CN105016559B - A kind of preprocess method of waste water of paper mill - Google Patents
A kind of preprocess method of waste water of paper mill Download PDFInfo
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- CN105016559B CN105016559B CN201510506376.4A CN201510506376A CN105016559B CN 105016559 B CN105016559 B CN 105016559B CN 201510506376 A CN201510506376 A CN 201510506376A CN 105016559 B CN105016559 B CN 105016559B
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Abstract
The invention discloses a kind of preprocess method of waste water of paper mill, waste water sequentially passes through regulation collecting-tank, grid, setting pot, physical filtering pond, ice foot, electromagnetic adsorption pond, flotation tank.The preprocess method of the present invention adopts low-energy-consumptienvironment-friendlyhigh-precision environment-friendlyhigh-precision ice foot equipment, and which still belongs to the first time in being applied to paper-making effluent treating process, obvious to the removal effect of the difficult Organic substance for removing exclusive in paper waste and small solid float, adds without chemical reagent.In paper waste by this method process, the clearance of float reaches 98.1%, chroma removal rate 95.1%, turbidity removal rate 98.8%.
Description
Technical field
The present invention relates to a kind of preprocess method of waste water of paper mill, belongs to the water treatment field in environmental conservation.
Background technology
With economic continuous development, the continuous improvement of living standard, protection of the people to environment are increasingly paid attention to, according to having
Pass data shows that the annual quantity of wastewater effluent of China is about 3.9t, and with 1% increasing rate.China is papermaking rich and influential family, papermaking
Wastewater discharge is big.At present, there are large, medium and small more than 10000 family of paper mill sum, year waste discharge amount up to more than 40 hundred million m in China3,
1/6th of national waste water total release are accounted for, more than 200 ten thousand tons of the BOD annual emissions in paper waste account for national waste water and always arrange
Put the 25% of middle BOD.
Paper industry is that energy consumption, material consumption are high, one of serious industry of environmental pollution, and its polluting property is wastewater discharge
Greatly, wherein COD, float（SS）Content is high, and colourity is serious.The large-scale papermaking enterprise of most domestic has wastewater treatment and sets at present
Apply, but have without directly discharge or below standard discharge is processed, some small-sized paper mills are basic with regard to no wastewater treatment
Facility, waste water are directly discharged into periphery river, cause to surrounding enviroment and have a strong impact on.Thus the sustainable of paper industry is realized
Development, it is necessary to the pollution problem of comprehensively solve paper industry.The processing system of paper waste is a lot, is summed up
The combination of facture, method of chemical treatment, biological treatment and these three systems.In paper waste, float, turbidity, colourity are
Three kinds of topmost contamination indexs, and three kinds of contamination index's numerical value are very high, are the main targets of pulping wastewater treatment, and it is difficult
Point is located.
The content of the invention
For the deficiencies in the prior art, the invention provides a kind of preprocess method of waste water of paper mill, papermaking
The bright ditches of factory production waste water Jing are flowed into and adjust collecting-tank, arrange grid, with thick float of damming in bright ditch；Then waste water stream
Enter setting pot, filter out the float such as silt in waste water；Waste water flows into physics filtering ponds by pipeline from setting pot, through thing
The mixing media filtration being made up of Folium Pterocaryae, useless Folium Camelliae sinensis, Cortex walnut, pomelo peel filled in reason filtering ponds, goes tiny in eliminating water
Pectin, the float such as micelle, then flow into ice foot equipment；The external refrigerator of ice foot equipment, is spaced on ice foot equipment two side
Fixed some wedge shape ice foot bars, wedge shape inclination angle is 15 degree, and face of slope is provided with eyelet, eye diameter 0.3cm, each hole
Interorbital space 1cm, can be filled with the water of 1t in every ice foot bar, ice foot equipment is freezed by refrigerator, by the temperature in ice foot equipment
Subzero 2-10 DEG C is reduced to, makes the instant water in ice foot bar be changed into ice, ice is separated out by the eyelet on inclined-plane, forms icicle, convection current
The waste water Jing rows crossed are filtered, and some Organic substances can be freezed with icicle at low temperature, can remove difficult removal in waste water by icicle
Float and organic pollution, then waste water flow into electromagnetic adsorption pond；Electromagnetic adsorption pond is divided into low-voltage region, middle voltage zone
Domain, high-voltage region totally three parts, waste water flow into electromagnetic adsorption pond from low-voltage region, flow through middle voltage regime, from high electricity
Intermediate pressure section flows out electromagnetic adsorption pond, and low-voltage region electrode voltage is set to 5v, and middle voltage regime electrode voltage is set to 20v, high electricity
Intermediate pressure section electrode voltage is set to 50v, the electrostatic produced by electrode, and the things such as the fiber for removing, hemicellulose are difficult in adsorbing water
Matter；Waste water is squeezed into into flotation tank with pump after process, subsequent processing device is flowed into after aeration decomposing organic matter in pond.
Setting pot selects aerated grit chamber.
Ice foot equipment inner wall is provided with thermal insulation coat.
Fixed wedge shape ice foot bar quantity is spaced on ice foot equipment two side for 4-10 roots.
It is an advantage of the current invention that：
（1）This physical absorption processing method without any chemical reagent, do not adopt any bioremediation, do not induce one
Sludge, strain, it is to avoid the secondary pollution of water body, reduce the difficulty and disposed of in its entirety cost of subsequent treatment, simple to operate.
（2）This physical absorption processing method adopts low-energy-consumptienvironment-friendlyhigh-precision environment-friendlyhigh-precision ice foot equipment, and which is applied to pulping wastewater treatment work
Still belong to the first time in skill, serve innovation effect, to the difficult Organic substance for removing exclusive in paper waste and small solid float
Removal effect substantially, and equipment investment cost is little, simple structure, adds without chemical reagent, and inside is can be recycled with water, nothing
Need to process, easy to operate, practical rate is high, full automation process.
（3）In paper waste by this method process, the clearance of float reaches 98.1%, chroma removal rate
95.1%, turbidity removal rate 98.8%.
（4）Sludge reduces 4/5, significantly reduces enterprise Treatment of Sludge burden, and substantially avoided that sludge brings is secondary
Pollution problem.In addition, the output investment ratio conventional activated sludge process of the technology saves 20%, take up an area and save 30%, operating cost is saved
10%, thus centering small paper mill is more with practical value.
（5）Advanced technology, maturation, it is adaptable to change of water quality, it is stable, can guarantee that effluent quality reaches factory
Using the requirement of standard and national wastewater discharge standard.Capital expenditure and operating cost are reduced, floor space is saved and is reduced energy
Consumption.Easily operated, flexible operation and be easy to management.It is easily achieved and automatically controls, improves operation management level.At utmost reduce
Harmful effect to surrounding（Abnormal smells from the patient, noise, aerosol etc.）.
Description of the drawings
Fig. 1 is the preprocess method schematic diagram of waste water of paper mill.
1- grids, 2- adjust collecting-tank, 3- setting pots, 4- physical filterings pond, 5- ice foot equipment, 6- electromagnetic adsorptions pond, 7-
Flotation tank.
Fig. 2 is the schematic diagram of ice foot equipment.
52- refrigerators, 53- ice foot bars, 54- effusion meters, 55- piezometers, 56- level indicators, 57- thermometeies.
Specific embodiment
A kind of as shown in Figure 1 preprocess method of waste water of paper mill, the processing system for being used include adjusting collecting-tank 1,
Grid 2, setting pot 3, physical filtering pond 4, ice foot equipment 5, electromagnetic adsorption pond 6, flotation tank 7.Papermaking factory production waste water row's mouth leads to
Piping connection adjusts the water inlet of collecting-tank 1, and the outlet for adjusting collecting-tank 1 connects the water inlet of grid 2, lattice by pipeline
The outlet of grid 2 connects the water inlet of setting pot 3 by pipeline, and the outlet of setting pot 3 connects physics filtering ponds 4 by pipeline
Water inlet, the outlet in physical filtering pond 4 connects the water inlet of ice foot 5 by pipeline, and the outlet of ice foot 5 is by pipeline company
The water inlet in electromagnetic adsorption pond 6 is connect, the outlet in electromagnetic adsorption pond 6 connects the water inlet of flotation tank 7, flotation tank 7 by pipeline
Outlet by pipeline connect subsequent processing device water inlet.In physical filtering pond 4 filtrate using Folium Pterocaryae, useless Folium Camelliae sinensis,
Cortex walnut and pomelo peel mixing, four mass ratios are 3:2:3:5, filtrate accounts for thing by multiple gauze encapsulations, filtrate cumulative volume
The 1/3-1/2 of reason filtering ponds.6 points of electromagnetic adsorption pond is three parts, low-voltage region, middle voltage regime, high-voltage region, often
Individual region is provided with valve, and waste water flows into electromagnetic adsorption pond 6 from low-voltage region, flows through middle voltage regime, from high-voltage region stream
Go out electromagnetic adsorption pond 6, in voltage adsorption tank 6, access 220v power supplys, built-in stainless steel electrode, electrode are furnished with resistance, between electrode
Interval 20cm.5 external refrigerator 52 of ice foot equipment, is spaced fixed some wedge shape ice foot bars 53, wedge on ice foot equipment two side
Shape inclination angle is 15 degree, and face of slope is provided with eyelet, eye diameter 0.3cm, each perforated interval 5cm, in every ice foot bar
The water of 1t, and ice foot equipment internal thermometer 57, effusion meter 54, piezometer 55, level indicator 56, ice foot equipment can be filled with
Interior temperature is subzero 2-10 DEG C.The bright ditches of plant effluent Jing arrange grid 2, to dam in bright ditch from regulation collecting-tank 1 is flowed into
Thick float；Then waste water flows into setting pot 3, and setting pot 3 selects aerated grit chamber, filters out silt in waste water etc. and hangs
Float；Waste water flows into physics filtering ponds 4 by pipeline from after the outflow of setting pot 3, through the mixing filtrate of Folium Pterocaryae and useless Folium Camelliae sinensis
Filter, go the float such as pectin tiny in eliminating water, micelle, flow into ice foot equipment 5；Ice foot equipment 5 is freezed by refrigerator 52,
Temperature in 5 equipment of ice foot will be subzero 2-10 DEG C, make the instant water in ice foot bar be changed into ice, and ice is analysed by the eyelet on inclined-plane
Go out, form icicle, the waste water Jing rows to flowing down are filtered, and at low temperature, some Organic substances can be freezed with icicle, can be gone by icicle
Except the difficult float for removing and organic pollution in waste water, then waste water flows into electromagnetic adsorption pond 6；It is low in Jing electromagnetic adsorptions pond 6
Voltage regime electrode voltage is set to 5v, and middle voltage regime electrode voltage is set to 20v, and high-voltage region electrode voltage is set to 50v, electricity
Magnetic suck pond pool wall is cement structures, and is brushed with coatings, the electrostatic produced by electrode, and the fibre for removing is difficult in adsorbing water
The materials such as dimension, hemicellulose so as to adsorbed by electrode by electrostatic interaction；Waste water is squeezed into flotation tank by processed waste water pump
7, subsequent processing device is flowed into after aeration decomposing organic matter in pond.
Claims (4)
1. a kind of preprocess method of waste water of paper mill, it is characterised in that the bright ditches of papermaking factory production waste water Jing flow into regulation and catchment
Pond, arranges grid, in bright ditch with thick float of damming；Then waste water flows into setting pot, filters out the silt in waste water；
Waste water flows into physics filtering ponds by pipeline from setting pot, fill in physical filtering pond by Folium Pterocaryae, useless Folium Camelliae sinensis, Semen Juglandiss
The mixing media filtration of skin, pomelo peel composition, four mass ratios are 3:2:3:5, filtrate is by multiple gauze encapsulations, filtrate
Cumulative volume accounts for the 1/3-1/2 in physical filtering pond, removes pectin tiny in eliminating water, micelle, then flows into ice foot equipment；Ice foot sets
Standby external refrigerator, is spaced fixed some wedge shape ice foot bars on ice foot equipment two side, wedge shape inclination angle is 15 degree, is inclined
Domatic to be provided with eyelet, eye diameter 0.3cm, each perforated interval 1cm can be filled with the water of 1t in every ice foot bar, ice foot sets
It is standby that the temperature in ice foot equipment is reduced to into subzero 2-10 DEG C by refrigerator refrigeration, make the instant water in ice foot bar be changed into ice,
Ice is separated out by the eyelet on inclined-plane, forms icicle, and the waste water Jing rows to flowing through are filtered, at low temperature some Organic substance meetings and ice
Post freezes, and can remove the difficult float for removing and organic pollution in waste water by icicle, and then waste water flows into electromagnetic adsorption pond；
Electromagnetic adsorption pond is divided into low-voltage region, middle voltage regime, and high-voltage region totally three parts, waste water are flowed into from low-voltage region
Electromagnetic adsorption pond, flows through middle voltage regime, flows out electromagnetic adsorption pond from high-voltage region, and low-voltage region electrode voltage is set to
5v, middle voltage regime electrode voltage are set to 20v, and high-voltage region electrode voltage is set to 50v, the electrostatic produced by electrode,
The fiber for removing, hemicellulose material are difficult in absorption water；Waste water is squeezed into into flotation tank with pump after process, aeration decomposes in pond
Subsequent processing device is flowed into after Organic substance.
2. the preprocess method of the waste water of paper mill according to claim 1, it is characterised in that setting pot selects aeration to sink
Sand pond.
3. the preprocess method of the waste water of paper mill according to claim 1, it is characterised in that ice foot equipment inner wall is provided with
Thermal insulation coat.
4. the preprocess method of the waste water of paper mill according to claim 1, it is characterised in that on ice foot equipment two side
The fixed wedge shape ice foot bar quantity in interval is 4-10 roots.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510506376.4A CN105016559B (en) | 2015-08-18 | 2015-08-18 | A kind of preprocess method of waste water of paper mill |
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| CN201510506376.4A CN105016559B (en) | 2015-08-18 | 2015-08-18 | A kind of preprocess method of waste water of paper mill |
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| CN105016559A CN105016559A (en) | 2015-11-04 |
| CN105016559B true CN105016559B (en) | 2017-04-05 |
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| CN106986454B (en) * | 2017-04-24 | 2020-03-27 | 浙江海洋大学 | Method for treating low-C/N-ratio micro-polluted eutrophic water body by synchronous nitrification and denitrification |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101993168A (en) * | 2009-08-28 | 2011-03-30 | 王慧怡 | Meat processing waste water treatment process |
| CN102502990A (en) * | 2011-11-03 | 2012-06-20 | 天津市澧沛佳海水娱乐工程有限公司 | System and method for treating wastewater in serious contamination industry |
| WO2014005216A1 (en) * | 2012-07-03 | 2014-01-09 | Veolia Water Solutions & Technologies Support | Metalloid contaminated water solution purification process for safe human consumption-rated reduction of contaminant concentration therein, by precipitation without oxidation |
| CN105060626A (en) * | 2015-08-03 | 2015-11-18 | 富阳鸿祥技术服务有限公司 | Paper mill production wastewater treatment method |
-
2015
- 2015-08-18 CN CN201510506376.4A patent/CN105016559B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101993168A (en) * | 2009-08-28 | 2011-03-30 | 王慧怡 | Meat processing waste water treatment process |
| CN102502990A (en) * | 2011-11-03 | 2012-06-20 | 天津市澧沛佳海水娱乐工程有限公司 | System and method for treating wastewater in serious contamination industry |
| WO2014005216A1 (en) * | 2012-07-03 | 2014-01-09 | Veolia Water Solutions & Technologies Support | Metalloid contaminated water solution purification process for safe human consumption-rated reduction of contaminant concentration therein, by precipitation without oxidation |
| CN105060626A (en) * | 2015-08-03 | 2015-11-18 | 富阳鸿祥技术服务有限公司 | Paper mill production wastewater treatment method |
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Inventor after: Ji Yao Inventor after: Cheng Zhangjianing Inventor before: Ye Cheng |
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Effective date of registration: 20170307 Address after: Xikang Road, Gulou District of Nanjing city in Jiangsu province 210024 District No. 3 Building 4 room 103 Applicant after: Ji Yao Address before: Ma Shi Jie, Shangcheng District in Hangzhou city Zhejiang province 310012 155 unit 2, Room 401 Applicant before: Hangzhou Qi Cheng Science and Technology Ltd. |
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Effective date of registration: 20191028 Address after: 314500 Guangming Road, Tongxiang Economic Development Zone, Jiaxing City, Zhejiang Province Patentee after: Tongxiang Hengyi Paper Plastic Co., Ltd. Address before: Xikang Road, Gulou District of Nanjing city in Jiangsu province 210024 District No. 3 Building 4 room 103 Patentee before: Qu Yao |