KR101641083B1 - High quality industrial reuse water supply system using UF/RO membrane for sewage/wastewater effluent water - Google Patents

High quality industrial reuse water supply system using UF/RO membrane for sewage/wastewater effluent water Download PDF

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KR101641083B1
KR101641083B1 KR1020150141122A KR20150141122A KR101641083B1 KR 101641083 B1 KR101641083 B1 KR 101641083B1 KR 1020150141122 A KR1020150141122 A KR 1020150141122A KR 20150141122 A KR20150141122 A KR 20150141122A KR 101641083 B1 KR101641083 B1 KR 101641083B1
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membrane
water
reverse osmosis
ultrafiltration
wastewater
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KR1020150141122A
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Korean (ko)
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권준혁
박병주
장지웅
이용진
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우진건설주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/02—Membrane cleaning or sterilisation ; Membrane regeneration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/025—Reverse osmosis; Hyperfiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
    • B01D61/08—Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/145—Ultrafiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
    • B01D61/14—Ultrafiltration; Microfiltration
    • B01D61/18—Apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D65/00—Accessories or auxiliary operations, in general, for separation processes or apparatus using semi-permeable membranes
    • B01D65/08—Prevention of membrane fouling or of concentration polarisation
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/16—Use of chemical agents
    • B01D2321/162—Use of acids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/16—Use of chemical agents
    • B01D2321/164—Use of bases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2321/00—Details relating to membrane cleaning, regeneration, sterilization or to the prevention of fouling
    • B01D2321/16—Use of chemical agents
    • B01D2321/168—Use of other chemical agents

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

Abstract

The present invention relates to a high-purity industrial water supply system for reusing waste water and wastewater using UF (Ultrafiltration) and RO (Reverse Osmosis) membranes, and more particularly to a tank or a storage tank for storing waste water and wastewater, (UF) feed pump that supplies effluent to the membranes according to a fixed flow rate and pressure for a predetermined period of time, and fine particles, turbidity and organic substances contained in the effluent of the waste water and wastewater are removed by a pressurized hollow fiber membrane, And a UF (Ulteriltration) unit which operates the system by repeating the situation and backwashing at a predetermined time. A UF CIP system for recovering the performance of the membrane by washing the UF with acid and alkali chemicals, a UF treated water storage tank for storing the treated water passing through the UF, a UF treated water storage tank for restoring the UF feed pump at a pressure of about 1.5 times, The backfilling pump of the UF and the backwashing pump of the UF are operated to feed a certain amount into the UF regularly to control the organic fouling due to the organic substances contained in the wastewater discharge water (NaOCl Dosing Unit) to prevent fouling by controlling organic matter propagation that can maintain the membrane performance to the maximum and affect post-treatment, and UF treated water to a cartridge filter A cartridge filter for protecting the downstream RO membrane high pressure pump and the RO membrane using a 10-1um depth filter, an ORP meter (Mete r), an antiscalant dosing unit for controlling the scale fouling of the downstream RO membrane by controlling the hard substance contained in the waste water discharge water, and an antiscalant dispensing unit for controlling the scale fouling of the downstream RO membrane. A RO membrane high pressure pump that maintains a high pressure of 10Bar or more according to the ion concentration and flows into the RO membrane, an RO membrane unit that separates ion materials contained in the UF treated water using a reverse osmosis membrane to produce pure water, (UF) and reverse osmosis (RO) membranes composed of an industrial water tank for storing pure water that has passed through a membrane, and a high purity industrial water supply system for reusing wastewater discharged water.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high purity industrial water supply system using UF (Ultrafiltration) and RO (Reverse Osmosis)

The present invention relates to a high-purity industrial water supply system for reusing waste water and wastewater using UF (Ultrafiltration) and RO (Reverse Osmosis) membranes, and more particularly to a tank or a storage tank for storing waste water, (UF) feed pump that supplies effluent water to the membrane at a constant flow rate and pressure for a predetermined period of time, and a reverse osmosis (RO) pump that removes fine particles, turbidity, and organic substances contained in the effluent water from the pressurized hollow fiber membrane, A UF (Ulteriltration) unit for operating the system by repeating the situation and backwashing at a predetermined time, a UF CIP system for restoring membrane performance by cleaning the UF unit with acid and alkali chemicals, A UF treatment water reservoir for storing the treated water that has passed through the UF unit, and a UF backwash tank at a pressure of 1.5 times or less than 2Bar of the UF feed pump (UF) backwashing pump and UF backwashing pump are operated to regulate the organic fouling caused by the organic substances contained in the wastewater discharge water, (NaOCl Dosing Unit) to prevent the fouling by controlling the propagation of organic matter that can maintain the highest quality of the UF treated water and to control the organic matter propagation that may affect the post-treatment, and UF treated water to the cartridge filter RO membrane feed pump and 10 ~ 1um Depth filter to protect the downstream RO membrane high pressure pump and RO membrane, and oxidant added to the front end according to real time measurement of ORP meter. An SBS dosing unit that reduces the amount of suspended solids and an antiscalant dosing unit that controls the scale fouling of the downstream RO membrane by controlling the hard substances contained in the waste water. g unit and the RO membrane high pressure pump which keeps the high pressure of 10Bar or more according to the concentration of ions contained in the UF treated water to the RO membrane and the ion material contained in the UF treated water by using the reverse osmosis membrane, (RO) membrane and an industrial water tank for storing pure water passing through a RO membrane, and a high purity industrial water supply system for reusing wastewater discharged water using an RO (reverse osmosis) membrane.

Generally, wastewater refers to water that can not be used as a mixture of organic and inorganic materials. Wastewater is generated in various facilities and manufacturing processes due to industrialization, and water pollution accidents occur frequently, and water pollution problems are being solved .

Therefore, reuse of wastewater effluent has been emerging due to the installation of reuse facilities for wastewater treatment water and the active exploration of water resources.

In addition, water demand is increasing due to improved living standards and economic activities. On the other hand, as limited water resources are expected to have a regional imbalance in water supply and demand in the future, aggressive water resource discovery and reuse of high quality effluent water are required.

Particularly, Korea belongs to a country with high stress on water, and the river drainage rate is 36%, which is weak against water use in case of drought.

Therefore, in order to reduce water stress from existing water sources such as rivers and to reduce the stress on water and to cope with drought due to climate change, there are cases of use of rainwater, heavy water and sewage reuse facilities, but in case of wastewater treatment water reuse facilities The case is small and reuse is steadily increasing every year, but most of them are used for river maintenance water, and it is very rare to reuse it as industrial water.

Conventionally, phosphorus (phosphoric acid), which is a main cause of eutrophication and is a limiting substance of algae growth, has mainly been treated by a biological treatment method or a chemical treatment method using a flocculant in a total phosphorus treatment device for sewage and wastewater treatment plants.

However, biological processes are difficult to operate, and it is not easy to obtain sustained and stable effluent quality.

Another electrolytic / coagulant removal technique is one of the technologies that can take advantage of the chemical removal technology and solve the disadvantages of the chemical deposition method, but it has problems such as electrode corrosion.

In addition, the crystallite removal method is one of the physico-chemical treatment methods that have been put to practical use among the methods of removing phosphorus in sewage, and it is possible to treat ordinary sewage secondary treatment water. However, the removal performance is affected by the set pH, calcium concentration, , The disturbance material in the raw water, the contact time, the performance of the contact material and the like, and since the object to be removed is soluble phosphoric acid, other types of phosphorus should be removed by secondary functions such as filtration.

In the assembly and dismantling method, magnesium is added to sewage to adjust the pH of the sewage, thereby recovering phosphorus as a crystal of magnesium ammonium phosphate, but it is unsuitable for treating discharged water.

In addition, conventional physical and chemical treatment devices have a great deal of difficulty in overuse of chemicals and sludge disposal.

Korean Patent Registration No. 10-1026734 (Mar. 28, 2011) "Treatment Apparatus and Method for Reusing Waste Water"

A UF feed pump, a UF unit, a UF CIP system, a UF treatment water reservoir, a UF backwash pump, a NaOCl dosing unit, an RO membrane feed pump, UF is used to completely remove SS, turbidity, and polymer organic substances contained in waste water and wastewater discharged water by forming cartridge filter, SBS Dosing unit, Antiscalant Dosing unit, RO membrane high pressure pump, RO membrane unit and industrial water tank High-purity industrial water supply system for reusing waste water and wastewater using F (Ultrafiltration) and RO (Reverse Osmosis) membranes, which is designed to improve the safe operation and total recovery rate of the whole system by increasing the treatment efficiency and recovery rate of the downstream RO membrane system The purpose is to provide.

In order to accomplish the above object, the present invention provides a method for producing a UF feed pump, comprising a tank or a storage tank for storing waste water and wastewater, a UF feed pump for supplying waste water to the waste water discharge water at a predetermined flow rate and a predetermined time, A pretreatment system that removes fine particles, turbidity, and organic substances contained in the waste water and wastewater effluent to reduce the load on the reverse reverse osmosis (RO) membrane, and a UF Ulteriltration unit and. A UF CIP system for recovering the performance of the membrane by washing the UF with acid and alkali chemicals, a UF treated water storage tank for storing the treated water passing through the UF, a UF treated water storage tank for restoring the UF feed pump at a pressure of about 1.5 times, The backfilling pump of the UF and the backwashing pump of the UF are operated to feed a certain amount into the UF regularly to control the organic fouling due to the organic substances contained in the wastewater discharge water (NaOCl Dosing Unit) to prevent fouling by controlling organic matter propagation that can maintain the membrane performance to the maximum and affect post-treatment, and UF treated water to a cartridge filter A cartridge filter for protecting the downstream RO membrane high pressure pump and the RO membrane using a 10-1um depth filter, an ORP meter (Mete r), an antiscalant dosing unit for controlling the scale fouling of the downstream RO membrane by controlling the hard substance contained in the waste water discharge water, and an antiscalant dispensing unit for controlling the scale fouling of the downstream RO membrane. A RO membrane high pressure pump that maintains a high pressure of 10Bar or more according to the ion concentration and flows into the RO membrane, an RO membrane unit that separates ion materials contained in the UF treated water using a reverse osmosis membrane to produce pure water, (UF) and reverse osmosis (RO) membranes composed of an industrial water tank for storing pure water that has passed through a membrane, and a high purity industrial water supply system for reusing wastewater discharged water.

The present invention controls the operation time of the UF backwash pump and the amount of NaOCl input according to the real-time throughput measured by the FLOW meter during operation of the UF system to maintain the optimal operating conditions through controlling the contamination weight of the membrane, There is a characteristic that the deterioration can be prevented in advance.

Through the ORP meter installed on the downstream side of the RO membrane feed pump, SBS can be automatically charged and reduced without reacting at the front end to prevent oxidation of the downstream RO membrane.

The antiscalant amount can be automatically adjusted according to the hardness material concentration through the hardness meter installed at the rear end of the cartridge filter to minimize the scale fouling depending on the hardness material.

It is possible to minimize the impact load on the RO membrane by setting the flow rate of the treated water through the flow meter installed in the RO membrane unit and performing the quantitative operation.

By removing most of the ionic substances contained in the wastewater discharge water through the RO membrane, it is possible to supply high-purity industrial water of better quality than the water quality to the workplace.

Further, the present invention has an effect that the above-described system can be changed in operation according to the site conditions by safety automation.

1 is a process diagram schematically showing a working process of the invention.
Fig. 2 and Fig. 3 are flowcharts showing a working process of the present invention. Fig.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will be readily apparent to those skilled in the art. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a component comprises a component, it is understood that it may include other components, not control of the other component, unless specifically stated otherwise.

1, the UF feed pump 20, the UF unit 30, the UF CIP system 40, the UF treated water storage tank 50, the UF backwash pump 60, the NaOCl The RO membrane feed pump 80, the cartridge filter 90, the SBS dosing unit 100, the antiscalant dosing unit 110, the RO membrane high pressure pump 120, the RO membrane unit 130, And a water storage tank 140.

Here, the discharged water storage tank 10 stores the lower and wastewater.

Here, the UF feed pump 20 supplies the discharged water to the membrane according to a predetermined time with a constant flow rate and pressure.

Here, the UF unit 30 is a pressurized hollow fiber membrane that removes fine particles, turbidity and organic substances contained in the waste water discharged from the waste water and wastewater, thereby reducing the load on the reverse reverse osmosis membrane. And backwashing is repeated.

Here, the UF CIP system 40 recovers the performance of the membrane by cleaning the UF unit with acid and alkaline chemicals.

Here, the UF treated water storage tank 50 stores the treated water that has passed through the UF unit.

Here, the UF backwash pump 60 performs UF backwash with a pressure of 1.5 times or less than 2 Bar of the UF feed pump.

The NaOCl dosing unit 70 controls the organic fouling due to the organic substances contained in the wastewater discharge water by applying a predetermined amount to the UF regularly in conjunction with the backwashing time in which the UF backwashing pump is operated, It is possible to prevent the fouling by controlling the propagation of the organic matter which can be maintained at the highest level and affect the post-treatment.

Here, the RO membrane feed pump 80 introduces UF-treated water into the cartridge filter at a pressure of 3 Bar or more.

Here, the cartridge filter 90 protects the rear end RO membrane high pressure pump and the RO membrane using a 10 to 1 um depth filter.

Here, the SBS dosing unit 100 reduces the oxidant introduced to the front end according to the real-time measurement of the ORP meter.

Here, the antiscalant dosing unit 110 controls the scale fouling of the rear end RO membrane by controlling the hard substance contained in the waste water discharge water.

Here, the RO membrane high-pressure pump 120 is configured to maintain a high pressure of 10 Bar or more according to the concentration of ions contained in UF-treated water and to flow the RO membrane into the RO membrane.

Here, the RO membrane unit 130 separates the ionic materials contained in the UF-treated water using a reverse osmosis membrane to produce pure water.

Here, the industrial water tank 140 stores the pure water that has passed through the RO membrane.

Therefore, the present invention completely removes the SS material, turbidity material, and polymer organic material contained in the waste water discharged from the wastewater using UF to improve the processing efficiency and recovery rate of the downstream RO membrane system, The recovery rate can be increased.

The UF CIP system 40 controls the operation time of the UF counterflow pump 60 and the NaOCl input amount according to the real-time throughput measured by the FLOW meter to maintain the optimum operation condition by controlling the contamination weight of the membrane, There is a feature that the deterioration of the film life due to the ring can be prevented in advance.

In addition, oxidizing agent which has not reacted at the front end through the ORP instrument provided at the rear end of the RO membrane feed pump 80 can be automatically charged and reduced to prevent oxidation of the rear end RO membrane.

As described above, the present invention includes a storage tank 10 for storing waste water,

A UF feed pump 20 for supplying discharged water to the membrane according to a predetermined time at a constant flow rate and pressure,

A pretreatment system that removes fine particles, turbidity and organic substances contained in the waste water from the pressurized hollow fiber membrane to reduce the load on the reverse reverse osmosis (RO) membrane. A UF (Ulteriltration) unit 30 that operates;

A UF CIP system 40 for recovering the performance of the membrane by cleaning the UF unit with acid and alkali chemicals,

A UF process water reservoir 50 for storing the process water passed through the UF unit,

A UF backwashing pump 60 that performs UF backwashing at a pressure of 1.5 times or less than 2 bars of the UF feed pump,

UF Backwashing It is possible to maintain the best membrane performance by controlling the organic fouling caused by the organic substances contained in the wastewater discharge water by applying a certain amount regularly to the UF in conjunction with the backwashing time in which the pump is operated, A NaOCl dosing unit 70 for controlling the propagation of organic matter to prevent fouling in advance,

An RO membrane feed pump 80 for introducing the UF-treated water into the cartridge filter at a pressure of 3 Bar or more,

A cartridge filter 90 for protecting the rear end RO membrane high pressure pump and the RO membrane using a 10-1um depth filter,

An SBS dosing unit 100 for reducing the oxidant introduced into the front end according to the real time measurement of the ORP meter,

An antiscalant dosing unit 110 for controlling the scale fouling of the rear end RO membrane by controlling the hard substance contained in the waste water / effluent discharge water,

A RO membrane high-pressure pump 120 for maintaining a high pressure of 10 Bar or more according to the concentration of ions contained in the UF-treated water and flowing the RO membrane into the RO membrane,

An RO membrane unit 130 for separating ion materials contained in the UF-treated water by using a reverse osmosis membrane to produce pure water,

And an industrial water tank 140 for storing pure water that has passed through the RO membrane.

According to the present invention having the above-described structure, the amount of antiscalant can be automatically controlled according to the concentration of a hard substance through a hardness meter provided at the rear end of the cartridge filter 90, so that scale fouling according to a hard substance can be minimized.

There is an effect that the impact load on the RO membrane can be minimized by setting a constant process water flow rate through the flow meter installed in the RO membrane unit 130 to proceed with the quantitative operation.

By removing most of the ionic substances contained in the wastewater discharge water through the RO membrane, it is possible to supply high-purity industrial water of better quality than the water quality to the workplace.

Further, the present invention has an effect that the above-described system can be changed in operation according to the site conditions by safety automation.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be.

It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may be implemented in a combined manner.

The scope of the present invention is defined by the appended claims rather than the detailed description, and all changes or modifications derived from the meaning and range of the claims and their equivalents should be construed as being included in the scope of the present invention.

10. Discharge water reservoir
20. UF Feed Pump
30. UF unit
40. UF CIP System
50. UF treated water storage tank
60. UF backwash pump
70. NaOCl Dosing Unit
80. RO Membrane Feed Pump
90. Cartridge Filters
100. SBS Dosing Unit
110. Antiscalant Dosing Unit
120. RO membrane high pressure pump
130. RO Membrane Unit
140. Industrial water tank

Claims (5)

The present invention relates to a high purity industrial water supply system for reusing waste water and wastewater using an ultrafiltration membrane (UF, Ultrafiltration) and a reverse osmosis (RO) membrane,
A discharge water storage tank (10) for storing the waste water / effluent discharge water,
An ultrafiltration membrane (UF) feed pump (20) for supplying effluent to the membrane at a predetermined flow rate and pressure for a predetermined time,
A pretreatment system that reduces the load on the back-end reverse osmosis (RO) membrane by removing fine particles, turbidity and organic substances contained in the effluent of the waste water and wastewater with a pressurized hollow fiber membrane. An ultrafiltration membrane (UF) unit 30;
An ultrafiltration membrane (UF) chemical cleaning (CIP) system 40 for cleaning the ultrafiltration membrane (UF) unit with acid and alkali chemicals to restore membrane performance,
An ultrafiltration membrane (UF) treatment water storage tank (50) for storing treatment water having passed through an ultrafiltration membrane (UF) unit;
An ultrafiltration membrane (UF) backwashing pump (60) which performs backwashing of the ultrafiltration membrane (UF) at a pressure of 1.5 times or less than 2 Bar of the ultrafiltration membrane (UF)
Ultrafiltration membrane (UF) The ultrafiltration membrane (UF) unit is charged with a certain amount regularly in conjunction with the backwash time in which the backwash pump is operated, and the organic fouling due to the organic substances contained in the wastewater effluent is controlled to maintain the membrane performance. (NaOCl Dosing Unit) 70 for controlling the propagation of organic matter which may affect the post-treatment so as to prevent fouling in advance,
A reverse osmosis (RO) membrane feed pump 80 for introducing ultrafiltration membrane (UF) -treated water into a cartridge filter at a pressure of 3 Bar or more;
A cartridge filter 90 that protects a rear stage reverse osmosis (RO) membrane high pressure pump and a reverse osmosis (RO) membrane using a 10-1um depth filter,
An SBS dosing unit 100 for reducing an oxidant introduced into a front end according to a real-time measurement value of an oxidation-reduction potential (ORP) meter,
An antiscalant dosing unit 110 for controlling the scale fouling of the rear-end reverse osmosis (RO) membrane by controlling a hard substance contained in the waste water / effluent discharge water,
(RO) membrane high pressure pump 120 for maintaining a high pressure of 10 bar or more according to the concentration of ions contained in the ultrafiltration membrane (UF) treated water and flowing it into a reverse osmosis (RO) membrane,
A reverse osmosis (RO) membrane unit 130 for separating ion materials contained in UF treated water by using a reverse osmosis membrane to produce pure water;
And an industrial water tank 140 for storing pure water having passed through a reverse osmosis (RO) membrane. The high purity industrial water supply system for reusing waste water and wastewater using UF (Ultrafiltration) and RO (Reverse Osmosis) .
The method according to claim 1,
The operating time of the ultrafiltration membrane (UF) backwash pump (60) and the amount of NaOCl input are adjusted according to the real-time throughput measured by the flow meter during the operation of the UF ultrafiltration membrane (CIP) system, (UF) and RO (reverse osmosis) membranes to maintain the operating conditions and to prevent the membrane lifetime from decreasing due to fouling. The high purity industrial water supply system.
The method according to claim 1,
(RO) Membrane Feed Pump (80) The downstream oxidant (ORP) meter installed at the downstream of the reverse osmosis (RO) membrane feed pump (80) (UF) and Reverse Osmosis (RO) Membranes.
The method according to claim 1,
The ultrafiltration (UF) ultrafiltration apparatus according to the present invention is configured to minimize scale fouling due to a hard substance by automatically adjusting an amount of an antiscalant to be charged according to a hardness material concentration through a hardness meter provided at the rear end of the upper cartridge filter 90. [ And RO (Reverse Osmosis) Membrane for High Purity Industrial Water Supply System.
The method according to claim 1,
(RO) membrane unit 130 to minimize the impact load on the reverse osmosis membrane (RO membrane) by setting a predetermined flow rate of water through the flow meter installed in the RO membrane unit 130, UF (Ultrafiltration) and RO (Reverse Osmosis) membranes, which are constructed to remove ionic substances contained in wastewater discharge water through RO membranes and to supply high-purity industrial water of better quality than water quality to the workplace. High - purity industrial water supply system for reusing discharged wastewater.
KR1020150141122A 2015-10-07 2015-10-07 High quality industrial reuse water supply system using UF/RO membrane for sewage/wastewater effluent water KR101641083B1 (en)

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CN108503068A (en) * 2017-12-04 2018-09-07 上海昱清环保工程有限公司 Novel agrochemical wastewater treatment equipment and method
CN109133449A (en) * 2018-08-08 2019-01-04 中国石油化工股份有限公司 A kind of waste water dephosphorization reclaiming system
KR20190045978A (en) * 2017-10-25 2019-05-07 현대제철 주식회사 Water treatment control apparatus and method thereof
KR101979939B1 (en) * 2018-10-12 2019-08-28 (주)엘에스티에스 Decentalized water supply system improving back wash efficiency of membrane
CN111410279A (en) * 2020-05-21 2020-07-14 重庆昕晟环保科技有限公司 Method for supplementing chlorine for secondary water supply and storage equipment
CN111533336A (en) * 2020-05-09 2020-08-14 江苏澳特克环境科技有限公司 Method for recycling cleaning waste liquid
EP3778496A4 (en) * 2018-03-27 2021-07-14 Toray Industries, Inc. Water treatment method and water treatment apparatus
CN114291974A (en) * 2021-12-31 2022-04-08 北京伟思创科技股份有限公司 Photocatalytic oxidation treatment process for water for washing vehicle
CN114368858A (en) * 2022-01-12 2022-04-19 浙江东洋环境科技有限公司 Chip electronic ultrapure water system process and system device thereof
CN115353235A (en) * 2022-08-25 2022-11-18 江苏润柘环境工程有限公司 Demineralized water system suitable for steelmaking equipment
CN115626686A (en) * 2022-07-19 2023-01-20 比亚迪股份有限公司 Cleaning system and cleaning method for ultrapure water equipment
CN117110066A (en) * 2023-10-12 2023-11-24 佛山市芯耀环保科技有限公司 Filter element testing system and method

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CN107117688A (en) * 2017-07-03 2017-09-01 成都威力生生物科技有限公司 A kind of water treatment system prepared for haemodialysis water
CN107117688B (en) * 2017-07-03 2023-05-30 成都威力生生物科技有限公司 Water treatment system for hemodialysis water preparation
KR20190045978A (en) * 2017-10-25 2019-05-07 현대제철 주식회사 Water treatment control apparatus and method thereof
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CN108503068A (en) * 2017-12-04 2018-09-07 上海昱清环保工程有限公司 Novel agrochemical wastewater treatment equipment and method
EP3778496A4 (en) * 2018-03-27 2021-07-14 Toray Industries, Inc. Water treatment method and water treatment apparatus
CN109133449A (en) * 2018-08-08 2019-01-04 中国石油化工股份有限公司 A kind of waste water dephosphorization reclaiming system
CN109133449B (en) * 2018-08-08 2024-01-23 中国石油化工股份有限公司 Wastewater dephosphorization recycling system
KR101979939B1 (en) * 2018-10-12 2019-08-28 (주)엘에스티에스 Decentalized water supply system improving back wash efficiency of membrane
CN111533336A (en) * 2020-05-09 2020-08-14 江苏澳特克环境科技有限公司 Method for recycling cleaning waste liquid
CN111410279A (en) * 2020-05-21 2020-07-14 重庆昕晟环保科技有限公司 Method for supplementing chlorine for secondary water supply and storage equipment
CN114291974A (en) * 2021-12-31 2022-04-08 北京伟思创科技股份有限公司 Photocatalytic oxidation treatment process for water for washing vehicle
CN114291974B (en) * 2021-12-31 2022-09-06 北京伟思创科技股份有限公司 Photocatalytic oxidation treatment process for water for washing vehicle
CN114368858A (en) * 2022-01-12 2022-04-19 浙江东洋环境科技有限公司 Chip electronic ultrapure water system process and system device thereof
CN115626686A (en) * 2022-07-19 2023-01-20 比亚迪股份有限公司 Cleaning system and cleaning method for ultrapure water equipment
CN115626686B (en) * 2022-07-19 2023-07-14 比亚迪股份有限公司 Cleaning system and cleaning method of ultrapure water equipment
CN115353235A (en) * 2022-08-25 2022-11-18 江苏润柘环境工程有限公司 Demineralized water system suitable for steelmaking equipment
CN117110066A (en) * 2023-10-12 2023-11-24 佛山市芯耀环保科技有限公司 Filter element testing system and method

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