CN210885639U - Device for removing iron and manganese in water - Google Patents
Device for removing iron and manganese in water Download PDFInfo
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- CN210885639U CN210885639U CN201921950142.9U CN201921950142U CN210885639U CN 210885639 U CN210885639 U CN 210885639U CN 201921950142 U CN201921950142 U CN 201921950142U CN 210885639 U CN210885639 U CN 210885639U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 156
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 70
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 34
- 239000011572 manganese Substances 0.000 title claims abstract description 30
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910052748 manganese Inorganic materials 0.000 title claims abstract description 29
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 118
- 230000003647 oxidation Effects 0.000 claims abstract description 80
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 80
- 238000001914 filtration Methods 0.000 claims abstract description 24
- 238000005273 aeration Methods 0.000 claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 229910000616 Ferromanganese Inorganic materials 0.000 claims description 21
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical compound [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 claims description 21
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 15
- 239000001301 oxygen Substances 0.000 claims description 15
- 229910052760 oxygen Inorganic materials 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 9
- 238000012856 packing Methods 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 7
- 239000002244 precipitate Substances 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims 1
- 239000013049 sediment Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 239000008394 flocculating agent Substances 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- QJZYHAIUNVAGQP-UHFFFAOYSA-N 3-nitrobicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid Chemical compound C1C2C=CC1C(C(=O)O)C2(C(O)=O)[N+]([O-])=O QJZYHAIUNVAGQP-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- 229920000388 Polyphosphate Polymers 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003651 drinking water Substances 0.000 description 2
- 235000020188 drinking water Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003673 groundwater Substances 0.000 description 2
- 239000004021 humic acid Substances 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 229920002401 polyacrylamide Polymers 0.000 description 2
- 239000001205 polyphosphate Substances 0.000 description 2
- 235000011176 polyphosphates Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- 241000295146 Gallionellaceae Species 0.000 description 1
- 206010033799 Paralysis Diseases 0.000 description 1
- 229940072056 alginate Drugs 0.000 description 1
- 235000010443 alginic acid Nutrition 0.000 description 1
- 229920000615 alginic acid Polymers 0.000 description 1
- 231100000739 chronic poisoning Toxicity 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000035622 drinking Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 229910000015 iron(II) carbonate Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Inorganic materials O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 1
- 229910001437 manganese ion Inorganic materials 0.000 description 1
- BZDIAFGKSAYYFC-UHFFFAOYSA-N manganese;hydrate Chemical compound O.[Mn] BZDIAFGKSAYYFC-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000008897 memory decline Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
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- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
The utility model discloses a device of indisputable manganese in dewatering, including ozone contact tank and the filtering pond of connecting each other, ozone contact tank configuration is to utilizing the indisputable manganese of ozone oxidation aquatic and generates the sediment, the filtering pond configuration is to filtering produced sediment. Wherein the ozone contact tank comprises: a water inlet pipe through which raw water enters the ozone contact tank from above; a pre-oxidation zone arranged at the upper part of the ozone contact tank and configured to perform primary oxidation on the raw water by using the residual ozone; the ozone aeration device is arranged at the bottom of the contact oxidation zone, so that the generated ozone moves from bottom to top and is in contact reaction with water; and a water outlet pipe communicated with the contact oxidation zone at the downstream of the contact oxidation zone and configured to be communicated with the filter tank so that water from the ozone contact tank flows into the filter tank. The device has simple structure and higher removal rate for various types of iron and manganese which exceed the standard in water.
Description
Technical Field
The utility model relates to a water treatment technical field specifically, relates to a device of ferro-manganese in the dewatering, especially, relates to the device of ferro-manganese in removing the groundwater.
Background
At present, most of rural areas and partial small town areas in China adopt underground water as a drinking water source, but due to hydrogeology, the content of iron and manganese in the underground water is always overproof, and long-term drinking of water with the overproof iron content can cause chronic poisoning of human bodies and even diseases such as paralysis, memory decline and the like. In addition, groundwater with excessive levels of iron and manganese can cause brown rust on various household appliances in use, and iron deposited on the inner wall of the pipe can cause growth of iron bacteria, resulting in "red water" from the faucet. In health Standard for Drinking Water (GB5749) in China: iron is less than 0.3mg/L, manganese is less than 0.1mg/L, and when the iron and manganese in the raw water exceed the above standard, the raw water should be treated.
The existing underground water iron removal technology mostly adopts an aeration-precipitation-filtration method to remove overproof iron in underground water. The first step of iron removal is based on the oxidation of ferrous iron by oxygen in the air, and aeration can be carried out at atmospheric pressure or at the pressure of the water inlet pipe. The precipitate produced by the reaction is mainly flocculent hydroxide Fe (OH)3(ii) a Depending on the actual conditions, different proportions of hydrous iron oxide nFe may be formed2O3·nH2O, sometimes forming FeCO3(when the alkalinity in water is high), etc.
The existing underground water manganese removal technology mostly adopts an aeration-filtration method to remove over-standard manganese in underground water. Mn at Normal pH2+Is oxidized into MnO by oxygen2The reaction of (a) is very slow and the contact time required for oxidation is not easy to apply industrially.
The existing devices for removing iron and manganese in water are all combined in one unit by an aeration oxidation device and a filtering device, and the aeration only adopts air aeration to oxidize iron and manganese ions in raw water to form Fe (OH)3、MnO2Precipitating, and filtering with a filterAnd (5) filtering and removing.
Although a certain amount of ferro-manganese in water can be removed by such a device, there are disadvantages as follows: (1) the aeration oxidation device and the filtering device are combined in the same unit, so that the aeration time is short, and the aeration oxidation is not thorough; (2) the capacity of oxidizing ferromanganese in water by using oxygen in air is limited, and ferromanganese existing in a complex form in underground water is difficult to remove; (3) the device is overall complex, has high requirements on automatic control and has high running cost.
SUMMERY OF THE UTILITY MODEL
To above problem, according to the utility model discloses, a remove device of aquatic ferro-manganese is proposed, including ozone contact tank and the filtering pond of connecting each other, ozone contact tank configuration is for utilizing ozone to come the ferro-manganese and generate the sediment in the oxidation aquatic, the filtering pond configuration is for filtering the sediment that generates, wherein, ozone contact tank includes: a water inlet pipe through which raw water enters the ozone contact tank from above; a pre-oxidation zone arranged at the upper part of the ozone contact tank and configured to perform primary oxidation on the raw water by using the residual ozone; the ozone aeration device is arranged at the bottom of the contact oxidation zone, so that the generated ozone moves from bottom to top and is in contact reaction with water; and a water outlet pipe communicated with the contact oxidation zone at the downstream of the contact oxidation zone and configured to be communicated with the filter tank so that water from the ozone contact tank flows into the filter tank.
According to the utility model discloses a remove device of aquatic ferro-manganese has following advantage: the ozone with stronger oxidizing property than oxygen is used for oxidation, so that the oxidation efficiency of iron and manganese is higher, the iron and manganese in a complex form can be oxidized more thoroughly, and the influence of substances with inhibiting effect on the oxidation of the iron and manganese, such as humic acid, silicate, phosphate, polyphosphate and the like in underground water, can be overcome; the iron and manganese removing device is divided into two separated units of an ozone contact tank and a filter tank, so that the ozone aeration oxidation process and the filtering process are not interfered with each other, the ozone aeration oxidation process is more sufficient, the filter tank is independently precipitated, the influence of external conditions is not easily caused, and the filtering effect is better; the equipment is simple and the operation is convenient; the generated ozone moves from bottom to top and is in contact oxidation with water in the contact oxidation zone, and the residual ozone is in primary oxidation on the raw water in the pre-oxidation zone, so that the ozone utilization efficiency is higher and the oxidation is more complete; after the ozone contacts the pool, the residual ozone in the water can be degraded into oxygen, the oxygen concentration in the water is maintained, the iron and manganese in the water can be continuously oxidized, and the oxidation effect is further ensured.
The device for removing iron and manganese in water according to the utility model can have one or more of the following characteristics.
According to one embodiment, a flocculant adding device is arranged on the water outlet pipeline and is configured to add a flocculant to water flowing through. And a flocculating agent is added before water enters the filter tank, so that the subsequent filtering effect is enhanced.
According to one embodiment, the filter is a gravity-filtration filter, a pressure filter or a closed submerged filter. The ozone contact tank can be matched with different types of filter tanks for use so as to be suitable for different environments and requirements.
According to one embodiment, the ozone contact tank is provided with an ozone destructor configured to destroy residual ozone to oxygen at the top. The ozone destructor can destroy the unused ozone into oxygen, and does not produce environmental pollution.
According to one embodiment, the water inlet pipe is connected to a plurality of spray headers, and raw water is uniformly distributed through the spray headers and is sprayed into the ozone contact tank. The spray header can realize uniform water distribution, and can spray raw water in a small droplet form, so that the contact area of the raw water and ozone is increased.
According to one embodiment, the pre-oxidation zone is provided with a water dropping device formed in multiple stages so that water drops step by step, thereby extending the path traveled by the water and increasing the area and time of contact between ozone and water.
According to one embodiment, the water dropping device comprises a plurality of stages of water dropping nets transversely crossing the tank body of the ozone contact tank and spaced apart from each other, the water dropping nets comprising plate bodies and a plurality of holes penetrating the plate bodies, water dropping through the holes of the previous stage of water dropping net to the next stage of water dropping net. The water drop net is simple in structure and convenient to manufacture, and the contact area and time of ozone and water can be effectively increased through the multi-stage water drop net.
According to one embodiment, the water dropping device comprises one or more sloping plates with a plurality of steps, so that water drops step by step along the steps. When the swash plate is a plurality of, the bottom of last swash plate is close to the top of next swash plate, and the incline direction is opposite for the water broken line formula falls, not only can effectively increase the area and the time of ozone and water contact, can also save space.
According to one embodiment, the contact oxidation zone comprises a contact bed comprising a perforated base plate and packing disposed on the base plate, the water being contact reacted with ozone during passage through the packing of the contact bed. Due to the existence of the filler, the gas-water contact area is increased, and the contact oxidation process is facilitated.
According to one embodiment, the contact oxidation zone comprises baffles arranged parallel and offset to each other, so that the water contacts and reacts with the ozone while traveling in a zigzag pattern. The baffle plate prolongs the water traveling path, and increases the gas-water contact area and time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly described below. The drawings are intended to depict only some embodiments of the invention, and not all embodiments of the invention are limited thereto.
Fig. 1 is a schematic structural view of an apparatus for removing ferromanganese in water according to a first embodiment.
Fig. 2 is a schematic view of a drop net of the apparatus for removing ferro-manganese in water according to the first embodiment.
Fig. 3 is a schematic structural diagram of an apparatus for removing ferromanganese in water according to a second embodiment.
Fig. 4 is a schematic structural diagram of an apparatus for removing ferromanganese in water according to a third embodiment.
FIG. 5 is a schematic view of a pressure type filter.
FIG. 6 is a schematic view of a closed submerged filter.
Detailed Description
In order to make the technical solution of the present invention, its purpose, technical solution and advantages become clearer, the drawings of the embodiments of the present invention will be combined hereinafter, and the technical solution of the embodiments of the present invention will be clearly and completely described. Like reference symbols in the various drawings indicate like elements. It should be noted that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
The present invention is described in detail below by way of describing example embodiments.
As shown in figures 1, 3 and 4, the utility model aims to provide a device 1 for removing iron and manganese in water, which has simple structure, simple operation, no need of precipitation and higher removal rate for iron and manganese in various forms exceeding the standards in underground water. The apparatus 1 comprises an ozone contact tank 100 and a filter tank 200 connected to each other. The ozone contact tank 100 is configured to oxidize iron and manganese in water using ozone and generate precipitates, and the filter tank 200 is configured to filter the generated precipitates. Wherein the ozone contact tank 100 includes: a water inlet pipe through which raw water enters the ozone contact tank 100 from above; a pre-oxidation zone 110 disposed at an upper portion of the ozone contact tank 100 and configured to primarily oxidize the raw water using the remaining ozone; a contact oxidation zone 120 arranged at the lower part of the ozone contact tank 100, wherein the bottom of the contact oxidation zone 120 is provided with an ozone aeration device 113, so that the generated ozone moves from bottom to top and is in contact reaction with water; and an outlet conduit in communication with the contact oxidation zone 120 downstream of the contact oxidation zone 120, configured to communicate with the filter 200, such that water from the ozone contact tank 100 flows into the filter 200.
According to the utility model discloses a remove device 1 of aquatic ferro-manganese can have following advantage: the ozone with stronger oxidizing property than oxygen is used for oxidation, so that the oxidation efficiency of iron and manganese is higher, the iron and manganese in a complex form can be oxidized more thoroughly, and the influence of substances with inhibiting effect on the oxidation of the iron and manganese, such as humic acid, silicate, phosphate, polyphosphate and the like in underground water, can be overcome; the iron and manganese removing device is divided into two separated units of the ozone contact tank 100 and the filter tank 200, so that the ozone aeration oxidation process and the filtering process are not interfered with each other, the ozone aeration oxidation process is more sufficient, the filter tank 200 is independently precipitated, the influence of external conditions is not easy, and the filtering effect is better; the equipment is simple and the operation is convenient; the generated ozone moves from bottom to top and is in contact oxidation with water in the contact oxidation zone 120, and the residual ozone is in primary oxidation on the raw water in the pre-oxidation zone 110, so that the ozone utilization efficiency is higher and the oxidation is more complete; after the ozone contacts the tank 100, the ozone in the residual water is degraded into oxygen, so that the oxygen concentration in the water is maintained, and the iron and manganese in the water can be continuously oxidized.
Optionally, a flocculant adding device 130 is disposed on the water outlet pipeline and configured to add a flocculant to the flowing water. The flocculating agent can be a common flocculating agent for increasing the floc quality, such as alginate, Polyacrylamide (PAM), polyaluminium chloride (PAC) and the like, and the subsequent filtering effect is enhanced.
Alternatively, the filter 200 is a gravity filtration (as shown in fig. 1, 3, and 4), a pressure type filter (as shown in fig. 5), or a closed submerged type filter (as shown in fig. 6). The ozone contact tank 100 can be used with different types of filter tanks 200 to suit different environments and requirements.
Optionally, the top of the ozone contact tank 100 is provided with an ozone destructor 101 configured to destroy residual ozone to oxygen. The ozone destructor 101 can destroy the unused ozone into oxygen, and does not cause environmental pollution.
The structure of the apparatus 1 for removing ferromanganese in water according to the present invention will be described in detail by the first to third embodiments.
< first embodiment >
Referring to fig. 1, fig. 1 is a schematic structural view of an apparatus 1 for removing iron and manganese in water according to a first embodiment. The apparatus 1 for removing iron and manganese in water according to the first embodiment includes an ozone contact tank 100 and a filter tank 200. The filter 200 is disposed downstream of the ozone contact tank 100. The ozone destructor 101 is disposed on the top of the ozone contact tank 100 and is used for destroying residual ozone into oxygen to prevent environmental pollution. The ozone contact tank 100 is divided into an upper part and a lower part, wherein the upper part is a pre-oxidation area 110, and the lower part is a contact oxidation area 120. The upper portion of the pre-oxidation zone 110 is provided with a shower head 102 that allows water to be sprayed out in the form of small droplets. The pre-oxidation zone 110 is further provided with a water dropping device, in this embodiment, the water dropping device is in the form of a multi-stage water dropping net 103, as shown in fig. 2, the water dropping net 103 comprises a plate body and a plurality of holes penetrating through the plate body, for example, the water dropping net 103 may be a plate made of PVC or other ozone corrosion resistant materials with irregular round holes distributed on the surface, the multi-stage water dropping net 103 transversely spans the tank body of the ozone contact tank 100 and is spaced from each other, and the holes of the multi-stage water dropping net 103 are preferably not aligned to prolong the flow path of water. Contact oxidation zone 120 can be provided with a contact bed 111, contact bed 111 comprising a perforated base plate and packing material disposed on the base plate, which packing material can be ceramic or other ozone corrosion resistant packing material. The ozone aeration device 113 is arranged at the bottom of the contact oxidation area 120, ozone prepared by air is released into the ozone contact tank 100 through the ozone aeration device 113 and moves from bottom to top, firstly the ozone is in contact reaction with water in the contact oxidation area 120, the residual ozone is in primary oxidation of raw water in the pre-oxidation area, and finally the residual ozone is destroyed by the ozone destructor 101. The bottom of one side of the contact oxidation zone 120 is provided with a water outlet pipeline, the water outlet pipeline is connected with the filter 200, the water treated by the ozone contact tank 100 flows into the filter 200 through the water outlet pipeline, and the water outlet pipeline can be provided with a flocculating agent adding device 130 to add flocculating agent into the water. The filter chamber 200 according to the present embodiment is a filter chamber using gravity filtration, and therefore the filter chamber 200 is disposed substantially below the water level of the outlet pipe.
The raw water is conveyed to a water inlet pipeline at the upper part of the ozone contact tank 100 by a water pump, is uniformly distributed by a spray header 102, is sprayed in a small droplet form, passes through a multi-stage water dropping net 103, falls from top to bottom through a pre-oxidation zone 110 and enters a contact oxidation zone 120. In the falling process, the raw water is primarily oxidized by using the residual ozone passing through the contact oxidation area 120, and the multistage water falling net 103 can increase the contact area and time of gas and water and enhance the aeration oxidation effect. After entering the contact oxidation area 120, the water passing through the pre-oxidation area 110 passes through the contact bed 111 from top to bottom, so that the gas-water contact area is increased, and the oxidation effect is enhanced. The water fully oxidized by the ozone flows out through the water outlet pipeline, and flows to the filter 200 for filtration after being added with the flocculant by the flocculant adding device 130.
< second embodiment >
Referring to fig. 3, fig. 3 is a schematic structural view of the apparatus 1 for removing ferromanganese in water according to the second embodiment. The second embodiment is similar to the first embodiment, and mainly differs therefrom in that the drop arrangement according to the second embodiment is not a multistage drop net 103, but a sloping plate 104 having a plurality of steps. The number of swash plates 104 may be one or more, and in the embodiment shown in fig. 3, the number of swash plates 104 is 2. The sloping plate 104 may be made of a material resistant to ozone corrosion. When the swash plate 104 is plural, the bottom of the previous swash plate 104 is adjacent to the top of the next swash plate 104, and the inclination directions are opposite, so that the water falls off in a broken line. As shown in fig. 3, the lower end of the upper swash plate 104 is adjacent to the upper end of the lower swash plate 104, and water drops stepwise along the upper swash plate 104, then drops from the lower end of the upper swash plate 104 to the upper end of the lower swash plate 104, and drops stepwise along the lower swash plate 104. Therefore, the contact area and time of ozone and water can be effectively increased, and the space can be saved.
< third embodiment >
Referring to fig. 4, fig. 4 is a schematic structural view of an apparatus 1 for removing ferromanganese in water according to a third embodiment. The third embodiment is similar to the second embodiment, and differs from the second embodiment mainly in that the contact oxidation zone 120 according to the third embodiment is not provided with the contact bed 111, but with baffles 112 which are parallel to and staggered from each other, so that water is contact-reacted with ozone while traveling in a zigzag. The provision of baffles 112 extends the water travel path, increasing the gas-water contact area and time. The baffle 112 material may be ceramic or other ozone resistant material. Optionally, as shown in fig. 4, a water-stop baffle is disposed at the bottom of the contact oxidation zone 120 and downstream of the plurality of baffles 112, and an overflow weir is disposed downstream of the water-stop baffle and connected to the filter 200 through an outlet conduit, so that the water fully oxidized by ozone flows out through the water-stop baffle from bottom to top via the overflow weir, and the effluent enters the outlet conduit and flows into the filter 200. Optionally, a gas channel 105 is disposed above the contact oxidation zone 120 for passing the residual ozone into the upper pre-oxidation zone 110 to fully utilize the residual ozone.
It is understood that the ozone contact tank 100 of the apparatus 1 for removing iron and manganese in water according to an embodiment of the present invention may include a multi-stage drop net 103 disposed in the pre-oxidation zone 110 and a plurality of baffles 112 disposed in the contact oxidation zone 120. This embodiment is not shown in the figures.
The exemplary embodiment of the device 1 for removing iron and manganese in water according to the present invention has been described in detail with reference to the preferred embodiments, however, it will be understood by those skilled in the art that various modifications and changes can be made to the above specific embodiments without departing from the concept of the present invention, and various combinations of the various technical features and structures of the present invention can be implemented without departing from the scope of the present invention.
List of reference numerals
Device for removing iron and manganese in water
100 ozone contact pool
110 pre-oxidation zone
120 contact oxidation zone
101 ozone destructor
102 shower head
103 drop net
104 inclined plate
105 gas channel
111 contact bed
112 baffle plate
113 ozone aeration device
130 flocculating agent feeding device
200 filter
Claims (10)
1. An apparatus for removing ferromanganese in water, comprising an ozone contact tank and a filter tank connected to each other, the ozone contact tank being configured to oxidize ferromanganese in water with ozone and generate precipitates, the filter tank being configured to filter the generated precipitates,
wherein the ozone contact tank comprises:
a water inlet pipe through which raw water enters the ozone contact tank from above;
a pre-oxidation zone arranged at the upper part of the ozone contact tank and configured to perform primary oxidation on the raw water by using the residual ozone;
the ozone aeration device is arranged at the bottom of the contact oxidation zone, so that the generated ozone moves from bottom to top and is in contact reaction with water; and
an outlet conduit in communication with the contact oxidation zone downstream of the contact oxidation zone and configured to communicate with the filtration chamber such that water from the ozone contact chamber flows into the filtration chamber.
2. The device for removing iron and manganese in water according to claim 1, wherein a flocculant adding device is arranged on the water outlet pipeline and configured to add a flocculant to water flowing through.
3. The apparatus of claim 1, wherein the filter is a gravity filter, a pressure filter or a closed submerged filter.
4. The apparatus of claim 1, wherein the ozone contact tank is provided with an ozone destructor at the top thereof configured to destroy residual ozone to oxygen.
5. The device for removing ferro-manganese in water according to any one of claims 1 to 4, characterized in that the water inlet pipeline is connected to a plurality of spray headers, raw water is uniformly distributed through the spray headers and is sprayed into the ozone contact tank.
6. The ferro-manganese water removal device in accordance with claim 5, wherein said pre-oxidation zone is provided with water dropping devices formed in multiple stages so that water drops step by step, thereby prolonging the path of water travel.
7. An apparatus as claimed in claim 6, wherein the drop arrangement comprises a plurality of stages of drop nets transversely spanning the body of the ozone contact tank and spaced apart from each other, the drop nets comprising plate bodies and a plurality of holes penetrating the plate bodies, water dropping through the holes of a previous stage of drop net to a next stage of drop net.
8. The device for removing ferro-manganese in water according to claim 6, wherein the water dropping device comprises one or more sloping plates with a plurality of steps, so that the water drops down along the steps in a stepwise manner.
9. The apparatus of claim 6 wherein the contact oxidation zone comprises a contact bed comprising a perforated base plate and packing material disposed on the base plate, the water being contact reacted with ozone during passage through the packing material of the contact bed.
10. The apparatus of claim 6, wherein the contact oxidation zone comprises baffles parallel to and offset from each other, so that the water contacts and reacts with ozone while bending.
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| CN201921950142.9U CN210885639U (en) | 2019-11-13 | 2019-11-13 | Device for removing iron and manganese in water |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113429010A (en) * | 2021-05-28 | 2021-09-24 | 郑州大学综合设计研究院有限公司 | Ozone and active carbon advanced treatment waste water's device in coordination |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113429010A (en) * | 2021-05-28 | 2021-09-24 | 郑州大学综合设计研究院有限公司 | Ozone and active carbon advanced treatment waste water's device in coordination |
| CN113429010B (en) * | 2021-05-28 | 2023-08-22 | 郑州大学综合设计研究院有限公司 | Device and method for advanced wastewater treatment by cooperation of ozone and activated carbon |
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Address after: 3101, 27th Floor, Building 1, Yard 38, East 3rd Ring North Road, Chaoyang District, Beijing, 100026 Patentee after: Suez Environmental Technology (Beijing) Co.,Ltd. Address before: 100026 31 / F, Taikang financial building, building 1, courtyard 38, East Third Ring Road North, Chaoyang District, Beijing Patentee before: Suez Water Treatment Co,.Ltd. |