CN106045146B - A kind of processing method of house refuse exudation sewage - Google Patents
A kind of processing method of house refuse exudation sewage Download PDFInfo
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- CN106045146B CN106045146B CN201610628268.9A CN201610628268A CN106045146B CN 106045146 B CN106045146 B CN 106045146B CN 201610628268 A CN201610628268 A CN 201610628268A CN 106045146 B CN106045146 B CN 106045146B
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
- B01D53/261—Drying gases or vapours by adsorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/818—Employing electrical discharges or the generation of a plasma
-
- 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
- C02F1/38—Treatment of water, waste water, or sewage by centrifugal separation
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
- C02F1/4693—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis electrodialysis
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
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Abstract
The invention discloses a kind of processing method of house refuse exudation sewage, steps are as follows: (1) vacuumize；(2) dry, into low temperature plasma gas purification device deodourizing；(3) enter DC electrolysis device to be electrolysed；(4) oxidant and flocculant are added under stiring, carry out oxidative decoloration, flocculating setting；(5) slurry separation is carried out using slag pulp selector, obtains cleaner liquid；(6) filtering with microporous membrane, discharge are used；Or: after filtering with microporous membrane, then pass through electrodialysis plant progress electrodialysis, after electrodialysis, discharge.The processing method of house refuse exudation sewage of the invention preferably resolves the odorous gas processing problem of sewage；It is adsorbed by electrolysis, effectively eliminates the soluble salt and organic components in sewage；It is efficiently domestic water by sewage purification by filtering with microporous membrane and electrodialysis.Processing method of the invention, overcoming other processing methods such as activated sludge, time-consuming, low efficiency, the cumbersome drawback of technique.
Description
Technical field
The present invention relates to a kind of processing methods of house refuse exudation sewage, belong to technical field of sewage.
Background technique
During domestic rubbish disposal, a certain amount of sewage can be oozed out, in the sewage composition, containing higher inorganic salts and
Organic compound ingredient；These ingredients, which must be removed, can just meet environment protection emission requirement.Currently used processing method is mainly
Activated sludge method, but there are more problems in actual production for this method: time-consuming for process flow, it is difficult to which all degradation is organic
Object, it is also difficult to which inorganic salts therein are fallen in removing, and making that treated, sewage is difficult qualified discharge.
Summary of the invention
For the above-mentioned prior art, the present invention provides a kind of processing methods of house refuse exudation sewage, use this hair
Bright method treated sewage, meets environment protection emission requirement, reaches drinking water standard.
The present invention is achieved by the following technical solutions:
A kind of processing method of house refuse exudation sewage, comprising the following steps:
(1) it takes house refuse to ooze out sewage, controls its temperature at 25 DEG C~95 DEG C (preferably 50 DEG C), under agitation,
Vacuumize that (gas of abjection is mainly H (with vacuum pump) to remove escaping gas2S, the odorous gas such as mercaptan), vacuum degree model
Enclose -0.01~-0.1MPa；
Preferably, house refuse exudation sewage is added in collet agitator tank and is stirred, pass through conduction oil in collet or water control
Make its temperature；
Further, it before vacuumizing, adjusts the pH value of sewage and (is adjusted by pH adjusting agent, pH adjusting agent is to 3~10
Hydrochloric acid or sodium hydroxide solution)；
Further, the pumpdown time is 2~4 hours；
(2) gas of extraction is vacuumized, dry (dry in drying chamber, drying chamber can be one or more；It uses
Desiccant can be acid desiccant or alkaline desiccant), the gas after drying is mixed into air, and (mixed volume of air is mixing
The 75%~85% of total volume afterwards), into low temperature plasma gas purification device, (control flow is in 10~30M3/ min), it carries out
Low-temperature plasma deodourizing (odorous gas molecule is oxidized to the ingredients such as carbon dioxide, sulfur dioxide, water by the oxygen in air)
(technique of low-temperature plasma are as follows: operating voltage is 380V alternating current, and operating temperature is 120 DEG C~140 DEG C), purified gas
Idle discharge is put by chimney；
(3) sewage after evacuated degassing is electrolysed into DC electrolysis device, 2~6 hours (electricity of electrolysis time
In solution preocess, lotus positive electricity ingredient is attached on electrolysis electrode cathode plate in sewage, and bear electricity ingredient is attached to electrolysis electrode anode
On plate)；After electrolysis, solid content drops to 1g/L or less in sewage；
(4) sewage after above-mentioned electrolysis adds oxidant and flocculant into chemical reaction pot under stiring, carries out oxygen
Change decoloration, flocculating setting；
The oxidant is selected from sodium hypochlorite, Na2Fe04, potassium ferrate, potassium permanganate, and the additive amount of oxidant is 20
~110mg/L sewage (preferably 30~50mg/L)；
The flocculant is selected from anionic polyacrylamide, poly-ferric chloride, ferrous sulfate, alum, cation polypropylene
Amide, hydrogen peroxide；Anionic polyacrylamide, cationic polyacrylamide additive amount be 0.5~2mg/L sewage, polymerize chlorine
Change iron, ferrous sulfate, alum, hydrogen peroxide additive amount be 5mg/L sewage；
Further, the time of oxidative decoloration is 0.5h~2h, and the time of flocculating setting is 2h~3h；
(5) treated sewage carries out slurry separation using slag pulp selector, obtains cleaner liquid；
Preferably, the slag pulp selector is plate and frame filter or centrifugal type slag-slurry seperator；
(6) above-mentioned cleaner liquid, use filtering with microporous membrane (filtering out suspended matter) (aperture of miillpore filter for 0.22 μm~
0.8 μm), filtered water quality can reach life water quality standard, discharge；After filtering with microporous membrane, then pass through electrodialysis plant progress
(electrodialysis process of optimization is 0.5~3.0kg/cm of operating pressure for electrodialysis (further removal impurities in water ingredient)2, operation
Voltage, electric current 100~250V, 1~3A), after electrodialysis, reach drinking water standard, discharges.
The processing method of house refuse exudation sewage of the invention, using " vacuumizing+low-temperature plasma gasification+electrolysis+oxygen
Change+micro porous filtration+electrodialysis " treatment process preferably resolves the odorous gas processing problem of sewage；It is adsorbed by electrolysis,
Effectively eliminate the soluble salt and organic components in sewage；By filtering with microporous membrane and electrodialysis, efficiently by sewage
Purification is domestic water.Processing method of the invention, overcoming other processing methods such as activated sludge, time-consuming, low efficiency, work
The cumbersome drawback of skill.
The processing method of house refuse exudation sewage of the invention, using vacuumizing degassing and low temperature plasma gas purifies
Device handles the stink in sewage, is a kind of efficient gas purification method.Since odorous gas component is complicated and uncertain, very
It is difficult with a kind of method that stink processing is clean.Low temperature plasma gas air cleaning is the efficient gas just to grow up recently
Body purification techniques.By to the air ionization containing odorous gas ingredient, O, N, scent molecule etc. in gas be ionized it is charged,
Complicated chemical reaction process occurs, final product is degraded to element oxide, to effectively remove stink peculiar smell, avoids
To atmosphere pollution.Using electrolysis unit, under direct current electro ultrafiltration, salinity, organic molecule, suspended particulate in sewage, respectively with
Solid form is adsorbed on electrode plate, to realize separation of solid and liquid, greatly reduces the impurity solid content in sewage.By to electricity
Pole plate cleans the recycling, it can be achieved that electrolysis unit.Sewage after electrolysis unit is electrolysed, the impurity component contained are big
Amount removal, then oxidizing, flocculating setting is added, it, finally will be at sewage using electrodialysis plant by membrane separation device
Reason is drinking water standard, to realize high-effect high-quality low cost the dirty water decontamination handles.
Specific embodiment
Below with reference to embodiment, the present invention is further illustrated.
Instrument involved in following embodiments, reagent, material etc. are unless otherwise noted existing in the prior art
Conventional instrument, reagent, material etc., can be obtained by regular commercial sources.Experimental method involved in following embodiments, inspection
Survey method etc. is unless otherwise noted existing routine experiment method in the prior art, detection method etc..
The processing method of 1 house refuse of embodiment exudation sewage
Steps are as follows:
(1) it takes house refuse to ooze out sewage, is added in collet agitator tank, adjusting pH value with sodium hydroxide solution is 7.0, control
Its temperature is made at 50 DEG C, under agitation, is vacuumized with vacuum pump to remove escaping gas, vacuum degree -0.085MPa, when
Between 3 hours；
(2) gas for vacuumizing extraction, dry in drying chamber, (desiccant uses quick lime), the gas after drying are mixed
Enter air (mixed volume of air be mixing after total volume 80%), into low temperature plasma gas purification device (control stream
Amount is in 10~30M3/ min), carrying out low-temperature plasma deodourizing, (operating voltage is 380V alternating current, and operating temperature is 120 DEG C
~140 DEG C), purified gas puts idle discharge by chimney；
(3) sewage after evacuated degassing is electrolysed into DC electrolysis device, and electrolysis time 5 hours；Electrolysis
Afterwards, sewage sampling is analyzed, and solid content is less than 1g/L；
(4) sewage after above-mentioned electrolysis adds Na2Fe04 (additive amount 30mg/ into chemical reaction pot under stiring
L sewage) and high molecular weight polyacrylamide (additive amount is 1mg/L sewage), carry out oxidative decoloration (3 hours time), flocculation is sunk
It drops (1 hour time)；
(5) treated sewage carries out slurry separation using centrifugal type slag-slurry seperator, obtains cleaner liquid；
(6) above-mentioned cleaner liquid uses filtering with microporous membrane (aperture of miillpore filter is 0.5 μm), and filtered water quality can
Reach life water quality standard, discharges；After filtering with microporous membrane, then pass through electrodialysis plant progress electrodialysis (operating pressure 2.0kg/
cm2, operate voltage, electric current 150V, 2A), after electrodialysis, reach drinking water standard, discharges.
The processing method of 2 house refuse of embodiment exudation sewage
Steps are as follows:
(1) it takes house refuse to ooze out sewage, is added in collet agitator tank, adjusting PH with sodium hydroxide is 7.5, controls its temperature
Degree is at 60 DEG C, under agitation, is vacuumized with vacuum pump to remove escaping gas, vacuum degree -0.085MPa, the time 4 is small
When；
(2) gas for vacuumizing extraction, dry in drying chamber (desiccant uses quick lime), the gas after drying is mixed into
Air (mixed volume of air be mixing after total volume 75%), into low temperature plasma gas purification device (control flow
In 10~15M3/ min), carry out low-temperature plasma deodourizing (operating voltage be 380V alternating current, operating temperature be 120 DEG C~
140 DEG C), purified gas puts idle discharge by chimney；
(3) sewage after evacuated degassing is electrolysed into DC electrolysis device, and electrolysis time 6 hours；Electrolysis
Afterwards, sewage sampling is analyzed, and solid content is less than 1g/L；
(4) sewage after above-mentioned electrolysis adds potassium ferrate (additive amount 40mg/ into chemical reaction pot under stiring
L sewage) and alum (additive amount is 5mg/L sewage), carry out oxidative decoloration (3 hours time), flocculating setting (1 hour time)；
(5) treated sewage carries out slurry separation using centrifugal type slag-slurry seperator, obtains cleaner liquid；
(6) above-mentioned cleaner liquid uses filtering with microporous membrane (aperture of miillpore filter is 0.22 μm), and filtered water quality can
Reach life water quality standard, discharges；After filtering with microporous membrane, then pass through electrodialysis plant progress electrodialysis (operating pressure 0.5kg/
cm2, operate voltage, electric current 100V, 1A), after electrodialysis, reach drinking water standard, discharges.
The processing method of 3 house refuse of embodiment exudation sewage
Steps are as follows:
(1) it takes house refuse to ooze out sewage, is added in collet agitator tank, adjusting pH value with sodium hydroxide solution is 6.5, control
Its temperature is made at 65 DEG C, under agitation, is vacuumized with vacuum pump to remove escaping gas, vacuum degree -0.085MPa, when
Between 4 hours；
(2) gas for vacuumizing extraction, dry (desiccant is quick lime), the gas after drying are mixed into sky in drying chamber
Gas (mixed volume of air be mixing after total volume 85%), into low temperature plasma gas purification device (control flow exist
10~15M3/ min), carry out low-temperature plasma deodourizing (operating voltage be 380V alternating current, operating temperature be 120 DEG C~
140 DEG C), purified gas puts idle discharge by chimney；
(3) sewage after evacuated degassing is electrolysed into DC electrolysis device, and electrolysis time 5 hours；Electrolysis
Afterwards, sewage sampling is analyzed, and solid content is less than 1g/L；
(4) sewage after above-mentioned electrolysis adds potassium permanganate (additive amount 50mg/ into chemical reaction pot under stiring
L sewage) and mass concentration be 30% hydrogen peroxide (additive amount is 5mg/L sewage), carry out oxidative decoloration (3 hours time), wadding
(1 hour time) drops in retrogradation；
(5) treated sewage carries out slurry separation using centrifugal type slag-slurry seperator, obtains cleaner liquid；
(6) above-mentioned cleaner liquid uses filtering with microporous membrane (aperture of miillpore filter is 0.8 μm), and filtered water quality can
Reach life water quality standard, discharges；After filtering with microporous membrane, then pass through electrodialysis plant progress electrodialysis (operating pressure 3.0kg/
cm2, operate voltage, electric current 250V, 3A), after electrodialysis, reach drinking water standard, discharges.
Before the processing of above-described embodiment 1,2,3 and the indices of treated sewage are as shown in table 1.It can see by table 1,
Using processing method of the invention treated sewage indices, reach life water quality standard, treatment effect is aobvious
It writes.
Table 1
Above-mentioned, although specific embodiments of the present invention have been described in conjunction with the embodiments, not protects to the present invention
The limitation of range, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art
The various modifications or changes that can be made are not needed to make the creative labor still within protection scope of the present invention.
Claims (10)
1. a kind of processing method of house refuse exudation sewage, it is characterised in that: the following steps are included:
(1) it takes house refuse to ooze out sewage, controls its temperature at 25 DEG C~95 DEG C, under agitation, vacuumize, vacuum degree model
Enclose -0.01~-0.1MPa；
(2) vacuumize the gas of extraction, it is dry, it is dry after gas be mixed into air, into low temperature plasma gas purification device,
Low-temperature plasma deodourizing is carried out, purified gas puts idle discharge by chimney；
(3) sewage after evacuated degassing is electrolysed into DC electrolysis device, and electrolysis time 2~6 hours；
(4) sewage after above-mentioned electrolysis adds oxidant and flocculant into chemical reaction pot under stiring, and it is de- to carry out oxidation
Color, flocculating setting；
The oxidant is selected from sodium hypochlorite, Na2Fe04, potassium ferrate, potassium permanganate；
The flocculant is selected from anionic polyacrylamide, poly-ferric chloride, ferrous sulfate, alum, cationic polyacrylamide；
(5) treated sewage carries out slurry separation using slag pulp selector, obtains cleaner liquid；
(6) above-mentioned cleaner liquid, using filtering with microporous membrane, discharge；Or: after filtering with microporous membrane, then by electrodialysis plant into
Row electrodialysis, after electrodialysis, discharge.
2. the processing method of house refuse exudation sewage according to claim 1, it is characterised in that: in the step (1),
Before vacuumizing, the pH value of sewage is adjusted to 3~10.
3. the processing method of house refuse exudation sewage according to claim 1, it is characterised in that: in the step (2),
Mixed volume of air is 75%~85% of total volume after mixing.
4. the processing method of house refuse exudation sewage according to claim 1, it is characterised in that: in the step (2),
Gas after drying is mixed into air, when into low temperature plasma gas purification device, controls flow in 10~30m3/min.
5. the processing method of house refuse exudation sewage according to claim 1, it is characterised in that: in the step (2),
Carry out technique when low-temperature plasma deodourizing are as follows: operating voltage is 380V alternating current, and operating temperature is 120 DEG C~140 DEG C.
6. the processing method of house refuse exudation sewage according to claim 1, it is characterised in that: in the step (4),
The additive amount of oxidant is 20~110mg/L sewage.
7. the processing method of house refuse exudation sewage according to claim 1, it is characterised in that: in the step (4),
Anionic polyacrylamide, cationic polyacrylamide additive amount be 0.5~2mg/L sewage, poly-ferric chloride, sulfuric acid are sub-
Iron, alum additive amount be 5mg/L sewage.
8. the processing method of house refuse exudation sewage according to claim 1, it is characterised in that: in the step (4),
The time of oxidative decoloration is 0.5h~2h, and the time of flocculating setting is 2h~3h.
9. the processing method of house refuse exudation sewage according to claim 1, it is characterised in that: in the step (6),
The aperture of miillpore filter is 0.22 μm~0.8 μm.
10. the processing method of house refuse exudation sewage according to claim 1, it is characterised in that: the step (6)
In, electrodialysis process is 0.5~3.0kg/cm of operating pressure2, operate voltage, electric current 100~250V, 1~3A.
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| US5895576A (en) * | 1996-09-06 | 1999-04-20 | Sharp Kabushiki Kaisha | Method and apparatus for wastewater treatment by chemical reaction of reactive filler and propagated microorganisms |
| CN101920041A (en) * | 2009-06-11 | 2010-12-22 | 张俊杰 | Comprehensive disinfection, deodorization and sewage purification cycling system for refuse storage area |
| CN202246195U (en) * | 2011-09-26 | 2012-05-30 | 厦门大学 | Device for treating landfill leachate |
| CN102688670A (en) * | 2012-06-13 | 2012-09-26 | 长沙中联重科环卫机械有限公司 | Method and system for processing bad smell |
| CN103285718A (en) * | 2013-05-16 | 2013-09-11 | 北京朗净时代环境科技有限公司 | Deodorizing and sterilizing device for low-temperature plasma garbage station |
| CN105289226A (en) * | 2015-10-28 | 2016-02-03 | 上海大学 | Purification system of garbage compression box and leachate stench gas in garbage transfer station |
-
2016
- 2016-08-01 CN CN201610628268.9A patent/CN106045146B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5895576A (en) * | 1996-09-06 | 1999-04-20 | Sharp Kabushiki Kaisha | Method and apparatus for wastewater treatment by chemical reaction of reactive filler and propagated microorganisms |
| CN101920041A (en) * | 2009-06-11 | 2010-12-22 | 张俊杰 | Comprehensive disinfection, deodorization and sewage purification cycling system for refuse storage area |
| CN202246195U (en) * | 2011-09-26 | 2012-05-30 | 厦门大学 | Device for treating landfill leachate |
| CN102688670A (en) * | 2012-06-13 | 2012-09-26 | 长沙中联重科环卫机械有限公司 | Method and system for processing bad smell |
| CN103285718A (en) * | 2013-05-16 | 2013-09-11 | 北京朗净时代环境科技有限公司 | Deodorizing and sterilizing device for low-temperature plasma garbage station |
| CN105289226A (en) * | 2015-10-28 | 2016-02-03 | 上海大学 | Purification system of garbage compression box and leachate stench gas in garbage transfer station |
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