CN108503067A - Industrial sewage treatment technology containing heavy metal - Google Patents
Industrial sewage treatment technology containing heavy metal Download PDFInfo
- Publication number
- CN108503067A CN108503067A CN201710123170.2A CN201710123170A CN108503067A CN 108503067 A CN108503067 A CN 108503067A CN 201710123170 A CN201710123170 A CN 201710123170A CN 108503067 A CN108503067 A CN 108503067A
- Authority
- CN
- China
- Prior art keywords
- sewage
- heavy metal
- tablet
- diaphragm plate
- water
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/285—Treatment of water, waste water, or sewage by sorption using synthetic organic sorbents
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
-
- 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
- C02F1/70—Treatment of water, waste water, or sewage by reduction
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/22—Chromium or chromium compounds, e.g. chromates
Abstract
Industrial sewage treatment technology containing heavy metal, one kind proposed by the present invention is in having the heavy metal-polluted water treatment system of sand filtration treatment process (after-treatment process) and tablet organic film plate filter progress (treatment process three times), after process object as primary flow path system contains heavy metal containing sewage by pretreatment process (single treatment process), carry out sand filtration processing, it is allowed to flow into the device of the organic diaphragm plate filtration system of tablet, simultaneously in the device of the organic diaphragm plate filtration system of tablet, it is mixed with flocculant and chelating agent containing heavy metal containing sewage, further add PH regulators, the heavy metal in sewage is set to form suspended matter not soluble in water, then membrane separation is carried out by the organic diaphragm plate filter progress of tablet.
Description
Technical field
The present invention relates to a kind of innoxious, resource treatment techniques such as trade effluent containing heavy metal, and in particular to a kind of
The technique that will be handled in the Industrial Waste Water Treatments containing heavy metal.
Background technology
Industrial discharge sewage disposal containing heavy metal usually has 1, the precipitation method；2, physical-chemical process；3, electrochemical process；4, it is raw
Object chemical method etc..There are hydroxide precipitation method, sulphide precipitation, reduction precipitation method and flocculent precipitation in the precipitation method；Physics
There are absorption method, floatation and ion-exchange in chemical method；There are electrolysis, electrodeposition process and diaphragm process in electrochemical process；
There are the biological pond method of purification, microorganism and algae facture and phytoremediation in biochemical process.But above-mentioned treatment technology or
It is that processing cost is high, or treated that effluent quality also needs to advanced treating.The flocculant that we use adds with chelating agent
Immersion moisture film facture not only reduces cost, it is often more important that the water quality of processing water, harmful substance has been significantly increased
Concentration in draining lacks far below the level-one A standards of country, especially China's water resource, and freshwater resources are flat far below international
Horizontal, the application of this technology is that sanitary sewage and recycling for industrial discharge sewage open broader approach, will be dirty
Water treatment plant becomes resource regeneration factory.
Invention content
It is an object of the invention to improve the removal efficiency to the heavy metal classes harmful substance in industrial discharge sewage, to the greatest extent may be used
The cyclic utilization rate that sewage can be improved makes trade effluent maximize and recycles.
Process object as primary flow path system passes through pretreatment process (single treatment process) first containing heavy metal containing sewage
Carry out flow automatic adjustment, reduction reaction carried out subsequently into reduction reaction pond, the water outlet of reduction reaction pond enter mixing pit into
Row PH adjustment carries out flocculation reaction adding flocculant into flocculation basin, and sand filtration processing is allowed to flow into the organic diaphragm plate filtering of tablet
The device of system, while in the device of the organic diaphragm plate filtration system of tablet, containing heavy metal containing sewage and flocculant and chelating agent into
Row mixing, makes the heavy metal in sewage form solid suspension not soluble in water, then passes through the organic diaphragm plate filter progress of tablet
The technique for carrying out membrane separation is entering chelate resins absorption tower by the trade effluent after film process in tablet water, right
Heavy metal classes in trade effluent carry out depth removal again.
1, in sewage-treatment plant containing heavy industries described in claim 1, its main feature is that using tablet organic film
Plate filters.It is characterized in that：Be discharged from industrial wastewater discharge system containing heavy metal containing sewage first via being placed on sewage aeration pond
Organic diaphragm plate filter device most surface layer polytetrafluoroethylene film 19 filter after, then 20 mistake of non-woven membrane bed course that passes through middle layer
Filter becomes clean water, then along innermost layer polyvinyl chloride drop formula fan-shaped array water conservancy diversion filter plate 21 diversion trench from polychlorostyrene second
Inlet 22 at the top of alkene plate is discharged by suction pump, and it is various that the organic diaphragm plate filter device of this tablet is suitable for biochemistry treatment
The processing of industrial discharge sewage.
2, dirty containing heavy industries in addition, being provided with chelating agent absorption tower in sewage-treatment plant containing heavy industries
After water is by chelating agent absorption tower, heavy metal is substantially completely removed, and heavy metal is far below discharging standards in sewage.
3, this is a kind of processing method of the sewage containing heavy industries.Addition flocculant in front and chelating agent technique
On basis, we also add PH regulators and mix, this is also a feature of this technique.
The present invention has following obvious advantage：
First adapts to the big feature of the complicated component of the sewage containing heavy industries, sewage quality amplitude of fluctuation；
Second simple in structure, durability, it is easy to maintain, failure is few；
Third can reduce operating cost, reduce running cost；
4th has more importantly been significantly increased the water quality of processing water, and concentration of the harmful substance in draining is far below
The level-one A standards of country, especially China's water resource lack, and freshwater resources are horizontal far below international average, the application of this technology
Broader approach is opened for sanitary sewage and recycling for industrial discharge sewage, sewage disposal plant is become into water money
Source recovery plant.
Description of the drawings
The purpose of the present invention, advantage and feature provide the most preferred embodiment described in conjunction with the following drawings.
Fig. 1 is the figure of waste water processes containing heavy industries；
Fig. 2 is the structure chart of diaphragm plate；
Fig. 3 is the schematic diagram on chelating agent absorption tower；
Symbol description：
1 promotes pond
2 regulating reservoirs
3 reduction ponds
4 mixing pits
5 flocculation basins
6 sedimentation basins
7 reaction tanks
8 membrane cisternas
9 chelate resins absorption towers
10 clear water reserviors
11 sludge storage pools
12 sludge dewatering equipments
13 NaHSO3Storage tank
14 alkali storage tanks
15 acid storage tanks
16 chelating agent storage tanks
17 flocculant storage tanks
18 air blowers
19 film layers
20 film pads
21 filter plates
22 collected water outlets
23 inflow entrances and anti-rinse liquid outlet
24 access holes
25 chelate resins
26 bottom discharge pipes
27 effusers
Specific implementation mode
The structure and operation principle of industrial discharge sewage disposal system containing heavy metal are described with reference to Fig. 1.Containing weight
It is by promotion pond 1, regulating reservoir 2, reduction pond 3, mixing pit 4, flocculation basin 5, sedimentation basin 6, instead at the industrial discharge sewage of metal
Answer pond 7, membrane cisterna 8, chelate resins absorption tower 9, clear water reserviors 10, sludge storage pool 11, sludge dewatering equipment 12, NaHSO3, storage tank 13
Alkali storage tank 14, acid storage tank 15, chelating agent storage tank 16, flocculant storage tank 17, air blower 18 are constituted.When the industrial discharge containing heavy metal
Sewage disposal rubbish is pumped into regulating reservoir 2 by promoting pond 1 by deep water, then quantitative to be transported to reduction pond 3 by pump, with by
NaHSO3The sulfuric acid that the reducing agent and sulfuric acid storage tank of storage tank 13 come is discharged into this, is become here, Cr (VI) is reduced to Cr (III)
Be poorly soluble substance removal, then enter back into mixing pit 4, herein with the wadding of the lye of alkali storage tank 13 and flocculant storage tank 16
Solidifying agent is delivered to flocculation basin 5 and carries out flocculation reaction after being mixed, subsequently into sedimentation basin 6, the primary water of sedimentation basin enters instead
It answers the chelating agent that pond 7 is come with chelating agent storage tank to be reacted, then membrane cisterna 8 is delivered to pump, by the processing of membrane filtration in water
Water is filtered through chelate resins absorption tower 9 in turn, and the draining after advanced treating saves as recycled water in clear water reserviors 10 and uses
The sludge of 8 bottom of sedimentation basin enters sludge storage pool 11, then drains into sludge dewatering equipment 12 and is dehydrated, dewatered sludge send to
Treatment of Sludge center.
Claims (3)
1. it is a kind of more particularly to industrial water drainage processing unit of the processing containing heavy metal containing sewage, there is sand filtration treatment process (secondary place
Science and engineering sequence) and the heavy metal-polluted water treatment system of tablet organic film plate filter progress (treatment process three times) in, as primary flow path
After the process object of system contains heavy metal containing sewage by pretreatment process (single treatment process), sand filtration processing is carried out, make and his like
Enter the device of the organic diaphragm plate filtration system of tablet, while in the device of the organic diaphragm plate filtration system of tablet, contains heavy metal containing sewage
It is mixed with flocculant and chelating agent, so that the heavy metal in sewage is formed suspended matter not soluble in water, then have by tablet
The technique that machine diaphragm plate filter progress carries out membrane separation.
2. in sewage-treatment plant containing heavy industries described in claim 1, its main feature is that using the organic diaphragm plate mistake of tablet
Filter.It is characterized in that：Be discharged from industrial wastewater discharge system containing heavy metal containing sewage first via being placed on having for sewage aeration pond
After the filtering of polytetrafluoroethylene film layer 19 on machine diaphragm plate filter device most surface layer, then pass through the filtering of non-woven membrane pad 20 of middle layer
As clean water, then along innermost layer polyvinyl chloride drop formula fan-shaped array water conservancy diversion filter plate 21 diversion trench from polyvinyl chloride
Collected water outlet 22 at the top of plate is discharged by suction pump, and it is various that the organic diaphragm plate filter device of this tablet is suitable for biochemistry treatment
The processing of industrial discharge sewage.
3. this is a kind of processing method of the sewage containing heavy industries.The basis of addition flocculant and chelating agent technique in front
On, we also add PH regulators and mix, this is also a feature of this technique.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710123170.2A CN108503067A (en) | 2017-02-25 | 2017-02-25 | Industrial sewage treatment technology containing heavy metal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710123170.2A CN108503067A (en) | 2017-02-25 | 2017-02-25 | Industrial sewage treatment technology containing heavy metal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108503067A true CN108503067A (en) | 2018-09-07 |
Family
ID=63372986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710123170.2A Pending CN108503067A (en) | 2017-02-25 | 2017-02-25 | Industrial sewage treatment technology containing heavy metal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108503067A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112520918A (en) * | 2020-10-31 | 2021-03-19 | 湖南内特环保科技有限公司 | Filtering membrane system for treating heavy metal wastewater |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003340450A (en) * | 2002-05-30 | 2003-12-02 | Toyota Motor Corp | Method and system for treating heavy metal-containing waste water |
| JP2006224023A (en) * | 2005-02-18 | 2006-08-31 | Matsushita Electric Ind Co Ltd | Method and apparatus for treating heavy metal-containing waste water |
| CN102372400A (en) * | 2011-09-27 | 2012-03-14 | 北京机电院高技术股份有限公司 | Hazardous waste handling center waste water integrated treatment system and method |
-
2017
- 2017-02-25 CN CN201710123170.2A patent/CN108503067A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003340450A (en) * | 2002-05-30 | 2003-12-02 | Toyota Motor Corp | Method and system for treating heavy metal-containing waste water |
| JP2006224023A (en) * | 2005-02-18 | 2006-08-31 | Matsushita Electric Ind Co Ltd | Method and apparatus for treating heavy metal-containing waste water |
| CN102372400A (en) * | 2011-09-27 | 2012-03-14 | 北京机电院高技术股份有限公司 | Hazardous waste handling center waste water integrated treatment system and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112520918A (en) * | 2020-10-31 | 2021-03-19 | 湖南内特环保科技有限公司 | Filtering membrane system for treating heavy metal wastewater |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180907 |
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| WD01 | Invention patent application deemed withdrawn after publication |