CN104310720A - Method for treating paper-making wastewater - Google Patents
Method for treating paper-making wastewater Download PDFInfo
- Publication number
- CN104310720A CN104310720A CN201410635241.3A CN201410635241A CN104310720A CN 104310720 A CN104310720 A CN 104310720A CN 201410635241 A CN201410635241 A CN 201410635241A CN 104310720 A CN104310720 A CN 104310720A
- Authority
- CN
- China
- Prior art keywords
- water
- silica frost
- scum silica
- wastewater
- treatment
- 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
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/122—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
-
- 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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
- C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1263—Sequencing batch reactors [SBR]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
- C02F3/305—Nitrification and denitrification treatment characterised by the denitrification
Abstract
The invention discloses a method for treating wastewater. The method comprises the following steps: step 1, pretreatment: enabling wastewater generated by a paper-making production line to pass through a grid inclined net first so as to filter and remove partial fine fiber materials; step 2, quality adjusting treatment: enabling the pretreated wastewater to automatically flow into an adjusting pool, adjusting the concentration of the wastewater and enabling the water amount to be uniform; step 3, treatment of scum: elevating the quality-adjusted wastewater to air floatation equipment by using a pump and removing the scum in the wastewater by using the air floatation equipment; step 4, biochemical treatment: biochemically treating the wastewater whose scum is treated so as to remove a large amount of residual organic materials in the wastewater; step 5, discharging on standards: after the water quality of the wastewater satisfies discharging requirements, discharging the wastewater. Through the adoption of the method for treating the wastewater, disclosed by the invention, the wastewater from different production lines of paper-making factories is comprehensively treated so that indexes of the treated wastewater all reach discharging standards required by Ministry of Environmental Protection.
Description
Technical field
The present invention relates to the technical field of wastewater treatment, particularly relate to a kind for the treatment of process of paper waste.
Background technology
Paper industry uses timber, straw, reed, rag etc. to be raw material, isolates Mierocrystalline cellulose, make paper pulp through High Temperature High Pressure boiling.In process of production, finally the non-cellulose part of discharging in raw material becomes black liquid.Containing xylogen, Mierocrystalline cellulose, VFA etc. in black liquor, frowziness, contaminative is very strong.In existing paper enterprise, there is the waste water that a large amount of source is different, the waste water of the waste water of such as cup paper production line, the waste water utilizing regenerated paper pulp Production and Packaging paper using and folk custom supertition paper using production line, the waste water degree of irregularity in these sources is higher, water quality, the water yield change greatly, containing a large amount of organism and suspended solid.
In view of this, the present inventor studies and devises a kind for the treatment of process of paper waste.
Summary of the invention
The object of the present invention is to provide a kind for the treatment of process of paper waste, by the step of grid pre-treatment, shallow air-floatation process and sequencing batch active sludge, sewage for different production line source, paper mill carries out comprehensive treating process, makes the indices of the sewage after processing all reach the emission standard of Chinese Ministry of Environmental Protection's requirement.
To achieve these goals, the present invention solves the technical scheme that its technical problem takes and is:
A kind of method of wastewater treatment, comprises the following steps:
Step one, pre-treatment: the waste water that paper production line produces, first through the oblique net of grid, filters part fine-fibered material and removes;
Step 2, modifier treatment: pretreated waste water is from flowing to equalizing tank, and regulating water quality concentration also makes the water yield even;
Step 3, scum silica frost process: the waste water after modifier treatment is promoted to airfloat equipment by pump, the scum silica frost of airfloat equipment to waste water is removed;
Step 4, biochemical treatment: organism remaining in waste water, again through biochemistry treatment, is removed by waste water after scum silica frost process in a large number;
Step 5, qualified discharge: after the water-quality guideline of waste water reaches emission request, then discharge.
As the optimal way of embodiment, described step one also comprise machinery turn sieve process, namely at waste water after grid tiltedly nets process, then carry out machinery turn sieve process.
As the optimal way of embodiment, the airfloat equipment of described step 3 is shallow air-floatation pond.
As the optimal way of embodiment, the biochemistry treatment of described step 4 adopts sequencing batch active sludge, and namely aeration tank and settling tank integrate, and biochemical reaction is in carrying out in batches, and the cycle of operation comprises into water phase, reaction period, precipitation phase and drainage period;
The described water inlet phase, for reactor from water inlet to for some time of reactor maximum volume, on reactor bottom leaves, the active sludge that precipitates of cycle of operation, within the water inlet phase, carries out biochemical reaction simultaneously;
The described reaction period, for the absorption of organics removal, nitrated and phosphorus, then limit water inlet limit aeration, if carry out denitrification, then stop aeration and stir slowly, aeration time is 12 hours; In the reaction period, biochemical reaction gets a desired effect gradually;
The described precipitation phase, stop aeration, mixed solution is remained static, active sludge natural subsidence, mud-water separation, supernatant liquor is the water after process;
Described drainage period, carries out draining to supernatant liquor, until take supernatant liquor lowest water level to, what reactor bottom stayed is active sludge, as the bacterial classification of the next cycle of operation;
The above groundwork cycle is a cycle of operation, constantly to carry out sewage disposal.
As the optimal way of embodiment, the described cycle of operation also comprises lay-up period, and namely after described drainage period, in the period before next batch waste water enters, active sludge carries out endogenous respiration in this stage, and denitrifying bacterium utilizes endogenous carbon to carry out denitrification denitrogenation.
As the optimal way of embodiment, also comprise sludge condensation step, namely to the scum silica frost after the process of described step 3 scum silica frost and described precipitation phase remaining active sludge, be collected in sludge thickener, carry out press filtration with pressure filter, obtain mud cake, and be transported to boiler and coal mixed firing or transport outward landfill.
As the optimal way of embodiment, between described step 4 and described step 5, also comprise reuse pool treatment step, to wastewater reuse up to standard.
As the optimal way of embodiment, described shallow air-floatation pond comprise pond body, scum silica frost tank, overflow weir, every stream circle, water feed apparatus, discharging device, water distribution constant-current stabilizer, scum silica frost treatment unit and drive unit;
Described scum silica frost tank, described overflow weir and described circle every stream are located at body inside, described pond by center to peripheral direction respectively;
Described water feed apparatus comprise connect successively recirculation water import, Rotatable water inlet pipe, flexible joint, water distributor and water distributor outlet, described recirculation water import is arranged on described scum silica frost tank centre bottom, and described water distributor outlet is arranged on described between stream circle and described pond body;
Described discharging device comprises clear water collection tube and clear water output, described clear water collection tube is located at described between stream circle and described pond body, and the water side of described clear water collection tube is communicated with described every stream circle, described clear water output arranges between described overflow weir and described scum silica frost tank;
Described water distribution constant-current stabilizer comprises a point water plate, constant-current stabilizer and rotation water distributing mechanism, and described point of water plate is arranged between the outlet of described water distributor, and described constant-current stabilizer and described rotation water distributing mechanism are separately positioned on the front end of described point water plate;
Described scum silica frost treatment unit comprises scum silica frost collection bucket, the first drive-motor, the outlet of scum silica frost bucket and scum silica frost outlet, described scum silica frost collection bucket is arranged on described between stream circle and described pond body, described first drive-motor is electrically connected with described scum silica frost collection bucket, described scum silica frost bucket outlet is arranged on the top of described scum silica frost tank, and described scum silica frost outlet is arranged on the bottom of described scum silica frost tank;
Described drive unit comprises movable stand and the second drive-motor, and described movable stand one end is fixed on the sidewall of described Rotatable water inlet pipe, and the other end is arranged on the pool wall top of described pond body in a movable manner, and described second drive-motor is connected with described movable stand;
As the optimal way of embodiment, also comprise scraper plate at the bottom of pond and pond bed mud bucket, at the bottom of described pond, scraper plate is arranged on the below of described constant-current stabilizer, and described pond bed mud bucket is arranged on described between stream circle and described pond body.
After the present invention adopts above-mentioned method process waste water, there is following beneficial effect:
1, easily block sump pump containing bulk suspended substance in waste water, the oblique net of grid is set and mechanical rotation sieve can remove bulk suspended substance and waste paper sheet;
2, due to paper waste have water quality and quantity change greatly, discharge uneven, impact by force, by arranging equalizing tank, water quality and the water yield being regulated, to subsequent processing units, there is buffer protection function;
3, air-flotation system: pass into micro bubble intensive in a large number in pending water, it is made to be less than the scum silica frost of water with impurity, the overall proportion of grain formation adhered to one another of wadding a quilt with cotton, thus rely on buoyancy to rise to the water surface, solid, liquid is separated, thus reduces the content of suspension content, COD and BOD in waste water;
4, sequencing batch active sludge (SBR) technique completes continuously into water, aerated reaction, precipitation, draining and the process such as idle in same structures, and operation scheme is flexible, and without sludge bulking problem, anti impulsion load is high; By the degraded of aeration microorganism to organic pollutant, the water outlet of SBR pond reaches emission standard, effluent reuse or discharge;
5, the scum silica frost of air-flotation system and the mud in SBR pond enter sludge thickener, and the mud after dehydration can be used for making the lower paper of quality requirements, delivers to boiler and coal mixed firing or transports outward landfill.
Accompanying drawing explanation
Fig. 1 is the process flow sheet of method of wastewater treatment of the present invention;
Fig. 2 is the structural representation in shallow air-floatation pond of the present invention.
Embodiment
Embodiment 1
As shown in Figure 1, a kind of method of wastewater treatment, comprises the following steps:
Step one, pre-treatment 10: the waste water that paper production line produces, first through the oblique net of grid, filters part fine-fibered material and removes; By arranging the oblique net of grid, the fine-fibered of 20% can be removed;
Step 2, modifier treatment 20: pretreated waste water is from flowing to equalizing tank, and regulating water quality concentration also makes the water yield even;
Step 3, scum silica frost process 30: the waste water after modifier treatment is promoted to airfloat equipment by pump, the scum silica frost of airfloat equipment to waste water is removed;
Step 4, biochemical treatment 40: organism remaining in waste water, again through biochemistry treatment, is removed by waste water after scum silica frost process in a large number;
Step 5, qualified discharge 60: after the water-quality guideline of waste water reaches emission request, then discharge.
As the optimal way of embodiment, described step one also comprise machinery turn sieve process, namely at waste water after grid tiltedly nets process, then carry out machinery turn sieve process.
As the optimal way of embodiment, the airfloat equipment of described step 3 is shallow air-floatation pond.
As the optimal way of embodiment, the biochemistry treatment 40 of described step 4 adopts sequencing batch active sludge (Sequencing Batch Reactor), be called for short SBR, namely aeration tank and settling tank integrate, biochemical reaction is in carrying out in batches, and the cycle of operation comprises into water phase, reaction period, precipitation phase and drainage period;
The described water inlet phase, for reactor from water inlet to for some time of reactor maximum volume, on reactor bottom leaves, the active sludge that precipitates of cycle of operation, within the water inlet phase, carries out biochemical reaction simultaneously;
The described reaction period, for the absorption of organics removal, nitrated and phosphorus, then limit water inlet limit aeration, if carry out denitrification, then stop aeration and stir slowly, aeration time is 12 hours; In the reaction period, biochemical reaction gets a desired effect gradually;
The described precipitation phase, stop aeration, mixed solution is remained static, active sludge natural subsidence, mud-water separation, supernatant liquor is the water after process;
Described drainage period, carries out draining to supernatant liquor, until take supernatant liquor lowest water level to, what reactor bottom stayed is active sludge, as the bacterial classification of the next cycle of operation;
The above groundwork cycle is a cycle of operation, constantly to carry out sewage disposal.
As the optimal way of embodiment, the described cycle of operation also comprises lay-up period, and namely after described drainage period, in the period before next batch waste water enters, active sludge carries out endogenous respiration in this stage, and denitrifying bacterium utilizes endogenous carbon to carry out denitrification denitrogenation.
As the optimal way of embodiment, also comprise sludge condensation step 70, namely to the scum silica frost after the process of described step 3 scum silica frost and described precipitation phase remaining active sludge, be collected in sludge thickener, press filtration is carried out with pressure filter, obtain mud cake, and be transported to boiler and coal mixed firing or transport outward landfill.
As the optimal way of embodiment, between described step 4 and described step 5, also comprise reuse water process 50 step, to wastewater reuse up to standard.
Embodiment 2
As shown in Figure 2, a kind of shallow air-floatation pond, comprise pond body 1, scum silica frost tank 2, overflow weir 3, every stream circle 4, water feed apparatus 5, discharging device 6, water distribution constant-current stabilizer 7, scum silica frost treatment unit 8 and drive unit 9;
Described scum silica frost tank 2, described overflow weir 3 and described to be located at described pond body 1 by center to peripheral direction respectively every stream circle 4 inner;
Described water feed apparatus 5 comprise connect successively recirculation water import 51, Rotatable water inlet pipe 52, flexible joint 53, water distributor 54 and water distributor outlet 55, described recirculation water import 51 is arranged on described scum silica frost tank 2 centre bottom, and described water distributor outlet 55 is arranged on described between stream circle 4 and described pond body 1;
Described discharging device 6 comprises clear water collection tube 61 and clear water output 62, described clear water collection tube 61 is located at described between stream circle 4 and described pond body 1, and the water side of described clear water collection tube 61 is communicated with described every stream circle 4, described clear water output 62 arranges between described overflow weir 3 and described scum silica frost tank 2;
Described water distribution constant-current stabilizer 7 comprises a point water plate 71, constant-current stabilizer 72 and rotation water distributing mechanism 73, described point of water plate 71 is arranged between the outlet of described water distributor 55, and described constant-current stabilizer 72 and described rotation water distributing mechanism 73 are separately positioned on the front end of described point water plate 71; The translational speed of described water distribution constant-current stabilizer 7 is identical with water intake velocity, this creates the terminal " zero velocity ", and water inlet can not produce disturbance to former water like this, carries out under making the sedimentation of particle and being suspended in one " static state " state.
Described scum silica frost treatment unit 8 comprises scum silica frost collection bucket 81, first drive-motor 82, scum silica frost bucket outlet 83 and scum silica frost outlet 84, described scum silica frost collection bucket 81 is arranged on described between stream circle 4 and described pond body 1, described first drive-motor 82 is electrically connected with described scum silica frost collection bucket 81, described scum silica frost bucket outlet 83 is arranged on the top of described scum silica frost tank 2, and described scum silica frost outlet 84 is arranged on the bottom of described scum silica frost tank 2; Described scum silica frost collection bucket 81 is removed for surface scum mud, the scum silica frost collected passes through described scum silica frost bucket outlet drain in static scum silica frost tank by action of gravity, certainly, according to the size of air flotation pool diameter and the thickness of scum silica frost, described scum silica frost collection bucket also can select structure that is a pipeful of or multibuchet respectively;
Described drive unit 9 comprises movable stand 91 and the second drive-motor 92, described movable stand 91 one end is fixed on the sidewall of described Rotatable water inlet pipe 52, the other end is arranged on the pool wall top of described pond body 1 in a movable manner, and described second drive-motor 92 is connected with described movable stand 91;
As the optimal way of embodiment, also comprise scraper plate 11 at the bottom of pond and pond bed mud bucket 12, scraper plate 11 at the bottom of described pond is arranged on the below of described constant-current stabilizer 72, and described pond bed mud bucket 12 is arranged on described between stream circle 4 and described pond body 1; Scraper plate 11 at the bottom of described pond by bottom the body of described pond and wall on sludge scraping collection in bucket, periodic exhaustion.
After adopting shallow air-floatation pond, removal efficiency COD:40-50%, BOD:20-40%, SS: more than 95%, greatly reduce the load of later process, thus greatly reduce cost of investment.
The indices of the sewage after paper mill production line waste water turns sieve+equalizing tank+shallow air-floatation+SBR pond+reuse pool process respectively through the oblique net of grid, machinery all can reach the emission standard of environmental administration's requirement, and concrete removal effect is as table 1:
Table 1 wastewater treatment efficiency
The above, be only present pre-ferred embodiments, therefore can not limit scope of the invention process successively, the equivalence change namely done according to the scope of the claims of the present invention and description with modify, all should still belong in scope that the present invention contains.
Claims (9)
1. a method of wastewater treatment, is characterized in that: comprise the following steps:
Step one, pre-treatment: the waste water that paper production line produces, first through the oblique net of grid, filters part fine-fibered material and removes;
Step 2, modifier treatment: pretreated waste water is from flowing to equalizing tank, and regulating water quality concentration also makes the water yield even;
Step 3, scum silica frost process: the waste water after modifier treatment is promoted to airfloat equipment by pump, the scum silica frost of airfloat equipment to waste water is removed;
Step 4, biochemical treatment: organism remaining in waste water, again through biochemistry treatment, is removed by waste water after scum silica frost process in a large number;
Step 5, qualified discharge: after the water-quality guideline of waste water reaches emission request, then discharge.
2. a kind of method of wastewater treatment as claimed in claim 1, is characterized in that: described step one also comprise machinery turn sieve process, namely at waste water after grid tiltedly nets process, then carry out machinery turn sieve process.
3. a kind of method of wastewater treatment as claimed in claim 1, is characterized in that: the airfloat equipment of described step 3 is shallow air-floatation pond.
4. a kind of method of wastewater treatment as claimed in claim 1, it is characterized in that: the biochemistry treatment of described step 4 adopts sequencing batch active sludge, namely aeration tank and settling tank integrate, biochemical reaction is in carrying out in batches, and the cycle of operation comprises into water phase, reaction period, precipitation phase and drainage period;
The described water inlet phase, for reactor from water inlet to for some time of reactor maximum volume, on reactor bottom leaves, the active sludge that precipitates of cycle of operation, within the water inlet phase, carries out biochemical reaction simultaneously;
The described reaction period, for the absorption of organics removal, nitrated and phosphorus, then limit water inlet limit aeration, if carry out denitrification, then stop aeration and stir slowly, aeration time is 12 hours; In the reaction period, biochemical reaction gets a desired effect gradually;
The described precipitation phase, stop aeration, mixed solution is remained static, active sludge natural subsidence, mud-water separation, supernatant liquor is the water after process;
Described drainage period, carries out draining to supernatant liquor, until take supernatant liquor lowest water level to, what reactor bottom stayed is active sludge, as the bacterial classification of the next cycle of operation;
The above groundwork cycle is a cycle of operation, constantly to carry out sewage disposal.
5. a kind of method of wastewater treatment as claimed in claim 4, it is characterized in that: the described cycle of operation also comprises lay-up period, namely after described drainage period, period before next batch waste water enters, active sludge carries out endogenous respiration in this stage, and denitrifying bacterium utilizes endogenous carbon to carry out denitrification denitrogenation.
6. a kind of method of wastewater treatment as claimed in claim 4, it is characterized in that: also comprise sludge condensation step, namely to the scum silica frost after the process of described step 3 scum silica frost and described precipitation phase remaining active sludge, be collected in sludge thickener, press filtration is carried out with pressure filter, obtain mud cake, and be transported to boiler and coal mixed firing or transport outward landfill.
7. a kind of method of wastewater treatment as claimed in claim 1, is characterized in that: between described step 4 and described step 5, also comprise reuse water treatment step, to wastewater reuse up to standard.
8. a shallow air-floatation pond for method of wastewater treatment as claimed in claim 3, is characterized in that: comprise pond body, scum silica frost tank, overflow weir, every stream circle, water feed apparatus, discharging device, water distribution constant-current stabilizer, scum silica frost treatment unit and drive unit;
Described scum silica frost tank, described overflow weir and described circle every stream are located at body inside, described pond by center to peripheral direction respectively;
Described water feed apparatus comprise connect successively recirculation water import, Rotatable water inlet pipe, flexible joint, water distributor and water distributor outlet, described recirculation water import is arranged on described scum silica frost tank centre bottom, and described water distributor outlet is arranged on described between stream circle and described pond body;
Described discharging device comprises clear water collection tube and clear water output, described clear water collection tube is located at described between stream circle and described pond body, and the water side of described clear water collection tube is communicated with described every stream circle, described clear water output arranges between described overflow weir and described scum silica frost tank;
Described water distribution constant-current stabilizer comprises a point water plate, constant-current stabilizer and rotation water distributing mechanism, and described point of water plate is arranged between the outlet of described water distributor, and described constant-current stabilizer and described rotation water distributing mechanism are separately positioned on the front end of described point water plate;
Described scum silica frost treatment unit comprises scum silica frost collection bucket, the first drive-motor, the outlet of scum silica frost bucket and scum silica frost outlet, described scum silica frost collection bucket is arranged on described between stream circle and described pond body, described first drive-motor is electrically connected with described scum silica frost collection bucket, described scum silica frost bucket outlet is arranged on the top of described scum silica frost tank, and described scum silica frost outlet is arranged on the bottom of described scum silica frost tank;
Described drive unit comprises movable stand and the second drive-motor, and described movable stand one end is fixed on the sidewall of described Rotatable water inlet pipe, and the other end is arranged on the pool wall top of described pond body in a movable manner, and described second drive-motor is connected with described movable stand.
9. a kind of shallow air-floatation pond as claimed in claim 8, is characterized in that: also comprise scraper plate at the bottom of pond and pond bed mud bucket, at the bottom of described pond, scraper plate is arranged on the below of described constant-current stabilizer, and described pond bed mud bucket is arranged on described between stream circle and described pond body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410635241.3A CN104310720A (en) | 2014-11-12 | 2014-11-12 | Method for treating paper-making wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410635241.3A CN104310720A (en) | 2014-11-12 | 2014-11-12 | Method for treating paper-making wastewater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104310720A true CN104310720A (en) | 2015-01-28 |
Family
ID=52366072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410635241.3A Pending CN104310720A (en) | 2014-11-12 | 2014-11-12 | Method for treating paper-making wastewater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104310720A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105084659A (en) * | 2015-08-11 | 2015-11-25 | 浙江惠同纸业有限公司 | Paper mill wastewater treatment technology and treatment equipment thereof |
| CN105858772A (en) * | 2016-04-21 | 2016-08-17 | 山东美洋环保科技有限公司 | Shallow layer gas floating machine |
| CN109140460A (en) * | 2018-07-16 | 2019-01-04 | 黄嘉鑫 | One kind being easy to burn type sewage-treatment plant |
| CN111003847A (en) * | 2019-12-27 | 2020-04-14 | 冯露晨 | Paper pulp wastewater treatment processing method |
| CN112340928A (en) * | 2020-04-03 | 2021-02-09 | 连江明杰信息技术有限公司 | Method for treating papermaking wastewater |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2234434Y (en) * | 1995-04-13 | 1996-09-04 | 邵佩钰 | High-efficiency shallow rotary air floating device |
| CN1631819A (en) * | 2004-12-03 | 2005-06-29 | 天津科技大学 | Process for circulating and reusing wastewater in production of case plank paper by wastepaper |
| JP2007209890A (en) * | 2006-02-09 | 2007-08-23 | Kurita Water Ind Ltd | Treatment method and apparatus for organic wastewater |
| CN101231510A (en) * | 2008-02-05 | 2008-07-30 | 南京大学 | Control apparatus and method for maintaining automatic operation of SBR reactor |
| CN102079553A (en) * | 2010-12-02 | 2011-06-01 | 广州益方田园环保科技开发有限公司 | Shallow layer flotation machine for industrial wastewater treatment and treatment process thereof |
| CN103739139A (en) * | 2013-11-15 | 2014-04-23 | 安徽省绿巨人环境技术有限公司 | Corrugated medium pulping wastewater treatment technology |
-
2014
- 2014-11-12 CN CN201410635241.3A patent/CN104310720A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2234434Y (en) * | 1995-04-13 | 1996-09-04 | 邵佩钰 | High-efficiency shallow rotary air floating device |
| CN1631819A (en) * | 2004-12-03 | 2005-06-29 | 天津科技大学 | Process for circulating and reusing wastewater in production of case plank paper by wastepaper |
| JP2007209890A (en) * | 2006-02-09 | 2007-08-23 | Kurita Water Ind Ltd | Treatment method and apparatus for organic wastewater |
| CN101231510A (en) * | 2008-02-05 | 2008-07-30 | 南京大学 | Control apparatus and method for maintaining automatic operation of SBR reactor |
| CN102079553A (en) * | 2010-12-02 | 2011-06-01 | 广州益方田园环保科技开发有限公司 | Shallow layer flotation machine for industrial wastewater treatment and treatment process thereof |
| CN103739139A (en) * | 2013-11-15 | 2014-04-23 | 安徽省绿巨人环境技术有限公司 | Corrugated medium pulping wastewater treatment technology |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105084659A (en) * | 2015-08-11 | 2015-11-25 | 浙江惠同纸业有限公司 | Paper mill wastewater treatment technology and treatment equipment thereof |
| CN105858772A (en) * | 2016-04-21 | 2016-08-17 | 山东美洋环保科技有限公司 | Shallow layer gas floating machine |
| CN109140460A (en) * | 2018-07-16 | 2019-01-04 | 黄嘉鑫 | One kind being easy to burn type sewage-treatment plant |
| CN111003847A (en) * | 2019-12-27 | 2020-04-14 | 冯露晨 | Paper pulp wastewater treatment processing method |
| CN111003847B (en) * | 2019-12-27 | 2022-04-08 | 贵州赤天化纸业股份有限公司 | Paper pulp wastewater treatment processing method |
| CN112340928A (en) * | 2020-04-03 | 2021-02-09 | 连江明杰信息技术有限公司 | Method for treating papermaking wastewater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103204605B (en) | Method for treating garlic processing waste water | |
| CN101708916B (en) | Closed circulation and zero emission processes for papermaking wastewater | |
| CN104310720A (en) | Method for treating paper-making wastewater | |
| CN201062224Y (en) | Sewage water treatment system for refining cotton | |
| CN103739139B (en) | Corrugated medium pulping wastewater treatment technology | |
| CN103553274B (en) | Treatment process of industrial wastewater of medium density fiber | |
| CN102167490A (en) | Integrated treatment method for thickening, drying and purifying municipal sludge | |
| CN103626358A (en) | Method for treating biodiesel wastewater | |
| CN201746432U (en) | Apparatus for strengthening treatment of coking waste water | |
| CN103043789A (en) | Anaerobic reactor and treatment method of cotton pulp production waste water | |
| CN110590082A (en) | Textile sewage treatment method | |
| CN102515395A (en) | Method and device for using small-aperture spiral wound ultrafiltration membranes to treat papermaking wastewater | |
| CN106116023A (en) | A kind of method of work of Waste Water Treatment | |
| KR101300466B1 (en) | Apparatus for wastewater treatment and method for phosphorus removal from wastewater | |
| CN103964653B (en) | A kind of waste water of paper mill recovery processing technique | |
| CN202175601U (en) | Papermaking sewage treatment system | |
| CN205275413U (en) | A effluent treatment plant for in wall paper production | |
| CN102351364A (en) | Treatment method of wood chip washing waste water | |
| CN110255824A (en) | A kind of pulping wastewater treatment method and system | |
| CN208136048U (en) | A kind of vegetables juicing waste water treatment system | |
| KR101156021B1 (en) | Processing apparatus for wastewater treatment | |
| CN210764846U (en) | Papermaking wastewater treatment system | |
| CN111252994A (en) | Domestic fungus wastewater treatment method | |
| CN101125722A (en) | Grog paper-making waste water physicochemical circulation biochemical treatment zero discharging technique | |
| CN205258241U (en) | Printing and dyeing wastewater treatment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150128 |