CN108101208A - The anaerobic in low temperature processing unit and its treatment process of a kind of high concentrated organic wastewater - Google Patents
The anaerobic in low temperature processing unit and its treatment process of a kind of high concentrated organic wastewater Download PDFInfo
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- CN108101208A CN108101208A CN201711324175.8A CN201711324175A CN108101208A CN 108101208 A CN108101208 A CN 108101208A CN 201711324175 A CN201711324175 A CN 201711324175A CN 108101208 A CN108101208 A CN 108101208A
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- anaerobic
- low temperature
- water
- temperature reactor
- organic wastewater
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
Abstract
The present invention relates to a kind of devices and treatment process of anaerobic in low temperature reactor for treatment high concentrated organic wastewater, it is suitble to the industrial wastewater of processing to include pharmacy waste water, the high concentrated organic wastewaters such as dyeing waste water or coal chemical industrial waste water, the inlet COD concentration of processing is suitble to be less than 50000mg/L, TDS is less than 3000mg/L, 4 10 DEG C of waste water temperature.The present invention is maintained for traditional anaerobic system needs and run in stable mesophilic range, and in low temperature environment inefficiency realistic situation, high concentrated organic wastewater is handled by the technique for combining preposition pretreatment regulating reservoir and anaerobic in low temperature reactor, being reached using the biologic packing material of anaerobic reactor inside holding excellent heat insulating performance and the psychrophile of inoculation reduces waste water heating temperature, improves the purpose of work efficiency.The technological operation is easy, and processing is efficient, adaptable, and design considerations is provided for the high concentrated organic wastewater processing under low temperature environment.
Description
Technical field
The invention belongs to the anaerobic in low temperature processing units and its behaviour of field of waste water treatment more particularly to high concentrated organic wastewater
Make method.
Background technology
With chemical industry and its high speed development of related industry, high concentrated organic wastewater is increasing, and such as pharmacy is changed
Most of waste water of the industries such as work, weaving, food discharge belongs to high concentrated organic wastewater, and conventional materialization, biochemical treatment are difficult
So that its qualified discharge, processing cost height is existed simultaneously, the problems such as complex process, operation and maintenance are not easy.
Anaerobic technology due to the features such as easy to operate, of low cost, quickly growing in recent years.Wherein UASB（Rise
Formula sludge fluid bed）、EGSB（External circular anaerobic processes）、IC（Internal-circulation anaerobic reactor）Anaerobic reactors is waited to use extensively
In the various high concentrated organic wastewaters of processing.The process of these reactor for treatment waste water includes acidification hydrolization, hydrogenesis and acetogenesis, production first
Alkane three phases.In fields such as beverage/foods, anaerobism, which tends to realize, generates substantial amounts of methane gas, so as to fulfill recycling
Purpose.In fields such as fine chemistry industry, synthesis class pharmacy, because there is the substance largely to microorganism with inhibition in system
Organic matter includes persistence toxicant, inorganic matter includes sulfate, nitrate etc., so as to inhibiting system in acidification hydrolization and
Production sour two stages, methane production are relatively fewer.During this, wastewater biodegradability is improved, wastewater toxicity is reduced, cuts down and give up
Organic substance in water content is the main purpose of Anaerobic Treatment.
However, these traditional anaerobic reactors are primarily adapted for use in the higher organic wastewater of biodegradability, it is required to maintain
The running temperature of 32 ~ 37 degree of mesophilic range, 6.5 ~ 7.5 pH neutral, the substantial amounts of complexity behaviour in actual moving process
It is essential to make.Therefore in the high concentration that methane phase is non-principal pretreatment purpose, highly toxic treatment of Organic Wastewater, improve useless
The temperature tolerance of water reduces and the cost of waste water medium temperature is maintained to become major consideration.
The content of the invention
To solve the problems, such as that the anaerobism removal rate of current high concentrated organic wastewater is low, anaerobic reactor needs to maintain medium temperature,
The present invention proposes a kind of the anaerobic in low temperature processing unit and its operating method of high concentrated organic wastewater.
A kind of anaerobic in low temperature processing unit of high concentrated organic wastewater proposed by the present invention, is detested by preposition regulating reservoir, low temperature
Oxygen reactor and aftertreatment systems composition, wherein：Preposition regulating reservoir bottom is equipped with aeration head, bottom in anaerobic in low temperature reactor
For water distributing area, several water distributors are arranged vertically within the water distributing area of anaerobic in low temperature reactor, realize that the water inlet of anaerobic in low temperature reactor is equal
Even water distribution, middle part is uniformly filled with biologic packing material in anaerobic in low temperature reactor, in the inlet ductwork of anaerobic in low temperature reactor bottom
Intake pump is provided with, the intake pump connects water distributor by pipeline, set on the return line of anaerobic in low temperature reactor top one side
Reflux pump is equipped with, the reflux pump connects preposition regulating reservoir by pipeline；Anaerobic in low temperature reactor internal upper part is equipped with gas collecting tube, collection
Upper tracheal is provided with three phase separator, and anaerobic in low temperature reactor head is also connected with a gas bottle；Anaerobic in low temperature reactor top
Opposite side connects aftertreatment systems by pipeline.
The operating method of the anaerobic in low temperature processing unit of high concentrated organic wastewater proposed by the present invention, is as follows：
（1）High concentrated organic wastewater is delivered into preposition regulating reservoir, adds in nutritional agents, while adds in acid or alkali, is adjusted high
Concentration organic wastewater pH value is 6 ~ 7, improves microbial activity in follow-up anaerobic in low temperature reactor, and preposition regulating reservoir bottom is equipped with aeration
Head is acted on using aeration, can remove part volatile organic matter in high concentrated organic wastewater；
（2）Start intake pump, by the mixed liquor that recirculation water in preposition regulating reservoir water outlet and anaerobic in low temperature reactor is formed convey into
The water distributing area of anaerobic in low temperature reactor bottom；
（3）Mixed liquor is entered by water distributor in anaerobic in low temperature reactor from the water distributing area of anaerobic in low temperature reactor bottom, low temperature
Biologic packing material in anaerobic reactor makes water, activated sludge and biogas come into full contact with mixing, then utilizes anaerobic in low temperature reactor
The three phase separator on top is separated, and gas collecting tube of the biogas isolated through anaerobic in low temperature reactor head is conveyed into gas collection
Bottle；
（4）External circulation water pump by the mixing water of at the top of biologic packing material and three phase separator lower part by reflux pump and section chief with it is preposition
After regulating reservoir water outlet converges, anaerobic in low temperature reactor bottom water distributing area is reentered by intake pump；
（5）Step（3）In separated by three phase separator after water collected by collector pipe after into aftertreatment systems；
（6）Step（3）In separated by three phase separator after biogas conveyed by the gas outlet of anaerobic in low temperature reactor head
Into gas bottle.
In the present invention, step（1）Described in the COD concentration of high concentrated organic wastewater be less than 50000mg/L, TDS is less than
3000mg/L, 4-10 DEG C of waste water temperature.
In the present invention, step（1）The acid is sulfuric acid, and alkali is sodium hydroxide.
In the present invention, step（1）The nutritional agents is ammonia nitrogen and phosphate, and the mass ratio for controlling C, N and P is 200:5:
1, ammonia nitrogen uses ammonium chloride, and phosphate uses potassium dihydrogen phosphate.
In the present invention, step（3）The biologic packing material is PP type biologic packing material, is specially polypropylene, hydration silicon
Sour magnesium, tetrapentaerythritol ester, hindered amine as light stabilizer 944, methyl hexadecanoate and methyl stearate keep the temperature excellent heat insulating performance.
In the present invention, step（3）The microorganism on the biologic packing material surface layer is through taming good psychrophile, energy
The temperature of tolerance reaches 4-10 DEG C.
In the present invention, the anaerobic in low temperature reactor reflux ratio is controlled between 50 ~ 300%.
Further：A kind of structure of the anaerobic in low temperature processing unit using high concentrated organic wastewater includes：
Preposition regulating reservoir is connected with waste water inlet tube, the side of the preposition regulating reservoir on the side wall of the preposition regulating reservoir
Wall is equipped with injection port, and the bottom of the preposition regulating reservoir is equipped with aeration head, the side wall of the lower end of the preposition regulating reservoir
Water outlet is equipped with, the top of the preposition regulating reservoir is equipped with gas outlet.
Anaerobic in low temperature reactor, the bottom of the anaerobic in low temperature reactor are equipped with water distributor, and the water distributor passes through
Water inlet pipe is communicated with the outlet pipe of preposition regulating reservoir, and intake pump, anaerobic in low temperature reaction are equipped on the water inlet pipe
Device is water distribution area successively from the bottom up, reaction zone, three phase separator, is provided with packing layer in the reaction zone, described fills out
PP type biologic packing material is filled in the bed of material, is connected with outlet pipe on the side wall of the anaerobic in low temperature reactor upper end, institute
The outlet pipe stated is communicated with the water inlet pipe of aftertreatment systems, and the top of the anaerobic in low temperature reactor is equipped with gas outlet,
Return duct, one end of the return duct are connected with the outlet pipe of preposition regulating reservoir, and the other end of the return duct connects
It is connected on anaerobic in low temperature reactor filler area upper end, on the side wall of three phase separator lower end, reflux is installed on the return duct
Pump,
Gas bottle, the gas bottle are connected by pipeline with the gas outlet of anaerobic in low temperature reactor head,
Aftertreatment systems, the aftertreatment systems are connected by water inlet pipe with the outlet pipe of anaerobic in low temperature reactor.
Using above-mentioned design the device have the advantages that as follows：
（1）Whole system outer circulation design system is stablized, anti impulsion load.
（2）For the filler used for PP type biologic packing material, biofilm is fast, and biofilm development update is good, efficient, heat preservation
Excellent heat insulating performance remains to form stable biomembrane under the low temperature environment below 5 DEG C.
（3）The microorganism added in reactor is psychrophile, remains to maintain its biology in low temperature environment at 5 DEG C
Activity.
（4）Package unit is simple in structure, and maintenance is few.
（5）The design of anaerobic in low temperature reactor uniqueness and operation control, organic loading is high, has for high concentrated organic wastewater
There are stronger adaptability and treatment effect.
Description of the drawings
Fig. 1 is a kind of high concentrated organic wastewater anaerobic in low temperature processing device structure diagram of the present invention.
Figure label：1 is preposition regulating reservoir；2 be aeration head；3 be intake pump；4 be reflux pump；5 react for anaerobic in low temperature
Device；6 be water distributor；7 be biologic packing material；8 be gas collecting tube；9 be three phase separator；10 be aftertreatment systems；11 be gas bottle.
Fig. 2 is biologic packing material floor map.
Specific embodiment
It is further illustrated the present invention below by embodiment combination attached drawing：
Embodiment 1：The anaerobic in low temperature processing unit of a kind of high concentrated organic wastewater of the present invention, including sequentially connected preposition tune
Pond 1, anaerobic in low temperature reactor 5 and aftertreatment systems 10 are saved, preposition regulating reservoir bottom is equipped with aeration head 2, anaerobic in low temperature reaction
Device 5 realizes reactor water inlet water distribution uniformity, 5 inner homogeneous of anaerobic in low temperature reactor perpendicular to several water distributors 6 that bottom is set
Filled with PP type biologic packing material 7, intake pump 3 is provided in the inlet ductwork of anaerobic in low temperature reactor 5, is set on return line
It is equipped with reflux pump 4；5 top of anaerobic in low temperature reactor is also connected with a gas bottle 11.
Waste water inlet tube is connected on the side wall of the preposition regulating reservoir 1, is set on the side wall of the preposition regulating reservoir 1
There is injection port, the bottom of the preposition regulating reservoir 1 is equipped with aeration head, is set on the side wall of the lower end of the preposition regulating reservoir 1
There is water outlet, the top of the preposition regulating reservoir 1 is equipped with gas outlet；
The bottom of the anaerobic in low temperature reactor 5 is equipped with water distributor 6, and the water distributor 6 passes through water inlet pipe and preposition adjusting
The outlet pipe in pond 1 communicates, and is equipped with intake pump 3 on the water inlet pipe, and the anaerobic in low temperature reactor 1 is from the bottom up successively
It is water distribution area, reaction zone, three phase separator 9 is provided with biologic packing material 7 in the reaction zone, and the biologic packing material 7 uses
PP type biologic packing material, is connected with outlet pipe on the side wall of 5 upper end of anaerobic in low temperature reactor, the outlet pipe with
The water inlet pipe of aftertreatment systems 10 communicates, and the top of the anaerobic in low temperature reactor 5 is equipped with gas outlet；
One end of return duct is connected with the outlet pipe of preposition regulating reservoir 1, and the other end of the return duct is connected to anaerobic in low temperature
5 packing area upper end of reactor on the side wall of 9 lower end of three phase separator, is equipped with reflux pump on return duct；
The gas bottle 11 is connected by pipeline with the gas outlet at 5 top of anaerobic in low temperature reactor；
The aftertreatment systems 11 are connected by inlet channel with the outlet pipe of anaerobic in low temperature reactor 5.
The biologic packing material comprises the following ingredients：Polypropylene 83%, tetrapentaerythritol ester 0.3%, hindered amine light are steady
Determine agent 0.2%, methyl hexadecanoate 0.2%, methyl stearate 0.2%, pigment, remaining is hydrated magnesium silicate, and total weight meets
100%；The blended modification of polypropylene, the blending and modifying based on polypropylene can reach multi-effect.Blending and modifying uses
Additive have EP rubbers, EPDM, POE, EVA, SBS, low-temperature impact resistance can be improved, LDPE, EP rubbers, POE can be carried
Its high transparency, polyamide, polyurethane, polyacrylamide, polyacrylate, polyester, polyvinylidene chloride can improve its coloring
Property, property polyvinyl alcohol can improve antistatic property, and polyamide, polyvinylidene chloride can improve air-tightness, and it is exhausted to further enhance heat preservation
Thermal effect.
The waste water that the present invention is handled is the high concentrated organic wastewaters such as pharmacy, printing and dyeing, coal chemical industry；The waste water COD of the processing
Concentration is less than 50000mg/L, and TDS is less than 3000mg/L, 4-10 DEG C of waste water temperature.
Embodiment 2
Using the waste water of the device processing Hangzhou pharmaceutical Co. Ltd described in embodiment 1, waste water water is 250 ton per days, is used
Anaerobic in low temperature hydrolysis reactor and its treatment process, influent concentration be 30000 ~ 50000 mg/L, waste water yield for 150 tons/
Day, by anaerobic in low temperature processing unit, the COD removal rates of water outlet are up to 85%, BOD/COD and are promoted to 0.34 by 0.15.
Embodiment 3
Certain textile printing and dyeing enterprises is handled using the device described in embodiment 1 and generates a large amount of dyeing waste waters, waste water water for 210 tons/
Day, be 20000 ~ 40000 mg/L in influent concentration using anaerobic in low temperature hydrolysis reactor and its treatment process, colourity for 400 ~
At 600 times, anaerobism load uses 4kgCOD/ (m3D), at 4 ~ 25 degrees Celsius, water outlet COD removal rates are annual 365 days temperature
40%, for chroma removal rate more than 85%, BOD/COD is promoted to more than 0.4 by 0.2.
Embodiment 4
The waste water of certain chemical inc is handled using the device described in embodiment 1, generation wastewater flow rate is 160 ton per days, into
Water COD concentration be 20000 ~ 50000 mg/L, be up to 80% by anaerobic in low temperature hydrolysis device water outlet COD removal rates, extremely into
Water concentration is 50000 mg/L in COD concentration, and water outlet COD is less than 4000mg/L, and removal rate is higher than 60%, embodies high processing
Efficiency.Single unit system whole year does not heat, and when temperature is below 5 degrees Celsius, removal rate is still higher than 60%.
Embodiment 5
Jiangsu pharmaceutical manufacturing enterprise wastewater is handled using the device described in embodiment 1, the waste water quality is about 6, COD for pH
About 40000mg/L, SO4 2-About 15000mg/L belongs to high-concentration sulfuric acid salt organic waste water, is hydrolyzed by using anaerobic in low temperature anti-
Device and its treatment process are answered, COD removal rates are 85%, SO4 2-Removal rate is 70%, while realizing significantly reduction COD, is mitigated
Aftertreatment systems loads.
Embodiment 6
Certain Electric Applicance Co., Ltd synthesis emulsion and remover waste water are handled using the device described in embodiment 1, detested using low temperature
Oxygen hydrolysis reaction device and its treatment process, influent concentration be 15000mg/L when, inflow temperature 4-15 degrees Celsius change when,
Anaerobic unit removal rate has 0.16 to be promoted to 0.35 higher than 80%, BOD/COD.
Schematically the invention and embodiments thereof are described above, this describes no restricted, attached drawing
Shown in be also the invention one of embodiment, actual structure is not limited thereto.So if this field
Those of ordinary skill enlightened by it, in the case where not departing from this creation objective, not inventively design and the technology
The similar frame mode of scheme and embodiment should all belong to the protection domain of this patent.
Claims (8)
1. the anaerobic in low temperature processing unit of a kind of high concentrated organic wastewater, it is characterised in that anti-by preposition regulating reservoir, anaerobic in low temperature
Device and aftertreatment systems is answered to form, wherein：Preposition regulating reservoir bottom is equipped with aeration head, in anaerobic in low temperature reactor bottom be with
Pool, several water distributors are arranged vertically within the water distributing area of anaerobic in low temperature reactor, realize the uniform cloth of anaerobic in low temperature reactor water inlet
Water, the interior middle part of anaerobic in low temperature reactor are uniformly filled with biologic packing material, are set in the inlet ductwork of anaerobic in low temperature reactor bottom
There is intake pump, the intake pump connects water distributor by pipeline, is provided on the return line of anaerobic in low temperature reactor top one side
Reflux pump, the reflux pump connect preposition regulating reservoir by pipeline；Anaerobic in low temperature reactor internal upper part is equipped with gas collecting tube, gas collecting tube
Top is provided with three phase separator, and anaerobic in low temperature reactor head is also connected with a gas bottle；Anaerobic in low temperature reactor top is another
Side connects aftertreatment systems by pipeline.
2. the operating method of the anaerobic in low temperature processing unit of high concentrated organic wastewater according to claim 1, feature exist
In being as follows：
（1）High concentrated organic wastewater is delivered into preposition regulating reservoir, adds in nutritional agents, while adds in acid or alkali, is adjusted high
Concentration organic wastewater pH value is 6 ~ 7, improves microbial activity in follow-up anaerobic in low temperature reactor, and preposition regulating reservoir bottom is equipped with aeration
Head is acted on using aeration, can remove part volatile organic matter in high concentrated organic wastewater；
（2）Start intake pump, by the mixed liquor that recirculation water in preposition regulating reservoir water outlet and anaerobic in low temperature reactor is formed convey into
The water distributing area of anaerobic in low temperature reactor bottom；
（3）Mixed liquor is entered by water distributor in anaerobic in low temperature reactor from the water distributing area of anaerobic in low temperature reactor bottom, low temperature
Biologic packing material in anaerobic reactor makes water, activated sludge and biogas come into full contact with mixing, then utilizes anaerobic in low temperature reactor
The three phase separator on top is separated, and gas collecting tube of the biogas isolated through anaerobic in low temperature reactor head is conveyed into gas collection
Bottle；
（4）External circulation water pump by the mixing water of at the top of biologic packing material and three phase separator lower part by reflux pump and section chief with it is preposition
After regulating reservoir water outlet converges, anaerobic in low temperature reactor bottom water distributing area is reentered by intake pump；
（5）Step（3）In separated by three phase separator after water collected by collector pipe after into aftertreatment systems；
（6）Step（3）In separated by three phase separator after biogas conveyed by the gas outlet of anaerobic in low temperature reactor head
Into gas bottle.
3. operating method according to claim 2, it is characterised in that step（1）Described in high concentrated organic wastewater COD
Concentration is less than 50000mg/L, and TDS is less than 3000mg/L, 4-10 DEG C of waste water temperature.
4. operating method according to claim 2, it is characterised in that step（1）The acid is sulfuric acid, and alkali is hydroxide
Sodium.
5. operating method according to claim 2, it is characterised in that step（1）The nutritional agents is ammonia nitrogen and phosphoric acid
Salt, the mass ratio for controlling C, N and P are 200:5:1, ammonia nitrogen uses ammonium chloride, and phosphate uses potassium dihydrogen phosphate.
6. operating method according to claim 2, it is characterised in that step（3）The biologic packing material is given birth to for PP type
Object filler, is specially polypropylene, hydrated magnesium silicate, tetrapentaerythritol ester, hindered amine as light stabilizer 944, methyl hexadecanoate and hard
Resin acid methyl esters keeps the temperature excellent heat insulating performance.
7. operating method according to claim 2, it is characterised in that step（3）The microorganism on the biologic packing material surface layer
It is through taming good psychrophile, the temperature being resistant to reaches 4-10 DEG C.
8. operating method according to claim 2, it is characterised in that the anaerobic in low temperature reactor reflux ratio control exists
Between 50 ~ 300%.
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| CN110734192A (en) * | 2019-09-19 | 2020-01-31 | 杭州乐升环保工程有限公司 | high-alkalinity high-concentration printing and dyeing wastewater anaerobic pretreatment system and process |
| CN112239311A (en) * | 2020-10-28 | 2021-01-19 | 桂林电子科技大学 | Micro-aeration acidification control wastewater treatment device and method |
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Application publication date: 20180601 |