CN107601780A - A kind of method using laser treatment ammonia nitrogen in sewage organic matter - Google Patents

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

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CN107601780A
CN107601780A CN201711032978.6A CN201711032978A CN107601780A CN 107601780 A CN107601780 A CN 107601780A CN 201711032978 A CN201711032978 A CN 201711032978A CN 107601780 A CN107601780 A CN 107601780A
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ammonia nitrogen
sewage
water
laser
treatment
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CN107601780B (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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Chengdu New Keli Chemical Science Co Ltd
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Abstract

The invention belongs to the technical field of sewage disposal, there is provided a kind of method using laser treatment ammonia nitrogen in sewage organic matter.This method is by sewage after precipitation, Anaerobic Treatment, put into and organic pollution and phosphor contaminant are removed 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 simple to operate, cost is relatively low, available for large-scale promotion application.

Description

A kind of method using laser treatment ammonia nitrogen in sewage organic matter
Technical field
The invention belongs to the technical field of sewage disposal, there is provided 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 industrial expansion, population Increase, the aggravation of urbanization and chemical fertilizer, the increase of Pesticide use amount, the water as Source of life have received serious dirt Dye.Water pollution refers to pollutant and entered in river, lake, ocean or underground water, makes physics, chemical property or the life of water quality and bed mud Thing 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 of ecological environment.
The reason for causing water pollution has two natural and artificial aspect factors, and we are general, and described water pollution refers to people To pollute, mainly including sanitary sewage, industrial wastewater, hospital sewage, the runoff of farmland water and infiltration, the stacking of solid waste 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 have harm, and also serious threat has arrived the health of the mankind, constrain the economic development of various countries, especially send out in recent years Raw water contamination accident is startling.Therefore, treasure and water conservation, reinforcement water pollution control with taking precautions against, are 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 The microbial reproduction into water equipment, biofouling is formed, block pipeline and water equipment, influence heat exchange.Largely contain ammonia nitrogen Sewage be discharged into rivers, lake, cause the eutrophication of natural water, while bring to life and the processing of industrial water larger Difficulty.The NH_3-N treating practicality 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 stable, 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 efficiency high, It is stable, but power consumption is big, the easy fouling of tower wall, can be reduced in cold season efficiency;Chemical precipitation method technique is simple, efficiency Height, but it is big to add pharmaceutical quantities;Membrane absorption method, higher ammonia nitrogen and salt amount can effectively suppress 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, substituted 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 sub- equality human hair understands a kind of depth 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 low BOD5 ammonia-nitrogen sewage, ammonia-nitrogen sewage qualified discharge or are returned after processing With, but this method it is complex to composition ammonia-nitrogen sewage treatment effect it is bad, and the leakage problems of certain liquid film be present.Separately Outside, Lin Jiamei et al. has invented a kind of processing method of decentralized 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- Answer pond water outlet to be input in aeration Aerobic Pond and carry out aeration aerobic reaction, initial operating stage disposably adds in aerobic reaction tank is aerated Enter diatomite, then aeration Aerobic Pond water outlet is input to after artificial swamp using plant to its further processing, last son The water outlet of artificial swamp is drained into natural stream networks, but this method nitrification is not thorough enough, causes ammonia and nitrogen organic to handle Imitate bad, whole process is complex.
It can be seen that in the prior art there is conventional processing technique is less efficient, high energy consumption, ammonia nitrogen pollutant treatment effect not Good, nitrobacteria growth is relatively low compared with nitrification removal ammonia nitrogen index is caused slowly in the traditional biological denitrogenation being most widely used at present, The method of laser treatment ammonia-nitrogen sewage temporarily without maturation simultaneously.
The content of the invention
It is an object of the invention to provide a kind of method using laser treatment ammonia nitrogen in sewage organic matter, this method is by sewage After precipitation, Anaerobic Treatment, put into and organic pollution and phosphor contaminant are removed in soil filtration treatment trough, obtain dirty rich in ammonia nitrogen The water of thing, 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, can solve general ammonia nitrogen and give up 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 The problem of nitrobacteria growth compared with causing nitrification removal ammonia nitrogen index relatively low slowly in system biological denitrificaion.
Concrete technical scheme of the present invention is as follows:
A kind of method using laser treatment ammonia nitrogen in sewage organic matter, by sewage after precipitation, Anaerobic Treatment, input soil oozes Filter and organic pollution and phosphor contaminant are removed in treatment trough, obtain the water rich in ammonia nitrogen pollutant, then the quilt in light reaction pipe The photochemical catalyst catalytic degradation being attached on sorbing material, and chemical bond rupture is promoted using the high-energy of laser, to remove water In ammonia nitrogen pollutant, complete the processing to sewage, its sewage disposal comprises the following steps that:
(1)First sewage is introduced into pretreatment system, after precipitation and Anaerobic Treatment, born under manual control with certain waterpower 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, degraded 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 thing;
(2)Using the light reaction pipe for being provided with sorbing material, adhere to photochemical catalyst on the adsorbent material, and set in reaction tube Generating laser 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 adsorbed material is adsorbed pollutant, degradation reaction occurs in the presence 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 degraded, while in the presence of the combination of anti-diaphotoscope, 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, the dirt of animal feeding Sewage etc. caused by water, hairdressing place.
Preferably, step(1)The precipitation process uses rectangular sedimentation tank, and the height of its baffle plate that becomes a mandarin is to be higher by the water surface 0.1~0.15m, submergence is 0.5~1m, away from 0.5~1m of water inlet.
Preferably, step(1)The Anaerobic Treatment uses two-stage series connection digester, and the first order is high speed digester, and second Level is traditional digester, and processing time ratio is 1:1~1:4.
Preferably, step(1)The pipe laying of the soil filtration treatment trough is 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 born Lotus is 0.02~0.03m3/m3D, the net depth of bed body are 1.5~1.6m.
Preferably, step(1)The cell 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, aluminum 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 generating laser is Solid State Laser transmitter, liquid laser transmitter, gas laser Transmitter or semiconductor laser transmitter, it is 4.5~6.5 × 10 to produce laser frequency14Hz。
Sedimentation basin is usually the structures for being used for mud-water separation before biochemical reaction or after biochemical reaction, especially separation The thinner sludge of grain.After sedimentation basin, particle thinner inorganic sludge and organic sludge are removed.In digester, detest Oxygen animalcule is possible to degrade to some organic matters that aerobic microbiological can not degrade or Partial digestion.Therefore, for certain Waste water containing hardly degraded organic substance a bit, more preferable treatment effect, Huo Zheti can be obtained by carrying out pretreatment using anaerobic technique The biodegradability of high sewage, improve 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 The sewage input of pretreatment is crossed with 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, degraded or conversion, realizes The purifying regeneration of sewage is with recycling.Therefore, the present invention is using one of the important step of this technology as sewage disposal.Soil Infiltration Treatment System is fine to the removal effect of phosphorus, is mainly acted on by the bio assimilated and chemical solid phosphorus of edaphon, can Phosphor-removing effect is improved by increasing pH value.Meanwhile can by forming aerobic, anoxic and the alternate environment of anaerobism in soil, Each suitable living environment is provided for Different Nutrition type microorganism.By microorganism and the combination of soil filler, remove Various microorganisms in water.But the index of the sewage handled by soil filtration, its total nitrogen and ammonia nitrogen pollutant is still exceeded, Therefore also need to continue to handle it.
Photocatalysis technology is a kind of green technology for having important application prospect 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 advantageous 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 generating laser, 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, ammonia nitrogen pollutant is set to remove more thorough.
The processing method of the present invention is compared with Typical physical, chemistry or bioremediation, it discharges mark after handling Accurate, major pollutants content range and processed in units cost, as shown in table 1.It can be seen that method of the invention, is ensureing organic dirt On the premise of dye thing and phosphor contaminant are up to standard, the content of the ammonia nitrogen pollutant in water outlet can be significantly reduced, reaches first grade discharging mark Standard, and processed in units cost is relatively low.
Table 1
Performance indications 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 inventive method One-level It is up to standard It is up to standard 5~10mg/L 0.4~0.6
The invention provides a kind of method using laser treatment ammonia nitrogen in sewage organic matter, and compared with prior art, it is protruded The characteristics of and excellent effect be:
1. the processing method of the present invention, it can effectively remove organic pollution, phosphor contaminant and ammonia nitrogen pollutant in decontaminated water, processing Water afterwards 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. the processing method of the present invention, anti-diaphotoscope is set in light reaction pipe so that laser can be recycled, and be improved The utilization ratio of laser, ammonia nitrogen pollutant is set to remove more thorough.
4. the processing method of the present invention, simple to operate, cost is relatively low, available for large-scale promotion application.
Embodiment
Below by way of embodiment, the present invention is described in further detail, but this should not be interpreted as to the present invention Scope be only limitted to following example.In the case where not departing from above method thought 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 kind of method using laser treatment ammonia nitrogen in sewage organic matter, the detailed process that it is handled sewage are as follows:
First sewage is introduced into pretreatment system, through precipitation, the Anaerobic Treatment of two-stage series connection digester, the first order and the second level Processing time ratio is 1:1, then it is equably launched to soil filtration processing under manual control with certain hydraulic load In groove, treatment trough laying two layers of pipeline of sparge pipe and collector pipe, the caliber of sparge pipe is 100mm, buried depth 0.6m, collector pipe Caliber is 170mm, and buried depth 2m, the volume loading rate for the treatment of trough is 0.04m3/m2D, volume load 0.03 are m3/m3D, bed The net depth of body is 1.5m, and cell body uses 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, slowly to surrounding soil infiltration, diafiltration and diffusion, in soil Under the collective effect of absorption, microbial action and ecological effect, retention, conversion, degraded are except the organic pollution in decontaminated water And phosphor contaminant, water is recycled by underground collecting conduit, obtains the water rich in ammonia nitrogen pollutant;Use and be provided with poly- third Acrylamide is the light reaction pipe of sorbing material, adheres to tin oxide on the adsorbent material, and set Solid State Laser to send out in reaction tube Emitter 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 adsorbed Material is adsorbed, and degradation reaction occurs in the presence of photochemical catalyst, on the other hand under the high-energy concentration effect of laser, is changed Learn key to be broken, further speed up its degraded.In the presence of the combination of anti-diaphotoscope, the utilization ratio of laser improves so that Ammonia nitrogen pollutant in water is removed more thorough.
Handled using the method for embodiment 1, the levels of emissions of the water after processing, the content range of various pollutants, And the processing cost of sewage per ton, as shown in table 2.
Embodiment 2
A kind of method using laser treatment ammonia nitrogen in sewage organic matter, the detailed process that it is handled sewage are as follows:
First sewage is introduced into pretreatment system, through precipitation, the Anaerobic Treatment of two-stage series connection digester, the first order and the second level Processing time ratio is 1:4, then it is equably launched to soil filtration processing under manual control with certain hydraulic load In groove, treatment trough laying two layers of pipeline of sparge pipe and collector pipe, the caliber of sparge pipe is 100mm, buried depth 0.6m, collector pipe Caliber is 150mm, and buried depth 2m, the volume loading rate for the treatment of trough is 0.04m3/m2D, volume load 0.02 are m3/m3D, bed The net depth of body is 1.6m, and cell body uses composite anti-penetrating geomembrane, from bottom to top for:Sand filter blanket 8cm, artificial soil horizon 130cm, backfill kind Plant soil layer 40cm.Sewage is percolated downwards by aeration soil, slowly to surrounding soil infiltration, diafiltration and diffusion, is inhaled in soil Under the collective effect of attached, microbial action and ecological effect, retention, conversion, degraded remove decontaminated water in organic pollution and Phosphor contaminant, water is recycled by underground collecting conduit, obtains the water rich in ammonia nitrogen pollutant;Use and be provided with activated carbon For the light reaction pipe of sorbing material, adhere to zirconium dioxide, and liquid laser transmitter is set in reaction tube on the adsorbent material And anti-diaphotoscope combination.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 Adsorbed, degradation reaction occurs in the presence of photochemical catalyst, on the other hand under the high-energy concentration effect of laser, chemical bond It is broken, further speeds up its degraded.In the presence of the combination of anti-diaphotoscope, the utilization ratio of laser improves so that in water Ammonia nitrogen pollutant remove more thorough.
Handled using the method for embodiment 2, the levels of emissions of the water after processing, the content range of various pollutants, And the processing cost of sewage per ton, as shown in table 2.
Embodiment 3
A kind of method using laser treatment ammonia nitrogen in sewage organic matter, the detailed process that it is handled sewage are as follows:
First sewage is introduced into pretreatment system, through precipitation, the Anaerobic Treatment of two-stage series connection digester, the first order and the second level Processing time ratio is 1:2, then it is equably launched to soil filtration processing under manual control with certain hydraulic load In groove, treatment trough laying two layers of pipeline of sparge pipe and collector pipe, the caliber of sparge pipe is 110mm, buried depth 0.5m, collector pipe Caliber is 160mm, and buried depth 2m, the volume loading rate for the treatment of trough is 0.03m3/m2D, volume load 0.03 are m3/m3D, bed The net depth of body is 1.5m, and cell body uses 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, slowly to surrounding soil infiltration, diafiltration and diffusion, in soil Under the collective effect of absorption, microbial action and ecological effect, retention, conversion, degraded are except the organic pollution in decontaminated water And phosphor contaminant, water is recycled by underground collecting conduit, obtains the water rich in ammonia nitrogen pollutant;Use and be provided with zeolite For the light reaction pipe of sorbing material, adhere to cadmium sulfide on the adsorbent material, and set in reaction tube gas laser transmitter and Anti- diaphotoscope combination.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 institute Absorption, occurs degradation reaction in the presence of photochemical catalyst, on the other hand under the high-energy concentration effect of laser, chemical bond hair Raw fracture, further speeds up its degraded.In the presence of the combination of anti-diaphotoscope, the utilization ratio of laser improves so that in water Ammonia nitrogen pollutant is removed more thorough.
Handled using the method for embodiment 3, the levels of emissions of the water after processing, the content range of various pollutants, And the processing cost of sewage per ton, as shown in table 2.
Embodiment 4
A kind of method using laser treatment ammonia nitrogen in sewage organic matter, the detailed process that it is handled sewage are as follows:
First sewage is introduced into pretreatment system, through precipitation, the Anaerobic Treatment of two-stage series connection digester, the first order and the second level Processing time ratio is 1:3, then it is equably launched to soil filtration processing under manual control with certain hydraulic load In groove, treatment trough laying two layers of pipeline of sparge pipe and collector pipe, the caliber of sparge pipe is 100mm, buried depth 0.4m, collector pipe Caliber is 70mm, and buried depth 2.1m, the volume loading rate for the treatment of trough is 0.04m3/m2D, volume load 0.03 are m3/m3D, bed The net depth of body is 1.5m, and cell body uses composite anti-penetrating geomembrane, from bottom to top for:Sand filter blanket 9cm, artificial soil horizon 138cm, backfill kind Plant soil layer 32cm.Sewage is percolated downwards by aeration soil, slowly to surrounding soil infiltration, diafiltration and diffusion, is inhaled in soil Under the collective effect of attached, microbial action and ecological effect, retention, conversion, degraded remove decontaminated water in organic pollution and Phosphor contaminant, water is recycled by underground collecting conduit, obtains the water rich in ammonia nitrogen pollutant;Use and be provided with aluminum oxide For the light reaction pipe of sorbing material, adhere to zinc oxide, and semiconductor laser transmitter is set in reaction tube on the adsorbent material And anti-diaphotoscope combination.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 Adsorbed, degradation reaction occurs in the presence of photochemical catalyst, on the other hand under the high-energy concentration effect of laser, chemical bond It is broken, further speeds up its degraded.In the presence of the combination of anti-diaphotoscope, the utilization ratio of laser improves so that in water Ammonia nitrogen pollutant remove more thorough.
Handled using the method for embodiment 4, the levels of emissions of the water after processing, the content range of various pollutants, And the processing cost of sewage per ton, as shown in table 2.
Embodiment 5
A kind of method using laser treatment ammonia nitrogen in sewage organic matter, the detailed process that it is handled sewage are as follows:
First sewage is introduced into pretreatment system, through precipitation, the Anaerobic Treatment of two-stage series connection digester, the first order and the second level Processing time ratio is 1:4, then it is equably launched to soil filtration processing under manual control with certain hydraulic load In groove, treatment trough laying two layers of pipeline of sparge pipe and collector pipe, the caliber of sparge pipe is 115mm, buried depth 0.5m, collector pipe Caliber is 165mm, and buried depth 2m, the volume loading rate for the treatment of trough is 0.03m3/m2D, volume load 0.03 are m3/m3D, bed The net depth of body is 1.5m, and cell body uses 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, slowly to surrounding soil infiltration, diafiltration and diffusion, in soil Under the collective effect of absorption, microbial action and ecological effect, retention, conversion, degraded are except the organic pollution in decontaminated water And phosphor contaminant, water is recycled by underground collecting conduit, obtains the water rich in ammonia nitrogen pollutant;Use and be provided with silica gel For the light reaction pipe of sorbing material, adhere to zirconium dioxide, and Solid State Laser transmitter is set in reaction tube on the adsorbent material And anti-diaphotoscope combination.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 Adsorbed, degradation reaction occurs in the presence of photochemical catalyst, on the other hand under the high-energy concentration effect of laser, chemical bond It is broken, further speeds up its degraded.In the presence of the combination of anti-diaphotoscope, the utilization ratio of laser improves so that in water Ammonia nitrogen pollutant remove more thorough.
Handled using the method for embodiment 5, the levels of emissions of the water after processing, the content range of various pollutants, And the processing cost of sewage per ton, as shown in table 2.
Embodiment 6
A kind of method using laser treatment ammonia nitrogen in sewage organic matter, the detailed process that it is handled sewage are as follows:
First sewage is introduced into pretreatment system, through precipitation, the Anaerobic Treatment of two-stage series connection digester, the first order and the second level Processing time ratio is 1:1, then it is equably launched to soil filtration processing under manual control with certain hydraulic load In groove, treatment trough laying two layers of pipeline of sparge pipe and collector pipe, the caliber of sparge pipe is 100mm, buried depth 0.6m, collector pipe Caliber is 165mm, and buried depth 2m, the volume loading rate for the treatment of trough is 0.04m3/m2D, volume load 0.025 are m3/m3D, bed The net depth of body is 1.55m, and cell body uses 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, slowly to surrounding soil infiltration, diafiltration and diffusion, in soil Under the collective effect of absorption, microbial action and ecological effect, retention, conversion, degraded are except the organic pollution in decontaminated water And phosphor contaminant, water is recycled by underground collecting conduit, obtains the water rich in ammonia nitrogen pollutant;Use and be provided with poly- third Acrylamide is the light reaction pipe of sorbing material, adheres to titanium dioxide on the adsorbent material, and set semiconductor to swash in reaction tube 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 in the presence 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 degraded.In the presence of the combination of anti-diaphotoscope, the utilization ratio of laser improves, So that the ammonia nitrogen pollutant in water is removed more thorough.
Handled using the method for embodiment 6, the levels of emissions of the water after processing, the content range of various pollutants, And the processing cost of sewage per ton, as shown in table 2.
Comparative example 1
Generating laser and anti-diaphotoscope are not used, and other processing procedures and treatment conditions are consistent with embodiment 6.
Handled using the method for comparative example 1, the levels of emissions of the water after processing, the content range of various pollutants, And the processing cost of sewage per ton, as shown in table 2.
Table 2
Performance indications 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 One-level It is up to standard It is up to standard 5~10mg/L 0.4~0.6
Embodiment 2 One-level It is up to standard It is up to standard 5~10mg/L 0.4~0.6
Embodiment 3 One-level It is up to standard It is up to standard 5~10mg/L 0.4~0.6
Embodiment 4 One-level It is up to standard It is up to standard 5~10mg/L 0.4~0.6
Embodiment 5 One-level It is up to standard It is up to standard 5~10mg/L 0.4~0.6
Embodiment 6 One-level It is up to standard It is up to standard 5~10mg/L 0.4~0.6

Claims (9)

  1. A kind of 1. method using laser treatment ammonia nitrogen in sewage organic matter, it is characterised in that by sewage through precipitation, Anaerobic Treatment Afterwards, put into and organic pollution and phosphor contaminant are removed in soil filtration treatment trough, obtain the water rich in ammonia nitrogen pollutant, Ran Hou The photochemical catalyst catalytic degradation being attached in light reaction pipe on sorbing material, and promote chemical bond to break using the high-energy of laser Split, to remove the ammonia nitrogen pollutant in water, complete the processing to sewage, its sewage disposal comprises the following steps that:
    (1)First sewage is introduced into pretreatment system, after precipitation and Anaerobic Treatment, born under manual control with certain waterpower 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, degraded 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 thing;
    (2)Using the light reaction pipe for being provided with sorbing material, adhere to photochemical catalyst on the adsorbent material, and set in reaction tube Generating laser 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 adsorbed material is adsorbed pollutant, degradation reaction occurs in the presence 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 degraded, while in the presence of the combination of anti-diaphotoscope, The utilization ratio of laser improves so that the ammonia nitrogen pollutant in water is removed more thorough.
  2. A kind of 2. method using laser treatment ammonia nitrogen in sewage organic matter according to claim 1, it is characterised in that:Step (1)The precipitation process uses rectangular sedimentation tank, and the height of its baffle plate that becomes a mandarin is to be higher by 0.1~0.15m of the water surface, submergence For 0.5~1m, away from 0.5~1m of water inlet.
  3. A kind of 3. method using laser treatment ammonia nitrogen in sewage organic matter according to claim 1, it is characterised in that:Step (1)The Anaerobic Treatment uses two-stage series connection digester, and the first order is high speed digester, and the second level is traditional digester, processing Time ratio is 1:1~1:4.
  4. A kind of 4. method using laser treatment ammonia nitrogen in sewage organic matter according to claim 1, it is characterised in that:Step (1)The pipe laying of the soil filtration treatment trough is 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. 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. 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 cell body of the soil filtration treatment trough uses composite anti-penetrating geo-membrane material, and bed body backfill is 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 7. method using laser treatment ammonia nitrogen in sewage organic matter according to claim 1, it is characterised in that:Step (2)The sorbing material is at least one of polyacrylamide, silica gel, aluminum oxide, activated carbon or zeolite.
  8. A kind of 8. method using laser treatment ammonia nitrogen in sewage organic matter according to claim 1, it is characterised in that:Step (2)The photochemical catalyst is at least one of titanium dioxide, zirconium dioxide, zinc oxide, tin oxide or cadmium sulfide.
  9. A kind of 9. method using laser treatment ammonia nitrogen in sewage organic matter according to claim 1, it is characterised in that:Step (2)The generating laser is Solid State Laser transmitter, liquid laser transmitter, gas laser transmitter or semiconductor laser hair Emitter, it is 4.5~6.5 × 10 to produce laser frequency14Hz。
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CN109205695A (en) * 2018-08-28 2019-01-15 江苏大学 For the laser cavitation bin device in organic water pollution degeneration system

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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
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
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

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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
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
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

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109205695A (en) * 2018-08-28 2019-01-15 江苏大学 For the laser cavitation bin device in organic water pollution degeneration system

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