CN105060627B - Chemical pharmacy wastewater comprehensive treatment system - Google Patents
Chemical pharmacy wastewater comprehensive treatment system Download PDFInfo
- Publication number
- CN105060627B CN105060627B CN201510469602.6A CN201510469602A CN105060627B CN 105060627 B CN105060627 B CN 105060627B CN 201510469602 A CN201510469602 A CN 201510469602A CN 105060627 B CN105060627 B CN 105060627B
- Authority
- CN
- China
- Prior art keywords
- pond
- waste water
- pool
- water
- wastewater
- 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.)
- Active
Links
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The invention discloses a chemical pharmacy wastewater comprehensive treatment system. The system is characterized in that the outlet of an ultrahigh concentration wastewater collection pool is connected with an MVR evaporator, evaporated water enters an evaporated water collection pool, and the evaporated water collection pool is connected with a buffer pool and a comprehensive equalization pool; the front portion of a high concentration wastewater collection pool is provided with an oil separation zone, the water outlet of the high concentration wastewater collection pool is connected with a first high concentration water sedimentation pool, and wastewater from the first high concentration water sedimentation pool enters the buffer pool; and the buffer pool is connected with a multidimensional electrocatalysis reactor, the water outlet of the multidimensional electrocatalysis reactor is connected with an inner electrolysis bath, the water outlet of the inner electrolysis bath is connected with a catalytic oxidation tank, the water outlet of the catalytic oxidation tank is connected with a pH adjusting pool, the water outlet of the pH adjusting pool is connected with a second high concentration water sedimentation pool, the outlet of the second high concentration water sedimentation pool is connected with a transfer pool, and the transfer pool is connected with the comprehensive equalization pool; and a low concentration wastewater collection pool is connected with the sedimentation pools, and a sedimentation pool is connected with the comprehensive equalization pool. The system improves the biodegradability of wastewater.
Description
Technical field
The present invention relates to a kind of method of wastewater treatment, more particularly to a kind of chemical pharmaceutical factory's wastewater comprehensive treatment system.
Background technology
The waste water of chemical pharmaceutical factory mostlys come from medical intermediate production waste water, equipment cleaning waste water, facility floor
Cleaning waste water, sanitary sewage, wherein sanitary sewage are mainly derived from the draining in plant area dining room, lavatory, bathroom etc. again.
Medical intermediate production waste water main source has：
1. technique waste water, such as various crystalline mother solutions, phase inversion mother solution, absorption residual liquid etc.；
2. flushing waste water, washings including the equipment such as reactor, filter, catalyst carrier, resin and part and
Ground, washing waste water of apparatus etc.；
3. residual liquid is reclaimed, and residual liquid etc. is reclaimed including solvent recovery residual liquid, side-product；
4. supporting process waste water, such as seals water, overflows water etc..
The characteristics of medical intermediate production waste water, can substantially be summarized as follows：
1. the pollutant of waste water not only have Conventional pollution (such as COD, SS, ammonia nitrogen etc.), and also characteristic contamination is (such as trichlorine
Methane, tetrahydrofuran, acetonitrile etc.)；The pollutant load of waste water is high, the COD of some waste water at concentrations up to 300000～
400000mg/L。
2. waste water includes unreacted raw material, solvent, with substantial amounts of compound, compound with chemical reaction not
With and it is different (for example：Nitrification, ammonification, halogenation, sulfonation, alkylation reaction).Chemosynthesis waste water is not simultaneous with biological treatment system
Hold, because in biochemical treatment system, compound is too high to the concentration of unit volume Biomass or toxicity is too big, therefore is giving birth to
Generally requiring before thing process carries out Chemical Pretreatment to chemosynthesis waste water.
3. waste component is complicated, containing the material that microorganism is difficult to degrade or even have microorganism high inhibition effect, such as anti-
Answer organic or inorganic salt, midbody product, residual solvent, drug residue and catabolite that process adds etc. in waste water all
There is certain density presence, the growth of microorganism can be suppressed in the case of low dose, make biochemical treatment system start domestication
Phase extends, reduces anaerobic gas generation amount and biochemical treatment efficiency.
4. as waste water contains drug component, there is bio-toxicity, the biodegradability of waste water is poor.
5. the pH value change of waste water is frequent, and fluctuation range is big；PH value of waste water is in acidity, or in alkalescence.
6. effluent part SO4 2-、Cl-Concentration is higher, for example：SO in waste water4 2-And Cl-It is at concentrations up to 40000mg/L, high
Salinity has a certain impact to biochemical reaction efficiency.
7. the nutrient source of waste water is not enough (predominantly C, N, P are out of proportion).
8. drainage point is more, effluent part intermittent discharge, Acidity of Aikalinity and temperature change are larger, needs larger collection to adjust dress
Put.
In sum, chemical pharmacy terminal waste water belongs to that water quality is complicated, intractable organic wastewater, and wastewater treatment is mainly stood
The biochemical treatment for being enough to relatively economical is main process route, at the same time needs to take some necessary pre- places for waste water characteristic
Reason measure, to guarantee Biochemical Treatment.
The content of the invention
For existing problem, it is an object of the invention to provide a kind of total system of chemical pharmacy waste water, Jing
The waste water energy qualified discharge crossed after the processing system is processed.
To achieve these goals, the technical scheme is that：A kind of chemical pharmacy wastewater comprehensive treatment system, including
Pretreatment system and biochemical treatment system, it is characterised in that：The pretreatment system:Including low concentration wastewater collecting pit, highly concentrated
Degree wastewater collection pond and ultrahigh concentration wastewater collection pond；
The ultrahigh concentration wastewater collection pond outlet is connected with MVR vaporizers, and evaporation water enters evaporation water collecting pit, described
Evaporation water collecting pit is connected with Buffer Pool and comprehensive adjustment pond；
The front portion of the high-concentration waste water collecting pit is provided with oil removal area, and the outlet of high-concentration waste water collecting pit is high with first
Concentrated water sedimentation tank is connected, and the waste water in the first highly concentrated water precipitation pond enters the Buffer Pool；
The Buffer Pool is connected with multi-dimensional electro-catalytic reactor, the outlet and Inner electrolysis of the multi-dimensional electro-catalytic reactor
Groove is connected, and the outlet of Inner electrolysis groove is connected with catalysis oxidation groove, and the outlet of the catalysis oxidation groove is connected with pH adjustment pond,
The outlet in the pH adjustment pond is connected with the second highly concentrated water precipitation pond, outlet and the transfer pond in the second highly concentrated water precipitation pond
It is connected, the transfer pond is connected with comprehensive adjustment pond；
The low concentration wastewater collecting pit is connected with sedimentation tank, and sedimentation tank is connected with comprehensive adjustment pond；
Hydrolysis acidification pool that the biochemical treatment system includes being sequentially connected, micro- oxygen pond, desulfurization sedimentation tank, UASB anaerobism are anti-
Ying Chi, anaerobic precipitation pond, anoxic pond, Aerobic Pond, second pond, ABFT ponds, final deposition pool and clear water reserviors, wherein hydrolysis acidification pool with it is comprehensive
Close regulating reservoir to be connected, the partial sludge in mixed liquor and second pond in Aerobic Pond is back to anoxic pond.
Grille well is provided with before the low concentration wastewater collecting pit.
Using such scheme, plant area's terminal waste water is divided three classes by we, and one is that ultrahigh concentration waste water COD is more than 80,000 mg/
(COD is generally L：80000～400,000 mg/L)；Two is high-concentration waste water (2000mg/L≤COD≤80,000 mg/L)；Three is low concentration
Waste water COD is less than or equal to 2,000 mg/L (the average 2000mg/L of COD).
Ultrahigh concentration waste water predominantly produces waste water and has high COD contents, and containing organic solvent, salinity is (averagely about
13%) or it is poisonous, the features such as biochemical is poor.Into ultrahigh concentration wastewater collection pond.
Also it is production waste water in high-concentration waste water, mainly contains organic solvent (methanol, acetone, chloroform, dichloromethane
Alkane, tetrahydrofuran, isobutyl amine, nitromethane, DMF, acetonitrile etc.), medicine intermediate and 2%～8% or so salinity (chlorination
Sodium about, sodium sulfate about)；PH value 3～9.Into high-concentration waste water collecting pit.
Low concentration wastewater water quality situation：Including equipment and terrace flushing water, experimental analysiss detection waste water, sanitary wastewater etc..
Low concentration wastewater collecting pit is entered through grille well.
Ultrahigh concentration waste water is after MVR evaporations, if evaporation water COD ＞ 30000mg/L or B/C ＜ 0.25, evaporation water enters
Enter pretreatment of High Concentration Wastewater system (i.e. multi-dimensional electro-catalytic, Inner electrolysis, catalytic oxidizing equipment).If evaporation water COD≤
30000mg/L or B/C >=0.25, evaporation water can be directly entered comprehensive adjustment pond, into biochemical treatment system.
High-concentration waste water by plant area enter high-concentration waste water collecting pit, first pass around oil removal area, remove oil slick after.By exposing
Gas agitating, adjusts the waste water quality water yield, is then become a mandarin to the first highly concentrated water precipitation pond by elevator pump, into the first high concentration
Coagulant and flocculant is added between sedimentation tank.In the first highly concentrated water precipitation pond precipitation slag thing, after reducing concentration of suspension, enter
Buffer Pool, boosted pump enter multi-dimensional electro-catalytic response system.
Water pump outlet pipe is lifted in Buffer Pool and adds hydrochloric acid, by pipe-line mixer, pH value control is made in acid (pH3～4).
In electrocatalytic reaction system, waste water under multi-dimensional electric field and pole plate, the effect of granule electrode catalysis activity, send out by the Organic substance of difficult degradation
Raw electrochemical oxidation-reduction reaction, COD are degraded.Waste water enters Inner electrolysis groove.
Organic substance in waste water Inner electrolysis groove waste water is partially removed, and COD is reduced, and the biodegradability of waste water is obtained
Improve.
To catalysis oxidation groove, catalytic oxidation belongs to high-level oxidation technology to the water outlet of Inner electrolysis groove, in certain pH value, temperature strip
Under part and catalyst action, the Organic substance of multiple types of degrading, so as to mitigate its inhibitory action to microorganism, is biochemical processing system
Effective degradable organic pollutant of uniting creates conditions.
The water outlet of catalysis oxidation groove flows into pH adjustment pond, and Jing adds mixed in hydrochloric acid, pH value controlled 8～8.5, is then added
PAC, PAM, due to sinking containing the calcium sulfate for generating, the aluminium ion absorption calcium sulfate in PAC, and then generation aluminium calcium sulfate in waste water
Starch.
PH adjustment pond water outlets flow automatically to the second highly concentrated water precipitation pond, and the sedimentation tank selects vertical sedimentation tank, supernatant water gravity flow
To transfer pond, then amount is into comprehensive adjustment pond.Subsequently into biochemical treatment system, final qualified discharge.
Also include accident pool, the accident pool is connected with high-concentration waste water collecting pit, ultrahigh concentration wastewater collection pond respectively,
Meanwhile, the accident pool is connected with low concentration wastewater collecting pit through grille well.
Waste water is produced after accident pool generation accident and collects accident pool temporarily, then respectively enter after the measurement of COD
Corresponding ultrahigh concentration wastewater collection pond, high-concentration waste water collecting pit and low concentration wastewater collecting pit.
In such scheme：Also include materialized mud pond, the first highly concentrated water precipitation pond and the second highly concentrated water precipitation pond
Sludge enter materialized mud pond, then obtain mud cake, the Chamber Type Diaphragm Filter Press pressure through Chamber Type Diaphragm Filter Press filter pressing
The filtrate (liquid of filter is connected to high-concentration waste water collecting pit.
In such scheme：Aeration dress is equipped with the ultrahigh concentration wastewater collection pond and high-concentration waste water collecting pit
Put.Arranging aerator carries out aeration, makes not produce precipitation, even water quality and the water yield, biodegradability of increasing water quality.
In such scheme：Also include biochemical sludge pond, the sludge of the sedimentation tank of the low concentration wastewater pretreatment is entered
The biochemical sludge pond；In biochemical treatment system, the hydrolysis acidification pool, desulfurization sedimentation tank, UASB anaerobic reation pools, anaerobism
Sedimentation tank, second pond, ABFT ponds, the sludge of final deposition pool enter biochemical sludge pond.
In such scheme, the bottom in the comprehensive adjustment pond is provided with aerator.Intermittent aerating, plays regulation water
Matter, improves the effect of biochemical.
High-concentration waste water, ultrahigh concentration waste water and low concentration wastewater respectively enter high-concentration waste water collecting pit, ultrahigh concentration
Wastewater collection pond and low concentration wastewater collecting pit；The superb high-concentration waste water is more than the waste water of 80,000 mg/L, high concentration for COD
Waste water refers to the waste water that COD is ten thousand mg/L of 2000-8, and low concentration wastewater refers to waste water of the COD less than 2000mg/L.
In such scheme：In catalysis oxidation pond, it is 12 to add Calx to adjust pH, and temperature is room temperature, and catalyst is iron salt；
The pH of the solution of multi-dimensional electro-catalytic reactor is 3-4.
In such scheme：Powdered Activated Carbon is added in the Aerobic Pond, and dosage is 50-100g/L waste water.Add
Active carbon powder, improves the adsorption-flocculation performance of sludge, so as to improve the removal effect of COD.
The invention has the beneficial effects as follows：Present invention process flow process is simple, and construction cost is low, and Technology is advanced, process is pre-
After process, the clearance of COD can reach 60%, and the clearance of sulfate radical can reach 50%, improve the ratio of BOD/COD, that is, carry
The high biodegradability of waste water, realizes the purpose of high concentration hard-degraded organic waste water pretreatment, final after biochemical treatment
So that discharged wastewater met the national standard.
Description of the drawings
Fig. 1 is the process chart of pretreatment system of the present invention；
Process charts of the Fig. 2 for biochemical stage.
Specific embodiment
The present invention will be further described with specific embodiment below in conjunction with the accompanying drawings：
Embodiment 1
First, pretreatment system,
Low concentration wastewater collecting pit 1, high-concentration waste water collecting pit 2, ultrahigh concentration wastewater collection pond 3 and accident pool 4, accident
Pond 4 is connected with high-concentration waste water collecting pit 2 and ultrahigh concentration wastewater collection pond 3 respectively.Accident pool 4 also through grille well 31 with it is low
Concentration wastewater collection pond 1 is connected.
Plant area's terminal waste water is divided three classes by we, and one is that ultrahigh concentration waste water COD is more than 80,000 mg/L (COD：80000～40
Ten thousand mg/L)；Two is high-concentration waste water (2000mg/L≤COD≤80,000 mg/L)；Three is that low concentration wastewater COD is less than or equal to 2,000
Mg/L (the average 2000mg/L of COD).
, from production waste water, ultrahigh concentration waste water predominantly produces waste water and has height for ultrahigh concentration waste water and high-concentration waste water
COD contents, containing organic solvent, salinity (averagely about 13%) or poisonous, the features such as biochemical is poor.Into ultrahigh concentration waste water
Collecting pit 3.
Also it is production waste water in high-concentration waste water, mainly contains organic solvent (methanol, acetone, chloroform, dichloromethane
Alkane, tetrahydrofuran, isobutyl amine, nitromethane, DMF, acetonitrile etc.), medicine intermediate and 2%～8% or so salinity (chlorination
Sodium, sodium sulfate)；PH value 3～9.Into high-concentration waste water collecting pit 2.
Low concentration wastewater water quality situation：Including equipment and terrace flushing water, experimental analysiss detection waste water, sanitary wastewater etc..
Into low concentration wastewater collecting pit 1.
Waste water is produced after generation accident and collects accident pool 4 temporarily, then respectively enter after the measurement of COD corresponding
Ultrahigh concentration wastewater collection pond 3 and high-concentration waste water collecting pit 2 or low concentration wastewater collecting pit 1.
Ultrahigh concentration wastewater collection pond 3 is regulating reservoir again, is provided with aerator in its bottom, is exposed by aerator
Gas, makes not produce precipitation, even water quality and the water yield, biodegradability of increasing water quality.Then ultrahigh concentration waste water enters MVR vaporizers 5,
MVR vaporizers are prior art, be will not be described here.Evaporation water collecting pit 6, superelevation are entered from the waste water out of MVR vaporizers 5
Concentration waste water is after MVR evaporations, if evaporation water COD ＞ 30000mg/L or B/C ＜ 0.25, evaporation water enters high-concentration waste water
The Buffer Pool 7 of pretreatment system.If evaporation water COD≤30000mg/L or B/C >=0.25, waste water can be directly entered comprehensive adjustment
Pond 15, into biochemical treatment system.Evaporation water collecting pit 6 is connected with Buffer Pool 7 and comprehensive adjustment pond 15.Ultrahigh concentration waste water Jing
The content of COD can be substantially reduced after crossing MVR evaporations.
The front portion of high-concentration waste water collecting pit 2 is provided with oil removal area, and this is prior art, is not drawn into oil removal area in figure.It is highly concentrated
Bottom in degree wastewater collection pond 2 also is provided with aerator, and this is prior art, be will not be described here, and high-concentration waste water is collected
The outlet in pond 2 is connected with the first highly concentrated water precipitation pond 8, and the waste water in the first highly concentrated water precipitation pond 8 enters the Buffer Pool 7, high
Concentration waste water enters high-concentration waste water collecting pit 2 after oil removal area removes oil slick, through aeration agitation, adjusts the waste water water yield,
Then the first highly concentrated water precipitation pond 8 is pumped into by elevator pump, in the outlet pipe dosing coagulant and flocculant of elevator pump, PAM and
The addition of PAC, PAC is 0.8-1.5g/L waste water, and the addition of PAM is 10～50mg/L.Waste water and the coagulant elder generation for adding
Through coagulating, the first highly concentrated water precipitation pond 8 is entered back into, precipitation slag thing reduces concentration of suspension, subsequently into Buffer Pool 7,
Boosted pump pumps into multi-dimensional electro-catalytic reactor 9.Hydrochloric acid is added in the outlet pipe of the elevator pump, by pipe-line mixer so that
PH value control at acid (pH3-4), waste water in multi-dimensional electro-catalytic reactor 9, the Organic substance of difficult degradation occur electrochemical oxidation-
Reduction reaction, COD are degraded, and waste water enters Inner electrolysis groove 10, and in Inner electrolysis groove 10, the Organic substance in waste water is partly gone
Remove, COD is reduced, the biodegradability of waste water is improved.
To catalysis oxidation groove 11, catalytic oxidation belongs to high-level oxidation technology to the water outlet of Inner electrolysis groove, in certain pH value
Under (pH12, plus Calx tune), temperature (room temperature) condition and catalyst (iron salt) effect, the Organic substance of multiple types of degrading, so as to subtract
Light its inhibitory action to microorganism, is that the effective degradable organic pollutant of biochemical treatment system creates conditions.
11 water outlet of catalysis oxidation groove flows into pH adjustment pond 12, and Jing adds mixed in hydrochloric acid, pH value is controlled 8～8.5, then
PAC, PAM is added, the addition of PAC is 0.8-1.5g/L waste water, and the addition of the PAM is 10～50mg/L.Due to waste water
In containing generate calcium sulfate, in PAC aluminium ion absorption calcium sulfate, and then generate aluminium calcium sulfate precipitate.
PH adjustment 11 water outlets of pond flow automatically to the second highly concentrated water precipitation pond 13, and the second highly concentrated water precipitation pond 13 is perpendicular stream precipitation
Pond, supernatant water flow automatically to transfer pond 14, then amount into comprehensive adjustment pond 15.
Low concentration wastewater COD concentration is relatively low, containing float and petroleum hydrocarbons.
Grille well 31 is initially entered, Jing after grid debris retaining thing, into the namely regulating reservoir of low concentration wastewater collecting pit 1, is adopted
With aeration agitation, after adjusted water quality, the water yield, sedimentation tank 18 is pumped into using lifting.Waste water Jing precipitates sand grains and float, removal
After oil slick, into comprehensive adjustment pond 15.
The sludge in the first highly concentrated water precipitation pond 8 and the second highly concentrated water precipitation pond 13 pumps into materialized mud pond 16, then passes through
17 filter pressing of Chamber Type Diaphragm Filter Press obtains mud cake, and the filtrate (liquid of 17 filter pressing of the Chamber Type Diaphragm Filter Press is connected to high-concentration waste
Water collecting pit 2.
Table 1 is each step effect data of pretreatment.
Table 1
As can be seen from the table after pretreatment, COD is significantly reduced, the sulfate radical clearance of high-concentration waste water
5% can be reached so that biodegradability is improved.
The present invention applies multi-dimensional electro-catalytic+Inner electrolysis+catalytic oxidation, and the removal ability of its COD is relatively low, but can carry
The ratio of high BOD/COD, that is, improve the biodegradability of waste water, realizes the mesh of high concentration hard-degraded organic waste water pretreatment
's.For pre-treating difficultly-degradable and the organic wastewater effect containing poisonous and harmful substance preferably, the such as used water difficult to degradate such as heterocyclic.
2nd, the biochemical treatment stage
After pretreatment, all kinds of waste water introduce comprehensive adjustment pond 15 (also referred to as main regulation pond), due to some waste water salt contents compared with
Height, in all kinds of waste water combined processes in main regulation pond, salinity and some bio-toxicity materials are diluted, and are conducive to improving follow-up
The efficiency of biochemical treatment.For strengthening homogenization of the main regulation pond to water quality, the bottom in comprehensive adjustment pond 15 arranges aeration
Device preaeration blower fan, to main regulation pond waste water intermittent aerating.Main regulation pond can set the on-line checkings such as liquidometer, pH value, all kinds of
Waste water is neutralized naturally in main regulation pond, and when pH runaways (6～9), pH on-line computing models are reported to the police, by dosing pump certainly
Dynamic input hydrochloric acid (or alkali liquor) adjusts pH value.For phosphorus element necessary to ensure growth of microorganism, it is provided with tune drug slot and prepares phosphorus containing agent
It is added to comprehensive adjustment pond 15.
Main body biochemical treatment unit is followed successively by hydrolysis acidification pool 19, micro- oxygen pond 20, desulfurization sedimentation tank 21, UASB anaerobic reactions
Pond 22, anaerobic precipitation pond 23, anoxic pond 24, Aerobic Pond 25, second pond 26, ABFT ponds 27, final deposition pool 28 and clear water reserviors 29.
The waste water in comprehensive adjustment pond 15 enters hydrolysis acidification pool 19, and the hydrolysis acid of Organic substance mainly occurs in hydrolysis acidification pool
Change, simultaneously because the metabolism of hydrolysed ferment bacterium, makes larger molecular organicses be degraded to small organic molecule, improve water outlet
Biodegradability, while the COD of sewage obtains a certain degree of removal, under anaerobic, sulfate reducting bacteria (SRB) is in hydrolysis
Most sulfate radical is reduced into into H in acidifying2S。
The waste water of hydrolysis acidification pool 19 enters oxygen pond 20 in a subtle way, due to the H for generating2S major parts are dissolved in water, and enter oxygen in a subtle way
Simple substance S is oxidized into behind pond 10, adds after coagulant PAC the precipitate and separate in desulfurization sedimentation tank 21.
The water outlet of desulfurization sedimentation tank 21, is gone to UASB anaerobic reation pools 22 by the anaerobic treatment of high load capacity by elevator pump
Except most of Organic substance in waste water.UASB anaerobic reation pools 22 by pulse water distribution, waterpower interior circulation stirring come promote sewage with
Sludge is sufficiently mixed, and is provided with multiple thief holes and carrys out the indexs such as sample analysis sludge concentration, VFA, pH value (basicity) to control
The operation of UASB anaerobic reactions.Biogas enters water sealed tank after gas skirt collection, then discharges (can also be back to boiler).This is
Prior art, will not be described here.
22 water outlet of UASB anaerobic reation pools is to anaerobic precipitation pond 23.
In anaerobic precipitation pond 23, waste water Jing precipitations, clear water enter A/O systems.
A/O systems set anoxic pond 24, Aerobic Pond 25.24 water outlet of anoxic pond flows automatically to Aerobic Pond 25.It is in A/O units, good
Mixed liquor in oxygen pond 25 is partly refluxed to anoxic pond 24, and this circulation is referred to as interior circulation.NO in backflow mixed liquor3- N is anti-
Anti-nitration reaction is carried out by the use of the carbonaceous organic material in raw sewage in anoxic pond 24 as carbon source material in the presence of nitrifier.
24 water outlet of anoxic pond enters Aerobic Pond 25, occur in Aerobic Pond 25 oxidation of carbonaceous organic material, the ammonification of itrogenous organic substance and
The Nitrification of ammonia nitrogen.The mixed liquor of Aerobic Pond 25 flows automatically to second pond 26, second pond 26 produce Jing after mud-water separation it is dense
Sludge part is back to anoxic pond 24, and this circulation is referred to as outer circulation.
O pond of the present invention in A/O systems adds powdered activated carbon (being also PACT flow processs), synergism.I.e. aerobic
Add Powdered Activated Carbon in pond 25, the addition of Powdered Activated Carbon is 50-100g/L water, PACT similar to activated sludge performance
Flow process is also the powdered activated carbon biology micelle that suspension, collagenous and soluble solid are converted into settling.PACT and biography
System activated sludge has compared many advantages, is summarized as follows：
1), in PACT systems, MLSS will be significantly increased, and reduce the value of F/M, and (mud volume refers to also reduce SVI
Number), the synergism of activated carbon and activated sludge can make PACT with than independent activated carbon adsorption (whether powdery or granular)
Or the more preferable treatment effect of activated sludge process, synergism also makes process quicker, makes the timid energy of PACT system specific activity sludge
With larger sludge loading.
2), the high absorption capacity of activated carbon is buffered the impact that toxicant and load impact are brought to microorganism.Compared with
Traditional sludge method ecosystem, PACT can provide more stable environment to microorganism, while the polluter of more difficult decomposition
Can be kept and be processed with considerably long hydraulic detention time in systems.
3), the presence of powdered activated carbon is improved aerobic environment.This is that have quite strong to gaseous oxygen due to activated carbon
Captivation, and cause in PACT systems, oxygen utilization rate is improved.
4), PACT techniques, the refractory organic in the adsorbable waste water of dust active carbon, you can adsorpting characteristic pollution because
Son：Dichloromethane, therefore dichloromethane qualified discharge can be made using PACT techniques.
The backflow of 25 mixed liquor of 26 sludge of second pond and Aerobic Pond ensure that anoxic pond 24 has sufficient amount of denitrifying bacterium,
And take the nitrate nitrogen that Aerobic Pond 25 nitrifies generation to anoxic pond 24.Anaerobic precipitation pond water out enters anoxic pond and Aerobic Pond
The mixed liquor mixing of 25 backflows, provides the carbon source of abundance for 24 denitrification of anoxic pond.Anoxic pond 24 is also made while denitrogenation
Organic substance obtains the removal of respective degrees, and the pond can make the NO in the pond waste water3The complete denitrifications of-N, its water outlet are flowed automatically to
Downstream Aerobic Pond, the Organic substance in waste water are further degraded, and the ammonia nitrogen in waste water is changed into nitrate nitrogen, Aerobic Pond because of nitration reaction
25 can make waste water in the TN that can nitrify nitrify completely.Powdered Activated Carbon is added in Aerobic Pond 25, adds powder in Aerobic Pond
The amount of activated carbon is 50-100g/L.
A/O units set pH value, dissolved oxygen instrument and sludge concentration meter respectively, are controlled by dissolved oxygen, sludge concentration signal
Inside and outside capacity of returns and adjustment wind supply quantity.
Second pond 26 is vertical sedimentation tank, and after precipitation, supernatant is pooled to the overflow launder of pond periphery, then from outflow
Pond.Base sludge external reflux pump is transported to 24 import of anoxic pond, and excess sludge is discharged to UASB anaerobic reation pools or biochemical sludge
Pond 30.
26 water outlet of second pond enters ABFT ponds 27 (aerated biological fludized bed), and 27 water outlet of ABFT ponds enters final deposition pool 28, clear
Pond 29, Jing monitoring discharges.
Biochemical treatment flow process produces mud point to be had：(category physics sludge, belongs to biochemistry to the sedimentation tank 18 of low concentration wastewater pretreatment
Sludge), hydrolysis acidification pool 19, desulfurization sedimentation tank 21, UASB anaerobic reation pools 22, anaerobic precipitation pond 23, second pond 26, ABFT ponds
27th, the point such as final deposition pool 28.Mud point is produced above, and pump spoil disposal is respectively adopted to biochemical sludge pond 30.
In biochemical sludge pond 30, sludge forms upper clear supernate and base sludge, upper clear supernate Jing week by gravity compressed
Side overflow launder guides to high-concentration waste water collecting pit 2 or comprehensive adjustment pond 15, base sludge sludge delivery pump with pipeline after collecting
It is sent to 17 mud inlet end of Chamber Type Diaphragm Filter Press.The dry filter cake (including the grid slag that mechanical grille is produced) produced after filter pressing squeezing is moved
The saving of dewatered sludge pond is delivered to, the outbound disposal of as ready, Chamber Type Diaphragm Filter Press filtrate flow automatically to high-concentration waste water collecting pit 2 or comprehensive
Close regulating reservoir 15.
Table 2 is each stage effectiveness tables of data of biochemical treatment
Table 2
Explanation：1), maximum concentration design is pressed in water inlet；2), the tentative COD30000mg/L of ultrahigh concentration evaporation water, by directly entering
Enter comprehensive adjustment pond to adjust (if COD exceedes setting value 30000mg/L, be introduced into high-concentration waste water materialized pretreatment system).
Continual through continuous two months that floss hole waste water is detected, water outlet can be discharged with stably reaching standard.This is
The process to pharmacy waste water of uniting is effective system.
Table 3 is receiving sewage standard.
Table 3
The present invention is not limited to above-described embodiment, it will be appreciated that one of ordinary skill in the art is without the need for creative work
Just many modifications and variations can be made with design of the invention.Therefore, all technical staff in the art are according to the present invention
Design on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all
Should be in the protection domain being defined in the patent claims.
Claims (9)
1. a kind of chemical pharmacy wastewater comprehensive treatment system, including pretreatment system and biochemical treatment system, it is characterised in that：Institute
State pretreatment system:Including low concentration wastewater collecting pit, high-concentration waste water collecting pit and ultrahigh concentration wastewater collection pond；
The ultrahigh concentration wastewater collection pond outlet is connected with MVR vaporizers, and evaporation water enters evaporation water collecting pit, the evaporation
Water collecting pit is connected with Buffer Pool and comprehensive adjustment pond；
The front portion of the high-concentration waste water collecting pit is provided with oil removal area, the outlet of high-concentration waste water collecting pit and the first high concentrated water
Sedimentation tank is connected, and the waste water in the first highly concentrated water precipitation pond enters the Buffer Pool；
The Buffer Pool is connected with multi-dimensional electro-catalytic reactor, outlet and the Inner electrolysis groove phase of the multi-dimensional electro-catalytic reactor
Even, the outlet of Inner electrolysis groove is connected with catalysis oxidation groove, and the outlet of the catalysis oxidation groove is connected with pH adjustment pond, described
The outlet in pH adjustment pond is connected with the second highly concentrated water precipitation pond, the outlet in the second highly concentrated water precipitation pond and transfer pond phase
Even, the transfer pond is connected with comprehensive adjustment pond；
The low concentration wastewater collecting pit is connected with sedimentation tank, and the sedimentation tank is connected with comprehensive adjustment pond；
Hydrolysis acidification pool that the biochemical treatment system includes being sequentially connected, micro- oxygen pond, desulfurization sedimentation tank, UASB anaerobic reactions
Pond, anaerobic precipitation pond, anoxic pond, Aerobic Pond, second pond, ABFT ponds, final deposition pool and clear water reserviors, wherein hydrolysis acidification pool and synthesis
Regulating reservoir is connected, and the partial sludge in mixed liquor and second pond in Aerobic Pond is back to anoxic pond, throws in the Aerobic Pond
Plus Powdered Activated Carbon, dosage is 50-100g/L waste water.
2. chemical pharmacy wastewater comprehensive treatment system according to claim 1, it is characterised in that：Also include materialized mud pond,
The sludge in the first highly concentrated water precipitation pond and the second highly concentrated water precipitation pond enters materialized mud pond, then through van-type barrier film pressure
Filter filter pressing, the filtrate (liquid of the Chamber Type Diaphragm Filter Press filter pressing are connected to high-concentration waste water collecting pit.
3. chemical pharmacy wastewater comprehensive treatment system according to claim 1, it is characterised in that：The ultrahigh concentration waste water is received
Aerator is equipped with Ji Chi and high-concentration waste water collecting pit.
4. chemical pharmacy wastewater comprehensive treatment system according to claim 1, it is characterised in that：Also include accident pool, it is described
Accident pool is connected with high-concentration waste water collecting pit, ultrahigh concentration wastewater collection pond respectively, meanwhile, the accident pool is through grille well
It is connected with low concentration wastewater collecting pit.
5. the chemical pharmacy wastewater comprehensive treatment system according to any one of claim 1-4, it is characterised in that：The low concentration
Grille well is provided with before wastewater collection pond.
6. chemical pharmacy wastewater comprehensive treatment system according to claim 1, its spy are characterised by：Also include biochemical sludge
Pond, the sludge of the sedimentation tank of the low concentration wastewater pretreatment enter the biochemical sludge pond；It is in biochemical treatment system, described
Hydrolysis acidification pool, desulfurization sedimentation tank, UASB anaerobic reation pools, anaerobic precipitation pond, second pond, ABFT ponds, the sludge of final deposition pool enter
Enter biochemical sludge pond.
7. chemical pharmacy wastewater comprehensive treatment system according to claim 1, it is characterised in that：High-concentration waste water, superelevation are dense
Degree waste water and low concentration wastewater respectively enter high-concentration waste water collecting pit, ultrahigh concentration wastewater collection pond and low concentration wastewater and collect
Pond；The superb high-concentration waste water is more than the waste water of 80,000 mg/L for COD, and high-concentration waste water refers to COD for the useless of ten thousand mg/L of 2000-8
Water, low concentration wastewater refer to waste water of the COD less than 2000mg/L.
8. chemical pharmacy wastewater comprehensive treatment system according to claim 7, it is characterised in that：The ultrahigh concentration waste water Jing
After crossing MVR evaporator evaporations, the COD ＞ 30000mg/L or B/C ＜ 0.25 of water is such as evaporated, and evaporation water enters Buffer Pool；
Comprehensive adjustment pond is directly entered if evaporating water COD≤30000mg/L or B/C >=0.25.
9. chemical pharmacy wastewater comprehensive treatment system according to claim 1, it is characterised in that：In catalysis oxidation pond, plus
Enter Calx to adjust pH is 12, and temperature is room temperature, and catalyst is iron salt；The pH of the solution of multi-dimensional electro-catalytic reactor is 3-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510469602.6A CN105060627B (en) | 2015-08-04 | 2015-08-04 | Chemical pharmacy wastewater comprehensive treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510469602.6A CN105060627B (en) | 2015-08-04 | 2015-08-04 | Chemical pharmacy wastewater comprehensive treatment system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105060627A CN105060627A (en) | 2015-11-18 |
| CN105060627B true CN105060627B (en) | 2017-03-22 |
Family
ID=54490217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510469602.6A Active CN105060627B (en) | 2015-08-04 | 2015-08-04 | Chemical pharmacy wastewater comprehensive treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105060627B (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105366866A (en) * | 2015-12-11 | 2016-03-02 | 浙江华立涂装设备有限公司 | Wastewater zero discharge system |
| CN108821484A (en) * | 2018-08-23 | 2018-11-16 | 南京科莱恩环境工程有限公司 | A kind of pretreatment combination size device and method of semi-coke wastewater |
| CN109354321A (en) * | 2018-11-29 | 2019-02-19 | 天津市联合环保工程设计有限公司 | A kind of recycling processing system and its processing method of pharmacy waste water |
| CN110526517A (en) * | 2019-09-20 | 2019-12-03 | 重庆杰润科技有限公司 | A kind of medical intermediate production waste water treatment process |
| CN111704321A (en) * | 2020-07-01 | 2020-09-25 | 中国计量大学 | Pesticide wastewater treatment process |
| CN112321069A (en) * | 2020-10-20 | 2021-02-05 | 南京万瑞环境科技有限公司 | Hospital sewage comprehensive treatment system |
| CN112551774A (en) * | 2020-12-29 | 2021-03-26 | 华夏碧水环保科技有限公司 | Pretreatment process method of antibiotic wastewater |
| CN112794518B (en) * | 2020-12-30 | 2021-09-28 | 华夏碧水环保科技有限公司北京分公司 | Pretreatment system and treatment method for chemical synthesis pharmaceutical high-concentration wastewater |
| CN112390479B (en) * | 2021-01-20 | 2021-05-07 | 华夏碧水环保科技有限公司北京分公司 | Chemical synthesis pharmaceutical wastewater treatment system and treatment method |
| CN115490386B (en) * | 2022-11-17 | 2023-05-09 | 利华益维远化学股份有限公司 | Method for reducing biochemical excess sludge by utilizing high-salt wastewater treatment system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6555002B2 (en) * | 2000-10-06 | 2003-04-29 | Premier Wastwater International, Llc | Apparatus and method for wastewater treatment with enhanced solids reduction (ESR) |
| CN101746912B (en) * | 2008-12-16 | 2012-11-21 | 中山市紫方环保技术有限公司 | Method for treating high-concentration organic industrial waste water and equipment thereof |
| JP5189688B1 (en) * | 2012-05-07 | 2013-04-24 | 眞 小島 | Wastewater treatment system and treatment method |
| CN103011525B (en) * | 2012-12-31 | 2014-04-02 | 江苏金润环境科技有限公司 | Anaerobic biochemical sewage treatment system and method |
| CN204897650U (en) * | 2015-08-04 | 2015-12-23 | 重庆杰润科技有限公司 | Chemistry pharmacy effluent disposal system |
-
2015
- 2015-08-04 CN CN201510469602.6A patent/CN105060627B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105060627A (en) | 2015-11-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105060627B (en) | Chemical pharmacy wastewater comprehensive treatment system | |
| CN105060598B (en) | Chemical pharmacy waste water pretreatment system | |
| CN204897650U (en) | Chemistry pharmacy effluent disposal system | |
| CN105330018B (en) | It is a kind of that the quick urban sewage treating device and method for realizing short distance nitration is suppressed based on free nitrous acid | |
| CN106565017B (en) | A kind of bicirculating denitrogenation dephosphorizing waste water treatment system and its method | |
| CN102807302B (en) | Method for treating livestock and poultry breeding waste water | |
| CN103880244B (en) | Comprehensive treatment method for liquid dung of livestock and poultry and domestic wastewater in country | |
| CN105923774A (en) | Device and method for realizing sludge digestive fluid advanced nitrogen removal by three-section type short-cut nitrification-anaerobic ammonia oxidation-short-cut denitrification process | |
| CN112811719B (en) | Autotrophic denitrification treatment system and method for urban sewage | |
| CN106116031A (en) | A kind of efficient treatment process of slaughtering wastewater | |
| CN103936229A (en) | Municipal sewage improved A2/O enhanced denitrification and dephosphorization treatment device and process | |
| CN203820608U (en) | Village and town sewage treatment and deep purification integrated equipment | |
| CN103214141A (en) | Sewage advanced treatment and recycling method capable of substantially raising economy | |
| CN101486521A (en) | Method for treating starch wastewater by administration air-float-UASB-SBR | |
| CN106830565A (en) | A kind of waste water advanced removal of carbon and nitrogen processing unit and its technique | |
| CN105967435A (en) | Double-circulation nitrogen and phosphorus removal wastewater treatment system and process | |
| CN110104908A (en) | A kind of hair product waste water efficient denitrification system and efficient denitrification technique | |
| CN103979750A (en) | Reactor for sewage treatment and phosphorus recovery and method for recovering phosphorus by using same | |
| CN111646649A (en) | Excrement wastewater treatment method for modular railway train excrement collector | |
| CN105923771A (en) | Self-circulation biological denitrification reactor | |
| CN102491596A (en) | Method and device for regulating C/N (carbon/nitrogen) ratio of urban sewage | |
| CN105481092A (en) | Sewage treatment device achieving automatic control function by monitoring N2O and control method | |
| CN111646648A (en) | Remote treatment method for excrement wastewater of modular railway train excrement collector | |
| CN107601781A (en) | A kind of sewage disposal system | |
| CN104891753A (en) | Wastewater treatment process and wastewater treatment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |