CN102513108B - TiO2-carrying photoelectric catalyst for photoelectrocatalytic advanced treatment on sludge and method and device for TiO2-carrying photoelectric catalyst-based photoelectrocatalytic advanced treatment on sludge - Google Patents
TiO2-carrying photoelectric catalyst for photoelectrocatalytic advanced treatment on sludge and method and device for TiO2-carrying photoelectric catalyst-based photoelectrocatalytic advanced treatment on sludge Download PDFInfo
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Abstract
The invention discloses a TiO2-carrying photoelectric catalyst for photoelectrocatalytic advanced treatment on sludge, and a method and a device for TiO2-carrying photoelectric catalyst-based photoelectrocatalytic advanced treatment on sludge. The method provided by the invention comprises the following steps of 1, adding the TiO2-carrying photoelectric catalyst for photoelectrocatalytic advanced treatment on sludge into sludge, 2, carrying out irradiation by an ultraviolet ray generator located at an upper part of a reactor, and feeding high-energy electrons produced by an air-carried high-energy electron generator into the sludge by an aeration pipe located a lower part of the reactor, 3, adding a composite coagulation agent into the sludge obtained by the step 2 and carrying out flocculation, and 4, carrying out press filtration of the sludge by a pressure filter. The TiO2-carrying photoelectric catalyst, the device and the method provided by the invention solve the technical problem that the sludge normal-temperature treatment technology cannot remove water absorbed by organic matter-containing sludge, realize that the content of water in residual sludge is reduced to the content below 50% by a single step under the conditions of a normal temperature and normal pressure, realize sterilization, deodorization and solidification of toxic heavy metal ions simultaneously, and realize a large sludge decrement, a low treatment cost and good treatment effects. Sludge treated by the TiO2-carrying photoelectric catalyst, the method and the device reaches the latest standard published by the state environmental protection department and is convenient for follow-up recycling application.
Description
Technical field
The present invention relates to the field of sludge treatment of green technology, especially a kind of load TiO
2Catalyst, the apparatus and method of photoelectrocatalysis advanced treating mud.
Background technology
Municipal sludge is the residues such as offscum of the deposits such as the organic matter that produces in the sewage disposal process, microbial bacteria micelle and sewage surface flotation, wherein contains the toxic heavy metals such as a large amount of pathogens, parasite, pathogenic microorganisms, bioxin and arsenic, copper, mercury, chromium.Mud granule mainly exists with the form of the outer polymer (EPS) of born of the same parents, complicated component contains protein (protein), polysaccharide (polysaccarides), humus (humic-like substances), uronic acid (uronic acid), lipid (1ipid) and DNA etc. usually.Because the Water-In-Oil architectural characteristic of the outer polymer of mud granule born of the same parents causes the sewage plant sludge moisture content high, volume is large, brings difficulty for stacking and transportation etc.Municipal sludge as arbitrarily throwing aside hill farmland or landfill lack of standardization, will cause new potential threat as dealing with improperly or not the norm handles to ecological environment.Therefore, the mud that factory produces of further disposing of sewage is the great difficult problem of world today's field of Environment Protection.
China is because the Treatment of Sludge dynamics of investment is little for a long time, cause present domestic ﹠ Mud to be in serious hysteretic state, pursue wastewater treatment rate that have even unilaterally, simplify as much as possible even ignored the ﹠ Mud unit, with untreated wet mud arbitrarily transport outward, simple landfill or stacking, cause many big cities the phenomenon in mud besieged city to occur, and begun to spread to small and medium-sized cities, brought totally unfavorable impact to ecological environment.
Along with the acceleration of Urbanization in China, treatment rate of domestic sewage improves year by year, and sludge from wastewater treatment plant output sharply increases greater than 10% speed with annual growth.2010, national town sewage handling rate surpassed 50%, and treatment rate of domestic sewage surpasses 70%, and a year sewage load reaches 36,500,000,000 tons, and a year sludge yield reaches 2,740 ten thousand tons; By 2015, a year sewage treatment capacity reached 47,500,000,000 tons, and a year sludge yield reaches 3,560 ten thousand tons.Treatment of Sludge has become the major issue of puzzlement China's water treatment field and even environmental area.
China begins to pay close attention to the municipal sludge problem in recent years, and advanced foreign technology was also once attempted to imitate by departments at different levels, as: burning and heat energy utilization, aerobic-anaerobic digestion etc.Yet, although burning and heat energy utilization available energy, but the mud content of organic matter of the relative developed countries of domestic mud is low, therefore the energy self utilization rate is not as good as external, and equipment and operating cost are expensive, and still causing such as the inorganic matter (genus dangerous material) of the organic atmosphere pollution such as bioxin and residual about 1/3 left and right sides amount of solid needs further to dispose.Although aerobic-anaerobic digestion is comparatively extensive abroad.But domestic because: 1. the investment of anaerobic sludge digestion technical finesse mud is large, and the correlation engineering experience of China's Sludge Digestion is also few, and large-scale sludge digestion equipment is mostly from external import, and infrastructure investment and operating cost are high; 2. anaerobic sludge digestion is processed except needs investment substantial contribution and is built the slaking apparatus, also need drop into substantial contribution and build supporting treatment facility, and mud can only be to the quality of organic decrement about 1/3 to 1/2 in the mud after anaerobic digestion.From the whole industrial chain angle of sludge treatment, anaerobic digestion does not also reach the purpose of final disposal, and also can stay a large amount of excess sludges (residue) also needs to process by other technologies.The digestive juice COD concentration that produces is quite high, also need set up supporting sewage treatment facility or turn back to sewage treatment plant and process.This all needs a large amount of additional investments and operating cost; 3. the sand content of China's mud is higher, and the content of organic matter is lower than American-European countries, and the biodegradability of mud is poor, and the indexs such as the stability of digestion facility operation, biogas yield generally all do not reach external standard.So the digestion techniques of generally using abroad, operational effect is unsatisfactory in China; 4. anaerobic sludge digestion can produce a large amount of inflammable gases such as methane, and the fire-fighting safe class is required and the management expectancy height, and anaerobic sludge digestion facility periphery also needs to arrange the protection distance of hundreds of rice, and floor space is large.Therefore the sludge digestion technology still is difficult to promote at home.
At present the main method processed of China's municipal sludge has concentrated landfill, retting compost, a small amount of anhydration and incineration etc., wherein in land resource than more rich zone, concentrated landfill is the main method of ﹠ Mud.Yet, sewage plant sludge processes traditional handicraft because the outer polymer of the bag of breaking sludge effectively, so that mud micelle structure is inhaled Bao Shui and the cenobium cellular water is difficult to remove, moisture percentage in sewage sludge is still up to 78～83% after causing Sewage Plant to be processed, cost of transportation is high when causing Sludge landfill, landfill land seizure rate is huge, and very easily because of mud return molten, the secondary pollution that causes landfill such as ooze out, affect peripheral ecological environment.The moisture content of mud can't drop to below 60%, has limited direct landfill and the comprehensive utilization of resources of mud, and this is a technical bottleneck in the current ﹠ Mud.
Semiconductor ultra micro meter level TiO
2A kind of efficient photoelectricity treater catalyst, ultraviolet light induce with air-source current-carrying upper state electronic action under, TiO
2Electronics enters conduction band in the particulate, forms upper state excitation state e
*Make solid-liquid interface form the OH free radical, the symmetry of finishing the steric hindrance structure of being combined with organic micella mud adds the OH process, cracks the structure cell film of organic micella net-structured film and mushroom, make constitution water, the suction Bao Shui of Organic Sludge, the crystallization water becomes flowable Interstitial Water; Ultra micro meter level TiO
2Behind the absorption optical electronics, to Organic Sludge-SH ,-NH
2Etc. structure generation oxidation-reduction process, effectively form stench in the anti-locking system; Heavy metal ion changes avtive spot organic chelated in the nuclear into by the mud granule adsorption, makes that the toxic heavy metal ion is effectively solidified in the mud; Semiconductor ultra micro meter level TiO
2Under the photoelectric-synergetic effect, have very strong oxidability, have that energy consumption is low, simple to operate, reaction condition is gentle and the advantage such as non-secondary pollution, become in recent years day by day valued environmental pollution improvement new technology.
Summary of the invention
The applicant is in the above-mentioned existing ﹠ Mud, and moisture content can't drop to the technical bottleneck below 60%, and a kind of load TiO is provided
2Catalyst, the apparatus and method of photoelectrocatalysis advanced treating mud, thereby under the condition of normal temperature, usual pressure, one step of moisture in the excess sludge (excess activated sludge) can be reduced to below 50%, finish simultaneously sterilization, deodorizing, the curing of toxic heavy metal ion.Excess sludge refers to the activated sludge outside secondary sedimentation tank (or settling zone) discharge system in the activated Sludge System.
The technical solution adopted in the present invention is as follows:
A kind of load TiO
2Photoelectrocatalysis agent, in accordance with the following steps preparation:
(1) be that 1:0.5～1.4 adding semiconductor ultra micro meter level titanium dioxides also mix with the oxide of micron order transition metal by weight percentage;
(2) above-mentioned mixed-powder is carried out sintering under 600 ℃～1260 ℃, then carry out ball milling, washing, drying, dusting cover technique and prepare the core catalyst;
(3) according to percentage by weight the core catalyst of 0.5%～2 % and 98%～99.5% the dispersion stabilizer as carrier are mixed.
It is further characterized in that: described transition metal comprises Fe, Mn, Al, V.
The multicomponent that consists of in active carbon, diatomite, bentonite, perlite and the salt of dispersion stabilizer forms.
A kind ofly utilize above-mentioned catalyst to carry out load TiO
2The device of photoelectrocatalysis advanced treating mud, photoelectrocatalysis reactor center of top is provided with stirring motor, is provided with stirring vane on the output shaft of motor; Aerated conduit is arranged on reactor inside, is placed with aeration head at aerated conduit; Aerated conduit is connected with the outer carrier pipe road, and conveyance conduit sequentially is connected in series with air-source current-carrying high energy electron generator, compressed air reservoir and air compressor; Be furnished with many group ultraviolet generaters on the inner chamber top of reactor, the pond of making up a prescription is communicated with reactor with delivery pump by pipeline.
It is further characterized in that: described reactor top is provided with the electric charging mouth, and the solids raised machine feeds in raw material in reactor with the catalyst lifting and by charge door by the elevator track of reactor side.
The power of described ultraviolet generater is 3～6KW, and the power of described air-source current-carrying upper state electronics generator is 25KW～50KW, and the conveying bleed pressure is 2.2 * 105～4.8 * 105Pa, current-carrying upper state electrical air source amount 1200～5200L.
A kind of above-mentioned catalyst and device of utilizing carries out load TiO
2The method of photoelectrocatalysis advanced treating mud comprises following steps:
The first step: in mud, add load TiO
2The photoelectrocatalysis agent is fully stirred;
Second step: according to stirring mud 30～90 minutes in the reactor that do not coexist of the content of organic matter, adopt simultaneously the ultraviolet generater on reactor top to shine, adopt air-source current-carrying upper state electronics generator in mud, to import high energy electron by the aerating pipelines of reactor bottom;
The 3rd step: add compound coagulation agent and carried out flocculation reaction 5～10 minutes;
The 4th step: export the mud in the reactor to intermediate pool, and utilize filter press to carry out press filtration.
It is further characterized in that: described load TiO
2The interpolation percentage by weight of photoelectrocatalysis agent is over dry mud: supported catalyst=100:3.2 ~ 11.
According to load TiO claimed in claim 7
2The method of photoelectrocatalysis advanced treating mud is characterized in that: described compound coagulation agent is that 85～95% PAC and 5～15% CPAM form by percentage by weight, and adding percentage by weight is over dry mud: compound coagulation agent=100:0.8 ~ 1.5.
Beneficial effect of the present invention is as follows:
The present invention selects supported catalyst, can effectively reduce the resistance to mass tranfer of exist in the mud photoelectricity oxidizing process gas-solid, solid-liquid, improves oxidation effectiveness; Carrier has good absorption property, neutralization precipitation and filtration crown_interception, and wide material sources, and is cheap, can save processing cost.
The present invention only need to carry out common press filtration behind the catalytic reaction coagulation, do not need the pressurization press filtration that energy consumption is very high, wearing and tearing are very large, moisture percentage in sewage sludge can be down to below 50% after processing, it is low to contain the bacterium index, Stability Analysis of Structures, indices all satisfies the GB/T23485-2009 requirement, can be used as refuse landfill overburden soil shale.Organic matter is all 35%～65% in the domestic mud butt, and corresponding fuel value is at 1800～3600 kilocalories, so the dewatered sludge of the present invention after processing also can be used as thermal power plant or cement plant, brick field replacement of fuel thing, is with a wide range of applications.
The present invention has broken through can't remove in the normal temperature lignin-sludge technique and has contained the technical bottleneck that Organic Sludge is inhaled Bao Shui, has reached that mud decrement is large, processing cost is low, effective, lignin-sludge reaches national environmental protection section newest standards, is convenient to follow-up resource and uses.
Generally use CaO in the existing sludge drying processing procedure, because CaO is converted into Ca (OH) in sludge handling process
2, the mud alkalize after the processing; If with mud as the medium and low heat value fuel recycling, Ca (OH)
2Decomposable process is endothermic process, so that the calorific value of mud is subject to loss to a certain degree, is unfavorable for the utilization of resources.The present invention does not use CaO in processing procedure, not only saved operating cost, the more important thing is the calorific value that has kept mud.And the moisture percentage in sewage sludge after the present invention processes is below 50%, compare with respect to moisture content about 80% of the prior art, calorific value is improved significantly, and the mud after the processing can be directly used in the medium and low heat value fuel substitute that can be used for brick field, cement plant, firepower electrical plant.Mud conforms with in [2010] No. 157 files of Chinese Ministry of Environmental Protection the requirement of " sewage treatment plant transports factory circle with mud to store (namely not processing disposal) as purpose; must be with sludge dewatering to moisture content below 50% " after the processing of moisture content below 50%, makes things convenient for better the utilization of resources.
Photoelectrocatalysis reaction of the present invention is zero-order reaction, and not temperature influence, thereby applicability is very wide, not only can be applied in the torrid areas, temperate zone, and refrigerant latitudes also can generally be used.This is because photoelectricity causes TiO
2The catalytic active center interface consists of the impact that the netted rupture of membranes reaction of OH radical pair Organic Sludge micella is not subjected to environment temperature: this reaction energy from ultraviolet light to micron order TiO
2Activated centre valence electron transition forms the OH free radical at solid-liquid interface; Air-source current-carrying upper state electron stream constantly excites catalytic active center micron order TiO simultaneously
2The cyclic process of interface formation OH free radical.The activation energy of the rupture of membranes reaction that OH free radical and Organic Sludge micella are netted is zero; Its energy stems from photoelectricity and causes catalytic process, and the reaction time is not subjected to the impact of environment temperature.
Description of drawings
Fig. 1 is treating apparatus schematic diagram of the present invention.
Fig. 2 is the process chart of processing method of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
Load TiO of the present invention
2The photoelectrocatalysis agent prepares in accordance with the following steps:
(1) in 1:0.5～1.4(weight ratio) ratio adds the oxide of semiconductor ultra micro meter level titanium dioxide and micron order transition metal, and described transition metal comprises Fe, Mn, Al, V etc., its oxide such as Fe
2O
3, MnO
2, Al
2O
3, V
2O
5Deng;
(2) above-mentioned mixed-powder is carried out sintering under 600 ℃～1260 ℃, then carry out ball milling, washing, drying, again ball milling, dusting cover, prepare the core catalyst;
(3) according to percentage by weight the core catalyst of 0.5%～2 % and 98%～99.5% dispersion stabilizer (as carrier) are mixed, the multicomponents such as active carbon, diatomite, bentonite, perlite and salt that consist of of described dispersion stabilizer form.
As shown in Figure 1, load TiO of the present invention
2The main body of the device of photoelectrocatalysis advanced treating mud is photoelectrocatalysis reactor 1, and reactor 1 center of top is provided with stirring motor 14, is provided with multiple layers of stirring blades sheet 16 on the output shaft of motor 14; Reactor 1 top is provided with electric charging mouth 12, and solids raised machine 11 promotes catalyst and pours in the reactor 1 by charge door by the elevator track 10 of reactor 1 side; Reactor 1 tip designs mud entrance 21 adopts gong bar pump to add mud from the excess sludge pond to reactor 1.Aerated conduit 17 is arranged on the bottom and periphery of reactor 1, is placed with diamond dust around aeration head 18 at aerated conduit 17; Be furnished with many group ultraviolet generaters 15 on the inner chamber top of reactor 1, the top of reactor 1 also is provided with tail-gas analyzer 13; Be provided with sludge out pipe 19 in the bottom of reactor 1, adopt the potential difference method to enter intermediate pool; At two battery tapping valves of 0.70 ~ 0.85 times of At The Height design of reaction tank, 20 row's supernatants.Aerated conduit 17 is connected with outside stainless steel conveyance conduit 2, and conveyance conduit 2 orders are connected in series with air-source current-carrying upper state electronics 3, compressed air reservoir 4 and air compressor 5; Make up a prescription pond 6, the pond 7 of making up a prescription by 8 inputs of pipeline and miniature liquid delivery pump to reactor 1 interior input medicament.Air-source current-carrying upper state electronics 3 is the commercial goods.
As shown in Figure 2, load TiO of the present invention
2The method of photoelectrocatalysis advanced treating mud mainly comprises following steps:
The first step: in mud, add load TiO
2The photoelectrocatalysis agent is fully stirred, and adds the ratio of supported catalyst 320g～1100g according to every cubic metre of moisture 99.0% excess sludge, i.e. the over dry mud of the content of organic matter per ton about 35%～60%, and the interpolation supported catalyst is 32kg～110kg.
Second step: under the effect of the ultraviolet light in reactor, import air-source current-carrying high energy electron, finish the cyclic process to the reaction of the photoelectrocatalysis of organic micella mud oxidation rupture of membranes, make organic matter and mushroom in the mud constitution water, inhale Bao Shui, the crystallization water becomes flowable Interstitial Water.The present invention adopts catalyst TiO
2With the carrier special construction, concentration and the content of organic matter according to mud can be regulated catalyst amount and concerted catalysis time, under the high energy electron synergy of ultraviolet light and air-source current-carrying, in reaction tank, produce upper state OH free radical, Organic Sludge is under upper state OH Free Radical, cause interface s-g, s-l microelectronics transfering system that mass transfer body TiOM makes up energy state and Orbital Symmetry, cracked sludge bacteria micelle structure, the netted structural membrane of Organic Sludge living beings is cracked, discharge structure cell water, inhale Bao Shui and constitution water.The power of ultraviolet generater is 3～6KW, working time 42～80min, and the power of air-source current-carrying upper state electronics generator is 25KW～50KW, carrying bleed pressure is 2.2 * 10
5～4.8 * 10
5Pa, current-carrying upper state electrical air source amount 1200～5200L.
The 3rd step: add compound coagulation agent, the over dry mud of the content of organic matter per ton about 35%～60% adds compound coagulation agent and is: 8kg～15kg.Described compound coagulation agent is by 85～95%(percentage by weight) PAC (Polyaluminium Chloride) form with 5～15% PAM (Polyacrylamide), under coagulation agent effect, Organic Sludge particle isoelectric state coagulation through rupture of membranes, toxic heavy metal ion chelating coagulation is realized the quick separation of muddy water.
The 4th step: the supernatant in the reactor is entered the works liquor system, mud enters intermediate pool after the reaction, be promoted to diaphragm filter press through screw pump, under usual pressure, realize the quick separation of muddy water, can obtain the mud of moisture content below 50% after the common press filtration.
Embodiment 1:
Be that 15100mg/L, the content of organic matter are that 32% excess sludge imports reactor with concentration, import volume is 94.3m
3, then in reactor, add load TiO
2Photoelectrocatalysis agent (being configured according to core catalyst 0.75kg and carrier 74.05 kg), after stirring 5min, the mud of opening in 15 pairs of reactors of ultraviolet generater shines, import high energy electron by high energy electron generator 3 via aerating pipelines simultaneously and react, react while stirring 50min.Then add compound coagulation agent (PAC14.0kg, PAM1.89kg) by the pond of making up a prescription, behind the 5min supernatant in the reactor is entered the works liquor system, mud discharging is arrived intermediate pool, be promoted to diaphragm filter press through screw pump, by common press filtration, obtain moisture content and be 47.80% mud.
Embodiment 2:
Be that 14800mg/L, the content of organic matter are that 35% excess sludge imports reactor with concentration, import volume is 95.6m
3, then in reactor, add load TiO
2Photoelectrocatalysis agent (being configured according to core catalyst 0.98kg and carrier 64.02 kg), after stirring 5min, the mud of opening in 15 pairs of reactors of ultraviolet generater shines, import high energy electron by high energy electron generator 3 via aerating pipelines simultaneously and react, react while stirring 60min.Then add compound coagulation agent (PAC16.00kg, PAM1.89kg) by the pond of making up a prescription, behind the 5min supernatant in the reactor is entered the works liquor system, mud discharging is arrived intermediate pool, be promoted to diaphragm filter press through screw pump, by common press filtration, obtain moisture content and be 48.20% mud.
Embodiment 3:
Be that 16560mg/L, the content of organic matter are that 20% excess sludge imports reactor with concentration, import volume is 96.8m
3, then in reactor, add load TiO
2Photoelectrocatalysis agent (being configured according to core catalyst 0.26kg and carrier 51.54 kg), after stirring 5min, the mud of opening in 15 pairs of reactors of ultraviolet generater shines, import high energy electron by high energy electron generator 3 via aerating pipelines simultaneously and react, react while stirring 30min.Then add compound coagulation agent (PAC16.86kg, PAM2.18kg) by the pond of making up a prescription, behind the 5min supernatant in the reactor is entered the works liquor system, mud discharging is arrived intermediate pool, be promoted to diaphragm filter press through screw pump, by common press filtration, obtain moisture content and be 48.30% mud.
Embodiment 4:
Be that 25120mg/L, the content of organic matter are that 65% paper mill mud imports reactor with concentration, import volume is 65.0m
3, then in reactor, add load TiO
2Photoelectrocatalysis agent (being configured according to core catalyst 3.27kg and carrier 160.2 kg), after stirring 5min, the mud of opening in 15 pairs of reactors of ultraviolet generater shines, import high energy electron by high energy electron generator 3 via aerating pipelines simultaneously and react, react while stirring 90min.Then add compound coagulation agent (PAC16.62kg, PAM2.39kg) by the pond of making up a prescription, behind the 5min supernatant in the reactor is entered the works liquor system, mud discharging is arrived intermediate pool, be promoted to diaphragm filter press through screw pump, by common press filtration, obtain moisture content and be 47.90% mud.
Mud and filtrate after embodiment 1～4 processing are measured, and the mean value that gets indices is as shown in table 1.Load TiO
2Photoelectrocatalysis advanced treating mud has clear superiority than the traditional sludge processing method, and partial data sees Table 2,3 Data Comparison tables.
Mud after table 1 is processed and the technical indicator of filtrate
Table 2 filtrate monitoring result
Mud monitoring result after table 3 is processed
Claims (6)
1. one kind is utilized load TiO
2The device of advanced treating mud is carried out in the photoelectrocatalysis agent, described load TiO
2The photoelectrocatalysis agent prepares in accordance with the following steps: (I) also mix with the oxide of micron order transition metal for 1:0.5～1.4 add semiconductor ultra micro meter level titanium dioxide by weight percentage; (II) above-mentioned mixed-powder is carried out sintering under 600 ℃～1260 ℃, then carry out ball milling, washing, drying, dusting cover technique and prepare the core catalyst; (III) according to percentage by weight the core catalyst of 0.5%～2 % and 98%～99.5% the dispersion stabilizer as carrier are mixed; It is characterized in that: photoelectrocatalysis reactor (1) center of top is provided with stirring motor (14), is provided with stirring vane (16) on the output shaft of motor (14); Aerated conduit (17) is arranged on reactor (1) inside, is placed with aeration head (18) at aerated conduit (17); Aerated conduit (17) is connected with outer carrier pipe road (2), and conveyance conduit (2) order is connected in series with air-source current-carrying high energy electron generator (3), compressed air reservoir (4) and air compressor (5); Be furnished with many group ultraviolet generaters (15) on the inner chamber top of reactor (1), the pond of making up a prescription is communicated with reactor (1) by pipeline, delivery pump (8).
2. according to load TiO claimed in claim 1
2The device of photoelectrocatalysis advanced treating mud, it is characterized in that: described reactor (1) top is provided with electric charging mouth (12), and solids raised machine (11) feeds in raw material in reactor (1) with the catalyst lifting and by charge door by the elevator track (10) of reactor (1) side.
3. according to load TiO claimed in claim 1
2The device of photoelectrocatalysis advanced treating mud is characterized in that: the power of described ultraviolet generater (15) is 3～6KW, and the power of described air-source current-carrying upper state electronics generator (3) is 25KW～50KW, and carrying bleed pressure is 2.2 * 10
5～4.8 * 10
5Pa, current-carrying upper state electrical air source amount 1200～5200L.
4. one kind is utilized device claimed in claim 1, carries out load TiO
2The method of photoelectrocatalysis advanced treating mud is characterized in that comprising following steps:
The first step: in mud, add load TiO
2The photoelectrocatalysis agent is fully stirred;
Second step: according to stirring mud 30～90 minutes in the reactor that do not coexist of the content of organic matter, adopt simultaneously the ultraviolet generater on reactor top to shine, adopt air-source current-carrying upper state electronics generator in mud, to import high energy electron by the aerating pipelines of reactor bottom;
The 3rd step: add compound coagulation agent and carried out flocculation reaction 5～10 minutes;
The 4th step: export the mud in the reactor to intermediate pool, and utilize filter press to carry out press filtration.
5. according to load TiO claimed in claim 4
2The method of photoelectrocatalysis advanced treating mud is characterized in that: described load TiO
2The interpolation percentage by weight of photoelectrocatalysis agent is over dry mud: supported catalyst=100:3.2～11.
6. according to load TiO claimed in claim 4
2The method of photoelectrocatalysis advanced treating mud is characterized in that: described compound coagulation agent is that 85～95% PAC and 5～15% PAM form by percentage by weight, and adding percentage by weight is over dry mud: compound coagulation agent=100:0.8～1.5.
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| CN102976583A (en) * | 2012-12-28 | 2013-03-20 | 江苏兆盛环保集团有限公司 | Deep dehydration treatment method for sludge of river courses and enclosed lakes |
| CN103028407A (en) * | 2012-12-28 | 2013-04-10 | 江苏兆盛环保集团有限公司 | Core TiO2 photoelectric catalyst for advanced sludge treatment and preparation method of catalyst |
| CN106007314B (en) * | 2016-07-04 | 2019-01-22 | 柳州若思纳米材料科技有限公司 | A kind of method and apparatus that optically catalytic TiO 2 repairs bottom mud in lake |
| CN106882914B (en) * | 2017-03-02 | 2021-04-06 | 南京航空航天大学 | Method for improving dehydration performance of excess sludge of municipal sewage treatment plant |
| CN106977069A (en) * | 2017-04-18 | 2017-07-25 | 江苏明轩环保科技有限公司 | A kind of continuous high pressure deep dehydration system for sludge |
| CN111977930B (en) * | 2020-08-13 | 2022-12-13 | 长治市博奇环保科技有限公司 | Ozone oxidation and photocatalytic magnetic field enhanced sludge treatment method |
| CN113413901B (en) * | 2021-06-22 | 2023-10-03 | 大连海事大学 | Preparation method of recyclable visible light catalyst and application of recyclable visible light catalyst in excess sludge |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1438913A (en) * | 2000-06-10 | 2003-08-27 | 清风株式会社 | Method and apparatus for removing pollutants using photoelectro catalytic system |
| CN101265070A (en) * | 2008-04-17 | 2008-09-17 | 高康 | Sludge solidifying agent and application thereof |
| CN202449969U (en) * | 2011-12-07 | 2012-09-26 | 江苏兆盛环保集团有限公司 | Device for deeply treating sludge through photoelectrocatalysis of load TiO2 |
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| CN1438913A (en) * | 2000-06-10 | 2003-08-27 | 清风株式会社 | Method and apparatus for removing pollutants using photoelectro catalytic system |
| CN101265070A (en) * | 2008-04-17 | 2008-09-17 | 高康 | Sludge solidifying agent and application thereof |
| CN202449969U (en) * | 2011-12-07 | 2012-09-26 | 江苏兆盛环保集团有限公司 | Device for deeply treating sludge through photoelectrocatalysis of load TiO2 |
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