CN106115976A - A kind of series connection for landfill leachate treatment and disc tube reverse osmosis (dt-ro) equipment in parallel and application process thereof - Google Patents

A kind of series connection for landfill leachate treatment and disc tube reverse osmosis (dt-ro) equipment in parallel and application process thereof Download PDF

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Publication number
CN106115976A
CN106115976A CN201610676432.3A CN201610676432A CN106115976A CN 106115976 A CN106115976 A CN 106115976A CN 201610676432 A CN201610676432 A CN 201610676432A CN 106115976 A CN106115976 A CN 106115976A
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permeate
series connection
reverse osmosis
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level
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CN201610676432.3A
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CN106115976B (en
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罗煜峰
刘阳
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Changsha Wei Baote Environmental Protection Science And Technology Co Ltd
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Changsha Wei Baote Environmental Protection Science And Technology Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/20Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/66Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/06Contaminated groundwater or leachate
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/002Construction details of the apparatus
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use
    • Y02A20/124Water desalination
    • Y02A20/131Reverse-osmosis

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

Abstract

The invention discloses a kind of series connection for landfill leachate treatment and disc tube reverse osmosis (dt-ro) equipment in parallel and application process thereof, this equipment includes one-level disc tube reverse osmosis (dt-ro) film post (1), two grades of disc tube reverse osmosis (dt-ro)s film post (2) and stripping tower (3), by the connection between pipeline and in position arrange valve, achieve one-level disc tube reverse osmosis (dt-ro) film post (1) and two grades of disc tube reverse osmosis (dt-ro)s film post (2) switch between being connected in series and being connected in parallel, the automatic operating of this equipment is achieved by control system, reduce the operating cost of hand labor intensity and equipment.When using series connected mode, energy utilization rate can be improved, improve the clearance of ammonia nitrogen, reduce the pressures compromises to two grades of disc tube reverse osmosis (dt-ro) film posts, extension device service life;When employing is connected in parallel pattern, the treating capacity of percolate can be increased, improve percolate treatment effeciency.

Description

A kind of series connection for landfill leachate treatment and disc tube reverse osmosis (dt-ro) equipment in parallel and Its application process
Technical field
The invention belongs to water-treatment technology field, particularly relate to a kind of series connection for landfill leachate treatment and dish in parallel Tubular type reverse osmosis (RCDT) equipment and application process thereof.
Background technology
RCDT (Radial Channel Disc Tube) full name is radiation paths disc tube reverse osmosis (dt-ro).Disc tube reverse osmosis (dt-ro) The principle of film post is: make the hydrone in percolate pass through reverse osmosis membrane by pressure, overwhelming majority polluters (such as ammonia nitrogen Deng) retain, thus reach to purify the purpose of percolate.Its equipment processes the technological process of percolate: regulating reservoir percolate warp Pump is promoted to the former water storage tank of percolate, after carrying out the simple pretreatment such as pH value regulation, sand filter, core type filter, enters first Level RCDT, the permeate produced after one-level RCDT processes enters second level RCDT and processes further, and one-level RCDT concentrated solution is arranged Wait to concentrated solution reservoir and recharge process.Permeate after second level RCDT processes enters qualified discharge after degassing tower processes, Merge after secondary concentration liquid return one-level RCDT and continue with.
At present, the two-stage type radiation paths disc tube reverse osmosis (dt-ro) of the RCDT equipment usually series connection processing percolate sets Standby.This traditional RCDT equipment is usually present following defect: (1) effluent quality ammonia-nitrogen content is more difficult up to standard;(2) coagulation Water outlet be directly entered two stage treatment, middle without buffer stage, the energy loss of pump is higher, and cannot carry out process hydraulic pressure Accurately control, add the pressures compromises to two grades of RCDT films, easily produce pressure differential infringement diaphragm, shorten two grades of RCDT films Service life.
Summary of the invention
The technical problem to be solved is, overcomes the deficiency and defect mentioned in background above technology, it is provided that one Planting the series connection for landfill leachate treatment and disc tube reverse osmosis (dt-ro) equipment in parallel and application process thereof, this equipment can make two dish Tubular type reverse osmosis membrane post switches between series connection and parallel connection, can increase the treating capacity of percolate when paralleling model;At string The clearance of ammonia nitrogen can be improved during gang mould formula, reduce the pressures compromises to two grades of disc tube reverse osmosis (dt-ro) film posts, making of extension device With the life-span, this equipment is applied widely, and water outlet can qualified discharge.
For solving above-mentioned technical problem, the technical scheme that the present invention proposes is:
A kind of series connection for landfill leachate treatment and disc tube reverse osmosis (dt-ro) equipment in parallel, including percolate water inlet pipe Road, one-level disc tube reverse osmosis (dt-ro) film post, two grades of disc tube reverse osmosis (dt-ro) film posts and stripping tower;
Described percolate inlet channel includes water inlet manifold, one-level water inlet pipe and two grades of water inlet pipes, described one-level water inlet pipe One end be connected with water inlet manifold, the other end is connected with one-level disc tube reverse osmosis (dt-ro) film post, one end of described two grades of water inlet pipes with Water inlet manifold connects, and the other end and two grades of disc tube reverse osmosis (dt-ro) film posts are connected, and described one-level water inlet pipe is provided with one-level water pump, Installed successively to the one end connecting two grades of disc tube reverse osmosis (dt-ro) film posts by the one end connecting water inlet manifold on described two grades of water inlet pipes There are water intaking valve and two grades of water pumps;
The permeate outlet of described one-level disc tube reverse osmosis (dt-ro) film post and the permeate of two grades of disc tube reverse osmosis (dt-ro) film posts go out Mouth is connected to one-level permeate discharge pipe and two grades of permeate discharge pipes, and described two grades of permeate discharge pipes are provided with Cross liquid and collect valve, two grades of permeate discharge pipes collect valve and the permeate of two grades of disc tube reverse osmosis (dt-ro) film posts in described permeate Connect between outlet and have series connection permeate discharge pipe, described series connection permeate discharge pipe is provided with series connection permeate dump valve, Described one-level permeate discharge pipe and two grades of permeate discharge pipes are connected and jointly connect a permeate gathering tube, described permeate Gathering tube is connected to stripping tower, and permeate gathering tube connects an alkali liquor conveyer device;
The permeate outlet of described stripping tower connects a series connection permeate reuse pipe, described series connection permeate reuse pipe another One end is connected and is connected between water intaking valve and two grades of water pumps with two grades of water inlet pipes, and series connection permeate reuse pipe passes through with connecting Liquid discharge pipe connects, and series connection permeate reuse pipe is provided with series connection permeate reuse valve, series connection permeate reuse pipe and water inlet House steward is all connected with an acid conveying device.
The above-mentioned series connection for landfill leachate treatment and disc tube reverse osmosis (dt-ro) equipment in parallel, it is preferred that described series connection With disc tube reverse osmosis (dt-ro) equipment in parallel also include a control system, described control system include controller, influent quality detector, One-level permeate detector, series connection permeate detector and permeate discharge detector, and described influent quality detector is installed on On described water inlet manifold, described one-level permeate detector is installed on described one-level permeate discharge pipe, and described series connection passes through Liquid detector is installed on described series connection permeate discharge pipe, and described permeate is discharged detector and is installed on the saturating of described stripping tower Crossing liquid exit, described influent quality detector, one-level permeate detector, series connection permeate detector and permeate discharge inspection Surveying device to be all connected with controller, described one-level water pump, water intaking valve, two grades of water pumps, permeate collect valve, series connection permeate dump valve All it is connected with controller with series connection permeate reuse valve, controller controls one-level water pump, water intaking valve, two grades of water pumps, permeate Collect being turned on and off of valve, series connection permeate dump valve and series connection permeate reuse valve.
The above-mentioned series connection for landfill leachate treatment and disc tube reverse osmosis (dt-ro) equipment in parallel, it is preferred that described alkali liquor Conveyer device includes the alkali pharmacy jar being connected with permeate gathering tube by pipeline, and described alkali pharmacy jar is with permeate gathering tube even Being provided with alkali dosing pump on the pipeline connect, described acid conveying device includes and connects permeate reuse pipe and water inlet manifold passes through The acid treatment tank that pipeline connects, the pipeline that described acid treatment tank is connected with series connection permeate reuse pipe and water inlet manifold is provided with Acid dosing pump, described alkali dosing pump and acid dosing pump are all connected with controller, controller control alkali dosing pump and acid dosing pump Be turned on and off.
The above-mentioned series connection for landfill leachate treatment and disc tube reverse osmosis (dt-ro) equipment in parallel, it is preferred that described two grades Being equiped with between water intaking valve and series connection permeate reuse pipe on water inlet pipe into water one way stop peturn valve, described two grades of permeate are discharged Collecting in permeate on Guan and be equiped with two grades of permeate check-valves between valve and permeate gathering tube, described series connection permeate is discharged Being equiped with series connection permeate check-valves on Guan between series connection permeate dump valve and series connection permeate reuse pipe, described series connection is saturating Cross between series connection permeate reuse valve and series connection permeate discharge pipe, on liquid reuse pipe, be equiped with series connection permeate reuse non-return Valve.
The above-mentioned series connection for landfill leachate treatment and disc tube reverse osmosis (dt-ro) equipment in parallel, it is preferred that described one-level The concentrated solution outlet of disc tube reverse osmosis (dt-ro) film post and two grades of disc tube reverse osmosis (dt-ro) film posts is connected to primary concentration liquid discharge pipe With secondary concentration liquid discharge pipe, described primary concentration liquid discharge pipe is connected with secondary concentration liquid discharge pipe, and primary concentration liquid is arranged Go out to be equiped with on pipe concentrated solution check-valves.
Another aspect of the present invention provides a kind of above-mentioned series connection for landfill leachate treatment and dish tubular type reverse osmosis in parallel The application process of equipment thoroughly, comprises the following steps:
S1, the influent quality detector being located on water inlet manifold carry out on-line checking to water inlet electrical conductivity, generate water inlet electricity Described water inlet electrical conductivity detection signal is also sent to controller by conductance detection signal;
S2, controller control water intaking valve according to the water inlet electrical conductivity detection signal received, permeate collects valve, series connection saturating Cross liquid dump valve and series connection being turned on and off anti-to one-level disc tube reverse osmosis (dt-ro) film post and two grades of dish tubular types of permeate reuse valve Permeable membrane post switches between series connection and two kinds of connected modes in parallel, carries out the percolate being passed through in water inlet manifold Process.
Above-mentioned application process, it is preferred that in described step S2, controller is according to the electrical conductivity detection signal control received Water intaking valve processed, permeate collect valve, series connection permeate dump valve and series connection being turned on and off one-level dish of permeate reuse valve Tubular type reverse osmosis membrane post and two grades of disc tube reverse osmosis (dt-ro) film posts switch over concrete between series connection and two kinds of connected modes in parallel Refer to:
When electrical conductivity of intaking is less than or equal to 10000 μ S/cm, controller controls to open water intaking valve and permeate collects Valve, cuts out series connection permeate dump valve and series connection permeate reuse valve, by described one-level disc tube reverse osmosis (dt-ro) film post and two grades of dish Tubular type reverse osmosis membrane post is connected in parallel;
When electrical conductivity of intaking is more than 10000 μ S/cm, controller controls to cut out water intaking valve and permeate collects valve, opens Series connection permeate dump valve and series connection permeate reuse valve, by described one-level disc tube reverse osmosis (dt-ro) film post and two grades of dish tubular type reverse osmosis Permeable membrane post is connected in series.
Above-mentioned application process, it is preferred that in described step S2, at the percolate being passed through in water inlet manifold The detailed process of reason is:
When described one-level disc tube reverse osmosis (dt-ro) film post and two grades of disc tube reverse osmosis (dt-ro) film posts are connected in parallel, controller controls Open acid dosing pump and in water inlet manifold, add acid solution by inlet flow-patterm regulation to 5.5-6.5;Then controller controls to open one-level Percolate after regulation pH is each led into one-level disc tube reverse osmosis (dt-ro) film post and two grades of dish tubular type reverse osmosis by water pump and two grades of water pumps Permeable membrane post processes;The concentrated solution obtained after process discharges bank of tubes through primary concentration liquid discharge pipe and secondary concentration liquid respectively Go out;The permeate obtained after process enters permeate respectively after one-level permeate discharge pipe and two grades of permeate discharge pipes are discharged Gathering tube;Controller controls to open alkali dosing pump and adds alkali liquor in permeate gathering tube, will transmit through the pH regulator of liquid to 7-8, Then will transmit through in liquid is passed through stripping tower and carry out stripping and make the ammonia-nitrogen content in permeate be reduced to 25mg/m3Hereinafter, then Will transmit through liquid to discharge;
When described one-level disc tube reverse osmosis (dt-ro) film post and two grades of disc tube reverse osmosis (dt-ro) film posts are connected in series, controller controls Open acid dosing pump and in water inlet manifold, add acid solution by inlet flow-patterm regulation to 5.5-6.5;Then controller controls to open one-level Percolate after regulation pH is passed through one-level disc tube reverse osmosis (dt-ro) film post and processes by water pump;The concentrated solution obtained after process is through one Level concentrated solution discharge pipe is discharged;The permeate obtained after process enters permeate gathering tube through one-level permeate discharge pipe, controls Device controls to open alkali dosing pump and adds alkali liquor in permeate gathering tube, will transmit through the pH regulator of liquid to 10.5-11.5, then general Permeate carries out stripping in being passed through stripping tower, and the permeate after stripping flows into series connection permeate reuse pipe, and controller controls to open Acid dosing pump adds acid solution in series connection permeate reuse pipe and will transmit through liquid pH regulator to 6.5-7.0;It is adjusted passing through after pH Liquid is entered two grades of disc tube reverse osmosis (dt-ro) film posts by permeate reuse pipe of connecting and carries out after-treatment, and obtain after after-treatment is dense Contracting liquid is discharged by secondary concentration liquid discharge pipe, and the permeate obtained after after-treatment is discharged by permeate discharge pipe of connecting.
Compared with prior art, it is an advantage of the current invention that:
(1) by being attached by the pipeline in equipment, and arranging valve in relevant position, this equipment can realize according to oozing One-level disc tube reverse osmosis (dt-ro) film post and two grades of disc tube reverse osmosis (dt-ro) film posts are being connected and between parallel connection by filtrate influent quality situation Carry out free switching;When employing is connected in series, the permeate after one-level disc tube reverse osmosis (dt-ro) film post processes enters stripping tower Carry out stripping, then enter back into two grades of disc tube reverse osmosis (dt-ro) film posts and carry out after-treatment, be not direct through the water outlet of single treatment Carry out after-treatment, reduce the consumption of the energy, reduce the pressures compromises to two grades of disc tube reverse osmosis (dt-ro) film posts, extend The service life of two grades of disc tube reverse osmosis (dt-ro) film posts;When employing is connected in parallel, the treating capacity of percolate can be improved.
(2) by control system to the permeate ammonia-nitrogen content in water inlet electrical conductivity, one-level permeate discharge pipe, series connection thoroughly The permeate ammonia-nitrogen content crossing the permeate ammonia-nitrogen content in liquid discharge pipe and outflow stripping tower detects, and by controller Control being turned on and off of respective valves and pump, and then realize freely switching to percolate between series connection and parallel connection Reason, it is achieved that the automated job of this equipment, improves the treatment effeciency of equipment, reduces the fortune of hand labor intensity and equipment Row cost.
(3) ammonia-nitrogen content of the permeate after this equipment can detect process, it is ensured that permeate qualified discharge, and this equipment Applied widely, floor space is little, and maintaining is easy.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is the present invention Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to according to These accompanying drawings obtain other accompanying drawing.
Fig. 1 is the present invention series connection for landfill leachate treatment and the structural representation letter of disc tube reverse osmosis (dt-ro) equipment in parallel Figure.
Marginal data:
1, one-level disc tube reverse osmosis (dt-ro) film post;2, two grades of disc tube reverse osmosis (dt-ro) film posts;3, stripping tower;6, water inlet manifold;7、 One-level water inlet pipe;8, two grades of water inlet pipes;9, one-level water pump;10, water intaking valve;11, two grades of water pumps;12, one-level permeate discharge pipe; 13, two grades of permeate discharge pipes;14, permeate collects valve;15, series connection permeate discharge pipe;16, series connection permeate dump valve; 17, permeate gathering tube;18, series connection permeate reuse pipe;19, series connection permeate reuse valve;20, controller;21, influent quality Detector;22, one-level permeate detector;23, series connection permeate detector;24, permeate discharges detector;25, alkali medicament Tank;26, alkali dosing pump;27, acid treatment tank;28, acid dosing pump;29, water inlet one way stop peturn valve;30, two grades of permeate check-valves; 31, series connection permeate check-valves;32, series connection permeate reuse check-valves;33, primary concentration liquid discharge pipe;34, secondary concentration liquid Discharge pipe;35, concentrated solution check-valves.
Detailed description of the invention
For the ease of understanding the present invention, below in conjunction with Figure of description and preferred embodiment, the present invention is made more complete Face, describe meticulously, but protection scope of the present invention is not limited to embodiment in detail below.
It should be strongly noted that when a certain element is described as on " be connected to or be communicated in " another element, it can Being to be directly connected to or connect on another element, it is also possible to be to be indirectly connected with by other intermediate connectors or connect at another On element.
Unless otherwise defined, the implication that all technical term used hereinafter is generally understood that with those skilled in the art Identical.Technical term used herein is intended merely to describe the purpose of specific embodiment, is not intended to limit the present invention Protection domain.
Unless otherwise specified, the various raw materials used in the present invention, reagent, instrument and equipment etc. all can pass through city Field is commercially available or can be prepared by existing method.
Embodiment
As it is shown in figure 1, the present invention connecting and the one of disc tube reverse osmosis (dt-ro) equipment in parallel for landfill leachate treatment Embodiment, this series connection and disc tube reverse osmosis (dt-ro) equipment in parallel include percolate inlet channel, one-level disc tube reverse osmosis (dt-ro) film post 1, Two grades of disc tube reverse osmosis (dt-ro) film posts 2, stripping tower 3, alkali pharmacy jar 25, acid treatment tank 27 and control system.Wherein, percolate water inlet Pipeline includes water inlet manifold 6, one-level water inlet pipe 7 and two grades of water inlet pipes 8, and one end of this one-level water inlet pipe 7 is with water inlet manifold 6 even Connecing, the other end is connected with one-level disc tube reverse osmosis (dt-ro) film post 1, and one end of these two grades of water inlet pipes 8 is connected with water inlet manifold 6, another End is connected with two grades of disc tube reverse osmosis (dt-ro) film posts 2, and percolate can be respectively along one-level water inlet pipe after this water inlet manifold 6 enters 7 and two grades of water inlet pipes 8 enter one-level disc tube reverse osmosis (dt-ro) film post 1 in or two grades of disc tube reverse osmosis (dt-ro) film posts 2 in.This one-level is intake One-level water pump 9 is installed, by connecting one end of water inlet manifold 6 to connecting two grades of disc tube reverse osmosis (dt-ro)s on two grades of water inlet pipes 8 on pipe 7 One end of film post 2 is sequentially installed with water intaking valve 10 and two grades of water pumps 11.Under the effect of one-level water pump 9 or two grades of water pumps 11 respectively Percolate is pressed in one-level disc tube reverse osmosis (dt-ro) film post 1 or two grades of disc tube reverse osmosis (dt-ro) film posts 2.One-level disc tube reverse osmosis (dt-ro) film The permeate outlet of post 1 and the permeate outlet of two grades of disc tube reverse osmosis (dt-ro) film posts 2 are connected to one-level permeate discharge pipe 12 and two grades of permeate discharge pipes 13, permeate after treatment is respectively from this one-level permeate discharge pipe 12 and two grades of permeate Discharge pipe 13 is discharged.Permeate is installed on these two grades of permeate discharge pipes 13 and collects valve 14, on two grades of permeate discharge pipes 13 Collecting to connect between the permeate outlet of valve 14 and two grades of disc tube reverse osmosis (dt-ro) film posts 2 in this permeate has series connection permeate to discharge Pipe 15, this series connection permeate discharge pipe 15 is provided with series connection permeate dump valve 16.One-level permeate discharge pipe 12 and two grades Permeate discharge pipe 13 is connected and is jointly connected with a permeate gathering tube 17, and permeate after treatment is respectively from one Level permeate discharge pipe 12 and two grades of permeate discharge pipes 13 enter this permeate gathering tube 17 after discharging.This permeate gathering tube 17 are connected to stripping tower 3, and permeate gathering tube 17 connects alkali liquor conveyer device.This alkali liquor conveyer device is for collect with permeate The alkali pharmacy jar 25 that pipe 17 is connected by pipeline, the pipeline that this alkali pharmacy jar 25 is connected with permeate gathering tube 17 is provided with alkali Dosing pump 26.The permeate outlet of stripping tower 3 connects a series connection permeate reuse pipe 18, this series connection permeate reuse pipe 18 with Series connection permeate discharge pipe 15 connects, and series connection permeate reuse pipe 18 is provided with series connection permeate reuse valve 19.When this equipment In two disc tube reverse osmosis (dt-ro) film posts used in parallel time this series connection permeate reuse valve 19 close, permeate enters from stripping tower 3 It is expelled directly out after series connection permeate discharge pipe 15.The other end of series connection permeate reuse pipe 18 and two grades of water inlet pipes 8 connect and It is connected between water intaking valve 10 and two grades of water pumps 11.When in this equipment, two disc tube reverse osmosis (dt-ro) film posts are used in series, series connection Permeate reuse valve 19 is opened, and permeate enters series connection permeate discharge pipe 15 tailing edge series connection permeate discharge pipe from stripping tower 3 15 enter two grades of disc tube reverse osmosis (dt-ro) film posts 2 carries out after-treatment.Series connection permeate reuse pipe 18 and water inlet manifold 6 all with one Acid conveying device connects.This acid conveying device be one respectively with connect permeate reuse pipe 18 and water inlet manifold 6 passes through The acid treatment tank 27 that pipeline connects, on the pipeline that this acid treatment tank 27 is connected with series connection permeate reuse pipe 18 and water inlet manifold 6 Acid dosing pump 28 is installed.
It is equiped with into water one way stop peturn valve between water intaking valve 10 and series connection permeate reuse pipe 18 on two grades of water inlet pipes 8 29, two grades of permeate discharge pipes 13 collect in permeate and is only equiped with two grades of permeate between valve 14 and permeate gathering tube 17 Return valve 30, series connection permeate discharge pipe 15 is equiped with between permeate reuse pipe 18 with connecting in series connection permeate dump valve 16 Series connection permeate check-valves 31, in series connection permeate reuse valve 19 and permeate discharge pipe of connecting on series connection permeate reuse pipe 18 Series connection permeate reuse check-valves 32 it is equiped with between 15.Prevent the liquid in corresponding pipeline from falling by arranging above-mentioned check-valves Stream.In this equipment, the concentrated solution outlet of one-level disc tube reverse osmosis (dt-ro) film post 1 and two grades of disc tube reverse osmosis (dt-ro) film posts 2 connects respectively Having primary concentration liquid discharge pipe 33 and secondary concentration liquid discharge pipe 34, this primary concentration liquid discharge pipe 33 and secondary concentration liquid are discharged Pipe 34 is connected, and primary concentration liquid discharge pipe 33 is equiped with concentrated solution check-valves 35.
Control system in this equipment includes controller 20, influent quality detector 21, one-level permeate detector 22, string Connection permeate detector 23 and permeate discharge detector 24.Wherein, influent quality detector 21 is installed on water inlet manifold 6, One-level permeate detector 22 is installed on one-level permeate discharge pipe 12, and series connection permeate detector 23 is installed on series connection and passes through On liquid discharge pipe 15, permeate is discharged detector 24 and is installed on the permeate exit of stripping tower 3.This influent quality detector 21, one-level permeate detector 22, series connection permeate detector 23 are discharged detector 24 with permeate and are all connected with controller 20 Connecing, influent quality detector 21, one-level permeate detector 22, series connection permeate detector 23 and permeate discharge detector 24 Respectively to the permeate ammonia-nitrogen content in electrical conductivity of intaking at water inlet manifold 6, one-level permeate discharge pipe 12, series connection permeate Permeate ammonia-nitrogen content and the permeate ammonia-nitrogen content of outflow stripping tower 3 in discharge pipe 15 detect, and generate corresponding Detection signal is also sent to controller 20 by detection signal.One-level water pump 9, water intaking valve 10, two grades of water pumps 11, permeate collect valve 14, series connection permeate dump valve 16 and series connection permeate reuse valve 19 are all connected with controller 20, controller 20 control one-level Water pump 9,10, two grades of water pumps 11 of water intaking valve, permeate collect valve 14, series connection permeate dump valve 16 and series connection permeate reuse valve 19 be turned on and off.Alkali dosing pump 26 and acid dosing pump 28 are all connected with controller 20, by controller 20 control its unlatching or Close.
By being attached by the pipeline in equipment, and arranging valve in relevant position, this equipment can realize according to diafiltration One-level disc tube reverse osmosis (dt-ro) film post 1 and two grades of disc tube reverse osmosis (dt-ro) film posts 2 are being connected and between parallel connection by liquid influent quality situation Switch over.When employing is connected in series, the permeate after one-level disc tube reverse osmosis (dt-ro) film post 1 processes enters stripping tower 3 and enters Row stripping, then enters back into two grades of disc tube reverse osmosis (dt-ro) film posts 2 and carries out after-treatment, and the water outlet of coagulation is not directly entered Two stage treatment, reduce the consumption of the energy, reduce the pressures compromises to two grades of disc tube reverse osmosis (dt-ro) film posts 2, extend two The service life of level disc tube reverse osmosis (dt-ro) film post 2;When employing is connected in parallel, the treating capacity of percolate can be improved.By controlling System is in the permeate ammonia-nitrogen content in water inlet electrical conductivity, one-level permeate discharge pipe 12, series connection permeate discharge pipe 15 The permeate ammonia-nitrogen content of permeate ammonia-nitrogen content and outflow stripping tower 3 detects, and is controlled respective valve by controller 20 Door and being turned on and off of pump, it is achieved that one-level disc tube reverse osmosis (dt-ro) film post 1 and two grades of disc tube reverse osmosis (dt-ro) film posts 2 in series connection and Freely switching between parallel connection, it is achieved that the automated job of equipment, improves the treatment effeciency of equipment, reduces hand labor Intensity and the operating cost of equipment.This equipment can ensure that permeate qualified discharge, and this equipment is applied widely, floor space Little, maintaining is easy.
The operation principle of this equipment is as follows: the influent quality detector 21 being located on water inlet manifold 6 is to entering water inlet manifold 6 The electrical conductivity of interior percolate carries out on-line checking, generates electrical conductivity detection signal and also this electrical conductivity detection signal is sent extremely control Device 20 processed.The processing procedure of this equipment is divided into following two pattern.
(1) paralleling model: when electrical conductivity of intaking is less than or equal to 10000 μ S/cm, controller 20 controls to open water intaking valve 10 and permeate collect valve 14, close series connection permeate dump valve 16 and series connection permeate reuse valve 19, by anti-for one-level dish tubular type Permeable membrane post 1 and two grades of disc tube reverse osmosis (dt-ro) film posts 2 are connected in parallel;Controller 20 controls to open acid dosing pump 28 to water inlet manifold Add acid solution in 6 and will intake (percolate) pH regulator to 6;Controller 20 controls to open one-level water pump 9 and two grades of water pumps 11 Percolate after regulation pH is each led at one-level disc tube reverse osmosis (dt-ro) film post 1 and two grades of disc tube reverse osmosis (dt-ro) film posts 2 Reason;The concentrated solution obtained after process is discharged after primary concentration liquid discharge pipe 33 and secondary concentration liquid discharge pipe 34 collect;Process After the permeate that obtains after one-level permeate discharge pipe 12 and two grades of permeate discharge pipes 13 collect, enter permeate gathering tube 17;Controller 20 controls to open alkali dosing pump 26 and adds alkali liquor in permeate gathering tube 17, will transmit through the pH regulator of liquid extremely 7.5, then will transmit through in liquid is passed through stripping tower 3 and carry out stripping and make the ammonia-nitrogen content in permeate be reduced to 25mg/m3Hereinafter, Then will transmit through liquid to discharge, complete the process to percolate.This pattern is primarily adapted for use in the newly-built soot firm operation phase, Rain dirt shunting engineering is the most perfect, and a large amount of rainwater are mixed in percolate so that the water quality of percolate is preferable, this Shi Caiyong series model can improve the treating capacity of percolate in the case of guarantee Chinese effluent is up to standard, improves percolate Treatment effeciency.Under paralleling model, this equipment adds 25%-40% to the treating capacity of percolate in the identical time, and cost Merely add 2%-5%.
(2) series model: when water inlet electrical conductivity is more than 10000 μ S/cm, controller 20 controls to cut out water intaking valve 10 with saturating Cross liquid and collect valve 14, open series connection permeate dump valve 16 and series connection permeate reuse valve 19, by one-level disc tube reverse osmosis (dt-ro) film Post 1 and two grades of disc tube reverse osmosis (dt-ro) film posts 2 are connected in series;Controller 20 controls to open acid dosing pump 28 and adds in water inlet manifold 6 Enter acid solution to regulate inlet flow-patterm to 6;Controller 20 controls to open one-level water pump 9, and by the water after regulation pH, to be passed through one-level dish tubular type anti- Permeable membrane post 1 processes;The concentrated solution obtained after process is discharged through primary concentration liquid discharge pipe 33;Obtain after process passes through Liquid enters permeate gathering tube 17 through one-level permeate discharge pipe 12, and controller 20 controls to open alkali dosing pump 26 and converges to permeate Add alkali liquor in house steward 17, will transmit through the pH regulator of liquid to 11, then will transmit through in liquid is passed through stripping tower 3 and carry out stripping, stripping After permeate flow into series connection permeate reuse pipe 18, controller 20 control open acid dosing pump 28 to series connection permeate reuse pipe Add acid solution in 18 and will transmit through liquid pH regulator to 7;It is adjusted the permeate after pH and is entered two grades by permeate reuse pipe 18 of connecting Disc tube reverse osmosis (dt-ro) film post 2 carries out after-treatment, and the concentrated solution obtained after after-treatment is by secondary concentration liquid discharge pipe 34 row Going out, the permeate obtained after after-treatment is discharged by permeate discharge pipe 15 of connecting, and completes the process to percolate.Should Pattern be primarily adapted for use in construction of dump area complete properly functioning after, along with rain dirt shunting complete and the increase of quantity of refuse, rubbish COD in rubbish percolate, ammonia nitrogen equal size are more and more higher, the situation that the water yield gradually decreases.Now use series model can ensure that to ooze Filtrate is by qualified discharge after processing.The permeate that when using this series model, one-level disc tube reverse osmosis (dt-ro) film post 1 produces passes through The buffering of stripping tower 3 enters back into two grades of disc tube reverse osmosis (dt-ro) film posts 2, solves existing landfill leachate treatment equipment and works as one-level The infringement that causes two grades of water pumps when disc tube reverse osmosis (dt-ro) film post produces water water shortage, reduces energy consumption, it is to avoid due to series connection Front terminal membrane (one-level disc tube reverse osmosis (dt-ro) film post 1) occurs that emergency is shut down and causes two grades of water pump idle running, to rear terminal membrane (two grades of dish Tubular type reverse osmosis membrane post 2) diaphragm situation about impacting.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, that is made any repaiies Change, equivalent, improvement etc., should be included within the scope of the present invention.

Claims (8)

1. for series connection and the disc tube reverse osmosis (dt-ro) equipment in parallel of landfill leachate treatment, including percolate inlet channel, One-level disc tube reverse osmosis (dt-ro) film post (1), two grades of disc tube reverse osmosis (dt-ro)s film post (2) and stripping tower (3), it is characterised in that:
Described percolate inlet channel includes water inlet manifold (6), one-level water inlet pipe (7) and two grades of water inlet pipes (8), described one grading One end of water pipe (7) is connected with water inlet manifold (6), and the other end is connected with one-level disc tube reverse osmosis (dt-ro) film post (1), described two grading One end of water pipe (8) is connected with water inlet manifold (6), and the other end and two grades of disc tube reverse osmosis (dt-ro)s film post (2) are connected, described one grading One-level water pump (9) is installed, by connecting one end of water inlet manifold (6) to connection two on described two grades of water inlet pipes (8) on water pipe (7) One end of level disc tube reverse osmosis (dt-ro) film post (2) is sequentially installed with water intaking valve (10) and two grades of water pumps (11);
The permeate outlet of described one-level disc tube reverse osmosis (dt-ro) film post (1) and the permeate of two grades of disc tube reverse osmosis (dt-ro)s film post (2) Outlet is connected to one-level permeate discharge pipe (12) and two grades of permeate discharge pipes (13), described two grades of permeate discharge pipes (13) permeate is installed on and collects valve (14), two grades of permeate discharge pipes (13) collect valve (14) and two in described permeate Connecting between the permeate outlet of level disc tube reverse osmosis (dt-ro) film post (2) and have series connection permeate discharge pipe (15), described series connection passes through Series connection permeate dump valve (16), described one-level permeate discharge pipe (12) and two grades of permeate are installed on liquid discharge pipe (15) Discharge pipe (13) is connected and jointly connects a permeate gathering tube (17), and described permeate gathering tube (17) is connected to stripping tower (3), permeate gathering tube (17) is upper connects an alkali liquor conveyer device;
The permeate outlet of described stripping tower (3) connects series connection permeate reuse pipe (18), described series connection permeate reuse pipe (18) the other end and two grades of water inlet pipes (8) connect and are connected between water intaking valve (10) and two grades of water pumps (11), and series connection is thoroughly Cross liquid reuse pipe (18) and permeate discharge pipe (15) connection of connecting, series connection permeate reuse pipe (18) is provided with series connection and passes through Liquid reuse valve (19), series connection permeate reuse pipe (18) and water inlet manifold (6) are all connected with an acid conveying device.
2., according to the series connection for landfill leachate treatment described in right 1 and disc tube reverse osmosis (dt-ro) equipment in parallel, its feature exists In: described series connection and disc tube reverse osmosis (dt-ro) equipment in parallel also include a control system, described control system include controller (20), Influent quality detector (21), one-level permeate detector (22), series connection permeate detector (23) and permeate discharge detection Device (24), described influent quality detector (21) is installed on described water inlet manifold (6), described one-level permeate detector (22) Being installed on described one-level permeate discharge pipe (12), described series connection permeate detector (23) is installed on described series connection permeate On discharge pipe (15), described permeate is discharged detector (24) and is installed on the permeate exit of described stripping tower (3), described in enter Water Water quality detector (21), one-level permeate detector (22), series connection permeate detector (23) and permeate discharge detector (24) being all connected with controller (20), described one-level water pump (9), water intaking valve (10), two grades of water pumps (11), permeate collect valve (14), series connection permeate dump valve (16) and series connection permeate reuse valve (19) are all connected, by controller with controller (20) (20) control one-level water pump (9), water intaking valve (10), two grades of water pumps (11), permeate collect valve (14), series connection permeate dump valve And series connection being turned on and off of permeate reuse valve (19) (16).
Series connection for landfill leachate treatment the most according to claim 2 and disc tube reverse osmosis (dt-ro) equipment in parallel, it is special Levy and be: described alkali liquor conveyer device includes the alkali pharmacy jar (25) being connected by pipeline with permeate gathering tube (17), described On the pipeline that alkali pharmacy jar (25) is connected with permeate gathering tube (17), alkali dosing pump (26), described acid conveying device are installed Including the acid treatment tank (27) being connected by pipeline with described series connection permeate reuse pipe (18) and water inlet manifold (6), described acid On the pipeline that pharmacy jar (27) is connected with series connection permeate reuse pipe (18) and water inlet manifold (6), acid dosing pump (28) is installed, Described alkali dosing pump (26) and acid dosing pump (28) are all connected with controller (20), controller (20) control alkali dosing pump (26) With being turned on and off of acid dosing pump (28).
4. according to the series connection for landfill leachate treatment according to any one of claim 1-3 and disc tube reverse osmosis (dt-ro) in parallel Equipment, it is characterised in that: install between water intaking valve (10) and series connection permeate reuse pipe (18) on described two grades of water inlet pipes (8) Have into water one way stop peturn valve (29), described two grades of permeate discharge pipes (13) collect valve (14) and permeate collects in permeate It is equiped with two grades of permeate check-valves (30), in series connection permeate row on described series connection permeate discharge pipe (15) between pipe (17) Going out and be equiped with series connection permeate check-valves (31) between valve (16) and series connection permeate reuse pipe (18), described series connection permeate returns Return with being equiped with series connection permeate on pipe (18) between series connection permeate reuse valve (19) and series connection permeate discharge pipe (15) With check-valves (32).
5. according to the series connection for landfill leachate treatment according to any one of claim 1-3 and disc tube reverse osmosis (dt-ro) in parallel Equipment, it is characterised in that: the concentrated solution outlet of described one-level disc tube reverse osmosis (dt-ro) film post (1) and two grades of disc tube reverse osmosis (dt-ro) film posts (2) concentrated solution outlet is connected to primary concentration liquid discharge pipe (33) and secondary concentration liquid discharge pipe (34), described one-level Concentrated solution discharge pipe (33) is connected with secondary concentration liquid discharge pipe (34), and primary concentration liquid discharge pipe (33) is equiped with concentration Liquid check-valves (35).
6. the series connection for landfill leachate treatment as described in claim 4 or 5 and disc tube reverse osmosis (dt-ro) equipment in parallel Application process, comprise the following steps:
S1, the influent quality detector (21) being located on water inlet manifold (6) carry out on-line checking to water inlet electrical conductivity, generate water inlet Described water inlet electrical conductivity detection signal is also sent to controller (20) by electrical conductivity detection signal;
S2, controller (20) control water intaking valve (10) according to the water inlet electrical conductivity detection signal received, permeate collects valve (14), series connection permeate dump valve (16) and being turned on and off one-level disc tube reverse osmosis (dt-ro) of permeate reuse valve (19) of connecting Film post (1) and two grades of disc tube reverse osmosis (dt-ro)s film post (2) switch between series connection and two kinds of connected modes in parallel, to be passed through into Percolate in supply mains (6) processes.
Application process the most according to claim 6, it is characterised in that in described step S2, controller (20) is according to reception To water inlet electrical conductivity detection signal control water intaking valve (10), permeate collect valve (14), series connection permeate dump valve (16) and Being turned on and off one-level disc tube reverse osmosis (dt-ro) film post (1) and two grades of disc tube reverse osmosis (dt-ro) films of series connection permeate reuse valve (19) Post (2) switches between series connection and two kinds of connected modes in parallel and specifically refers to:
When electrical conductivity of intaking is less than or equal to 10000 μ S/cm, controller (20) controls to open water intaking valve (10) and permeate converges Main valve (14), cuts out series connection permeate dump valve (16) and series connection permeate reuse valve (19), by described one-level dish tubular type reverse osmosis Permeable membrane post (1) and two grades of disc tube reverse osmosis (dt-ro)s film post (2) are connected in parallel;
When electrical conductivity of intaking is more than 10000 μ S/cm, controller (20) controls to cut out water intaking valve (10) and permeate collects valve (14), series connection permeate dump valve (16) and series connection permeate reuse valve (19) are opened, by described one-level disc tube reverse osmosis (dt-ro) film Post (1) and two grades of disc tube reverse osmosis (dt-ro)s film post (2) are connected in series.
Application process the most according to claim 7, it is characterised in that in described step S2, to being passed through in water inlet manifold (6) The percolate detailed process that carries out processing be:
When described one-level disc tube reverse osmosis (dt-ro) film post (1) and two grades of disc tube reverse osmosis (dt-ro)s film post (2) are connected in parallel, controller (20) control to open acid dosing pump (28) and in water inlet manifold (6), add acid solution by inlet flow-patterm regulation to 5.5-6.5;Then control Device (20) controls to open one-level water pump (9) and percolate is each led into one-level disc tube reverse osmosis (dt-ro) film post by two grades of water pumps (11) (1) and two grades of disc tube reverse osmosis (dt-ro)s film post (2) process;The concentrated solution obtained after process is respectively through primary concentration liquid discharge pipe (33) discharge with secondary concentration liquid discharge pipe (34);The permeate obtained after process respectively through one-level permeate discharge pipe (12) and Two grades of permeate discharge pipes (13) enter permeate gathering tube (17) after discharging;Controller (20) controls to open alkali dosing pump (26) In permeate gathering tube (17), add alkali liquor will transmit through the pH regulator of liquid to 7-8, then will transmit through liquid and be passed through in stripping tower (3) Carrying out stripping makes the ammonia-nitrogen content in permeate be reduced to 25mg/m3Hereinafter, then will transmit through liquid discharge;
When described one-level disc tube reverse osmosis (dt-ro) film post (1) and two grades of disc tube reverse osmosis (dt-ro)s film post (2) are connected in series, controller (20) control to open acid dosing pump (28) and in water inlet manifold (6), add acid solution by inlet flow-patterm regulation to 5.5-6.5;Then control Percolate is passed through one-level disc tube reverse osmosis (dt-ro) film post (1) and processes by device (20) control unlatching one-level water pump (9);After process The concentrated solution arrived is discharged through primary concentration liquid discharge pipe (33);The permeate obtained after process is through one-level permeate discharge pipe (12) Entering permeate gathering tube (17) after discharge, controller (20) controls to open alkali dosing pump (26) in permeate gathering tube (17) Add alkali liquor, will transmit through the pH regulator of liquid to 10.5-11.5, then will transmit through in liquid is passed through stripping tower (3) and carry out stripping, stripping After permeate flow into series connection permeate reuse pipe (18), controller (20) control open acid dosing pump (28) to series connection permeate Add acid solution in reuse pipe (18) and will transmit through liquid pH regulator to 6.5-7.0;It is adjusted the permeate after pH to be returned by permeate of connecting Entering two grades of disc tube reverse osmosis (dt-ro)s film post (2) with pipe (18) and carry out after-treatment, the concentrated solution obtained after after-treatment is by two Level concentrated solution discharge pipe (34) is discharged, and the permeate obtained after after-treatment is discharged by permeate discharge pipe (15) of connecting.
CN201610676432.3A 2016-08-16 2016-08-16 Series and parallel disc tube type reverse osmosis equipment for landfill leachate treatment and application method thereof Active CN106115976B (en)

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CN114656116A (en) * 2022-04-25 2022-06-24 倍杰特集团股份有限公司 Alcohol ester wastewater recycling device and method
CN121342233A (en) * 2025-12-16 2026-01-16 广州大学 A low-carbon multistage membrane distillation bioreactor for treating landfill leachate

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CN204752404U (en) * 2015-06-02 2015-11-11 武汉沃特尔环保工程建设有限公司 Portable landfill leachate processing apparatus
CN105731695A (en) * 2016-04-08 2016-07-06 珠海格力智能装备有限公司 Ultrapure water preparation system and automobile-used urea solution preparation system
CN205953716U (en) * 2016-08-16 2017-02-15 长沙威保特环保科技股份有限公司 A series and parallel connections dish tube type reverse osmosis equipment for landfill leachate handles

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CN202785843U (en) * 2012-09-19 2013-03-13 郑州蓝德环保科技有限公司 High-concentration landfill leachate nanofiltration integrated treatment system
CN204752404U (en) * 2015-06-02 2015-11-11 武汉沃特尔环保工程建设有限公司 Portable landfill leachate processing apparatus
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CN106745386A (en) * 2016-12-26 2017-05-31 成都美富特膜科技有限公司 The processing method and processing equipment of high metal ion content waste water
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