CN114101300A - Tailing processing method, device and system and computer readable storage medium - Google Patents
Tailing processing method, device and system and computer readable storage medium Download PDFInfo
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- CN114101300A CN114101300A CN202111315382.3A CN202111315382A CN114101300A CN 114101300 A CN114101300 A CN 114101300A CN 202111315382 A CN202111315382 A CN 202111315382A CN 114101300 A CN114101300 A CN 114101300A
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/02—Agriculture; Fishing; Mining
Abstract
The application provides a tailing processing method, a device, a system and a computer readable storage medium, which are used for introducing the treatment of microorganism induced calcium carbonate precipitation (MICP) and realizing low-cost and low-pollution treatment on tailing. The application provides a tailing processing method, which comprises the following steps: a tailing processing system acquires a processing task of initial tailing; the tailing processing system determines a heap leaching position matched with the initial tailing; the tailing processing system acquires aerobic bacteria and facultative anaerobic bacteria processed by MICP; at the heap leaching position after the anti-seepage treatment, the tailing treatment system mixes the initial tailing, the domestic wastewater and the straws, and adds a microbial solution obtained by culturing aerobic bacteria and facultative anaerobic bacteria to carry out the heap leaching reaction of MICP treatment; and after determining that the heap leaching reaction result is qualified, outputting the obtained target tailings by a tailings treatment system.
Description
Technical Field
The present application relates to the field of information, and in particular, to a method, an apparatus, a system, and a computer-readable storage medium for tailing processing.
Background
Tailings are understood as waste discharged from a concentrating mill after the ore is ground under specific economic and technical conditions and useful components are selected, namely solid mineral waste after the useful mineral components are screened.
For a concentrating mill, tailings have lost useful value in a concentrating process thereof, and in the prior related art, the inventor finds that the waste treatment of tailings has a high cost, excessive accumulation and environmental pollution easily caused, so that the problem to be solved is how to treat tailings with low cost and low pollution.
Disclosure of Invention
The application provides a tailing processing method, a device, a system and a computer readable storage medium, which are used for introducing microorganism-Induced Carbonate Precipitation (MICP) processing to realize low-cost and low-pollution treatment of tailing.
In a first aspect, the present application provides a tailings treatment method, comprising:
a tailing processing system acquires a processing task of initial tailing;
the tailing processing system determines a heap leaching position matched with the initial tailing;
the tailing processing system acquires aerobic bacteria and facultative anaerobic bacteria processed by MICP;
at the heap leaching position after the anti-seepage treatment, the tailing treatment system mixes the initial tailing, the domestic wastewater and the straws, and adds a microbial solution obtained by culturing aerobic bacteria and facultative anaerobic bacteria to carry out the heap leaching reaction of MICP treatment;
and after determining that the heap leaching reaction result is qualified, outputting the obtained target tailings by a tailings treatment system.
With reference to the first aspect of the present application, in a first possible implementation manner of the first aspect of the present application, a tailings treatment system for obtaining aerobic bacteria and facultative anaerobic bacteria treated by MICP (microbial induced calcium carbonate precipitation) technology includes:
respectively mixing a preset number of initial aerobic bacteria and initial facultative anaerobic bacteria with initial tailings by a tailings treatment system;
the tailing processing system mixes the initial aerobic bacteria and the initial facultative anaerobic bacteria with domestic wastewater respectively;
the tailings disposal system identifies aerobic bacteria and facultative anaerobic bacteria for MICP treatment, which have the best tolerance, based on the two mixed treatments, and cultures them.
With reference to the first aspect of the present application, in a second possible implementation manner of the first aspect of the present application, before the tailings processing system determines the heap leaching position adapted to the initial tailings, the method further includes:
the tailing processing system measures heavy metal elements in the initial tailing;
the tailings treatment system judges whether the heavy metal element measurement result of the initial tailings meets the heavy metal element requirement of MICP treatment;
the tailings treatment system is used for measuring nutrient substances in the domestic wastewater;
the tailings treatment system judges whether the determination result of the nutrient substances of the domestic wastewater meets the nutrient substance requirement of MICP treatment;
and if the heavy metal element requirements and the nutrient substance requirements are met, triggering and determining the heap leaching position matched with the initial tailings by the tailings treatment system.
With reference to the first aspect of the present application, in a third possible implementation manner of the first aspect of the present application, after determining that the heap leaching reaction result is qualified, before the tailings processing system outputs the obtained target tailings, the method further includes:
monitoring the heavy metal element content, the N element content, the P element content and the K element content of the tailings in the heap leaching reaction by a tailings treatment system;
and when the heavy metal element content, the N element content, the P element content and the K element content of the tailings in the heap leaching reaction meet the preset soil use requirements, determining that the heap leaching reaction result is qualified by the tailings treatment system.
With reference to the first aspect of the present application, in a fourth possible implementation manner of the first aspect of the present application, the determining, by a tailings processing system, a heap leaching position of initial tailings adaptation includes:
and the tailing processing system determines the heap leaching position matched with the initial tailing according to the tailing transportation route, the tailing transportation distance, the domestic wastewater transportation route, the domestic wastewater transportation distance, the straw transportation route, the straw transportation distance, the ventilation condition, the illumination condition and the heap leaching site laying cost.
With reference to the fourth possible implementation manner of the first aspect of the present application, in the fifth possible implementation manner of the first aspect of the present application, the tailings disposal system determines the heap leaching position of the initial tailings adaptation according to the tailings transportation route, the tailings transportation distance, the ventilation condition, the illumination condition, and the heap leaching site laying cost, and includes:
the tailings treatment system searches a position where the tailings transportation route, the tailings transportation distance, the ventilation condition, the illumination condition and the heap leaching site laying cost are optimally balanced in task information of a treatment task based on a tabu search algorithm, and the position is used as a heap leaching position matched with initial tailings.
With reference to the first aspect of the present application, in a sixth possible implementation manner of the first aspect of the present application, the outputting, by a tailings processing system, the obtained target tailings includes:
the tailing processing system determines the greening surface soil position adapted to the target tailing;
the tailing processing system plans a transportation path of target tailing by combining the configured vehicles and greening surface soil positions;
the tailings treatment system issues the transportation path to User Equipment (UE) corresponding to the target vehicle in the form of a transportation task, so that a driver at the UE side transports the target tailings to a greening surface soil position according to the transportation path, and soil required by greening operation is provided.
In a second aspect, the present application provides a tailings treatment apparatus, comprising:
the acquiring unit is used for acquiring a processing task of initial tailings;
the determining unit is used for determining a heap leaching position matched with the initial tailings;
the acquisition unit is also used for acquiring aerobic bacteria and facultative anaerobic bacteria treated by MICP;
the heap leaching reaction unit is used for mixing initial tailings, domestic wastewater and straws at a heap leaching position after anti-seepage treatment, adding a microbial liquid obtained by culturing aerobic bacteria and facultative anaerobic bacteria, and carrying out MICP treatment heap leaching reaction;
and the output unit is used for outputting the obtained target tailings after the heap leaching reaction result is determined to be qualified.
With reference to the second aspect of the present application, in a first possible implementation manner of the second aspect of the present application, the obtaining unit is specifically configured to
Respectively mixing a preset number of initial aerobic bacteria and initial facultative anaerobic bacteria with initial tailings;
mixing the initial aerobic bacteria and the initial facultative anaerobic bacteria with domestic wastewater respectively;
based on the two mixing treatments, the aerobic bacteria and facultative anaerobic bacteria for MICP treatment, which are the best in tolerance, were identified and cultured.
With reference to the second aspect of the present application, in a second possible implementation manner of the second aspect of the present application, the apparatus further includes a triggering unit, configured to:
determining heavy metal elements in the initial tailings;
judging whether the heavy metal element measurement result of the initial tailings meets the heavy metal element requirement of MICP treatment;
determining nutrient substances in the domestic wastewater;
judging whether the determination result of the nutrient substances of the domestic wastewater meets the requirement of the nutrient substances for MICP treatment;
and if the requirements of heavy metal elements and nutrients are met, triggering and determining the heap leaching position matched with the initial tailings.
With reference to the second aspect of the present application, in a third possible implementation manner of the second aspect of the present application, the determining unit is further configured to:
monitoring the heavy metal element content, the N element content, the P element content and the K element content of the tailings in the heap leaching reaction;
and when the heavy metal element content, the N element content, the P element content and the K element content of the tailings in the heap leaching reaction meet the preset soil use requirements, determining that the heap leaching reaction result is qualified.
With reference to the second aspect of the present application, in a fourth possible implementation manner of the second aspect of the present application, the determining unit is specifically configured to:
and determining the heap leaching position matched with the initial tailings according to the tailings transportation route, the tailings transportation distance, the domestic wastewater transportation route, the domestic wastewater transportation distance, the straw transportation route, the straw transportation distance, the ventilation condition, the illumination condition and the heap leaching site laying cost.
With reference to the fourth possible implementation manner of the second aspect of the present application, in a fifth possible implementation manner of the second aspect of the present application, the determining unit is specifically configured to:
based on a tabu search algorithm, in the task information of the processing task, a position where the optimal balance among the tailing transportation route, the tailing transportation distance, the ventilation condition, the illumination condition and the heap leaching site laying cost is obtained is searched and used as a heap leaching position matched with the initial tailing.
With reference to the second aspect of the present application, in a sixth possible implementation manner of the second aspect of the present application, the output unit is specifically configured to:
determining a greening surface soil position matched with the target tailings;
planning a transportation path of the target tailings by combining the configured vehicles and the greening surface soil position;
and issuing the transportation path to the UE corresponding to the target vehicle in the form of a transportation task, so that a driver at the UE side transports the target tailings to a greening surface soil position according to the transportation path, and providing soil required by greening operation.
In a third aspect, the present application provides a tailings processing system, which includes a processor and a memory, where the memory stores a computer program, and the processor executes the method provided by the first aspect of the present application or any one of the possible implementation manners of the first aspect of the present application when calling the computer program in the memory.
In a fourth aspect, the present application provides a computer-readable storage medium storing a plurality of instructions adapted to be loaded by a processor to perform the method provided in the first aspect of the present application or any one of the possible implementations of the first aspect of the present application.
From the above, the present application has the following advantageous effects:
aiming at the treatment of tailings, the tailing treatment system determines a heap leaching position adapted to initial tailings after obtaining a treatment task of the initial tailings, obtains aerobic bacteria and facultative anaerobic bacteria for MICP treatment, then mixes the initial tailings, domestic wastewater and straws at the heap leaching position after anti-seepage treatment, adds microbial liquid obtained by culturing the aerobic bacteria and the facultative anaerobic bacteria, performs heap leaching reaction for MICP treatment, and outputs the obtained target tailings after determining that the result of the heap leaching reaction is qualified.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic flow diagram of a tailings treatment process of the present application;
FIG. 2 is a process flow diagram of a tailings treatment system of the present application;
FIG. 3 is a schematic structural view of a tailings disposal apparatus of the present application;
FIG. 4 is a schematic diagram of a tailings disposal system according to the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.
The terms "first," "second," and the like in the description and in the claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Moreover, the terms "comprises," "comprising," and any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or modules is not necessarily limited to those steps or modules explicitly listed, but may include other steps or modules not expressly listed or inherent to such process, method, article, or apparatus. The naming or numbering of the steps appearing in the present application does not mean that the steps in the method flow have to be executed in the chronological/logical order indicated by the naming or numbering, and the named or numbered process steps may be executed in a modified order depending on the technical purpose to be achieved, as long as the same or similar technical effects are achieved.
The division of the modules presented in this application is a logical division, and in practical applications, there may be another division, for example, multiple modules may be combined or integrated into another system, or some features may be omitted, or not executed, and in addition, the shown or discussed coupling or direct coupling or communication connection between each other may be through some interfaces, and the indirect coupling or communication connection between the modules may be in an electrical or other similar form, which is not limited in this application. The modules or sub-modules described as separate components may or may not be physically separated, may or may not be physical modules, or may be distributed in a plurality of circuit modules, and some or all of the modules may be selected according to actual needs to achieve the purpose of the present disclosure.
Before describing the tailings treatment method provided by the present application, the background related to the present application will be described first.
The tailing processing method, the tailing processing device and the computer-readable storage medium can be applied to a tailing processing system and are used for introducing MICP (micro-emulsion-particle) processing and realizing low-cost and low-pollution treatment on the tailing.
The execution main body of the tailing processing method can be a tailing processing device or a tailing processing system integrated with the tailing processing device. The device can be realized in a hardware or software mode, and the tailing processing system can be arranged in an equipment cluster mode.
Specifically, it is easy to understand that in practical application, the tailing processing system is generally formed by a plurality of devices so as to achieve the processing purposes in the aspects of conveying the tailing, domestic wastewater, straw or MICP processing and the like inside and outside the system, that is, the tailing processing method provided by the application is executed in a systematic operation, and the corresponding tailing processing system is a systematic device cluster.
In a tailings disposal system, which comprises a control center for executing data disposal and a terminal execution component, the application proposes the tailings disposal method related to the tailings disposal system from an integral level.
First, referring to fig. 1, fig. 1 shows a schematic flow chart of a tailings treatment method according to the present application, and the tailings treatment method provided by the present application may specifically include the following steps S101 to S105:
s101, a tailing processing system acquires a processing task of initial tailing;
it will be appreciated that in practice, the handling of tailings is typically triggered in the form of a task.
The tailings in the initial stage of the task may be referred to as initial tailings, and the corresponding processing task may be manually triggered by a worker, for example, initiating and entering the processing task to the tailings processing system through the UE. The UE may be different types of terminal devices such as a desktop computer, a notebook computer, a smart phone, a tablet computer, a Personal Digital Assistant (PDA), and the like, and may be included in the tailings processing system or may be independent of the tailings processing system.
Alternatively, the processing task may be monitored by the tailings processing system, for example, when the tailings are detected to exist at the preset tailings throwing inlet and position, the tailings may be identified as the initial tailings and a corresponding processing task may be generated to perform the tailings processing.
It can be seen from this that, the processing task for the initial tailings in step S101 may be received from other devices, or may be initiated autonomously, and a specific acquisition form of the processing task has various possibilities in practical applications, and may be adjusted according to practical situations, which is not limited specifically herein.
Step S102, the tailing processing system determines a heap leaching position matched with initial tailing;
it will be appreciated that the present application for the treatment of tailings introduces MICP treatment which involves heap leaching reactions during the treatment, which means that a heap leaching site is required to provide a site for heap leaching reactions.
Therefore, after the processing task of the initial tailings under the current condition is obtained, the tailings processing system needs to determine, allocate and select the adaptive heap leaching position.
The currently adapted heap leaching position may be selected from the heap leaching positions in the preset configuration, or a new, currently adapted heap leaching position may be selected from the existing heap leaching position adaptation range.
It will be appreciated that the heap leach location, which relates to the processing of the site for MICP processing, and therefore the heap leach location adapted for the current initial tailings or current processing job, may be determined from the existing historical heap leach locations, or may be configured with new, adapted heap leach locations by associated equipment, and may be adjusted accordingly.
As a practical implementation manner, before determining the heap leaching position, it may be determined whether the initial tailings of the current triggered processing task meet the requirement or condition for performing waste processing through MICP processing by the tailings processing method of the present application, and obviously, if it is determined that the initial tailings are not suitable for performing waste processing through MICP processing by the tailings processing method of the present application, it is not necessary to execute the subsequent specific processing task items.
As a judgment condition, the tailings treatment system can determine heavy metal elements in the initial tailings, then judge whether the heavy metal element determination result of the initial tailings meets the heavy metal element requirement of MICP treatment, and if the heavy metal element requirement is met, trigger determination of the heap leaching position adapted to the initial tailings and subsequent specific treatment task items.
Similarly, the screening mechanism can also be provided for domestic wastewater related to MICP treatment in the application, and the tailings treatment system is used for measuring nutrient substances in the domestic wastewater, judging whether the nutrient substance measurement result of the domestic wastewater meets the nutrient substance requirement of the MICP treatment or not, and if the nutrient substance measurement result meets the nutrient substance requirement, triggering and determining the heap leaching position matched with initial tailings and subsequent specific treatment task items.
In addition, in specific application, whether the heavy metal elements in the initial tailings and the nutrient substances in the domestic wastewater meet the requirements or not can be judged, if the heavy metal elements in the initial tailings and the nutrient substances in the domestic wastewater meet the requirements, the heap leaching position matched with the initial tailings and subsequent specific treatment task items can be triggered and determined, and the rigor and systematicness of MICP treatment can be further promoted.
For the specific determination of the heap leaching position, consideration may be given to influence factors that may be involved in practical applications, for example, economic cost, environmental cost, labor cost, and the like.
As a specific example, the tailings disposal system in determining the heap leach location for initial tailings adaptation may specifically include the following:
the tailings treatment system determines the heap leaching position of the initial tailings adaptation according to the tailings transportation route, the tailings transportation distance, the domestic wastewater transportation route, the domestic wastewater transportation distance, the straw transportation route, the straw transportation distance, the ventilation condition, the illumination condition (shady effect), and the heap leaching site laying cost (laying cost of specific site topography).
Generally speaking, the method is based on MICP treatment, tailings after mine ore dressing need to be treated, and domestic wastewater, straws and microorganisms are needed.
Therefore, the using place is selected near the ore dressing plant to shorten the transportation distance of the tailings, and then the domestic sewage and the straws are taken from the nearby cities and villages, and the using place is preferably selected near the mines at the urban and rural junctions, so that the used waste materials are easy to obtain;
in addition, the reconstructed initial tailings can be mainly used for surface soil for urban greening, and the reconstructed soil can be directly used at urban and rural junctions, so that the method is convenient to transport and low in cost.
Moreover, taking the microorganism used for MICP treatment as the example of the Bacillus pasteurianus, the Bacillus pasteurianus is an aerobic bacterium and needs sufficient oxygen in the survival and propagation processes, so the heap leaching position is selected to be a place with better natural ventilation;
because ultraviolet rays have a certain inhibiting effect on microorganisms, the heap leaching position also has shady conditions, so that excessive direct sunlight is prevented;
the heap leaching position is selected at the valley around the mine according to the terrain, and the heap leaching position has natural depression, is convenient to store, and reduces the site excavation and leveling cost.
It is clear that the selection of a suitable heap leach site, including site specific sites on the site, is of great significance for the MICP process.
Further, in the process of determining the heap leaching position by combining the influence factors, the tailings disposal system can specifically combine the search algorithm to select the optimal position.
As another practical implementation, the tailings disposal system may search, based on a tabu search algorithm, a position where the tailings transportation route, the tailings transportation distance, the ventilation condition, the illumination condition, and the heap leaching site laying cost are optimally balanced in the task information of the disposal task, as a heap leaching position for initial tailings adaptation.
It can be understood that the tabu search algorithm can be understood as a modern heuristic algorithm, and the popular point is a search method for skipping the local optimal solution, and the general search principle can be understood as creating an initialized scheme, then "moving" the algorithm to an adjacent scheme based on the initialized scheme, and determining the scheme for obtaining the most suitable solution through a plurality of continuous moving processes, thereby improving the quality of the solution.
In addition, in addition to the tabu search algorithm, in practical applications, for the search of the heap leaching position, other different types of search algorithms such as an ant colony algorithm, a simulated annealing algorithm, and the like may also be used, which is not specifically limited herein.
It is worth integrating that, for the selection of the heap leaching position, the transportation path related to the heap leaching position can be understood to include path planning processing to a certain extent, so that the selected heap leaching position can have the shortest transportation time or the shortest transportation path length generally, and under the condition of lower processing cost, the tailing processing efficiency is improved, and the tailing processing in practical application is more stable and reliable.
Step S103, the tailing processing system obtains aerobic bacteria and facultative anaerobic bacteria processed by MICP;
in addition, in addition to the heap leaching site for MICP treatment, the tailings treatment system also needs to acquire MICP-adapted aerobic bacteria and facultative anaerobic bacteria for performing specific biological reactions on the tailings in the field of the heap leaching site.
For example, for MICP treatment, the principle of MICP treatment based on hydrolysis of Bacillus pasteurii urea is that Bacillus pasteurii decomposes urea to produce ammonia and carbon dioxide, the ammonia combines with water to raise the pH of the environment, and the carbon dioxide combines with calcium ions in the environment under alkaline conditions to finally form calcium carbonate and precipitate, and the reaction equation is as follows:
CO(NH2)2+H2O→CO2+2NH3，
CO2+H2O→H2CO3，
Ca2++Cell→Cell-Ca2+，
in addition, since aerobic bacteria have a large demand for oxygen and thus it is difficult to perform MICP treatment in an internal anoxic environment, for example, MICP treatment based on denitrification by facultative anaerobes (catarrhalis denitrificans) may be introduced, and the reaction equation is as follows:
CO2+H2O→H2CO3，
as can be seen from the above mentioned reaction formulas, the biological reaction realized by the MICP treatment of the present invention involves the configuration of two kinds of strains, aerobic bacteria and facultative anaerobic bacteria, so that the MICP treatment can achieve both high-oxygen condition and low-oxygen condition, and realize good tailing treatment effect.
As another practical implementation, the acquisition of aerobic bacteria and facultative anaerobic bacteria may specifically include the following:
respectively mixing a preset number of initial aerobic bacteria and initial facultative anaerobic bacteria with initial tailings by a tailings treatment system;
the tailing processing system mixes the initial aerobic bacteria and the initial facultative anaerobic bacteria with domestic wastewater respectively;
the tailings disposal system identifies aerobic bacteria and facultative anaerobic bacteria for MICP treatment, which have the best tolerance, based on the two mixed treatments, and cultures them.
For example, in practical application, 3 initial aerobic bacteria and 3 initial facultative anaerobic bacteria may be pre-configured and mixed with the tailings and the domestic wastewater, respectively, after a period of time, the number of microorganisms corresponding to different strains is tested, the tolerance of different microorganisms to the tailings and the domestic wastewater is determined, and then one aerobic bacteria and one facultative anaerobic bacteria with the best tolerance are selected respectively as the aerobic bacteria and the facultative anaerobic bacteria adapted to the MICP treatment.
It can be understood that the aerobic bacteria and the facultative anaerobes can be further enhanced through the matching of the aerobic bacteria and the facultative anaerobes, and the MICP treatment, the tailings and the domestic wastewater which need to be treated at this time have higher adaptability, so that the waste treatment realized by the MICP treatment has higher treatment effect.
Step S104, mixing the initial tailings, the domestic wastewater and the straws at the heap leaching position after the anti-seepage treatment by a tailings treatment system, adding a microbial liquid obtained by culturing aerobic bacteria and facultative anaerobic bacteria, and carrying out the heap leaching reaction of MICP treatment;
after having the heap leaching site and the two types of strains, the specific MICP treatment, i.e., the heap leaching reaction, may be performed at the heap leaching site based on the two types of strains.
It is noted that in heap leaching, two waste materials, namely domestic wastewater and straw, are involved, and from this point, the application can treat the waste materials of both domestic wastewater and straw together in addition to the waste materials of tailings.
It is understood that the MICP treatment of the present application induces carbonate precipitation and consolidates heavy metals in the tailings, which prevents extensive diffusion and contamination of the soil environment.
Specifically, MICP treatment follows the principle of microbe induced mineralization, which is a phenomenon existing in nature, many microbes have the capacity, heavy metals are mainly combined with carbonate ions to precipitate or are coprecipitated with calcium carbonate to be removed in the MICP treatment process of the microbes, but the soil physicochemical properties are complex, the microbes are various, the geochemical behaviors of the microbes on the heavy metals also comprise bioadsorption and enrichment, oxidation-reduction, leaching and the like, and the effects of the microbes and the heavy metals are different in different environments.
Returning to the MICP treatment related by the application, the method can remove heavy metal ions in the tailings by utilizing the action of consolidating the heavy metal ions by microorganisms, can also consume nutrient substances in domestic sewage, reduces eutrophication, finally enables the tailings to achieve the transformation, can meet the requirements of vegetation growth, and can be used as soil for greening operation.
Wherein, the tailings comprise basic mineral composition in the soil and are the mineral composition source of the soil after reconstruction;
for domestic wastewater, a large amount of nutrient substances and urea exist, and can provide nutrient substances necessary for survival and propagation and raw materials participating in the action of MICP for microorganisms;
as for the straws, the decayed straws not only can provide a carbon source for microorganisms, but also can provide attachment space for carbonate precipitates generated by the action of MICP, and the attachment function is similar to that of fibers.
In addition, for the heap leaching position, the method can also comprise the anti-seepage treatment of the site, and in practical application, the treatment standard is similar to or the same as the anti-seepage treatment of a contaminated tailing pond, so that harmful substances in the tailings and the domestic wastewater are prevented from permeating into the underground before being completely fixed, and the soil and the underground water are prevented from being contaminated.
In addition, the anti-seepage treatment of the heap leaching position can also be a non-disposable project, because the heap leaching time is shorter than the stockpiling time of a tailing pond, the anti-seepage structure can be continuously used, and if the same heap leaching position is adopted subsequently, the site does not need to be subjected to anti-seepage treatment again, and the anti-seepage treatment can be used when the anti-seepage treatment is checked to be complete or reinforced.
And step S105, outputting the obtained target tailings by the tailings treatment system after determining that the heap leaching reaction result is qualified.
During the MICP treatment process or after the preset MICP treatment time is reached, the heap leaching reaction result can be measured, whether the reaction is sufficient or not is judged, and the qualified condition is reached.
If the condition that the heap leaching reaction result is qualified is met, the MICP treatment can be stopped, the tailings at the moment, namely the target tailings, are output, and the tailings which can meet the requirements of growing vegetation and can be used as soil for greening operation at the moment are subjected to specific output work according to subsequent use requirements and transportation strategies.
As another practical implementation manner, the processing for determining whether the condition for qualifying the result of the heap leaching reaction is satisfied may specifically include:
monitoring the heavy metal element content, the N element content, the P element content and the K element content of the tailings in the heap leaching reaction by a tailings treatment system;
and when the heavy metal element content, the N element content, the P element content and the K element content of the tailings in the heap leaching reaction meet the preset soil use requirements, determining that the heap leaching reaction result is qualified by the tailings treatment system.
It will be appreciated that in particular operations, the qualification of the reaction results may be determined from the elemental content in combination with a corresponding elemental content threshold, which may be determined, for example, by the use criteria of the soil available for greening, and may be adjusted in combination with the range of elemental content variations that may be achieved by MICP treatment.
In addition, the target tailings after completing the MICP treatment may also be specifically related to the transportation of the tailings from the inside of the system to the outside of the system during the output process, that is, the planning of the transportation path of the tailings and the implementation of the transportation operation thereof may also be related.
That is, the output process may specifically include the following:
the tailing processing system determines the greening surface soil position adapted to the target tailing;
the tailing processing system plans a transportation path of target tailing by combining the configured vehicles and greening surface soil positions;
and the tailing processing system issues the transportation path to UE corresponding to the target vehicle in the form of a transportation task, so that a driver at the UE side transports the target tailing to a greening surface soil position according to the transportation path, and soil required by greening operation is provided.
It is understood that in the planning process of the transportation path, the location of the target tailings (generally, the heap leaching location) may be used as a starting point, the greening surface soil location of the target tailings used as soil for greening operation may be used as an end point, and the adaptive or optimal transportation path may be planned by combining the influence factors (such as vehicle speed, transportation distance, transportation duration, transportation path, etc.) that may be involved.
The planning of the transportation path of the target tailings is similar to the transportation path considered in the heap leaching position selection processing process, and specifically, a path which obtains optimal balance among different influence factors can be searched on the basis of other different types of search algorithms such as a tabu search algorithm, an ant colony algorithm, a simulated annealing algorithm and the like, so that the target tailings are transported.
Secondly, after the transportation path of the target tailings is determined, the tailings treatment system can also be directly issued to a driver corresponding to the vehicle side in a task form, the driver is directly arranged to execute final transportation operation, and the use of the target tailings (soil improvement) is completely implemented.
It is worth mentioning that, for the target tailings, while providing surface soil for urban greening, the pasteurella in the tailings can continue to perform MICP action to a certain extent, and the formed calcium carbonate is connected into a layer of hard protective shell on the upper part of the surface soil, so that the effect of effectively preventing the surface soil of the urban greening belt from dusting can be further achieved.
At this moment, it can be seen that the tailing processing method of the application mainly can bring the following obvious benefits:
reasonably utilizing the tailings, and removing heavy metal ions in the tailings for normal use in greening;
the domestic sewage is treated, and urea and nutrient substances in the domestic sewage are consumed, so that the domestic sewage reaches the standard suitable for discharge;
the straws are treated to prevent carbon dioxide generated by burning from increasing carbon emission and hindering the realization of carbon neutralization;
the reconstructed soil can be used as greening surface soil around the city to prevent dust.
To facilitate an understanding of the foregoing, reference is also made to FIG. 2, which is a process flow diagram of the tailings treatment system of the present application, shown generally, and as seen in FIG. 2, which includes most of the above-mentioned, including exemplary, specific implementations.
Finally, in general, for the treatment of tailings, the tailing treatment system of the application determines the heap leaching position adapted to the initial tailings after the treatment task of obtaining the initial tailings, obtains aerobic bacteria and facultative anaerobic bacteria for MICP treatment, then at the heap leaching position after the anti-seepage treatment, mixing the initial tailings, the domestic wastewater and the straws, adding a microbial liquid obtained by culturing aerobic bacteria and facultative anaerobic bacteria, carrying out the heap leaching reaction of MICP treatment, outputting the obtained target tailings after the result of the heap leaching reaction is determined to be qualified, the initial tailings, domestic wastewater and straws are recycled, the tailings even including the domestic wastewater and the straws are treated in a low-cost and low-pollution manner, the output target tailings can be used as soil for greening operation, and the win-win effect of waste treatment and greening environmental protection is realized.
The introduction of the tailing processing method provided by the application is provided, so that the tailing processing method provided by the application is better implemented, and the application also provides a tailing processing device from the perspective of a functional module.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a tailings disposal device according to the present application, in which the tailings disposal device 300 specifically includes the following structure:
an obtaining unit 301, configured to obtain a processing task of initial tailings;
a determining unit 302, configured to determine a heap leaching position of the initial tailings adaptation;
an acquisition unit 301, configured to acquire aerobic bacteria and facultative anaerobic bacteria for MICP treatment;
a heap leaching reaction unit 303, configured to mix the initial tailings, domestic wastewater, and straws at a heap leaching position after the anti-seepage treatment, and add a microbial solution obtained by culturing aerobic bacteria and facultative anaerobic bacteria to perform a heap leaching reaction of MICP treatment;
and the output unit 304 is configured to output the obtained target tailings after determining that the heap leaching reaction result is qualified.
In an exemplary implementation, the obtaining unit 301 is specifically configured to
Respectively mixing a preset number of initial aerobic bacteria and initial facultative anaerobic bacteria with initial tailings;
mixing the initial aerobic bacteria and the initial facultative anaerobic bacteria with domestic wastewater respectively;
based on the two mixing treatments, the aerobic bacteria and facultative anaerobic bacteria for MICP treatment, which are the best in tolerance, were identified and cultured.
In yet another exemplary implementation, the apparatus further includes a triggering unit 305 configured to:
determining heavy metal elements in the initial tailings;
judging whether the heavy metal element measurement result of the initial tailings meets the heavy metal element requirement of MICP treatment;
determining nutrient substances in the domestic wastewater;
judging whether the determination result of the nutrient substances of the domestic wastewater meets the requirement of the nutrient substances for MICP treatment;
and if the requirements of heavy metal elements and nutrients are met, triggering and determining the heap leaching position matched with the initial tailings.
In another exemplary implementation, the determining unit 302 is further configured to:
monitoring the heavy metal element content, the N element content, the P element content and the K element content of the tailings in the heap leaching reaction;
and when the heavy metal element content, the N element content, the P element content and the K element content of the tailings in the heap leaching reaction meet the preset soil use requirements, determining that the heap leaching reaction result is qualified.
In another exemplary implementation manner, the determining unit 302 is specifically configured to:
and determining the heap leaching position matched with the initial tailings according to the tailings transportation route, the tailings transportation distance, the domestic wastewater transportation route, the domestic wastewater transportation distance, the straw transportation route, the straw transportation distance, the ventilation condition, the illumination condition and the heap leaching site laying cost.
In another exemplary implementation manner, the determining unit 302 is specifically configured to:
based on a tabu search algorithm, in the task information of the processing task, a position where the optimal balance among the tailing transportation route, the tailing transportation distance, the ventilation condition, the illumination condition and the heap leaching site laying cost is obtained is searched and used as a heap leaching position matched with the initial tailing.
In another exemplary implementation manner, the output unit 303 is specifically configured to:
determining a greening surface soil position matched with the target tailings;
planning a transportation path of the target tailings by combining the configured vehicles and the greening surface soil position;
and issuing the transportation path to the UE corresponding to the target vehicle in the form of a transportation task, so that a driver at the UE side transports the target tailings to a greening surface soil position according to the transportation path, and providing soil required by greening operation.
The present application further provides a tailings disposal system from a hardware structure perspective, where the tailings disposal system is composed of different disposal devices, referring to fig. 4, fig. 4 shows a schematic structural diagram of the tailings disposal system from a device perspective, specifically, the tailings disposal system may include a processor 401, a memory 402, and an input/output device 403, where the processor 401 is configured to implement the steps of the tailings disposal method in the corresponding embodiment of fig. 1 when executing a computer program stored in the memory 402; alternatively, the processor 401 is configured to implement the functions of the units in the embodiment corresponding to fig. 3 when executing the computer program stored in the memory 402, and the memory 402 is configured to store the computer program required by the processor 401 to execute the method for processing the tailings in the embodiment corresponding to fig. 1.
Illustratively, a computer program may be partitioned into one or more modules/units, which are stored in memory 402 and executed by processor 401 to accomplish the present application. One or more modules/units may be a series of computer program instruction segments capable of performing certain functions, the instruction segments being used to describe the execution of a computer program in a computer device.
The tailings disposal system may include, but is not limited to, a processor 401, a memory 402, and an input-output device 403. It will be understood by those skilled in the art that the illustration is merely an example of a tailings disposal system and is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or different components, for example, the tailings disposal system may also include a network access device, a bus, etc., through which the processor 401, memory 402, input output device 403, etc., are coupled.
The Processor 401 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like, the processor being the control center for the tailings disposal system, with various interfaces and lines connecting the various parts of the overall apparatus.
The memory 402 may be used to store computer programs and/or modules, and the processor 401 may implement various functions of the computer device by running or executing the computer programs and/or modules stored in the memory 402 and invoking data stored in the memory 402. The memory 402 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function, and the like; the storage data area may store data created from use of the tailings disposal system, and the like. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
The processor 401, when executing the computer program stored in the memory 402, may specifically implement the following functions:
acquiring a processing task of initial tailings;
determining a heap leaching position adapted to the initial tailings;
acquiring aerobic bacteria and facultative anaerobic bacteria treated by MICP;
mixing the initial tailings, domestic wastewater and straws at a heap leaching position after anti-seepage treatment, adding a microbial liquid obtained by culturing aerobic bacteria and facultative anaerobic bacteria, and carrying out heap leaching reaction of MICP treatment;
and outputting the obtained target tailings after the heap leaching reaction result is determined to be qualified.
It can be clearly understood by those skilled in the art that, for convenience and brevity of description, the specific working processes of the tailings treatment apparatus and system and the corresponding units thereof described above may refer to the description of the tailings treatment method in the corresponding embodiment of fig. 1, and are not described herein again in detail.
It will be understood by those skilled in the art that all or part of the steps of the methods of the above embodiments may be performed by instructions or by associated hardware controlled by the instructions, which may be stored in a computer readable storage medium and loaded and executed by a processor.
Therefore, the present application provides a computer-readable storage medium, in which a plurality of instructions are stored, where the instructions can be loaded by a processor to execute the steps of the method for processing tailings in the embodiment corresponding to fig. 1 in the present application, and specific operations may refer to the description of the method for processing tailings in the embodiment corresponding to fig. 1, which is not described herein again.
Wherein the computer-readable storage medium may include: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like.
Because the instructions stored in the computer-readable storage medium can execute the steps of the tailings processing method in the embodiment corresponding to fig. 1, the beneficial effects that can be achieved by the tailings processing method in the embodiment corresponding to fig. 1 can be achieved, and the instructions are described in detail in the foregoing description and are not repeated herein.
The method, the apparatus, the system and the computer-readable storage medium for processing tailings provided by the present application are described in detail above, and a specific example is applied in the present application to explain the principle and the implementation of the present application, and the description of the above embodiment is only used to help understanding the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A method of tailings treatment, the method comprising:
a tailing processing system acquires a processing task of initial tailing;
the tailings treatment system determines a heap leaching position adapted by the initial tailings;
the tailing processing system acquires aerobic bacteria and facultative anaerobic bacteria processed by a microorganism induced calcium carbonate precipitation technology MICP;
in the heap leaching position after anti-seepage treatment, the tailing treatment system mixes the initial tailing, domestic wastewater and straws, and adds the microbial solution obtained by culturing the aerobic bacteria and the facultative anaerobic bacteria to carry out heap leaching reaction of MICP treatment;
and after determining that the heap leaching reaction result is qualified, outputting the obtained target tailings by the tailings treatment system.
2. The method of claim 1, wherein the tailings treatment system obtains aerobic bacteria and facultative anaerobic bacteria treated by MICP (microbial induced calcium carbonate precipitation) technology, comprising:
the tailing processing system mixes a preset number of initial aerobic bacteria and initial facultative anaerobic bacteria with the initial tailing respectively;
the tailing processing system mixes the initial aerobic bacteria and the initial facultative anaerobic bacteria with the domestic wastewater respectively;
the tailings disposal system determines the aerobic bacteria and the facultative anaerobic bacteria for MICP treatment with the best tolerance based on two mixed treatments, and cultures them.
3. The method of claim 1, wherein prior to the tailings disposal system determining the initial tailings-adapted heap leach location, the method further comprises:
the tailings treatment system is used for measuring heavy metal elements in the initial tailings;
the tailings treatment system judges whether the heavy metal element measurement result of the initial tailings meets the heavy metal element requirement of MICP treatment;
the tailings treatment system is used for measuring nutrient substances in the domestic wastewater;
the tailings treatment system judges whether the determination result of the nutrient substances of the domestic wastewater meets the nutrient substance requirement of the MICP treatment;
and if the heavy metal element requirement and the nutrient substance requirement are met, triggering and determining the heap leaching position matched with the initial tailings by the tailings treatment system.
4. The method of claim 1, wherein prior to the tailings treatment system outputting the obtained target tailings after the heap leaching reaction result is determined to be qualified, the method further comprises:
the tailing processing system monitors the heavy metal element content, the N element content, the P element content and the K element content of the tailing in the heap leaching reaction;
and when the heavy metal element content, the N element content, the P element content and the K element content of the tailings in the heap leaching reaction meet the preset soil use requirements, determining that the heap leaching reaction result is qualified by the tailings treatment system.
5. The method of claim 1, wherein the tailings processing system determines the initial tailings-adapted heap leach location, comprising:
and the tailing processing system determines the heap leaching position adapted to the initial tailing according to a tailing transportation route, a tailing transportation distance, a domestic wastewater transportation route, a domestic wastewater transportation distance, a straw transportation route, a straw transportation distance, a ventilation condition, an illumination condition and a heap leaching site laying cost.
6. The method of claim 5, wherein the determining, by the tailings disposal system, the initial tailings adapted heap leach location based on tailings transportation routes, tailings transportation distances, ventilation conditions, lighting conditions, heap leach site paving costs comprises:
and the tailing processing system searches a position where the tailing transportation route, the tailing transportation distance, the ventilation condition, the illumination condition and the heap leaching site laying cost are in optimal balance in task information of a processing task based on a tabu search algorithm, and the position is used as a heap leaching position matched with the initial tailing.
7. The method of claim 1, wherein the tailings treatment system outputs the resulting target tailings, comprising:
the tailing processing system determines a greening surface soil position matched with the target tailing;
the tailing processing system is combined with the configured vehicle and the greening surface soil position to plan a transportation path of the target tailing;
and the tailing processing system issues the transportation path to User Equipment (UE) corresponding to a target vehicle in the form of a transportation task, so that a driver at the UE side transports the target tailing to the greening surface soil position according to the transportation path, and soil required by greening operation is provided.
8. A tailings disposal apparatus, comprising:
the acquiring unit is used for acquiring a processing task of initial tailings;
the determining unit is used for determining the heap leaching position adapted to the initial tailings;
the acquisition unit is also used for acquiring aerobic bacteria and facultative anaerobic bacteria treated by a microorganism induced calcium carbonate precipitation technology MICP;
a heap leaching reaction unit, which is used for mixing the initial tailings, domestic wastewater and straws at the heap leaching position after anti-seepage treatment, adding a microbial solution obtained by culturing the aerobic bacteria and the facultative anaerobic bacteria, and carrying out heap leaching reaction of MICP treatment;
and the output unit is used for outputting the obtained target tailings after the heap leaching reaction result is determined to be qualified.
9. A tailings treatment system comprising a processor and a memory, the memory having a computer program stored therein, the processor when calling the computer program in the memory performing the method of any of claims 1 to 7.
10. A computer-readable storage medium storing a plurality of instructions adapted to be loaded by a processor to perform the method of any one of claims 1 to 7.
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