CN106006901A - Method for reducing total suspended matter concentration of dust removal circulating water - Google Patents
Method for reducing total suspended matter concentration of dust removal circulating water Download PDFInfo
- Publication number
- CN106006901A CN106006901A CN201610591222.4A CN201610591222A CN106006901A CN 106006901 A CN106006901 A CN 106006901A CN 201610591222 A CN201610591222 A CN 201610591222A CN 106006901 A CN106006901 A CN 106006901A
- Authority
- CN
- China
- Prior art keywords
- water
- dust removal
- suspended matter
- industrial
- total suspended
- 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
- 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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a method for reducing the total suspended matter concentration of dust removal circulating water. The aim of reducing the total amount of suspended matters in the dust removal water to be smaller than 40mg/L within 5 minutes is fulfilled by sequentially adding an industrial polyaluminum chloride aqueous solution and an industrial polyacrylamide aqueous solution into the dust removal water and controlling the mass ratio of the aqueous solutions within the range of (40-120):(1-3). The method is small in flocculant using amount, low in cost, easy to operate and wide in treatment range, the problem of slightly high total suspended matter concentration of dust removal circulating water of a lump ore drying system can be solved, the dust removal efficiency of a bubble dust remover can be improved, and environmental pollution can be avoided.
Description
Technical field
The invention belongs to field of waste water treatment, be specifically related to a kind of method reducing de-dusting cycle water total suspended matter concentration, particularly relate to a kind of reduction block
The method of ore deposit drying system de-dusting cycle water total suspended matter concentration.
Background technology
Horse steel harbour affairs raw material head factory lump ore drying system uses bubble dust collector to carry out dedusting, and its water in dust removal recycles.During lump ore is dried
Produce substantial amounts of dust, owing to its particle diameter is little, light specific gravity so that it is can not rapid precipitation after entering circulating water pool with water in dust removal.Thus result in recirculated water
(first 10 minutes total suspended matter concentration of starting shooting reaches more than 4000mg/L to middle concentration of suspension severe overweight, and after stablizing water outlet, total suspended matter concentration is
1000mg/L-1500mg/L).It is recycled in bubble dust collector recycle float in rear water in dust removal be enriched with further, thus affects foam and remove
The dust collection capacity of dirt device, the flue gas causing cleaner unit chimney to be discharged is yellow, and environmental protection is the most up to standard.
At present, technique and method in terms of waste water process are a lot, " a kind of improvement of Chinese patent CN105540799 disclosed in 4 days Mays in 2016
The method of red ore deposit backwater water quality " describe Integrated Development and concentrate the clarification after-treatment efficient technique of rainwater utilization of overflow water+tailings storage backwater tapered, by flocculant
It is conveyed into agitator tank by automatic system to stir, is then conveyed in storage pharmacy jar, then enters in each depositing reservoir by adding transport pump；Realize red ore deposit
The after-treatment of backwater.
Chinese patent CN105585160 disclosed in 18 days Mays in 2016 " a kind of removes organic nitrogen and the work of float in coking reverse osmosis concentrated water
Process system and method " describe and a kind of sunk by intake pump, dosing pond, water-soluble active aluminium oxide high-efficiency adsorbent, adsorbent dosing pump, swash plate
The technique that the systems such as pond, shallow lake, elevator pump, more medium filter, multimedium filtrate process coking reverse osmosis concentrated water.
Chinese patent CN105461118 disclosed in 6 days April in 2016 " a kind of coal mine sewage processes and reuse technology " describes one and passes through manganese
Sand filter processes and makes coal mine sewage reach reuse method.
Chinese patent CN105000760 disclosed in 28 days October in 2015 " a kind of synchronous denitrification dephosphorizing and go oil removal technique " describes one
Plant by filtering denitrogenation dephosphorizing and the technique removing oil removal.
Technique and method in terms of waste water process disclosed above are a lot, but for quickly reducing lump ore drying system water in dust removal total suspended matter concentration aspect
Technique and method not yet occur, belong to domestic initiation.
Summary of the invention
For problem present in currently available technology, the invention provides a kind of method reducing de-dusting cycle water total suspended matter concentration, the method energy
Enough solve the problem that lump ore drying system de-dusting cycle water total suspended matter concentration is higher, improve the efficiency of dust collection of bubble dust collector, it is to avoid cause environment dirty
Dye.
The technical scheme that the present invention takes is:
A kind of method reducing de-dusting cycle water total suspended matter concentration, said method comprising the steps of:
(1) industrial polymerisation aluminum chloride and industrial polypropylene amide are configured to aqueous solution；
(2) in de-dusting cycle water, add industrial polymerisation aluminum chloride aqueous solution and be stirred aeration；
(3) add industrial polypropylene amide aqueous solution and be stirred aeration；
(4), after standing 5～10 minutes, take the de-dusting cycle supernatant after process and carry out total suspended matter measurement of concetration.
Further, in described step (1), the mass concentration percent of industrial polymerisation aluminum chloride aqueous solution and industrial polypropylene amide aqueous solution is equal
It is 20%～30%.Owing to two kinds of flocculant selected in the present invention are technical grade, two kinds of flocculant are all configured to aqueous solution and can improve it
With the reaction rate of float in water in dust removal, thus improve treatment effeciency；If not being configured to solution directly to add, first, in order to make flocculant
Float effect fully and in water in dust removal then needs to increase aeration time；Additionally flocculant usage amount can increased, and causes the waste of flocculant.
Further, the industrial polymerisation aluminum chloride added in de-dusting cycle water and the mass ratio of industrial polypropylene amide are (40～120): (1～3).
The amount of the industrial polymerisation aluminum chloride added in every cubic metre of de-dusting cycle water is 0.4～1.2 kilogram.The industry added in every cubic metre of de-dusting cycle water gathers
Closing aluminum chloride is 0.4～1.2kg, the most all adds after referring to be configured to the industrial polymerisation aluminum chloride of 0.4～1.2kg the aqueous solution of 20-30%.Flocculant
Dosage be to determine according to the total suspended matter concentration in water in dust removal, the water in dust removal total suspended matter concentration related in the present invention is a maximum of about of
4500～5000mg/L.The consumption explanation of reference flocculant, and combine the characteristic of this water in dust removal, by the way of test, determine two the most respectively
Plant the amount ranges of flocculant.If dosage is less than this scope, the clearance of float in water in dust removal can be affected；Not only result in higher than this scope
The waste of flocculant, the water in dust removal after also making process has certain viscosity, affects it and recycles.
Further, in described step (2), aeration time is 3～10 minutes.
Further, in described step (3), aeration time is 2～5 minutes.
Aeration in this invention is present to ensure that flocculant fully acts on the float in water in dust removal, to reach the effect of flocculating sedimentation.Aeration time
Less than this scope, the service efficiency of flocculant can be affected, it is impossible to guarantee that the float in water in dust removal is fully removed；For this invention, if during aeration
Between long, then can make in water in dust removal formed bulky grain flocculation sediment expand, loosely organized, cause difficulty for later stage scavenger precipitation.
Further, in described step (1), use 60～80 DEG C of hot water that polyacrylamide is configured to aqueous solution.Polyacrylamide is in the hot water
Dissolubility is better than cold water.
The present invention, with aluminium polychlorid and polyacrylamide as flocculant, by addition concentration, addition and aeration time both controlling, comes quickly
Reduce lump ore drying system de-dusting cycle water total suspended matter concentration.
Although aluminium polychlorid and polyacrylamide are common flocculant, also can reach to remove the effect of float in water although being used alone, but
It is when being used alone aluminium polychlorid, to reach the technique effect of the present invention, needs the polyaluminium aluminum amount added to be greatly increased, flocculation
Time also can be greatly prolonged, and along with the increase of aluminum chloride consumption, the vanadium flower of formation is more and more less, and subsidence velocity is increasingly slower, even in appearance
Emerge as, and the aluminum chloride of excess can make the pH value in water sample significantly raise；Same when being used alone polyacrylamide as flocculant, for
Reaching the technique effect as the present invention, need the polyacrylamide amount used to be greatly increased, flocculation required time also can be greatly prolonged, flocculation
Effect also can be substantially reduced because polyacrylamide can become stable colloid when high concentration, thus lose flocculating effect.
The present invention need to fix polyaluminium aluminum water solution and polyacrylamide solution adds except the order of heavy water, and reason is: according to the reason of water in dust removal
Change characteristic, it can be determined that the float in water in dust removal is mainly the lump ore of powder.Due to its particle diameter little (mean diameter 8.03 μm), the low (ratio of proportion
It is heavily 1.03), according to quiescent settling conclusion (of pressure testing), total suspended matter concentration is that the water in dust removal natural subsidence of 1500mg/L needs to below 50mg/L
Time is 65min.
Being initially charged aluminium polychlorid and adding the order of adding of polyacrylamide is to determine according to self physicochemical property of water in dust removal: 1) first add
Aluminium polychlorid can make to be allowed to be combined with each other by the effect such as surface adsorption, Van der Waals force between the suspended particle that the particle diameter in water in dust removal is minimum,
Become big, form bigger " alumen ustum ", separate from water in dust removal, reach the effect of coagulation；2) adding polyacrylamide again is to pass through polyacrylamide
Adsorption bridging, flocculation, net the effect such as catch, making to form " alumen ustum " in previous step water in dust removal becomes further, big sedimentation the rapid flocculation accelerated, from
And reach quickly to remove the purpose of total suspended matter in water in dust removal.
The present invention passes through many experiments, finds to control industrial polymerisation aluminum chloride (PAC) and industrial polypropylene amide (PAM) mass ratio
(40～120): in the proportion of (1～3), it is possible within 5 minutes, the TSM in water in dust removal is reduced to below 40mg/L.And surpass
Go out or less than this proportion, it is impossible within 5 minutes, reach preferable flocculating effect.Both are as follows to the removal principle of float in water in dust removal:
PAC the mechanism such as catches by compression double electric layer, absorption charge neutrality, precipitate net, and the float in water in dust removal can be allowed quickly to form big alumen ustum；
PAM then by mechanism such as flocculation, adsorption bridging, surface adsorption, potentiation, makes established alumen ustum in water in dust removal settle rapidly, thus
Reach to remove the purpose of total suspended matter concentration in water in dust removal.
Flocculant usage amount of the present invention is few, low cost, simple to operate, process range is wide.The total suspended matter in water in dust removal can be made in 5min dense
Degree is reduced to below 40mg/L by 1500mg/L～5000mg/L, reaches Treated sewage reusing national standard, and meets produced on-site needs.
Detailed description of the invention
By grain size analysis, the float mean diameter in water in dust removal is 8.03 μm, proportion 1.03.Its chemical composition is as shown in table 1 below:
Table 1: float chemical composition
Being drawn by quiescent settling test, water in dust removal total suspended matter concentration under the conditions of natural subsidence settles from 1500mg/L natural subsidence to 50mg/L
Time is 65min.
The invention discloses a kind of method reducing de-dusting cycle water total suspended matter concentration, the method comprises the following steps: according to every cubic metre of water in dust removal
Add the industrial polymerisation aluminum chloride of 0.4～1.2kg and the dosage of the industrial polypropylene amide of 0.01-0.03kg, first it is configured to respectively 20～30%
Aqueous solution；Under conditions of starting aeration agitation, industrial polymerisation aluminum chloride aqueous solution will be prepared and be slowly added to, continue aeration agitation 3～10min；
Stop aeration after being slowly added to by the industrial polypropylene amide aqueous solution prepared again and continuing aeration agitation 2～5min, start timing, 5min, 10min
After respectively take supernatant and carry out filtering, dry, weigh, calculate total suspended matter concentration.
For describing technical scheme in detail, its specific embodiment is as follows:
Embodiment 1
A kind of method reducing de-dusting cycle water total suspended matter concentration, the method comprises the following steps:
1) the industrial polymerisation aluminum chloride of 0.4kg and the dosage of the industrial polypropylene amide of 0.01kg are added according to every cubic metre of water in dust removal, first by it
Be configured to respectively 20% aqueous solution (prepare industrial polypropylene amide solution time, in order to make industrial polypropylene amide be substantially soluble in water, should use
60-80 DEG C of hot water is prepared)；
2) under conditions of starting aeration agitation, the industrial polymerisation aluminum chloride aqueous solution of prepare 20% is slowly added to, continues aeration agitation 5min；
3) aeration is stopped after being slowly added to by the 20% industrial polypropylene amide aqueous solution prepared and continue aeration agitation 3min.Start timing,
Respectively take supernatant after 5min, 10min to carry out filtering, dry, weigh, calculate total suspended matter concentration.Total suspended matter concentration pair before and after dust-water treatment
Than see table 2:
Table 2: total suspended matter concentrations versus before and after dust-water treatment
From above table 2 it can be seen that water in dust removal is after the method processes, after quiescent settling 5min, 10min, its total suspended matter concentration is the lowest
In 40mg/L, meet produced on-site and require and reach national standard for recycled water after.
Embodiment 2
A kind of method reducing de-dusting cycle water total suspended matter concentration, the method comprises the following steps:
1) the industrial polymerisation aluminum chloride of 0.5kg and the dosage of the industrial polypropylene amide of 0.02kg are added according to every cubic metre of water in dust removal, first by it
The aqueous solution being configured to 25% respectively (when preparing industrial polypropylene amide solution, in order to make PAM be substantially soluble in water, should use 60-80 DEG C of hot water
Prepare)；
2) under conditions of starting aeration agitation, the industrial polymerisation aluminum chloride aqueous solution of prepare 25% is slowly added to, continues aeration agitation
8min；
3) aeration is stopped after being slowly added to by the 20% industrial polypropylene amide aqueous solution prepared and continue aeration agitation 4min.Start timing,
Respectively take supernatant after 5min, 10min to carry out filtering, dry, weigh, calculate total suspended matter concentration.Total suspended matter concentration pair before and after dust-water treatment
Than see table 3:
Table 3: total suspended matter concentrations versus before and after dust-water treatment
From above table 3 it can be seen that water in dust removal is after the method processes, after quiescent settling 5min, 10min, its total suspended matter concentration is the lowest
In 40mg/L, meet produced on-site and require and reach national standard for recycled water after.
Embodiment 3
A kind of method reducing de-dusting cycle water total suspended matter concentration, the method comprises the following steps:
1) the industrial polymerisation aluminum chloride of 1kg and the dosage of the industrial polypropylene amide of 0.03kg are added according to every cubic metre of water in dust removal, first by its point
The aqueous solution not being configured to 30% (when preparing industrial polypropylene amide solution, in order to make PAM be substantially soluble in water, should use 60-80 DEG C of hot water to enter
Row preparation)；
2) under conditions of starting aeration agitation, the industrial polymerisation aluminum chloride aqueous solution of prepare 30% is slowly added to, continues aeration agitation
10min；
3) aeration is stopped after being slowly added to by the 30% industrial polypropylene amide aqueous solution prepared and continue aeration agitation 5min.Start timing,
Respectively take supernatant after 5min, 10min to carry out filtering, dry, weigh, calculate total suspended matter concentration.Total suspended matter concentration pair before and after dust-water treatment
Than see table 4:
Table 4: total suspended matter concentrations versus before and after dust-water treatment
From above table 4 it can be seen that water in dust removal is after the method processes, after quiescent settling 5min, 10min, its total suspended matter concentration is the lowest
In 40mg/L, meet produced on-site and require and reach national standard for recycled water after.
Comparative example 1
A kind of method reducing de-dusting cycle water total suspended matter concentration, the method, with embodiment 1, simply will add the exposure of PAC and PAM aqueous solution
The gas time has changed into 1 minute and 1 minute respectively, and before and after dust-water treatment, total suspended matter concentrations versus see table 5:
Table 5: total suspended matter concentrations versus before and after dust-water treatment
From above table 5 it can be seen that in the case of identical water sample, identical flocculant addition and flocculant concentration order are constant, only reduce aeration
Time, water in dust removal is after the method processes, and after quiescent settling 5min, 10min, its total suspended matter concentration is above 50mg/L, can not expire
Foot produced on-site needs, and does not also meet national standard for recycled water after.
Comparative example 2
A kind of method reducing de-dusting cycle water total suspended matter concentration, the method comprises the following steps: add 8.0kg according to every cubic metre of water in dust removal
The dosage of industrial polymerisation aluminum chloride, is first configured to the aqueous solution of 20%, is slowly added under conditions of aeration agitation, and continues aeration agitation
Aeration is stopped after 5min.Start timing, respectively take supernatant after 5min, 10min and carry out filtering, dry, weigh, calculate total suspended matter concentration.Remove
Before and after dirt water processes, total suspended matter concentrations versus see table 6:
Table 6: total suspended matter concentrations versus before and after dust-water treatment
From above table 6 it can be seen that even if the industrial polymerisation aluminum chloride of addition excess is as flocculant, water in dust removal is after the method processes, quiet
After only settling 5min, 10min, its total suspended matter concentration is above 50mg/L, is unsatisfactory for produced on-site and requires and do not reach national standard for recycled water after.
Comparative example 3
A kind of method reducing de-dusting cycle water total suspended matter concentration, the method comprises the following steps: add 2.0kg according to every cubic metre of water in dust removal
The dosage of industrial polypropylene amide, is configured to the aqueous solution of 20% by the hot water of industrial polypropylene amide 60-80 DEG C, in the condition of aeration agitation
Under be slowly added to, and continue to stop after aeration agitation 5min aeration.Start timing, respectively take after 5min, 10min supernatant carry out filtering, dry,
Weigh, calculate total suspended matter concentration.Before and after dust-water treatment, total suspended matter concentrations versus see table 7:
Table 7: total suspended matter concentrations versus before and after dust-water treatment
From above table 7 it can be seen that even if the industrial polypropylene amide of addition excess is as flocculant, water in dust removal is after the method processes, quiet
After only settling 5min, 10min, its total suspended matter concentration is above 50mg/L, is unsatisfactory for produced on-site and requires and do not reach national standard for recycled water after.
Comparative example 4
A kind of method reducing de-dusting cycle water total suspended matter concentration, the method, with embodiment 1, is simply initially charged industrial polypropylene acyl in water in dust removal
Amine aqueous solution is stirred aeration, then is initially charged industrial polymerisation aluminum chloride aqueous solution in water in dust removal and is stirred aeration, always hangs before and after dust-water treatment
Float concentrations versus see table 8:
Table 8: total suspended matter concentrations versus before and after dust-water treatment
From above table 8 it can be seen that after being exchanged by the addition sequence of industrial polymerisation aluminum chloride and industrial polypropylene amide, water in dust removal is through the method
After process, after quiescent settling 5min, 10min, its total suspended matter concentration is above 50mg/L, is unsatisfactory for produced on-site and requires and do not reach country
Treated sewage reusing standard.
The order of adding exchanging two kinds of flocculant cannot realize removing the purpose of float in water in dust removal in 5～10min, is said by following 2
Bright: 1) at equal water sample, equal aeration, sedimentation time, under conditions of two kinds of flocculant dosages are constant, from process of the test it can be seen that elder generation
After adding polyacrylamide, " alumen ustum " formed in water in dust removal to be considerably less than initially charged " alumen ustum " that aluminium polychlorid is formed；After having tested, warp
After process, water in dust removal solid-liquid separation effect is poor, supernatant is the most muddy.2) as can be seen from the test results, after exchanging order of adding, treated
After water in dust removal in total suspended matter concentration will apparently higher than exchange before.
The above-mentioned detailed description carried out the method reducing de-dusting cycle water total suspended matter concentration with reference to embodiment, is illustrative rather than limited
, can according to restriction scope list several embodiments, therefore changing and modifications under without departing from present general inventive concept, the present invention should be belonged to
Protection domain within.
Claims (7)
1. the method reducing de-dusting cycle water total suspended matter concentration, it is characterised in that said method comprising the steps of:
(1) industrial polymerisation aluminum chloride and industrial polypropylene amide are configured to aqueous solution；
(2) in de-dusting cycle water, add industrial polymerisation aluminum chloride aqueous solution and be stirred aeration；
(3) add industrial polypropylene amide aqueous solution and be stirred aeration；
(4), after standing 5～10 minutes, take the de-dusting cycle supernatant after process and carry out total suspended matter measurement of concetration.
Method the most according to claim 1, it is characterised in that: in described step (1), industrial polymerisation aluminum chloride aqueous solution and industrial polypropylene amide
The mass concentration percent of aqueous solution is 20%～30%.
Method the most according to claim 1, it is characterised in that: the industrial polymerisation aluminum chloride added in de-dusting cycle water and the matter of industrial polypropylene amide
The ratio of amount is (40～120): (1～3).
4. according to the method described in claim 1-3 any one, it is characterised in that the industrial polymerisation aluminum chloride added in every cubic metre of de-dusting cycle water
Amount is 0.4～1.2 kilogram.
Method the most according to claim 1, it is characterised in that: in described step (2), aeration time is 3～10 minutes.
Method the most according to claim 1, it is characterised in that: in described step (3), aeration time is 2～5 minutes.
Method the most according to claim 1, it is characterised in that: in described step (1), use 60～80 DEG C of hot water to be configured to by polyacrylamide
Aqueous solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610591222.4A CN106006901A (en) | 2016-07-25 | 2016-07-25 | Method for reducing total suspended matter concentration of dust removal circulating water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610591222.4A CN106006901A (en) | 2016-07-25 | 2016-07-25 | Method for reducing total suspended matter concentration of dust removal circulating water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106006901A true CN106006901A (en) | 2016-10-12 |
Family
ID=57117805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610591222.4A Pending CN106006901A (en) | 2016-07-25 | 2016-07-25 | Method for reducing total suspended matter concentration of dust removal circulating water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106006901A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55137084A (en) * | 1979-04-11 | 1980-10-25 | Nippon Chem Ind Co Ltd:The | Treating method of grout exhaust water |
| CN1115742A (en) * | 1994-07-27 | 1996-01-31 | 华南师范大学 | Wet dedusting and sewage purifying method for coal-burning industrial boiler |
| CN101041495A (en) * | 2007-03-05 | 2007-09-26 | 武汉钢铁(集团)公司 | High polymer composite coagulant for treatment of oily waste water and making method thereof |
| CN102616979A (en) * | 2011-12-26 | 2012-08-01 | 上海集惠环保科技发展有限公司 | Treatment method for surface treatment liquid wastewater of metal processing |
| CN103408201A (en) * | 2013-08-30 | 2013-11-27 | 河南新大新材料股份有限公司 | Treatment method of industrial wastewater in silicon wafer mortar recovery |
-
2016
- 2016-07-25 CN CN201610591222.4A patent/CN106006901A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55137084A (en) * | 1979-04-11 | 1980-10-25 | Nippon Chem Ind Co Ltd:The | Treating method of grout exhaust water |
| CN1115742A (en) * | 1994-07-27 | 1996-01-31 | 华南师范大学 | Wet dedusting and sewage purifying method for coal-burning industrial boiler |
| CN101041495A (en) * | 2007-03-05 | 2007-09-26 | 武汉钢铁(集团)公司 | High polymer composite coagulant for treatment of oily waste water and making method thereof |
| CN102616979A (en) * | 2011-12-26 | 2012-08-01 | 上海集惠环保科技发展有限公司 | Treatment method for surface treatment liquid wastewater of metal processing |
| CN103408201A (en) * | 2013-08-30 | 2013-11-27 | 河南新大新材料股份有限公司 | Treatment method of industrial wastewater in silicon wafer mortar recovery |
Non-Patent Citations (2)
| Title |
|---|
| 边巴科夫: "《论水的混凝》", 31 October 1982, 中国建筑工业出版社 * |
| 龚望欣: "《催化裂化烟气脱硫除尘脱硝技术问答》", 30 April 2015, 中国石化出版社 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105000713B (en) | A kind of desulfurization wastewater treatment system and method | |
| CN105084589B (en) | The processing method and system of wet-type magnesium method desulfurization waste water | |
| CN103043821A (en) | Deep treatment method for printing ink wastewater by membrane method | |
| CN105540805A (en) | Potato starch waste water macro-molecule organic matter separation treatment special-purpose flocculating agent | |
| CN105060604A (en) | Purification process for coal fired power plant desulphurization sewage | |
| CN204122439U (en) | For the city garbage burning flying ash resource pretreatment system of cement producting material | |
| CN103641281A (en) | High-salt organic industrial wastewater treatment process method | |
| CN104176883A (en) | Papermaking wastewater resourceful treatment system and corresponding process | |
| CN205653287U (en) | Device that zero release of desulfurization waste water was handled | |
| CN101423274A (en) | Method for preparing composite flocculant for treating printing and dyeing wastewater using reactive dye as main component | |
| CN106830251B (en) | Composite chitosan flocculant for treating desulfurization wastewater and preparation method and application thereof | |
| CN215049255U (en) | Resourceful pretreatment system of coal fired power plant desulfurization waste water | |
| CN110697990A (en) | Method for purifying sewage and reducing suspended matters in water body | |
| CN104761039B (en) | A kind of association complex processing cadmium wastewater and application process thereof | |
| CN116333212B (en) | Special anionic polymer for shield mud dehydration and preparation method thereof | |
| CN105384230A (en) | Cellulose wastewater pretreatment apparatus and application thereof | |
| CN105384322A (en) | Sludge drying and sewage treatment method | |
| CN103007588B (en) | The method of the ammonium sulfate liquor purification that a kind of sintering flue gas ammonia method desulfurizing technique produces | |
| CN101698545B (en) | Desulfurated circulating water purification treatment equipment and method | |
| CN106006901A (en) | Method for reducing total suspended matter concentration of dust removal circulating water | |
| CN203382630U (en) | Sludge treatment system | |
| CN109650665A (en) | A kind of energy-saving and emission-reducing town sewage treatment system | |
| CN216808467U (en) | Oil field fracturing flow-back fluid full-quantization treatment system | |
| CN105967484A (en) | Sludge deep dehydration method for processing flue gas desulfurization wastewater sludge | |
| CN103351065A (en) | Mixed type foundry waste sand wet reclamation wastewater processing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 243003 Department of intellectual property right of Hunan West Road No. 8 technology center, Ma'anshan City, Anhui Province Applicant after: Ma'anshan Iron and Steel Co., Ltd. Address before: 243003 Hunan Anhui West Road, No. 8 technology center, Intellectual Property Department Applicant before: Ma'anshan Iron and Steel Co., Ltd. |
|
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 243003 8 Jiuhua Road, Yushan, Ma'anshan, Anhui Applicant after: Ma'anshan Iron and Steel Co., Ltd. Address before: 243003 intellectual property department, technology center, No. 8 Hunan West Road, Yushan, Ma'anshan, Anhui Applicant before: Ma'anshan Iron and Steel Co., Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |