CN216639035U

CN216639035U - Artificial rapid infiltration tank

Info

Publication number: CN216639035U
Application number: CN202122999444.9U
Authority: CN
Inventors: 李璐
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-12-02
Filing date: 2021-12-02
Publication date: 2022-05-31
Anticipated expiration: 2031-12-02

Abstract

The utility model discloses an artificial rapid infiltration tank, which comprises a tank body for water and/or gas inlet and outlet of a water supply channel and/or a gas channel, and a plurality of functional layers for water and gas treatment, wherein a filler for sewage/waste gas treatment is arranged in each functional layer, and each functional layer specifically comprises: a filler layer for culturing inoculated microorganisms, a barrier layer for grading filling and a supporting layer for collecting water or dispersing malodorous VOC gas. Compared with the prior art, the artificial rapid infiltration tank can realize dual purposes of water and gas purification, is more sufficient in filler source, more controllable in cost, more controllable in quality uniformity of the filler, more reliable in safety, uniform in quality of the activated biomass carbon filler, and more convenient to process, construct, manage and control. Can better play the role of phosphorus adsorption and fully utilize more space.

Description

Artificial rapid infiltration tank

Technical Field

The utility model relates to an artificial rapid infiltration tank, and belongs to the technical field of water-gas treatment.

Background

The artificial rapid infiltration technology is one of sewage land treatment technologies including subsurface constructed wetlands, the details of which can be seen in the utility model patent of China 'artificial rapid infiltration sewage treatment system device' (application No. CN200410073951.8, published 2005, 10.5.2005), the artificial rapid infiltration technology is called CRI for short, the CRI technology has been studied and applied for 30 years so far, and the CRI technology is gradually matured in 2004 and the utility model patent is reported. The core of the CRI technology is CRI filler, which is artificial quick-infiltration filler processed by mixing natural river sand and mineral ore sand. A large amount of microorganisms with pollutant purification are attached to the surface of the filler, and the sewage purification is realized through the periodic process of 'microbial pollutant adsorption-pool reoxygenation-microbial decomposition-microbial pollutant adsorption … …' in the periodic 'flooding-drying-flooding … …' process of the sewage. The CRI system forms a good micro-ecological environment, can enrich attached aerobic heterotrophic bacteria to purify organic substances, can enrich autotrophic aerobic nitrifying bacteria to purify ammonia nitrogen, and can decompose sulfide substances and denitrify nitrate by a small amount of sulfur bacteria and trace denitrifying bacteria.

The disclosure of the manual rapid infiltration sewage treatment system device comprises: "the rapid infiltration pond is filled with artificial filter material which is manually configured, and the artificial filter material is formed by mixing general filler and special filler with certain particle size distribution according to the volume ratio of 9: 1; the general filler is natural sand, and the special filler is composed of three natural minerals of marble sand or limestone sand, zeolite sand and magnetite sand according to the volume ratio of 90:8: 2. The rapid infiltration tank adopts a dry-wet alternative operation mode to treat sewage, the hydraulic load cycle is short, water is distributed for 4 times within 24 hours a day, and each water distribution time is 15-20 minutes, namely, the water is frequently flooded and falls dry. The hydraulic load of the CRI system of the utility model is generally 1.0-1.5 m/d (m)³/m²D) the floor area for treating each side of sewage is about 0.8m²/m³·d。”

The CRI technology has a relatively wide application scene of sewage treatment in a relatively long period of time. However, the core technology CRI filler of this prior application has several more difficult disadvantages to overcome:

firstly, the efficiency of removing Total Phosphorus (TP) of an artificial rapid infiltration system is low, phosphorus treatment depends on the adsorption effect of special fillers (namely fluorite, magnetite and limestone sand), the adsorption capacity is limited, and the phosphorus removal efficiency is easy to reduce after long-term use for many years and needs to be replenished again.

The manual rapid infiltration system needs to consume alkalinity in the ammonia nitrogen removal process, manual rapid infiltration filling mainly depends on providing alkalinity for nitration reaction of the system by limestone particles, is also a consumable material and needs to be supplemented in the future, all the fillers of the limestone particles are mixed and filled, the nitrification of ammonia nitrogen is concentrated within 50cm of the surface layer, and therefore the fillers with the thickness of tens of centimeters at the lower layer are useless when being mixed with limestone stone grains, and more waste is caused.

And thirdly, the quality of the natural river sand and ore sand used by the artificial rapid infiltration is unstable, particularly the natural river sand used by the common filler has huge index difference of river sand components, strength, sphericity and the like in various regions due to the limitation of transportation radius, and even the natural river sand is replaced by machine-made sand, so that the quality control difficulty of the filler of each project is high, and the quality control of the artificial rapid infiltration filler is unstable. Meanwhile, the adopted ore sand and river sand are unclear in source, and more complex associated ore pollutants such as heavy metals including chromium, cadmium, arsenic, copper, lead, zinc and the like easily exist, so that the artificial rapid infiltration technology is not easily applied to the field of drinking water or high-quality water purification.

Fourth, the artificial rapid infiltration system is only used for treating sewage or slightly polluted water, but not used for purifying gas, and the application range is too narrow.

And fifthly, common fillers and special fillers used by the artificial rapid infiltration fillers are natural resources, wherein 90 percent of the natural river sand and 10 percent of mineral sand (fluorite, magnetite and limestone sand) consume a large amount of natural resources during mining, and particularly, the mining process of the natural river sand directly destroys river water ecology and destroys the ecological system of aquatic animals and plants, and the natural river sand and the mineral sand are non-renewable resources.

In view of the above, the prior art has not been able to fully satisfy the needs of people, and improvements are needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an artificial rapid infiltration tank, which solves the defects in the prior art.

The utility model is realized by adopting the following technical scheme:

the utility model provides a artifical rapid infiltration layer pond for aqueous vapor is handled, is including the cell body that supplies water route and/or gas circuit to advance, go out to and a plurality of is used for carrying out aqueous vapor processing's functional layer be provided with the filler that is used for carrying out sewage/exhaust-gas treatment in the functional layer, its characterized in that, the functional layer specifically includes: a filler layer for culturing inoculated microorganisms, a barrier layer for grading filling and a supporting layer for collecting water or dispersing malodorous VOC gas.

Furthermore, a plurality of functional layers are longitudinally arranged in the cell body and sequentially comprise a filler layer, a barrier layer and a bearing layer from top to bottom.

Further, the thickness of the packing layer is 1-1.5 m, and packing sand with the material diameter of 1-3 mm is arranged in the packing layer; the thickness of the blocking layer is 0.1-0.2 m, and filler stones with the particle size of 6-15 mm are arranged in the blocking layer; the thickness of the bearing layer is 0.4-0.6 m, and a filler block with the particle size of 20-40 mm is arranged in the bearing layer.

Furthermore, a water distribution pipe for entering sewage is arranged above the packing layer, and a water collecting pipe for discharging water is laid in the bearing layer.

Furthermore, a vent pipe for entering gas is laid in the bearing layer, and a sprinkling nozzle for humidifying is arranged on the upper side of the packing layer.

The manual rapid infiltration process for water gas treatment is characterized by comprising the following steps of: the pretreated sewage enters the water-gas treatment tank from the upper part of the tank body through the water distribution pipe, the water distribution mode is continuous or intermittent, the sewage firstly contacts the surface of the packing layer and forms a free water surface on the packing layer, the sewage vertically flows into the barrier layer and the bearing layer at the lower part of the tank body along the packing layer in a top-down seepage mode, the free water surface is formed again on the bearing layer, the free water surface in the bearing layer is discharged out of the tank body through the water collection pipe of the bearing layer, and the purification process is completed.

Furthermore, the functional layer of the manual rapid infiltration pond that aqueous vapor was handled all grows to be attached to and is used for adsorbing the microorganism of degradation to the pollutant, and waste gas gets into the cell body from the breather pipe of bottom of the pool, and gas from bottom to top passes from supporting layer, barrier layer, packing layer in proper order, and each functional layer all is provided with the microorganism that is arranged in adsorbing the degradation to pollutant in the waste gas, and the watering shower nozzle of packing layer top carries out water spray humidification to the packing layer surface.

Furthermore, when the water-spraying device is used for gas purification, trace element phosphorus is added into water when a water-spraying nozzle above the packing layer sprays water for heating.

A preparation method of an artificial rapid infiltration filler of active biomass carbon is characterized in that slag of a biomass power plant is screened out and sorted to obtain slag with the grain diameter of 1-3 mm, impurities are removed, washing, chemical impregnation and microbial inoculation are carried out, and the artificial rapid infiltration filler is prepared after modification; and similarly, separating slag with the particle size of 6-15 mm to be used as a blocking layer of the artificial rapid infiltration tank, and separating slag blocks with the particle size of 20-40 mm to be used as a bearing layer of the artificial rapid infiltration tank.

The utility model has the beneficial technical effects that:

compared with the prior art, the utility model has the advantages of more sufficient filler source, more controllable cost and more controllable quality uniformity of the filler, does not use mineral substances with unknown components and unclear sources, has more reliable safety, and is more reliable particularly when being used for treatment in the water supply field.

The ABC filler saves the link that the CRI filler needs to be supplemented with mineral substances (calcium-iron series metal salts), reduces the complexity of production management, has more uniform quality, adopts the ABC filler with single type and different particle size differences, and is more convenient to process, construct, manage and control.

The ABC filler has the adsorption performance and the specific surface area is much larger than that of stones with the particle size, can better play the phosphorus adsorption role, and particularly has the capacity of adsorbing phosphorus by soaking and contacting for a barrier layer and a supporting layer in the CRI rapid infiltration tank in the original patent. Therefore, the ABC rapid-permeation pool in the design fully utilizes the space (generally the thickness is 40-60 cm) about 1/3 which cannot be normally used at the lower part of the CRI rapid-permeation pool.

The ABC filler rapid-permeation tank is more unique, can purify sewage, can be used for centralized odor and VOC purification, fully expands the application field of manual rapid-permeation, and is not limited to sewage treatment. Like a biological trickling filter, an ABC rapid infiltration tank is also a few purification processes which can be used by water and gas in the field of environmental pollution treatment.

Drawings

Fig. 1 is a schematic sectional view of a water-gas treatment tank and an inlet and outlet path of a water path.

Fig. 2 is a schematic sectional view of the water-gas treatment tank and the inlet and outlet paths of the gas path.

Detailed Description

The utility model will be better understood by the following description of embodiments thereof, but the applicant's specific embodiments are not intended to limit the utility model to the particular embodiments shown, and any changes in the definition of parts or features and/or in the overall structure, not essential changes, are intended to define the scope of the utility model.

Large background:

the sewage land treatment technology comprises the traditional technologies of constructed wetlands (surface flow type, subsurface flow type and sub-subsurface flow type), surface overflow (mountain grassland), slow Seepage (SI), fast seepage (RI) and the like, and the artificial fast seepage (CRI) technology developed in China in nearly 30 years.

The artificial fast infiltration (CRI) technology is a novel sewage land treatment method which appears at the late 1990 of the 20 th century and is rapidly developed in the first decade of the 21 st century, the technology uses the concept of the traditional fast infiltration (RI) technology in Europe and America as a reference, uses an artificial compound filler to replace a natural soil layer, selects natural river sand suitable for the growth of microorganisms, and is provided with an artificial filler which is formed by mixing part of mineral sand which can slowly release and adjust the pH value and is beneficial to phosphorus adsorption. The method has the advantages that the pollutants in the water are adsorbed and degraded by abundant microorganisms in the sand layer for purification, so that the hydraulic load of the system is increased by 10-100 times, and the original treatment efficiency and treatment effect are mostly reserved as far as possible.

Small background:

the development of the artificial rapid infiltration technology in nearly 30 years has reached a relatively stable state and has a technical bottleneck, and the method mainly focuses on the problems of extremely low total nitrogen denitrification efficiency, large occupied area and incapability of continuing compression, the problem that the filler needs to be replaced in the old generation rapid infiltration technology, and river sand and ore sand required by the artificial rapid infiltration filler are high-grade resources and are not easy to obtain. The production cost of the CRI filler is increased gradually due to the continuous rising price of the mining resources. Meanwhile, the high-quality and applicable CRI filler sand source is gradually exhausted, and the river and mine ecological environment is damaged by sand mining, so that the raw material quality of the rapid-permeability filler is restricted, the technology sustainability is reduced, and in addition, the influence of the river sand transportation radius is avoided, the CRI filler processing quality in various regions is different, the technology accumulation is influenced by the difficult uniform filler quality, and the application and development of the technology are limited.

The manual rapid infiltration method adopts the technical scheme that:

expressed according to the original bottom-layer technology (CN200410073951.8 manual rapid infiltration sewage treatment system device): "the rapid infiltration pond is filled with artificial filter material which is manually configured, and the artificial filter material is formed by mixing general filler and special filler with certain particle size distribution according to the volume ratio of 9: 1; the general filler is natural sand, and the special filler is composed of three natural minerals of marble sand or limestone sand, zeolite sand and magnetite sand according to the volume ratio of 90:8: 2. The rapid infiltration tank of the prior invention adopts a dry-wet alternative operation mode to carry out sewage treatment, the hydraulic load cycle is short, water distribution is carried out for 4 times within 24 hours a day, and each water distribution time is 15-20 minutes, namely, the rapid infiltration tank is frequently flooded and falls dry. The hydraulic load of the CRI system of the utility model is generally 1.0-1.5 m/d (m)³/m²D) the floor area for treating each side of sewage is about 0.8m²/m³·d。”

The technology adopts the active biomass material (ABC material for short) as the rapid-infiltration pond filler (ABC filler for short) after being inoculated by the screened water system chemical impregnation microorganism to replace the filler mixed by river sand (high-quality quartz sand) and iron-based calcium-based mineral sand for the prior artificial rapid infiltration, can make up or improve the defects of the prior artificial rapid infiltration technology, and the defects are as follows:

prior art- "Manual rapid infiltration Sewage treatment System device

(CN200410073951.8) has the following disadvantages:

1. the CRI filler has unstable quality, the ABC material has more consistent and stable quality and component properties, and the quality control of the filler filled in the rapid infiltration tank is easier. The problem of short river sand transportation radius determines that the artificial rapid infiltration filler can only be obtained from local materials under the existing economic cost condition, but the area of each project is different, and the problem of river sand component quality and hardness is determined to be different, so that the quality of 90% of the filler components forming the artificial rapid infiltration is unstable, the artificial rapid infiltration sewage plant station filler is also a specific formula of each project independently, the fillers are different due to the difference of regions among the projects, even the comparison and reference of operation data are poor, and the reference cannot be directly carried out.

According to the utility model, the active biomass charcoal filler is adopted to replace a complex river sand composite filler, the active biomass charcoal sand with the particle size of 1-3 mm which is sieved is adopted as the filler, and the components of the active biomass charcoal sand are relatively stable because the active biomass charcoal sand is only derived from plant biomass such as straws, grass trees, rice hulls and the like. E.g. almost most of, SiO₂30-45% of Fe₃O₄5-15%, and the extreme error of the filler components in different production areas is within 20% and more than 10%, so that the uncertainty of the filler quality is greatly eliminated.

2. The raw materials of the CRI filler, namely river sand and ore sand, are high in price and difficult to obtain, and the ABC material is biomass power plant slag waste, low in obtaining cost and convenient to obtain. River sand is a common building material, high-quality river sand is more required as an aggregate of cement for large buildings, the price of the river sand is increased year by year as a non-renewable resource, and the transportation cost is high due to high water content in the transportation process. Minerals such as magnetite, fluorite and the like are relatively scarce and non-renewable resources, and the price is also increased year by year. The ABC material adopted by the utility model is derived from the slag of the biomass power plant, belongs to the property of a semi-activated carbon semi-vitreous body mixture, is widely distributed all over the country, is used as the waste of the biomass power plant, and is relatively stable in source. Meanwhile, the ABC material which is used as one of agricultural plant ashes in the past can be used for agricultural field returning, nitrogen and phosphorus loss of farmlands is prevented, yield of crops is increased, and the source is safe and reliable. In the design, the alkalinity characteristic is utilized to easily provide alkalinity required by nitrification in the sewage treatment process and have strong inorganic phosphorus adsorption capacity.

3. The CRI filler needs to be doped with limestone and magnetite sand for adsorbing phosphorus atoms in water and providing alkalinity required by nitrobacteria, while the ABC filler adopted by the technology has strong phosphorus adsorption capacity and provides alkalinity required by nitrobacteria. The ABC filler contains the components of iron, magnesium and calcium (more than or equal to 15 percent) which far exceeds the proportion of the iron, magnesium and calcium (less than or equal to 10 percent) of the CRI filler, which indicates that the biomass ABC filler is more suitable for being used as an artificial rapid infiltration filler than the combination of quartz sand and mineral sand.

4. The CRI filler is used as a building material in the building industry, the ABC filler is prepared from the waste of a biomass power plant, and the ABC filler is more environment-friendly and green than the CRI filler and embodies the ecological concept of circular economy, energy conservation and emission reduction. The ABC material burned by straws generated by biomass power generation replaces the filler artificially and quickly infiltrated, so that waste can be changed into valuable, the inorganic phosphorus can be adsorbed by pollutants purified by biofilm formation, the application cost of the CRI technology can be saved, the quality control of the filler is improved, the resource consumption is reduced, and the ecological pursuit of environmental protection is reflected.

The common filler (natural river sand) and the special filler (fluorite, magnetite and limestone) used for artificial quick infiltration are natural resources, particularly the common filler with large using amount is the natural river sand per se, and the sand sampling is very destructive to the natural ecological environment, the habitat of river benthonic animals and fishes, and is subject to the problem of the protection of tissues by the natural environment for a long time. When the ABC filler is adopted, particularly for purifying sewage or slightly polluted water, the CRI special filler can be completely replaced, the proportion of the ABC filler is not limited to 10%, the ABC filler can be mixed with natural river sand according to the proportion of not less than 10%, even 100% of the ABC filler can be used for completely replacing common and special CRI fillers, and the river sand resource which is tense day by day is partially or completely replaced, so that the use of the natural resource is reduced, and the ecology is protected.

5. The bottom of the CRI technical filler layer is provided with a bearing layer and a blocking layer which are formed by common stone stones, and the effective components of the CRI technical filler layer are only CRI sand-shaped fillers with the thickness of about 1-1.5 on the upper part. After the ABC material is adopted in the technology, active biomass carbon blocks with diameters of 6-15 mm and 20-40 mm can be respectively adopted as a bottom blocking layer and a supporting layer at the bottom, so that compared with the traditional CRI technology, the water collecting space of 40-60 cm at the bottom can be more fully utilized, namely about 50% of capacity is increased for a CRI system, the idle Hydraulic Retention Time (HRT) of the CRI technology is greatly utilized, the blocking layer and the supporting layer are in full immersion contact with water, the ABC is fully utilized to easily absorb inorganic phosphorus, and the Total Phosphorus (TP) can be removed by a purification system.

6. The source is safe: magnetite fluorite limestone which is a special filler of the CRI filler is prepared into ore sand, the ore sand with complicated resources of semi-crude ore difficult to avoid, particularly the ore sand containing heavy metals (chromium, lead, zinc, copper, nickel, arsenic, cadmium) and the like is also one of iron ore associated minerals, and the natural river sand is difficult to avoid and reserve Persistent Organic matters (POPs), heavy metal ions, Environmental Endocrine Disruptors (EDCs) and other Environmental hormones due to the deposition of atmospheric dry and wet sedimentation surface source pollution and industrial pollution. The active biomass ABC material is prepared from agricultural and forestry crops such as straws, rice husks, tree branches and leaves, bamboo and wood in the agricultural field, and various organic matters are eliminated through high-temperature oxidation treatment, so that the active biomass ABC material is clear and safe in source and free of complex unidentified substances, heavy metals and toxic nonmetallic minerals, and is safer than CRI fillers directly used in the sensitive drinking water purification field or the water source micro-pollution purification field.

The patent is far beyond the prior art level and beyond the expectation of the technical personnel in the field, and the rapid infiltration tank filled with ABC active biological carbon is adopted for sewage treatment and can be filtered and purified from top to bottom; the malodors (herein, "malodors" include VOCs, the same applies hereinafter) may be purified from the bottom to the top in a manner other than from the inside.

In order to distinguish the traditional manual rapid infiltration process in the prior art, an artificial rapid infiltration tank formed by Activated Biomass charcoal may be referred to as an "ABC rapid infiltration tank" herein for short, and core filler Activated Biomass charcoal (Activated Biomass Carbon) sand or block is referred to as "ABC filler". The corresponding water vapor purification process is also called as ABC artificial rapid infiltration process. In this patent, the manual rapid infiltration pond is the water gas treatment pond that handles water gas.

As shown in fig. 1 and 2, the water-gas treatment tank includes a tank body for water and/or gas inlet and outlet, and a plurality of functional layers for water-gas treatment, wherein a filler for sewage/waste gas treatment is arranged in the functional layers, and the functional layers specifically include: the water-gas treatment tank comprises a packing layer for culturing inoculated microorganisms, a blocking layer for grading filling and a bearing layer for collecting water gas, wherein a plurality of functional layers are longitudinally arranged in the tank body and sequentially comprise a packing layer 2, a blocking layer 3 and a bearing layer 4 from top to bottom, and the packing layer 2, the blocking layer 3 and the bearing layer 4 are arranged on the inner side of the tank wall 1 of the tank body, so that the integral structure of the water-gas treatment tank is formed. In the process that sewage passes through the packing layer 2, microorganisms grow and attach in the packing layer to generate adsorption and biochemical reactions, so that pollutants in the water are purified, and the alkalinity in the packing layer is consumed to a certain extent due to the existence of a nitrification process. And the barrier layer 3 and the supporting layer 4 both have phosphorus pollutant adsorption capacity and can continue purification treatment. It should be noted that: the meaning of "water vapor treatment" in the present invention is not limited to simultaneous treatment of water vapor, but it is said that sewage treatment or purification of malodorous (VOC-containing) gas can be realized when environmental pollution control is performed.

Preferably, the thickness of the packing layer 2 is 1-1.5 m, and packing sand with the material diameter of 1-3 mm is arranged in the packing layer 2; the thickness of the blocking layer 3 is 0.1-0.2 m, and filler stones with the particle size of 6-15 mm are arranged in the blocking layer 3; the thickness of the bearing layer 4 is 0.4-0.6 m, and a filler block with the particle size of 20-40 mm is arranged in the bearing layer 4.

Preferably, the filler sand of the filler layer 2, the filler stones of the barrier layer 3 and the filler blocks of the supporting layer 4 are ABC fillers, that is, the core filler described above: a sand or a cake of activated biomass char.

Preferably, a water distribution pipe 5 for entering sewage is arranged above the packing layer 2, and a water collecting pipe 6 for discharging water is laid in the supporting layer 4. In this embodiment, the water distribution pipe 5 and the water collection pipe 6 are arranged to treat the pretreated sewage, and the treatment process is as follows: the pretreated sewage enters the water-gas treatment tank from the upper part of the tank body through the water distribution pipe, the water distribution mode is continuous or intermittent, the sewage firstly contacts the surface of the packing layer and forms a free water surface on the packing layer, the sewage vertically flows into the barrier layer and the bearing layer at the lower part of the tank body along the packing layer in a top-down seepage mode, and the free water surface is formed again on the bearing layer; the free water surface on the bearing layer is discharged out of the pool body through the water collecting pipe of the bearing layer at the same time, and the purification process is completed.

The principle of the sewage treatment process is as follows: pretreated sewage enters a rapid infiltration tank formed by tank walls 1 of the tank body from the upper part of the tank body through a water distribution pipe 5, a continuous or intermittent water distribution mode is adopted, the sewage firstly contacts the surface of a packing layer 2 and can form a free water surface on the packing layer 2, the sewage vertically flows into a barrier layer 3 and a bearing layer 4 at the lower part of the tank body along the packing layer 2 in a seepage mode from top to bottom, the free water surface is formed again on the bearing layer, and the sewage is discharged out of the tank body through a water collection pipe 6 of the bearing layer 4 to complete a complete purification process. In the process that sewage passes through the packing layer 2, the sewage and microorganisms (membranes) growing and attached in the packing layer are subjected to adsorption and biochemical reaction to purify pollutants in the water, and the alkalinity in the packing layer is consumed to a certain extent due to the existence of a nitrification process. And the barrier layer 3 and the supporting layer 4 both have phosphorus pollutant adsorption capacity and can continue purification treatment.

Preferably, a vent pipe 8 for entering gas is laid in the supporting layer 4, and a sprinkling nozzle 7 for humidifying is installed on the upper side of the packing layer 2. In this embodiment, the effect of setting up watering shower nozzle 7 and breather pipe 8 is to carry out exhaust purification and treatment, and the functional layer in aqueous vapor treatment pond all grows to be attached with and is used for adsorbing the microorganism of degradation to pollutants, and waste gas gets into the cell body from the breather pipe 8 of bottom of the pool in, and gas from bottom to top passes from holding layer 4, barrier layer 3, packing layer 2 in proper order, and each functional layer all is provided with the microorganism that is used for adsorbing the degradation to pollutants in the waste gas, and watering shower nozzle 7 above packing layer 2 carries out water spray humidification to the packing layer surface. Because of the demand of waste gas purifying microorganism, the surface of the packing layer 2 is sprayed with water and humidified by the sprinkling nozzle 7 so as to humidify the ABC packing for waste gas purification, and trace elements such as phosphorus and the like can be properly added into the sprayed water according to the requirement. The water spraying and aeration may be carried out continuously or intermittently. If the gas flux becomes small (namely the blockage tendency), the introduction of the waste gas is suspended, and the filling layer is maintained only by filling air and is loosened. After the bad odor or VOC gas is treated and is blocked maliciously, the production can be stopped, the blockage can be recovered automatically after the biological membrane is subjected to anaerobic hydrolysis, or clean air is introduced to recover in an aerobic oxidation mode, or a strong oxidant (such as ozone) is introduced to treat organic matters which are difficult to degrade, and then the recovery is carried out.

It is worth noting that when the ABC rapid-infiltration pond is used for the water gas purification process, grass is easy to grow on the surface of the filler layer 2, and different from the technology of artificial wetland class, the ABC rapid-infiltration pond should generally pull out surface weeds and remove moss as much as possible to avoid the filler from being blocked by grass roots and the moss.

Preferably, the ABC filler is used for the filler layer 2 in the ABC rapid-permeation tank, and the non-ABC filler is used for the barrier layer 3 and the supporting layer 4, which cannot be considered to fall within the protection scope of the appended claims of the patent because the ABC filler is not used for the supporting layer 4 and the barrier layer 3 from the patent protection viewpoint. If other inert materials are mixed and doped in the ABC filler or other inert materials are selected in the middle level of the layered filling, such as sand, stones and stones with similar particle sizes, the principle is the same, and the ABC filler is regarded as the equivalent technical characteristic of the utility model. The ABC filler can completely replace the special filler of the original CRI technology by 100 percent, but the replacement of the common filler, the supporting layer and the blocking layer is not limited by the forced proportion, the ABC filler can be completely used, and river sand, stones and stones can be continuously used as the common filler, the blocking layer and the supporting layer of the rapid infiltration tank without the limitation of the proportion.

When ABC oozes pond soon and is used for foul gas or VOC gaseous purification, it is also same utility model if filler layer 2 top layer does not increase humidity through watering shower nozzle 7, perhaps increases moisture through other modes. Meanwhile, if the gas is humidified before the air enters the ventilation pipe 8, the same effect is achieved, and the same technical scheme is considered as an equivalent alternative.

In practical application, the technical effect of the utility model is independent of the thickness and the shape (square/round) of the tank body and the filling sequence of the filler, and the sequence from bottom to top is as follows: the water collecting device comprises a supporting layer (a stone layer for collecting water or a stone layer for uniformly diffusing gas and usually having a bottom slope), a blocking layer (a grading filling scheme for preventing an upper sand-shaped filler from flowing to a lower part), and a filler layer (a key layer for inoculating microorganisms to adsorb and degrade pollutants), wherein the sequence is more important than the thickness, and better technical effects can be obtained.

A preparation method/preparation process of an active biomass carbon filler comprises the following steps: the method comprises the steps of screening and sorting the slag of the biomass power plant to obtain slag with the particle size of 1-3 mm, removing impurities, washing, chemically dipping and inoculating microorganisms, and modifying to obtain the modified slag. In the preparation method/preparation process, the Active Biomass Carbon (ABC) is composed of slag sintered by a biomass power plant, the biomass power plant only burns agricultural wastes such as straw, rice hulls and bagasse, and the slag is a mixture with dual properties of the active carbon and glass. Generally, the ABC filler is not sieved and can be used after sieving and washing if the ABC filler is used as a filler, and the component with the weight of about 1/3 is sieved and can be used for filling the ABC filler in the project.

The utility model replaces the core filler of the artificial rapid infiltration technology with active biomass carbon (ABC for short, if no special description exists, the ABC refers to the active biomass carbon) filler, which not only overcomes the problem of unstable quality of the artificial rapid infiltration filler, but also saves the link of adding limestone and rock grains for increasing the alkalinity required by the nitration process by adopting the weak alkaline filler, and the active biomass carbon filler has good phosphorus adsorption and capture capacity, and saves the cost of adding the fluorite grains and the magnetite sand for phosphorus removal by adopting the artificial rapid infiltration filler, thereby greatly saving the cost of the rapid infiltration filler, and realizing the transverse application and comparison of the technology in various places by adopting the filler (components, proportion and size) with stable quality, and facilitating the technology accumulation. Meanwhile, the utility model provides a manual rapid infiltration sewage treatment process which adopts a mode of bottom inlet and top outlet to purify the odor and part of Volatile Organic Compounds (VOC) waste gas, fully utilizes the accumulation of microorganisms in the packing layer to culture more floras beneficial to pollution purification and surpasses the prior art.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore intended that all such changes and modifications as fall within the true spirit and scope of the utility model be considered as within the following claims.

Claims

1. The utility model provides a pond is oozed soon in manual work, is including the cell body that supplies water route and/or gas circuit to advance, go out to and a plurality of is used for carrying out the functional layer that the aqueous vapor was handled be provided with the filler that is used for carrying out sewage/exhaust-gas treatment in the functional layer, its characterized in that, the functional layer specifically includes: a filler layer for culturing inoculated microorganisms, a barrier layer for grading filling and a supporting layer for collecting water or dispersing malodorous VOC gas.

2. The artificial rapid infiltration pond of claim 1, wherein a plurality of functional layers are longitudinally arranged in the pond body and sequentially comprise a filler layer, a barrier layer and a bearing layer from top to bottom.

3. The artificial rapid infiltration pond according to claim 2, wherein the thickness of the packing layer is 1-1.5 m, and the packing layer is internally provided with packing sand with the material diameter of 1-3 mm; the thickness of the blocking layer is 0.1-0.2 m, and filler stones with the particle size of 6-15 mm are arranged in the blocking layer; the thickness of the bearing layer is 0.4-0.6 m, and a filler block with the particle size of 20-40 mm is arranged in the bearing layer.

4. The artificial rapid infiltration pond according to any one of claims 1 to 3, characterized in that a water distribution pipe for entering sewage is installed above the packing layer, and a water collection pipe for discharging water is laid in the bearing layer.

5. The artificial rapid infiltration pond of any claim 1-3, wherein the supporting layer is laid with a vent pipe for gas entering, and the upper side of the packing layer is provided with a sprinkling nozzle for humidification.