CN104528991A - System and process for preparing primary demineralized water by using household sewage - Google Patents
System and process for preparing primary demineralized water by using household sewage Download PDFInfo
- Publication number
- CN104528991A CN104528991A CN201410784543.7A CN201410784543A CN104528991A CN 104528991 A CN104528991 A CN 104528991A CN 201410784543 A CN201410784543 A CN 201410784543A CN 104528991 A CN104528991 A CN 104528991A
- Authority
- CN
- China
- Prior art keywords
- water
- pond
- reverse osmosis
- ultrafiltration
- pump
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—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
-
- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
- C02F2001/427—Treatment of water, waste water, or sewage by ion-exchange using mixed beds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Abstract
The invention provides a comprehensive and personalized system and process for preparing primary demineralized water by using household sewage. The system has the characteristics of great handling capacity, treatment effect up to standard and precise process and comprises three treatment systems: an ultrafiltration system, a reverse osmosis system and an ion exchange system, wherein cross flow water generated by an ultrafiltration membrane module enters an adjusting pool through an ultrafiltration cross flow pipeline; water generated by a reverse osmosis membrane module enters a water yielding pool, strong brine generated enters a strong brine pool, and the strong brine pool is connected with an ultrafiltration water yield pool by virtue of a pipeline and a valve; the demineralized water as backwashing water of the ultrafiltration membrane module can be further used as reagent preparation water of the reverse osmosis system and can also be used as cleaning water for a multi-medium filter; the ion exchange system is provided with a cation bed regenerated water pool and an anode bed regenerated water pool. The three systems are effectively combined to eligibly treat household sewage so as to meet the requirements of the primary demineralized water. The system and process can be used for heat supply or other water supply requirements in local petrochemical industry, so that water is repeatedly used and the water resources are saved.
Description
Technical field
The present invention relates to water treatment field, be specifically related to utilize sanitary sewage to prepare system and the technique of one-level de-mineralized water.
Background technology
Along with the day by day in short supply of water resources and the increase day by day of industrial process waters amount, the recovery and utilization technology of water is primary study direction always, a lot of water technology is had to come out in recent years, common as microorganism treatment, membrane technique facture, reverse-osmosis treated method, ion exchange treatment etc., but the personalisation process scheme lacked for the specific water quality in specific region, therefore treatment effect is not fully up to expectations.
Water quality difference under the difference of region, time is very large, on the basis that existing water technology develops, searches out a kind of combined treatment process, can meet local water quality situation, obtain qualified process water, is a problem being worth inquiring into.
Particularly, the region at applicant place is the petrochemical industry garden of Tianjin, a large amount of petroleum chemical enterprises assembles, at chemical field, because the feature of chemical reaction, demand for water is very large, what originally Plant of Tianjin Petrochemical Company water utilities group received is the fresh water source, underground of Baodi, then carries out water processed, because underground water does not reach the requirement of one-level de-mineralized water, also need to be processed into one-level de-mineralized water to re-use, need to increase water, electricity, acid, alkali etc., cost is higher, also higher to the operational requirement of employee.Local water quality characteristics is that saline and alkaline is larger.
Therefore the object of the invention is in the present case, need the feature of water for the water quality of locality and petrochemical industry, directly utilizing sanitary sewage to prepare one-level de-mineralized water, for meeting petrochemical industry water utilities demand, alleviating the water treatment burden of petroleum chemical enterprise's individuality, cost-saving.
Summary of the invention
The object of this invention is to provide a kind of synthesization, personalization, utilize sanitary sewage to prepare one-level de-mineralized water, for the process system of petrochemical industry water utilities, have the advantages that treatment capacity is large, treatment effect is up to standard, technique is simplified.
Technical scheme of the present invention is: a kind of system utilizing sanitary sewage to prepare one-level de-mineralized water, comprise three large treatment systems: ultrafiltration system, reverse osmosis system, ion exchange system, particularly, ultrafiltration system comprises the following equipment connected successively: is produced from pond in former pond, former pond lift pump, equalizing tank, multimedium service pump, more medium filter, self-cleaning filter, ultra-filtration membrane group, ultrafiltration; Reverse osmosis system comprise connect successively reverse osmosis booster pump, cartridge filter, high-pressure pump, reverse osmosis membrane group, reverse osmosis produced pond, described reverse osmosis booster pump and ultrafiltration are produced pond and are connected; Ion exchange system comprises the following equipment connected successively: ion-exchange service pump, cation bed, weak anion bed, anion bed, desalination pond, and described ion-exchange service pump is connected with described reverse osmosis produced pond; The one-level de-mineralized water obtained by desalination pond is supplied to user for pump by outer.
The feature of native system is: described ultrafiltration cross-flow water is connected with equalizing tank by ultrafiltration cross-flow pipeline, the process water that described reverse osmosis membrane group produces enters reverse osmosis produced pond, strong brine enters strong brine pond and reclaims, strong brine pond and ultrafiltration produce pond by pipeline and Valve controlling, be communicated with ultra-filtration membrane group and reverse osmosis system respectively, strong brine pond is also connected with more medium filter by pipeline; Described ion exchange system, is also provided with cation bed regeneration pond and anion bed regeneration pond.
The processing method of described system is: former water enters water collecting basin, through water collecting basin lift pump, be promoted to equalizing tank, be adjusted to suitable ph, then multimedium service pump is entered, via the effect of service pump, enter more medium filter, filter out the suspended impurity of 80%, then self-cleaning filter is entered, enter ultra-filtration membrane group again, ultrafiltration cross-flow Water Sproading enters equalizing tank, again utilizes;
The water obtained after ultra-filtration membrane group enters ultrafiltration and produces pond, again through reverse osmosis booster pump, enter cartridge filter, through high-pressure pump pressurization, enter reverse osmosis membrane group, the water obtained enters reverse osmosis produced pond, the strong brine that process produces then produces pond by pipeline connection with ultrafiltration, and by Valve controlling, both can be used as the backwash water of ultra-filtration membrane group, also can be used as the dose out powders water of reverse osmosis system, the water in strong brine pond also can be used as the water for cleaning of more medium filter simultaneously;
The water in reverse osmosis produced pond is after the pressurization of ion service pump, enter cation bed, weak anion bed, anion bed respectively, remove the zwitterion in water, enter desalination pond, then supply to user through outer for pump, cation bed, weak anion bed, anion bed are respectively arranged with regeneration pond, after the water of output is regenerated, and recycling.
Described self-cleaning filter is that a kind of filter screen that utilizes directly tackles impurity in water; remove water body recovery technology, particulate matter, reduce turbidity, purify water; the generations such as minimizing system dirt, bacterium algae, corrosion, with the precision equipment purified water and other equipment of securing system normally work.
The effect of described cartridge filter retains to produce from prime the particle being greater than 5 μm that water leaks or the external world brings into, prevent it from entering reverse osmosis system, this type of particle may puncture reverse osmosis membrane assembly after high-pressure pump is accelerated, and causes a large amount of situation of leaking salt, scratches the impeller of high-pressure pump simultaneously.
The advantage that the present invention has and positively effect are: this system is by three treatment system efficient combination, the qualified process to sanitary sewage can be realized, reach the requirement of one-level de-mineralized water, according to region characteristic, can be used for heat supply and other water demands of local petrochemical industry, achieve the recycling of water.Native system also has the feature of self structure, is provided with ultrafiltration cross-flow water pipeline, decreases waste water and arrange outward; Strong brine pond and ultrafiltration produce the water in pond as backwash water, dose out powders use water, water for cleaning, are controlled by multiway valve; Ion-exchange use water realizes regeneration, all achieves saving and the recycling of water resources.
Accompanying drawing explanation
Fig. 1 is schematic flow sheet of the present invention.
Embodiment
The invention provides a kind of utilize sanitary sewage to prepare one-level de-mineralized water system and technique based on this system, native system comprises three large treatment systems: ultrafiltration system, reverse osmosis system, ion exchange system, particularly, ultrafiltration system comprises the following equipment connected successively: is produced from pond in former pond, former pond lift pump, equalizing tank, multimedium service pump, more medium filter, self-cleaning filter, ultra-filtration membrane group, ultrafiltration; Reverse osmosis system comprise connect successively reverse osmosis booster pump, cartridge filter, high-pressure pump, reverse osmosis membrane group, reverse osmosis produced pond, described reverse osmosis booster pump and ultrafiltration are produced pond and are connected; Ion exchange system comprises the following equipment connected successively: ion-exchange service pump, cation bed, weak anion bed, anion bed, desalination pond, and described ion-exchange service pump is connected with described reverse osmosis produced pond; The one-level de-mineralized water obtained by desalination pond is supplied to user for pump by outer.
Former water processes through said system successively, obtains one-level de-mineralized water.
The feature of native system is: the cross-flow water of described ultra-filtration membrane group is connected with equalizing tank by ultrafiltration cross-flow pipeline, decreases the outer row of water, saving water resource; The process water that described reverse osmosis membrane group produces enters reverse osmosis produced pond, then aftertreatment systems is entered, the de-mineralized water produced then enters strong brine pond and reclaims, strong brine pond and ultrafiltration are produced pond and are communicated with, water wherein can be used as the backwash water of ultra-filtration membrane group, also can be used for the preparation of the medicament such as Scale inhibitors, reductive agent, for reverse osmosis system process, strong brine pond is also connected by pipeline with more medium filter; Described ion exchange system, is also provided with cation bed regeneration pond and anion bed regeneration pond, returns recycling, effective saving water resource after regenerating respectively to the water of cation bed, anion bed, weak anion bed.
The processing method of described system is: former water enters water collecting basin, through water collecting basin lift pump, be promoted to equalizing tank, be adjusted to suitable ph, then multimedium service pump is entered, via the effect of service pump, enter more medium filter, filter out the suspended impurity of 80%, then self-cleaning filter is entered, enter ultra-filtration membrane group again, the water obtained after ultra-filtration membrane group enters ultrafiltration and produces pond, again through reverse osmosis booster pump, enter cartridge filter, pressurize through high-pressure pump, enter reverse osmosis membrane group, the water obtained enters reverse osmosis produced pond, enter ion exchange system process successively again, finally obtain one-level de-mineralized water.
By native system process:
Flooding parameter is as follows:
Water outlet parameter is as follows:
| Project name | Unit | Numerical value | Quality measuring method |
| Turbidity | NTU | ≤1 | DL/T 809 |
| Free chlorine residual | mg/L | ≤0.1 | HANNA instrumental method |
| CODmn | mg/l | ≤2 | DL/T 502.22 |
| Water temperature | ℃ | 5-35 | |
| Fe3+ | μg/L | ≤50 | GB/T 14427-2008 |
| Cu2+ | μg/L | ≤10 | GB/T 13689-2007 |
| Oil | mg/L | 0 | GB/T16488-96 |
| Na+ | μg/L | ≤300 | GB/T 14640-2008 |
| SiO2 | μg/L | ≤100 | GB/T 12149-2007 |
| Specific conductivity | μs/cm | ≤5 | GB/T 6908-2008 |
Visible, the clearance for ion and oil can reach national requirements completely, and the water treatment local petrochemical industry being assembled to ground has greater significance.
Water after process is used for Plant of Tianjin Petrochemical Company water utilities by applicant, contributes to Plant of Tianjin Petrochemical Company and realizes " fresh water nearly zero consumes ", only this item, just can reach and year save fresh water 5,400,000 tons, save production cost 1,650,000 yuan, while saving clear water resource, additionally reduce discharge of wastewater.
Above one embodiment of the present of invention have been described in detail, but described content being only preferred embodiment of the present invention, can not being considered to for limiting practical range of the present invention.All equalizations done according to the present patent application scope change and improve, and all should still belong within patent covering scope of the present invention.
Claims (5)
1. the system utilizing sanitary sewage to prepare one-level de-mineralized water, comprise three large treatment systems: ultrafiltration system, reverse osmosis system, ion exchange system, particularly, ultrafiltration system comprises the following equipment connected successively: is produced from pond in former pond, former pond lift pump, equalizing tank, multimedium service pump, more medium filter, self-cleaning filter, ultra-filtration membrane group, ultrafiltration; Reverse osmosis system comprise connect successively reverse osmosis booster pump, cartridge filter, high-pressure pump, reverse osmosis membrane group, reverse osmosis produced pond, described reverse osmosis booster pump and ultrafiltration are produced pond and are connected; Ion exchange system comprises the following equipment connected successively: ion-exchange service pump, cation bed, weak anion bed, anion bed, desalination pond, and described ion-exchange service pump is connected with described reverse osmosis produced pond; The one-level de-mineralized water obtained by desalination pond is supplied to user for pump by outer.
2. a kind of system utilizing sanitary sewage to prepare one-level de-mineralized water according to claim 1, is characterized in that: described ultrafiltration cross-flow water is connected with equalizing tank by ultrafiltration cross-flow pipeline.
3. a kind of system utilizing sanitary sewage to prepare one-level de-mineralized water according to claim 1, it is characterized in that: the process water that described reverse osmosis membrane group produces enters reverse osmosis produced pond, strong brine enters strong brine pond and reclaims, strong brine pond and ultrafiltration produce pond by pipeline and Valve controlling, be communicated with ultra-filtration membrane group and reverse osmosis system respectively, strong brine pond is also connected with more medium filter by pipeline.
4. a kind of system utilizing sanitary sewage to prepare one-level de-mineralized water according to claim 1, is characterized in that: described ion exchange system, is also provided with cation bed regeneration pond and anion bed regeneration pond.
5. utilize sanitary sewage to prepare a technique for one-level de-mineralized water, it is characterized in that: former water enters water collecting basin, through water collecting basin lift pump, be promoted to equalizing tank, be adjusted to suitable ph, then enter multimedium service pump, via the effect of service pump, enter more medium filter, filter out the suspended impurity of 80%, then enter self-cleaning filter, then enter ultra-filtration membrane group, ultrafiltration cross-flow Water Sproading enters equalizing tank, again utilizes;
The water obtained after ultra-filtration membrane group enters ultrafiltration and produces pond, again through reverse osmosis booster pump, enter cartridge filter, through high-pressure pump pressurization, enter reverse osmosis membrane group, the water obtained enters reverse osmosis produced pond, the strong brine that process produces then produces pond by pipeline connection with ultrafiltration, and by Valve controlling, both can be used as the backwash water of ultra-filtration membrane group, also can be used as the dose out powders water of reverse osmosis system, the water in strong brine pond also can be used as the water for cleaning of more medium filter simultaneously;
The water in reverse osmosis produced pond is after the pressurization of ion service pump, enter cation bed, weak anion bed, anion bed respectively, remove the zwitterion in water, enter desalination pond, then supply to user through outer for pump, cation bed, weak anion bed, anion bed are respectively arranged with regeneration pond, after the water of output is regenerated, and recycling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410784543.7A CN104528991A (en) | 2014-12-16 | 2014-12-16 | System and process for preparing primary demineralized water by using household sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410784543.7A CN104528991A (en) | 2014-12-16 | 2014-12-16 | System and process for preparing primary demineralized water by using household sewage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104528991A true CN104528991A (en) | 2015-04-22 |
Family
ID=52844685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410784543.7A Pending CN104528991A (en) | 2014-12-16 | 2014-12-16 | System and process for preparing primary demineralized water by using household sewage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104528991A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104900286A (en) * | 2015-05-26 | 2015-09-09 | 清华大学 | System for processing radioactive waste water to reach natural background radioactivity level and application |
| CN105347440A (en) * | 2015-11-11 | 2016-02-24 | 天津市瑞德赛恩水业有限公司 | Backwashing system and process for filter membrane cleaning |
| CN114702190A (en) * | 2022-04-13 | 2022-07-05 | 昆明理工大学 | Device for co-processing high-arsenic high-fluorine lead-zinc tailing wastewater |
| CN115385491A (en) * | 2022-09-29 | 2022-11-25 | 上海电气电站环保工程有限公司 | Pre-desalination system with salt water self-treatment function |
-
2014
- 2014-12-16 CN CN201410784543.7A patent/CN104528991A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104900286A (en) * | 2015-05-26 | 2015-09-09 | 清华大学 | System for processing radioactive waste water to reach natural background radioactivity level and application |
| CN104900286B (en) * | 2015-05-26 | 2018-02-06 | 清华大学 | By Spent Radioactive water process to the horizontal system of natural background radioactivity and application |
| CN105347440A (en) * | 2015-11-11 | 2016-02-24 | 天津市瑞德赛恩水业有限公司 | Backwashing system and process for filter membrane cleaning |
| CN114702190A (en) * | 2022-04-13 | 2022-07-05 | 昆明理工大学 | Device for co-processing high-arsenic high-fluorine lead-zinc tailing wastewater |
| CN115385491A (en) * | 2022-09-29 | 2022-11-25 | 上海电气电站环保工程有限公司 | Pre-desalination system with salt water self-treatment function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105152399A (en) | Reverse osmosis container-type sea water desalination plant and water producing process thereof | |
| CN105668896A (en) | Purified water preparation system | |
| CN205088043U (en) | Integrated seawater desalination equipment of solar drive | |
| CN102115288A (en) | Method and equipment for recycling and treating vehicle cleaning and laundry wastewater | |
| CN103204598B (en) | Whole-house quality-divided purification method and device | |
| CN214654101U (en) | Chemical water treatment recycling system of thermal power plant | |
| CN204454757U (en) | A kind of electroplating rinse water online recycling Zero discharging system | |
| CN206173148U (en) | Energy -efficient seawater desalination equipment | |
| CN104528991A (en) | System and process for preparing primary demineralized water by using household sewage | |
| CN205222857U (en) | Reverse osmosis container formula sea water desalination device | |
| CN104163472A (en) | Energy-saving water-saving safe-water-quality medical reverse-osmosis pure water system | |
| CN110980989A (en) | Water-saving treatment system and treatment method for full-membrane-method first-stage reverse osmosis concentrated water | |
| CN105347440A (en) | Backwashing system and process for filter membrane cleaning | |
| CN204529569U (en) | A kind of ultrapure water production system | |
| CN202272787U (en) | Novel efficient reverse osmosis water treatment device | |
| CN211972026U (en) | Ultrapure water preparation system for laboratory | |
| CN201999822U (en) | Car and clothes washing waste water recycling processing device | |
| CN204569564U (en) | A kind of multiple, self-adjusting joint reverse osmosis commercial affairs water-purifying machine | |
| CN202208663U (en) | Seawater desalination treatment equipment | |
| CN204173955U (en) | The medical reverse osmose pure-water system of a kind of energy-saving and water-saving and water quality safety | |
| CN206255917U (en) | A kind of 8 tons of intermediate water reuse systems per hour | |
| CN106809993A (en) | A kind of Ultrapure water treatment technology | |
| CN202831058U (en) | Dual water supply system | |
| CN205501019U (en) | Purified water preparation system | |
| CN204981450U (en) | Zero -discharge waste water treatment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150422 |