CN107601780B - A method of utilizing laser treatment ammonia nitrogen in sewage organic matter - Google Patents

A method of utilizing laser treatment ammonia nitrogen in sewage organic matter Download PDF

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CN107601780B
CN107601780B CN201711032978.6A CN201711032978A CN107601780B CN 107601780 B CN107601780 B CN 107601780B CN 201711032978 A CN201711032978 A CN 201711032978A CN 107601780 B CN107601780 B CN 107601780B
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sewage
ammonia nitrogen
water
laser
soil
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CN107601780A (en
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陈庆
司文彬
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Dongying wisdom water environment protection science and Technology Co., Ltd.
Shandong Shujie biological Polytron Technologies Inc
Tian Zheng Jun yuan Environmental Protection Technology Co., Ltd.
China University of Petroleum UPC East China
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Dongying Wisdom Water Environment Protection Science And Technology Co Ltd
Shandong Shujie Biological Polytron Technologies Inc
Tian Zheng Jun Yuan Environmental Protection Technology Co Ltd
China University of Petroleum UPC East China
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Abstract

The invention belongs to the technical fields of sewage disposal, provide a kind of method using laser treatment ammonia nitrogen in sewage organic matter.This method is by sewage after precipitation, Anaerobic Treatment, it puts into and removes organic pollution and phosphor contaminant in soil filtration treatment trough, obtain the water rich in ammonia nitrogen pollutant, then the photochemical catalyst catalytic degradation being attached in light reaction pipe on sorbing material, and chemical bond rupture is promoted using the high-energy of laser, to remove the ammonia nitrogen pollutant in water, the processing to sewage is completed.Compared with conventional method, the processing method of the present invention, organic pollution, phosphor contaminant and the ammonia nitrogen pollutant in decontaminated water can effectively be removed, whole process laser irradiation controllability is strong simultaneously, can recycle, and treatment effeciency is high, high treating effect, and easy to operate, cost is relatively low, can be used for large-scale promotion application.

Description

A method of utilizing laser treatment ammonia nitrogen in sewage organic matter
Technical field
The invention belongs to the technical field of sewage disposal, provide a kind of using laser treatment ammonia nitrogen in sewage organic matter Method.
Background technology
Water is origin of life, and water is the basis that all life are depended on for existence on the earth.With the development of industry, population Increase, the increase of the aggravation of urbanization and chemical fertilizer, Pesticide use amount, the water as Source of life has received serious dirt Dye.Water pollution refers to pollutant and enters in river, lake, ocean or underground water, makes physics, chemical property or the life of water quality and bed mud Object group composition changes, and causes water quality deterioration, reduces the use value and function of water body, be detrimental to health or destroy The phenomenon that ecological environment.
The reason of causing water pollution has two natural and artificial aspect factors, we are general, and described water pollution refers to people Include mainly sanitary sewage, industrial wastewater, hospital sewage, the runoff of farmland water and infiltration, the stacking of solid waste for pollution Water pollution caused by burial etc..Various countries' water crisis getting worse as caused by water pollution at this stage, it is not only to agricultural, fishing Industry, industry are harmful, have also seriously threatened the health of the mankind, have constrained the economic development of various countries, especially send out in recent years Raw water contamination accident is startling.Therefore, treasure simultaneously water conservation, reinforce water pollution control and take precautions against, compeled in eyebrow Eyelash.
In Different Waters pollutant, ammonia nitrogen is present in many industrial wastewaters, and a large amount of discharges of ammonia nitrogen not only cause Phenomena such as red tide occurs for water environment pollution and body eutrophication and water body, and made in Industrial Wastewater Treatment and reuse project At microbial reproduction in water equipment, biofouling is formed, pipeline and water equipment is blocked, influences heat exchange.Largely contain ammonia nitrogen Sewage be discharged into rivers, lake, cause the eutrophication of natural water, while bringing to life and the processing of industrial water larger Difficulty.The NH_3-N treating practicability preferably country is with most technologies at present:Biological denitrificaion method, ammonia aeration vaporizing extract process, folding Point chloridising, chemical precipitation method, ion-exchange, liquid-film method, soil irrigation method etc..
In the treatment technology of ammonia-nitrogen sewage, Biochemical method ammonia-nitrogen sewage is relatively stablized, nitrogen removal rate up to 70%~ 95%, treatment effeciency is higher, is at present both at home and abroad with a kind of most methods.Ammonia aeration method, technical maturity, stripping is efficient, It is stable, but power consumption is big, the easy fouling of tower wall, and efficiency can reduce during the cold season;Chemical precipitation method is simple for process, efficiency Height, but it is big to add pharmaceutical quantities;Membrane absorption method, higher ammonia nitrogen and salt amount can effectively inhibit the osmotic distillation flux of water, occur one Determine leakage problems;For the processing of comparison of ingredients simple ammonia nitrogen waste water, in physical-chemical process, blow-off method and membrane absorption method are ratios More economical effective selection;If sewage composition is relative complex, for example oiliness pollutant load is higher, then need advanced promoting the circulation of qi floating etc. Pretreatment.For high-concentration ammonia nitrogenous wastewater, to ensure standard water discharge discharge, replaced using physico-chemical process and bioanalysis process integration single One technique is thoroughly to remove ammonia nitrogen in waste water.
Ammonia-nitrogen sewage processing both at home and abroad has achieved certain effect at present.Wherein once a kind of depth is illustrated in sub- equality human hair The method for managing ammonia-nitrogen sewage(Chinese invention patent application number 200710066334.9), in traditional ammonia nitrogen sewage processing method On the basis of carry out that innovation is integrated, three kinds of processing methods of physics, chemistry and biology are used in combination, i.e.,:With improved anaerobism, good Oxygen technique, and UF membrane and biologic treating technique handle the ammonia-nitrogen sewage of low BOD5, ammonia-nitrogen sewage qualified discharge or are returned after processing With, but this method is bad to the more complicated ammonia-nitrogen sewage treatment effect of ingredient, and there are the leakage problems of certain liquid film.Separately Outside, Lin Jiamei et al. has invented a kind of processing method of distributed high-ammonia-nitrogen sewage(Chinese invention patent application number 201510257240.4), flowing reactive will be carried out in sewage collecting to regulating reservoir and anaerobic reation pool first, it is then that anoxic is anti- It answers pond water outlet to be input in aeration aerobic tank and carries out aeration aerobic reaction, initial operating stage disposably adds in being aerated aerobic reaction tank Enter diatomite, then aeration aerobic tank water outlet is input to after artificial swamp, it is further processed using plant, last son The water outlet of artificial swamp is drained into natural stream networks, but this method nitrification is not thorough enough, and ammonia and nitrogen organic is caused to handle Imitate bad, whole process is complex.
As it can be seen that less efficient conventional processing technique, high energy consumption, ammonia nitrogen pollutant treatment effect exists in the prior art not It is good, in the traditional biological denitrogenation being most widely used at present nitrobacteria growth compared with cause slowly nitrification removal ammonia nitrogen index it is relatively low, Method temporarily without ripe laser treatment ammonia-nitrogen sewage simultaneously.
Invention content
The object of the present invention is to provide a kind of method using laser treatment ammonia nitrogen in sewage organic matter, this method is by sewage It after precipitation, Anaerobic Treatment, puts into and removes organic pollution and phosphor contaminant in soil filtration treatment trough, obtain dirty rich in ammonia nitrogen The water of object, the photochemical catalyst catalytic degradation being then attached in light reaction pipe on sorbing material are contaminated, and uses the height of laser Energy for promoting theory of evolution key is broken, and to remove the ammonia nitrogen pollutant in water, completes the processing to sewage, it is useless can to solve general ammonia nitrogen The problems such as water technology is less efficient, high energy consumption, bad ammonia nitrogen pollutant treatment effect, the biography being especially most widely used Nitrobacteria growth is compared with the problem for causing nitrification removal ammonia nitrogen index relatively low slowly in system biological denitrificaion.
Specific technical solution of the present invention is as follows:
A method of using laser treatment ammonia nitrogen in sewage organic matter, by sewage after precipitation, Anaerobic Treatment, input soil Organic pollution and phosphor contaminant are removed in earth filtration process slot, the water rich in ammonia nitrogen pollutant are obtained, then in light reaction pipe In be attached to photochemical catalyst catalytic degradation on sorbing material, and chemical bond rupture is promoted using the high-energy of laser, to remove The ammonia nitrogen pollutant in water is removed, the processing to sewage is completed, sewage disposal is as follows:
(1)First sewage is introduced into pretreatment system, after precipitation and Anaerobic Treatment, with certain water under artificial control Power load equably launches it in soil filtration treatment trough, and sewage is percolated downwards by aeration soil, slowly to surrounding Soil infiltration, diafiltration and diffusion, under the collective effect of adsorption by soil, microbial action and ecological effect, retain, convert, Degradation is recycled water except the organic pollution and phosphor contaminant in decontaminated water, by underground collecting conduit, obtains being rich in ammonia nitrogen The water of pollutant;
(2)Using the light reaction pipe for being provided with sorbing material, adhere to photochemical catalyst on the adsorbent material, and in reaction tube Laser emitter and the combination of anti-diaphotoscope are set, by step(1)The water rich in ammonia nitrogen collected is passed through in light reaction pipe, in water On the one hand ammonia nitrogen pollutant is adsorbed by sorbing material, degradation reaction occurs under the action of photochemical catalyst, is on the other hand being swashed Under the high-energy concentration effect of light, chemical bond is broken, and further speeds up its degradation, while in the effect of anti-diaphotoscope combination Under, the utilization ratio of laser improves so that the ammonia nitrogen pollutant in water is removed more thorough.
Wherein, step(1)The sewage refers to sanitary sewage or business sewage, and sanitary sewage includes house, office building, machine Sewage, hygienic sewage, the effluent sewerage etc. closed etc., business sewage include sewage from catering business, sewage of wash house, animal feeding dirt The sewage etc. that water, hairdressing place generate.
Preferably, step(1)It is to be higher by the water surface that the precipitation process, which uses rectangular sedimentation tank, the height for the baffle that becomes a mandarin, 0.1~0.15m, submergence is 0.5~1m, away from 0.5~1m of water inlet.
Preferably, step(1)The Anaerobic Treatment use two-stage series connection digester, the first order be high speed digester, second Grade is traditional digester, and processing time ratio is 1:1~1:4.
Preferably, step(1)The pipeline of the soil filtration treatment trough is laid in 2 layers, i.e. sparge pipe and collector pipe;It is described The caliber of sparge pipe is 100~120mm, and buried depth is 0.4~0.6m;The caliber of the collector pipe is 150~170mm, buried depth 2 ~2.1m.
Preferably, step(1)The volume loading rate of the soil filtration treatment trough is 0.03~0.04m3/m2D, volume are negative Lotus is 0.02~0.03m3/m3D, the net depth of bed body are 1.5~1.6m.
Preferably, step(1)The groove body of the soil filtration treatment trough uses composite anti-penetrating geo-membrane material, bed body backfill From bottom to top it is followed successively by:8~12cm of sand filter blanket, 130~140cm of artificial soil horizon, 30~40cm of backfill planting soil layer.
Preferably, step(2)The sorbing material be polyacrylamide, silica gel, aluminium oxide, activated carbon or zeolite in extremely Few one kind.
Preferably, step(2)The photochemical catalyst is in titanium dioxide, zirconium dioxide, zinc oxide, tin oxide or cadmium sulfide At least one.
Preferably, step(2)The laser emitter is Solid State Laser transmitter, liquid laser transmitter, gas laser Transmitter or semiconductor laser transmitter, it is 4.5~6.5 × 10 to generate laser frequency14Hz。
Sedimentation basin is usually the structures that mud-water separation is used for before biochemical reaction or after biochemical reaction, especially separation The thinner sludge of grain.After sedimentation basin, the thinner inorganic sludge of particle and organic sludge are removed.In digester, detest Oxygen animalcule is possible to carry out degradation or Partial digestion to some organic matters that aerobic microbiological cannot degrade.Therefore, to Mr. Yu Waste water containing hardly degraded organic substance a bit, better treatment effect, Huo Zheti can be obtained by carrying out pretreatment using anaerobic technique The biodegradability of high sewage improves the treatment effect of follow-up aerobic treatment process.
Soil filtration processing is a kind of sewage disposal technology on the spot, will be through using ecological principle and environment project Crossing pretreated sewage input has in certain construction and the good soil layer of diffusion, in the work of hollow billet infiltration and soil filtration It is right by adsorption by soil, microbial biochemical effect and ecological effect slowly to surrounding soil infiltration, diafiltration and diffusion under Pollutant in sewage carries out the processes such as absorption and sorption, precipitation, complexing, ion exchange, redox, degradation or conversion, realizes The purifying regeneration of sewage with recycle.Therefore, the present invention uses important link one of of this technology as sewage disposal.Soil Infiltration Treatment System is fine to the removal effect of phosphorus, can mainly by the bio assimilated and chemical solid phosphorus effect of edaphon Phosphor-removing effect is improved by increasing pH value.Meanwhile can by forming aerobic, anoxic and the alternate environment of anaerobism in the soil, Respectively suitable living environment is provided for Different Nutrition type microorganism.Pass through the combination of microorganism and soil filler, removal Various microorganisms in water.But the index of the sewage handled by soil filtration, total nitrogen and ammonia nitrogen pollutant is still exceeded, Therefore it also needs to continue to handle it.
Photocatalysis technology is a kind of green technology having important application foreground in the energy and environmental area, in the irradiation of light Under organic pollution can be thoroughly degraded to carbon dioxide and water, while catalysis material itself is lossless.Photocatalysis technology Core is photochemical catalyst, mainly the semiconducting compound with photocatalytic activity.Laser has very high energy, and direction can Control, photochemical catalyst is very high to laser induced plasma flow field, is conducive to improve photocatalysis quantum efficiency, while the high-energy effect of laser In on pollutant, make its reactivity improve, chemical bond more easy fracture.Therefore, the present invention uses laser emitter, makees in laser Photocatalysis treatment is carried out to sewage with lower, the ammonia nitrogen pollutant in decontaminated water can be removed.Anti- diaphotoscope is set simultaneously, improves laser Utilization ratio makes ammonia nitrogen pollutant remove more thorough.
The processing method of the present invention is compared with Typical physical, chemistry or bioremediation, mark is discharged after processing Accurate, major pollutants content range and processed in units cost, as shown in table 1.As it can be seen that the method for the present invention, is ensureing organic dirt Under the premise of dye object and phosphor contaminant are up to standard, the content of the ammonia nitrogen pollutant in water outlet is can significantly reduce, first grade discharging mark is reached Standard, and processed in units cost is relatively low.
Table 1
Performance indicator Up to discharge standard Organic pollution content Phosphor contaminant content Ammonia nitrogen pollutant content Processing cost(Member/t)
Typical physical method Three-level It is up to standard It is up to standard 50~100mg/L 0.6~0.8
Conventional chemistry Two level It is up to standard It is up to standard 25~50mg/L 0.8~1
Standard biologic method Two level It is up to standard It is up to standard 25~50mg/L 0.8~1
The method of the present invention Level-one It is up to standard It is up to standard 5~10mg/L 0.4~0.6
The present invention provides a kind of methods using laser treatment ammonia nitrogen in sewage organic matter, compared with prior art, Prominent feature and excellent effect are:
1. the processing method of the present invention can effectively remove organic pollution, phosphor contaminant and ammonia nitrogen pollutant in decontaminated water, Treated, and water can reach first discharge standard.
2. the processing method of the present invention, using light reaction pipe, and using laser as light source, energy is high, and controllability is strong, and light is anti- Answer speed high, treatment effeciency is high, high treating effect.
3. anti-diaphotoscope is arranged in light reaction pipe so that laser can be recycled, and be improved in the processing method of the present invention The utilization ratio of laser makes ammonia nitrogen pollutant remove more thorough.
4. the processing method of the present invention, easy to operate, cost is relatively low, can be used for large-scale promotion application.
Specific implementation mode
In the following, the present invention will be further described in detail by way of specific embodiments, but this should not be interpreted as to the present invention Range be only limitted to example below.Without departing from the idea of the above method of the present invention, according to ordinary skill The various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
A method of using laser treatment ammonia nitrogen in sewage organic matter, the detailed process handled to sewage is such as Under:
First sewage is introduced into pretreatment system, through precipitation, the Anaerobic Treatment of two-stage series connection digester, the first order and second The processing time ratio of grade is 1:1, then it is equably launched with certain hydraulic loading under artificial control and arrives soil filtration In treatment trough, treatment trough is laid with two layers of pipeline of sparge pipe and collector pipe, and the caliber of sparge pipe is 100mm, and buried depth 0.6m catchments The caliber of pipe is 170mm, and the volume loading rate of buried depth 2m, treatment trough are 0.04m3/m2D, volume load 0.03 are m3/m3· D, the net depth of bed body be 1.5m, groove body use composite anti-penetrating geomembrane, from bottom to top for:Sand filter blanket 12cm, artificial soil horizon 130cm, Backfill planting soil layer 40cm.Sewage is percolated downwards by aeration soil, is slowly infiltrated, is percolated and spread to surrounding soil, Under the collective effect of adsorption by soil, microbial action and ecological effect, retention, conversion, degradation are except organic dirt in decontaminated water Object and phosphor contaminant are contaminated, water is recycled by underground collecting conduit, obtains the water rich in ammonia nitrogen pollutant;Use be provided with Polyacrylamide is the light reaction pipe of sorbing material, adheres to tin oxide on the adsorbent material, and solid is arranged in reaction tube and swashs Optical transmitting set and the combination of anti-diaphotoscope.The water that will be enriched in ammonia nitrogen is passed through in light reaction pipe, the ammonia nitrogen pollutant one side quilt in water Sorbing material is adsorbed, and degradation reaction occurs under the action of photochemical catalyst, is on the other hand acted in the high-energy concentration of laser Under, chemical bond is broken, and further speeds up its degradation.Under the action of anti-diaphotoscope combines, the utilization ratio of laser improves, So that the ammonia nitrogen pollutant in water is removed more thorough.
It is handled using the method for embodiment 1, the levels of emissions of treated water, the content range of various pollutants, And the processing cost of sewage per ton, as shown in table 2.
Embodiment 2
A method of using laser treatment ammonia nitrogen in sewage organic matter, the detailed process handled to sewage is such as Under:
First sewage is introduced into pretreatment system, through precipitation, the Anaerobic Treatment of two-stage series connection digester, the first order and second The processing time ratio of grade is 1:4, then it is equably launched with certain hydraulic loading under artificial control and arrives soil filtration In treatment trough, treatment trough is laid with two layers of pipeline of sparge pipe and collector pipe, and the caliber of sparge pipe is 100mm, and buried depth 0.6m catchments The caliber of pipe is 150mm, and the volume loading rate of buried depth 2m, treatment trough are 0.04m3/m2D, volume load 0.02 are m3/m3· D, the net depth of bed body be 1.6m, groove body use composite anti-penetrating geomembrane, from bottom to top for:Sand filter blanket 8cm, it artificial soil horizon 130cm, returns Fill out planting soil layer 40cm.Sewage is percolated downwards by aeration soil, slowly to surrounding soil infiltration, diafiltration and diffusion, in soil Under the collective effect of earth absorption, microbial action and ecological effect, retention, conversion, degradation are except the organic contamination in decontaminated water Object and phosphor contaminant are recycled water by underground collecting conduit, obtain the water rich in ammonia nitrogen pollutant;It uses and is provided with work Property charcoal be sorbing material light reaction pipe, adhere to zirconium dioxide on the adsorbent material, and liquid laser is set in reaction tube and is sent out Emitter and the combination of anti-diaphotoscope.The water that will be enriched in ammonia nitrogen is passed through in light reaction pipe, on the one hand the ammonia nitrogen pollutant in water is adsorbed Material is adsorbed, and degradation reaction occurs under the action of photochemical catalyst, on the other hand under the effect of the high-energy concentration of laser, is changed It learns key to be broken, further speeds up its degradation.Under the action of anti-diaphotoscope combines, the utilization ratio of laser improves so that Ammonia nitrogen pollutant in water is removed more thorough.
It is handled using the method for embodiment 2, the levels of emissions of treated water, the content range of various pollutants, And the processing cost of sewage per ton, as shown in table 2.
Embodiment 3
A method of using laser treatment ammonia nitrogen in sewage organic matter, the detailed process handled to sewage is such as Under:
First sewage is introduced into pretreatment system, through precipitation, the Anaerobic Treatment of two-stage series connection digester, the first order and second The processing time ratio of grade is 1:2, then it is equably launched with certain hydraulic loading under artificial control and arrives soil filtration In treatment trough, treatment trough is laid with two layers of pipeline of sparge pipe and collector pipe, and the caliber of sparge pipe is 110mm, and buried depth 0.5m catchments The caliber of pipe is 160mm, and the volume loading rate of buried depth 2m, treatment trough are 0.03m3/m2D, volume load 0.03 are m3/m3· D, the net depth of bed body be 1.5m, groove body use composite anti-penetrating geomembrane, from bottom to top for:Sand filter blanket 10cm, artificial soil horizon 135cm, Backfill planting soil layer 35cm.Sewage is percolated downwards by aeration soil, is slowly infiltrated, is percolated and spread to surrounding soil, Under the collective effect of adsorption by soil, microbial action and ecological effect, retention, conversion, degradation are except organic dirt in decontaminated water Object and phosphor contaminant are contaminated, water is recycled by underground collecting conduit, obtains the water rich in ammonia nitrogen pollutant;Use be provided with Zeolite is the light reaction pipe of sorbing material, adheres to cadmium sulfide on the adsorbent material, and gas laser is arranged in reaction tube and emits Device and the combination of anti-diaphotoscope.The water that will be enriched in ammonia nitrogen is passed through in light reaction pipe, and the ammonia nitrogen pollutant in water is on the one hand by adsorption material Material is adsorbed, and degradation reaction occurs under the action of photochemical catalyst, on the other hand under the effect of the high-energy concentration of laser, chemistry Key is broken, and further speeds up its degradation.Under the action of anti-diaphotoscope combines, the utilization ratio of laser improves so that water In ammonia nitrogen pollutant remove more thorough.
It is handled using the method for embodiment 3, the levels of emissions of treated water, the content range of various pollutants, And the processing cost of sewage per ton, as shown in table 2.
Embodiment 4
A method of using laser treatment ammonia nitrogen in sewage organic matter, the detailed process handled to sewage is such as Under:
First sewage is introduced into pretreatment system, through precipitation, the Anaerobic Treatment of two-stage series connection digester, the first order and second The processing time ratio of grade is 1:3, then it is equably launched with certain hydraulic loading under artificial control and arrives soil filtration In treatment trough, treatment trough is laid with two layers of pipeline of sparge pipe and collector pipe, and the caliber of sparge pipe is 100mm, and buried depth 0.4m catchments The caliber of pipe is 70mm, and the volume loading rate of buried depth 2.1m, treatment trough are 0.04m3/m2D, volume load 0.03 are m3/m3· D, the net depth of bed body be 1.5m, groove body use composite anti-penetrating geomembrane, from bottom to top for:Sand filter blanket 9cm, it artificial soil horizon 138cm, returns Fill out planting soil layer 32cm.Sewage is percolated downwards by aeration soil, slowly to surrounding soil infiltration, diafiltration and diffusion, in soil Under the collective effect of earth absorption, microbial action and ecological effect, retention, conversion, degradation are except the organic contamination in decontaminated water Object and phosphor contaminant are recycled water by underground collecting conduit, obtain the water rich in ammonia nitrogen pollutant;It uses and is provided with oxygen Change the light reaction pipe that aluminium is sorbing material, adhere to zinc oxide on the adsorbent material, and semiconductor laser is set in reaction tube and is sent out Emitter and the combination of anti-diaphotoscope.The water that will be enriched in ammonia nitrogen is passed through in light reaction pipe, on the one hand the ammonia nitrogen pollutant in water is adsorbed Material is adsorbed, and degradation reaction occurs under the action of photochemical catalyst, on the other hand under the effect of the high-energy concentration of laser, is changed It learns key to be broken, further speeds up its degradation.Under the action of anti-diaphotoscope combines, the utilization ratio of laser improves so that Ammonia nitrogen pollutant in water is removed more thorough.
It is handled using the method for embodiment 4, the levels of emissions of treated water, the content range of various pollutants, And the processing cost of sewage per ton, as shown in table 2.
Embodiment 5
A method of using laser treatment ammonia nitrogen in sewage organic matter, the detailed process handled to sewage is such as Under:
First sewage is introduced into pretreatment system, through precipitation, the Anaerobic Treatment of two-stage series connection digester, the first order and second The processing time ratio of grade is 1:4, then it is equably launched with certain hydraulic loading under artificial control and arrives soil filtration In treatment trough, treatment trough is laid with two layers of pipeline of sparge pipe and collector pipe, and the caliber of sparge pipe is 115mm, and buried depth 0.5m catchments The caliber of pipe is 165mm, and the volume loading rate of buried depth 2m, treatment trough are 0.03m3/m2D, volume load 0.03 are m3/m3· D, the net depth of bed body be 1.5m, groove body use composite anti-penetrating geomembrane, from bottom to top for:Sand filter blanket 11cm, artificial soil horizon 135cm, Backfill planting soil layer 35cm.Sewage is percolated downwards by aeration soil, is slowly infiltrated, is percolated and spread to surrounding soil, Under the collective effect of adsorption by soil, microbial action and ecological effect, retention, conversion, degradation are except organic dirt in decontaminated water Object and phosphor contaminant are contaminated, water is recycled by underground collecting conduit, obtains the water rich in ammonia nitrogen pollutant;Use be provided with Silica gel is the light reaction pipe of sorbing material, adheres to zirconium dioxide on the adsorbent material, and Solid State Laser is arranged in reaction tube and sends out Emitter and the combination of anti-diaphotoscope.The water that will be enriched in ammonia nitrogen is passed through in light reaction pipe, on the one hand the ammonia nitrogen pollutant in water is adsorbed Material is adsorbed, and degradation reaction occurs under the action of photochemical catalyst, on the other hand under the effect of the high-energy concentration of laser, is changed It learns key to be broken, further speeds up its degradation.Under the action of anti-diaphotoscope combines, the utilization ratio of laser improves so that Ammonia nitrogen pollutant in water is removed more thorough.
It is handled using the method for embodiment 5, the levels of emissions of treated water, the content range of various pollutants, And the processing cost of sewage per ton, as shown in table 2.
Embodiment 6
A method of using laser treatment ammonia nitrogen in sewage organic matter, the detailed process handled to sewage is such as Under:
First sewage is introduced into pretreatment system, through precipitation, the Anaerobic Treatment of two-stage series connection digester, the first order and second The processing time ratio of grade is 1:1, then it is equably launched with certain hydraulic loading under artificial control and arrives soil filtration In treatment trough, treatment trough is laid with two layers of pipeline of sparge pipe and collector pipe, and the caliber of sparge pipe is 100mm, and buried depth 0.6m catchments The caliber of pipe is 165mm, and the volume loading rate of buried depth 2m, treatment trough are 0.04m3/m2D, volume load 0.025 are m3/m3· D, the net depth of bed body be 1.55m, groove body use composite anti-penetrating geomembrane, from bottom to top for:Sand filter blanket 12cm, artificial soil horizon 135cm, Backfill planting soil layer 35cm.Sewage is percolated downwards by aeration soil, is slowly infiltrated, is percolated and spread to surrounding soil, Under the collective effect of adsorption by soil, microbial action and ecological effect, retention, conversion, degradation are except organic dirt in decontaminated water Object and phosphor contaminant are contaminated, water is recycled by underground collecting conduit, obtains the water rich in ammonia nitrogen pollutant;Use be provided with Polyacrylamide is the light reaction pipe of sorbing material, adheres to titanium dioxide on the adsorbent material, and be arranged in reaction tube and partly lead Volumetric laser transmitter and the combination of anti-diaphotoscope.The water that will be enriched in ammonia nitrogen is passed through in light reaction pipe, one side of ammonia nitrogen pollutant in water Face is adsorbed by sorbing material, and degradation reaction occurs under the action of photochemical catalyst, is on the other hand concentrated in the high-energy of laser Under effect, chemical bond is broken, and further speeds up its degradation.Under the action of anti-diaphotoscope combines, the utilization ratio of laser It improves so that the ammonia nitrogen pollutant in water is removed more thorough.
It is handled using the method for embodiment 6, the levels of emissions of treated water, the content range of various pollutants, And the processing cost of sewage per ton, as shown in table 2.
Comparative example 1
Do not use laser emitter and anti-diaphotoscope, other processing procedures and treatment conditions consistent with embodiment 6.
It is handled using the method for comparative example 1, the levels of emissions of treated water, the content range of various pollutants, And the processing cost of sewage per ton, as shown in table 2.
Table 2
Performance indicator Up to discharge standard Organic pollution content Phosphor contaminant content Ammonia nitrogen pollutant content Processing cost(Member/t)
Comparative example 1 Three-level It is up to standard It is up to standard 50~100mg/L 0.8~1
Embodiment 1 Level-one It is up to standard It is up to standard 5~10mg/L 0.4~0.6
Embodiment 2 Level-one It is up to standard It is up to standard 5~10mg/L 0.4~0.6
Embodiment 3 Level-one It is up to standard It is up to standard 5~10mg/L 0.4~0.6
Embodiment 4 Level-one It is up to standard It is up to standard 5~10mg/L 0.4~0.6
Embodiment 5 Level-one It is up to standard It is up to standard 5~10mg/L 0.4~0.6
Embodiment 6 Level-one It is up to standard It is up to standard 5~10mg/L 0.4~0.6

Claims (7)

1. a kind of method using laser treatment ammonia nitrogen in sewage organic matter, which is characterized in that by sewage through precipitation, Anaerobic Treatment Afterwards, it puts into and removes organic pollution and phosphor contaminant in soil filtration treatment trough, obtain the water rich in ammonia nitrogen pollutant, then exist The photochemical catalyst catalytic degradation being attached in light reaction pipe on sorbing material, and promote chemical bond disconnected using the high-energy of laser It splits, to remove the ammonia nitrogen pollutant in water, completes the processing to sewage, sewage disposal is as follows:
(1)First sewage is introduced into pretreatment system, it is negative with certain waterpower under artificial control after precipitation and Anaerobic Treatment Lotus equably launches it in soil filtration treatment trough, and sewage is percolated downwards by aeration soil, slowly to surrounding soil Infiltration, diafiltration and diffusion, under the collective effect of adsorption by soil, microbial action and ecological effect, retention, conversion, degradation Except the organic pollution and phosphor contaminant in decontaminated water, water is recycled by underground collecting conduit, obtains being rich in ammonia and nitrogen pollution The water of object;
(2)Using the light reaction pipe for being provided with sorbing material, adhere to photochemical catalyst on the adsorbent material, and be arranged in reaction tube Laser emitter and the combination of anti-diaphotoscope, by step(1)The water rich in ammonia nitrogen collected is passed through in light reaction pipe, the ammonia nitrogen in water On the one hand pollutant is adsorbed by sorbing material, degradation reaction occurs under the action of photochemical catalyst, on the other hand in laser Under the effect of high-energy concentration, chemical bond is broken, and further speeds up its degradation, while under the action of anti-diaphotoscope combines, The utilization ratio of laser improves so that the ammonia nitrogen pollutant in water is removed more thorough;The sorbing material is polyacrylamide At least one of amine, silica gel, aluminium oxide, activated carbon or zeolite;The photochemical catalyst is titanium dioxide, zirconium dioxide, oxidation At least one of zinc, tin oxide or cadmium sulfide.
2. a kind of method using laser treatment ammonia nitrogen in sewage organic matter according to claim 1, it is characterised in that:Step (1)It is to be higher by 0.1~0.15m of the water surface, submergence that the precipitation process, which uses rectangular sedimentation tank, the height for the baffle that becomes a mandarin, For 0.5~1m, away from 0.5~1m of water inlet.
3. a kind of method using laser treatment ammonia nitrogen in sewage organic matter according to claim 1, it is characterised in that:Step (1)It is high speed digester that the Anaerobic Treatment, which uses two-stage series connection digester, the first order, and the second level is traditional digester, processing Time ratio is 1:1~1:4.
4. a kind of method using laser treatment ammonia nitrogen in sewage organic matter according to claim 1, it is characterised in that:Step (1)The pipeline of the soil filtration treatment trough is laid in 2 layers, i.e. sparge pipe and collector pipe;The caliber of the sparge pipe be 100~ 120mm, buried depth are 0.4~0.6m;The caliber of the collector pipe is 150~170mm, and buried depth is 2~2.1m.
5. according to a kind of method using laser treatment ammonia nitrogen in sewage organic matter of claim 1 or 4, it is characterised in that: Step(1)The volume loading rate of the soil filtration treatment trough is 0.03~0.04m3/m2D, volume load be 0.02~ 0.03m3/m3D, the net depth of bed body are 1.5~1.6m.
6. according to a kind of method using laser treatment ammonia nitrogen in sewage organic matter of claim 1 or 4, it is characterised in that: Step(1)The groove body of the soil filtration treatment trough uses composite anti-penetrating geo-membrane material, bed body backfill to be from bottom to top followed successively by: 8~12cm of sand filter blanket, 130~140cm of artificial soil horizon, 30~40cm of backfill planting soil layer.
7. a kind of method using laser treatment ammonia nitrogen in sewage organic matter according to claim 1, it is characterised in that:Step (2)The laser emitter is Solid State Laser transmitter, liquid laser transmitter, gas laser transmitter or semiconductor laser hair Emitter, it is 4.5~6.5 × 10 to generate laser frequency14Hz。
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CN103011332A (en) * 2012-12-10 2013-04-03 天津大学 Method and device for catalytically treating organic pollutants in water by laser
CN104193074A (en) * 2014-07-25 2014-12-10 中国环境科学研究院 Device and method for treating high-concentration and degradation-resistant organic waste water
CN104193084A (en) * 2014-07-25 2014-12-10 中国环境科学研究院 Sewage treatment device of multistage inflow vertical flow soil infiltration system and method for treating sewage by using device

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CN103011332A (en) * 2012-12-10 2013-04-03 天津大学 Method and device for catalytically treating organic pollutants in water by laser
CN104193074A (en) * 2014-07-25 2014-12-10 中国环境科学研究院 Device and method for treating high-concentration and degradation-resistant organic waste water
CN104193084A (en) * 2014-07-25 2014-12-10 中国环境科学研究院 Sewage treatment device of multistage inflow vertical flow soil infiltration system and method for treating sewage by using device

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