CN115626749A - Sewage grading treatment system and treatment method - Google Patents
Sewage grading treatment system and treatment method Download PDFInfo
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- CN115626749A CN115626749A CN202211629367.0A CN202211629367A CN115626749A CN 115626749 A CN115626749 A CN 115626749A CN 202211629367 A CN202211629367 A CN 202211629367A CN 115626749 A CN115626749 A CN 115626749A
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Abstract
The invention provides a sewage grading treatment system and a sewage grading treatment method, which relate to the technical field of sewage treatment and comprise a primary treatment module and a secondary treatment module, wherein the primary treatment module comprises a coarse filtration layer, a combination layer, a biological layer and an adsorption layer, the secondary treatment module comprises a P absorption layer, an organic matter absorption layer, an S absorption layer and a terminal purification layer, the coarse filtration layer is formed by alternately stacking coarse sand and fine sand, the combination layer is formed by stacking calcium carbonate and oyster shells, and the organic matter absorption layer and the terminal purification layer are double cavities.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a sewage grading treatment system and a sewage grading treatment method.
Background
In recent years, the strength of Chinese water pollution control is continuously increased, but the trend of water pollution deterioration is not fundamentally restrained, and simultaneously with effective control of point-source pollution, the problem of non-point-source pollution caused by initial rainwater, combined overflow sewage (CSO for short) and the like attracts more and more attention in China, and through national popularization and publicity, the concept of treating rainwater by using low-impact development technology is accepted by more and more people.
According to the classified biological filter medium disclosed in Chinese patent No. CN112919631B, the preparation method thereof and the classified biological filter system, the disclosed scheme is that the classified biological filter medium is a biological filter filler for carrying out primary treatment on initial rainwater and/or combined overflow sewage and a biological retention composite medium filler for carrying out secondary treatment on the initial rainwater and/or combined overflow sewage after primary treatment, and the biological filter filler comprises volcanic rocks; the biological retention composite medium filler comprises the following components in percentage by mass: 3-10% of water supply plant sludge, 50-60% of coarse sand, 10-15% of fine sand, 20-25% of planting soil and 2-8% of coconut coir. The graded biofiltration medium comprises a biofiltration filler for primary treatment of initial rainwater and/or combined system overflow sewage and a bioretention composite medium filler for secondary treatment, so that the quality of effluent treated by the graded biofiltration medium can be ensured, and the blockage of the bioretention composite medium filler caused by overhigh load can be avoided.
In the above-mentioned current closest patent technical documents obtained by the prior art barriers and retrieval, the problems that the treatment is performed on rainwater and primary low-pollution sewage are solved, the treatment adaptability to the domestic sewage with abundant pollutants is lacked, and the current situation of solid-liquid separation or fermentation treatment is mostly simple in the current domestic sewage treatment, the domestic sewage is directly discharged into a natural water body, the caused pollution is concentrated on the aspects of eutrophication and the like, the treatment cost is high, and the effect is poor.
Disclosure of Invention
Solves the technical problem
Aiming at the defects of the prior art, the invention provides a sewage grading treatment system and a sewage grading treatment method, which solve the problems that the treatment adaptability of domestic sewage rich in pollutants is lacked, the current situation that most of the existing domestic sewage treatment is simple and is summarized as solid-liquid separation or fermentation treatment is directly discharged into natural water, the pollution is concentrated on the aspects of eutrophication and the like, the treatment cost is high, and the effect is poor.
Technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a sewage grading treatment system and a sewage grading treatment method comprise a primary treatment module and a secondary treatment module, wherein the primary treatment module comprises a coarse filtration layer, a combination layer, a biological layer and an adsorption layer, and the secondary treatment module comprises a P absorption layer, an organic matter absorption layer, an S absorption layer and a terminal purification layer;
the coarse filtering layer is formed by alternately stacking coarse sand and fine sand;
the combined layer is formed by stacking calcium carbonate and oyster shells;
the organic matter absorption layer and the terminal purification layer are double cavities.
Preferably, the biological layer is formed by stacking porous stones and microbial communities, the particle size of the porous stones of the biological layer is 300-800 mm, and the porosity of the biological layer is 0.2-0.4.
Preferably, the adsorption layer is formed by alternately stacking MOFs and zeolite, and the adsorption layer is connected with the shell of the primary treatment module by adopting a longitudinal rail.
Preferably, the P absorption layer adopts modified biomass carbon, the organic matter absorption layer adopts macroporous adsorption resin, and the S absorption layer adopts plant fiber compact pressing molding.
Preferably, the terminal purifies the double cavities that layer and organic matter absorbed layer adopted, and adopts one-way bio-permeable membrane between two cavities of terminal purification layer and organic matter absorbed layer.
Preferably, the treatment method of the sewage grading treatment system comprises the following specific steps:
sp1: sewage enters, and enters a rough filtering layer of the primary treatment module through a pipeline;
sp2: sp1 enters sewage and passes through the combination layer and the biological layer, and the sewage treated by the biological layer enters the secondary treatment module through a pipeline;
sp3: the sewage after the steps enters a P absorption layer of a secondary treatment module through a pipeline;
sp4: the sewage of the secondary treatment module is output through the P absorption layer, the organic matter absorption layer, the S absorption layer and the terminal purification layer;
sp5: and the outlet performs water quality detection and uploads cloud data.
Preferably, the preparation process of the biological layer is as follows:
sp1: crushing an original porous stone material into small blocks with the particle size of 300-800 mm;
sp2: washing the crushed material with high pressure to remove surface dirt, and sterilizing with high-temperature steam;
sp3: placing the sterilized porous stone into an ultraviolet chamber for further sterilization and drying;
sp4: soaking the porous stone treated in the step in a microbial solution for 30min;
sp5: sieving the soaked porous stone according to a grade of 50mm and bagging;
sp6: stacking the biological layer from large grain size to small grain size in sequence from bottom to top in a frame of the biological layer;
sp7: a layer of large-particle-size porous stone is additionally paved on the uppermost layer of the biological layer, and a mesh enclosure is wrapped outside the biological layer.
Preferably, the preparation process of the organic absorption layer is as follows:
sp1: filling macroporous adsorption resin into the cavity of the organic matter absorption layer;
sp2: immersing half of the macroporous adsorption resin in the anaerobic bacteria solution to prepare modified macroporous adsorption resin;
sp3: filling modified macroporous adsorption resin into the output cavity on the other side of the organic matter absorption layer;
sp4: the two cavities of the organic matter absorption layer are separated by a one-way permeable membrane.
Preferably, the preparation process of the terminal purification layer is as follows:
sp1, filling activated carbon, and filling spherical particles of the activated carbon in a cavity of the terminal purification layer;
sp2, filling carbon nano tubes, and filling the other cavity of the terminal purification layer with the carbon nano tubes;
sp3: and adding a nano metal cluster wrapped by a reverse osmosis membrane in the middle of the terminal purification layer, and dividing the terminal purification layer into two cavities.
Advantageous effects
The invention provides a sewage grading treatment system and a sewage grading treatment method. The method has the following beneficial effects:
1. the combined type grading sewage treatment mode adopted in the invention is that the biological layer and the adsorption layer mainly aim at removing biological communities and P, the organic matter absorption layer has obvious effects on S and COD, the terminal purification layer is used for further treating terminal water, the purification effect on the water body is limited, and the part can be removed in non-drinking water.
2. The invention adopts a graded sewage treatment mode to treat domestic sewage, can reach the basic drinking water standard under the condition of adding a terminal purification layer, improves the utilization efficiency of the whole water resource and improves the utilization rate of the whole link of the domestic water resource.
Drawings
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is an internal layout of the present invention;
fig. 3 is a partial enlarged view of the invention at a in fig. 2.
Wherein: 1. a primary processing module; 101. a coarse filtration layer; 102. a combined layer; 103. a biological layer; 104. an adsorption layer; 1041. adsorbing the materials; 1042. positioning the cross beam; 1043. a lifting guide rod; 1044. a limiting block; 2. a secondary processing module; 201. a P absorption layer; 202. an organic matter absorbing layer; 203. an S absorption layer; 204. a terminal purification layer; 3. a waste liquid inlet pipe; 4. a communicating pipe; 5. the tube is removed.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core treatment part in the scheme is centralized on the treatment of domestic sewage, and is sewage treatment after solid-liquid separation, a waste liquid inlet pipe 3 is directly connected with a water outlet pipeline of solid-liquid classification equipment or a solid-liquid separation tank, or the solid-liquid separation part is connected with the front of a primary treatment module 1 through a pipeline, the communication relation among other components is communicated through a communication pipe 4, and water resources after terminal treatment are discharged through a discharge pipe 5.
The first embodiment is as follows:
as shown in fig. 1-3, a sewage grading treatment system and a sewage grading treatment method, comprising a primary treatment module 1 and a secondary treatment module 2, wherein the primary treatment module 1 comprises a coarse filtration layer 101, a combination layer 102, a biological layer 103 and an adsorption layer 104, the biological layer 103 is formed by stacking porous stones and microbial communities, the particle size of the porous stones of the biological layer 103 is 300mm-800mm, the porosity of the biological layer 103 is 0.2-0.4, the adsorption layer 104 is formed by alternately stacking MOFs and zeolite, the adsorption layer 104 and the shell of the primary treatment module 1 are connected by a longitudinal rail, the secondary treatment module 2 comprises a P absorption layer 201, an organic absorption layer 202, an S absorption layer 203 and a terminal purification layer 204, the P absorption layer 201 is made of modified biomass carbon, the organic absorption layer 202 is made of macroporous adsorption resin, the S absorption layer 203 is made of plant fiber compact and synthetic type, the terminal purification layer 204 and the organic absorption layer 202 are made of double cavities, a unidirectional biological carbon is used between the terminal purification layer 204 and the organic absorption layer 202, the coarse filtration layer 101 is made of combined with coarse filtration sand, the terminal purification layer 102 and the calcium carbonate layer 204 are stacked and the calcium carbonate layer 202.
In the embodiment, the specific mixture ratio of the coarse filtering layer 101 is 50% of coarse sand and 50% of fine sand, and the thickness of each layer of sand is 30mm-50mm;
in the embodiment, the calcium carbonate and the oyster shells of the combined layer 102 are stacked in sequence, the oyster shells are crushed shells, the particle size is not more than 50mm, the use of biological materials can be improved by using the oyster shells, the use of chemical materials is reduced, and the environmental protection process of the whole equipment is further promoted;
in the embodiment, the biological layer 102 is made of honeycomb type porous stone, the specific surface area is not less than 10 square meters per gram, and the microorganisms of the biological layer 102 are aerobic strains;
in this embodiment, the adsorption layer 104 is an adsorption gel, and the gel of the adsorption layer 104 is also in a honeycomb porous form;
in this embodiment, the P absorption layer 201 is made of modified biomass carbon, and the P absorption layer 201 is stacked with spherical particles, and the particle size of the modified biomass carbon is 10mm to 30 mm;
the second embodiment is as follows: a treatment method of a sewage grading treatment system comprises the following specific steps:
sp1: sewage enters, and enters a rough filtering layer 101 of the primary treatment module 1 through a pipeline;
sp2: the sewage entering from the Sp1 passes through the combination layer 102 and the biological layer 103, and the sewage treated by the biological layer 103 enters the secondary treatment module 2 through a pipeline;
sp3: the sewage after the steps enters a P absorption layer 201 of a secondary treatment module 2 through a pipeline;
sp4: the sewage of the secondary treatment module 2 is output through the P absorption layer 201, the organic matter absorption layer 202, the S absorption layer 203 and the terminal purification layer 204;
sp5: and the outlet performs water quality detection and uploads cloud data.
The third concrete example:
based on the above-mentioned first to second embodiments, a method for treating sewage by classification, the preparation process of the bio-layer 103 is as follows:
sp1: crushing original porous stone consumables into small blocks with the particle size of 300mm-800 mm;
sp2: washing the crushed material with high pressure to remove surface dirt and sterilizing with high temperature steam;
sp3: placing the sterilized porous stone into an ultraviolet chamber for further sterilization and drying;
sp4: soaking the porous stone treated in the step in a microbial solution for 30min;
sp5: screening the soaked porous stone according to a grade of 50mm and bagging;
sp6: stacking the biological layer 103 from large grain size to small grain size from bottom to top;
sp7: a layer of large-particle-size porous stone is additionally paved on the uppermost layer of the biological layer 103, and a mesh enclosure is wrapped outside the biological layer 103.
In this real-time example, the other formulations were the same as those in example one.
The fourth concrete embodiment:
based on the above-mentioned embodiments one to three, a sewage classification treatment method, the preparation process of the organic matter absorption layer 202 is as follows:
sp1: filling macroporous adsorption resin into the cavity of the organic matter absorption layer 202;
sp2: immersing half of the macroporous adsorption resin into the anaerobic bacteria solution to prepare modified macroporous adsorption resin;
sp3: filling modified macroporous adsorption resin into the output cavity on the other side of the organic matter absorption layer 202;
sp4: the two cavities of the organic matter absorption layer 202 are separated by a one-way permeable membrane;
in this example, the other formulations were identical to those in example one.
The fifth concrete embodiment:
based on the above embodiments one to four, a sewage stage treatment method, the preparation process of the terminal purification layer 204 is as follows:
sp1, filling activated carbon, and filling spherical particles of the activated carbon in one cavity of the terminal purification layer 204;
sp2, filling carbon nanotubes, and filling the other cavity of the terminal purification layer 204 with the carbon nanotubes;
sp3: the nano metal cluster wrapped by the reverse osmosis membrane is added to the middle of the terminal purification layer 204, and the terminal purification layer 204 is divided into two cavities.
In this example, the other formulations were identical to those in example one.
The sixth specific embodiment:
based on the above examples, the following experimental protocol was made: the sewage treatment capacity and the treatment time of all the experimental schemes are kept consistent,
experiment 1: for the original case, the formula is completely filled according to the structure in the attached figure 2 without omission;
experiment 2: the combined layer 102 was changed to single calcium carbonate, and the rest was the same as in example 1;
experiment 3: the biological layer 103 was removed and the rest was the same as in example 1;
experiment 4: the organic matter-adsorbing layer 202 was removed, and the remainder was the same as in example 1;
experiment 5: the terminal cleaning layer 204 was removed and the rest was the same as in example 1;
comparison 6: the quality and the time are equal, the existing sewage treatment system is adopted for circulation, and the equipment purchases the most widely sold products in the sewage grading treatment;
the collection parameters were per 100ml of filtered water: p, N, S, organic matter content A, biocenosis Q, COD (chemical oxygen demand);
table 1: comparison of Effect between experiment 1 and comparative example 6
Table 2: comparison of effects between experiment 1 and experiment 2:
table 3: comparison of effects between experiment 1 and experiment 3:
table 4: comparison of effects between experiment 1 and experiment 4:
table 5: comparison of effects between experiment 1 and experiment 5:
according to the five experimental table data, a point can be clearly found, the combined type graded sewage treatment mode adopted in the invention is that the biological layer 103 and the adsorption layer 104 mainly aim at removing biological communities and P, the organic matter absorption layer 202 has obvious effects on S and COD, the terminal purification layer 204 is used for further treating terminal water, the purification effect on the water body is limited, and the part can be removed in non-drinking water, but the scheme combination in the invention can clearly see that in all detection standards through the table 1, except S, other indexes are greatly superior to that of the existing graded treatment equipment, the water resource needing to be treated is different, and different filter materials can be replaced according to actual conditions.
The seventh specific embodiment:
as shown in fig. 3, in a sewage classification treatment system, the adsorption layer 104 includes an adsorption material 1041 and a positioning beam 1042 fixed to the casing of the primary treatment module 1, a lifting guide rod 1043 is provided on both sides of the positioning beam 1042 in a penetrating manner, a 1044 screwed with the lifting guide rod 1043 is provided on the side of the adsorption material 1041, the whole adsorption material 1041 is driven to move up and down by the rotation of the lifting guide rod 1043, and a better adsorption effect is achieved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a reference structure" does not exclude the presence of other similar elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a sewage stage treatment system, includes primary treatment module (1) and secondary treatment module (2), its characterized in that: the primary treatment module (1) comprises a coarse filtration layer (101), a combination layer (102), a biological layer (103) and an adsorption layer (104), and the secondary treatment module (2) comprises a P absorption layer (201), an organic absorption layer (202), an S absorption layer (203) and a terminal purification layer (204);
the coarse filtering layer (101) is formed by alternately stacking coarse sand and fine sand;
the combined layer (102) is formed by stacking calcium carbonate and oyster shells;
the organic matter absorption layer (202) and the terminal purification layer (204) are double cavities.
2. The sewage classification treatment system according to claim 1, wherein: the biological layer (103) is formed by stacking porous stones and microbial communities, the particle size of the porous stones of the biological layer (103) is 300-800 mm, and the porosity of the biological layer (103) is 0.2-0.4.
3. The sewage classification treatment system according to claim 1, wherein: the adsorption layer (104) is formed by alternately stacking MOFs and zeolite, and the adsorption layer (104) is connected with the shell of the primary treatment module (1) by adopting a longitudinal rail.
4. The sewage staged treatment system of claim 1, wherein: the P absorption layer (201) adopts modified biomass carbon, the organic matter absorption layer (202) adopts macroporous adsorption resin, and the S absorption layer (203) adopts plant fiber to be compacted and molded.
5. The sewage classification treatment system according to claim 1, wherein: the terminal purification layer (204) and the organic matter absorption layer (202) adopt double cavities, and a one-way biological permeable membrane is adopted between the two cavities of the terminal purification layer (204) and the organic matter absorption layer (202).
6. The treatment method of a sewage grading treatment system according to claim 1, wherein: the treatment method specifically comprises the following steps:
sp1: sewage enters, and enters a rough filtering layer (101) of the primary treatment module (1) through a pipeline;
sp2: the sewage entering from Sp1 passes through the combination layer (102) and the biological layer (103), and the sewage treated by the biological layer (103) enters the secondary treatment module (2) through a pipeline;
sp3: the sewage after the steps enters a P absorption layer (201) of a secondary treatment module (2) through a pipeline;
sp4: sewage of the secondary treatment module (2) is output through the P absorption layer (201), the organic matter absorption layer (202), the S absorption layer (203) and the terminal purification layer (204);
sp5: and the outlet performs water quality detection and uploads cloud data.
7. The treatment method of the sewage grading treatment system according to claim 6, wherein: the preparation process of the biological layer (103) is as follows:
sp1: crushing an original porous stone material into small blocks with the particle size of 300-800 mm;
sp2: washing the crushed material with high pressure to remove surface dirt, and sterilizing with high-temperature steam;
sp3: placing the sterilized porous stone into an ultraviolet chamber for further sterilization and drying;
sp4: soaking the porous stone treated in the step in a microbial solution for 30min;
sp5: sieving the soaked porous stone according to a grade of 50mm and bagging;
sp6: the materials are sequentially stacked from large grain diameter to small grain diameter from bottom to top in a frame of the biological layer (103);
sp7: a layer of large-particle-size porous stone is additionally paved on the uppermost layer of the biological layer (103), and a mesh enclosure is wrapped outside the biological layer (103).
8. The treatment method of a sewage grading treatment system according to claim 6, wherein: the preparation process of the organic matter absorption layer (202) is as follows:
sp1: filling macroporous adsorption resin into the cavity of the organic matter absorption layer (202);
sp2: immersing half of the macroporous adsorption resin in the anaerobic bacteria solution to prepare modified macroporous adsorption resin;
sp3: filling modified macroporous adsorption resin into the output cavity on the other side of the organic matter absorption layer (202);
sp4: the two cavities of the organic matter absorption layer (202) are isolated by a one-way permeable membrane.
9. The treatment method of the sewage grading treatment system according to claim 6, wherein: the preparation process of the terminal purification layer (204) is as follows:
sp1, filling activated carbon, and filling spherical particles of the activated carbon in a cavity of the terminal purification layer (204);
sp2, filling carbon nano tubes, and filling the other cavity of the terminal purification layer (204) with the carbon nano tubes;
sp3: and a nano metal cluster wrapped by a reverse osmosis membrane is added in the middle of the terminal purification layer (204), and the terminal purification layer (204) is divided into two cavities.
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| CN110937737A (en) * | 2019-11-13 | 2020-03-31 | 赵世航 | Drinking water filtering device |
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| TW200306956A (en) * | 2002-01-18 | 2003-12-01 | Xyclonyx | Treatment of contaminated activated charcoal |
| CN2600434Y (en) * | 2002-11-18 | 2004-01-21 | 魏保验 | Treatment circulation device for waste water of public toilet |
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