CN107399877A - A kind of integrated treatment technology of high concentration multicomponent organic wastewater - Google Patents
A kind of integrated treatment technology of high concentration multicomponent organic wastewater Download PDFInfo
- Publication number
- CN107399877A CN107399877A CN201710624283.0A CN201710624283A CN107399877A CN 107399877 A CN107399877 A CN 107399877A CN 201710624283 A CN201710624283 A CN 201710624283A CN 107399877 A CN107399877 A CN 107399877A
- Authority
- CN
- China
- Prior art keywords
- water
- organic wastewater
- organic
- uasb
- waste
- 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.)
- Pending
Links
- 239000002351 wastewater Substances 0.000 title claims abstract description 81
- 238000005516 engineering process Methods 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 72
- 238000009280 upflow anaerobic sludge blanket technology Methods 0.000 claims abstract description 39
- 229920005989 resin Polymers 0.000 claims abstract description 36
- 239000011347 resin Substances 0.000 claims abstract description 36
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 30
- 239000001301 oxygen Substances 0.000 claims abstract description 30
- 239000010786 composite waste Substances 0.000 claims abstract description 26
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 22
- 230000003647 oxidation Effects 0.000 claims abstract description 16
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 16
- 238000005273 aeration Methods 0.000 claims abstract description 15
- 230000009467 reduction Effects 0.000 claims abstract description 15
- 239000010802 sludge Substances 0.000 claims abstract description 14
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims abstract description 12
- 230000000694 effects Effects 0.000 claims abstract description 12
- 238000001556 precipitation Methods 0.000 claims abstract description 12
- 238000012545 processing Methods 0.000 claims abstract description 12
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000005416 organic matter Substances 0.000 claims abstract description 9
- 238000001179 sorption measurement Methods 0.000 claims abstract description 8
- 239000002957 persistent organic pollutant Substances 0.000 claims abstract description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 16
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 14
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 claims description 12
- 238000004062 sedimentation Methods 0.000 claims description 11
- 238000010992 reflux Methods 0.000 claims description 10
- 238000010521 absorption reaction Methods 0.000 claims description 9
- 230000001112 coagulating effect Effects 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 8
- 238000011068 loading method Methods 0.000 claims description 8
- 238000002156 mixing Methods 0.000 claims description 8
- 238000004659 sterilization and disinfection Methods 0.000 claims description 8
- 238000012549 training Methods 0.000 claims description 8
- 239000004155 Chlorine dioxide Substances 0.000 claims description 6
- 235000019398 chlorine dioxide Nutrition 0.000 claims description 6
- 238000005345 coagulation Methods 0.000 claims description 6
- 230000015271 coagulation Effects 0.000 claims description 6
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 241000193830 Bacillus <bacterium> Species 0.000 claims description 4
- 239000005864 Sulphur Substances 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 238000004132 cross linking Methods 0.000 claims description 4
- 238000005202 decontamination Methods 0.000 claims description 4
- 230000003588 decontaminative effect Effects 0.000 claims description 4
- 238000006477 desulfuration reaction Methods 0.000 claims description 4
- 230000023556 desulfurization Effects 0.000 claims description 4
- 238000004090 dissolution Methods 0.000 claims description 4
- 239000008187 granular material Substances 0.000 claims description 4
- 238000012856 packing Methods 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 230000014759 maintenance of location Effects 0.000 claims description 2
- 230000001376 precipitating effect Effects 0.000 claims description 2
- 239000013049 sediment Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 18
- 230000008569 process Effects 0.000 abstract description 12
- 238000003795 desorption Methods 0.000 abstract description 9
- 239000000203 mixture Substances 0.000 abstract description 6
- 230000029219 regulation of pH Effects 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000002203 pretreatment Methods 0.000 abstract description 2
- 238000005868 electrolysis reaction Methods 0.000 abstract 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 18
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 14
- 238000004064 recycling Methods 0.000 description 7
- 150000003839 salts Chemical class 0.000 description 4
- 230000001954 sterilising effect Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- UHOVQNZJYSORNB-UHFFFAOYSA-N monobenzene Natural products C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- RBORURQQJIQWBS-QVRNUERCSA-N (4ar,6r,7r,7as)-6-(6-amino-8-bromopurin-9-yl)-2-hydroxy-2-sulfanylidene-4a,6,7,7a-tetrahydro-4h-furo[3,2-d][1,3,2]dioxaphosphinin-7-ol Chemical compound C([C@H]1O2)OP(O)(=S)O[C@H]1[C@@H](O)[C@@H]2N1C(N=CN=C2N)=C2N=C1Br RBORURQQJIQWBS-QVRNUERCSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 235000010980 cellulose Nutrition 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-L phthalate(2-) Chemical compound [O-]C(=O)C1=CC=CC=C1C([O-])=O XNGIFLGASWRNHJ-UHFFFAOYSA-L 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000002952 polymeric resin Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
- C02F1/722—Oxidation by peroxides
-
- 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
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- 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
- C02F3/30—Aerobic and anaerobic processes
Abstract
The invention discloses a kind of integrated treatment technology of high concentration multicomponent organic wastewater, waste water is first passed through into pH regulation pretreatments, realize that removal and the resource conversion of organic matter, light electrolysis Feton mix after improving wastewater biodegradability with life water, condensed water, rinse water etc. by resin adsorption and desorption；Composite waste enters sulfate reduction phase UASB, by SO in composite waste4 2‑Be converted into sulfide, sulfide is oxidized to elemental sulfur under micro- oxygen aeration condition, and precipitation removes, after precipitation water outlet enter interior circulation UASB, reactor endoparticle sludge cuts down organic pollution to greatest extent；It is re-fed into biological contact oxidation pond and carries out Aerobic Process for Treatment, further ensures organic pollutant removal effect；The waste water after Aerobic Process for Treatment is finally subjected to advanced treating.The integrated treatment technology of the present invention has the advantages that simple to operate, biochemical efficiency is high, processing cost is low, realizes organic resourcesization and reclaimed, while depth water outlet can meet《Integrated wastewater discharge standard》Primary standard requirement.
Description
Technical field
The present invention relates to a kind of integrated treatment technology of wastewater treatment, more particularly to a kind of high concentration multicomponent organic waste
The integrated treatment technology of water.
Background technology
High concentration Multicomponent Wastewater is mainly characterized in that：First, organic matter especially COD concentration is high, up to tens of thousands of mg/L are even
Higher, biodegradability is poor, and B/C is generally less than 0.3；Second, complicated component, organism kinds are various, and entrainment portions are inorganic
Thing, salt ionic concentration is high, and such as high-concentration organic chemical wastewater contains benezene material, sulfide, high concentration food organic wastewater
Mainly include cellulose, carbohydrate, starch, inorganic salts etc.；Third, there is strong acid and strong base；Fourth, colourity is high, there is peculiar smell, give out
Pungent stench.
The Treatment process of such waste water is included both at home and abroad at present：Physico-chemical process such as Fenton oxidation, ozone oxidation etc., it is biochemical
Processing is also exactly mainly physico-chemical and biological treatment mode based on anaerobic-aerobic Combined Treatment method.For biochemical treatment,
The high environment of salt ionic concentration and difficult degradation toxic organic pollutantses（Organic pollution containing phenyl ring）To the activity of microorganism
Influence is very big, and it is abnormal can to directly result in its operation；For disruptive methods such as oxidations, processing cost is higher, and enterprise is typically difficult
To bear.The development trend of such waste water treatment is to use that the raw material organic matter in waste water recycle and administers control
The technology being combined, the recycling of waste is realized while waste water is administered, so as to reduce operating cost.Existing efficient, warp
Ji, feasible waste water treatment have membrane separation technique, extraction and absorption method etc., first two with the treatment technology that recycling is combined
If method be respectively present in operation fouling membrane, extractant selection it is improper can cause it is costly with purpose composition lock out operation
（It is generally separated using distillation）The problems such as, it is not easy to realize scale application.The preferable adsorbent of absorption property is main in absorption method
Active charcoal and resin, wherein regenerating active carbon are difficult, and the material of absorption is difficult to recycling, influences its popularization and application, and
It is existing using macroporous absorbent resin that styrene is skeleton and hypercrosslinked polymeric resin processes composition is single, water-soluble low organic matter
Waste water makes great progress, but when the inorganic salts containing higher concentration in waste water or water-soluble highly polar organic pollution
（Larger pH scopes are ionic state）, in general resin treatment ability is high.
From the analysis of above-mentioned summary as can be seen that various processing methods it is existing itself the advantages of exist again be difficult to overcome it is scarce
Point, in face of sewage drainage standard increasingly strict at present, single processing method technically and financially all exists certain
Problem.Therefore need to be directed to high concentration multicomponent organic wastewater feature, seek a kind of not only economic but also efficient handling process and realize
Effective processing to waste water, realize the recycling of recyclable organic matter while enable waste water qualified discharge.
The content of the invention
In order to solve the above problems, it is an object of the invention to provide one kind is simple to operate, biochemical efficiency is high, processing cost
It is low, realize that organic resourcesization reclaim, while depth stable effluent quality reaches《Integrated wastewater discharge standard》（GB8978-
1996）The integrated treatment technology of the high concentration multicomponent organic wastewater of first discharge standard requirement.
To achieve these goals, the technical solution adopted in the present invention is：
A kind of integrated treatment technology of high concentration multicomponent organic wastewater, comprises the following steps：
（1）Pretreatment
1. pH is adjusted：The thick suspension in organic wastewater is removed first with grid, is then added in organic wastewater after filtration
Enter sulphur acid for adjusting pH, pH is down to 1-2；
2. new type resin adsorbs：The organic matter in step 1. organic wastewater is adsorbed using new type resin, adsorption flow rate is
1.5 BV/h, new type resin are superhigh cross-linking type middle polarity resin NDA-66；
3. light electrolysis-Feton is handled：Using the organic wastewater of light electrolysis-Feton processing steps 2., improving organic wastewater can give birth to
The property changed, pH are controlled in 2-4, H2O2Dosage be organic wastewater volume 1/100-1/40；
4. waste water mixes：The organic wastewater of step 3. and life water, condensed water, rinse water are mixed, form composite waste, and lead to
Cross and add piece alkali or liquid caustic soda, composite waste pH is reached 7-8, ensure subsequent biochemical service condition；
（2）Anaerobic biochemical treatment
1. anaerobism coagulation：Composite waste is sent into sulfate reduction phase UASB reactors, makes the SO in composite waste4 2-Turn
Turn to sulfide, hydraulic detention time 18h, upflow velocity 0.15m/h；
2. micro- oxygen aeration and sedimentation：Micro- oxygen aeration tank is sent into the water outlet of sulfate reduction phase UASB reactors, makes sulfide in desulfurization
Elemental sulfur is oxidized under bacillus effect, and is removed through precipitation, hydraulic detention time 0.5h, dissolved oxygen 0.5-1.0mg/L；
3. anaerobism two stage treatment：Will micro- oxygen aeration and sedimentation water outlet be sent into circulation UASB reactors, hydraulic detention time 24h, on
Flow up fast 0.1-0.4m/h；
（3）Aerobic treatment
Biological contact oxidation pond, volumetric loading 0.4kgBOD/m are sent into interior circulation UASB reactors water outlet3D, hydraulic retention
Time 12.0-16.0h, dissolved oxygen 2.0-4.0mg/L, sludge concentration 4000-6000mg/L；
（4）Advanced treating
Organic wastewater after aerobic treatment is pumped into coagulative precipitation tank, polyaluminium sulfate progress coagulation is added into pond and is sunk
Form sediment, the dosage of polyaluminium sulfate is 40-70g/m3, carried out disinfection using chlorine dioxide to removing the composite waste after precipitating,
The dosage of chlorine dioxide is 15-25g/m3。
Be additionally included in step 2. new type resin absorption after, new type resin is desorbed adsorbed with reclaiming on resin it is organic
Thing, the composition of desorbing agent is the BV water of 1 BV mass fraction 8%NaOH solution+2.
Interior circulation UASB reactors described in anaerobic biochemical treatment step include housing, and the top of housing is respectively arranged with
Collecting methane pipe and outlet pipe, three phase separator are provided with the housing below collecting methane pipe and outlet pipe, lower housing portion is set
The water inlet pipe for stretching into enclosure interior is equipped with, housing inner bottom part is provided with water-locator, is provided with water inlet pipe and stretches into three-phase in housing
Return duct between separator and water-locator, reflux pump is provided with return duct, UASB reactor inner circulation structures is formed, with pump
Suction mode, which is realized in reactor, to be circulated, and inner circulation structure can improve upflow velocity, lift muddy water mixing efficiency, shorten sulfate also
Former phase UASB reactor start-up phases and granule sludge cultivation cycle, improve the dirty water decontamination handles efficiency and the lifting anti-load of reactor
Impact capacity；Other inner circulation structure can realize that volumetric loading is adjusted by adjusting reflux ratio.
The bottom of described biological contact oxidation pond is provided with training wall, and the section of training wall is triangular in shape, makes packing area
Water body circulation is formed, reduces hydraulic shear, is advantageous to activated sludge attachment, growth renewal, improves dissolution oxygen utilization rate,
Further ensure Organic Pollutants in Wastewater removal effect.
Beneficial effects of the present invention：
The integrated treatment process of the present invention is mainly using pretreatment（PH regulations, new type resin absorption, light electrolysis-Feton）+ detest
Oxygen biochemical treatment（The micro- oxygen aeration and sedimentations of sulfate reduction phase UASB++interior circulation UASB）+ bio-contact oxidation Aerobic Process for Treatment+mixed
Retrogradation shallow lake-filtering and the COMBINED PROCESS of sterilization process advanced treating.Waste water first passes through pH regulation pretreatments, is inhaled by resin
Removal and resource conversion that desorption realizes organic matter are echoed, light electrolysis-Feton can improve wastewater biodegradability, and waste water can give birth to
The property changed mixes after improving with life water, condensed water, rinse water etc.；Composite waste enters sulfate reduction phase UASB, passes through biochemistry
Act on SO in composite waste4 2-Sulfide is converted into, sulfide is oxidized to elemental sulfur under micro- oxygen aeration condition, precipitated
To remove, after precipitation water outlet enter interior circulation UASB, reactor endoparticle sludge cuts down organic pollution to greatest extent；Then again
Composite waste after interior circulation UASB processing is sent into biological contact oxidation pond and carries out Aerobic Process for Treatment, is adhered on pond body filler rich
Rich microbiologic population and dissolved oxygen rationally utilizes, and further ensures organic pollutant removal effect；Finally by after Aerobic Process for Treatment
Waste water advanced treating is carried out using coagulating sedimentation-filtering and sterilization process, regulation is passed through according to the treatment effect of biochemical system
Chemical feeding quantity ensures effluent quality.The integrated treatment technology of the present invention has that simple to operate, biochemical efficiency is high, processing cost is low, real
The advantages that existing organic resourcesization recovery, while depth water outlet can meet《Integrated wastewater discharge standard》（GB8978-1996）One
Level standard requirement.
Brief description of the drawings
Fig. 1 is the interior circulation UASB structural representations of the present invention.
Embodiment
The embodiment of the present invention is described in further detail with reference to embodiments.Made in following embodiments
Method is the conventional method of this area unless otherwise specified, or is walked according to the condition proposed by manufacturer with implementing
Suddenly.
Embodiment 1
Henan plasticizer chemical plant uses core technology of the present invention（Resin adsorption+light electrolysis-Feton+ sulfate reduction phases
The micro- oxygen aerated precipitation tanks of UASB++interior circulation UASB+ improvement bio-contact oxidation+coagulating sedimentation-filtering sterilization）It is organic to the factory
Waste water is handled, organic wastewater water-quality COD≤45000mg/L, NH3-N≤1.0mg/L、SO4 2-≤ 15000mg/L, adjacent benzene two
Formic acid≤20000mg/L, B/C ＜ 0.1, water about 100m3。
Specifically integrated treatment technology is：
（1）Pretreatment
1. pH is adjusted：The thick suspension in organic wastewater is removed first with grid, grid spacing 5mm, then after filtration
Sulphur acid for adjusting pH is added in organic wastewater, pH is down to 1-2；
2. new type resin adsorbs：The phthalic acid in step 1. organic wastewater is adsorbed using new type resin, absorption stream
Speed is 1.5 BV/h, and new type resin is superhigh cross-linking type middle polarity resin NDA-66, have adsorption capacity is big, desorption rate is high,
The advantages of mechanical strength is good, service life is long, easily form suction-operated, the suction to phthalic acid with the polar molecule in waste water
Attached clearance and desorption rate are high, and the recycling that phthalic acid in waste water can be achieved recycles；
3. resin desorption：The phthalic acid adsorbed to reclaim on resin is desorbed to new type resin, the composition of desorbing agent is 1
The BV water of BV mass fraction 8%NaOH solution+2, for desorption rate up to more than 99.99%, the phthalic acid after recovery is recycling；
4. light electrolysis-Feton is handled：Using the organic wastewater of light electrolysis-Feton processing steps 3., pH is controlled in 2-4, H2O2
Dosage be organic wastewater volume 1/100-1/40, improve organic wastewater biodegradability；
5. waste water mixes：The organic wastewater of step 4. and life water, condensed water, rinse water are mixed, form composite waste, and lead to
Cross and add piece alkali, composite waste pH is reached 7-8, ensure subsequent biochemical service condition；
After pretreatment, COD and phthalate content substantially reduce organic wastewater, and COD≤6000mg/L, phthalic acid≤
200mg/L, after organic wastewater is with the mixing such as life water, condensed water, rinse water after pretreatment, COD≤3500mg/L, SO4 2-≤
3000mg/L, phthalic acid≤40mg/L, mixing water 1000m3；
（2）Anaerobic biochemical treatment
1. anaerobism coagulation：Composite waste is sent into sulfate reduction phase UASB reactors, makes the SO in composite waste4 2-Turn
Turn to sulfide, hydraulic detention time 18h, upflow velocity 0.15m/h, to SO4 2-Clearance 60-80%；
2. micro- oxygen aeration and sedimentation：Micro- oxygen aeration tank is sent into the water outlet of sulfate reduction phase UASB reactors, makes sulfide in desulfurization
Elemental sulfur is oxidized under bacillus effect, and through precipitation（2.0h）Remove, hydraulic detention time 0.5h, dissolved oxygen 0.5-1.0mg/L；
3. anaerobism two stage treatment：Interior circulation UASB reactors, reactor volume load 4.75 are sent into micro- oxygen aeration and sedimentation water outlet
kgCOD/m3D, hydraulic detention time 24h, upflow velocity 0.1-0.4m/h, reflux ratio 50-300%, to COD clearances 50-
70%；
Described interior circulation UASB reactors include housing 1, and the top of housing is respectively arranged with collecting methane pipe 2 and outlet pipe 3,
Three phase separator 4 is provided with collecting methane pipe 2 and the housing of the lower section of outlet pipe 3, lower housing portion, which is provided with, stretches into enclosure interior
Water inlet pipe 7, housing inner bottom part is provided with water-locator 8, is provided with water inlet pipe 7 and stretches into three phase separator and water-locator in housing
Return duct 5 between 8, reflux pump 6 is provided with return duct, forms UASB reactor inner circulation structures, realized in a manner of pumping
Circulated in reactor, inner circulation structure can improve upflow velocity, lift muddy water mixing efficiency, and it is anti-to shorten sulfate reduction phase UASB
Answer device starting period and granule sludge cultivation cycle, improve the dirty water decontamination handles efficiency and the lifting anti-load impact ability of reactor；
Other inner circulation structure can realize that volumetric loading is adjusted by adjusting reflux ratio；
（3）Aerobic treatment
Biological contact oxidation pond is sent into interior circulation UASB reactors water outlet, biofilm thickness 5mm in pond, volumetric loading
0.4kgBOD/m3D, hydraulic detention time 16.0h, dissolved oxygen 2.0-4.0mg/L, sludge concentration 4000-6000mg/L, water outlet
COD and NH3- N mean concentrations are respectively 158.5mg/L and 8.6mg/L；
The bottom of described biological contact oxidation pond is provided with training wall, and the section of training wall is triangular in shape, forms packing area
Water body circulation, reduces hydraulic shear, is advantageous to activated sludge attachment, growth renewal, improves dissolution oxygen utilization rate, enter one
Step ensures Organic Pollutants in Wastewater removal effect；
（4）Advanced treating
Composite waste after aerobic treatment is pumped into coagulative precipitation tank, according to aerobic treatment water quality situation, passes through meter
Amount pump adds polyaluminium sulfate into pond and carries out coagulating sedimentation, dosage 40-70g/m3, after being precipitated using chlorine dioxide to removal
Organic wastewater carry out disinfection, dosage 15-25g/m3.Disinfect rear water outlet COD≤100mg/L, NH3- N≤10mg/L, SS
≤ 30mg/L, meet《Integrated wastewater discharge standard》（GB8978-1996）Primary standard requirement.
Embodiment 2
Henan corn distillery uses core technology of the present invention（Resin adsorption+light electrolysis-Feton+interior circulation UASB+ improvement
Bio-contact oxidation+coagulating sedimentation-filtering sterilization）Factory's composite waste is handled, organic wastewater water-quality COD≤
30000mg/L、NH3- N≤150mg/L, SS≤30000mg/L, acetic acid≤500mg/L, water about 200m3。
Specifically integrated treatment technology is：
（1）Pretreatment
1. pH is adjusted：The thick suspension in organic wastewater is removed first with grid, grid spacing 5mm, then after filtration
Sulphur acid for adjusting pH is added in organic wastewater, pH is down to 1-2；
2. new type resin adsorbs：The acetic acid in step 1. organic wastewater is adsorbed using new type resin, adsorption flow rate 1.5
BV/h, new type resin are superhigh cross-linking type middle polarity resin NDA-66, with adsorption capacity is big, desorption rate is high, mechanical strength
Well, the advantages of service life is long, suction-operated easily is formed with the polar molecule in waste water, to the eliminating rate of absorption and desorption of acetic acid
Rate is high, and the recycling that acetic acid in waste water can be achieved recycles；
3. resin desorption：The acetic acid adsorbed to reclaim on resin is desorbed to new type resin, the composition of desorbing agent is 1 BV matter
Measure the BV water of fraction 8%NaOH solution+2；
4. light electrolysis-Feton is handled：Using the organic wastewater of light electrolysis-Feton processing steps 3., pH is controlled in 2-4, H2O2
Dosage be organic wastewater volume 1/100-1/40, improve organic wastewater biodegradability；
5. waste water mixes：The organic wastewater of step 4. and life water, condensed water, rinse water are mixed, form composite waste, mixing
Waste water COD≤3500 mg/L, NH3- N≤35mg/L, SS≤800mg/L, acetic acid≤15mg/L, mixing water 2000m3, and lead to
Cross and add piece alkali, composite waste pH is reached 7-8, ensure subsequent biochemical service condition；
（2）Anaerobic biochemical treatment
1. anaerobism coagulation：Composite waste is sent into sulfate reduction phase UASB reactors, makes the SO in composite waste4 2-Turn
Turn to sulfide, hydraulic detention time 18h, upflow velocity 0.15m/h；
2. micro- oxygen aeration and sedimentation：Micro- oxygen aeration tank is sent into the water outlet of sulfate reduction phase UASB reactors, makes sulfide in desulfurization
Elemental sulfur is oxidized under bacillus effect, and is removed through precipitation, hydraulic detention time 0.5h, dissolved oxygen 0.5-1.0mg/L；
3. anaerobism two stage treatment：Interior circulation UASB reactors, reactor volume load 4.75 are sent into micro- oxygen aeration and sedimentation water outlet
kgCOD/m3D, hydraulic detention time 24h, upflow velocity 0.1-0.4m/h, reflux ratio 50-300%, to COD clearances 65-
85%；
Described interior circulation UASB reactors include housing 1, and the top of housing is respectively arranged with collecting methane pipe 2 and outlet pipe 3,
Three phase separator 4 is provided with collecting methane pipe 2 and the housing of the lower section of outlet pipe 3, lower housing portion, which is provided with, stretches into enclosure interior
Water inlet pipe 7, housing inner bottom part is provided with water-locator 8, is provided with water inlet pipe 7 and stretches into three phase separator and water-locator in housing
Return duct 5 between 8, reflux pump 6 is provided with return duct, forms UASB reactor inner circulation structures, realized in a manner of pumping
Circulated in reactor, inner circulation structure can improve upflow velocity, lift muddy water mixing efficiency, and it is anti-to shorten sulfate reduction phase UASB
Answer device starting period and granule sludge cultivation cycle, improve the dirty water decontamination handles efficiency and the lifting anti-load impact ability of reactor；
Other inner circulation structure can realize that volumetric loading is adjusted by adjusting reflux ratio；
（3）Aerobic treatment
Biological contact oxidation pond is sent into interior circulation UASB reactors water outlet, biofilm thickness 5mm in pond, volumetric loading
0.4kgBOD/m3D, hydraulic detention time 12.0h, dissolved oxygen 2.0-4.0mg/L, sludge concentration 4000-6000mg/L are right
COD and NH3- N clearances are respectively 75-90% and 90-99%；
The bottom of described biological contact oxidation pond is provided with training wall, and the section of training wall is triangular in shape, forms packing area
Water body circulation, reduces hydraulic shear, is advantageous to activated sludge attachment, growth renewal, improves dissolution oxygen utilization rate, enter one
Step ensures Organic Pollutants in Wastewater removal effect；
（4）Advanced treating
Composite waste after aerobic treatment is pumped into coagulative precipitation tank, according to aerobic treatment water quality situation, passes through meter
Amount pump adds polyaluminium sulfate into pond and carries out coagulating sedimentation, dosage 40-70g/m3, after being precipitated using chlorine dioxide to removal
Organic wastewater carry out disinfection, dosage 15-25g/m3.Disinfect COD average out to 45mg/L, NH of rear water outlet3- N average out to
0.7mg/L, SS≤30mg/L, meet industrial circulating cooling water supplement water requirement.
The optimal embodiment of the present invention is the foregoing is only, for those skilled in the art, the present invention can have
Various modifications and variations.Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., all should
Within protection scope of the present invention.
Claims (4)
1. a kind of integrated treatment technology of high concentration multicomponent organic wastewater, it is characterised in that comprise the following steps：
（1）Pretreatment
1. pH is adjusted：The thick suspension in organic wastewater is removed first with grid, is then added in organic wastewater after filtration
Enter sulphur acid for adjusting pH, pH is down to 1-2；
2. new type resin adsorbs：The organic matter in step 1. organic wastewater is adsorbed using new type resin, adsorption flow rate is
1.5 BV/h, new type resin are superhigh cross-linking type middle polarity resin NDA-66；
3. light electrolysis-Feton is handled：Using the organic wastewater of light electrolysis-Feton processing steps 2., improving organic wastewater can give birth to
The property changed, pH are controlled in 2-4, H2O2Dosage be organic wastewater volume 1/100-1/40；
4. waste water mixes：The organic wastewater of step 3. and life water, condensed water, rinse water are mixed, form composite waste, and lead to
Cross and add piece alkali or liquid caustic soda, composite waste pH is reached 7-8, ensure subsequent biochemical service condition；
（2）Anaerobic biochemical treatment
1. anaerobism coagulation：Composite waste is sent into sulfate reduction phase UASB reactors, makes the SO in composite waste4 2-Turn
Turn to sulfide, hydraulic detention time 18h, upflow velocity 0.15m/h；
2. micro- oxygen aeration and sedimentation：Micro- oxygen aeration tank is sent into the water outlet of sulfate reduction phase UASB reactors, makes sulfide in desulfurization
Elemental sulfur is oxidized under bacillus effect, and is removed through precipitation, hydraulic detention time 0.5h, dissolved oxygen 0.5-1.0mg/L；
3. anaerobism two stage treatment：Will micro- oxygen aeration and sedimentation water outlet be sent into circulation UASB reactors, hydraulic detention time 24h, on
Flow up fast 0.1-0.4m/h；
（3）Aerobic treatment
Biological contact oxidation pond, volumetric loading 0.4kgBOD/m are sent into interior circulation UASB reactors water outlet3D, during hydraulic retention
Between 12.0-16.0h, dissolved oxygen 2.0-4.0mg/L, sludge concentration 4000-6000mg/L；
（4）Advanced treating
Organic wastewater after aerobic treatment is pumped into coagulative precipitation tank, polyaluminium sulfate progress coagulation is added into pond and is sunk
Form sediment, the dosage of polyaluminium sulfate is 40-70g/m3, carried out disinfection using chlorine dioxide to removing the composite waste after precipitating,
The dosage of chlorine dioxide is 15-25g/m3。
2. the integrated treatment technology of high concentration multicomponent organic wastewater according to claim 1, it is characterised in that also include
After step 2. new type resin absorption, the organic matter adsorbed to reclaim on resin, the group of desorbing agent are desorbed to new type resin
As the BV water of 1 BV mass fraction 8%NaOH solution+2.
3. the integrated treatment technology of high concentration multicomponent organic wastewater according to claim 1, it is characterised in that anaerobism is given birth to
Changing the interior circulation UASB reactors described in processing step includes housing（1）, the top of housing is respectively arranged with collecting methane pipe
（2）And outlet pipe（3）, collecting methane pipe（2）And outlet pipe（3）Three phase separator is provided with the housing of lower section（4）, under housing
Portion is provided with the water inlet pipe for stretching into enclosure interior（7）, housing inner bottom part is provided with water-locator（8）, water inlet pipe（7）On be provided with and stretch
Enter three phase separator and water-locator in housing（8）Between return duct（5）, reflux pump is provided with return duct（6）, form UASB
Reactor inner circulation structure, realized in reactor and circulated in a manner of pumping, inner circulation structure can improve upflow velocity, lift muddy water
Mixing efficiency, shorten sulfate reduction phase UASB reactor start-up phases and granule sludge cultivation cycle, improve the dirty water decontamination handles
Efficiency and the lifting anti-load impact ability of reactor；Other inner circulation structure can realize that volumetric loading is adjusted by adjusting reflux ratio
Section.
4. the integrated treatment technology of high concentration multicomponent organic wastewater according to claim 1, it is characterised in that described
The bottom of biological contact oxidation pond is provided with training wall, and the section of training wall is triangular in shape, packing area is formed water body circulation, subtracts
Small hydraulic shear, be advantageous to activated sludge attachment, growth renewal, improve dissolution oxygen utilization rate, further ensure waste water
Middle organic pollutant removal effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710624283.0A CN107399877A (en) | 2017-07-27 | 2017-07-27 | A kind of integrated treatment technology of high concentration multicomponent organic wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710624283.0A CN107399877A (en) | 2017-07-27 | 2017-07-27 | A kind of integrated treatment technology of high concentration multicomponent organic wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107399877A true CN107399877A (en) | 2017-11-28 |
Family
ID=60401262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710624283.0A Pending CN107399877A (en) | 2017-07-27 | 2017-07-27 | A kind of integrated treatment technology of high concentration multicomponent organic wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107399877A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108046427A (en) * | 2018-01-09 | 2018-05-18 | 衢州学院 | Low C/S is than the anaerobic bio-treated method of sulfate-containing organic wastewater under room temperature |
| CN109665617A (en) * | 2019-02-15 | 2019-04-23 | 南京工业大学 | A kind of anaerobic digestion device and its application in processing organic wastewater |
| CN110156267A (en) * | 2019-05-30 | 2019-08-23 | 中国科学院生态环境研究中心 | The micro- oxygen of catalysis oxidation-strengthens process for purifying water and water purification system |
| CN111689659A (en) * | 2020-07-13 | 2020-09-22 | 福建中盟环保科技有限公司 | Integrated vertical high-concentration sulfate wastewater treatment device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202246251U (en) * | 2011-10-28 | 2012-05-30 | 郑州大学 | Internal circulation upflow anaerobic sludge bed (UASB) reactor for improving waste water treatment efficiency |
| CN103193366A (en) * | 2013-05-04 | 2013-07-10 | 郑州大学 | Integrated treatment method of corn alcohol wastewater |
| CN103641281A (en) * | 2013-12-25 | 2014-03-19 | 郑州大学环境技术咨询工程公司 | High-salt organic industrial wastewater treatment process method |
| WO2014161877A1 (en) * | 2013-04-03 | 2014-10-09 | Universtiy Of Ljubljana | Method for anaerobic co-treatment of cyanide contaminated water and wastewater comprising fermentable organic material |
-
2017
- 2017-07-27 CN CN201710624283.0A patent/CN107399877A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202246251U (en) * | 2011-10-28 | 2012-05-30 | 郑州大学 | Internal circulation upflow anaerobic sludge bed (UASB) reactor for improving waste water treatment efficiency |
| WO2014161877A1 (en) * | 2013-04-03 | 2014-10-09 | Universtiy Of Ljubljana | Method for anaerobic co-treatment of cyanide contaminated water and wastewater comprising fermentable organic material |
| CN103193366A (en) * | 2013-05-04 | 2013-07-10 | 郑州大学 | Integrated treatment method of corn alcohol wastewater |
| CN103641281A (en) * | 2013-12-25 | 2014-03-19 | 郑州大学环境技术咨询工程公司 | High-salt organic industrial wastewater treatment process method |
Non-Patent Citations (1)
| Title |
|---|
| 刘转年等: "《环保设备基础》", 31 January 2013, 徐州：中国矿业大学出版社 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108046427A (en) * | 2018-01-09 | 2018-05-18 | 衢州学院 | Low C/S is than the anaerobic bio-treated method of sulfate-containing organic wastewater under room temperature |
| CN109665617A (en) * | 2019-02-15 | 2019-04-23 | 南京工业大学 | A kind of anaerobic digestion device and its application in processing organic wastewater |
| CN109665617B (en) * | 2019-02-15 | 2024-01-19 | 南京工业大学 | Anaerobic digestion device and application thereof in treatment of organic wastewater |
| CN110156267A (en) * | 2019-05-30 | 2019-08-23 | 中国科学院生态环境研究中心 | The micro- oxygen of catalysis oxidation-strengthens process for purifying water and water purification system |
| CN111689659A (en) * | 2020-07-13 | 2020-09-22 | 福建中盟环保科技有限公司 | Integrated vertical high-concentration sulfate wastewater treatment device |
| CN111689659B (en) * | 2020-07-13 | 2023-11-24 | 福建中盟环保有限公司 | Integrated vertical high-concentration sulfate wastewater treatment device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102086075B (en) | Deep treatment process of landfill leachate | |
| CN102092870B (en) | Sewage treatment equipment and process for concentration/chemical oxidation regeneration of absorbent | |
| CN101428941B (en) | Process for treating wastewater from pulping papermaking | |
| CN206476860U (en) | A kind of oily waste water treatment reclamation set | |
| CN107399877A (en) | A kind of integrated treatment technology of high concentration multicomponent organic wastewater | |
| CN105731724B (en) | A kind of offshore platform life sewage treatment and reuse method with high salt | |
| CN103641281B (en) | A kind of organic industrial sewage treatment process method high in salt | |
| CN106242163A (en) | A kind of processing method of percolate embrane method concentrated solution | |
| CN104671613B (en) | A kind for the treatment of process of percolate from garbage filling field | |
| CN102225827B (en) | Treatment method for wastewater from straw pulp papermaking intermediate section | |
| CN105693014A (en) | Sewage treatment system and sewage treatment method | |
| CN103449684B (en) | High-toxicity coking phenol-cyanogen waste water recycling system and method | |
| CN205676312U (en) | A kind of offshore platform high salt life sewage treatment and reuse equipment | |
| CN107215998A (en) | A kind of deep treatment method of waste water | |
| CN107857401A (en) | A kind of percolate nanofiltration concentrate treatment combined device | |
| CN201873595U (en) | High-salt and high-organic matter chemical sewage treatment system | |
| CN207062081U (en) | A kind of pharmaceutical wastewater processing system | |
| CN106430866A (en) | Synthetic rubber processing waste water treatment device and method | |
| CN105776741A (en) | Refuse pyrolysis comprehensive sewage treatment system and method | |
| CN205974184U (en) | Processing system of landfill leachate embrane method concentrate | |
| CN205556157U (en) | Industrial waste water advanced treatment unit based on nanometer titanium dioxide takes photocatalysis | |
| CN105693007B (en) | It is a kind of can be with the chemical engineering sewage advanced treatment system of deodorization | |
| CN101786716B (en) | High-concentration difficult-degradation organic sewage treating system | |
| CN101870505B (en) | Method for using powdered resin for advanced treatment and reuse of printing and dyeing wastewater | |
| CN206624744U (en) | Light electrolysis Fenton EGSB A/O BCO BAF coagulating treatment pharmacy waste water systems |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171128 |