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CN110498561A - A kind of processing system and processing method of glass cover-plate abrasive waste water - Google Patents

A kind of processing system and processing method of glass cover-plate abrasive waste water Download PDF

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Publication number
CN110498561A
CN110498561A CN201910722267.4A CN201910722267A CN110498561A CN 110498561 A CN110498561 A CN 110498561A CN 201910722267 A CN201910722267 A CN 201910722267A CN 110498561 A CN110498561 A CN 110498561A
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China
Prior art keywords
water
waste water
glass cover
reuse
tank
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910722267.4A
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Chinese (zh)
Inventor
尹德元
鲁安宇
刘宜德
何捷
郭海平
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Jing Yi Hunan Hunan Platform Environmental Protection New And High Technology Development Corp Ltd
Shenzhen Yuepeng Environmental Protection Technology Co Ltd
Hunan Jingyi Xiangtai Environmental Protection High Tech Development Co Ltd
Original Assignee
Jing Yi Hunan Hunan Platform Environmental Protection New And High Technology Development Corp Ltd
Shenzhen Yuepeng Environmental Protection Technology Co Ltd
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Priority to CN201910722267.4A priority Critical patent/CN110498561A/en
Publication of CN110498561A publication Critical patent/CN110498561A/en
Pending legal-status Critical Current

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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
    • C02F1/44Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • 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
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • 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
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56Macromolecular compounds
    • 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
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F2001/007Processes including a sedimentation step
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/04Disinfection
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/30Aerobic and anaerobic processes

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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)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

The invention discloses a kind of processing systems of glass cover-plate abrasive waste water, including wastewater equalization pond, coagulating sedimentation system, activated Sludge System and the MBR system being sequentially communicated, the water outlet of the MBR system is communicated with the first reuse water collection system and/or the second reuse water collection system by connecting line;The first reuse water collection system includes decontamination system and the first recycle-water tank;The second reuse water collection system includes the ultrafiltration system being sequentially communicated, counter-infiltration system and the second recycle-water tank.The present invention also provides a kind of processing methods of glass cover-plate abrasive waste water.The processing system and processing method of glass cover-plate abrasive waste water of the invention have many advantages, such as that stable effluent quality, strong shock resistance, film service life are long.

Description

A kind of processing system and processing method of glass cover-plate abrasive waste water
Technical field
The invention belongs to field of waste water treatment more particularly to the processing systems and processing method of a kind of abrasive waste water.
Background technique
Glass cover processing industry, grinding precision is high, and Water usage is big.Under ten, water Policy Backgrounds, waste water is carried out Recycling processing technique is studied to reduce the discharge of waste water, and great lot of water resources is saved, and the pollution for mitigating environment is of great significance.
The prior art is mainly " materializing strategy+micro-filtration+UF+ to the processing of glass cover-plate abrasive waste water and Treated sewage reusing technique RO " technique, treatment process are poor to the Treated sewage reusing adaptability of glass cover-plate abrasive waste water, are easy to cause ultrafiltration membrane by small Grain milling and the blocking of PAM combination, and then reverse osmosis membrane is blocked, cause the intermediate water reuse system service life to greatly reduce, general film Service life only 1-2.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the shortcomings of to mention in background above technology and defect, one kind is provided The processing system and processing method of the long glass cover-plate abrasive waste water of stable effluent quality, strong shock resistance, film service life. In order to solve the above technical problems, technical solution proposed by the present invention are as follows:
A kind of processing system of glass cover-plate abrasive waste water, including be sequentially communicated wastewater equalization pond, coagulating sedimentation system, The water outlet of activated Sludge System and MBR system, the MBR system is communicated with the first reuse water collection system by connecting line And/or the second reuse water collection system;The first reuse water collection system includes decontamination system and the first recycle-water tank; The second reuse water collection system includes the ultrafiltration system being sequentially communicated, counter-infiltration system and the second recycle-water tank.
In above-mentioned processing system, it is preferred that the coagulating sedimentation system includes pH conditioning tank, the coagulating being sequentially communicated Pond is adjusted back in pond, flocculation tank, sedimentation basin and pH, and the coagulation reaction tank is equipped with PAC feed opening, on the flocculation tank Equipped with PAM feed opening.
In above-mentioned processing system, it is preferred that be additionally provided with anoxic pond between the coagulating sedimentation system and activated Sludge System.
In above-mentioned processing system, it is preferred that the sludge reflux of the MBR system discharge to the anoxic pond.
As a general technical idea, the present invention also provides a kind of processing methods of glass cover-plate abrasive waste water, including Following steps:
S1: it is pumped into coagulating sedimentation again after glass cover-plate abrasive waste water injection wastewater equalization pond to be adjusted to the water quality and quantity of waste water System after dosing coagulating sedimentation, collects supernatant;
S2: supernatant is passed through into anoxic pond, activated Sludge System and MBR system, collects the water outlet of MBR system;
S3: being delivered to the first reuse water collection system and/or the second reuse water collection system for the water outlet of MBR system, defeated When sending to the first reuse water collection system, the water outlet of MBR system flows into the first recycle-water tank after decontamination system;Conveying When to the second reuse water collection system, the water outlet of MBR system successively flows into the second reuse after ultrafiltration system, counter-infiltration system Water tank;When being delivered to the first reuse water collection system and the second reuse water collection system, the water outlet of MBR system is divided into two-way The first reuse water collection system and the second reuse water collection system are inputted, respectively reaches the first recycle-water tank after treatment With the second recycle-water tank.
In above-mentioned processing method, it is preferred that the glass cover-plate abrasive waste water adjusts the water of waste water by wastewater equalization pond After matter water, COD 200-300mg/L, SS 2000-5000mg/L, ammonia nitrogen 10-20mg/L, conductivity 600-800 μs/cm。
In above-mentioned processing method, it is preferred that the coagulating sedimentation system includes pH conditioning tank, the coagulating being sequentially communicated Pond, flocculation tank, sedimentation basin and pH adjust back pond, and reaction time of the waste water in pH conditioning tank is 10-30min, and is added The pH value for entering acid/base control waste water is 8-9;Reaction time of the waste water in coagulation reaction tank is 10-30min, and is added The PAC of 100-200mg/L is handled;Reaction time of the waste water in flocculation tank is 10-30min, and 0.5- is added The PAM of 2mg/L is handled;Sedimentation time of the waste water in sedimentation basin is not less than 2h, and surface loading is controlled in 0.8m3/(m2· H) below;Reaction time of the waste water in pH readjustment pond is 10-30min, and the pH value that acid control waste water is added is 6.8- 7.2。
In above-mentioned processing method, it is preferred that residence time 6-10h of the waste water in activated Sludge System, control are lived Property sludge system in DO content 3.0-3.5mg/L, activated sludge content be 3000mg/L;The waste water stops in MBR system Staying the time is 2h, and permeant flux is in 12-15L/ (m2·h)。
In above-mentioned processing method, it is preferred that when ultrafiltration system processing, water production control flux is 40-50L/ (m2· H), filter pressure 0.1MPa, backwash pressure 0.15MPa, membrane aperture is 0.02-0.03 μm, using external-compression type film;It is described anti- When osmosis system processing, water production control flux is 16-18L/ (m2H), using pollution-resistant brackish water desalination film, intake pressure For 1.2-1.5MPa.
Abrasive waste water variation water quality is larger, passes through the control of above-mentioned process conditions, it is ensured that stable effluent quality.
Processing system and processing method in the present invention are based on the principle that 1, abrasive waste water is through the uniform water quality of conditioning tank After water, it is pumped into coagulating sedimentation system, by way of dosing coagulating sedimentation, small suspended matter coacervating large particle is made to suspend Object removes most suspended matters in water and a small amount of COD.Small grind uses dosing coagulating sedimentation in abrasive waste water Clearly, but SS higher in waste water, PAC, the PAM added is also relatively more for removal effect, and water outlet has certain PAC, PAM Residual, while the partial size that is milled is very small, has from nanoscale to micron order, be discharged after pretreatment still have a small amount of milling and PAC,PAM.2, the supernatant after precipitating, which enters in activated sludge+MBR, to be handled, and the respiration of microorganism, flocculation are utilized Small milling and PAC, PAM are captured and combined, the crown_interception of MBR biomembrane is recycled, removes useless water part COD, residual Medicament, SS and milling are stayed, water outlet is almost without milling and PAC, PAM, it is ensured that the stable operation of subsequent intermediate water reuse system, When waste water enters the second reuse water treatment system, the service life of ultrafiltration membrane and reverse osmosis membrane can be greatly improved.
In the present invention, MBR system, which produces water, can reach general reuse requirement, and greening water is directly used in after decontamination system Deng can be directly discharged to municipal sewage pipe network, that is, enter the first recycle-water processing system when not needing reuse or the when of being further processed System.If higher to water quality requirement, MBR system produces water and needs after further treatment, i.e., to filter through ultrafiltration system, removes and remains in waste water Part microorganism, SS etc., ultra-filtration water water quality reaches after counter-infiltration system water inlet requires, then carries out desalination through counter-infiltration system Processing enters the second reuse water treatment system.
Compared with the prior art, the advantages of the present invention are as follows:
1, the invention firstly uses most of SS etc. in coagulating sedimentation system removal waste water, activated sludge system is recycled System, the small milling of the MBR system retention overwhelming majority and PAM, PAC, MBR system water outlet pass through at the second reuse water collection system It when reason, solves the problems, such as ultrafiltration membrane blocking, and MBR film easy cleaning, carries out chemical cleaning when reaching certain negative pressure.It solves The problem of general Treated sewage reusing technique ultrafiltration membrane blocking, film are run membrane lifetime 3 years or more, are better than general treatment process 1-2 Year.
2, abrasive waste water variation water quality is larger, and materializing strategy phase process effect is unstable, using glass cover of the invention The processing system of plate abrasive waste water has stable effluent quality, and impact resistance is strong, strong flexibility.
3, the processing system of the glass cover-plate abrasive waste water in the present invention, by the first reuse water collection system and/or the Two reuse water collection systems carry out reuse, and RO concentrated water can reach 4 three-level mark of " integrated wastewater discharge standard " (GB8978-1996) table More than standard, without handling again, it is directly discharged to municipal wastewater processing pipe network.After MBR water outlet is sterile-processed after sterilized, water Matter meets " urban sewage reutilization industry water standard " (GB/T 19923-2005) and " urban sewage reutilization city City's miscellaneous water water quality " (GB/T 18920-2002) requirement, used as secondary recycle-water.
4, grey water system reclamation rate of the invention is high, and reuse produces water up to 70% or so of water inlet, and production water can be used for big absolutely Part of production saves great lot of water resources.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention Some embodiments for those of ordinary skill in the art without creative efforts, can also basis These attached drawings obtain other attached drawings.
Fig. 1 is the structural schematic diagram of waste water treatment system of the invention.
Fig. 2 is another structural schematic diagram of waste water treatment system of the invention.
Marginal data:
1, wastewater equalization pond;2, coagulating sedimentation system;21, pH conditioning tank;22, coagulation reaction tank;23, flocculation tank; 24, sedimentation basin;25, pH adjusts back pond;26, PAC feed opening;27, PAM feed opening;3, activated Sludge System;4, MBR system;5, One reuse water collection system;51, decontamination system;52, the first recycle-water tank;6, the second reuse water collection system;61, ultrafiltration System;62, counter-infiltration system;63, the second recycle-water tank;7, anoxic pond.
Specific embodiment
To facilitate the understanding of the present invention, the present invention is made below in conjunction with Figure of description and preferred embodiment more complete Face meticulously describes, but the protection scope of the present invention is not limited to the following specific embodiments.
Unless otherwise defined, all technical terms used hereinafter and the normally understood meaning of those skilled in the art It is identical.Technical term used herein is intended merely to the purpose of description specific embodiment, is not intended to the limitation present invention Protection scope.
Unless otherwise specified, various raw material, reagent, the instrument and equipment etc. used in the present invention can pass through city Field is commercially available or can be prepared by existing method.
Embodiment:
As shown in Figure 1, the processing system of the glass cover-plate abrasive waste water of the present embodiment, the waste water including being sequentially communicated is adjusted Pond 1, coagulating sedimentation system 2, anoxic pond 7, activated Sludge System 3 and MBR system 4, the water outlet of MBR system 4 pass through connecting line It is communicated with the first reuse water collection system 5 and/or the second reuse water collection system 6;First reuse water collection system 5 includes disinfection System 51 and the first recycle-water tank 52;Second reuse water collection system 6 includes the ultrafiltration system 61, reverse osmosis being sequentially communicated System 62 and the second recycle-water tank 63.
In the present embodiment, coagulating sedimentation system 2 includes the pH conditioning tank 21 being sequentially communicated, coagulation reaction tank 22, flocculates instead Pond 23, sedimentation basin 24 and pH readjustment pond 25, coagulation reaction tank 22 is answered to be equipped with PAC feed opening 26, flocculation tank 23 is equipped with PAM feed opening 27.
In the present embodiment, the sludge reflux that MBR system 4 is discharged is to anoxic pond 7.
The processing method of the glass cover-plate abrasive waste water of the present embodiment, comprising the following steps:
S1: it sinks coagulation is pumped into again after the water quality and quantity of the glass cover-plate abrasive waste water injection adjusting waste water of wastewater equalization pond 1 Acid/base is added in pH conditioning tank 21 in shallow lake system 2, controls the pH of waste water in 8-9, PAC is added in coagulation reaction tank 22, wadding PAM is added in solidifying reaction tank 23, makes small suspended matter coacervating large particle suspended matter, carries out muddy water point in sedimentation basin 24 later From acid adjustment pH to 7 or so is added in supernatant to pH readjustment pond 25, collects supernatant.
S2: supernatant is denitrogenated by anoxic pond 7 by denitrifying bacteria;It is handled using activated Sludge System 3, Using the suction-operated of aerobic activated sludge, PAM, the PAC and tiny glass not precipitated completely in waste water by coagulating are adsorbed Glass milling, while removing part COD;Waste water finally passes through MBR system 4, by the filtration of MBR film, containing PAM, PAC with And the activated sludge of milling is trapped in outside film wire, waste water produces water collecting pit by film wire inner passage to MBR;Containing PAM, The activated sludge partial discharge of PAC and milling, it is ensured that the content of activated sludge in pond collects the water outlet of MBR system 4.
S3: being delivered to the first reuse water collection system 5 and/or the second reuse water collection system 6 for the water outlet of MBR system 4, When being delivered to the first reuse water collection system 5, the water outlet of MBR system 4 flows into the first recycle-water water storage after decontamination system 51 Pond 52;When being delivered to the second reuse water collection system 6, ultrafiltration system 61, counter-infiltration system are successively passed through in the water outlet of MBR system 4 The second recycle-water tank 63 is flowed into after 62;When being delivered to the first reuse water collection system 5 and the second reuse water collection system 6, The water outlet of MBR system 4 is divided into two-way and inputs the first reuse water collection system 5 and the second reuse water collection system 6, after treatment Respectively reach the first recycle-water tank 52 and the second recycle-water tank 63.
In the present embodiment, as shown in Fig. 2, anoxic pond 7 can also be omitted.
Application Example 1:
Glass cover-plate abrasive waste water is handled using processing system shown in Fig. 2 in the present embodiment, glass cover-plate grinding is useless Bulky one phase of the pears waste water (its parameter see the table below 1) of Shui Lan Cisco skill, the water outlet of MBR system 4 pass through the first recycle-water respectively and collect system System 5 and second reuse water collection system 6 handle, detailed process the following steps are included:
S1: it sinks coagulation is pumped into again after the water quality and quantity of the glass cover-plate abrasive waste water injection adjusting waste water of wastewater equalization pond 1 Shallow lake system 2, reaction time of the waste water in pH conditioning tank 21 are 10min, and the pH value that acid/base control waste water is added is 8-9;It is useless Reaction time of the water in coagulation reaction tank 22 is 30min, and the PAC processing of 150mg/L is added;Waste water is in flocculation tank 23 In reaction time be 30min, and be added 1.5mg/L PAM processing;Sedimentation time of the waste water in sedimentation basin 24 is not less than 2h, surface loading are controlled in 0.8m3/(m2H) below;Reaction time of the waste water in pH readjustment pond 25 is 20min, and is added The pH value of acid control waste water is 7 or so.
S2: supernatant is handled by activated Sludge System 3, controls residence time of the waste water in activated Sludge System 3 8h, controls DO content 3.5mg/L in activated Sludge System 3, and activated sludge content is 3000mg/L;Waste water finally passes through MBR system System 4, controlling residence time of the waste water in MBR system 4 is 2h, and permeant flux is in 15L/ (m2H), going out for MBR system 4 is collected Water.
S3: being delivered to the first reuse water collection system 5 or the second reuse water collection system 6 for the water outlet of MBR system 4, defeated When sending to the first reuse water collection system 5, the water outlet of MBR system 4 flows into the first recycle-water tank after decontamination system 51 52;When being delivered to the second reuse water collection system 6, ultrafiltration system 61, counter-infiltration system 62 are successively passed through in the water outlet of MBR system 4 After flow into the second recycle-water tank 63.When the processing of ultrafiltration system 61, water production control flux is 50L/ (m2H), filter pressure For 0.1MPa, backwash pressure 0.15MPa, membrane aperture is 0.02 μm, using external-compression type film;When the processing of counter-infiltration system 62, control Permeant flux processed is 16L/ (m2H), using pollution-resistant brackish water desalination film, intake pressure 1.2MPa.
After treatment, property is as shown in table 1 below for waste water in the present embodiment.
Reuse aqueous nature after bulky one phase of the pears waste water of 1: Lan Sike skill of table and processing
Project COD(mg/L) SS(mg/L) Ammonia nitrogen (mg/L) Conductivity (μ S/cm)
Water inlet 200-300 2000-3000 10-20 600-800
Secondary recycle-water 30-50 ≤5 2-5 ≤800
Recycle-water ≤10 ND ≤0.5 ≤50
In upper table, secondary recycle-water is obtained after the processing of the first reuse water collection system 5, and recycle-water passes through second It is obtained after the processing of reuse water collection system 6.
Application Example 2:
Glass cover-plate abrasive waste water is handled using processing system shown in FIG. 1 in the present embodiment, glass cover-plate grinding is useless The bulky pears second phase waste water of Shui Lan Cisco skill (its parameter see the table below 2), the water outlet of MBR system 4 pass through the first recycle-water respectively and collect system System 5 and second reuse water collection system 6 handle, detailed process the following steps are included:
S1: it sinks coagulation is pumped into again after the water quality and quantity of the glass cover-plate abrasive waste water injection adjusting waste water of wastewater equalization pond 1 Shallow lake system 2, reaction time of the waste water in pH conditioning tank 21 are 20min, and the pH value that acid/base control waste water is added is 8-9;It is useless Reaction time of the water in coagulation reaction tank 22 is 30min, and the PAC processing of 120mg/L is added;Waste water is in flocculation tank 23 In reaction time be 30min, and be added 1.8mg/L PAM processing;Sedimentation time of the waste water in sedimentation basin 24 is not less than 2h, surface loading are controlled in 0.8m3/(m2H) below;Reaction time of the waste water in pH readjustment pond 25 is 20min, and is added The pH value of acid control waste water is 7 or so.
S2: supernatant is denitrogenated by anoxic pond 7 by denitrifying bacteria;It is handled using activated Sludge System 3, Residence time 6h of the waste water in activated Sludge System 3 is controlled, DO content 3.0mg/L in activated Sludge System 3 is controlled, activity is dirty Cement content is 3000mg/L;Waste water finally passes through MBR system 4, and controlling residence time of the waste water in MBR system 4 is 2h, produces water Flux is in 13L/ (m2H), the water outlet of MBR system 4 is collected.
S3: being delivered to the first reuse water collection system 5 or the second reuse water collection system 6 for the water outlet of MBR system 4, defeated When sending to the first reuse water collection system 5, the water outlet of MBR system 4 flows into the first recycle-water tank after decontamination system 51 52;When being delivered to the second reuse water collection system 6, ultrafiltration system 61, counter-infiltration system 62 are successively passed through in the water outlet of MBR system 4 After flow into the second recycle-water tank 63.When the processing of ultrafiltration system 61, water production control flux is 45L/ (m2H), filter pressure For 0.1MPa, backwash pressure 0.15MPa, membrane aperture is 0.03 μm, using external-compression type film;When the processing of counter-infiltration system 62, control Permeant flux processed is 17L/ (m2H), using pollution-resistant brackish water desalination film, intake pressure 1.4MPa.
After treatment, property is as shown in table 2 below for waste water in the present embodiment.
Reuse aqueous nature after the bulky pears second phase waste water of 2: Lan Sike skill of table and processing
Project COD(mg/L) SS(mg/L) Ammonia nitrogen (mg/L) Conductivity (μ S/cm)
Water inlet 200-300 2000-3000 10-20 600-800
Secondary recycle-water 30-50 ≤5 2-5 ≤800
Recycle-water ≤10 ND ≤0.5 ≤50
Application Example 3:
This application embodiment is compared with Application Example 1, the difference is that wastewater source is different, in this application embodiment For wastewater source in blue Cisco's skill Liuyang Nan Yuanyi phase waste water, property is as shown in table 3 below.
After treatment, property is as shown in table 3 below for waste water in the present embodiment.
Reuse aqueous nature after 3: Lan Sike skill Liuyang Nan Yuanyi phase of table waste water and processing
Project COD(mg/L) SS(mg/L) Ammonia nitrogen (mg/L) Conductivity (μ S/cm)
Water inlet 200-300 2000-5000 10-20 800-1000
Secondary recycle-water 30-50 ≤5 2-5 ≤1000
Recycle-water ≤10 ND ≤0.5 ≤50

Claims (10)

1. a kind of processing system of glass cover-plate abrasive waste water, which is characterized in that including be sequentially communicated wastewater equalization pond (1), The water outlet of coagulating sedimentation system (2), activated Sludge System (3) and MBR system (4), the MBR system (4) passes through connecting line It is communicated with the first reuse water collection system (5) and/or the second reuse water collection system (6);
The first reuse water collection system (5) includes decontamination system (51) and the first recycle-water tank (52);
The second reuse water collection system (6) includes the ultrafiltration system (61) being sequentially communicated, counter-infiltration system (62) and second Recycle-water tank (63).
2. the processing system of glass cover-plate abrasive waste water according to claim 1, which is characterized in that the coagulating sedimentation system It (2) include that the pH conditioning tank (21) being sequentially communicated, coagulation reaction tank (22), flocculation tank (23), sedimentation basin (24) and pH are returned It adjusts pond (25).
3. the processing system of glass cover-plate abrasive waste water according to claim 2, which is characterized in that the coagulation reaction tank (22) PAC feed opening (26) are equipped with, the flocculation tank (23) is equipped with PAM feed opening (27).
4. the processing system of glass cover-plate abrasive waste water described in any one of -3 according to claim 1, which is characterized in that described mixed Anoxic pond (7) are additionally provided between solidifying settling system (2) and activated Sludge System (3).
5. the processing system of glass cover-plate abrasive waste water according to claim 4, which is characterized in that MBR system (4) row Sludge reflux out is to the anoxic pond (7).
6. a kind of processing method of glass cover-plate abrasive waste water, which comprises the following steps:
S1: it is pumped into coagulating sedimentation again after glass cover-plate abrasive waste water injection wastewater equalization pond (1) to be adjusted to the water quality and quantity of waste water System (2) after dosing coagulating sedimentation, collects supernatant;
S2: by supernatant by anoxic pond (7), activated Sludge System (3) and MBR system (4), going out for MBR system (4) is collected Water;
S3: the water outlet of MBR system (4) is delivered to the first reuse water collection system (5) and/or the second reuse water collection system (6), when being delivered to the first reuse water collection system (5), the water outlet of MBR system (4) flows into first after decontamination system (51) Recycle-water tank (52);When being delivered to the second reuse water collection system (6), ultrafiltration system is successively passed through in the water outlet of MBR system (4) System (61), counter-infiltration system (62) flow into the second recycle-water tank (63) afterwards;Be delivered to the first reuse water collection system (5) and When the second reuse water collection system (6), the water outlet of MBR system (4) is divided into two-way and inputs the first reuse water collection system (5) and the Two reuse water collection systems (6) respectively reach the first recycle-water tank (52) and the second recycle-water tank after treatment (63)。
7. the processing method of glass cover-plate abrasive waste water according to claim 6, which is characterized in that the glass cover-plate grinding Waste water is after wastewater equalization pond (1) adjusts the water quality and quantity of waste water, COD 200-300mg/L, SS 2000-5000mg/ L, ammonia nitrogen 10-20mg/L, conductivity are 600-800 μ s/cm.
8. the processing method of glass cover-plate abrasive waste water described according to claim 6 or 7, which is characterized in that the coagulating sedimentation System (2) include the pH conditioning tank (21) being sequentially communicated, coagulation reaction tank (22), flocculation tank (23), sedimentation basin (24) and PH adjusts back pond (25), and reaction time of the waste water in pH conditioning tank (21) is 10-30min, and acid/base control waste water is added PH value be 8-9;Reaction time of the waste water in coagulation reaction tank (22) is 10-30min, and 100-200mg/L is added PAC processing;Reaction time of the waste water in flocculation tank (23) is 10-30min, and the PAM of 0.5-2mg/L is added Processing;Sedimentation time of the waste water in sedimentation basin (24) is not less than 2h, and surface loading is controlled in 0.8m3/(m2H) below; Reaction time of the waste water in pH readjustment pond (25) is 10-30min, and the pH value that acid control waste water is added is 6.8-7.2.
9. the processing method of glass cover-plate abrasive waste water described according to claim 6 or 7, which is characterized in that the waste water is in work Property sludge system (3) in residence time 6-10h, DO content 3.0-3.5mg/L in control activated Sludge System (3), activity is dirty Cement content is 3000mg/L;Residence time of the waste water in MBR system (4) is 2h, and permeant flux is in 12-15L/ (m2· h)。
10. the processing method of glass cover-plate abrasive waste water described according to claim 6 or 7, which is characterized in that the ultrafiltration system (61) when handling, water production control flux is 40-50L/ (m2H), filter pressure 0.1MPa, backwash pressure 0.15MPa, film Aperture is 0.02-0.03 μm, using external-compression type film;When the counter-infiltration system (62) is handled, water production control flux is 16-18L/ (m2H), using pollution-resistant brackish water desalination film, intake pressure 1.2-1.5MPa.
CN201910722267.4A 2019-08-06 2019-08-06 A kind of processing system and processing method of glass cover-plate abrasive waste water Pending CN110498561A (en)

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