CN105948291A - Titanium-dioxide low-salt-waste-water recycling device and recycling method for low-salt waste water - Google Patents
Titanium-dioxide low-salt-waste-water recycling device and recycling method for low-salt waste water Download PDFInfo
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- CN105948291A CN105948291A CN201610392573.2A CN201610392573A CN105948291A CN 105948291 A CN105948291 A CN 105948291A CN 201610392573 A CN201610392573 A CN 201610392573A CN 105948291 A CN105948291 A CN 105948291A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a titanium-dioxide low-salt-waste-water recycling device and a recycling method for low-salt waste water. The titanium-dioxide low-salt-waste-water recycling device comprises a full-automatic quartz-sand filter, a cooling tower, a first buffering tank, a large-flow circulating pump, a tubular microfilter, a second buffering tank, a first high-pressure pump, a security filter, a first-grade DTRO, a third buffering tank, a second high-pressure pump, a second-grade RO and a desalinizing tank, wherein the full-automatic quartz-sand filter, the cooling tower, the first buffering tank, the large-flow circulating pump, the tubular microfilter, the second buffering tank, the first high-pressure pump, the security filter, the first-grade DTRO, the third buffering tank, the second high-pressure pump, the second RO and the desalinizing tank are sequentially connected. By means of the titanium-dioxide low-salt-waste-water recycling device, the problems that the low-salt-waste-water recycling technology is low in recycling rate, high in running cost and fluctuant in water-discharging quality are solved, low-salt waste water is completely recycled accordingly, cost is low, efficiency is high, water discharging is stable, and the occupied area is small; mechanical impurities of the recycled low-salt waste water is completely removed, the salinity (TDS) of the treated water quality is lower than 1 mg/L, the treated low-salt waste water can be directly recycled in production, and the influence on the quality of titanium dioxide can not be generated, and a large quantity of water resources are saved.
Description
Technical field
The present invention relates to a kind of titanium dioxide three wash water reclamation set and the reuse method of three wash waters, belong to sewage treatment area.
Background technology
The production of Chinese Titanium white lead, to having defined the production capacity of 3,200,000 tons/year at the end of 2015, occupies the first in the world, but
Titanium white production postprocessing working procedures can produce a large amount of waste water, and titanium white per ton about produces the high-salt wastewater of about 3 tons and about 7 tons
Less salt waste water, less salt waste water is referred to as three wash waters, and the physical property of three wash waters is as shown in table 1:
The physical property of table 1 three wash water
| Detection project | Unit | Numerical value | Remarks |
| TDS | mg/L | 4000 | Predominantly sodium sulfate |
| Hardness | mg/L | 3 | |
| Temperature | ℃ | 40-50 | |
| Turbidity | NTU | ≤0.5 | Carry out water unstable |
Current Producing Titanium Dioxide enterprise carries out industry grafting, lengthening manufacturing chain according to the character of by-product, it is possible to accomplish that resource is again
Utilize, reduce energy consumption further.But never it is suitable in terms of rutile titanium white flour flow design three washes the reuse of waste water
Method, the current process to three wash waters is: by this sewage after the titanium dioxide granule that filter is worn in sedimentation recovery, discharge,
Cause the waste of great lot of water resources；Three wash waters (less salt waste water) are back to use the one of titanium white production and wash two and wash by the enterprise also having
Operation uses as wash water, but it is the highest to be because salinity, is the most at most back to use 50%, and remaining can only discharge, and causes water to provide
The waste in source, it addition, three wash waters of directly reuse are owing to TDS (predominantly sodium sulfate) is close to 4000mg/L, directly
Recycle to one washing, two wash the quality necessarily affecting product.Therefore, a kind of low cost of exploitation, high efficiency, occupation of land it are badly in need of little
Three wash water reclamation sets.
Summary of the invention
In order to solve in prior art, produced three wash water reclamation rates in Producing Titanium Dioxide are low and affect the quality etc. of product scarce
Falling into, the present invention provides a kind of titanium dioxide three wash water reclamation set and the reuse method of three wash waters.
For solving above-mentioned technical problem, the technical solution adopted in the present invention is as follows:
A kind of titanium dioxide three wash water reclamation set, including full-automatic quartz filter connected in order, cooling tower, first delays
Waste preventer, big flow circulating pump, tubular type microstrainer, the second buffer tank, the first high-pressure pump, cartridge filter, one-level
DTRO, the 3rd buffer tank, the second high-pressure pump, two grades of RO and desalination water tank.
One-level DTRO represents disc tube reverse osmosis (dt-ro), and two grades of RO represent common rolling reverse osmosis.The application by device and
The selection of each device order of connection, it is achieved that the effective purification to three wash waters, at utmost avoids the waste of water resource.
During process, three wash waters sequentially pass through all parts of titanium dioxide three wash water reclamation set, from two grades of RO water quality out
Salinity (TDS) less than 4mg/L, three can be directly utilized and wash, titanium dioxide quality is not resulted in any negative effect.
The application is connected or communicates to be and is connected by pipeline, can arrange pump, valve etc. as required on pipeline.
In order to improve the reclamation rate of water further, it is to avoid waste, two grades of RO also communicate with the first buffer tank.
In order to be further ensured that water quality, it is preferable that the second buffer tank is that UF produces water tank；3rd buffer tank is RO water tank.
UF represents ultrafiltration, and RO represents reverse osmosis.
As the another kind of technical scheme of the application, full-automatic quartz filter can be replaced with Sedimentation tank or filter press.
The vertical order of the application is consistent with the flow direction of processed water.
In order to improve quality of reused water further, as the application another kind technical scheme, after full-automatic quartz filter also
Being provided with the 3rd water pump and filter press, wherein, full-automatic quartz filter, the 3rd water pump and filter press connect successively
Logical, filter press connects with cooling tower.The most also the decline water quality of filter of inlet pipe can be made to improve further, and turbidity reduction arrives
0.06NTU。
Three wash water salinity (TDS) reach 4000mg/L, are mainly composed of sodium sulfate, because water quality is unstable, the most still
Titanium dioxide granule containing denier, in order to improve the clean-up effect of three wash waters, utilizes the application titanium dioxide three wash water reuse to fill
Put back into the method with three wash waters, comprise the steps:
A, three wash waters enter full-automatic quartz filter and filter out the particulate matter of more than 0.5um, drop subsequently into cooling tower
The first buffer tank is entered back into after 22-30 DEG C；
B, by big flow circulating pump, the water in the first buffer tank is pumped into tubular type microstrainer and carry out secondary filter, remove
Below 0.5um particulate matter, tubular type microstrainer water out enters the second buffer tank, now water turbid in the second buffer tank
Degree is less than 0.03NTU；
C, by the first high-pressure pump, the water in the second buffer tank is pumped into cartridge filter, the water outlet order of cartridge filter
Entering one-level DTRO, one-level DTRO water desalination rate out has reached more than 98%, and the salinity (TDS) of effluent quality is low
In 80mg/L；
D, one-level DTRO water out enters the 3rd buffer tank, then by the second high-pressure pump by the water in the 3rd buffer tank
Pumping into two grades of RO, two grades of RO water desalination rate out has reached more than 95%, and the salinity (TDS) of effluent quality is less than
4mg/L；
E, two grades of RO water out enters desalination water tank and washes Yuan Shui as three.
One-level DTRO water out refers to the water after one-level DTRO purifies, and one-level DTRO filters and produces dense water, saliferous simultaneously
Amount reaches 20000mg/L, can collect and reclaim salt therein.Two grades of coiled reverse osmosis membranes (two grades of RO) water out refer to through
Water after two grades of coiled reverse osmosis membranes purifications, the dense water of also generation while two grades of coiled reverse osmosis membranes filtrations, now salt contains
Amount is not the most the highest, can enter the first buffer tank and enter next step purified treatment.
Above-mentioned one-level DTRO water desalination rate out has reached more than 98%, refers to that water is from entering one-level DTRO to going out one-level DTRO
Desalination rate；Two grades of RO water desalination rate out has reached more than 95%, refers to that water is from entering two grades of RO to going out removing of two grades of RO
Salt rate.
In above-mentioned steps A, cooling tower cooling is to ensure that the desalting efficiency of follow-up reverse osmosis membrane, can protect at this temperature simultaneously
Demonstrate,prove more preferable membrane flux.Step B is selected tubular type microstrainer, uses big traffic filtering liquid inner loop, efficiently solve thin
Little granule is multiplied at the enrichment on micro-filtration membrane surface, filtration flux, it is easy to backwash.
In order to improve the reclamation rate of three wash waters further, the dense water of two grades of RO generations enters the first buffer tank.
The NM technology of the present invention is all with reference to prior art.
Titanium dioxide three wash water reclamation set of the present invention, the reclamation rate solving three wash water reuse technologies is low, operating cost is high, go out
The drawback of water variation water quality, makes three wash water high-quality complete-reclaimings, and low cost, efficiency height, stable water outlet, occupation of land are little；
The mechanical admixture of three wash waters of reuse is removed completely, and after process, the salinity (TDS) of water quality is less than 4mg/L, can be direct
Reuse in production, titanium dioxide quality will not be produced any impact, save great lot of water resources, and accomplished thing
Reason desalting processing, greatly reduces soda acid consumption during ion exchange production desalted water, and in titanium powder industry, or even other is high
The recycling of saline holds out broad prospects.
Accompanying drawing explanation
Fig. 1 is that existing titanium white production post processing produces waste water processing mode schematic diagram；
Fig. 2 is the structural representation of the embodiment of the present invention 1 titanium dioxide three wash water reclamation set.
Detailed description of the invention
In order to be more fully understood that the present invention, it is further elucidated with present disclosure below in conjunction with embodiment, but present disclosure
It is not limited solely to the following examples.
Embodiment 1
As it can be seen, titanium dioxide three wash water reclamation set, including full-automatic quartz filter connected in order, cooling tower,
First buffer tank, big flow circulating pump, tubular type microstrainer, the second buffer tank, the first high-pressure pump, cartridge filter,
One-level DTRO, the 3rd buffer tank, the second high-pressure pump, two grades of RO and desalination water tank；Two grades of RO also with the first buffered water
Case communicates.Second buffer tank is that UF produces water tank；3rd buffer tank is RO water tank.
The method utilizing above-mentioned titanium dioxide three wash water reclamation set reuse three wash water, comprises the steps:
A, three wash waters enter full-automatic quartz filter and filter out the particulate matter of more than 0.5um, and now turbidity is at 0.1NTU,
The first buffer tank is entered back into after being down to 22-30 DEG C subsequently into cooling tower；
B, by big flow circulating pump, the water in the first buffer tank is pumped into tubular type microstrainer and carry out secondary filter, remove
Below 0.5um particulate matter, tubular type microstrainer water out enters the second buffer tank, now water turbid in the second buffer tank
Degree is less than 0.03NTU；
C, the water in the second buffer tank being pumped into by the first high-pressure pump cartridge filter, order enters one-level DTRO, and one
Level DTRO water desalination rate out has reached more than 98%, and the salinity of effluent quality is less than 80mg/L；
D, one-level DTRO water out enters the 3rd buffer tank, then by the second high-pressure pump by the water in the 3rd buffer tank
Pumping into two grades of RO, two grades of RO water desalination rate out has reached more than 95%, and the salinity of effluent quality is less than 4mg/L；
E, two grades of RO water out enters desalination water tank and washes Yuan Shui as three.
Embodiment 2
Substantially the same manner as Example 1, except that: full-automatic quartz filter Sedimentation tank is replaced.
Embodiment 3
Substantially the same manner as Example 1, except that: full-automatic quartz filter filter press is replaced.
Embodiment 4
Substantially the same manner as Example 1, except that: it is additionally provided with the 3rd water pump and sheet frame pressure after full-automatic quartz filter
Filter, wherein, full-automatic quartz filter, the 3rd water pump and filter press are sequentially communicated, filter press and cooling
Tower connects, and such effluent quality improves further, alleviates the burden of tubular type microstrainer.
Three wash waters turbidity after full-automatic quartz filter, filter press is further lowered into 0.06NTU.
Claims (7)
1. a titanium dioxide three wash water reclamation set, it is characterised in that: include full-automatic quartz filter connected in order,
Cooling tower, the first buffer tank, big flow circulating pump, tubular type microstrainer, the second buffer tank, the first high-pressure pump, security personnel
Filter, one-level DTRO, the 3rd buffer tank, the second high-pressure pump, two grades of RO and desalination water tank.
2. titanium dioxide three wash water reclamation set as claimed in claim 1, it is characterised in that: two grades of RO also buffer with first
Water tank communicates.
3. titanium dioxide three wash water reclamation set as claimed in claim 1 or 2, it is characterised in that: the second buffer tank is
UF produces water tank；3rd buffer tank is RO water tank.
4. titanium dioxide three wash water reclamation set as claimed in claim 1 or 2, it is characterised in that: full-automatic quartz sand mistake
Filter Sedimentation tank or filter press are replaced.
5. titanium dioxide three wash water reclamation set as claimed in claim 1 or 2, it is characterised in that: full-automatic quartz sand mistake
The 3rd water pump and filter press, wherein, full-automatic quartz filter, the 3rd water pump and filter press it is additionally provided with after filter
Machine is sequentially communicated, and filter press connects with cooling tower.
6. the method utilizing titanium dioxide three wash water reclamation set reuse three wash water described in claim 1-5 any one, its
It is characterised by: comprise the steps:
A, three wash waters enter full-automatic quartz filter and filter out the particulate matter of more than 0.5um, drop subsequently into cooling tower
The first buffer tank is entered back into after 22-30 DEG C；
B, by big flow circulating pump, the water in the first buffer tank is pumped into tubular type microstrainer and carry out secondary filter, remove
Below 0.5um particulate matter, tubular type microstrainer water out enters the second buffer tank, now water turbid in the second buffer tank
Degree is less than 0.03NTU；
C, by the first high-pressure pump, the water in the second buffer tank is pumped into cartridge filter, the water outlet order of cartridge filter
Entering one-level DTRO, one-level DTRO water desalination rate out has reached more than 98%, and the salinity of effluent quality is less than
80mg/L；
D, one-level DTRO water out enters the 3rd buffer tank, then by the second high-pressure pump by the water in the 3rd buffer tank
Pumping into two grades of RO, two grades of RO water desalination rate out has reached more than 95%, and the salinity of effluent quality is less than 4mg/L；
E, two grades of RO water out enters desalination water tank and washes Yuan Shui as three.
7. method as claimed in claim 6, it is characterised in that: the dense water of two grades of RO generations enters the first buffer tank.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610392573.2A CN105948291A (en) | 2016-06-03 | 2016-06-03 | Titanium-dioxide low-salt-waste-water recycling device and recycling method for low-salt waste water |
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|---|---|---|---|
| CN201610392573.2A CN105948291A (en) | 2016-06-03 | 2016-06-03 | Titanium-dioxide low-salt-waste-water recycling device and recycling method for low-salt waste water |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106517417A (en) * | 2016-11-04 | 2017-03-22 | 烟台金正环保科技有限公司 | New process for cyclic utilization of three-times-washing water based on titanium dioxide |
| CN107540141A (en) * | 2017-09-13 | 2018-01-05 | 四川绿沃创新环保工程有限公司 | A kind of recovery method of titanium dioxide coating waste water |
| CN114249442A (en) * | 2021-12-14 | 2022-03-29 | 莱特莱德(上海)技术有限公司 | High-hardness wastewater treatment device and method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103319042A (en) * | 2013-07-16 | 2013-09-25 | 北京倍杰特国际环境技术有限公司 | High-salt complex wastewater reuse and zero discharge integrated equipment and technology |
| CN104692456A (en) * | 2015-01-09 | 2015-06-10 | 上海安赐机械设备有限公司 | Green and environment-friendly sulfuric acid method titanium dioxide production device and process |
| US20150210569A1 (en) * | 2011-07-10 | 2015-07-30 | Woosh Watersystem Ltd | Drinking water vending dispenser facilitated to collect and purify drainage water |
| CN105271397A (en) * | 2015-10-29 | 2016-01-27 | 济南裕兴化工有限责任公司 | Production method of titanium dioxide capable of reducing water consumption |
-
2016
- 2016-06-03 CN CN201610392573.2A patent/CN105948291A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150210569A1 (en) * | 2011-07-10 | 2015-07-30 | Woosh Watersystem Ltd | Drinking water vending dispenser facilitated to collect and purify drainage water |
| CN103319042A (en) * | 2013-07-16 | 2013-09-25 | 北京倍杰特国际环境技术有限公司 | High-salt complex wastewater reuse and zero discharge integrated equipment and technology |
| CN104692456A (en) * | 2015-01-09 | 2015-06-10 | 上海安赐机械设备有限公司 | Green and environment-friendly sulfuric acid method titanium dioxide production device and process |
| CN105271397A (en) * | 2015-10-29 | 2016-01-27 | 济南裕兴化工有限责任公司 | Production method of titanium dioxide capable of reducing water consumption |
Non-Patent Citations (1)
| Title |
|---|
| 窦照英等: "《反渗透水处理技术应用问答》", 31 March 2004 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106517417A (en) * | 2016-11-04 | 2017-03-22 | 烟台金正环保科技有限公司 | New process for cyclic utilization of three-times-washing water based on titanium dioxide |
| CN107540141A (en) * | 2017-09-13 | 2018-01-05 | 四川绿沃创新环保工程有限公司 | A kind of recovery method of titanium dioxide coating waste water |
| CN114249442A (en) * | 2021-12-14 | 2022-03-29 | 莱特莱德(上海)技术有限公司 | High-hardness wastewater treatment device and method |
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Application publication date: 20160921 |