CN205313328U - Variety printing and dyeing wastewater's wind path processing system - Google Patents

Abstract

The utility model discloses a variety printing and dyeing wastewater's wind path processing system, including the aeration equalizing basin that connects gradually, first air supporting pond, add medicament pond, just sink the pond, transfer alkali pond, the pond of hydrolysising, biochemical pond, it discharges the pond to sink pond and retrieval and utilization eventually, includes still that two sink pond, cracking reactor and second air supporting ponds, two heavy ponds are connected in biochemical pond, and cracking reactor are connected in two heavy ponds, and cracking reactor connects second air supporting pond, and whole heavy pond is connected in second air supporting pond, still includes schizolysis air -blower, biochemical pond air -blower and the pond air -blower of hydrolysising, schizolysis blower connection cracking reactor, and the biochemical pond of biochemical pond blower connection, the pond air -blower of hydrolysising is connected the aeration equalizing basin respectively and is hydrolysised the pond. The beneficial effects of the utility model are that: adopted this system to handle the back to printing and dyeing sewage, the final waste water that not only produces is few, can retrieve to most waste water and mud moreover and recycle, has reached energy saving and emission reduction's effect.

Description

The wind path of one species diversity dyeing waste water processes system

Technical field

This utility model relates to a kind of Waste Water Treatment, and the wind path particularly relating to a species diversity dyeing waste water processes system.

Background technology

Dyeing waste water refers to cotton, hair, the natural fibers such as chemical fibre and chemical fibre textile product are in drift refining, dyeing, produced waste water in stamp and arrangement process, dyeing is industrial wastewater discharge rich and influential family, it is big that dyeing waste water has the water yield, organic pollution content is high, colourity is deep, alkalescence is big, the features such as change of water quality, belong to intractable industrial wastewater, the printing and dyeing industry dyestuff owing to using, auxiliary agent is different, the dyeing waste water of each factory discharge is mainly dyeing waste-water and washes and part alkali decrement waste water, it it is typical dyeing waste water advanced treating project, its Central Plains water COD is about 2000mg/L, BOD is about 500mg/L, B/C about 0.25. rule of thumb analyzing, COD composition therein is mainly dye molecule and middle high molecular chemical fibre slurry, owing to this type of molecular weight of material is higher, it is impossible to being removed by biochemical mode, so causing this waste water B/C relatively low, belonging to the dyeing waste water of the difficult biochemistry of comparison. therefore a kind of Waste Water Treatment that can process this kind of composition diversity dyeing waste water it is badly in need of.

Utility model content

This utility model provides the wind path of a species diversity dyeing waste water to process system, solves above-mentioned Problems existing.

This utility model is to be realized by following technical scheme:

The wind path of one species diversity dyeing waste water processes system, including the aerating regulation pond being sequentially connected with, first flotation tank, dosing pond, preliminary sedimentation tank, alkali tune pond, hydrolytic tank, biochemistry pool, final deposition pool and reuse discharge pond, it is characterized in that, also include second pond, cracking reactor and the second flotation tank, described biochemistry pool connects second pond, second pond connects cracking reactor, cracking reactor connects the second flotation tank, second flotation tank connects final deposition pool, also include cracking aerator, biochemistry pool aerator and hydrolytic tank aerator, described cracking aerator connects cracking reactor, described biochemistry pool aerator connects biochemistry pool, described hydrolytic tank aerator connects aerating regulation pond and hydrolytic tank respectively.

The wind path of an above-mentioned species diversity dyeing waste water processes system, it is characterised in that also including sludge-tank and pressure mud machine, the sewage draining exit of described first flotation tank, preliminary sedimentation tank, second pond and the second flotation tank is all connected with sludge-tank, and described sludge-tank connects pressure mud machine.

The wind path of an above-mentioned species diversity dyeing waste water processes system, it is characterised in that also include sandfiltration pot, and the sewage draining exit in described reuse discharge pond connects sandfiltration pot.

The beneficial effects of the utility model are: have employed after dyeing and printing sewage processes by native system, the final waste water not only produced is few, and can be recycled recycling for most waste water and mud, has reached the effect of energy-saving and emission-reduction.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Detailed description of the invention

Below in conjunction with embodiment, this utility model is described further.

Referring to Fig. 1, the wind path of one species diversity dyeing waste water processes system, pond 190 is discharged including aerating regulation pond the 110, first flotation tank 120 being sequentially connected with, dosing pond 130, preliminary sedimentation tank 140, alkali tune pond 150, hydrolytic tank 160, biochemistry pool 170, final deposition pool 180 and reuse, also include second pond 210, cracking reactor 220 and the second flotation tank 230, biochemistry pool 170 connects second pond 210, second pond 210 connects cracking reactor 220, cracking reactor 220 connects the second flotation tank 230, and the second flotation tank 230 connects final deposition pool 180.

First flotation tank 120 and dosing pond 130 all include the chemicals feeder 121 for adding medicament; Alkali tune pond 150 includes and adds alkali machine 151 for what add alkali liquor, pipeline between cracking reactor 220 and the second flotation tank 230 is additionally provided with and adds alkali machine 231 for what add alkali liquor, the acid adding machine 221 for adding acid solution it is provided with between cracking reactor 220 and second pond 210, cracking reactor 220 includes the catalytic machine 223 for adding catalyst and for adding the acid adding machine 222 of acid solution, and the second flotation tank 230 includes the PAM adding machine 232 for adding polyacrylamide.

Also include cracking aerator 310, biochemistry pool aerator 320 and hydrolytic tank aerator 330, cracking aerator 310 connects cracking reactor 220, biochemistry pool aerator 320 connects biochemistry pool 170, and hydrolytic tank aerator 330 connects aerating regulation pond 110 and hydrolytic tank 160 respectively.

Also including sludge-tank 410 and pressure mud machine 420, the sewage draining exit of the first flotation tank 120, preliminary sedimentation tank 140, second pond 210 and the second flotation tank 230 is all connected with sludge-tank 410, and sludge-tank 410 connects pressure mud machine 420.

Also including sandfiltration pot 500, the sewage draining exit in reuse discharge pond 190 connects sandfiltration pot 500.

And wherein, first flotation tank 120 and the second flotation tank 230 adopt air-flotation process method to carry out air-flotation process, air-flotation process method is exactly logical people's air in waste water, and precipitate out from water with micro-bubble form and to become carrier, the polluters such as the oil emulsion in waste water, small particle are made to stick on bubble, float to the water surface with bubble, form foam one gas and water, granule (oil) three-phase mixture, reach to separate impurity, purify the purpose of waste water by collecting foam or scum silica frost. Floatation is mainly used to process the small particle that the oil emulsion leaning on natural subsidence or floating to be difficult to remove in waste water or relative density are close to 1.

Owing in water-purifying process, the sedimentation method have been continued to use for many years, people select By Bubble-floating Method naturally to compare with the sedimentation method. In fact, two kinds of methods differ from one another, and its technical economic analysis is as follows:

Dissolved air flotation should be adopted for light easily floating impurity; The sedimentation method should be adopted for closely knit heavy impurity. Usually by the flco formed after dispensing, hybrid reaction, when ascent rate is faster than precipitation, then select By Bubble-floating Method as well. Because By Bubble-floating Method floor space little (being only the 1/8 1 1/2 of the sedimentation method), pool volume is also little (being only the 1/8-1/4 of the sedimentation method), after process, effluent quality is good, not only turbidity and SS is low and dissolved oxygen high, the mud that the scum silica frost moisture content of discharge is discharged well below the sedimentation method. General sludge volume ratio is for 1/10-1/2, and this gives processing further and dispose and both having brought bigger convenience of mud, has saved again expense. Some waste water, simultaneously containing the impurity that can sink, can float, is used alone air supporting or sedimentation effect is all undesirable. Now precipitation can be combined with air supporting, play respective advantage, not only can improve treatment effect, and reduce investment outlay and operating cost.

Production practices show, flotation tank not only except color, go turbid on be better than sedimentation tank, and all show extremely unique advantage in reducing the COD of contaminant water, lignin and extraction oxygen etc., its cost is also low than horizontal sedimentation tank, tube settler, waterpower or mechanical accelerating purifying pool, and its operating cost is also lower slightly.

What hydrolytic tank 160 adopted is that hydrolysis acidification method is hydrolyzed, and hydrolysis acidification method is a kind of method between aerobic and anaerobic treatment method, and other process combination can reduce processing cost and improve treatment effeciency. Hydrolysis acidification technique is different from the hydrolysis acid-producing bacteria speed of growth according to methanogen, anaerobic treatment is controlled in shorter the first and second stage of anaerobic treatment in response time, namely it is dissolved organic matter by insoluble hydrolysis of organic matter under a large amount of hydrolytic bacterias, acidifying bacterium effect, the macromolecular substances of difficult for biological degradation is converted into the process of the small-molecule substance of easily biological-degradable, thus improving the biodegradability of waste water, establish good basis for subsequent treatment.

The biochemical reaction be hydrolyzed before referring to Organic substance entrance microbial cell, carrying out outside born of the same parents. Microorganism completes biocatalytic reaction by discharging free enzyme outside born of the same parents or the immobilized enzyme that is connected on mantle.

Acidifying is the sweat of a quasi-representative, and the metabolite of microorganism is mainly various organic acid.

From mechanism, hydrolysis and acidifying are two stages of anaerobic digestion process, but the processing intent of different technique hydrolysis acidifications is different. Hydrolysis in hydrolysis acidification-aerobic biological treatment process is primarily intended to and the non-solubility Organic substance in original waste water is changed into dissolved organic matter, particularly industrial wastewater, the main Organic substance that the Organic substance of wherein difficult for biological degradation is changed into easily biological-degradable, improve the biodegradability of waste water, be beneficial to follow-up Aerobic Process for Treatment. Considering the energy consumption problem of follow-up Aerobic Process for Treatment, hydrolysis is mainly used in the pretreatment of low concentration used water difficult to degradate.

The ultimate principle of cracking reactor 220 is: based on the band theory of N-type semiconductor, makes a kind of sensitization oxidizing process of sensitizer with N-type semiconductor. When sensitizer energy is more than energy gap, electronics is excited, and forbidden band of jumping over enters conduction band, then produce corresponding electron-hole in valence band, thus initiation reaction. Catalytic oxidation in aqueous solution, the electronics lost at semiconductor surface is mainly hydrone, and hydrone produces the extremely strong hydroxyl radical free radical OH of oxidability after a series of changes, aoxidizes various Organic substance, and so as to mineralising is CO₂

Cracking processes general dynamics equation and describes:

R reaction rate;

Ce reactant concentration; The apparent adsorption equilibrium costant of K;

H betides the reaction-rate constant of sensitizer surface activity position.

If adding H₂O₂、KBrO₃Deng strong oxidizer, it is possible to suppress electron-hole compound, it is possible to improve oxidation rate. Specific catalyst surface is supported your genus highly active or metal-oxide, such as Ag, Au, Pt, Pd etc., it is possible to eliminate the electronics in semiconductor tape, be conducive to exciting electronics to migrate to outside, effectively prevent electron-hole simple composite, Pt/TiO₂Catalytic degradation Organic substance speed 4.5～6 times can be improved, pt is downloaded to TiO₂The activity of degraded dichloro-benzenes improves 30%, but the carrying capacity such as Pt, Pd are too much, then be likely to serve as the complex centre of electron-hole, reduces TiO₂Catalytic, both there were certain metal or metal-oxide the best carrying capacity in every kind of semiconductor catalyst face.

Catalytic oxidation with N-type semiconductor for catalyst, various catalyst activities order: TiO₂>ZnO>WO₃。TiO₂It is conventional catalyst, mainly has anatase titanium dioxide and rutile-type crystal formation. TiO₂Chemical property, photochemistry property is sufficiently stable, nontoxic inexpensive, ample supply and prompt delivery. TiO₂Being a kind of conductor oxidate, it has the conduction band of the valence band of full electronics and electron deficiency, and the hole stayed on energy level excited state valence band is oxidizing, and the electronics tool reproducibility on conduction band, degradation product is at TiO₂Surface occurs after oxidoreduction, and valence band is got back electronics, electronics generation transition in valence band, therefore by used TiO₂By reducing, reuse, do not affect its catalysis domestic animal alive. At present we when many printing and dyeing enterprises carry out production application achieve good effect, water outlet COD can stably at about 30mg/L

The feature of cracking reactor 220

1: process system has bigger motility, to adapt to the change of waste water quality, the water yield

2: management and maintenance is convenient, it is to avoid produce secondary pollution.

3: automaticity is high, VXI system bus controls simulation.

4: floor space is little.

5: mud generation amount is little.

6: non-secondary pollution, after wastewater treatment, water quality is as clear as crystal, COD_cr、BOD₅Average index is low.

The workflow in water route under duty:

Workshop Production waste water enters aerating regulation pond 110, is promoted to the first flotation tank 120 through pump. First flotation tank 120 water outlet drains into dosing pond 130 and preliminary sedimentation tank 140, and supernatants after precipitation enters alkali tune pond 150, then is squeezed into hydrolytic tank 160 by pump, is improved the biodegradability of waste water by hydrolysis acidification effect. Hydrolysis acidification water outlet enters biochemistry pool 170, and biochemistry pool 170 water outlet enters second pond 210, and second pond 210 sludge reflux after precipitation is to biochemistry pool 170, and supernatant enters cracking reactor 220. Cracking reactor 220 water outlet enters the second flotation tank 230, and the second flotation tank 230 water outlet enters final deposition pool 180, and the water in reuse discharge pond 190 can be extracted from final deposition pool 180 by pump, and all the other drain into floss hole qualified discharge.

The workflow of road:

The mud of first flotation tank the 120, second flotation tank 230, preliminary sedimentation tank 140 and second pond 210 drains into sludge-tank 410 respectively, then carries out processed (utilize pressure mud room) with pumping into pressure mud machine 420.

Gas circuit explanation

The supply of cracking reactor 220 is provided by cracking aerator 310, and the supply of biochemistry pool 170 is provided by biochemistry pool aerator 320, and the supply of hydrolytic tank 160 and adjustment Aeration tank 110 is provided by hydrolytic tank aerator 330.

The beneficial effects of the utility model are: have employed after dyeing and printing sewage processes by native system, the final waste water not only produced is few, and can be recycled recycling for most waste water and mud, has reached the effect of energy-saving and emission-reduction.

Of the present utility model ultimate principle, principal character and of the present utility model advantage have more than been shown and described. Skilled person will appreciate that of the industry; this utility model is not restricted to the described embodiments; simply principle of the present utility model described in above-described embodiment and description; under the premise without departing from this utility model spirit and scope, this utility model also has various changes and modifications, and these changes and improvements both fall within claimed scope of the present utility model. The protection domain that this utility model requires is defined by appending claims and equivalent thereof.

Claims (3)

1. the wind path of a species diversity dyeing waste water processes system, including the aerating regulation pond being sequentially connected with, first flotation tank, dosing pond, preliminary sedimentation tank, alkali tune pond, hydrolytic tank, biochemistry pool, final deposition pool and reuse discharge pond, it is characterized in that, also include second pond, cracking reactor and the second flotation tank, described biochemistry pool connects second pond, second pond connects cracking reactor, cracking reactor connects the second flotation tank, second flotation tank connects final deposition pool, also include cracking aerator, biochemistry pool aerator and hydrolytic tank aerator, described cracking aerator connects cracking reactor, described biochemistry pool aerator connects biochemistry pool, described hydrolytic tank aerator connects aerating regulation pond and hydrolytic tank respectively.

2. the wind path of a species diversity dyeing waste water as claimed in claim 1 processes system, it is characterized in that, also including sludge-tank and pressure mud machine, the sewage draining exit of described first flotation tank, preliminary sedimentation tank, second pond and the second flotation tank is all connected with sludge-tank, and described sludge-tank connects pressure mud machine.

3. the wind path of a species diversity dyeing waste water as claimed in claim 2 processes system, it is characterised in that also include sandfiltration pot, and the sewage draining exit in described reuse discharge pond connects sandfiltration pot.