CN110156275A - A kind of environmentally friendly recirculated water by-pass flow biological treatment system and method - Google Patents
A kind of environmentally friendly recirculated water by-pass flow biological treatment system and method Download PDFInfo
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- CN110156275A CN110156275A CN201910511948.6A CN201910511948A CN110156275A CN 110156275 A CN110156275 A CN 110156275A CN 201910511948 A CN201910511948 A CN 201910511948A CN 110156275 A CN110156275 A CN 110156275A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- 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
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5263—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/02—Non-contaminated water, e.g. for industrial water supply
- C02F2103/023—Water in cooling circuits
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- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/08—Chemical Oxygen Demand [COD]; Biological Oxygen Demand [BOD]
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/11—Turbidity
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/08—Corrosion inhibition
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/06—Nutrients for stimulating the growth of microorganisms
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
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Abstract
The invention discloses a kind of environmentally friendly recirculated water by-pass flow biological treatment system and methods, carry out waterpipe including recirculated water, circulating cooling make-up water high-efficiency fiber filter, recirculated water supplements pipeline, circulating water cooling tower, filter backwash waterpipe, centrifugal sludge concentrator, circulating-water bypass, which flows through, filters out water lines, biological film filter, haydites of book structure filter, filter outlet pipe road, carbon source supplements case, biology supplement case, recirculated water bypath filter water return pipeline, biofiltration water return pipeline, haydites of book structure filter backwash water lines, concentration basin supernatant water return pipeline, Circulating water effluent pipeline, the system and method can be realized the scale inhibition of electric power plant circulating water, anti-corrosion and sterilization, guarantee the safe and stable operation of circulation, and secondary pollution will not be caused to environment.
Description
Technical field
The invention belongs to energy conservation and environmental protection, it is related to a kind of environmentally friendly recirculated water by-pass flow biological treatment system and side
Method.
Background technique
In recent years, country enhanced Industrial Water Saving and draining control dynamics, and the prevention and treatment of water pollution was also once becoming limitation work
The matter of utmost importance of industry development forces people further to explore water treatment technology that is water-saving and reducing disposal of pollutants.Wherein, power plant uses
20% or so of the total industrial water consumption of water Zhan, recirculating cooling water system need to consume 60% to 80% water.It so, be from
Fundamentally realize the zero-emission of power plant effluent, the water treatment work emphasis of power plant should be placed on the chemical treatment of recirculated cooling water.It follows
Ring cooling water can cause corrosion and scaling, biological sludge in industrial harm to equipment in the process of running.In the process of running, circulation is improved
Water concentration rate can efficiently reduce power plant's displacement, have good facilitation effect to the realization of water-saving and emission-reducing, guaranteeing
While water resource is saved, huge economic and social profit is brought.However, excessively high enrichment factor can aggravate fouling and corruption
Phenomenon is lost, this also proposes tightened up requirement to technology on circulating cooling water treatment.
Currently, electric power plant circulating water water quality controlling method generallys use chemical method and physical method two major classes.Wherein, chemical
Method includes plus water stabilizer, acid adding add antisludging agent, weak acid resin exchange process etc.；Physical method includes magnetized water treatment, Electrostatic water treatment
Deng.Traditional chemical method solves fouling, the micro- life of burn by a certain amount of chemical agent is added into recirculated cooling water
The problems such as object is multiplied, effect seems obviously, but its investment is larger, operating cost is high, management difficulty is big, it is easy that equipment is made
At corrosion, the chemical component in water is changed simultaneously and has been easy to cause secondary pollution to environment.Though electromagnetism mitigation and antiscaling technology has nontoxic
Advantage pollution-free, easy to operate, but there is still a need for further researchs in terms of its mechanism and scale inhibition effect.
Summary of the invention
It is an object of the invention to overcome the above-mentioned prior art, a kind of environmentally friendly recirculated water by-pass flow is provided
Biological treatment system and method, the system and method can be realized scale inhibition, anti-corrosion and the sterilization of electric power plant circulating water, guarantee recirculated water
The safe and stable operation of system, and secondary pollution will not be caused to environment.
In order to achieve the above objectives, environmentally friendly recirculated water by-pass flow biological treatment system of the present invention includes recirculated water
Come waterpipe, circulating cooling make-up water high-efficiency fiber filter, recirculated water supplement pipeline, circulating water cooling tower, filter backwash water pipe
Road, centrifugal sludge concentrator, circulating-water bypass, which flow through, filters out water lines, biological film filter, haydites of book structure filter, filter
Outlet conduit, carbon source supplement case, biology supplement case, recirculated water bypath filter water return pipeline, biofiltration water return pipeline, shale pottery
Grain filter backwash water lines, concentration basin supernatant water return pipeline, Circulating water effluent pipeline；
Recirculated water carrys out waterpipe and is connected with the entrance of circulating cooling make-up water high-efficiency fiber filter, and circulating cooling make-up water is efficiently fine
The production mouth of a river of dimensional filter device supplements pipeline by recirculated water and is connected with the tower basin of circulating water tower bottom, and circulating cooling make-up water is high
The backwash water out of effect fabric filter is connected by filter backwash waterpipe with centrifugal sludge concentrator；
The outlet of circulating water cooling tower bottom tower basin flowed through through circulating-water bypass filter out water lines and biological film filter into
The mouth of a river is connected, and the water outlet of biological film filter is connected with the water inlet of haydites of book structure filter, haydites of book structure filter
Water outlet be connected through filter outlet conduit and recirculated water bypath filter water return pipeline with the tower basin of circulating water tower bottom
It is logical；
Biofiltration water return pipeline is flowed through with recirculated water bypath filter water return pipeline and circulating-water bypass respectively filters out water lines
Be connected, the water inlet of haydites of book structure filter backwash water lines and centrifugal sludge concentrator and haydites of book structure filter it is anti-
Washing water outlet is connected, the concentrated pond supernatant water return pipeline of the supernatant outlet of centrifugal sludge concentrator and recirculated water water
Pipeline is connected；The discharge outlet of circulating water cooling tower bottom tower basin is connected with Circulating water effluent pipeline；
The outlet that fungicide adds case is connected through fungicide dosing pump with the tower basin of circulating water tower bottom；
The outlet of carbon source supplement case is connected through carbon source make-up pump with the carbon source entrance of biological film filter, biology supplement case
Outlet be connected through the biology supplement interface of biological make-up pump and biological film filter.
Circulating-water bypass, which flows through to filter out, is provided with bypath filter flow pump in water lines.
Monitoring turbidimeter, online COD detector and circulating-water bypass is provided on recirculated water bypath filter water return pipeline to flow through
Filter back-water valve (BWV).
Biofiltration water return pipeline is equipped with biofiltration back-water valve (BWV).
Online conductance table and Circulating water effluent valve are provided on Circulating water effluent pipeline.
The sludge outlet of centrifugal sludge concentrator is communicated with the outer discharge pipe of dehydrated sludge.
Environmentally friendly recirculated water by-pass flow bioremediation of the present invention the following steps are included:
1) raw water removes the suspended matter in water removal through circulating cooling make-up water high-efficiency fiber filter come waterpipe by recirculated water, so that
The turbidity of circulating cooling make-up water high-efficiency fiber filter water outlet is controlled in 12NTU hereinafter, circulating cooling make-up water high-efficiency fiber filter is defeated
Recirculated water out enters in circulating water cooling tower as cooling tower moisturizing；
2) start fungicide dosing pump, fungicide is added into the compound disinfectant automatic feeding in case to circulating water cooling tower
In, sterilization processing is carried out to the recirculated water in circulating water cooling tower by compound disinfectant, eliminates the indigenous flora in recirculated water,
Promote the dominant growth of subsequent bio medicament；
3) recirculated water in circulating water cooling tower is flowed through by circulating-water bypass filters out water lines, in bypath filter flow pump
Effect is lower to be entered in biological film filter, is added the biological agent in biology supplement case to biomembrane mistake using biological make-up pump
In filter, while carbon source is supplemented into biological film filter by the carbon source automatic feeding in case by carbon source make-up pump, so that raw
Object medicament carries out growth and breeding in the case where recycling water environment, so that the surface of filtrate forms biomembrane in biological film filter,
After biofilm formation, the substance generated in biological agent with flocculation ability flora is given full play to, by the colloid in recirculated water
With suspended matter little particle aggregate and precipitate, to reduce the turbidity and suspended matter of recirculated water, in addition, by the control to recirculated water pH,
With corrosion calcium carbonate, play the role of scale inhibition；Flora in biological agent passes through the organic matter in breeding consumption recirculated water, dissolution
Oxygen and nitrogen phosphorus, so that the COD content of recirculated water meets system service requirement；
4) recirculated water of biological film filter output enters in haydites of book structure filter, utilizes the porous suction of haydites of book structure
Attached property is filtered processing to recirculated water, with the sludge for capturing the microbial sludge to fall off and generating through flocculation；
5) recirculated water of haydites of book structure filter output enters recirculated water bypath filter return water through filter outlet conduit
In pipeline, product are carried out to the recirculated water in recirculated water bypath filter water return pipeline by online COD detector and monitoring turbidimeter
Quality supervision is surveyed, and when the COD of recirculated water and turbidity index cannot be met the requirements, then underproof recirculated water is passed through biofiltration and returned
Water lines return in biological film filter, re-start processing, until recirculated water COD and turbidity index meet the requirements for
Only；When the water quality qualification of recirculated water in recirculated water bypath filter water return pipeline, then the qualified recirculated water of processing is passed through into circulation
Water bypath filter water return pipeline is back in circulating water cooling tower.
The invention has the following advantages:
Environmentally friendly recirculated water by-pass flow biological treatment system of the present invention and method are when specific operation, by killing
The compound disinfectant that microbial inoculum adds case output carries out sterilization processing to the recirculated water in circulating water cooling tower, eliminates in recirculated water
The recirculated water of indigenous flora, circulating water cooling tower output enters in biological film filter, while carbon source is added into recirculated water
And biological agent, so that the biological flora in biological agent carries out growth and breeding in the case where recycling water environment, so that biomembrane
The surface of filtrate forms biomembrane in filter, and after biofilm formation, giving full play to has flocculation ability bacterium in biological agent
The substance that group generates, by the colloid and suspended matter little particle aggregate and precipitate in recirculated water, to reduce turbidity and the suspension of recirculated water
Object, the flora in biological agent is by organic matter, dissolved oxygen and the nitrogen phosphorus in breeding consumption recirculated water, so that the COD of recirculated water
Content meets system service requirement, and to realize scale inhibition, anti-corrosion and the sterilization purpose of recirculated water, structure is simple, easy to operate, can
The safe and stable operation for effectively guaranteeing circulation, and will not cause secondary pollution to environment, have it is biggish it is economical with
Social benefit.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Wherein, 1 be recirculated water come waterpipe, 2 be circulating cooling make-up water high-efficiency fiber filter, 3 be recirculated water supplement pipeline,
4 it is filter backwash waterpipe, 5 be centrifugal sludge concentrator, 6 be circulating water cooling tower, 7 is that circulating-water bypass flows through and filters out water
Pipeline, 8 be bypath filter flow pump, 9 be biological film filter, 10 be haydites of book structure filter, 11 be filter outlet pipe road,
12 it is recirculated water bypath filter water return pipeline, 13 be monitoring turbidimeter, 14 be online COD detector, 15 is that circulating-water bypass flows through
Filter back-water valve (BWV), 16 be biofiltration water return pipeline, 17 be biofiltration back-water valve (BWV), 18 be haydites of book structure filter backwash water pipe
Road, 19 be concentration basin supernatant water return pipeline, 20 be the outer discharge pipe of dehydrated sludge, 21 be carbon source supplement case, 22 be that carbon source is mended
Fill pump, 23 be biology supplement case, 24 be biological make-up pump, 25 be fungicide add case, 26 be fungicide dosing pump, 27 be circulation
Water blow-off line, 28 be Circulating water effluent valve, 29 be online conductance table.
Specific embodiment
The invention will be described in further detail with reference to the accompanying drawing:
With reference to Fig. 1, environmentally friendly recirculated water by-pass flow biological treatment system of the present invention includes that recirculated water carrys out water pipe
Road 1, circulating cooling make-up water high-efficiency fiber filter 2, recirculated water supplement pipeline 3, circulating water cooling tower 6, filter backwash waterpipe
4, centrifugal sludge concentrator 5, circulating-water bypass, which flow through, filters out water lines 7, biological film filter 9, haydites of book structure filter 10, mistake
Filter outlet conduit 11, carbon source supplement case 21, biology supplement case 23, recirculated water bypath filter water return pipeline 12, biofiltration are returned
Water lines 16, haydites of book structure filter backwash water lines 18, concentration basin supernatant water return pipeline 19, Circulating water effluent pipeline 27；
Recirculated water carrys out waterpipe 1 and is connected with the entrance of circulating cooling make-up water high-efficiency fiber filter 2, the filtering of circulating cooling make-up water high-efficiency fiber
The production mouth of a river of device 2 supplements pipeline 3 by recirculated water and is connected with the tower basin of 6 bottom of circulating water cooling tower, and circulating cooling make-up water is efficient
The backwash water out of fabric filter 2 is connected by filter backwash waterpipe 4 with centrifugal sludge concentrator 5；Recirculated water cooling
But the outlet of 6 bottom tower basin of tower is flowed through through circulating-water bypass filters out water lines 7 and is connected with the water inlet of biological film filter 9, raw
The water outlet of object membrane filter 9 is connected with the water inlet of haydites of book structure filter 10, the water outlet of haydites of book structure filter 10
It is connected through filter outlet conduit 11 and recirculated water bypath filter water return pipeline 12 with the tower basin of 6 bottom of circulating water cooling tower；
Biofiltration water return pipeline 16 is flowed through with recirculated water bypath filter water return pipeline 12 and circulating-water bypass respectively to be filtered out water lines 7 and is connected
It is logical, the water inlet and haydites of book structure filter 10 of haydites of book structure filter backwash water lines 18 and centrifugal sludge concentrator 5
Backwash water out is connected, the concentrated pond supernatant water return pipeline 19 of the supernatant outlet of centrifugal sludge concentrator 5 and circulation
Water carrys out waterpipe 1 and is connected；The discharge outlet of 6 bottom tower basin of circulating water cooling tower is connected with Circulating water effluent pipeline 27；Sterilization
The outlet that agent adds case 25 is connected through fungicide dosing pump 26 with the tower basin of 6 bottom of circulating water cooling tower；Carbon source supplements case 21
Outlet be connected through carbon source make-up pump 22 with the carbon source entrance of biological film filter 9, biology supplement case 23 outlet through biology
Make-up pump 24 is connected with the biology supplement interface of biological film filter 9.
Circulating-water bypass, which flows through to filter out, is provided with bypath filter flow pump 8 in water lines 7；Recirculated water bypath filter water return pipeline
Monitoring turbidimeter 13, online COD detector 14 and recirculated water bypath filter back-water valve (BWV) 15 are provided on 12；Biofiltration return pipe
Road 16 is equipped with biofiltration back-water valve (BWV) 17；Online conductance table 29 and Circulating water effluent valve are provided on Circulating water effluent pipeline 27
28；The sludge outlet of centrifugal sludge concentrator 5 is communicated with the outer discharge pipe 20 of dehydrated sludge.
Environmentally friendly recirculated water by-pass flow bioremediation of the present invention the following steps are included:
1) raw water removes the suspended matter in water removal through circulating cooling make-up water high-efficiency fiber filter 2 come waterpipe 1 by recirculated water, makes
The turbidity that circulating cooling make-up water high-efficiency fiber filter 2 is discharged is obtained to control in 12NTU hereinafter, circulating cooling make-up water high-efficiency fiber filter
The recirculated water of 2 outputs enters in circulating water cooling tower 6 as cooling tower moisturizing, and circulating cooling make-up water high-efficiency fiber filter 2 exists
The backwash water generated in filter process carries out separation of solid and liquid disposition using centrifugal sludge concentrator 5；
2) start fungicide dosing pump 26, fungicide is added into the compound disinfectant automatic feeding in case 25 to recirculated water cooling
But in tower 6, sterilization processing is carried out to the recirculated water in circulating water cooling tower 6 by compound disinfectant, eliminates the soil in recirculated water
Write flora, promote the dominant growth of subsequent bio medicament, after adding the processing of biological water stabilizer, stop oxidizing bactericide and
Corrosion inhibiting and descaling agent adds；
3) recirculated water in circulating water cooling tower 6 is flowed through by circulating-water bypass filters out water lines 7, in bypath filter flow pump
Under the action of 8 enter biological film filter 9 in, using biological make-up pump 24 by biology supplement case 23 in biological agent add to
In biological film filter 9, while carbon source is supplemented to biomembrane mistake by the carbon source automatic feeding in case 21 by carbon source make-up pump 22
In filter 9, so that biological agent carries out growth and breeding in the case where recycling water environment, so that filtrate in biological film filter 9
Surface forms biomembrane, after biofilm formation, gives full play to the substance generated in biological agent with flocculation ability flora, will
Colloid and suspended matter little particle aggregate and precipitate in recirculated water, to reduce the turbidity and suspended matter of recirculated water, in addition, by following
The control of ring water pH plays the role of scale inhibition with corrosion calcium carbonate；Flora in biological agent passes through in breeding consumption recirculated water
The nutrient sources such as organic matter, dissolved oxygen and nitrogen phosphorus so that the COD content of recirculated water meets system service requirement；
4) recirculated water that biological film filter 9 exports enters in haydites of book structure filter 10, utilizes the more of haydites of book structure
Hole adsorptivity is filtered processing to recirculated water, with the sludge for capturing the microbial sludge to fall off and generating through flocculation；
5) recirculated water that haydites of book structure filter 10 exports enters recirculated water bypath filter through filter outlet conduit 11
In water return pipeline 12, by online COD detector 14 and monitoring turbidimeter 13 in recirculated water bypath filter water return pipeline 12
Recirculated water carries out quality monitoring, when the COD of recirculated water and turbidity index cannot be met the requirements, closes recirculated water bypath filter and returns
Underproof recirculated water is returned in biological film filter 9 by biofiltration water return pipeline 16, re-starts place by water valve 15
Reason, until the COD and turbidity index of recirculated water are met the requirements；When recirculated water in recirculated water bypath filter water return pipeline 12
When water quality qualification, then biofiltration back-water valve (BWV) 17 is closed, open recirculated water bypath filter back-water valve (BWV) 15, by the qualified circulation of processing
Water is back in circulating water cooling tower 6 by recirculated water bypath filter water return pipeline 12；The backwash water of haydites of book structure filter 10
And the backwash water of circulating cooling make-up water high-efficiency fiber filter 2 enters in centrifugal sludge concentrator 5 and carries out mud-water separation,
In, the supernatant separated is sent into recirculated water by concentration basin supernatant water return pipeline 19 to be used as recirculated water in waterpipe 1
Water recycling is supplemented, the sludge separated is discharged through discharge pipe 20 outside dehydrated sludge.
Claims (7)
1. a kind of environmentally friendly recirculated water by-pass flow biological treatment system, which is characterized in that including recirculated water come waterpipe (1),
Circulating cooling make-up water high-efficiency fiber filter (2), recirculated water supplement pipeline (3), circulating water cooling tower (6), filter backwash water pipe
Road (4), centrifugal sludge concentrator (5), circulating-water bypass, which flow through, filters out water lines (7), biological film filter (9), haydites of book structure
Filter (10), filter outlet pipe road (11), carbon source supplement case (21), biology supplement case (23), recirculated water bypath filter return
Water lines (12), biofiltration water return pipeline (16), haydites of book structure filter backwash water lines (18), concentration basin supernatant return water
Pipeline (19) and Circulating water effluent pipeline (27)；
Recirculated water carrys out waterpipe (1) and is connected with the entrance of circulating cooling make-up water high-efficiency fiber filter (2), and circulating cooling make-up water is efficient
The production mouth of a river of fabric filter (2) is connected by recirculated water supplement pipeline (3) with the tower basin of circulating water cooling tower (6) bottom,
The backwash water out of circulating cooling make-up water high-efficiency fiber filter (2) is by filter backwash waterpipe (4) and centrifugal sludge condensation
Device (5) is connected；
The outlet of circulating water cooling tower (6) bottom tower basin is flowed through through circulating-water bypass filters out water lines (7) and biological film filter (9)
Water inlet be connected, the water outlet of biological film filter (9) is connected with the water inlet of haydites of book structure filter (10), shale
The water outlet of ceramic filtration device (10) is through filter outlet conduit (11) and recirculated water bypath filter water return pipeline (12) and circulation
The tower basin of water cooling tower (6) bottom is connected；
Biofiltration water return pipeline (16) flows through with recirculated water bypath filter water return pipeline (12) and circulating-water bypass respectively and filters out water
Pipeline (7) is connected, the water inlet and shale of haydites of book structure filter backwash water lines (18) and centrifugal sludge concentrator (5)
The backwash water out of ceramic filtration device (10) is connected, the concentrated pond supernatant of supernatant outlet of centrifugal sludge concentrator (5)
Liquid water return pipeline (19) carrys out waterpipe (1) with recirculated water and is connected；The discharge outlet and circulation of circulating water cooling tower (6) bottom tower basin
Water blow-off line (27) is connected；
The outlet that fungicide adds case (25) is connected through fungicide dosing pump (26) with the tower basin of circulating water cooling tower (6) bottom
It is logical；
The outlet of carbon source supplement case (21) is connected through carbon source make-up pump (22) with the carbon source entrance of biological film filter (9), raw
The outlet of object supplement case (23) is connected through biological make-up pump (24) with the biology supplement interface of biological film filter (9).
2. environmentally friendly recirculated water by-pass flow biological treatment system according to claim 1, which is characterized in that circulating-water bypass
It flows through to filter out and is provided with bypath filter flow pump (8) on water lines (7).
3. environmentally friendly recirculated water by-pass flow biological treatment system according to claim 1, which is characterized in that circulating-water bypass
It flows through and is provided with monitoring turbidimeter (13), online COD detector (14) and recirculated water bypath filter time in filter water return pipeline (12)
Water valve (15).
4. environmentally friendly recirculated water by-pass flow biological treatment system according to claim 1, which is characterized in that biofiltration
Water return pipeline (16) is equipped with biofiltration back-water valve (BWV) (17).
5. environmentally friendly recirculated water by-pass flow biological treatment system according to claim 1, which is characterized in that recirculated water row
Online conductance table (29) and Circulating water effluent valve (28) are provided on dirty pipeline (27).
6. environmentally friendly recirculated water by-pass flow biological treatment system according to claim 1, which is characterized in that centrifugal dirt
The sludge outlet of mud inspissator (5) is communicated with the outer discharge pipe (20) of dehydrated sludge.
7. a kind of environmentally friendly recirculated water by-pass flow bioremediation, which comprises the following steps:
1) raw water removes the suspended matter in water removal through circulating cooling make-up water high-efficiency fiber filter (2) come waterpipe (1) by recirculated water, makes
The turbidity for obtaining circulating cooling make-up water high-efficiency fiber filter (2) water outlet is controlled in 12NTU hereinafter, circulating cooling make-up water high-efficiency fiber filters
The recirculated water of device (2) output enters in circulating water cooling tower (6) as cooling tower moisturizing；
2) start fungicide dosing pump (26), fungicide is added into the compound disinfectant automatic feeding in case (25) to recirculated water cooling
But in tower (6), sterilization processing is carried out to the recirculated water in circulating water cooling tower (6) by compound disinfectant, is eliminated in recirculated water
Indigenous flora, promote subsequent bio medicament dominant growth；
3) recirculated water in circulating water cooling tower (6) is flowed through by circulating-water bypass filters out water lines (7), in bypath filter flow pump
(8) under the action of enter biological film filter (9) in, using biological make-up pump (24) by biology supplement case (23) in biological medicament
Agent is added into biological film filter (9), while by carbon source make-up pump (22) that the carbon source in carbon source supplement case (21) is automatic
It adds into biological film filter (9), so that biological agent carries out growth and breeding in the case where recycling water environment, so that biomembrane
The surface of filtrate forms biomembrane in filter (9), and after biofilm formation, giving full play to has flocculation ability in biological agent
The substance that flora generates, by the colloid and suspended matter little particle aggregate and precipitate in recirculated water, to reduce the turbidity of recirculated water and hang
Floating object, in addition, with corrosion calcium carbonate, playing the role of scale inhibition by the control to recirculated water pH；Flora in biological agent is logical
Organic matter, dissolved oxygen and the nitrogen phosphorus in breeding consumption recirculated water are crossed, so that the COD content of recirculated water meets system service requirement；
4) recirculated water of biological film filter (9) output enters in haydites of book structure filter (10), utilizes the more of haydites of book structure
Hole adsorptivity is filtered processing to recirculated water, with the sludge for capturing the microbial sludge to fall off and generating through flocculation；
5) recirculated water of haydites of book structure filter (10) output enters recirculated water bypath filter through filter outlet conduit (11)
In water return pipeline (12), by online COD detector (14) and monitoring turbidimeter (13) to recirculated water bypath filter water return pipeline
(12) recirculated water in carries out quality monitoring, then will be underproof when the COD of recirculated water and turbidity index cannot be met the requirements
Recirculated water is returned in biological film filter (9) by biofiltration water return pipeline (16), re-starts processing, until recirculated water
COD and until turbidity index meets the requirements；When the water quality qualification of recirculated water bypath filter water return pipeline (12) interior recirculated water,
Then the qualified recirculated water of processing is back in circulating water cooling tower (6) by recirculated water bypath filter water return pipeline (12).
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| WO2022078672A1 (en) * | 2020-10-16 | 2022-04-21 | Sms Group Gmbh | Method of treating a cooling circuit water contaminated with organic substances and inorganic particles |
| WO2022078673A1 (en) * | 2020-10-16 | 2022-04-21 | Sms Group Gmbh | Method for eliminating legionellae from water of a cooling circuit, which is loaded with organic substances and inorganic particles |
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