CN210945112U - Leachate treatment system and pretreatment device for reducing inflow suspended matters and sulfides - Google Patents
Leachate treatment system and pretreatment device for reducing inflow suspended matters and sulfides Download PDFInfo
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- CN210945112U CN210945112U CN201921425919.XU CN201921425919U CN210945112U CN 210945112 U CN210945112 U CN 210945112U CN 201921425919 U CN201921425919 U CN 201921425919U CN 210945112 U CN210945112 U CN 210945112U
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Abstract
The utility model relates to a reduce preprocessing device of intake suspended solid and sulphide, including the box, separate in the box and be formed with coagulation chamber, air supporting chamber and the drip chamber that communicates in proper order, be equipped with the unit of intaking on the coagulation chamber, the drip chamber disposes out the water unit, and air supporting chamber top is equipped with scrapes the sediment ware, and air supporting chamber bottom is equipped with air supporting releaser and aerator. Still relate to a filtration liquid processing system, include above-mentioned preprocessing device. By arranging the aerator in the air flotation chamber, the soluble hydrogen sulfide in the water body can be converted into elemental sulfur, so that the sulfide can be conveniently removed, and the phenomenon that the sulfide generates elemental sulfur to pollute the online monitoring equipment in the subsequent treatment process is avoided. Through the combined action of the coagulation chamber, the air flotation chamber and the sedimentation chamber, the concentration of impurities such as suspended matters in inlet water can be effectively reduced, and when the percolate is treated, the percolate entering a subsequent membrane system is in an aerobic state, so that the phenomena of frequent backwashing of the subsequent membrane system, frequent replacement of filter elements of the filter and the like are avoided, and the daily treatment capacity can be increased.
Description
Technical Field
The utility model belongs to the technical field of the environmental protection, concretely relates to reduce preprocessing device of intaking suspended solid and sulphide and filtration liquid processing system including this preprocessing device.
Background
The two-stage disc tube type reverse osmosis (DTRO) emergency treatment integrated device is mainly used for treating stock landfill leachate, has the advantages of short supply period, short debugging period, short water outlet time, stable and standard outlet water quality and the like, and is widely applied to the aspects of landfill leachate treatment and the like nationwide.
The following problems are easy to occur in the application process:
(1) various biochemical indexes of the produced water of the system can reach the standard, but the effluent water contains sulfur simple substances which pollute the online monitoring equipment, so that the online monitoring shows that the effluent water does not reach the standard.
(2) The DTRO device is intake for the filtration liquid stoste, and the stoste is the sewage that the garbage fermentation generated, and suspended solid SS concentration is high simultaneously, and the raw water is in the anaerobic state in addition, and the suspended solid SS in the stoste forms into a colloidal state under the anaerobic condition, is difficult for through filtering, adds the medicine and thoughtlessly gets rid of, leads to advancing behind the DTRO device sand and consider a jar backwash frequent, and the core type filter core is changed frequently, has shortened the time of intaking, the daily treatment capacity significantly reduced.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a reduce the preprocessing device of intaking suspended solid and sulphide and reach the filtration liquid processing system including this preprocessing device, can solve prior art's partial defect at least.
The embodiment of the utility model provides a reduce preprocessing device of intake suspended solid and sulphide, the power distribution box comprises a box body, separate in the box and be formed with coagulation chamber, air supporting chamber and the drip chamber that communicates in proper order, be equipped with the unit of intaking on the coagulation chamber, the drip chamber disposes out the water unit, air supporting chamber top is equipped with scrapes the sediment ware, air supporting chamber bottom is equipped with air supporting releaser and aerator.
In one embodiment, a mud bucket is arranged at the bottom of the air flotation chamber, a mud discharge port is arranged on the mud bucket, and the air flotation releaser and the aerator are both positioned above the mud bucket.
As one example, the settling chamber is an inclined plate settling chamber.
In one embodiment, the coagulation chamber is partitioned to form a first coagulation area and a second coagulation area which are communicated with each other, the water inlet unit is arranged on the first coagulation area, the second coagulation area is communicated with the air flotation chamber, the first coagulation area is provided with a first medicine adding mechanism, and the second coagulation area is provided with a second medicine adding mechanism.
As one example, the first dosing mechanism includes a first pharmaceutical tank for dispensing a PAC and a first dosing pump in communication with the first pharmaceutical tank and the first coagulation zone, respectively.
As an embodiment, the second dosing mechanism includes a second pharmaceutical tank for dispensing PAM and a second dosing pump respectively communicating with the second pharmaceutical tank and the second coagulation zone.
As an embodiment, a stirrer is arranged in each of the first coagulation zone and the second coagulation zone.
The embodiment of the utility model provides a still relate to a filtration liquid processing system, including preliminary treatment mechanism and main processing mechanism, preliminary treatment mechanism includes as above the reduction pretreatment unit of intaking suspended solid and sulphide.
The embodiment of the utility model provides a following beneficial effect has at least:
the utility model discloses a set up the aerator in the air supporting room, can make in the water dissolubility hydrogen sulfide turn into sulfur simple substance through the aeration, the getting rid of the sulphide of being convenient for, the sulphide generates sulfur simple substance and pollutes on-line monitoring equipment etc. in avoiding the follow-up processing flow, guarantees the normal operating and improve equipment's of filtration liquid processing system etc. life. Through the comprehensive action of the coagulation chamber, the air flotation chamber and the sedimentation chamber, the concentration of impurities such as suspended matters in inlet water can be effectively reduced, and when the percolate is treated, the percolate entering a subsequent membrane system is in an aerobic state, so that the phenomena of frequent backwashing of the subsequent membrane system, frequent replacement of a filter element and the like are avoided, and the daily treatment capacity can be remarkably increased. The pretreatment device is integrated equipment, has a simple structure, small occupied area, easy operation and low operation energy consumption, and has good popularization value.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a pretreatment device provided in an embodiment of the present invention;
fig. 2 is a top view of a pretreatment device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are described below clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example one
As shown in fig. 1 and 2, the embodiment of the utility model provides a reduce preprocessing device of intake suspended solid and sulphide, the power distribution box comprises a box body, separate in the box and be formed with coagulating chamber 100, air supporting chamber 200 and the drip chamber 300 that communicate in proper order, be equipped with into water unit 500 on coagulating chamber 100, drip chamber 300 disposes out water unit 400, air supporting chamber 200 top is equipped with scrapes sediment ware 203, air supporting chamber 200 bottom is equipped with air supporting releaser 201 and aerator 202.
The tank is one of the container types of the pretreatment apparatus, and obviously, a tank body, and the like are also applicable to the present embodiment.
The chamber areas in the box body are formed by separating partition plates, and the partition plates are generally made of the same material as the box body.
The coagulation chamber 100 is used for promoting the coagulation by the water entering the apparatus, and more preferably, the coagulation is performed by adding chemicals, that is, the coagulation chamber 100 is provided with a chemical adding mechanism. The pretreatment device provided by the embodiment is preferably used for treating landfill leachate, and preferably, PAM (polystyramide) and PAC (polyaluminium chloride) are added to the leachate in the coagulation chamber 100, so that coagulation effect on impurities such as suspended matters in the leachate is better. Preferably, PAM and PAC are added in a partition mode, the coagulation effect is better, and specifically:
as shown in fig. 2, the coagulation chamber 100 is partitioned to form a first coagulation area 101 and a second coagulation area 102 which are communicated with each other, the water inlet unit 500 is disposed on the first coagulation area 101, the second coagulation area 102 is communicated with the air flotation chamber 200, the first coagulation area 101 is configured with a first medicine adding mechanism, and the second coagulation area 102 is configured with a second medicine adding mechanism. Preferably, PAC is added first and then PAM is added, that is, the first dosing mechanism includes a first pharmaceutical tank for preparing PAC and a first dosing pump respectively communicated with the first pharmaceutical tank and the first coagulation zone 101; the second medicine adding mechanism comprises a second medicine preparing box for preparing PAM and a second medicine adding pump respectively communicated with the second medicine preparing box and the second coagulation area 102.
Further preferably, the first coagulation zone 101 and the second coagulation zone 102 are both provided with a stirrer 103, which can improve the mixing effect of the medicament and the water body, thereby ensuring the coagulation effect.
In one embodiment, the prepared PAC concentration is about 10%, and the prepared PAM concentration is within a range of 1-3 per mill. The reaction time of the two coagulation areas is respectively 6min, and the required coagulation reaction effect can be obtained.
The air flotation chamber 200 has air flotation and aeration functions, and preferably, an air flotation releaser 201 and an aerator 202 run intermittently; the main purpose of the air flotation is to enable the micelle and floc generated after coagulation to float on the liquid surface, so that the scum scraper 203 can scrape off the micelle and the floc, and the purpose of removing suspended matters in the inlet water is achieved; the aeration aims at converting the dissolved hydrogen sulfide in water into elemental sulfur so as to achieve the aim of removing the sulfide in the water.
In the air flotation chamber 200, the air flotation releaser 201 can be arranged on one side of the air flotation chamber 200 close to the coagulation chamber 100, so that the micelles, flocs and the like in the water body can be prompted to float upwards at the first time, and the residue scraper 203 is arranged on the rear side of the air flotation releaser 201 along the water flow direction. The aerator 202 may be an aeration pipe, and the aeration range of the aeration pipe may cover the entire cross section of the air bearing chamber 200. In the intermittent operation process of the air flotation releaser 201 and the aerator 202, the slag scraper 203 can continuously operate at the aeration stage of the aerator 202, so that the impurity removal effect is ensured.
Conventionally, the air-float releaser 201 is used for releasing the air-water mixture, and is correspondingly configured with an air-dissolving device (not shown, not labeled), and the air-float releaser 201, the aerator 202 and the slag scraper 203 are all conventional devices, and are commercially available, and the specific structure thereof is not described herein.
Further preferably, as shown in fig. 1, a hopper 204 is disposed at the bottom of the air flotation chamber 200, a sludge discharge port is disposed on the hopper 204, and the air flotation releaser 201 and the aerator 202 are both disposed above the hopper 204. The elemental sulfur generated by aeration sinks together with the sludge in the air flotation chamber 200 into the hopper 204 and is discharged through the hopper 204.
The settling chamber 300 can further remove sludge and suspended matters in the water body; further preferably, the settling chamber 300 is an inclined plate settling chamber 300, that is, an inclined plate 301 is arranged in the settling chamber 300, so that the effect and efficiency of settling the sludge and suspended matters can be improved.
The outlet unit 400 may be an outlet chamber 400 disposed at an outlet side of the settling chamber 300, and an outlet pipe is disposed on the outlet chamber 400. Wherein the supernatant of the effluent from the settling chamber 300 preferably flows automatically into the effluent chamber 400; in addition, the coagulation chamber 100 and the air flotation chamber 200 and the sedimentation chamber 300 are preferably realized through self-flowing of water, so that the running energy consumption of the device can be saved.
The pretreatment device that this embodiment provided through set up aerator 202 in air supporting chamber 200, can make in the water solubility hydrogen sulfide turn into elementary sulfur through the aeration, is convenient for getting rid of sulphide, avoids sulphide to generate elementary sulfur and pollutes on-line monitoring equipment etc. in the follow-up processing flow, guarantees the normal operating of filtration liquid processing system etc. and improve equipment's life. Through the combined action of the coagulation chamber 100, the air flotation chamber 200 and the sedimentation chamber 300, the concentration of impurities such as suspended matters in inlet water can be effectively reduced, and when the percolate is treated, the percolate entering a subsequent membrane system can be in an aerobic state, so that the phenomena of frequent backwashing of the subsequent membrane system, frequent replacement of filter elements of the filter and the like are avoided, and the daily treatment capacity can be increased. The pretreatment device is integrated equipment, has a simple structure, small occupied area, easy operation and low operation energy consumption, and has good popularization value.
Example two
The embodiment of the utility model provides a leachate treatment system, including preliminary treatment mechanism and main processing mechanism, preliminary treatment mechanism includes the reduction of the first provided of above-mentioned embodiment pretreatment device of intaking suspended solid and sulphide, and this pretreatment device's concrete structure here is not repeated, easily understands ground, this pretreatment device's water outlet unit 400 and the water inlet intercommunication of above-mentioned main processing mechanism.
Further, the pretreatment mechanism further comprises an adjusting tank, the adjusting tank is communicated with the water inlet unit 500 on the coagulation chamber 100, and the leachate is adjusted by the adjusting tank, so that the subsequent pretreatment effect can be improved.
The existing landfill leachate treatment equipment/process is applicable to the present embodiment, and in one embodiment, the host processing mechanism includes a two-stage disc-tube type reverse osmosis (DTRO) emergency treatment integrated device, which is conventional in the art, and the specific structure of the two-stage disc-tube type reverse osmosis (DTRO) emergency treatment integrated device is not described herein.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a reduce preprocessing device of into water suspended solid and sulphide which characterized in that: the water treatment tank comprises a tank body, the box body is internally provided with a coagulation chamber, an air flotation chamber and a precipitation chamber which are sequentially communicated in a separating mode, the coagulation chamber is provided with a water inlet unit, the precipitation chamber is provided with a water outlet unit, the top of the air flotation chamber is provided with a slag scraper, and the bottom of the air flotation chamber is provided with an air flotation releaser and an aerator.
2. A pretreatment device for reducing suspended solids and sulfides in feed water according to claim 1, wherein: the bottom of the air flotation chamber is provided with a mud bucket, the mud bucket is provided with a mud discharge port, and the air flotation releaser and the aerator are both positioned above the mud bucket.
3. A pretreatment device for reducing suspended solids and sulfides in feed water according to claim 1, wherein: the settling chamber is an inclined plate settling chamber.
4. A pretreatment device for reducing suspended solids and sulfides in feed water according to claim 1, wherein: the coagulating chamber is divided into a first coagulating area and a second coagulating area which are communicated with each other, the water inlet unit is arranged on the first coagulating area, the second coagulating area is communicated with the air flotation chamber, the first coagulating area is provided with a first dosing mechanism, and the second coagulating area is provided with a second dosing mechanism.
5. A pretreatment device for reducing suspended solids and sulfides in feed water according to claim 4, wherein: the first medicine adding mechanism comprises a first medicine preparing box for preparing PAC and a first medicine adding pump communicated with the first medicine preparing box and the first coagulation area respectively.
6. A pretreatment device for reducing suspended solids and sulfides in feed water according to claim 4, wherein: the second medicine adding mechanism comprises a second medicine preparing box used for preparing PAM and a second medicine adding pump respectively communicated with the second medicine preparing box and the second coagulation area.
7. A pretreatment device for reducing suspended solids and sulfides in feed water according to claim 4, wherein: and stirrers are arranged in the first coagulation area and the second coagulation area.
8. A leachate treatment system, comprising a pretreatment mechanism and a main treatment mechanism, characterized in that: the pretreatment mechanism comprises a pretreatment device for reducing influent water suspension and sulfide as claimed in any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921425919.XU CN210945112U (en) | 2019-08-30 | 2019-08-30 | Leachate treatment system and pretreatment device for reducing inflow suspended matters and sulfides |
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| CN201921425919.XU CN210945112U (en) | 2019-08-30 | 2019-08-30 | Leachate treatment system and pretreatment device for reducing inflow suspended matters and sulfides |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112390426A (en) * | 2020-10-09 | 2021-02-23 | 武汉泾渭环境科技有限公司 | Landfill leachate ammonia nitrogen removal method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112390426A (en) * | 2020-10-09 | 2021-02-23 | 武汉泾渭环境科技有限公司 | Landfill leachate ammonia nitrogen removal method |
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