CN103951141A - Garbage leachate treatment process and device - Google Patents
Garbage leachate treatment process and device Download PDFInfo
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- CN103951141A CN103951141A CN201410192212.4A CN201410192212A CN103951141A CN 103951141 A CN103951141 A CN 103951141A CN 201410192212 A CN201410192212 A CN 201410192212A CN 103951141 A CN103951141 A CN 103951141A
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Abstract
The invention relates to the technical field of sewage treatment and particularly relates to a garbage leachate treatment process and device. The process comprises the following steps of introducing garbage leachate into a filter for filtering, and removing particulate matters from the garbage leachate, so as to obtain a filtrate; introducing the filtrate into a reverse osmosis membrane device for treatment, so as to obtain produced water and high-concentration water; adding a proper amount of denitrification agent into the produced water, so as to obtain clean water reaching the emission standard; introducing the high-concentration water into a struvite reactor, reacting for 1-30 minutes, so as to obtain a mixture of precipitate and medium-concentration water, and filtering, so as to obtain a fertilizer and the medium-concentration water; carrying out coagulation treatment on the medium-concentration water by a coagulation method, so as to obtain a mixture of flocculate and low-concentration water, and filtering, so as to obtain sludge and the low-concentration water; introducing the low-concentration water into biochemical facilities for treatment, thereby obtaining clean water reaching the emission standard. According to the process and the device, the operation is simple, convenient and efficient, the structure is simple, outlet water is discharged in a standard reaching manner or reused, and high-concentration ammonia nitrogen is recovered as the fertilizer, so that the waste is changed into the valuable, and the economic benefit is high.
Description
Technical field
The present invention relates to technical field of sewage, particularly a kind of garbage leachate treatment process and treatment unit.
Background technology
Percolate be in dumping, landfill process due to the drip washing of rainwater, wash away and the immersion of surface water and groundwater the percolate that contains a large amount of organic impuritys filtering out by extraction, hydrolysis and fermentation; There is water quality complexity, contain the characteristics such as heavy metal and soil ulmin and biodegradability be poor.If percolate is direct entered environment without dealing carefully with, will cause severe contamination to environment, finally affect regional ecosystem balance, endanger huge.
Garbage leachate treatment process mainly contains coagulation+biological treatment, coagulation+advanced oxidation+biological treatment etc. at present.These techniques are better to new refuse percolate treatment effect.During the aging percolate that but above-mentioned art breading ammonia nitrogen concentration is high, carbon-nitrogen ratio (C/N) is low, biodegradability is poor, must additional carbon regulate C/N so that water outlet ammonia nitrogen, total nitrogen are up to standard, COD(chemical oxygen demand (COD)) up to standardly also to improve on wastewater biodegradability basis and realize at the high-level oxidation technology of complicated operation.
For aging percolate, existing evaporation+ion exchange resin+reverse osmosis membrane processing, steam the techniques such as ammonium+biochemistry+membrane sepn, reverse osmosis membrane+recharge, all there is following defect in these techniques: in treating processes, all can produce concentrated solution and need recharge refuse landfill, cause follow-up percolate salinity, hard-degraded substance concentration to raise, increase follow-up percolate intractability, membrane lifetime is short, and running cost is high.In addition, because pollutent only circulates in landfill yard-percolation liquid treating system, can not thoroughly remove pollutent.
Summary of the invention
The object of the invention is to provides a kind of garbage leachate treatment process and treatment unit for the deficiencies in the prior art, process operations is easy, efficient, treatment unit is simple in structure, the percolate of the refuse pollution thing in refuse landfill can directly be introduced reverse osmosis membrane apparatus and process after filtering removal particulate matter, water outlet qualified discharge or reuse, and reclaim high dense ammonia nitrogen and make fertilizer, turning waste into wealth, economic benefit is high.
Object of the present invention realizes by following technical measures.
A garbage leachate treatment process, comprises the following steps:
Steps A, refuse leachate is introduced to strainer filter, remove the particulate matter in refuse leachate, obtain filtrate; Filter herein and adopt conventional filtration device, remove suspended substance or particulate matter in percolate;
Step B, filtrate is introduced to reverse osmosis membrane apparatus process, obtain producing water and high dense water;
Step C, to producing water, add appropriate denitrfying agent, obtain meeting the water purification of emission standard;
Step D, the dense water of height is introduced to struvite reactor, then to struvite reactor, add appropriate magnesium salts, MgO and phosphoric acid salt, reaction 1-30 minute, remove the most ammonia-nitrogen in high dense water, be precipitated thing and in the mixture of dense water, filter, obtain agricultural fertilizer and in dense water;
Step e, will in dense water by Coagulation Method, carry out coagulating treatment, the some organic pollutants in removal in dense water and ammonia nitrogen, obtain the mixture of throw out and low dense water, filters, and obtains mud and low dense water;
Step F, low dense water is introduced to biochemical facility process, obtain meeting the water purification of emission standard.
Permeable membrane in reverse osmosis membrane apparatus of the present invention is sro film, and sro film is the abbreviation of Super Reverse Osmosis membrane, is a kind of super reverse osmosis purified water technology.General reverse osmosis claims again reverse osmosis, a kind ofly take pressure difference as impellent, isolates the membrane sepn operation of solvent from solution.Feed liquid to film one side is exerted pressure, and when pressure surpasses its osmotic pressure, solvent can be made inverse osmosis against the direction of naturally osmotic.Thereby the solvent that obtains seeing through in the low-tension side of film, i.e. penetrating fluid (product water); High-tension side obtains concentrated solution, i.e. concentrated solution (dense water).
Magnesium salts of the present invention is MgCl
2or MgSO
4, phosphoric acid salt is Na
2hPO
4.
Coagulation Method is electric flocculence or the chemical coagulation process in conventional liquid waste disposal; Coagulation Method is called again coagulation clarification method, it is the isolation technique to insoluble state pollutent, finger is under the effect of coagulating agent, make colloid and trickle suspended substance in waste water be condensed into flocs unit, then give the water treating method that separation is removed, it both can reduce the sense index of the water quality such as turbidity, colourity of former water, can remove multiple hazardous contaminant again.
In chemical coagulation process, need the coagulating agent of using to have inorganic metallic salt and the large class of organic high molecular polymer two, the former mainly contains the high price metal-salts such as iron system and aluminium system, can be divided into common iron, aluminium salt and alkalization polysalt; Latter is divided into synthetic and natural two classes.
Biochemical facility of the present invention can be the biochemical pool, biochemistry pool etc., utilizes the dissolved oxygen in microorganism and water to decompose and self-cleaning low dense water.
Biochemical facility of the present invention is preferably biological pond, and biological pond also claims stabilization pond, for the treatment of the general designation in the pond of waste water.Be mainly the organism of stablizing in waste water, or utilize the natural self-purification capacity in pond, or borrow the natural self-purification capacity of the measures such as artificial aeration with strengthening pond.The self-purification of biological pond mainly relies on microorganism, and the existence of oxygen in water has conclusive impact to the microorganism in the water of the pool.Biological pond is often divided into anaerobic pond, facultative lagoon and oxidation pond accordingly.Adopt biological pond to process waste water, expense is generally lower, convenient management.
Wherein, in described step C, the volume ratio of described denitrfying agent and described product water is 1-100:1000.Produce water and can remove according to the ratio interpolation denitrfying agent of 0.1-1% the most ammonia nitrogens that produce in water, denitrfying agent consumption is few, and ammonia nitrogen removal is effective.
Preferably, in described step C, denitrfying agent is chloride denitrfying agent.Chloride denitrfying agent is dioxide peroxide or clorox.
Wherein, in described step D, add after magnesium salts, MgO and phosphoric acid salt, in high dense water, the ratio of the amount of substance of Mg:N:P is 1-1.5:1:1.Preferably, in described step D, the ratio of the magnesium salts in Mg and the amount of substance of MgO is 2-5:1.During use, before adding magnesium salts, MgO and phosphoric acid salt, get high dense water and carry out nitrogenous test, measure the nitrogen content in high dense water, and then drop into magnesium salts, MgO and phosphoric acid salt according to the ratio of the amount of above-mentioned substance.
Wherein, in described step B, the volume ratio of producing water and high dense water is 75-90:10-25.Preferably, the volume ratio of producing water and high dense water is 80:20, that is to say, percolate can obtain the product water of 80% volume and the dense water of height of 20% volume after reverse osmosis membrane apparatus is processed, and water production rate is large, and reverse osmosis is effective.
Wherein, in described step C, to producing after water adds denitrfying agent, stir 1-10 minute, then discharge.
Wherein, in described step C, after standing completing, to producing water, carry out sampling Detection, if produce water COD, be less than 60ppm, ammonia-nitrogen content is less than 5ppm, meet emission standard, can directly discharge or recycle, if produce water COD, be more than or equal to 60ppm, ammonia-nitrogen content be more than or equal to 5ppm, need again to producing water, to stir with standing, churning time is 1-5 minute, and time of repose is 10-15 minute, until product water COD and ammonia-nitrogen content are up to standard.
Wherein, the low dense water that also include step e 1 between described step e and described step F, step e is obtained is introduced advanced oxidation device and is carried out deep purifying.The ultraviolet ray that utilizes microwave frequency to cause impels airborne oxygen reaction in device to generate high-concentrated ozone, and the ozone of high density is carried out to sterilization and disinfection to low dense water.This advanced oxidation device inventor has proposed application for a patent for invention, and number of patent application is 201310038181.2, and the concrete structure of this advanced oxidation device is identical with this patent of invention with function, does not repeat them here.
Wherein, in described step D and described step e, the aperture of the filtering net that filter operation is used is 10-100 μ m.Preferably, the aperture of filtering net is 20-50 μ m.
A kind of garbage leachate treatment device, comprise for filtering the first strainer of percolate, reverse osmosis membrane apparatus, nitrogen rejection facility, struvite reactor, the second strainer, coagulator, the 3rd strainer and biological pond, the fluid inlet of described reverse osmosis membrane apparatus is connected with the liquid outlet of described the first strainer, described reverse osmosis membrane apparatus offers and produces water out and dense water out, producing water out is connected with described nitrogen rejection facility, dense water out is connected with described struvite reactor, described struvite reactor, described the second strainer, described coagulator, described the 3rd strainer is connected by pipeline successively with described biological pond.
Beneficial effect of the present invention is:
(1) percolate is first removed particulate matter through filter, then adopts reverse osmosis membrane apparatus processing to obtain respectively producing water and dense water, and product water COD index is up to standard.
(2) according to producing water ammonia nitrogen concentration, to producing water, add appropriate chloride denitrfying agent, producing water can direct discharge up to standard, and the consumption of denitrfying agent is few, and cost is low.In addition, to producing while adding denitrfying agent in water, without regulating, produce water temp, pH etc., can directly according to producing ammonia nitrogen concentration in water, add in right amount, operating procedure is simple.
(3) the dense water of height after reverse osmosis membrane apparatus processing is removed most ammonia-nitrogen by struvite reactor, and struvite throw out is carried out making agriculture fertilizer for plantations such as forest and flowers miniascapes after solid-liquid separation, turns waste into wealth, and economic benefit is high.
(4) the low dense water after Coagulation with Treatment enters biological pond again, and after processing, water outlet can be back to use the plantation waters such as forest and flowers miniascape.
(5) the present invention can carry out percolate processing for the refuse landfill of closing 10-20, percolate after filtration directly carries out osmotic treated through reverse osmosis membrane apparatus, before osmotic treated, do not need through aerobic treatment, anaerobic treatment, deamination, recharge, the pretreatment technology such as biological treatment, technique is simple, greatly reduce the construction cost of environmental protection and the running cost of sewage disposal, produce volume of water up to 75-90%.
(6) the water outlet COD of the product water after processing of the present invention is less than 30ppm, and ammonia nitrogen is less than 5ppm, can qualified discharge or reuse, and high dense water can obtain afforesting water after struvite reactor, Coagulation Method and biological pond are processed, technique of the present invention is simple, ripe, and zero pollutes, and environmental benefit is good.
(7) the low dense water after Coagulation with Treatment of the present invention carries out sterilization and disinfection through the inventor's advanced oxidation device, advanced oxidation device utilizes microwave generator to cause the first ultraviolet lamp and sends ultraviolet ray, this impels airborne oxygen reaction in device to generate high-concentrated ozone with the ultraviolet ray that microwave frequency causes, and the ozone of high density is transported to the dense water of centering in reaction zone and carry out sterilization and disinfection, simultaneously, the irradiate light of catalysis light source is to the photocatalyst photochemical catalysis carrier of reaction zone, in processing during dense water, photochemical catalysis carrier contains photocatalyst, water generates OH in dense water in catalysis under the light of photocatalyst catalysis light source, H
2o
2and O
2contour active substance goes decomposing organic pollutant kill bacteria virus, and sterilization rate is high, organic pollutant removal is effective.
Accompanying drawing explanation
The invention will be further described to utilize accompanying drawing, but embodiment in accompanying drawing does not form any limitation of the invention.
Fig. 1 is the first structural representation of a kind of garbage leachate treatment device of the present invention.
Fig. 2 is the second structural representation of a kind of garbage leachate treatment device of the present invention.
In Fig. 1 and Fig. 2, include:
1---first strainer 2---reverse osmosis membrane apparatus
3---nitrogen rejection facility 4---struvite reactor
5---second strainer 6---coagulator
7---the 3rd strainer 8---biological pond
9---advanced oxidation device.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated, and this is preferred embodiment of the present invention.
embodiment 1.
A kind of garbage leachate treatment process of the present embodiment, comprises the following steps:
Steps A, refuse leachate is introduced to strainer filter, remove the particulate matter in refuse leachate, obtain filtrate;
Step B, filtrate is introduced to reverse osmosis membrane apparatus process, obtain the product water of 75% volume and the dense water of height of 25% volume;
Step C, to producing water, add appropriate chloride denitrfying agent, obtain meeting the water purification of emission standard; Chloride denitrfying agent is 1:1000 with the volume ratio of producing water; To producing after water adds denitrfying agent, stir 10 minutes, to producing water, carry out sampling Detection, if produce water COD, be less than 60ppm, ammonia-nitrogen content is less than 5ppm, meet emission standard, can directly discharge or recycle, if produce water COD, be more than or equal to 60ppm, ammonia-nitrogen content be more than or equal to 5ppm, need again to producing water, to stir with standing, churning time is 5 minutes, and time of repose is 15 minutes, until product water COD and ammonia-nitrogen content are up to standard;
Step D, the dense water of height is introduced to struvite reactor, get high dense water and carry out nitrogenous test, measure the nitrogen content in high dense water, then to struvite reactor, add appropriate magnesium salts, MgO and phosphoric acid salt, the ratio that makes the amount of substance of Mg:N:P in high dense water is 1:1:1, the ratio of the magnesium salts in Mg and the amount of substance of MgO is 2:1, react 1 minute, remove the most ammonia-nitrogen in high dense water, be precipitated thing and in the mixture of dense water, filter, obtain agricultural fertilizer and in dense water; The aperture of the filtering net that filter operation is used is 15 μ m;
Step e, will in dense water by Coagulation Method, carry out coagulating treatment, the some organic pollutants in removal in dense water and ammonia nitrogen, obtain the mixture of throw out and low dense water, filters, and obtains mud and low dense water; The aperture of the filtering net that filter operation is used is 10 μ m;
Step F, low dense water is introduced to biochemical facility process, obtain meeting the water purification of emission standard.
As shown in Figure 1, a kind of garbage leachate treatment device, comprise for filtering the first strainer 1 of percolate, reverse osmosis membrane apparatus 2, nitrogen rejection facility 3, struvite reactor 4, the second strainer 5, coagulator 6, the 3rd strainer 7 and biological pond 8, the fluid inlet of described reverse osmosis membrane apparatus 2 is connected with the liquid outlet of described the first strainer 1, described reverse osmosis membrane apparatus 2 offers and produces water out and dense water out, producing water out is connected with described nitrogen rejection facility 3, dense water out is connected with described struvite reactor 4, described struvite reactor 4, described the second strainer 5, described coagulator 6, described the 3rd strainer 7 is connected by pipeline successively with described biological pond 8.
During use, refuse leachate is introduced to the first strainer 1 and filter, remove the particulate matter in refuse leachate, obtain filtrate; Then, filtrate is introduced to reverse osmosis membrane apparatus 2 and process, obtain producing water and high dense water; Produce water and enter after nitrogen rejection facility 3 processing through producing water out, obtain meeting the water purification of emission standard; High dense water, after overrich water out enters struvite reactor 4 and processes, is removed the most ammonia-nitrogen in high dense water, be precipitated thing and in dense water mixture; Utilize 5 pairs of throw outs of the second strainer and in dense water mixture filter, obtain agricultural fertilizer and in dense water; In inciting somebody to action, dense water carries out coagulating treatment by coagulator 6 again, and the some organic pollutants in removal in dense water and ammonia nitrogen, obtain throw out and low dense water mixture, utilizes the 3rd strainer 7 to filter, and obtains mud and low dense water; Finally, low dense water is introduced to biochemical facility 8 and process, obtain meeting the water purification of emission standard.The present invention is simple in structure, the percolate of the refuse pollution thing in refuse landfill can directly be introduced reverse osmosis membrane apparatus 2 and process after filtering removal particulate matter, water outlet qualified discharge or reuse, and reclaim high dense ammonia nitrogen and make fertilizer, turn waste into wealth, economic benefit is high.
The reverse osmosis membrane apparatus 2 of the present embodiment comprises shell and is arranged at the filtering membrane core in shell, filtering membrane core comprises centibar, some filtration membranes and some flow guiding discs, filtration membrane and flow guiding disc are stacked alternately, and centibar is through the filtration membrane being stacked alternately, the central authorities of flow guiding disc.Percolate enters after reverse osmosis membrane apparatus 2, through the guide functions of flow guiding disc, by filtration membrane, carries out filtration treatment, the product water obtaining after several times circular treatment and dense water, and reverse osmosis membrane apparatus 2 is simple in structure, good filtration effect.
The aperture of the filtering net of first strainer 1 of the present embodiment, described the second strainer 5 and described the 3rd strainer 7 is 10-100 μ m.Strainer of the present invention is the conventional filtration device of this area, for removing suspended substance or the particulate matter of percolate.Preferably, the aperture of the filtering net of described the first strainer 1, described the second strainer 5 and described the 3rd strainer 7 is 20-50 μ m, guarantees that suspended substance or particulate matter can effectively remove, and treatment effect is good.
The aperture of the filtering net of first strainer 1 of the present embodiment, described the second strainer 5 and described the 3rd strainer 7 reduces successively.Preferably, the aperture of the filtering net of described the first strainer 1, described the second strainer 5 and described the 3rd strainer 7 is respectively 50 μ m, 30 μ m and 20 μ m.
In first strainer 1 of the present embodiment, described the second strainer 5 and described the 3rd strainer 7, being provided with bed filtration net, successively decreases according to the flow direction of refuse leachate in the aperture of bed filtration net.Guarantee to filter each time and all liquid to be filtered can be carried out to solid-liquid separation, working accuracy is high, efficient recovery solid waste.
embodiment 2.
A kind of garbage leachate treatment process of the present embodiment, comprises the following steps:
Steps A, refuse leachate is introduced to strainer filter, remove the particulate matter in refuse leachate, obtain filtrate;
Step B, filtrate is introduced to reverse osmosis membrane apparatus process, obtain the product water of 80% volume and the dense water of height of 20% volume;
Step C, to producing water, add appropriate chloride denitrfying agent, obtain meeting the water purification of emission standard; Chloride denitrfying agent is 10:1000 with the volume ratio of producing water; To producing after water adds denitrfying agent, stir 5 minutes, to producing water, carry out sampling Detection, if produce water COD, be less than 60ppm, ammonia-nitrogen content is less than 5ppm, meet emission standard, can directly discharge or recycle, if produce water COD, be more than or equal to 60ppm, ammonia-nitrogen content be more than or equal to 5ppm, need again to producing water, to stir with standing, churning time is 3 minutes, and time of repose is 13 minutes, until product water COD and ammonia-nitrogen content are up to standard;
Step D, the dense water of height is introduced to struvite reactor, get high dense water and carry out nitrogenous test, measure the nitrogen content in high dense water, then to struvite reactor, add appropriate magnesium salts, MgO and phosphoric acid salt, the ratio that makes the amount of substance of Mg:N:P in high dense water is 1.1:1:1, the ratio of the magnesium salts in Mg and the amount of substance of MgO is 3:1, react 5 minutes, remove the most ammonia-nitrogen in high dense water, be precipitated thing and in the mixture of dense water, filter, obtain agricultural fertilizer and in dense water; The aperture of the filtering net that filter operation is used is 30 μ m;
Step e, will in dense water by Coagulation Method, carry out coagulating treatment, the some organic pollutants in removal in dense water and ammonia nitrogen, obtain the mixture of throw out and low dense water, filters, and obtains mud and low dense water; The aperture of the filtering net that filter operation is used is 25 μ m;
Step F, low dense water is introduced to biochemical facility process, obtain meeting the water purification of emission standard.
The structure of the garbage leachate treatment device of the present embodiment is identical with the garbage leachate treatment device of principle of work and embodiment 1, repeats no more here.
embodiment 3.
A kind of garbage leachate treatment process of the present embodiment, comprises the following steps:
Steps A, refuse leachate is introduced to strainer filter, remove the particulate matter in refuse leachate, obtain filtrate;
Step B, filtrate is introduced to reverse osmosis membrane apparatus process, obtain the product water of 85% volume and the dense water of height of 15% volume;
Step C, to producing water, add appropriate chloride denitrfying agent, obtain meeting the water purification of emission standard; Chloride denitrfying agent is 50:1000 with the volume ratio of producing water; To producing after water adds denitrfying agent, stir 3 minutes, to producing water, carry out sampling Detection, if produce water COD, be less than 60ppm, ammonia-nitrogen content is less than 5ppm, meet emission standard, can directly discharge or recycle, if produce water COD, be more than or equal to 60ppm, ammonia-nitrogen content be more than or equal to 5ppm, need again to producing water, to stir with standing, churning time is 2.5 minutes, and time of repose is 12 minutes, until product water COD and ammonia-nitrogen content are up to standard;
Step D, the dense water of height is introduced to struvite reactor, get high dense water and carry out nitrogenous test, measure the nitrogen content in high dense water, then to struvite reactor, add appropriate magnesium salts, MgO and phosphoric acid salt, the ratio that makes the amount of substance of Mg:N:P in high dense water is 1.5:1:1, the ratio of the magnesium salts in Mg and the amount of substance of MgO is 4:1, react 10 minutes, remove the most ammonia-nitrogen in high dense water, be precipitated thing and in the mixture of dense water, filter, obtain agricultural fertilizer and in dense water; The aperture of the filtering net that filter operation is used is 60 μ m;
Step e, will in dense water by Coagulation Method, carry out coagulating treatment, the some organic pollutants in removal in dense water and ammonia nitrogen, obtain the mixture of throw out and low dense water, filters, and obtains mud and low dense water; The aperture of the filtering net that filter operation is used is 50 μ m;
Step F, low dense water is introduced to biochemical facility process, obtain meeting the water purification of emission standard.
The structure of the garbage leachate treatment device of the present embodiment is identical with the garbage leachate treatment device of principle of work and embodiment 1, repeats no more here.
embodiment 4.
A kind of garbage leachate treatment process of the present embodiment, comprises the following steps:
Steps A, refuse leachate is introduced to strainer filter, remove the particulate matter in refuse leachate, obtain filtrate;
Step B, filtrate is introduced to reverse osmosis membrane apparatus process, obtain the product water of 90% volume and the dense water of height of 10% volume;
Step C, to producing water, add appropriate chloride denitrfying agent, obtain meeting the water purification of emission standard; Chloride denitrfying agent is 100:1000 with the volume ratio of producing water; To producing after water adds denitrfying agent, stir 1 minute, to producing water, carry out sampling Detection, if produce water COD, be less than 60ppm, ammonia-nitrogen content is less than 5ppm, meet emission standard, can directly discharge or recycle, if produce water COD, be more than or equal to 60ppm, ammonia-nitrogen content be more than or equal to 5ppm, need again to producing water, to stir with standing, churning time is 1 minute, and time of repose is 10 minutes, until product water COD and ammonia-nitrogen content are up to standard;
Step D, the dense water of height is introduced to struvite reactor, get high dense water and carry out nitrogenous test, measure the nitrogen content in high dense water, then to struvite reactor, add appropriate magnesium salts, MgO and phosphoric acid salt, the ratio that makes the amount of substance of Mg:N:P in high dense water is 1.3:1:1, the ratio of the magnesium salts in Mg and the amount of substance of MgO is 5:1, react 30 minutes, remove the most ammonia-nitrogen in high dense water, be precipitated thing and in the mixture of dense water, filter, obtain agricultural fertilizer and in dense water; The aperture of the filtering net that filter operation is used is 100 μ m;
Step e, will in dense water by Coagulation Method, carry out coagulating treatment, the some organic pollutants in removal in dense water and ammonia nitrogen, obtain the mixture of throw out and low dense water, filters, and obtains mud and low dense water; The aperture of the filtering net that filter operation is used is 80 μ m;
Step F, low dense water is introduced to biochemical facility process, obtain meeting the water purification of emission standard.
The structure of the garbage leachate treatment device of the present embodiment is identical with the garbage leachate treatment device of principle of work and embodiment 1, repeats no more here.
embodiment 5.
The difference of the present embodiment and embodiment 1-4 is: the low dense water that the present embodiment also includes step e 1 between described step e and described step F, obtain step e is introduced advanced oxidation device and carried out deep purifying, the ultraviolet ray that utilizes the microwave frequency in sterilization and disinfection device to cause impels airborne oxygen reaction in device to generate high-concentrated ozone, and the ozone of high density is carried out to sterilization and disinfection to low dense water.
As shown in Figure 2, the garbage leachate treatment device difference of the garbage leachate treatment device of the present embodiment and embodiment 1-4 is: between the 3rd strainer 7 of the present embodiment and described biological pond 8, be provided with advanced oxidation device 9.
The advanced oxidation device 9 of the present embodiment comprises housing, liquid-inlet pipe, photochemical catalysis carrier, catalysis light source and UV ozone producer, in housing, be provided with reaction zone, housing is provided with fluid inlet and the liquid outlet being communicated with reaction zone, liquid-inlet pipe is transported to reaction zone by the liquid of required processing by fluid inlet, photochemical catalysis carrier is positioned at reaction zone, and the irradiate light of catalysis light source is to photochemical catalysis carrier, and the ozone that UV ozone generating unit produces is transported to reaction zone.
The ultraviolet ray that utilizes microwave frequency to cause impels the interior airborne oxygen reaction of advanced oxidation device 9 to generate high-concentrated ozone, and the ozone of high density is carried out to sterilization and disinfection to low dense water.
The rest part of the present embodiment is identical with embodiment 1-4, repeats no more here.
Finally should be noted that; above embodiment is only in order to illustrate technical scheme of the present invention; but not limiting the scope of the invention; although the present invention has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement technical scheme of the present invention, and not depart from essence and the scope of technical solution of the present invention.
Claims (8)
1. a garbage leachate treatment process, is characterized in that, comprises the following steps:
Steps A, refuse leachate is introduced to strainer filter, remove the particulate matter in refuse leachate, obtain filtrate;
Step B, filtrate is introduced to reverse osmosis membrane apparatus process, obtain producing water and high dense water;
Step C, to producing water, add appropriate denitrfying agent, obtain meeting the water purification of emission standard;
Step D, the dense water of height is introduced to struvite reactor, then to struvite reactor, add appropriate magnesium salts, MgO and phosphoric acid salt, reaction 1-30 minute, remove the most ammonia-nitrogen in high dense water, be precipitated thing and in the mixture of dense water, filter, obtain agricultural fertilizer and in dense water;
Step e, will in dense water by Coagulation Method, carry out coagulating treatment, the some organic pollutants in removal in dense water and ammonia nitrogen, obtain the mixture of throw out and low dense water, filters, and obtains mud and low dense water;
Step F, low dense water is introduced to biochemical facility process, obtain meeting the water purification of emission standard.
2. a kind of garbage leachate treatment process according to claim 1, is characterized in that: in described step C, the volume ratio of described denitrfying agent and described product water is 1-100:1000.
3. a kind of garbage leachate treatment process according to claim 1, is characterized in that: in described step D, add after magnesium salts, MgO and phosphoric acid salt, in high dense water, the ratio of the amount of substance of Mg:N:P is 1-1.5:1:1.
4. a kind of garbage leachate treatment process according to claim 1, is characterized in that: in described step D, the ratio of the magnesium salts in Mg and the amount of substance of MgO is 2-5:1.
5. a kind of garbage leachate treatment process according to claim 1, is characterized in that: in described step B, the volume ratio of producing water and high dense water is 75-90:10-25.
6. a kind of garbage leachate treatment process according to claim 1, is characterized in that: in described step C, to producing after water adds denitrfying agent, stir 1-10 minute, then discharge.
7. a kind of garbage leachate treatment process according to claim 1, is characterized in that: the low dense water that also include step e 1 between described step e and described step F, step e is obtained is introduced advanced oxidation device and carried out deep purifying.
8. a garbage leachate treatment device, it is characterized in that: comprise for filtering the first strainer of percolate, reverse osmosis membrane apparatus, nitrogen rejection facility, struvite reactor, the second strainer, coagulator, the 3rd strainer and biological pond, the fluid inlet of described reverse osmosis membrane apparatus is connected with the liquid outlet of described the first strainer, described reverse osmosis membrane apparatus offers and produces water out and dense water out, producing water out is connected with described nitrogen rejection facility, dense water out is connected with described struvite reactor, described struvite reactor, described the second strainer, described coagulator, described the 3rd strainer is connected by pipeline successively with described biological pond.
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| CN201410192212.4A CN103951141B (en) | 2014-05-08 | 2014-05-08 | A kind of garbage leachate treatment process and treatment unit |
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| CN201410192212.4A CN103951141B (en) | 2014-05-08 | 2014-05-08 | A kind of garbage leachate treatment process and treatment unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109385287A (en) * | 2018-11-22 | 2019-02-26 | 大连理工大学 | It is a kind of based on biological dewatered and automatically cleaning pyrolytic technique organic waste full constituent recycling treatment process |
| CN111302552A (en) * | 2020-03-09 | 2020-06-19 | 广州市环境保护工程设计院有限公司 | Landfill leachate concentrated solution resource utilization system and method |
| CN114835354A (en) * | 2022-06-30 | 2022-08-02 | 北京博泰至淳生物科技有限公司 | Recycling treatment process for brewing wastewater |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708919A (en) * | 2009-11-16 | 2010-05-19 | 北京大学深圳研究生院 | Method for treating leachate in refuse landfill site |
| WO2011143775A1 (en) * | 2010-05-18 | 2011-11-24 | Ostara Nutrient Recovery Technologies Inc. | Treatment of phosphate-containing wastewater |
| CN102786183A (en) * | 2012-03-29 | 2012-11-21 | 波鹰(厦门)科技有限公司 | Method for processing garbage leachate |
| CN203048745U (en) * | 2013-01-23 | 2013-07-10 | 乐清腾祥膜技术有限公司 | Garbage penetrating liquid treatment device |
| CN203959993U (en) * | 2014-05-08 | 2014-11-26 | 东莞市环境科学研究所 | A kind of garbage leachate treatment device |
-
2014
- 2014-05-08 CN CN201410192212.4A patent/CN103951141B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101708919A (en) * | 2009-11-16 | 2010-05-19 | 北京大学深圳研究生院 | Method for treating leachate in refuse landfill site |
| WO2011143775A1 (en) * | 2010-05-18 | 2011-11-24 | Ostara Nutrient Recovery Technologies Inc. | Treatment of phosphate-containing wastewater |
| CN102786183A (en) * | 2012-03-29 | 2012-11-21 | 波鹰(厦门)科技有限公司 | Method for processing garbage leachate |
| CN203048745U (en) * | 2013-01-23 | 2013-07-10 | 乐清腾祥膜技术有限公司 | Garbage penetrating liquid treatment device |
| CN203959993U (en) * | 2014-05-08 | 2014-11-26 | 东莞市环境科学研究所 | A kind of garbage leachate treatment device |
Non-Patent Citations (1)
| Title |
|---|
| 吴彦瑜: ""Fenton氧化和MAP化学沉淀工艺深度处理垃圾渗滤液"", 《中国博士学位论文全文数据库》, 26 October 2011 (2011-10-26) * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109385287A (en) * | 2018-11-22 | 2019-02-26 | 大连理工大学 | It is a kind of based on biological dewatered and automatically cleaning pyrolytic technique organic waste full constituent recycling treatment process |
| CN109385287B (en) * | 2018-11-22 | 2021-05-07 | 大连理工大学 | Organic garbage full-component recycling treatment process based on biological drying and self-cleaning pyrolysis technology |
| CN111302552A (en) * | 2020-03-09 | 2020-06-19 | 广州市环境保护工程设计院有限公司 | Landfill leachate concentrated solution resource utilization system and method |
| CN114835354A (en) * | 2022-06-30 | 2022-08-02 | 北京博泰至淳生物科技有限公司 | Recycling treatment process for brewing wastewater |
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