CN112479502A - Device and method for deep purification treatment and reuse of mine water for production - Google Patents

Device and method for deep purification treatment and reuse of mine water for production Download PDF

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CN112479502A
CN112479502A CN202011383876.0A CN202011383876A CN112479502A CN 112479502 A CN112479502 A CN 112479502A CN 202011383876 A CN202011383876 A CN 202011383876A CN 112479502 A CN112479502 A CN 112479502A
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water
mine
tank
water storage
production
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陈宇满
李远知
杨光友
程坦
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Guizhou Panjiang Refined Coal Co Ltd
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Guizhou Panjiang Refined Coal Co Ltd
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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
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56—Macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F2001/007—Processes including a sedimentation step
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/10—Nature of the water, waste water, sewage or sludge to be treated from quarries or from mining activities
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/04—Disinfection
    • 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

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  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)

Abstract

本发明公开了一种矿井水深度净化处理回用于生产的装置及处理方法，它包括地面贮水池、高位初沉贮水调节池、回用水池和井下生产供水系统，地面贮水池通过输水管与高位初沉贮水调节池连接，高位初沉贮水调节池通过净化装置用管道与多介质过滤器连接，多介质过滤器通过膜生物反应池和回用水池连接到井下生产供水系统，在输水管上设有自动加药装置。通过加设自动加药装置和自控系统，根据进水流量的变化调节加药量，精准控制药剂用量，最大限度发挥絮凝作用。利用MBR技术，大幅度提高固液分离效率。以发生器现场制备次氯酸钠的方式对净化后的矿井水消毒，降低运行成本很低，实现准确药物投加，提高消毒效果，实现矿井水重回井下生产系统。

Figure 202011383876

The invention discloses a device and a processing method for deep purification treatment of mine water and reused for production. The device comprises a ground water storage tank, a high-level primary sedimentation water storage adjustment tank, a recycling water tank and an underground production water supply system. The ground water storage tank passes through a water delivery pipe It is connected with the high-level primary sedimentation water storage regulating tank, and the high-level primary sedimentation water storage regulating tank is connected with the multi-media filter through the purification device with the pipeline. There is an automatic dosing device on the water pipe. By adding an automatic dosing device and an automatic control system, the dosing amount can be adjusted according to the change of the influent flow, and the dosage of the drug can be precisely controlled to maximize the flocculation effect. Using MBR technology, the solid-liquid separation efficiency is greatly improved. The purified mine water is sterilized by on-site preparation of sodium hypochlorite by the generator, which reduces the operating cost and realizes accurate drug dosing, improves the disinfection effect, and realizes the return of the mine water to the underground production system.

Figure 202011383876

Description

Device and method for deep purification treatment and reuse of mine water for production
Technical Field
The invention relates to mine water treatment equipment, in particular to a device and a treatment method for deep purification treatment and reuse of mine water in production, and belongs to the technical field of mine water treatment equipment.
Background
China is one of the countries which are acknowledged to be seriously deficient in water resources of individuals in the world, along with the continuous increase of population and the rapid development of economy, the demand of industrial, agricultural and domestic water is more and more, so that the situation of fresh water resource deficiency is increasingly serious, China is the country with the largest coal yield in the world in the 21 st century, and meanwhile, the discharge amount and the production amount of mine water of coal mines are the first of industrial wastewater in China, so the level of mine water resource treatment is improved, a new mine water resource treatment technology is popularized, mine water recycling is developed for production, and mine water recycling is a necessary choice for mine development.
The mine water has the characteristics of underground water and obvious characteristics of the coal mine industry, the characteristics of the mine water depend on the geological environment of the finished coal and the chemical components of minerals of the coal bottom layer, and the mine water is closely related to the production process and the like. In order to protect the safety of underground mining production engineering and prevent mine flood caused by excessive mine water flowing into a mine tunnel, the mine water needs to be pumped out of a mine in the mining process, the treatment standard does not meet the production and discharge requirements, huge water resource waste is formed, and meanwhile pollutants contained in the mine water destroy a local ecological system.
The treatment technology and the effect are determined by the properties of the mine water and the application after treatment, when the acid and the alkali of the mine water are basically neutral and have no toxic heavy metal substances, suspended matters become the key points of purification treatment, the mine water has the difficulties of large content and concentration difference of the suspended matters, small granularity, light specific gravity and low settling speed, and the mine water also contains partial ions, a small amount of organic matters and a large amount of bacteria, the key point of treating the mine water is to remove the suspended matters and the bacteria, and how to better remove the harmful substances is the technical problem existing at present.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the device and the method for deeply purifying and reusing mine water for production are characterized in that an automatic dosing device and an automatic control system of polyaluminium chloride (PAC) and Polyacrylamide (PAM) are additionally arranged between a high-level sewage storage and regulation tank and purification equipment, so that the dosing amount is regulated according to the change of inflow, the dosage of a medicament is accurately controlled, and the flocculation effect is exerted to the maximum extent. By organically combining the MBR technology with the traditional wastewater biological treatment technology, the solid-liquid separation efficiency is greatly improved, and the CODcr and SS indexes of the mine water after deep purification are lower than specified values. The mode of preparing sodium hypochlorite on site by a generator replaces chlorine gas to disinfect the purified mine water, so that the operation cost is reduced, accurate medicine adding is realized, the disinfection effect is improved, the mine water is recycled to an underground production system, and the existing problems are effectively solved.
The technical scheme of the invention is as follows: the device comprises a ground water storage tank, a high-position primary-sedimentation water storage regulating tank, a reuse water tank and an underground production water supply system, wherein the ground water storage tank is connected with the high-position primary-sedimentation water storage regulating tank through a water pipe, the high-position primary-sedimentation water storage regulating tank is connected with a multi-medium filter through a pipeline for a purifying device, the multi-medium filter is connected to the underground production water supply system through a membrane biological reaction tank and the reuse water tank, and an automatic chemical feeding device is arranged on the water pipe.
The device is also provided with a sodium hypochlorite generating device which is connected to the reuse water pool through a pipeline.
The bottom of the purifying device is connected with a sludge concentration tank through a pipeline, and the sludge concentration tank is connected with a high-level primary sedimentation water storage regulating tank through a pipeline.
The upper part of the multi-medium filter is connected with the purification device through a pipeline.
A treatment method for deep purification treatment and reuse of mine water in a production device comprises the following steps: pumping underground mine sewage from the underground to a ground water storage tank through a pump, adjusting the water quantity entering a subsequent deep purification treatment system, conveying the mine sewage to a high-level primary sedimentation water storage adjusting tank, removing large-size floaters and suspended matters mainly comprising organic matters after intercepting the sewage, reducing the concentration of suspended solids in the sewage, overflowing the primarily filtered mine water into a pipe water conveying pipe in the high-level primary sedimentation water storage adjusting tank by utilizing high-level pressure difference of the mine water through a pipeline, connecting the water conveying pipe with an automatic dosing device of polyaluminium chloride (PAC) and Polyacrylamide (PAM), adjusting the dosing quantity according to the change of inflow water, and accurately controlling the dosing quantity of a medicament; secondly, the preliminarily filtered mine sewage, the polymeric flocculant and the coagulant aid enter a purification device, namely a labyrinth sloping plate purification treatment system, under the actions of flocculant compression double electric layers, electric neutralization, tape winding net capture, adsorption bridging and the like, COD (chemical oxygen demand) particulate matters are precipitated, larger flocs are formed among inorganic particles, a huge surface adsorption effect is increased, and the concentration of suspended matters of microorganisms and inorganic matters is greatly reduced; thirdly, the sludge treated by the purifying device is discharged to a sludge concentration tank for concentration by a siphon sludge discharge pipeline, and clear liquid returns to the high-level primary sedimentation water storage regulating tank to be mixed with subsequent mine sewage again under the action of flocculation ions, so that the operation load of the purifying device is reduced, and the cost of adding a flocculating agent is saved; fourthly, the mine sewage treated by the purification device enters a multi-medium filter, and after multi-medium filtration, activated carbon filtration and back flushing, the sewage which does not accord with the condition that the mine sewage flows out of the multi-medium filter is conveyed to the purification device again for circular treatment; the mine water meeting the discharge standard is conveyed to a membrane bioreactor, namely an MBR reaction tank, the characteristic of organic combination of a membrane separation technology and a traditional wastewater treatment technology is utilized to deeply purify the relatively purified mine water, and the suspended substance and the turbidity of the mine water after ultrafiltration meet the recycling production standard; and fifthly, discharging the deeply purified mine water to a reuse water pool, quantitatively conveying sodium hypochlorite into the reuse water pool by a sodium hypochlorite generating device, performing high-efficiency and safe strong sterilization and disinfection, and enabling the deeply purified terminal water to be recycled to the underground production water supply system through a pipeline.
The invention has the beneficial effects that: compared with the prior art, the water treatment method has the advantages that the automatic dosing device and the automatic control system are adopted, the dosing amount is adjusted according to the change of the inflow water, the dosage of the medicament is accurately controlled, the flocculation effect is exerted to the maximum extent, the situations that medicament solution concentration is too high, too low, dry powder is easy to agglomerate and the like due to inaccurate medicament dry powder addition caused by manual feeding are prevented, the mine water treatment cost is saved, the defects that a medicament solvent cannot be fully dissolved through long-time stirring, the effect is small, the effect is poor and the like are avoided, the preliminary purification quality of mine water is improved, the characteristics of stable and reliable operation are realized, the automation degree is greatly improved, and the labor intensity of workers is reduced.
According to the invention, in the primary purification process, mine water which does not meet the requirement of entering the subsequent treatment process is circulated and enters the primary purification link, so that the dosage of flocculating agents, coagulant aids and other medicaments is reduced, the subsequent mine water treatment effect is improved, the advanced treatment difficulty and the system pressure are relieved, and the advanced treatment is ensured to relieve the water quality to reach the standard.
Aiming at the characteristics of more mine water suspended matters, large difference of particle size distribution and the like, the mine water deep purification method fully utilizes the links of filtering systems such as multi-medium filtering, activated carbon filtering, back flushing and the like, performs ultrafiltration under the action of membrane bioreaction, and performs sterilization and disinfection by using a sodium hypochlorite solution, thereby ensuring that the mine water suspended matters, turbidity and the like after deep purification meet production indexes, and ensuring the safe use of the treated mine water.
Drawings
FIG. 1 is a schematic flow chart of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
Example 1: as shown in the attached figure 1, the device for deep purification treatment and reuse of mine water for production comprises a ground water storage tank 1, a high-position primary-sedimentation water storage regulating tank 2, a reuse water tank 9 and an underground production water supply system 11, wherein the ground water storage tank 1 is connected with the high-position primary-sedimentation water storage regulating tank 2 through a water pipe 3, the high-position primary-sedimentation water storage regulating tank 2 is connected with a multi-medium filter 7 through a purification device 5 by a pipeline, the multi-medium filter 7 is connected to the underground production water supply system 11 through a membrane biological reaction tank 8 and the reuse water tank 9, and an automatic chemical feeding device 4 is arranged on the water pipe 3.
Further, the device is also provided with a sodium hypochlorite generating device 10, and the sodium hypochlorite generating device 10 is connected to the reuse water tank 9 through a pipeline.
Further, the bottom of the purifying device 5 is connected with a sludge concentration tank 6 through a pipeline, and the sludge concentration tank 6 is connected with the high-level primary sedimentation water storage regulating tank 2 through a pipeline.
Further, the upper part of the multimedia filter 7 is connected to the purification apparatus 5 through a pipe.
A treatment method for deep purification treatment and reuse of mine water in a production device comprises the following steps: pumping underground mine sewage from the underground to a ground water storage tank 1 through a pump, adjusting the water quantity entering a subsequent deep purification treatment system, conveying the mine sewage to a high-level primary sedimentation water storage adjusting tank 2, removing large-size floaters and suspended matters mainly comprising organic matters after the sewage is intercepted, reducing the concentration of suspended solids in the sewage, overflowing preliminarily filtered mine water into a pipe water conveying pipe 3 in the high-level primary sedimentation water storage adjusting tank 2 through a pipeline by utilizing the high-level pressure difference of the mine water, connecting the water conveying pipe 3 with an automatic dosing device 4 of polyaluminium chloride PAC and Polyacrylamide (PAM), adjusting the dosing quantity according to the change of inflow water, and accurately controlling the dosing quantity; secondly, the preliminarily filtered mine sewage, the polymeric flocculant and the coagulant aid enter a purification device 5, namely a labyrinth sloping plate purification treatment system, under the actions of flocculant compression double electric layers, electric neutralization, tape winding net capture, adsorption bridging and the like, COD (chemical oxygen demand) particulate matters are precipitated, larger flocs are formed among inorganic particles, the huge surface adsorption effect is increased, and the suspended matter concentration of microorganisms and inorganic matters is greatly reduced; thirdly, the sludge treated by the purifying device 5 is discharged to a sludge concentration tank 6 for concentration by a siphon sludge discharge pipeline, and clear liquid returns to the high-level primary sedimentation water storage regulating tank 2 to be mixed with subsequent mine sewage again under the action of flocculation ions, so that the operation load of the purifying device is reduced, and the cost of adding a flocculating agent is saved; fourthly, the mine sewage treated by the purification device 5 enters the multi-media filter 7, and after multi-media filtration, activated carbon filtration and back flushing, the sewage which does not accord with the condition that the mine sewage flows out of the multi-media filter 7 is conveyed to the purification device 5 again for circular treatment; the mine water meeting the discharge standard is conveyed to a membrane bioreactor 8, namely an MBR reaction tank, the characteristic of organic combination of a membrane separation technology and a traditional wastewater treatment technology is utilized to deeply purify the relatively purified mine water, and the suspended substance and the turbidity of the mine water after ultrafiltration meet the recycling production standard; and fifthly, discharging the deeply purified mine water to a reuse water tank 9, conveying sodium hypochlorite to the reuse water tank 9 by a sodium hypochlorite generating device 10 in a fixed amount, performing high-efficiency and safe strong sterilization and disinfection, and returning the deeply purified terminal water to the underground production water supply system 11 through a pipeline.
The water treatment method comprises an automatic chemical feeding device and an automatic control system, the chemical feeding amount is adjusted according to the change of the water inflow, the chemical dosage is accurately controlled, the flocculation effect is exerted to the maximum extent, the situations that chemical dry powder is not accurately added due to manual feeding, the concentration of a chemical solution is too high, too low, the dry powder is easy to agglomerate and the like are easily caused, the mine water treatment cost is saved, the defects that a chemical solvent cannot be fully dissolved through long-time stirring, the effect is small, the effect is poor and the like are overcome, the primary purification quality of mine water is improved, the automatic control method has the characteristics of stable and reliable operation, the automation degree is greatly improved, and the labor intensity of.
According to the invention, in the primary purification process, mine water which does not meet the requirement of entering the subsequent treatment process is circulated and enters the primary purification link, so that the dosage of flocculating agents, coagulant aids and other medicaments is reduced, the subsequent mine water treatment effect is improved, the advanced treatment difficulty and the system pressure are relieved, and the advanced treatment is ensured to relieve the water quality to reach the standard.
Aiming at the characteristics of more mine water suspended matters, large difference of particle size distribution and the like, the mine water deep purification method fully utilizes the links of filtering systems such as multi-medium filtering, activated carbon filtering, back flushing and the like, performs ultrafiltration under the action of membrane bioreaction, and performs sterilization and disinfection by using a sodium hypochlorite solution, thereby ensuring that the mine water suspended matters, turbidity and the like after deep purification meet production indexes, and ensuring the safe use of the treated mine water.
The present invention is not described in detail, but is known to those skilled in the art. Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.

Claims (5)

1.一种矿井水深度净化处理回用于生产的装置，它包括地面贮水池（1）、高位初沉贮水调节池（2）、回用水池（9）和井下生产供水系统（11），其特征在于：所述地面贮水池（1）通过输水管（3）与高位初沉贮水调节池（2）连接，高位初沉贮水调节池（2）通过净化装置（5）用管道与多介质过滤器（7）连接，多介质过滤器（7）通过膜生物反应池（8）和回用水池（9）连接到井下生产供水系统（11），在输水管（3）上设有自动加药装置（4）。1. A device for deep purification treatment of mine water and reused for production, which comprises a ground water storage tank (1), a high-level primary sedimentation water storage adjustment tank (2), a reuse water tank (9) and an underground production water supply system (11) , which is characterized in that: the ground water storage tank (1) is connected to the high-level primary sedimentation water storage and regulation tank (2) through a water delivery pipe (3), and the high-level primary sedimentation water storage tank (2) passes through the purification device (5) with a pipeline It is connected with the multi-media filter (7), and the multi-media filter (7) is connected to the underground production water supply system (11) through the membrane biological reaction tank (8) and the recycling water tank (9). There is an automatic dosing device (4). 2.根据权利要求1所述的矿井水深度净化处理回用于生产的装置，其特征在于：所述装置还设有次氯酸钠发生装置（10），次氯酸钠发生装置（10）通过管道连接到回用水池（9）上。2. The device for deep purification treatment of mine water for reuse in production according to claim 1, characterized in that: the device is further provided with a sodium hypochlorite generating device (10), and the sodium hypochlorite generating device (10) is connected to the reused via a pipeline on the pool (9). 3.根据权利要求1所述的矿井水深度净化处理回用于生产的装置，其特征在于：所述净化装置（5）底部通过管道连接有污泥浓缩池（6），污泥浓缩池（6）通过管道与高位初沉贮水调节池（2）连接。3. The device for deep purification treatment of mine water and reused for production according to claim 1, characterized in that: the bottom of the purification device (5) is connected with a sludge concentration tank (6) through a pipeline, and the sludge concentration tank ( 6) Connect with the high-level primary sedimentation water storage adjustment tank (2) through the pipeline. 4.根据权利要求1所述的矿井水深度净化处理回用于生产的装置，其特征在于：所述多介质过滤器（7）的上部通过管道与净化装置（5）连接。4 . The device for deep purification and treatment of mine water for reuse in production according to claim 1 , wherein the upper part of the multi-media filter ( 7 ) is connected to the purification device ( 5 ) through a pipeline. 5 . 5.根据权利要求1-4任一项所述的矿井水深度净化处理回用于生产装置的处理方法，其特征在于：所述方法步骤为：一、井下矿井污水经泵从井下抽送提升至地面贮水池（1），调节进入后续深度净化处理系统的水量，矿井污水输送至高位初沉贮水调节池（2），污水经过截留作用后，去除以有机物为主的大尺寸的漂浮物和悬浮物，降低污水中的悬浮固体浓度，初步过滤的矿井水在高位初沉贮水调节池（2）利用其高位压差经管道溢流至管输水管（3）内，输水管（3）与聚合氯化铝（PAC）、聚丙烯酰胺干粉(PAM)的自动加药装置（4）连接，可根据进水流量的变化调节加药量，精确控制药剂添加量；二、初步过滤的矿井污水与高分子絮凝剂、助凝剂共同进入净化装置（5），即迷宫斜板净化处理系统，在絮凝剂压缩双电层、电性中和、卷带网捕以及吸附桥连等作用下，将COD颗粒物质沉淀，且在无机颗粒间形成较大絮体，增加巨大表面吸附作用，大幅度程度降低微生物及无机物的悬浮物浓度；三、经净化设备装置（5）处理后的污泥利用虹吸方式排泥管道排到污泥浓缩池（6）进行浓缩，清夜返回高位初沉贮水调节池（2），在絮凝电离子作用下再次与后续矿井污水混合，减少净化装置运行负荷，节省投加絮凝剂的成本；四、经净化装置（5）处理后的矿井污水进入多介质过滤器（7），在多介质过滤、活性炭过滤及反冲洗后，仍不符合流出多介质过滤器（7）的污水重新输送至净化设备（5）循环处理；已满足排出标准的矿井水输送至膜生物反应器（8），利用膜分离技术与传统废水处理技术有机结合的特点，对相对净化的矿井水进行深度净化，超滤后的矿井水悬浮物、浊度满足重回生产标准；五、深度净化后的矿井水排放至回用水池（9），由次氯酸钠发生装置（10）向回用水池（9）内定量输送次氯酸钠，进行高效、安全的強力灭菌、灭毒，深度净化后的终端水即可经管路重回井下生产供水系统（11）。5. The method for deep purification of mine water for reuse in a production device according to any one of claims 1-4, characterized in that: the method steps are: 1. The underground mine sewage is pumped and lifted from underground to The ground water storage tank (1) adjusts the amount of water entering the subsequent deep purification treatment system, and the mine sewage is transported to the high-level primary sedimentation water storage adjustment tank (2). Suspended solids, reduce the concentration of suspended solids in the sewage, and the initially filtered mine water in the high-level primary sedimentation storage adjustment tank (2) uses its high-level pressure difference to overflow into the pipeline water pipeline (3), and the water pipeline (3) It is connected with the automatic dosing device (4) of polyaluminum chloride (PAC) and polyacrylamide dry powder (PAM), and the dosing amount can be adjusted according to the change of the influent flow, and the amount of the drug added can be accurately controlled; 2. The mine for preliminary filtration The sewage, polymer flocculants and coagulants enter the purification device (5), namely the labyrinth inclined plate purification treatment system. , the COD particulate matter is precipitated, and larger flocs are formed between the inorganic particles, which increases the huge surface adsorption and greatly reduces the suspended solids concentration of microorganisms and inorganic substances; The sludge is discharged to the sludge concentration tank (6) by the siphon method for concentration, and returned to the high-level primary sedimentation water storage adjustment tank (2) in the clear night, and is mixed with the subsequent mine sewage again under the action of flocculation ions to reduce the operating load of the purification device. , save the cost of adding flocculant; 4. The mine sewage treated by the purification device (5) enters the multi-media filter (7), and after multi-media filtration, activated carbon filtration and backwashing, it still does not meet the outflow multi-media filtration. The sewage from the reactor (7) is re-transported to the purification equipment (5) for recycling treatment; the mine water that has met the discharge standard is transported to the membrane bioreactor (8). The purified mine water is deeply purified, and the suspended solids and turbidity of the ultra-filtered mine water meet the production standards. Sodium hypochlorite is quantitatively transported in the reuse tank (9) for efficient and safe strong sterilization and detoxification, and the deeply purified terminal water can be returned to the underground production water supply system (11) through the pipeline.
CN202011383876.0A 2020-12-01 2020-12-01 Device and method for deep purification treatment and reuse of mine water for production Pending CN112479502A (en)

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CN113233655A (en) * 2021-07-09 2021-08-10 山东格润内泽姆环保科技有限公司 High-turbidity coal mine underground mine water treatment system and method
CN119683712A (en) * 2024-12-30 2025-03-25 南方环境有限公司 A method and system for adding reagents to a sewage treatment station
CN119898901A (en) * 2025-04-01 2025-04-29 北京低碳清洁能源研究院 System and method for underground coordinated hardness removal of mine water

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CN110467288A (en) * 2019-08-27 2019-11-19 安徽环境科技集团股份有限公司 A kind for the treatment of process of Mine System
CN213803416U (en) * 2020-12-01 2021-07-27 贵州盘江精煤股份有限公司 Device for deep purification treatment and reuse in production of mine water

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CN202625977U (en) * 2012-04-11 2012-12-26 江苏韦帕环境工程有限公司 Purification and recycling device for mine and sewage
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CN113233655A (en) * 2021-07-09 2021-08-10 山东格润内泽姆环保科技有限公司 High-turbidity coal mine underground mine water treatment system and method
CN119683712A (en) * 2024-12-30 2025-03-25 南方环境有限公司 A method and system for adding reagents to a sewage treatment station
CN119898901A (en) * 2025-04-01 2025-04-29 北京低碳清洁能源研究院 System and method for underground coordinated hardness removal of mine water

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Application publication date: 20210312