CN105541005A - Degradation-resistant salt chemical wastewater deep treatment method - Google Patents
Degradation-resistant salt chemical wastewater deep treatment method Download PDFInfo
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- CN105541005A CN105541005A CN201510954937.7A CN201510954937A CN105541005A CN 105541005 A CN105541005 A CN 105541005A CN 201510954937 A CN201510954937 A CN 201510954937A CN 105541005 A CN105541005 A CN 105541005A
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- 239000002351 wastewater Substances 0.000 title claims abstract description 55
- 238000000034 method Methods 0.000 title claims abstract description 45
- 230000015556 catabolic process Effects 0.000 title claims abstract description 19
- 238000006731 degradation reaction Methods 0.000 title claims abstract description 19
- 150000003839 salts Chemical class 0.000 title claims abstract description 17
- 239000000126 substance Substances 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- 230000000694 effects Effects 0.000 claims abstract description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 18
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims abstract description 15
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 12
- 238000004062 sedimentation Methods 0.000 claims abstract description 7
- 230000001112 coagulating effect Effects 0.000 claims abstract description 6
- 238000003889 chemical engineering Methods 0.000 claims description 15
- 239000002699 waste material Substances 0.000 claims description 11
- 230000003647 oxidation Effects 0.000 claims description 8
- 238000007254 oxidation reaction Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 7
- 230000001954 sterilising effect Effects 0.000 claims description 7
- -1 phosphorus compound Chemical class 0.000 claims description 6
- 238000004659 sterilization and disinfection Methods 0.000 claims description 6
- 238000005728 strengthening Methods 0.000 claims description 6
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims description 5
- 230000000813 microbial effect Effects 0.000 claims description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims description 4
- 239000011574 phosphorus Substances 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 239000000701 coagulant Substances 0.000 claims description 3
- 238000005189 flocculation Methods 0.000 claims description 3
- 230000016615 flocculation Effects 0.000 claims description 3
- 239000013049 sediment Substances 0.000 claims description 3
- 239000012028 Fenton's reagent Substances 0.000 claims description 2
- 229920002401 polyacrylamide Polymers 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 20
- 238000009303 advanced oxidation process reaction Methods 0.000 abstract description 4
- 239000003344 environmental pollutant Substances 0.000 abstract description 4
- 231100000719 pollutant Toxicity 0.000 abstract description 4
- 239000010842 industrial wastewater Substances 0.000 abstract description 2
- 238000004065 wastewater treatment Methods 0.000 abstract description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 238000012668 chain scission Methods 0.000 abstract 1
- 150000003018 phosphorus compounds Chemical class 0.000 abstract 1
- 238000007142 ring opening reaction Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 10
- 239000010865 sewage Substances 0.000 description 9
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 4
- 239000006228 supernatant Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- VMHZXXPDUOVTHD-UHFFFAOYSA-N 2,3,4-trichloropyridine Chemical compound ClC1=CC=NC(Cl)=C1Cl VMHZXXPDUOVTHD-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 241000370738 Chlorion Species 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005842 biochemical reaction Methods 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- 238000009298 carbon filtering Methods 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 229910001448 ferrous ion Inorganic materials 0.000 description 1
- 235000003891 ferrous sulphate Nutrition 0.000 description 1
- 239000011790 ferrous sulphate Substances 0.000 description 1
- 239000010921 garden waste Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 1
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 230000002906 microbiologic effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—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
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- 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
- C02F2003/001—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms
- C02F2003/003—Biological treatment of water, waste water, or sewage using granular carriers or supports for the microorganisms using activated carbon or the like
-
- 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
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
-
- 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
Abstract
The present invention discloses a degradation-resistant salt chemical wastewater deep treatment method, after biochemical treatment, wastewater enters a Fenton process reaction tank, ring opening and chain scission are performed on most of degradation-resistant organics in the wastewater, the organics are further removed, the purpose of biochemical improvement of some organics can be achieved, meanwhile phosphorus compounds in the wastewater can be removed by coagulating sedimentation; effluent is lifted by a pump to enter a highly effective biological carbon filter, unremoved organics are removed by a biofilm and activated carbon, and COD, chromaticity and ammonia of water are reduced; the effluent is disinfected and decolorized under the effect of UV / ozone for further reduction of the COD to achieve up-to-standard wastewater discharge. By setting of an advanced oxidation process before and after the deep biological treatment process, the effective deep wastewater treatment can be achieved, discharge of the treated industrial wastewater can meet standards for each index, and emissions of pollutants to surrounding environment can be reduced.
Description
Technical field
The present invention relates to a kind of technology for treating industrial waste water, particularly relate to a kind of difficult degradation salt chemical engineering advanced waste treatment method, belong to environment-protection wastewater process field.
Background technology
In salt chemical engineering garden, enterprise is numerous, its product produced is different, specifically there are the number of chemical products such as photostabilizer, rubber ingredients, medicine intermediate, trichloropyridine, white dyes, molecular sieve, the waste water complicated causing it to discharge, containing many phenyl ring class hardly degraded organic substance compositions, chlorion and the aniline category matter etc. larger on nitrification impact; Various wastewater mixes its Chemical Composition contained and generates again new chemical substance through reaction, adds complicacy and the intractability of this waste water quality undoubtedly, and with more chromophoric group in waste water, presents distinct colors change after chemical reaction.This type of waste water enters urban wastewater treatment firm process and is entering two stage biological treatment system through overregulating, after the pretreatment technology such as coagulating sedimentation under the prerequisite reaching " sewage enters municipal sewage system water quality standard CJ343-2010 ", and process effluent index is still higher.This is not mainly because upstream blowdown enterprise production time and product category have the set time, the draining composition of each time period is all different, and the waste water of upstream blowdown enterprise discharge is difficult to the adapter water quality standard requirement meeting national regulation completely, Sewage Plant operation enterprise does not have again law enforcement power to report Environmental Protection Agency to implement supervision by timely monitor, and the adapter water quality standard that the mixed sample water quality in Sewage Plant in equalizing tank can reach national regulation is all well and good.Many-sided factor processes such waste water to sewage work and improves difficulty and cost.
At present, the treatment process for comprehensive trade effluent is mainly divided into biological process, Physical and chemical method.BAF is the biological treatment that trade effluent tertiary treatment generally adopts, be used widely because of features such as its floor space are little, processing efficiency is high, strong shock resistance, water treatment effect are good, but Persistent organic pollutants are as the existence of trichloropyridine, aniline etc., wastewater biodegradability after biochemical treatment is reduced, is still difficult to reach processing requirements.A small amount of organic pollutant composition and most of SS can only be removed by coagulating sedimentation, lower advanced treatment effect can only be played.Though the general degree of recognition of the high-level oxidation technology ozone oxidation effect generally adopted is better, cost is higher, and also cannot reach desirable treatment effect for this type of waste water adds excessive concentration ozone when COD reaches more than 200mg/L; Though independent Fenton oxidation technology is verified by experiment can reach treatment effect but cost is still not low relatively preferably to a certain extent; And the effect of getting instant result can be played for the M180 strong oxidizer of trade effluent exploitation in market to this waste water, but the Gao Shi sewage disposal enterprise of cost is difficult to accept, and this medicament to have severe corrosive relatively high to equipment requirements.Membrane technique is advanced treatment process relatively ripe on market, after membrane filtration, effluent quality can reach emission request, but still there is the dense water problems of about 20% to need to solve, the biodegradability extreme difference of this part water, and Pollutant levels wherein improve a lot after membrane concentration, still need to process, this just makes this type of waste water of this art breading there is bottleneck problem.
Due to diversity and the complicacy of salt chemical engineering garden waste water, existing single technique or conventional depth treatment process economically or technically cannot meet the requirement of advanced treatment, and how to reduce operation and investment cost as far as possible, and the requirement reaching salinization garden Sewage advanced treatment qualified discharge is the problem needing solution badly.
Summary of the invention
The object of this invention is to provide a kind of difficult degradation salt chemical engineering advanced waste treatment method.
The object of the invention is to be achieved through the following technical solutions:
Difficult degradation salt chemical engineering advanced waste treatment method of the present invention, comprises step:
First, waste water, by entering Fenton technological reaction pond after biochemical treatment, by the most of hardly degraded organic substance open loop chain rupture in waste water, and removes this organism further, and realize the object of part Biochemical raising, remove the phosphorus compound in waste water by coagulating sedimentation simultaneously;
Then, to promote through pump through water outlet and enter high-performance bio carbon filter, the organism do not removed under the effect of microbial film and gac, reduce COD, colourity and the ammonia nitrogen in water;
Finally, water outlet realizes sterilization, decolouring and reduces COD further under the effect of UV/ozone, realizes discharged wastewater met the national standard.
As seen from the above technical solution provided by the invention, the difficult degradation salt chemical engineering advanced waste treatment method that the embodiment of the present invention provides, by arranging advanced oxidation processes before and after degree of depth biological treatment, realize the effective advanced treatment of this waste water, make each index qualified discharge of the trade effluent after process, reduce the pollutant emission to surrounding enviroment water body.
Accompanying drawing explanation
The schematic flow sheet of the difficult degradation salt chemical engineering advanced waste treatment method that Fig. 1 provides for the embodiment of the present invention.
Embodiment
To be described in further detail the embodiment of the present invention below.
Difficult degradation salt chemical engineering advanced waste treatment method of the present invention, its preferably embodiment be:
Comprise step:
First, waste water, by entering Fenton technological reaction pond after biochemical treatment, by the most of hardly degraded organic substance open loop chain rupture in waste water, and removes this organism further, and realize the object of part Biochemical raising, remove the phosphorus compound in waste water by coagulating sedimentation simultaneously;
Then, to promote through pump through water outlet and enter high-performance bio carbon filter, the organism do not removed under the effect of microbial film and gac, reduce COD, colourity and the ammonia nitrogen in water;
Finally, water outlet realizes sterilization, decolouring and reduces COD further under the effect of UV/ozone, realizes discharged wastewater met the national standard.
According to the changing conditions of water quality, when waste water difficult degradation composition increases, increase the dosage of Fenton reagent and add polyacrylamide coagulant aids, strengthening flocculation sediment effect;
When chroma in waste water increases and COD is higher, in Fenton technological reaction pond, add appropriate Powdered Activated Carbon, and increase ozone dosage and open ultraviolet, realize UV ozone combined action strengthening advanced oxidation function.
Difficult degradation salt chemical engineering advanced waste treatment method of the present invention, by arranging advanced oxidation processes before and after degree of depth biological treatment, realize the effective advanced treatment of this waste water, make each index qualified discharge of the trade effluent after process, reduce the pollutant emission to surrounding enviroment water body.
The present invention, by being effectively combined with degree of depth biologic treating technique by high-level oxidation technology, carrying out advanced treatment to difficult degradation salt chemical engineering waste water, realizes this discharged wastewater met the national standard.Beneficial effect of the present invention is as follows:
1) combination of Fenton technique, biological carbon filter tank technique and ozone high grade oxidation technology is organically combined physics, chemistry and bioremediation, for the different molecular structures in each stage waste water of process and the organism of molecular weight, pointed treatment technology is adopted to achieve the comprehensive action of salt chemical engineering waste water de-carbon, decolouring, deammoniation nitrogen and dephosphorization, improve the effluent quality of waste water, ensure this discharged wastewater met the national standard.
2) technique adjustment mode flexibly, can adapt to the change of water quality of waste water, ensures standard water discharge.
3) technical process is simple, and maintenance management is convenient, cost low (reducing 10%-20%) and processing efficiency high (clearance improves 5%-15%).
Difficult degradation salt chemical engineering advanced waste treatment method of the present invention, takes into account several functions and effect realizes the discharge of waste water high-quality.The method is specific as follows:
(1) waste water is by entering the Fenton technological reaction pond of this system after biochemical treatment: (pH=3-4) adds the H of ferrous sulfate (200-400mg/L) and 30% in acid condition
2o
2(1-2mmol/L), mix under the effect of stirring; Ferrous ion and H
2o
2the reaction hardly degraded organic substance generated in strong oxidative free radical and water reacts and is degraded to the easy organism that reacts or CO in acid condition
2and H
2o removes, then in order to ensure water outlet SS and waste water potential of hydrogen by this waste water alkali tune to pH=7-8, in the basic conditions and formed under the effect of oxygenant ferric flocculant together with the SS in waste water and part non-degradation of organic substances and phosphorus compound coprecipitation get off, supernatant liquor is promoted to next process section through pump; Conversion zone hydraulic detention time 20-40min, sedimentation time 0.5-1h.
In step (1), according to the changing conditions of water quality, can suitably adjust Fenton operation process: after a.Fenton technological reaction, during the more more difficult precipitation of supernatant liquor suspended substance, appropriate coagulant aids can be added, dosage is 1.5-3mg/L, strengthen flocculation sediment effect, improve the treatment effect of Fenton technique; B. come colority of water increase and COD higher time, appropriate PAC is added in Fenton reaction tank, dosage is 50-150mg/L, and the adsorption by PAC improves COD clearance and the chromaticity removing effect of waste water, and the PAC carried secretly in supernatant liquor can enter next process section with current.
(2) Fenton technological reaction supernatant liquor promotes through pump and enters enhanced biological carbon filter and carry out biochemical reaction, under the Degradation of the absorption of gac, microorganism, and the removal of COD, colourity and ammonia nitrogen in strengthening waste water; Adopt the amorphous coal mass active carbon of modification as bio-carrier in biological carbon filter tank, its specific surface area 1100m
2/ more than g; Within the scope of biological carbon layer height 1.2-1.6m, hydraulic detention time 1.0-1.5h; The Powdered Activated Carbon that a upper process section brings can realize effectively accumulating and retaining at this, with the gac in pond jointly for microorganism provides carrier, reduces colourity and the SS of water outlet; Simultaneously because microbiological deterioration adsorption reduces the absorption load of gac, and there is regeneration to gac, extend the work-ing life of gac.
(3) water outlet of high-performance bio carbon filtering pool enters ozone contact tank, mainly realizes three functions when this---de-carbon, decolouring and sterilization: water outlet COD and colourity up to standard emphasis realize sterilization, otherwise simultaneously ensure three water technology effects; According to the different ozone dosage 15-50mg/L of water quality; Ultraviolet device is set in ozone contact tank, ultraviolet device can be opened when water COD is too higher, carry out advanced oxidation process by the synergy of ultraviolet and ozone and produce hydroxyl radical free radical, improve the effect of Strong oxdiative and sterilization, ensure standard water discharge discharge; Ultraviolet device adds dosage 0.015-0.020kw/m
3/ h, the advanced oxidation treatment time is 10-30min.
Specific embodiment:
Handled sewage quality is water temperature 12-25 DEG C, COD=160-230mg/L, SS≤150mg/L, NH
3-N=10-20mg/L, TP=2.5-4.5mg/L, colourity 150-200 times, pH=7.0-8.5.
The concrete steps that the waste water water treatment method utilizing the embodiment of the present invention to provide processes above-mentioned water quality waste water are as follows:
(1) waste water is by entering the Fenton technological reaction pond of this system, the most COD in degrading waste water and TP after biochemical treatment;
(2) water outlet through pump promote enter the effect of high-performance bio carbon filter at microbial film and gac under remove the organism that a technique do not remove, reduce COD, colourity and the ammonia nitrogen in water further;
(3) last water outlet realizes sterilizing under the effect of UV/ozone, the strengthening removal function of decolouring and COD, realize discharged wastewater met the national standard.
Concrete technology parameter in above-mentioned treatment scheme with provide in aforesaid method identical, no longer repeat at this.
Detect the effluent quality after above-mentioned process, effluent quality is: handled sewage quality is water temperature 12-25 DEG C, COD < 60mg/L, SS < 20mg/L, NH
3-N < 8mg/L, TP < 1.0mg/L, colourity < 30 times, pH=7.0-8.5.
The above; be only the present invention's preferably embodiment, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (2)
1. a difficult degradation salt chemical engineering advanced waste treatment method, is characterized in that, comprise step:
First, waste water, by entering Fenton technological reaction pond after biochemical treatment, by the most of hardly degraded organic substance open loop chain rupture in waste water, and removes this organism further, and realize the object of part Biochemical raising, remove the phosphorus compound in waste water by coagulating sedimentation simultaneously;
Then, to promote through pump through water outlet and enter high-performance bio carbon filter, the organism do not removed under the effect of microbial film and gac, reduce COD, colourity and the ammonia nitrogen in water;
Finally, water outlet realizes sterilization, decolouring and reduces COD further under the effect of UV/ozone, realizes discharged wastewater met the national standard.
2. difficult degradation salt chemical engineering advanced waste treatment method according to claim 1, it is characterized in that, according to the changing conditions of water quality, when waste water difficult degradation composition increases, increase the dosage of Fenton reagent and add polyacrylamide coagulant aids, strengthening flocculation sediment effect;
When chroma in waste water increases and COD is higher, in Fenton technological reaction pond, add appropriate Powdered Activated Carbon, and increase ozone dosage and open ultraviolet, realize UV ozone combined action strengthening advanced oxidation function.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106746185A (en) * | 2016-12-02 | 2017-05-31 | 贵阳时代沃顿科技有限公司 | One kind prepares reverse osmosis membrane residual ammonia method for treating waste liquid and its device |
| CN107777837A (en) * | 2017-09-30 | 2018-03-09 | 安徽华星化工有限公司 | Pesticide chemical waste water treatment process |
| CN110272155A (en) * | 2019-07-10 | 2019-09-24 | 烟台优泰环保科技有限公司 | A kind of flaw detection colored wastewater processing method |
| CN112591999A (en) * | 2020-12-25 | 2021-04-02 | 山东建筑大学 | Method and system for synchronously removing organic matters and ammonia nitrogen in wastewater |
| CN113429045A (en) * | 2021-07-27 | 2021-09-24 | 福建省环境保护设计院有限公司 | Industrial wastewater advanced treatment and cyclic utilization method |
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| CN110272155A (en) * | 2019-07-10 | 2019-09-24 | 烟台优泰环保科技有限公司 | A kind of flaw detection colored wastewater processing method |
| CN112591999A (en) * | 2020-12-25 | 2021-04-02 | 山东建筑大学 | Method and system for synchronously removing organic matters and ammonia nitrogen in wastewater |
| CN113429045A (en) * | 2021-07-27 | 2021-09-24 | 福建省环境保护设计院有限公司 | Industrial wastewater advanced treatment and cyclic utilization method |
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