CN102921424B - Catalyst, LX catalytic oxidation method and antibiotic wastewater treatment method - Google Patents
Catalyst, LX catalytic oxidation method and antibiotic wastewater treatment method Download PDFInfo
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Abstract
The invention discloses a catalyst, an LX catalytic oxidation method and an antibiotic wastewater treatment method. Nickel, cobalt and silica are sintered in accordance with the proportion to form the catalyst. Hypochlorous acid or hypochlorite and the catalyst are added to organic wastewater, and the catalytic reaction is conducted. The wastewater of high concentration is subjected to pretreatment through a multidimensional electric catalytic oxidation method, the fungi residue filtrate is subjected to pretreatment through anaerobic digestion, the mixing liquid of the wastewater of high concentration and the fungi residue filtrate which are obtained in the above step is treated through the LX efficient catalytic oxidation method, and the comprehensive wastewater obtained in the above step is treated through a normal process. The catalyst, the LX catalytic oxidation method and the antibiotic wastewater treatment method have the advantages that under the action of the catalyst, organic matters and harmless matters such as NO2, CO2, H2O and N2, SO4<2-> which are formed through catalytic oxidation of toxicants and toxic elements which contain N, CN and S in the wastewater are discharged. By the aid of the method, the efficient in antibiotic wastewater treatment and in erythrocin wastewater treatment is high, and the cost and the operation cost are reduced greatly.
Description
Technical field
The invention belongs to chemical field, be specifically related to a kind of catalyst, use the chemical reaction of this catalyst and use the method for wastewater treatment of this reaction.
Background technology
Along with developing rapidly of medical industry in recent years, pharmacy waste water has become one of main source causing environmental pollution.Pharmaceuticals industry waste water mainly comprises four classes: the washings of antibiotic production wastewater, synthetic drug factory effluent, Chinese patent medicine production wastewater, all kinds of formulation manufacturing processes and flushing waste water.Because types of drugs is various, adopt plurality of raw materials in process of production, production technology is comparatively complicated, and therefore waste water composition is also very complicated, and its intractability is also comparatively large, and wherein the process of waste erythromycin producing water is particularly difficult.
Waste erythromycin producing water water quality characteristics is as follows: 1) COD concentration is high, generally at 50000 ~ 80000mg/L; 2) in waste water, SS concentration is high, generally at 500 ~ 25000mg/L, is wherein mainly the residual media matter of fermentation and the microorganism silk thalline of fermentation generation; 3) there is recalcitrant substance and have the toxicant such as antibiotic of bacteriostasis, aerobic sludge can be suppressed active, reduce treatment effect; 4) sulfate concentration is high; 5) water-quality constituents is complicated, mesostate, the surfactant industrial chemicals content such as high concentrated acid, alkali, organic solvent as residual in demulsifier, defomaing agent etc. and extraction and isolation is high, easily cause the fluctuation that pH value is larger, affect microorganism in anaerobic reactor active normally; 6) the little but intermittent discharge of the water yield, impact load is higher, brings great difficulty to biological treatment.
For the above feature of waste erythromycin producing water, current existing technology, especially biochemical technology is difficult to effectively process it.
After entering the high-concentration waste water of preliminary treatment and the mixing of bacterium slag filtrate, in composite waste, ammonia nitrogen mean concentration was at more than 1000mg/L, and its concentration has exceeded biochemical tolerance range.Therefore, select correct technique to remove ammonia nitrogen concentration in waste water, the inhibitory action eliminating ammonia nitrogen many subsequent biochemical system is the main purpose of this workshop section.
What the current removal of the materialization for ammonia nitrogen was conventional has the several methods such as break chlorine method, ammonia aeration method, ammonia still process method, ion-exchange and chemical precipitation method.Ammonia still process method is mainly used in the extra high wastewater treatment of ammonia nitrogen concentration.Ammonia aeration method requires that gas-water ratio reaches more than 2000:1, and the method is only be gas phase by the ammonia nitrogen in waste water from liquid-phase conversion, can cause secondary pollution, not tackle the problem at its root.Ion-exchange and chemical precipitation method all can bring new pollution sources to system, cause a new improvement difficult problem.
Therefore, selection break chlorine method removal ammonia nitrogen is the technique compared with reasonable.But break chlorine method may produce accessory substance chloramines and chlorinated organics.
The present invention is directed to the shortcoming that current existing sewage disposal technology exists antibiotic production wastewater especially waste erythromycin producing water process, experimental study is carried out to the treatment technology of antibiotic production wastewater especially waste erythromycin producing water and integrated artistic and Successful utilization in engineering project, solve a difficult problem for its sewage disposal.
Terminological interpretation:
B/C: refer to biodegradability, show as B/C>0.3 biochemical sewage performance still can, can Wastewater Treated by Activated Sludge Process be used, the more high more applicable Wastewater Treated by Activated Sludge Process sewage of B/C.
COD: COD, also known as chemical oxygen consumption (COC).
BOD5:BOD is that the dissolved oxygen content that a kind of microbial metabolism effect consumes carrys out secondary indication water body by an important indicator of BOD detecting instrument Organic Pollution degree.BOD is defined as, and under aerobic conditions, the quantity of the free oxygen that aerobic microbiological oxidation Decomposition unit volume Organic substance in water consumes, representation unit is the mg/litre (O2, mg/l) of oxygen.Microorganism is relevant with temperature to organic degraded, and general optimum temperature is 15 ~ 30 DEG C, so when measuring biochemical oxygen demand (BOD) generally using 20 DEG C as the normal temperature measured.Under sufficient at the condition determination of BOD and oxygen when 20 DEG C, not stirring condition, general organic matter can complete the oxidation decomposition course in the first stage for 20 days substantially, namely complete process 99%.In other words, measure the biochemical oxygen demand (BOD) of first stage, need 20 days, this is difficult to accomplish in real work.Specify a standard time again for this reason, generally using 5 days as the standard time measuring BOD, be thus referred to as five-day BOD, represent it with BOD5.BOD5 is about about 70% of BOD20.
SS: the suspension namely in water quality.In water quality, suspension refers to that water sample is that the membrane retention of 0.45 μm dries the solid matter to constant weight in 103 ~ 105 DEG C on filter membrane by aperture, is one of important indicator weighing water quality pollution level.
SCN-: Thiocyanate ion.
Shallow air-floatation: shallow air-floatation is a kind of major way of air-dissolving air-float.Its device integrates cohesion, air supporting, skimming, precipitates, scrapes mud.For the removal of proportion close to the small suspended particulate of water, shallow air-floatation is one of most effective method.
Hydrolysis acidification: hydrolysis refer to organic matter enter microbial cell before, the biochemical reaction that carries out outside born of the same parents.Microorganism completes biocatalytic reaction by the release outer free enzyme of born of the same parents or the immobilized enzyme be connected on mantle.Acidifying is the sweat of a quasi-representative, the metabolite mainly various organic acid of microorganism.
IC anaerobic technology: internal circulating anaerobic treatment technology.
A/O anoxic/aerobic: A/O method is the activated sludge process improved, and have denitrogenation dephosphorizing function, this technique is divided into two sections, front and back, i.e. leading portion anoxic section and back segment aerobic section.
High-level oxidation technology: high-level oxidation technology is also known as doing advanced oxidation processes, there is the hydroxyl radical free radical OH of Strong oxdiative ability for feature with generation, under the reaction conditions such as HTHP, electricity, sound, light irradiation, catalyst, large molecule hardly degraded organic substance is made to be oxidized to low toxicity or nontoxic small-molecule substance.According to the generation mode of free radical and the difference of reaction condition, photochemical oxidation, CWO, sonochemical oxidation, ozone oxidation, electrochemical oxidation, Fenton oxidation etc. can be divided into.
Biological Contact Oxidation Process: Biological Contact Oxidation Process is also known as " submerged bacteria filter ", " contact aeration process ", " attached activated sludge process ", it is a kind of sewage disposal technology started in early 1970s, its technical spirit is filling filler in biological reaction pool, the whole filler of sewage submergence of oxygenation, and flow through filler with certain flow velocity.Filler is covered with biomembrane, and sewage extensively contacts with biomembrane, on biomembrane microorganism metabolic effect under, dirty organic pollutants is removed, and sewage is purified.
LX catalytic oxidation technologies: i.e. new and effective catalytic oxidation, its principle is exactly under surface catalyst existent condition, utilize the organic pollution of strong oxidizer at normal temperatures and pressures in catalytic oxidation waste water, or direct oxidation organic pollution, or large molecular organic pollutants is oxidized to Small molecular organic pollution, improve the biodegradability of waste water, remove organic pollution preferably.In the process of degraded COD, interrupt the double bond chromophore in organic molecule, as azo group, nitro, sulfuration hydroxyl, carbon imino group etc., reach the object of decolouring, effectively improve BOD/COD value simultaneously, make it easy and biochemical degradation.Like this, strong oxidizer catalytic oxidation is in high concentration, and high toxicity, serves as the bridge between conventional materialized pretreatment and biochemical treatment in high salinity waste water.
Summary of the invention
Given this, the object of the invention is to provide a kind of effective catalyst, a kind of chemical method except ammonia nitrogen in antibiotic waste water, and a kind of low cost, high efficiency antibiotic waste water processing method.
For solving above technical problem, technical scheme provided by the invention is, first provides a kind of catalyst, and this catalyst is formed by proportioning sintering by nickel, cobalt and tripoli.
Preferably, the mass ratio of described nickel, cobalt and tripoli is 1 ~ 5:2 ~ 10:20 ~ 100.
More preferably, the mass ratio of described nickel, cobalt and tripoli is 1:2:40.
It is beneficial that: under the effect of this catalyst, oxidant is added in waste water, the material generating and there is superpower oxidisability can be reacted, thus cause and propagate radical chain reaction, accelerate the oxidation of organic matter and reducing substances, produce special catalysed oxidn, NO can be changed into by the organic matter in waste water and containing the Toxics such as N, CN, S or toxic element Catalytic Oxygen
2, CO
2, H
2o and N
2,
discharge Deng harmless object.
Present invention also offers a kind of LX catalysed oxidation processes, the method uses above-mentioned catalyst, adds hypochlorous acid or hypochlorite and above-mentioned catalyst in organic wastewater, produces catalytic reaction.
Preferably, described catalytic reaction is carried out in alkaline environment.
It is beneficial that: this catalysed oxidation processes can by the HN in organic wastewater
3be oxidized to N
2, accessory substance chloramines and chlorinated organics can not be produced.Overcome the weak point of traditional break chlorine method.NO can be changed into by the organic matter in waste water and containing the Toxics such as N, CN, S or toxic element Catalytic Oxygen
2, CO
2, H
2o and N
2,
discharge Deng harmless object.About 50% is improved than existing common oxidation technical efficiency.
Present invention also offers a kind of antibiotic waste water processing method, the method comprises the above-mentioned LX catalysed oxidation processes stated, and concrete treatment step is as follows:
Step 1) adopts multi-dimensional electro-catalytic oxidizing process to carry out pretreatment to high-concentration waste water, adopts anaerobic digestion to carry out pretreatment to bacterium slag filtrate;
Step 2) adopt above-mentioned LX efficiently catalyzing and oxidizing method treatment step 1) process the mixed liquor of the high-concentration waste water that obtains and bacterium slag filtrate;
The step 3) conveniently comprehensive wastewater that obtain of technique to step 3) processes.
Further, described common process comprises shallow air-floatation technology, hydrolysis acidification, IC anaerobic technology, A/O anoxic/aerobic technology, high-level oxidation technology and Biological Contact Oxidation Process.
It is beneficial that: first adopt high-level oxidation technologies such as " multi-dimensional electro-catalytic oxidation, LX catalytic oxidations " to carry out separation pretreatment to high-concentration waste water and bacterium slag waste water, the combination techniques such as rear employing " shallow air-floatation technology, hydrolysis acidification, IC anaerobic technology, A/O anoxic/aerobic technology, high-level oxidation technology and Biological Contact Oxidation Process " carry out integrated treatment to antiviral antibiotic especially erythromycin wastewater, make discharge standard reach industry first discharge standard.Especially erythromycin wastewater efficiency is high for this method process antibiotic waste water, and cost and operating cost significantly reduce.
Accompanying drawing explanation
Fig. 1 is the flow chart of antibiotic waste water processing method of the present invention.
Detailed description of the invention
Distinguish catalyst of the present invention and existing catalyst for convenience, below catalyst of the present invention is called catalyst C.
Embodiment 1
Catalyst C is formed by 1kg nickel, 2kg cobalt and 20kg silicate bond.
Embodiment 2
Catalyst C is formed by 1kg nickel, 2kg cobalt and 40kg silicate bond.
Embodiment 3
Catalyst C is formed by 5kg nickel, 10kg cobalt and 20kg silicate bond.
Embodiment 4
Will containing NH
3and the high concentrated organic wastewater in alkalescence pass into catalyst C is housed reactor in, meanwhile, add in reactor by NaClO and another bleaching powder, Strong oxdiative reduction reaction occurs, and reaction equation is as follows:
.This catalyst C is nickel, cobalt and tripoli form by proportioning sintering, and the mass ratio of nickel, cobalt and tripoli is in the scope of 1 ~ 5:2 ~ 10:20 ~ 100.
Embodiment 6
The present embodiment take erythromycin wastewater as handling object.
The concrete water quality situation of erythromycin wastewater is as follows:
1) high-concentration waste water
High-concentration waste water comprises erythromycin mother liquor, recycling design waste liquid and Recycling of waste liquid, and COD concentration is up to 800000mg/L, and colourity is dark.Contain a large amount of organic solvent in waste water as the organic matter to Antimicrobial effect such as methyl alcohol, diethylamine hydrochloride, rhodanate, sulphur red drop hydrolysis products, contain extremely toxic substance SCN-in such waste water, its mean concentration is up to more than 3500mg/L simultaneously.
2) bacterium slag filtrate
The dense water of fermentation liquor pretreatment workshop section bacterium slag is actual is that fermentation mixed liquor is through pretreated bacterium slag.Bacterium slag solid content 3%-4%, COD concentration is up to 20 ~ 300,000 mg/L, and containing a small amount of residual erythrocin fermentation mycelium, smell is smelly, is not to be suitable for directly entering sewage disposal system.Usually, bacterium slag should first through horizontal screw centrifuge be separated obtain moisture content be about 80% solid bacterium slag and solid content be 1% filtrate, COD concentration can be down to 50000mg/L.
3) dewater salt solution
Dehydration salt solution comes from the effluent brine extracting post, and COD is 20000mg/L, and colourity is dark, and salt content is up to tens0000.
4) low concentration wastewater
What low concentration wastewater derived from that zymotic fluid cultivates the workshop sections such as the cleaning of evaporator water of section and extraction washes film water and water-dialyzing, the fermentation residue that in waste water, pollution factor is mainly less and colloidal type suspension, and COD concentration is generally about 3000mg/L, suitable biochemical treatment.
For the feature of erythromycin wastewater, we work out treatment technology and technique according to following two basic principles:
A, shunting of removing contamination, separation are administered
The feature different according to the contaminated wastewater factor, first adopts different pretreatment mode process separately, after finally reaching a certain indication range, then mixed processing.
B, first materialization, rear biochemistry
In high-concentration waste water, SCN-is up to more than 3500mg/L, considerably beyond the biochemical system tolerance range of 100mg/L, directly cannot carry out biochemical treatment.Even with low concentration wastewater mixed processing, SCN-, also up to more than 400mg/L, seriously can suppress growth of microorganism equally, greatly reduces biochemical system treatment effeciency.In high-concentration waste water, residual erythrocin, erythromycin bacterium and biology enzyme can suppress or kill microorganism simultaneously.
In addition, high-concentration waste water COD is up to 80,000 mg/L, and so high pollutional load enters biochemical system and wants up to standard, and its capital expenditure and operating cost all military order enterprise cannot be born.Therefore the process of high-concentration waste water must consider the materialization technology first selecting economical and efficient, removes most SCN-and residual erythrocin, erythromycin bacterium and biology enzyme, then again with more economical biochemical technology process, and the stable operation of guarantee system like this.
And not containing SCN-in bacterium slag filtrate, therefore bacterium slag filtrate does not need through electrocatalytic oxidation metallization processes.In bacterium slag filtrate, major pollutants are the protein of Partial fermentation residue and a large amount of colloidal, starch, carbohydrate suspension and erythromycin bacterium filament, and COD is up to 50,000 mg/L.Therefore, bacterium slag filtrate first should enter biochemical system process through pretreatment ability ability equally.
Concrete treatment process as shown in Figure 1.As shown in Figure 1, in the present embodiment, the main handling procedure of waste water is as follows.
1, the technique of pretreatment of High Concentration Wastewater
Pretreatment for high-concentration waste water adopts multi-dimensional electro-catalytic oxidation and membrane separation process.And multi-dimensional electro-catalytic oxidizing process comparatively membrane separation process is in capital expenditure, operating cost, treatment effect has superiority.
Multi-dimensional electro-catalytic oxidation is the high-level oxidation technology advantage of light electrolysis and electro-catalysis two kinds of reactors united two into one, and is suitable for the organic wastewater of the high concentration of the conglomeraties such as chemical pharmaceutical, high chroma, high toxicity, high salinity, bio-refractory.Especially to the difficult for biological degradation such as benzene homologues class, halogenated hydrocarbon, multiring aromatic hydrocarbon, long chain alkane class, heterocyclic compound, total cyanogen, cyanide ion, thiocyanate ion, there is very good treatment effect to the pollutant of the toxic property of microorganism and inhibition.
Multi-dimensional electro-catalytic oxidation reaction is based on electrochemical techniques principle, and the Strong oxdiative particle hydroxyl radical free radical OH that hydrogen peroxide generates in electrolytic catalysis course of reaction, with the pollutant in waste water without selectively fast chain reaction occurring, carries out oxidative degradation.
The generative process of hydroxyl radical free radical:
.
Hydroxyl radical free radical is that only this is in the oxidizing species of fluorine for oxidisability, and it has the organic matter of inhibition simultaneously in oxidation to microorganism, also can be oxidized poisonous and harmful inorganic matter, as: cyanide, rhodanide, hydrogen sulfide etc., convert it into nontoxic material.
According to actual production test, before high concentration wastewater treatment, COD is 80000mg/L, SCN-is 3500mg/L.After multi-dimensional electro-catalytic oxidation, COD about 60000 mg/L, clearance is that more than 20%, SCN-is less than 700 mg/L, and clearance is greater than 80%.
2, bacterium slag filtrate pretreating process
Bacterium slag filtrate is that the dense water of fermentation liquor pretreatment obtains through horizontal screw centrifuge separation the waste water that solid content is 1%.Contain protein, starch, the carbohydrate suspension of Partial fermentation residue and a large amount of colloidal in bacterium slag filtrate, COD can up to 50,000 ~ 80,000 mg/L.
Because the feature that bacterium slag filtrate height COD, high suspended matter, waste water Middle nutrition are abundant, reach with waste water fall COD, the suspension thoroughly in liquefaction waste water so bacterium slag filtrate can carry out anaerobic digestion pretreatment.According to bacterium slag filtrate verification experimental verification, the cycle of bacterium slag filtrate anaerobic fermentation is 20 days, and after the anaerobic digestion of bacterium slag filtrate, water outlet COD can be down to about 15000mg/L, and in waste water, most suspended substances is all thoroughly liquefied.Therefore, need to design separately the most COD in bacterium slag filtrate anaerobic digestion pretreatment section abatement waste water and SS for bacterium slag filtrate, alleviate subsequent contamination load.
According to actual production test, before the process of bacterium slag filtrate, COD is 50000mg/L.After anaerobic fermentation, COD is 18000mg/L, and clearance is 64%.
3, high-concentration waste water mixes rear pretreating process with bacterium slag filtrate
High-concentration waste water and bacterium slag filtrate mix at this respectively through after respective independently pretreating process, and in composite waste, ammonia nitrogen mean concentration is up to more than 1000mg/L, and its concentration has exceeded biochemical tolerance range.Select LX catalytic oxidation technologies to remove ammonia nitrogen concentration in waste water, the inhibitory action eliminating ammonia nitrogen many subsequent biochemical system is the main purpose of this workshop section.
The course of reaction of LX catalytic oxidation technologies is: regulate the mixed liquor of high-concentration waste water and bacterium slag filtrate for alkaline, please passed into catalyst C is housed reactor in, NaClO and bleaching powder are added in reactor simultaneously.Under the effect of catalyst C, mixed liquor and NaClO and bleaching powder can react the material generating and have superpower oxidisability, thus cause and propagate radical chain reaction, accelerate the oxidation of organic matter and reducing substances, produce efficient catalysed oxidn, NO can be changed into by the organic matter in waste water and containing Toxic Catalytic Oxygen such as N, CN, S
2, CO
2, H
2o and N
2,
deng harmless object.
According to actual production test, before high-concentration waste water and the process of bacterium slag filtrate mixed liquor, COD is 40000 ~ 45000mg/L, NH
3-N is 1200mg/L.After LX catalytic oxidation, COD is about 35000mg/L, clearance about 10%; NH
3-N about 600 mg/L clearance about 50%.
4, comprehensive effluent disposal technology
High-concentration waste water and bacterium slag wastewater preprocessing process solve hazardous contaminant in waste water and, to microorganism killing and inhibitory action, also solve the inhibitory action of high ammonia nitrogen to microorganism simultaneously.Therefore, the technique of comprehensive wastewater conveniently and the actual combination of engineering application adopt waste water treatment technique---shallow air-floatation+hydrolysis acidification+IC anaerobism+A/O anoxic/aerobic+advanced oxidation+bio-contact oxidation.
The technique of the current comparative maturity of anaerobe technology has the techniques such as UASB anaerobism, ABR anaerobism, IC anaerobism, and wherein IC anaerobism is a kind of technique of economical and efficient the most at present.IC anaerobic technique has the unsurpassable advantages of other anaerobic techniques such as volumetric loading is high, capacity of resisting impact load is strong, operating cost is low, COD clearance is high, the startup cycle is short, and therefore IC anaerobic technique is first-selected.
The selection of Aerobic biological process technology is particularly important, low in conjunction with erythromycin wastewater carbon-nitrogen ratio, the water quality characteristics that ammonia nitrogen concentration is high, aerobicly selects A/O biological denitrification process.A/O biological denitrification process is the comprehensive of conventional activated sludge process, bio-digestion and anti-digestion process, and biological tank is divided into anoxic section, aerobic section by the layout of aerator, return flow channel.In this technological process, BOD5, SS and the nitrogen existed in a variety of manners will be removed one by one.In the activated sludge of A/O biological denitrification system, flora is primarily of nitrifier and denitrifying bacterium composition.At aerobic section, the ammonia nitrogen that the ammonia nitrogen in becoming a mandarin and organic nitrogen ammonification become by nitrobacteria, by biological nitration effect, changes into nitrate; In anoxic section, the nitrate that interior backflow is brought into by denitrifying bacteria, by biological denitrification, changes into nitrogen and escapes in air, thus reaches the object of denitrogenation.
Poor for the enterprise such as chemical industry, pharmacy factory effluent biodegradability, the extremely low and COD of one-level outputted aerobic water BOD only can process the present situation to 400 ~ 500mg/L, inventor takes the high-level oxidation technology after being suitable for biochemical treatment to process, namely in waste water, add hydrogen peroxide and ferrous sulfate, make to be difficult in waste water biochemical cyclic macromolecular or long-chain molecule moment is become biodegradable organic matter by open loop chain rupture.Through verification experimental verification, the A/O outputted aerobic water of thiocyanic acid waste water is after the oxidation of this technology, and B/C can be increased to about 0.4 by former water close to zero, then can be down to about 120mg/L through secondary Aerobic Process for Treatment water outlet COD.
Test according to actual production, comprehensive wastewater COD is 12000mg/L, after shallow air-floatation, COD is reduced to 10000mg/L, after hydrolysis acidification, COD is reduced to 7500mg/L, after IC anaerobic reaction, COD is reduced to 1500mg/L, after A/O is aerobic, COD is reduced to 500mg/L, and after advanced oxidation, COD is reduced to 300 ~ 350mg/L, and after bio-contact oxidation, COD is reduced to below 120mg/L.
Entered the erythromycin wastewater of this method process, discharge reaches industry first discharge standard.
Below be only the preferred embodiment of the present invention, it should be pointed out that above-mentioned preferred embodiment should not be considered as limitation of the present invention, protection scope of the present invention should be as the criterion with claim limited range.For those skilled in the art, without departing from the spirit and scope of the present invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. a catalyst, is characterized in that, this catalyst is formed by proportioning sintering by nickel, cobalt and tripoli; The mass ratio of described nickel, cobalt and tripoli is 1 ~ 5:2 ~ 10:20 ~ 100.
2. catalyst according to claim 1, is characterized in that, the mass ratio of described nickel, cobalt and tripoli is 1:2:40.
3. a LX catalysed oxidation processes, is characterized in that, uses catalyst described in claim 1 or 2, adds hypochlorous acid or hypochlorite and above-mentioned catalyst, produce catalytic reaction in organic wastewater.
4. LX catalysed oxidation processes according to claim 3, is characterized in that, described catalytic reaction is carried out in alkaline environment.
5. an antibiotic waste water processing method, is characterized in that, comprise LX catalysed oxidation processes according to claim 4, concrete treatment step is as follows:
Step 1) adopts multi-dimensional electro-catalytic oxidizing process to carry out pretreatment to high-concentration waste water, adopts anaerobic digestion to carry out pretreatment to bacterium slag filtrate;
Step 2) adopt above-mentioned LX catalytic oxidation treatment step 1) process the mixed liquor of the high-concentration waste water that obtains and bacterium slag filtrate;
Step 3) conveniently technique to step 2) the comprehensive wastewater obtained process;
Described common process comprises shallow air-floatation technology, hydrolysis acidification, IC anaerobic technology, A/O anoxic/aerobic technology, chemical high-level oxidation technology and biological catalytic oxidation.
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| CN105084442B (en) * | 2014-05-04 | 2017-06-09 | 中国科学院生态环境研究中心 | A kind of preprocess method for removing antibiotic in ferment antibiotics pharmacy waste water |
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| CN104529053B (en) * | 2014-11-28 | 2016-05-25 | 悦康药业集团安徽生物制药有限公司 | A kind for the treatment of process of high concentration pharmacy waste water |
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| CN102921424A (en) | 2013-02-13 |
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