CN105645636A - Mud-water separation system and method - Google Patents
Mud-water separation system and method Download PDFInfo
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- CN105645636A CN105645636A CN201610024572.2A CN201610024572A CN105645636A CN 105645636 A CN105645636 A CN 105645636A CN 201610024572 A CN201610024572 A CN 201610024572A CN 105645636 A CN105645636 A CN 105645636A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 137
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000000926 separation method Methods 0.000 title claims abstract description 15
- 239000002351 wastewater Substances 0.000 claims abstract description 35
- 238000007599 discharging Methods 0.000 claims abstract description 12
- 239000000084 colloidal system Substances 0.000 claims abstract description 10
- 239000003814 drug Substances 0.000 claims abstract description 4
- 239000012528 membrane Substances 0.000 claims description 58
- 239000000126 substance Substances 0.000 claims description 25
- 238000006243 chemical reaction Methods 0.000 claims description 24
- 238000000108 ultra-filtration Methods 0.000 claims description 16
- 238000005374 membrane filtration Methods 0.000 claims description 12
- 239000000725 suspension Substances 0.000 claims description 8
- 238000005189 flocculation Methods 0.000 claims description 7
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 7
- 230000016615 flocculation Effects 0.000 claims description 6
- 210000000433 stratum disjunctum Anatomy 0.000 claims description 5
- 239000008346 aqueous phase Substances 0.000 claims description 4
- 238000005345 coagulation Methods 0.000 claims description 4
- 230000015271 coagulation Effects 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 239000008119 colloidal silica Substances 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims description 3
- 229910001385 heavy metal Inorganic materials 0.000 claims description 3
- 238000006386 neutralization reaction Methods 0.000 claims description 3
- 239000003208 petroleum Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 description 14
- 230000008569 process Effects 0.000 description 9
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 7
- 239000010802 sludge Substances 0.000 description 6
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 5
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 5
- 235000011941 Tilia x europaea Nutrition 0.000 description 5
- 238000010348 incorporation Methods 0.000 description 5
- 239000004571 lime Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 239000000701 coagulant Substances 0.000 description 4
- 239000000395 magnesium oxide Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 241000208340 Araliaceae Species 0.000 description 3
- 101100373011 Drosophila melanogaster wapl gene Proteins 0.000 description 3
- 239000002033 PVDF binder Substances 0.000 description 3
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 3
- 235000003140 Panax quinquefolius Nutrition 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 235000008434 ginseng Nutrition 0.000 description 3
- 238000013327 media filtration Methods 0.000 description 3
- 210000004483 pasc Anatomy 0.000 description 3
- 229920001296 polysiloxane Polymers 0.000 description 3
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 238000001223 reverse osmosis Methods 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000001112 coagulating effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 229920002401 polyacrylamide Polymers 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000004065 wastewater treatment Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000007900 aqueous suspension Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
Landscapes
- 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)
Abstract
The invention belongs to the field of water treatment, and particularly relates to a mud-water separation system and method. The system comprises a reactor, a mud film filter, a mud film filter water producing pool and a tubular film filer; a water inlet of the reactor is used for being connected with raw water, and a water outlet of the reactor is connected with a water inlet of the mud film filter through a pipeline and a pump; a water outlet of the mud film filter is connected with the mud film filter water producing pool through a pipeline; a water outlet of the mud film filter water producing pool is connected with the tubular film filter through a pipeline and a pump; the tubular film filter is provided with a first drain outlet used for draining producing water and a second drain outlet used for draining concentrated water, and the second drain outlet is connected with the water inlet of the reactor through a pipeline; a medicine adding opening is formed in the reactor; a mud discharging opening is formed in the mud film filter. By means of the mud-water separation system and method, hardness, suspended solids, petroleum, colloid and organic molecular groups in waste water can be effectively removed, and simpleness and high efficiency are achieved.
Description
Technical field
The invention belongs to water treatment field, particularly relate to a kind of sludge-water separating system and method.
Background technology
Current wastewater treatment, mostly with at utmost reuse or zero-emission for final goal, processes technique with " pretreatment+membrance concentration+evaporative crystallization " for main flow. To containing float, hardness, colloid, petroleum-type and organic waste water, generally all adopt the pretreatment process of " chemical reaction+precipitate and separate+media filtration+ultrafiltration ". Owing to the water inlet of above-mentioned each unit has strict water quality requirement, therefore, each unit all requires higher treatment effeciency, as after requiring precipitate and separate suspension content less than 20mg/L, after media filtration, suspension content is less than 5mg/L, and ultrafiltration water inlet oil content, less than 1mg/L etc., will reach above-mentioned purpose, the occupation of land face of each processing unit is all relatively big, and the water quality finally producing water is difficult to control to.
Therefore, adopting the process technique of " chemical reaction+precipitate and separate+media filtration+ultrafiltration ", technological process length, floor space are big, efficiency is low, and the backflow water yield is big, and water inlet causes periodic shock load; Discharge sludge concentration is high, and mud easily hardens, and affects mud conveying; Produce water water quality to be difficult to control. Therefore, develop a kind of process technique simple, efficient and system is very necessary.
Summary of the invention
Present invention aims to the deficiencies in the prior art, it is provided that a kind of efficient sludge-water separating system and method, make product water meet the influent quality standard of reverse osmosis membrane, to solve above-mentioned technical problem.
For achieving the above object, the invention provides a kind of sludge-water separating system, including: reactor, mud film filter, mud film filter produce pond and tubular membrane filter; The water inlet of this reactor is for being connected with former aqueous phase, and outlet is connected with the water inlet of this mud film filter by pipeline and pump; The outlet of this mud film filter produces pond by pipeline with this mud film filter and is connected; This mud film filter is produced the outlet in pond and is connected with this tubular membrane filter by pipeline and pump;This tubular membrane filter is provided with for discharging the first row mouth of a river producing water and for discharging the second row mouth of a river of dense water, and this second row mouth of a river is connected with the water inlet of this reactor by pipeline; This reactor is provided with dosing mouth; This mud film filter is provided with mud discharging mouth.
Further, this reactor includes many lattice, and every lattice are used for corresponding one or more chemical feeding points, and every lattice are provided with agitator.
Further, in the size of the every lattice of this reactor, chemical feeding points quantity, the pattern of agitator and power and this reactor, the type of chemical reaction adapts.
Further, this mud film filter is from top to bottom sequentially provided with water-yielding stratum, swash plate stratum disjunctum, mud membrane filtration layer and water distribution layer; Being provided with receipts mud mouth, mud drainage slot and discharge pipeline bottom this mud film filter, this receipts mud mouth is connected with this mud drainage slot, and this mud drainage slot is connected with this discharge pipeline.
Further, this mud film filter product pond is furnished with submersible agitator.
Further, this tubular membrane filter includes tubular membrane filter film assembly, and this tubular membrane filter film assembly adopts tube type filter membrance assembly or tubular ultrafiltration membrane module.
The present invention is that embodiment additionally provides a kind of mud-water separation method, and the method comprises the steps:
Step 1, carries out chemical reaction for waste water to this reactor and institute's adding medicine and generates mud alumen ustum, and be stirred, and making waste water is milkiness state;
Step 2, enters the water outlet of this reactor in this mud film filter and filters, carry out mud-water separation, row outside the mud produce mud film filter, and the water of generation enters this mud film filter and produces pond;
Step 3, produces pond water outlet by mud film filter and enters this tubular membrane filter, the float do not removed, petroleum-type, colloid and Organic substance are filtered further, reclaims the product water of this tubular membrane filter, and dense water is back to this reactor reprocesses.
Further, in step 1, the chemical reaction carried out in this reactor includes but not limited to that neutralization, Dual alkali are except hardness, except colloidal silica, removing heavy metals, coagulation, flocculation reaction.
Further, in step 3, the operating condition of this tubular membrane filter is: the highest operation pressure 10bar, pH opereating specification 2��12, maximum allowable operating temperature (M.A.O.T.) 60 DEG C.
Further, the product water water quality requirement of mud film filter in step 3 is carried out obfuscation control, including: when not influential system produces water water quality, the water inlet suspension content of tubular membrane filter is relaxed to 10000mg/L.
Compared with prior art, the invention has the beneficial effects as follows: hardness, float, petroleum-type, colloid and the organic molecule group that can effectively remove in waste water, and simply, efficiently.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of sludge-water separating system of the present invention;
Fig. 2 is the structural representation of a kind of sludge-water separating system mud film filter of the present invention;
Fig. 3 is the structural representation of the present invention a kind of sludge-water separating system tubular membrane filter film assembly.
Detailed description of the invention
Below in conjunction with each embodiment shown in the drawings, the present invention is described in detail; but it should what illustrate is; these embodiments are not limitation of the present invention; those of ordinary skill in the art, according to the equivalent transformation in these embodiment institute work energy, method or structure or replacement, belong within protection scope of the present invention.
Shown in ginseng Fig. 1, Fig. 1 is the structural representation of a kind of sludge-water separating system of the present invention.
Present embodiments provide a kind of sludge-water separating system, including: reactor 1, mud film filter 2, mud film filter produce pond 3 and tubular membrane filter 4;The water inlet 11 of reactor 1 is for being connected with former aqueous phase, and outlet is connected with the water inlet of mud film filter 2 by pipeline and pump 51; The outlet of mud film filter 2 produces pond 3 by pipeline with mud film filter and is connected; Mud film filter is produced the outlet in pond 3 and is connected with tubular membrane filter 4 by pipeline and pump 51; Tubular membrane filter 4 is provided with for discharging the first row mouth of a river 41 producing water and for discharging the second row mouth of a river 42 of dense water, and the second row mouth of a river 42 is connected with the water inlet 11 of reactor 1 by pipeline; Reactor 1 is provided with dosing mouth 12; Mud film filter 2 is provided with mud discharging mouth 28.
The sludge-water separating system that the present embodiment provides, the water inlet of reactor 1 is with former aqueous phase even, water outlet enters mud film filter 2 by pipeline under the castering action of pump, row outside the mud that mud film filter 2 produces, the water produced enters mud film filter by pipeline and produces pond 3, mud film filter produces the water outlet in pond 3 and enters tubular ultra-filtration membrane 4, the product Water Sproading of tubular ultra-filtration membrane 4 under the castering action of pump by pipeline, and dense water is back to reactor 1 by pipeline under the castering action of pump. Waste water enters reactor 1, and after chemical reaction generates mud alumen ustum, in milkiness state under stirring. Reactor 1 water outlet enters into mud film filter 2 and carries out mud-water separation, forms mud membrane filtration layer and waste water is filtered, and the mud that mud film filter 2 produces is arranged from mud discharging mouth 28, and the water of generation enters into mud film filter and produces pond 3. Mud film filter 2 produces water entrance tubular membrane filter 4 and filters, and the product Water Sproading of tubular membrane filter 4, dense water is back to reactor 1 (dense water circulation) by pump 51. This system can remove the hardness in waste water, float, petroleum-type, colloid and organic molecule group by said process simultaneously, and simply, efficiently.
In the present embodiment, reactor 1 includes many lattice, and every lattice are used for corresponding one or more chemical feeding points, and every lattice are provided with agitator, and specific embodiment includes:
When waste water suspension content is higher, reactor 1 sets two lattice, respectively corresponding coagulant, two chemical feeding points of flocculant, the time of staying 2min of coagulating basin, the time of staying 10min of flocculation basin, belt stirrer.
When waste water hardness is higher and non-carbonate hardness is relatively low, reactor 1 sets up lattice, corresponding Calx chemical feeding points, wherein lime reaction device time of staying 20min, belt stirrer.
When waste water hardness is higher and non-carbonate hardness is higher, reactor 1 sets up two lattice, corresponding Calx, two chemical feeding points of soda, wherein lime reaction device time of staying 20min, soda reactor residence time 20min, belt stirrer.
When waste water silicone content is higher, reactor 1 sets up lattice, corresponding magnesia mixture chemical feeding points, wherein removes pasc reaction device time of staying 20min, belt stirrer.
In the present embodiment, in the every size of lattice of reactor 1, chemical feeding points quantity, the pattern of agitator and power and reactor 1, the type of chemical reaction adapts.
Shown in ginseng Fig. 2, Fig. 2 is the structural representation of a kind of sludge-water separating system mud film filter of the present invention.
In the present embodiment, mud film filter 2 is from top to bottom sequentially provided with water-yielding stratum 21 (being provided with outlet 29), swash plate stratum disjunctum 22, mud membrane filtration layer 23 and water distribution layer 24; Being provided with receipts mud mouth 25, mud drainage slot 26 and discharge pipeline 27 bottom mud film filter 2, receive mud mouth 25 and be connected with mud drainage slot 26, mud drainage slot 26 is connected with discharge pipeline 27. Wastewater inlet pipe 28 enters into bottom mud film filter 2, flows out through water distribution layer 24 and rises, and forms mud membrane filtration layer 23.The horn mouth receiving mud mouth 25 is formed about low-pressure area, thus the body refuse sucking superposed layer constantly enters receipts mud mouth 25, body refuse is discharged from mud drainage slot 26 continuously through discharge pipeline 27. Waste water continues to rise and by swash plate stratum disjunctum 22, go out through water outlet concentrated flow 21. The thickness of mud membrane filtration layer 23 can be adjusted according to waste water quality situation, and adjusting range is generally 10-100mm.
In the present embodiment, when the waste water of pressure 1-10bar with 10-100m/h by the water distribution layer 24 of mud film filter 2 time, receive mud mouth 25 at center and be formed about low-pressure area, mud mouth 25 is received thus being sucked by the backflow body refuse being several times as much as former water, it is fully contacted, reacts, significantly increase intergranular adsorption, accelerate flocculation process. it is formed over mud membrane filtration layer 23 in water distribution layer 24, mud membrane filtration layer 23 constantly intercepts the float in waste water, Organic substance, the pollutant such as petroleum-type and colloid and constantly thicken, when mud membrane filtration layer 23 thickness increases to 1000mm, pattern with excess sludge is entered mud drainage slot 26 by low-pressure area by the unwanted contaminants that mud membrane filtration layer 23 intercepts, interception due to mud membrane filtration layer 23, the effects such as absorption, the moisture content of excess sludge changes between 90-96%, waste water rises to swash plate Disengagement zone after swash plate stratum disjunctum 22 and removes float further, the material such as Organic substance and colloid.
In the present embodiment, mud film filter product pond 3 is furnished with submersible agitator 31.
In the present embodiment, tubular membrane filter 4 includes tubular membrane filter film assembly, and tubular membrane filter film assembly can adopt tube type filter membrance assembly or tubular ultrafiltration membrane module, but is not limited to this.
Shown in ginseng Fig. 3, Fig. 3 is the structural representation of the present invention a kind of sludge-water separating system tubular membrane filter film assembly. The tubular membrane filter film assembly of the present embodiment includes multiple tubular ultrafiltration membrane module 44, and tubular ultrafiltration membrane module 44 is made up of many tubular ultra-filtration membranes 45. By holding clip 46 and side clip 47 to connect between tubular ultrafiltration membrane module 44, outside is provided with sample tap 48. Waste water is entered tubular ultra-filtration membrane 45 by water inlet 43 under pressure, and mud is trapped and is circulated to reactor 1 by the second row mouth of a river 42, and clear water is flowed out by the first row mouth of a river 41 through tubular ultra-filtration membrane 45.
In the present embodiment, the material of tubular membrane filter 4 can be selected for hydrophilic oleophobic property PVDF, PA or PES, but it is not limited to this, the present embodiment selects PVDF material, and PVDF material has excellent stain resistance and the resistance to negative pressure of 0.5bar resists flat performance, and design flux is up to 70-100L/ (m2*h), the big passage of 8mm can by mud effectively catching, and do not result in membrane tube blocking and pollute, and effluent quality is good, can directly be combined with counter-infiltration system. The membrane tube internal diameter of tubular membrane filter 4 is between 5mm��12.7mm.
The present invention is that embodiment additionally provides a kind of mud-water separation method, and the method comprises the steps:
Step 1, carries out chemical reaction for waste water to reactor 1 and institute's adding medicine and generates mud alumen ustum, and be stirred, and making waste water is milkiness state.
The chemical reaction carried out in reactor 1 includes but not limited to that neutralization, Dual alkali are except hardness, except colloidal silica, removing heavy metals, coagulation, flocculation reaction. According to waste water quality situation: when waste water is high suspended matter waste water, reactor sets two lattice, respectively corresponding coagulant, two chemical feeding points of flocculant, the time of staying 2min of coagulating basin, the time of staying 10min of flocculation basin, belt stirrer;When waste water hardness is higher and non-carbonate hardness is relatively low, reactor sets up lattice, corresponding Calx chemical feeding points, wherein lime reaction device time of staying 20min, belt stirrer; When waste water hardness is higher and non-carbonate hardness is higher, reactor sets up two lattice, corresponding Calx, two chemical feeding points of soda, wherein lime reaction device time of staying 20min, soda reactor residence time 20min, belt stirrer; When waste water silicone content is higher, reactor sets up lattice, corresponding compound magnesia mixture chemical feeding points, wherein removes pasc reaction device time of staying 20min, belt stirrer.
Step 2, enters the water outlet of reactor 1 in this mud film filter 2 and filters, carry out mud-water separation, arranged outside the mud produced by mud film filter 2, and the water of generation enters mud film filter and produces pond 3.
Reactor water outlet enters into mud film filter and carries out mud-water separation, form mud film and waste water is carried out mud membrane filtration, mud rete thickens with the prolongation of working time, strengthen filter effect further, when mud film thickness rises to certain thickness, unnecessary mud film, by row outside mud discharging mouth, filters the clear water produced and enters into mud film filter product pond.
Step 3, produces pond water outlet by mud film filter 2 and enters tubular membrane filter 4, the float do not removed, petroleum-type, colloid and Organic substance are filtered further, reclaims the product water of tubular type film filter 4, and dense water is back to reactor 1 reprocesses.
Mud film filter produces water and enters tubular membrane filter, the water inlet of tubular membrane filter is connected with mud film filter producing region and reactor water inlet pipe/mouth respectively with concentrated water spout, mud film filter is produced float, petroleum-type, colloid and the Organic substance do not removed in water and is removed further by tubular membrane filter, it produces water can direct reuse or as feed water by reverse osmosis, the pollutant being trapped are back to reactor by concentrated water spout.
The product water water quality requirement of mud film filter 2 can carry out obfuscation control, can change as produced water suspension content between 1-10000mg/L; The water inlet suspension content of tubular membrane filter can be loosened to 10000mg/L, and the product water water quality of not influential system. This obfuscation controls to produce to provide the benefit that, has saved the floor space of system, and has improve the treatment effeciency of system; Mud film filter spoil disposal is cotton-shaped suspended state mud, it is simple to conveying, sludge transportation equipment and device for dehydrating sladge waste will not be caused loss, can steady in a long-term, run continuously.
In the present embodiment, the operating condition of tubular membrane filter 4 is: the highest operation pressure 10bar, pH opereating specification 2��12, maximum allowable operating temperature (M.A.O.T.) 60 DEG C.
Below by instantiation, the present invention is described in further detail.
This example adopts above-mentioned sludge-water separating system and method that certain chemical company's waste water is processed, and the process water yield is 1800m3/ h, water quality situation is as shown in table 1:
Certain chemical company of enterprise waste water quality of table 1
As can be seen from Table 1, this waste water suspension content is high, and hardness is high and non-carbonate hardness is higher, and silicone content is high. According to waste water quality feature, adopting above-mentioned mud-water separation method to process, its processing procedure includes:
1) waste water enters reactor, and reactor divides five lattice, respectively corresponding coagulant, flocculant, Calx, soda, five chemical feeding points of desiliconizing agent. Coagulation lattice select aluminium polychlorid (PAC) coagulant, and adding concentration is 20mg/L, and incorporation time is 2min; Flocculation lattice select polyacrylamide (PAM) flocculant, and adding concentration is 1mg/L, and incorporation time is 20min;Lime reaction lattice Lime-Injecting concentration is 874mg/L, and incorporation time is 20min; It is 578mg/L that soda reaction lattice soda adds concentration, and incorporation time is 20min; Except pasc reaction lattice select magnesia mixture, it is 15mg/L that magnesia mixture adds concentration, and incorporation time is 20min. Reactor water outlet is milkiness state under stirring.
2) reactor water outlet enters mud film filter, and row outside the mud that mud film filter produces, sludge output is 309m3/h, and moisture content is 99%. The water produced enters into mud film filter and produces pond, and the product pond time of staying is 0.5h, if hydrochloric acid chemicals dosing plant, is adjusted to 7 from 10.5 by its PH.
3) mud film filter produces pond water outlet and enters tubular ultra-filtration membrane, and " membrane module of 3m, the product Water Sproading of tubular ultra-filtration membrane, dense water is back to reactor in selection 8.
Present treatment technique change of water quality is as shown in table 2:
Change of water quality after certain chemical company of enterprise wastewater treatment of table 2
By above-mentioned result it can be seen that utilize the system and method for the present invention, can effectively remove the float in waste water, hardness, silicon etc., make product water meet the influent quality standard of reverse osmosis membrane.
The invention provides a kind of sludge-water separating system simple, efficient and method, have the advantages that
1) system and technological process are simple, and floor space is little;
2) the backflow water yield is few, and water inlet causes periodic shock load little;
3) operating cost is low, and equipment investment is few;
4) effluent quality good (suspension content, less than 1mg/L, is similar to tradition ultrafilter membrane), and obfuscation control can be carried out.
5) mud film filter spoil disposal is cotton-shaped suspended state mud, it is simple to conveying, sludge transportation equipment and device for dehydrating sladge waste will not be caused loss, can steady in a long-term, run continuously.
The a series of detailed description of those listed above is only for illustrating of the feasibility embodiment of the present invention; they also are not used to limit the scope of the invention, and all should be included within protection scope of the present invention without departing from the skill of the present invention equivalent implementations made of spirit or change.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when without departing substantially from the spirit of the present invention or basic feature, it is possible to realize the present invention in other specific forms. Therefore, no matter from which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the invention rather than described above limits, it is intended that all changes in the implication of the equivalency dropping on claim and scope included in the present invention.
Claims (10)
1. a sludge-water separating system, it is characterised in that including: reactor, mud film filter, mud film filter produce pond and tubular membrane filter; The water inlet of described reactor is for being connected with former aqueous phase, and outlet is connected with the water inlet of described mud film filter by pipeline and pump; The outlet of described mud film filter produces pond by pipeline with described mud film filter and is connected; Described mud film filter is produced the outlet in pond and is connected with described tubular membrane filter by pipeline and pump; Described tubular membrane filter is provided with for discharging the first row mouth of a river producing water and for discharging the second row mouth of a river of dense water, and the described second row mouth of a river is connected with the water inlet of described reactor by pipeline; Described reactor is provided with dosing mouth; Described mud film filter is provided with mud discharging mouth.
2. a kind of sludge-water separating system according to claim 1, it is characterised in that described reactor includes many lattice, and every lattice are used for corresponding one or more chemical feeding points, and every lattice are provided with agitator.
3. a kind of sludge-water separating system according to claim 2, it is characterised in that the size of the every lattice of described reactor, chemical feeding points quantity, the pattern of agitator and power and in described reactor the type of chemical reaction adapt.
4. a kind of sludge-water separating system according to claim 1, it is characterised in that described mud film filter is from top to bottom sequentially provided with water-yielding stratum, swash plate stratum disjunctum, mud membrane filtration layer and water distribution layer; Being provided with receipts mud mouth, mud drainage slot and discharge pipeline bottom described mud film filter, described receipts mud mouth is connected with described mud drainage slot, and described mud drainage slot is connected with described discharge pipeline.
5. a kind of sludge-water separating system according to claim 1, it is characterised in that described mud film filter produces pond and is furnished with submersible agitator.
6. a kind of sludge-water separating system according to claim 1, it is characterised in that described tubular membrane filter includes tubular membrane filter film assembly, and described tubular membrane filter film assembly adopts tube type filter membrance assembly or tubular ultrafiltration membrane module.
7. a mud-water separation method, the sludge-water separating system described in the method application claim 1, it is characterised in that comprise the steps:
Step 1, carries out chemical reaction for waste water to described reactor and institute's adding medicine and generates mud alumen ustum, and be stirred, and making waste water is milkiness state;
Step 2, enters the water outlet of described reactor in described mud film filter and filters, carry out mud-water separation, row outside the mud produce mud film filter, and the water of generation enters described mud film filter and produces pond;
Step 3, mud film filter is produced pond water outlet and enters described tubular membrane filter, the float do not removed, petroleum-type, colloid and Organic substance are filtered further, reclaims the product water of described tubular membrane filter, and dense water is back to described reactor reprocesses.
8. a kind of mud-water separation method according to claim 7, it is characterised in that in step 1, the chemical reaction carried out in described reactor includes but not limited to that neutralization, Dual alkali are except hardness, except colloidal silica, removing heavy metals, coagulation, flocculation reaction.
9. a kind of mud-water separation method according to claim 7, it is characterised in that in step 3, the operating condition of described tubular membrane filter is: the highest operation pressure 10bar, pH opereating specification 2��12, maximum allowable operating temperature (M.A.O.T.) 60 DEG C.
10. a kind of mud-water separation method according to claim 7, it is characterized in that, also include the product water water quality requirement of mud film filter in step 3 is carried out obfuscation control, including: when not influential system produces water water quality, the water inlet suspension content of tubular membrane filter is relaxed to 10000mg/L.
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| CN113788738A (en) * | 2021-10-18 | 2021-12-14 | 北京中科康仑环境科技研究院有限公司 | Comprehensive treatment method of alcohol, water and oil mixed solution |
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| CN113788738B (en) * | 2021-10-18 | 2023-08-22 | 北京中科康仑环境科技研究院有限公司 | Comprehensive treatment method of alcohol, water and oil mixed solution |
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