum content height causes COD superelevation, after adopting the present invention to be departed from by water, the calorific value of absorption carrier can be promoted, burning or plasma pyrolysis expense are saved, for heavy metal waste liquid, the present invention is adopted to be departed from by water, heavy metal is stayed in absorption carrier, improve carrier metal grade, creating advantage for melting, therefore the present invention meets energy-saving and environmental protection requirement.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Drawing reference numeral illustrates: 1-houses carrier；2-dehumidifier；3-fan；4-pipeline.
Detailed description of the invention
Referring to shown in Fig. 1, the present invention, about a kind of waste liquid preprocess method, comprises the following steps:
A. pending waste liquid is introduced in absorption carrier, treated the absorption the disposed waste liquid contact surface in order to increase waste liquid and air by absorption carrier, to reach the purpose that moisture in waste liquid quickly volatilizees；
B. pass through to make the mode of moisture evaporation carry out processed by the absorption carrier being adsorbed with pending waste liquid in step a so that the moisture in pending waste liquid departs from carrier, and harmful components contained by pending waste liquid are stayed in absorption carrier.
In the present embodiment, in step a, absorption carrier includes but not limited to have one or more in the mud of adsorptive liquid ability, activated carbon, coal dust, wood flour, resin, asbestos, in order to improve the contact area of waste liquid and air, absorption carrier can make graininess, strip etc.；
In step b, dehydration treatment method includes one or more in natural air drying evaporation, thermal dehydration method, dehumidifying evaporation, wind evaporation.
Compared to existing technology, the principle of the invention is simple, the waste liquid adsorption by absorption carrier in easy-to-operate, the present invention, organic matter in waste liquid, heavy metal are adsorbed, increase and air contact surfaces simultaneously, so that moisture can be rapidly separated, effectively high-concentration waste water is carried out pretreatment, more than 1000 times can be reduced through measuring COD, waste liquid if COD is 20000mg/L carries out after pretreatment through this law, within the content of COD drops to 20mg/L, as paint having no volatile substances exists, then COD can reduce to 0.Effectively solving the problem that traditional F enton method, Coagulation Method, By Bubble-floating Method, biochemical process etc. can not effectively process, the condensed water spun off, composition is relatively easy, it is simple to follow-up process；In addition present device occupation of land space is little, energy consumption is low, as adopted the terrestrial surface radiation under closed environment to heat up, dehumidification equipment dehumidifying, fan increase air flow method and absorption carrier carried out dehydration, then the comprehensive energy consumption of liquid waste processing is only 0.15～0.18kw.h/kg.H2O, processing 50 tons of waste liquids every day, requisite space is only 200m3；In addition the poisonous and harmful substance such as the heavy metal in waste liquid, organic matter is then stayed in absorption carrier, for waste liquid organic, that petroleum content height causes COD superelevation, after adopting the present invention to be departed from by water, the calorific value of absorption carrier can be promoted, saved burning or plasma pyrolysis expense, for heavy metal waste liquid, adopting the present invention to be departed from by water, heavy metal is stayed in absorption carrier, improves carrier metal grade, creating advantage for melting, therefore the present invention meets energy-saving and environmental protection requirement.
Specifically, it is be placed in sealing or unsealed environment by the absorption carrier after having adsorbed that described natural air drying dries evaporation, allows the moisture natural evaporation in absorption carrier.
Adopt such scheme, as confirm in pending waste liquid without at normal temperatures volatile go out be likely to environment is worked the mischief poisonous and harmful substance such as methanol, benzene class, arene etc., and for processing speed without excessive demand, then can by adsorb pending waste liquid absorption carrier be placed in natural environment adopt room temperature is air-dry, dry dehydration, energy consumption uses low, simple to operate, and good purification.
Specifically, described thermal dehydration method is to be placed in by the absorption carrier after having adsorbed in sealing or unsealed environment, can be heated by employing air or absorption carrier is carried out processed by underground heat radiation heating, wherein be 30-80 DEG C as preferred embodiment heating-up temperature.
Specifically, described dehumidifying evaporation, wind evaporation are to be placed in by the absorption carrier after having adsorbed in sealing or unsealed environment, adopt dehumidifier 2, fan 3 that air in accommodating carrier is dehumidified, processed that absorption carrier is dried.
Adopt such scheme, volatile at normal temperatures go out to be likely to the poisonous and harmful substance that environment is worked the mischief when confirming pending waste liquid has, or need to accelerate the words of moisture second cosmic velocity in absorption carrier, can in the environment sealed, by householder methods such as heating, dehumidifying, winds, thus accelerating the dehydration of absorption carrier, and prevent poisonous and harmful from discharging to air, contaminated environment；If without volatilizable toxic and harmful at normal temperatures in pending waste liquid, then absorption carrier can be carried out dehydration by householder methods such as heating, dehumidifying, winds under unsealed environment；Wherein in thermal dehydration method, heating-up temperature is 30-80 DEG C, moisture evaporation speed in absorption carrier can be accelerated, retain the material that major part is adsorbed, certainly the temperature of heating is also not necessarily limited to this, as long as by the method for heat temperature raising, the moisture in absorption carrier is made to accelerate to separate, specifically, in thermal dehydration method, by the heat that underground heat radiation heating produces, collecting to guide by pipeline 4 and heat to air in accommodating carrier, air can heat then directly sends into heating in accommodating carrier by hot-air.And the evaporation that dehumidifies, wind evaporation are namely by arranging dehumidifier 2, fan 3 to absorption carrier effect, accelerate the volatilization of moisture, wherein under air-proof condition, the water vapour of volatilization is condensed and is polymerized to condensed water by dehumidifier, within the content of condensed water COD drops to 20mg/L, it is simple to follow-up process, as paint having no volatile substances exists, then COD can reduce to 0, can directly discharge.
A kind of waste liquid pretreatment system, including the absorption carrier for adsorbing pending waste liquid, for placing the accommodating carrier 1 of absorption carrier, for reducing the dehumidification equipment 2 of air humidity in accommodating carrier, for accelerating the fan 3 of air flowing in accommodating carrier, for promoting the heating input channel 4 of accommodating load body temperature, wherein, described absorption carrier is placed in accommodating carrier 1, and described absorption carrier includes but not limited to have one or more in the mud of adsorptive liquid ability, activated carbon, coal dust, wood flour, resin, asbestos.
Specifically, described accommodating carrier 1 is sealed accommodating carrier 1 or the accommodating carrier 1 of non-hermetic.
Adopt such scheme, in pending waste liquid, be likely to the toxic and harmful to environmental danger containing volatile, then can be set to accommodating carrier 1 seal；If not having above-mentioned harmful gas in pending waste liquid, namely accommodating carrier 1 is set to non-tight.
Specifically, described dehydration device includes heater, dehumidifier 2, fan 3, and wherein said heater is provided with the pipeline 4 of conveying heat, and described pipeline is placed in accommodating carrier or in the ground of accommodating carrier or wall.
Specifically, described heater is underground heat radiant heating device or air energy heater, and wherein heating-up temperature is 30-80 DEG C.
Embodiment of above is only that the preferred embodiment of the present invention is described; not the scope of the present invention is defined; under the premise designing spirit without departing from the present invention; various deformation that technical scheme is made by this area ordinary skill technical staff and improvement, all should fall in the protection domain that claims of the present invention are determined.
Claims (9)
1. a waste liquid preprocess method, it is characterised in that comprise the following steps:
A. pending waste liquid is introduced in absorption carrier, treated the absorption the disposed waste liquid contact surface in order to increase waste liquid and air by absorption carrier, to reach the purpose that moisture in waste liquid quickly volatilizees；
B. pass through to make the mode of moisture evaporation carry out processed by the absorption carrier being adsorbed with pending waste liquid in step a so that the moisture in pending waste liquid departs from carrier, and harmful components contained by pending waste liquid are stayed in absorption carrier.
2. waste liquid preprocess method according to claim 1, it is characterised in that in step a, is pressed into bar or spherical by absorption carrier；In step b, dehydration treatment method include nature dry evaporation, thermal dehydration method, dehumidifying evaporation, wind evaporation in one or more.
3. waste liquid preprocess method according to claim 2, it is characterised in that it is be placed in sealing or unsealed environment by the absorption carrier after having adsorbed that described natural air drying dries evaporation, allows the moisture natural evaporation in absorption carrier.
4. waste liquid preprocess method according to claim 2, it is characterized in that, described thermal dehydration method is to be placed in by the absorption carrier after having adsorbed in sealing or unsealed environment, by adopting air to heat or absorption carrier is carried out processed by underground heat radiation heating.
5. waste liquid preprocess method according to claim 2, it is characterized in that, described dehumidifying evaporation, wind evaporation are to be placed in by the absorption carrier after having adsorbed in sealing or unsealed environment, adopt dehumidifier, fan that absorption carrier is dehumidified, processed of drying.
6. a waste liquid pretreatment system, it is characterized in that, including for waste liquid is adsorbed and dehydration accommodating carrier, for the absorption carrier that waste liquid is adsorbed, for described absorption carrier is accelerated volatilization processed dehydration device, wherein, described absorption carrier is placed in accommodating carrier.
7. waste liquid pretreatment system according to claim 6, it is characterised in that described accommodating carrier is sealed accommodating carrier or the accommodating carrier of non-hermetic.
8. waste liquid pretreatment system according to claim 7, it is characterized in that, described dehydration device includes heater, dehumidifier, fan, described heater is provided with the pipeline of conveying heat, described pipeline is placed in accommodating carrier, or be arranged on the bottom surface of accommodating carrier, or it is arranged in the wall of accommodating carrier.
9. waste liquid pretreatment system according to claim 8, it is characterised in that described heater is underground heat radiant heating device or air energy heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610118775.8A CN105753087A (en) | 2016-03-02 | 2016-03-02 | Waste liquor pretreatment method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610118775.8A CN105753087A (en) | 2016-03-02 | 2016-03-02 | Waste liquor pretreatment method and system |
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| Publication Number | Publication Date |
|---|---|
| CN105753087A true CN105753087A (en) | 2016-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610118775.8A Pending CN105753087A (en) | 2016-03-02 | 2016-03-02 | Waste liquor pretreatment method and system |
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| Country | Link |
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| CN (1) | CN105753087A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109052529A (en) * | 2018-10-30 | 2018-12-21 | 宜禾股份有限公司 | A kind of internal blowing-type dyestuff waste liquid vaporising device |
| CN109231321A (en) * | 2018-10-30 | 2019-01-18 | 宜禾股份有限公司 | A kind of cloth dyeing waste liquid evaporating |
| CN111018039A (en) * | 2020-01-17 | 2020-04-17 | 上海盛弘环境科技有限公司 | Harmless and recycling treatment method for high-concentration organic matter waste liquid |
-
2016
- 2016-03-02 CN CN201610118775.8A patent/CN105753087A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109052529A (en) * | 2018-10-30 | 2018-12-21 | 宜禾股份有限公司 | A kind of internal blowing-type dyestuff waste liquid vaporising device |
| CN109231321A (en) * | 2018-10-30 | 2019-01-18 | 宜禾股份有限公司 | A kind of cloth dyeing waste liquid evaporating |
| CN111018039A (en) * | 2020-01-17 | 2020-04-17 | 上海盛弘环境科技有限公司 | Harmless and recycling treatment method for high-concentration organic matter waste liquid |
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Application publication date: 20160713 |