CN115433025B - Recovery device for urine nutrient substances - Google Patents
Recovery device for urine nutrient substances Download PDFInfo
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- CN115433025B CN115433025B CN202210892979.2A CN202210892979A CN115433025B CN 115433025 B CN115433025 B CN 115433025B CN 202210892979 A CN202210892979 A CN 202210892979A CN 115433025 B CN115433025 B CN 115433025B
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- 210000002700 urine Anatomy 0.000 title claims abstract description 122
- 238000011084 recovery Methods 0.000 title claims abstract description 72
- 235000015097 nutrients Nutrition 0.000 title claims abstract description 39
- 239000000126 substance Substances 0.000 title abstract description 24
- 239000000945 filler Substances 0.000 claims abstract description 118
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 70
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 38
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 38
- 239000011574 phosphorus Substances 0.000 claims abstract description 38
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 72
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 36
- 239000002245 particle Substances 0.000 claims description 20
- 229910021536 Zeolite Inorganic materials 0.000 claims description 19
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 19
- 239000010457 zeolite Substances 0.000 claims description 19
- 239000002689 soil Substances 0.000 claims description 16
- 239000004576 sand Substances 0.000 claims description 6
- 239000002028 Biomass Substances 0.000 claims description 5
- 229960000892 attapulgite Drugs 0.000 claims description 3
- 229910052625 palygorskite Inorganic materials 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 238000001179 sorption measurement Methods 0.000 abstract description 15
- 238000000034 method Methods 0.000 description 12
- 239000003337 fertilizer Substances 0.000 description 5
- 239000007788 liquid Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N octadec-9-enoic acid Chemical compound CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 3
- 230000009965 odorless effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000002848 electrochemical method Methods 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- 238000005185 salting out Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000010000 carbonizing Methods 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- -1 haydite Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F3/00—Fertilisers from human or animal excrements, e.g. manure
- C05F3/06—Apparatus for the manufacture
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The invention relates to the technical field of urine treatment, and provides a recovery device for urine nutrient substances, which comprises: the first recovery unit comprises a first chamber, a second chamber and a third chamber; the first chamber is used for filling the first filler, the second chamber is used for filling the second filler, and the third chamber is used for filling the third filler; the urine inlet is communicated with the first chamber, the first chamber is communicated with the second chamber, the second chamber is communicated with the third chamber, and the third chamber is communicated with the urine outlet; the first filler, the second filler and the third filler are used for sequentially adsorbing and recovering nitrogen and phosphorus in urine; the invention conveniently realizes the recovery of nutrient substances in urine in a gradual adsorption mode.
Description
Technical Field
The invention relates to the technical field of urine treatment, in particular to a recovery device for urine nutrient substances.
Background
The urine contains partial nutrient substances, and the nutrient substances are recycled as fertilizer to replace partial fertilizer, so that the consumption of the fertilizer can be reduced, and the resource utilization is realized.
The existing recovery method of nutrient substances in urine comprises a concentration dehydration method, an electrochemical method and a precipitation crystallization method, wherein the concentration dehydration method and the electrochemical method have higher cost and the precipitation crystallization method has more complicated operation.
Disclosure of Invention
The invention provides a recovery device for urine nutrient substances, which is used for solving or improving the problems of high cost and complicated operation existing in the existing process of recovering the nutrient substances in urine.
The invention provides a recovery device for urine nutrient substances, comprising: a first recovery unit, the first recovery unit comprising: a first chamber, a second chamber, and a third chamber; the first chamber is used for filling first filler, the second chamber is used for filling second filler, and the third chamber is used for filling third filler; the urine inlet is communicated with the first chamber, the first chamber is communicated with the second chamber, the second chamber is communicated with the third chamber, and the third chamber is communicated with the urine outlet; the first filler, the second filler and the third filler are used for sequentially adsorbing and recovering nitrogen and phosphorus in urine.
According to the recovery device for urine nutrient provided by the invention, the first recovery unit further comprises: the first box body, the first baffle plate and the second baffle plate; the first baffle plate and the second baffle plate are arranged in the first box body at intervals along the width direction of the first box body; one end of the first baffle is connected with the bottom of the first box body, the other end of the first baffle extends towards the top of the first box body, and a first gap is formed between the other end of the first baffle and the top of the first box body; one end of the second baffle is connected with the box top, the other end of the second baffle extends towards the box bottom, and a second gap is formed between the other end of the second baffle and the box bottom; the first side surface of the first baffle plate and the inner side wall of the first box body form a first cavity, the second side surface of the first baffle plate, the first side surface of the second baffle plate and the inner side wall of the first box body form a second cavity, and the second side surface of the second baffle plate and the inner side wall of the first box body form a third cavity; the urine inlet is arranged close to the bottom of the tank, and the urine outlet is arranged close to the top of the tank.
According to the recovery device for urine nutrient provided by the invention, the first box body comprises: the first box body and the first cover plate; the first cover plate is covered at the open end of the first box body, and the box top is formed on the first cover plate.
According to the recovery device for the urine nutrient substances, the first accommodating cavity is formed in the first cover plate, the plurality of first through holes are formed in one side, facing the first box body, of the first cover plate, the plurality of first through holes are respectively communicated with the first accommodating cavity, and active carbon is filled in the first accommodating cavity.
According to the recovery device for the urine nutrient provided by the invention, the recovery device for the urine nutrient further comprises: a second recovery unit; the second recovery unit includes: the device comprises a second box body, a water distribution layer, a treatment layer and a water outlet layer; the water distribution layer, the treatment layer and the water outlet layer are arranged in the second box body, and the water distribution layer, the treatment layer and the water outlet layer are sequentially arranged from top to bottom along the height direction of the second box body; the second box body is provided with a water inlet pipeline and a water outlet pipeline, one end of the water inlet pipeline is communicated with the urine outlet, and the other end of the water inlet pipeline extends into the water distribution layer; one end of the water outlet pipeline extends into the water outlet layer, and the other end of the water outlet pipeline extends out of the second box body.
According to the recovery device for urine nutrient provided by the invention, the second box body comprises: the second box body and the second cover plate; the second apron lid is located the uncovered end of second box body, be equipped with the second in the second apron and hold the chamber, the second apron orientation one side of second box body is equipped with a plurality of second through-holes, a plurality of the second through-hole respectively with the second holds the chamber intercommunication, the second holds the intracavity and is used for filling activated carbon.
According to the recovery device for the urine nutrient substances, the filler of the water distribution layer comprises gravel, sand, ceramsite and plastic particles; the particle size range of the filler of the water distribution layer is 5mm to 15mm; the filler of the treatment layer comprises soil and biochar, or the filler of the treatment layer comprises soil, biochar and zeolite; the particle size of the filler of the treatment layer ranges from 0.5mm to 5mm; the filler of the water outlet layer comprises gravel, sand stone, ceramsite and plastic particles; the particle size of the filler of the water outlet layer ranges from 0.5mm to 5mm.
According to the recovery device for the urine nutrient substances, the mass of the soil in the treatment layer accounts for 60-85% of the total mass of the treatment layer; in the case where the filler of the treatment layer includes the soil, the biochar, and the zeolite, the mass ratio of the biochar to the zeolite ranges from 1 to 10.
According to the recovery device for the urine nutrient substances, the thickness range of the water distribution layer along the height direction of the second box body is 2cm to 10cm; the thickness range of the water outlet layer along the height direction of the second box body is 2cm to 10cm.
According to the recovery device for urine nutrient provided by the invention, the first filler comprises biomass or biochar; the proportion of the volume of the first filler in the first chamber to the total volume of the first chamber is in the range of 50% to 100%; the second filler comprises any one of biochar, activated carbon and attapulgite; the proportion of the volume of the second filler in the second chamber to the total volume of the second chamber is in the range of 50% to 100%; the third filler comprises any one of biochar, activated carbon and zeolite; the volume of the third filler in the third chamber ranges from 50% to 100% of the total volume of the third chamber.
According to the recovery device for the urine nutrient substances, provided by the invention, the first recovery unit is arranged to fully adsorb and recover nitrogen and phosphorus in urine; the urine is introduced into the first cavity through the urine inlet, the first filler in the first cavity is used for carrying out preliminary adsorption on nitrogen and phosphorus in the urine, the urine absorbed by the first filler enters the second cavity, the second filler in the second cavity is used for carrying out secondary adsorption on the nitrogen and the phosphorus in the urine, the urine absorbed by the second filler enters the third cavity, and the third filler in the third cavity is used for carrying out secondary adsorption on the nitrogen and the phosphorus in the urine, so that gradual adsorption recovery of the nitrogen and the phosphorus in the urine is realized, the nitrogen and the phosphorus can be fully adsorbed, the adsorption rate of the nitrogen and the phosphorus is improved, the first filler, the second filler and the third filler after saturation are used as fertilizers to be directly returned to the field, the method for recovering the nutrient substances by utilizing the adsorption is easy to operate, the cost is lower, and the nutrient substances are stored in a solid mode, and compared with the traditional urine storage barrel, the method is easier to store, transport and utilize.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the recovery device for urine nutrient provided by the invention;
Reference numerals:
1: a first recovery unit; 11: a first chamber; 12: a second chamber; 13: a third chamber; 14: a urine inlet; 15: a urine outlet; 16: a first case; 161: a first case body; 162: a first cover plate; 17: a first baffle; 18: a second baffle; 2: a second recovery unit; 21: a second case; 211: a second case body; 212: a second cover plate; 22: a water distribution layer; 23: a treatment layer; 24: a water outlet layer; 25: a water inlet pipeline; 26: and a water outlet pipeline.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In describing embodiments of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present invention will be understood in detail by those of ordinary skill in the art.
The following describes a recovery device for urine nutrient provided by the present invention with reference to fig. 1.
As shown in fig. 1, the recovery device for urine nutrient shown in this embodiment includes: the first recovery unit 1, the first recovery unit 1 includes a first chamber 11, a second chamber 12, and a third chamber 13.
The first chamber 11 is used for filling the first filler, the second chamber 12 is used for filling the second filler, and the third chamber 13 is used for filling the third filler; the urine inlet 14 is communicated with the first chamber 11, the first chamber 11 is communicated with the second chamber 12, the second chamber 12 is communicated with the third chamber 13, and the third chamber 13 is communicated with the urine outlet 15; wherein, the first filler, the second filler and the third filler are used for absorbing and recovering nitrogen and phosphorus in urine in sequence.
Specifically, the recovery device for urine nutrient shown in the present embodiment is configured to sufficiently adsorb and recover nitrogen and phosphorus in urine by providing the first recovery unit 1; the urine is introduced into the first chamber 11 through the urine inlet 14, nitrogen and phosphorus in the urine are primarily adsorbed by the first filler in the first chamber 11, the urine absorbed by the first filler enters the second chamber 12, the nitrogen and phosphorus in the urine are secondarily adsorbed by the second filler in the second chamber 12, the nitrogen and phosphorus in the urine are secondarily adsorbed by the third filler in the third chamber 13, namely, the gradual adsorption recovery of the nitrogen and the phosphorus in the urine is realized, the nitrogen and the phosphorus can be fully adsorbed, the adsorption rate of the nitrogen and the phosphorus is improved, the first filler, the second filler and the third filler after saturation of adsorption can be used as fertilizer to be directly returned to the field, the method for recovering the nutrient substances by utilizing the adsorption is easy and convenient to operate, the cost is lower, and the nutrient substances are stored in a solid mode, compared with the traditional urine storage barrel, the storage, the transportation and the utilization are easier.
In some embodiments, as shown in fig. 1, the first recovery unit 1 shown in this embodiment further includes: a first tank 16, a first baffle 17 and a second baffle 18; the first baffle 17 and the second baffle 18 are disposed in the first casing 16 at intervals along the width direction of the first casing 16; one end of the first baffle 17 is connected with the bottom of the first box 16, the other end of the first baffle 17 extends towards the top of the first box 16, and a first gap is formed between the other end of the first baffle 17 and the top of the first box; one end of the second baffle plate 18 is connected with the tank top, the other end of the second baffle plate 18 extends towards the tank bottom, and a second gap is formed between the other end of the second baffle plate 18 and the tank bottom; the first side surface of the first baffle 17 and the inner side wall of the first box 16 enclose a first chamber 11, the second side surface of the first baffle 17, the first side surface of the second baffle 18 and the inner side wall of the first box 16 enclose a second chamber 12, and the second side surface of the second baffle 18 and the inner side wall of the first box 16 enclose a third chamber 13; the urine inlet 14 is arranged near the bottom of the tank and the urine outlet 15 is arranged near the top of the tank.
Specifically, urine is pumped into the first chamber 11 through the urine inlet 14 by the water pump, the urine liquid level in the first chamber 11 gradually rises, and meanwhile, the first filler primarily adsorbs nitrogen and phosphorus in the urine; when the liquid level in the first chamber 11 rises to the upper edge of the first baffle plate 17, urine flows into the second chamber 12 through a first gap between the first baffle plate 17 and the tank top and flows towards the tank bottom under the action of gravity, and at the same time, nitrogen and phosphorus in the urine are secondarily adsorbed by the second filler; the urine flowing to the bottom of the tank flows into the third chamber 13 through the second gap between the second baffle plate 18 and the bottom of the tank, the liquid level of the urine in the third chamber 13 gradually rises, at the same time, the third filler adsorbs nitrogen and phosphorus in the urine again, and after the liquid level of the urine in the third chamber rises to the urine outlet 15, the urine is discharged out of the first tank 16 through the urine outlet 15; thereby realize that the urine in the first box 16 is the zigzag flow along the width direction of first box 16, increased the flowing distance of urine, prolonged the flow duration of urine in first box 16 for nitrogen and phosphorus in the urine can obtain abundant absorption, and then promoted the rate of recovery of nutrient substance in the urine.
The width of the first casing 16 is from left to right in fig. 1.
In some embodiments, the first filler comprises biomass or biochar; the proportion of the volume of the first filler in the first chamber 11 to the total volume of the first chamber 11 ranges from 50% to 100%, i.e. the filling proportion of the first filler may be 50%, 65%, 75%, 85% or 100%; the second filler comprises any one of biochar, activated carbon and attapulgite; the proportion of the volume of the second filler in the second chamber 12 to the total volume of the second chamber 12 ranges from 50% to 100%, i.e. the proportion of the second filler may be 50%, 65%, 75%, 85% or 100%; the third filler includes any one of biochar, activated carbon, and zeolite; the proportion of the volume of the third filler in the third chamber 13 to the total volume of the third chamber 13 ranges from 50% to 100%, i.e. the packing proportion of the third filler may be 50%, 65%, 75%, 85% or 100%.
Specifically, the biochar is formed by carbonizing biomass, wherein the biomass comprises straw, sawdust, rice hulls and the like; the first filler is used for primarily adsorbing nitrogen and phosphorus in urine, the second filler is used for mainly adsorbing nitrogen in urine, and the third filler is used for mainly adsorbing phosphorus in urine, namely the second filler and the third filler are used for respectively adsorbing nitrogen and phosphorus; because the contents of nitrogen and phosphorus in urine are high, the adsorption of phosphorus is not facilitated, and the third filler is arranged at the back, so that the adsorption rate of phosphorus is improved, and the recovery rate of nutrient substances is further improved; the main functions of the biochar and the activated carbon are to remove nitrogen and phosphorus, and also to deodorize and decolorize, and the main function of the zeolite is to recover phosphorus.
In the actual recycling process, the second chamber 12 may be filled with the third filler, and the third chamber 13 may be filled with the second filler, that is, after being adsorbed by the first filler, the first main part adsorbs phosphorus and then main part adsorbs nitrogen, and the applicant has carried out a comparison test on the two filling modes through a test in the developing process, and the test result shows that the nutrient recovery rate of the first filling mode is higher, that is, the second filler is filled in the second chamber 12, and the third filler is filled in the third chamber 13, so that after urine is adsorbed by the first filler, the first main part adsorbs nitrogen and the second main part adsorbs phosphorus.
The first filler, the second filler and the third filler are easy to obtain, and the cost is low, so that the recovery device for the urine nutrient substances can be suitable for rural areas.
In some embodiments, as shown in fig. 1, the first casing 16 shown in this embodiment includes: the first case body 161 and the first cover 162; the first cover 162 covers the open end of the first case body 161, and the case top is formed on the first cover 162.
Specifically, the first cover 162 is provided, so that the filling operation and the taking-out operation of the first filler, the second filler and the third filler are facilitated.
In some embodiments, a first accommodating cavity is disposed in the first cover plate 162 shown in this embodiment, a plurality of first through holes are disposed on a side of the first cover plate 162 facing the first box body 161, and the plurality of first through holes are respectively communicated with the first accommodating cavity, and the first accommodating cavity is used for filling activated carbon.
Specifically, the first cover plate 162 is hollow, and the activated carbon is filled in the first cover plate 162, so that the peculiar smell of urine can be adsorbed by the activated carbon through the first through hole, and the peculiar smell of urine at the urine outlet 15 is reduced.
In some embodiments, as shown in fig. 1, the recovery device for urine nutrient shown in this embodiment further includes: a second recovery unit 2; the second recovery unit 2 includes: the second box body 21, the water distribution layer 22, the treatment layer 23 and the water outlet layer 24; the water distribution layer 22, the treatment layer 23 and the water outlet layer 24 are arranged in the second box body 21, and the water distribution layer 22, the treatment layer 23 and the water outlet layer 24 are sequentially arranged from top to bottom along the height direction of the second box body 21; the second box body 21 is provided with a water inlet pipeline 25 and a water outlet pipeline 26, one end of the water inlet pipeline 25 is communicated with the urine outlet 15, and the other end of the water inlet pipeline 25 extends into the water distribution layer 22; one end of the water outlet pipeline 26 extends into the water outlet layer 24, and the other end of the water outlet pipeline 26 extends out of the second box 21.
Specifically, after the urine is adsorbed by the first recovery unit 1, a small part of nitrogen and phosphorus are still not completely adsorbed, and the second recovery unit 2 is arranged, so that the nitrogen and the phosphorus in the urine are further adsorbed and recovered; wherein, urine introduced by the water inlet pipeline 25 is filtered and uniformly distributed under the action of the water distribution layer 22, the treatment layer 23 can further recover nitrogen and phosphorus in the urine, and the water outlet layer 24 is used for supporting the treatment layer 23 and the water distribution layer 22 and realizing filtration and uniform water outlet.
In some embodiments, as shown in fig. 1, the second casing 21 shown in this embodiment includes: a second case body 211 and a second cover 212; the second cover plate 212 covers and locates the open end of second box body 211, is equipped with the second in the second cover plate 212 and holds the chamber, and consequently second cover plate 212 is equipped with a plurality of second through-holes towards second box body 211, and a plurality of second through-holes respectively hold the chamber intercommunication with the second, and the second holds the intracavity and is used for filling activated carbon.
Specifically, the second cover plate 212 is hollow, and the activated carbon is filled in the second cover plate 212, so that the peculiar smell of urine can be adsorbed by the activated carbon through the second through holes, and the peculiar smell of urine at the water outlet pipeline 26 is reduced.
In some embodiments, the filler of the water-barrier layer 22 shown in this embodiment includes gravel, sand, haydite, and plastic particles; the particle size of the filler of the water-repellent layer 22 ranges from 5mm to 15mm, and may be specifically 5mm, 8mm, 10mm, 12mm or 15mm; the filler of the treatment layer 23 comprises soil and biochar, or the filler of the treatment layer 23 comprises soil, biochar and zeolite; the filler of the treatment layer 23 has a particle diameter ranging from 0.5mm to 5mm, and may be specifically 0.5mm, 1mm, 2mm, 3mm, 4mm or 5mm; the filler of the water outlet layer 24 comprises gravel, sand, haydite and plastic particles; the particle size of the filler of the water outlet layer 24 ranges from 5mm to 15mm, and may be specifically 0.5mm, 1mm, 2mm, 3mm, 4mm or 5mm.
In some embodiments, the proportion of the mass of the soil in the treatment layer 23 shown in this embodiment to the total mass of the treatment layer 23 is in the range of 60% to 85%, specifically may be 60%, 65%, 70%, 75%, 80% or 85%, and correspondingly, in the case where the filler of the treatment layer 23 is soil and biochar, the mass ratio of biochar is in the range of 15% to 40%; in the case where the filler of the treatment layer 23 is soil, biochar and zeolite, the total mass ratio of biochar to zeolite is in the range of 15% to 40%, wherein the mass ratio of biochar to zeolite is in the range of 1 to 10, specifically may be 1, 3,5, 7 or 10.
In some embodiments, the thickness of the water-repellent layer 22 in the height direction of the second casing 21 ranges from 2cm to 10cm, and may be specifically 2cm, 4cm, 6cm, 8cm, or 10cm; the thickness of the water outlet layer 24 in the height direction of the second casing 21 ranges from 2cm to 10cm, and may be specifically 2cm, 4cm, 6cm, 8cm or 10cm.
The applicant has tested the recovery rate of the recovery device in combination with rural specific scenes, and the recovery rate is specifically as follows:
In the first embodiment, the urine inlet 14 is connected with the single-family farmer excrement-urine diversity toilet, the hydraulic load of the whole recovery device is 0.05m 3/(m2 d), and the residence time of urine in the whole recovery device is 7 days; TN, TP and NH 4 +-N、PO4 3 -P concentration in the urine before recovery are 13456mg L –1、546mg〃L–1、1579mg〃L–1、432mg〃L–1, chroma 480 and odor level 4 respectively; the first chamber 11 is filled with biochar, the second chamber 12 is filled with activated carbon, the third chamber 13 is filled with zeolite, and the filling proportion of each chamber is 80%; the thickness of the water-distributing layer 22 is 8cm, the filler is gravel, and the particle size is 10mm; the thickness of the water outlet layer 24 is 5cm, the filler is gravel, and the particle size is 4mm; the treatment layer 23 is a mixture of biochar and soil, wherein the mass ratio of the biochar is 25%; the urine parameters were measured at the outlet line 26, where TN and TP recovery were 83% and 96%, respectively, chromaticity 25, and odor less than grade 2.
In the second embodiment, the urine inlet 14 is connected with the single-family farmer excrement-urine diversity toilet, the hydraulic load of the whole recovery device is 0.11m 3/(m2 d), and the residence time of urine in the whole recovery device is 10 days; TN, TP and NH 4 +-N、PO4 3 -P concentration in the urine before recovery are 17340mg L –1、646mg〃L–1、2520mg〃L–1、461mg〃L–1, chroma is 450 and odor is 4 grade; sawdust is filled in the first chamber 11, zeolite is filled in the second chamber 12, biochar is filled in the third chamber 13, and the filling proportion of each chamber is 100%; the thickness of the water-distributing layer 22 is 10cm, the filler is gravel, and the particle size is 10mm; the thickness of the water outlet layer 24 is 5cm, the filler is gravel, and the particle size is 4mm; the treatment layer 23 is a mixture of biochar, soil and zeolite, wherein the mass ratio of the biochar is 25%, and the mass ratio of the zeolite is 10%; the urine parameters were measured at the outlet line 26, where TN and TP recovery were 81% and 93%, respectively, chroma 28, and odor less than grade 2.
In the third embodiment, the urine inlet 14 is connected with the urine collecting pipe of a plurality of farmers, the hydraulic load of the whole recovery device is 0.06m 3/(m2 d, and the residence time of the urine in the whole recovery device is 7 days; TN, TP and NH 4 +-N、PO4 3 -P concentration in the urine before recovery are 9456mg L –1、846mg〃L–1、1379mg〃L–1、417mg〃L–1, chromaticity is 360 and odor is 4 grade; the first chamber 11 is filled with biochar, the second chamber 12 is filled with activated carbon, the third chamber 13 is filled with zeolite, and the filling proportion of each chamber is 70%; the thickness of the water-distributing layer 22 is 8cm, the filler is ceramsite, and the grain diameter is 5mm; the thickness of the water outlet layer 24 is 5cm, the filler is gravel, and the particle size is 4mm; the treatment layer 23 is a mixture of biochar and soil, wherein the mass ratio of the biochar is 15%; the urine parameters were measured at the outlet line 26, where TN and TP recovery rates were 78% and 89%, respectively, chroma 20, and odor less than grade 2.
According to the embodiment, the recovery device for the urine nutrient substances can effectively adsorb nitrogen and phosphorus in urine, so that the nitrogen and the phosphorus can be effectively recovered, the adsorption rate of the nitrogen and the phosphorus is improved by arranging a plurality of fillers, each filler is easy to obtain, the cost is low, the whole adsorption process is easy and convenient to operate, and the recovery device is suitable for being used in rural distributed single households and is also suitable for being used in combination of multiple rural households; the filler after saturation can be stored in a solid mode, so that the convenience in transportation and utilization is improved.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (2)
1. A recovery device for urine nutrients, comprising:
a first recovery unit, the first recovery unit comprising: a first chamber, a second chamber, and a third chamber; the first chamber is used for filling first filler, the second chamber is used for filling second filler, and the third chamber is used for filling third filler;
The urine inlet is communicated with the first chamber, the first chamber is communicated with the second chamber, the second chamber is communicated with the third chamber, and the third chamber is communicated with the urine outlet;
The first filler, the second filler and the third filler are used for sequentially adsorbing and recovering nitrogen and phosphorus in urine;
The first recovery unit further includes: the first box body, the first baffle plate and the second baffle plate;
The first baffle plate and the second baffle plate are arranged in the first box body at intervals along the width direction of the first box body; one end of the first baffle is connected with the bottom of the first box body, the other end of the first baffle extends towards the top of the first box body, and a first gap is formed between the other end of the first baffle and the top of the first box body; one end of the second baffle is connected with the box top, the other end of the second baffle extends towards the box bottom, and a second gap is formed between the other end of the second baffle and the box bottom;
The first side surface of the first baffle plate and the inner side wall of the first box body form a first cavity, the second side surface of the first baffle plate, the first side surface of the second baffle plate and the inner side wall of the first box body form a second cavity, and the second side surface of the second baffle plate and the inner side wall of the first box body form a third cavity;
the urine inlet is arranged close to the bottom of the tank, and the urine outlet is arranged close to the top of the tank;
The first box includes: the first box body and the first cover plate;
The first cover plate is covered at the open end of the first box body, and the box top is formed on the first cover plate; the first filler, the second filler and the third filler are filled or taken out through the first cover plate;
A first accommodating cavity is formed in the first cover plate, a plurality of first through holes are formed in one side, facing the first box body, of the first cover plate, the first through holes are respectively communicated with the first accommodating cavity, and active carbon is filled in the first accommodating cavity;
the recovery device for urine nutrient further comprises: a second recovery unit;
The second recovery unit includes: the device comprises a second box body, a water distribution layer, a treatment layer and a water outlet layer;
The water distribution layer, the treatment layer and the water outlet layer are arranged in the second box body, and the water distribution layer, the treatment layer and the water outlet layer are sequentially arranged from top to bottom along the height direction of the second box body;
The second box body is provided with a water inlet pipeline and a water outlet pipeline, one end of the water inlet pipeline is communicated with the urine outlet, and the other end of the water inlet pipeline extends into the water distribution layer; the water distribution layer is used for filtering and uniformly distributing urine; one end of the water outlet pipeline extends into the water outlet layer, and the other end of the water outlet pipeline extends out of the second box body;
The first filler comprises biomass or biochar; the proportion of the volume of the first filler in the first chamber to the total volume of the first chamber is in the range of 50% to 100%;
The second filler comprises any one of biochar, activated carbon and attapulgite; the proportion of the volume of the second filler in the second chamber to the total volume of the second chamber is in the range of 50% to 100%;
the third filler comprises any one of biochar, activated carbon and zeolite; the volume of the third filler in the third chamber ranges from 50% to 100% of the total volume of the third chamber;
The second casing includes: the second box body and the second cover plate;
the second cover plate is covered at the open end of the second box body, a second accommodating cavity is formed in the second cover plate, a plurality of second through holes are formed in one side, facing the second box body, of the second cover plate, the second through holes are respectively communicated with the second accommodating cavity, and the second accommodating cavity is internally filled with activated carbon;
the filler of the water distribution layer comprises gravel, sand stone, ceramsite and plastic particles; the particle size range of the filler of the water distribution layer is 5mm to 15mm;
the filler of the treatment layer comprises soil and biochar, or the filler of the treatment layer comprises soil, biochar and zeolite; the particle size of the filler of the treatment layer ranges from 0.5mm to 5mm;
The filler of the water outlet layer comprises gravel, sand stone, ceramsite and plastic particles; the particle size range of the filler of the water outlet layer is 0.5mm to 5mm;
the thickness range of the water distribution layer along the height direction of the second box body is 2cm to 10cm;
The thickness range of the water outlet layer along the height direction of the second box body is 2cm to 10cm.
2. The urine nutrient recovery device of claim 1,
The mass of the soil in the treatment layer is in the range of 60% to 85% of the total mass of the treatment layer;
In the case where the filler of the treatment layer includes the soil, the biochar, and the zeolite, the mass ratio of the biochar to the zeolite ranges from 1 to 10.
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| CN202210892979.2A CN115433025B (en) | 2022-07-27 | 2022-07-27 | Recovery device for urine nutrient substances |
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| CN115433025B true CN115433025B (en) | 2024-07-02 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104150696A (en) * | 2014-07-25 | 2014-11-19 | 张列宇 | N and P recovery device and method in sewage |
| CN114751594A (en) * | 2022-04-27 | 2022-07-15 | 浙江大学 | Composite carbon-based reinforced modular baffling biological infiltration system and method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| SE9801177D0 (en) * | 1998-04-03 | 1998-04-03 | A & Science Invest Ab | Crystallization of struvite from urine |
| CN205974172U (en) * | 2016-07-29 | 2017-02-22 | 江苏佳净洁环境科技有限公司 | Biological urine processing apparatus |
| CN210237394U (en) * | 2019-06-11 | 2020-04-03 | 中铁第一勘察设计院集团有限公司 | Source separation urine nitrogen phosphorus is retrieved and water recycling system |
| CN213202622U (en) * | 2020-06-24 | 2021-05-14 | 同济大学 | Urine resourceful treatment device for source separation toilet |
| CN112897677A (en) * | 2021-01-19 | 2021-06-04 | 北京林业大学 | Biological detention pond of intensive nitrogen and phosphorus removal |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104150696A (en) * | 2014-07-25 | 2014-11-19 | 张列宇 | N and P recovery device and method in sewage |
| CN114751594A (en) * | 2022-04-27 | 2022-07-15 | 浙江大学 | Composite carbon-based reinforced modular baffling biological infiltration system and method thereof |
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