CN108083398A - The processing method of industrial wastewater - Google Patents
The processing method of industrial wastewater Download PDFInfo
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- CN108083398A CN108083398A CN201711289303.XA CN201711289303A CN108083398A CN 108083398 A CN108083398 A CN 108083398A CN 201711289303 A CN201711289303 A CN 201711289303A CN 108083398 A CN108083398 A CN 108083398A
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- 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
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- 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
- C02F1/5263—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using natural chemical compounds
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
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- 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)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of processing methods of industrial wastewater,Acidification is hydrolyzed in the industrial wastewater successively,Active sludge treatment,Coagulating kinetics and biological aerated filter processing,The flocculant of the coagulating kinetics addition includes polydimethyl diallyl ammonium chloride,Poly-aspartate,Quaternary ammonium salt,Alchlor,Acrylamide,Polyaluminum ferric chloride,Diethylaminoethyl second quinone,Thick tapioca starch,Maize cob meal,Deng,It can be to high concentration,High-turbidity water and not biochemical waste water can be handled effectively,Water quality that treated can realize recycling,COD removal rates are up to 80%~90%,BOD removal rates are up to 60%~70%,To the removal rate of heavy metal up to more than 93%,Especially to high concentration,High-turbidity water and not biochemical waste water can be handled effectively,SS,The removal rate of turbidity is up to more than 90%.
Description
Technical field
The present invention relates to a kind of water treatment agent, more particularly to a kind of processing method of industrial wastewater.
Background technology
Flocculation is using one of most common key link in waste water treatment process, it is largely affected subsequently
Operating condition, final outflow water quality and the cost of flow, thus as Technological research exploitation neck important in environmental project
Domain.Efficient flocculation technique system should be combined closely by three aspect of excellent flocculant, reactor and automatic control dispensing,
Middle flocculant plays the role of a nucleus.The key of flocculation treatment technology is the suitable flocculant of selection.There are many sorting technique of flocculant,
It is different by composition, inorganic flocculating agent, organic flocculant, natural flocculating agent (such as biological flocculant) can be generally classified as, if root
Electrically charged property, can further divide it after being dissociated according to the height of flocculating agent molecule amount, the feature of functional group and functional group
For macromolecule, low molecule, cationic, anionic and flocculant in non-ion type etc..Wherein, inorganic flocculating agent can by metal salt
It is divided into two major class of aluminium salt system and molysite system：Aluminium salt is based on aluminum sulfate, aluminium chloride, and molysite is based on ferric sulfate, iron chloride.It is inorganic
High polymer coagulant is a kind of novel flocculant to grow up on the basis of traditional molysite, aluminium salt the 1960s, is
The main product and main direction of studying of inorganic flocculating agent, mainly including polyaluminium sulfate, aluminium polychloride, bodied ferric sulfate,
Poly-ferric chloride etc..Inorganic polymer flocculant has better flocculating effect than original traditional medicament and phase dutiable value is relatively low,
Japan, Russia, West Europe, China all have the production and application of considerable scale, and the production of polymeric type medicament accounts for flocculant total amount
30%~60%.High-concentration industrial-water is both different from sanitary sewage, also different from general trade effluent, often containing more
The pollutants such as the poisonous and hazardous hardly degraded organic substance of kind, heavy metal ion and ammonia nitrogen, complicated component, current conventional poly-aluminium are gathered
The flocculants such as iron are since flocculation component is single undesirable to the treatment effect of these high-concentration waste waters, particularly to dissolubility in water
The place to go effect of pollutant is bad.So for high-concentration waste water, also lack at present a kind of wide spectrum, efficiently, stability it is good,
The flocculant that specificity is strong, flocculating property is excellent, the ratio of performance to price is moderate.
The content of the invention
In view of this, it is an object of the invention to provide a kind of wide spectrum, efficiently, stability is good, specificity is strong, flocculating property
Flocculant excellent, the ratio of performance to price is moderate, is combined with processing method, improves the treatment effect of industrial wastewater.
The processing method of the industrial wastewater of the present invention, comprises the following steps：Acid is hydrolyzed in the industrial wastewater successively
Change processing, active sludge treatment, coagulating kinetics and biological aerated filter processing, the flocculation of the coagulating kinetics addition
Agent raw material includes following components by weight：
11-16 parts of polydimethyl diallyl ammonium chloride, 5-10 parts of poly-aspartate, 5-10 parts of quaternary ammonium salt, alchlor
4-8 parts, 6-12 parts of acrylamide, 3-5 parts of polyaluminum ferric chloride, 5-10 parts of diethylaminoethyl second quinone, thick tapioca starch 1-3
Part, 1-3 parts of maize cob meal, 2-5 parts of polysilicate aluminum ferric sulfate, 3-6 parts of vinyl trimethyl oxygroup alkane, 1-3 parts of rare earth, polychlorostyrene second
1-3 parts of alkene hollow ball；
Further, the flocculant raw material includes following components by weight：
13 parts of polydimethyl diallyl ammonium chloride, 7 parts of poly-aspartate, 7 parts of quaternary ammonium salt, 6 parts of alchlor, acryloyl
8 parts of amine, 4 parts of polyaluminum ferric chloride, 7 parts of diethylaminoethyl second quinone, 2 parts of thick tapioca starch, 2 parts of maize cob meal, polysilicon acid
3 parts of aluminium iron sulfate, 4 parts of vinyl trimethyl oxygroup alkane, 2 parts of rare earth, 2 parts of polyvinyl chloride hollow ball；
Further, 0.1-1 parts of initiator is further included；
Further, the initiator is the mixture of azodiisobutyronitrile, ammonium persulfate and sodium sulfite.
Beneficial effects of the present invention：The processing method of the industrial wastewater of the present invention, used flocculant have both flocculation, frame
Bridge and net catch 3 processes, and there are synergistic function between the ion of this flocculant, existing nonionic functional group is also simultaneous
There is cationic functional group, embedding cloth in each chain link of macromolecular, passes through ligand complex power, hydrogen bond association extensively for these functional groups
" bridge formation " is allowed to flocculate between power and Van der Waals force make the solia particle being continuously dispersed in water, while again can be by cationic official's grace
The charge of institute of group band destroys the electric double layer of subparticle, makes solia particle " cohesion ", improves settleability and filtrating aid function.The present invention
The industrial wastewater flocculant flocculation sediment time it is short, effect is good, at low cost, improve hydrone activated emulsion power, degradation water has
Evil substance and heavy metal, especially can effectively be handled high concentration, high-turbidity water and not biochemical waste water, treated
Water quality can realize recycling, and COD removal rates are up to 80%~90%, BOD removal rates up to 60%~70%, the removal to heavy metal
Rate especially can effectively handle high concentration, high-turbidity water and not biochemical waste water up to more than 93%, SS, turbidity
Removal rate is up to more than 90%.
Specific embodiment
The processing method of the industrial wastewater of the present embodiment, comprises the following steps：The industrial wastewater is hydrolyzed successively
Acidification, active sludge treatment, coagulating kinetics and biological aerated filter processing, the wadding of the coagulating kinetics addition
Solidifying agent raw material includes following components by weight：
11-16 parts of polydimethyl diallyl ammonium chloride, 5-10 parts of poly-aspartate, 5-10 parts of quaternary ammonium salt, alchlor
4-8 parts, 6-12 parts of acrylamide, 3-5 parts of polyaluminum ferric chloride, 5-10 parts of diethylaminoethyl second quinone, thick tapioca starch 1-3
Part, 1-3 parts of maize cob meal, 2-5 parts of polysilicate aluminum ferric sulfate, 3-6 parts of vinyl trimethyl oxygroup alkane, 1-3 parts of rare earth, polychlorostyrene second
1-3 parts of alkene hollow ball；First passing through hydrolysis acidification reaction makes most of hardly degraded organic substance be converted into easily biodegradable organics, Ran Houtong
It crosses activated sludge reaction to degrade to easily biodegradable organics, coagulative precipitation tank, removal two need to be added after activated sludge reaction
Suspended solid substance, part colloidality substance and part larger molecular organics, prevent biological aerated filter from hindering in sinking pool effluent
Plug.Sewage is handled using biological aerated filter after coagulating sedimentation, it is organic to remove remaining macromolecule in secondary clarifier effluent
Object removes Long carbon chain lipid material and small molecular organic matter in tail water.Final outflow water can meet《Urban wastewater treatment firm
Pollutant emission standard》(GB18918-2002) level-one A standards.Synergy between used flocculating agent molecule plays
The strong point of different type and different structure flocculant；Polydimethyl diallyl ammonium chloride is synergistic with acrylamide, and matches somebody with somebody
Iron ion in side has again promotees flocculated effect, and the flco formed after polyaluminum ferric chloride addition is closely knit, and particle is big, favorably
In sedimentation and removal, while the superior function of each metal ion flocculation treatment is played, various metals ion is made full use of
Between and the synergistic principle between metal ion and other components overcome drawbacks described above.Polyvinyl chloride hollow ball wraps carefully
Bacterium forms netted flco, plays a role in filtering to waste water, adsorbs little particle and free bacteria in simultaneously intercepting sewage；Poly- asparagus fern
Propylhomoserin has calcium ion higher tolerance, and with the performance of sustained release scale inhibition.
In the present embodiment, the flocculant raw material includes following components by weight：
13 parts of polydimethyl diallyl ammonium chloride, 7 parts of poly-aspartate, 7 parts of quaternary ammonium salt, 6 parts of alchlor, acryloyl
8 parts of amine, 4 parts of polyaluminum ferric chloride, 7 parts of diethylaminoethyl second quinone, 2 parts of thick tapioca starch, 2 parts of maize cob meal, polysilicon acid
3 parts of aluminium iron sulfate, 4 parts of vinyl trimethyl oxygroup alkane, 2 parts of rare earth, 2 parts of polyvinyl chloride hollow ball.
In the present embodiment, 0.1-1 parts of initiator is further included；For improving the clearance rate of turbidity.
In the present embodiment, the initiator is the mixture of azodiisobutyronitrile, ammonium persulfate and sodium sulfite.
Embodiment one
The processing method of the industrial wastewater of the present embodiment, comprises the following steps：The industrial wastewater is hydrolyzed successively
Acidification, active sludge treatment, coagulating kinetics and biological aerated filter processing, the wadding of the coagulating kinetics addition
Solidifying agent raw material includes following components by weight：
11 parts of polydimethyl diallyl ammonium chloride, 5 parts of poly-aspartate, 5 parts of quaternary ammonium salt, 4 parts of alchlor, acryloyl
6 parts of amine, 3 parts of polyaluminum ferric chloride, 5 parts of diethylaminoethyl second quinone, 1 part of thick tapioca starch, 1 part of maize cob meal, polysilicon acid
2 parts of aluminium iron sulfate, 3 parts of vinyl trimethyl oxygroup alkane, 1 part of rare earth, 1 part of polyvinyl chloride hollow ball.
Water quality that treated can realize recycling, and COD removal rates are up to 80%, BOD removal rates up to 70%, to heavy metal
Removal rate especially can effectively be handled high concentration, high-turbidity water and not biochemical waste water up to more than 93%, SS, turbid
The removal rate of degree is up to more than 90%.
Embodiment two
The processing method of the industrial wastewater of the present embodiment, comprises the following steps：The industrial wastewater is hydrolyzed successively
Acidification, active sludge treatment, coagulating kinetics and biological aerated filter processing, the wadding of the coagulating kinetics addition
Solidifying agent raw material includes following components by weight：
16 parts of polydimethyl diallyl ammonium chloride, 10 parts of poly-aspartate, 10 parts of quaternary ammonium salt, 8 parts of alchlor, propylene
It is 12 parts of amide, 5 parts of polyaluminum ferric chloride, 10 parts of diethylaminoethyl second quinone, 3 parts of thick tapioca starch, 3 parts of maize cob meal, poly-
5 parts of silicic acid aluminium iron sulfate, 6 parts of vinyl trimethyl oxygroup alkane, 3 parts of rare earth, 3 parts of polyvinyl chloride hollow ball.
Water quality that treated can realize recycling, and COD removal rates are up to 85%, BOD removal rates up to 65%, to heavy metal
Removal rate especially can effectively be handled high concentration, high-turbidity water and not biochemical waste water up to more than 93%, SS, turbid
The removal rate of degree is up to more than 90%.
Embodiment three
The processing method of the industrial wastewater of the present embodiment, comprises the following steps：The industrial wastewater is hydrolyzed successively
Acidification, active sludge treatment, coagulating kinetics and biological aerated filter processing, the wadding of the coagulating kinetics addition
Solidifying agent raw material includes following components by weight：
11 parts of polydimethyl diallyl ammonium chloride, 10 parts of poly-aspartate, 5 parts of quaternary ammonium salt, 8 parts of alchlor, propylene
6 parts of amide, 5 parts of polyaluminum ferric chloride, 5 parts of diethylaminoethyl second quinone, 3 parts of thick tapioca starch, 1 part of maize cob meal, poly- silicon
Sour 5 parts of aluminium iron sulfate, 3 parts of vinyl trimethyl oxygroup alkane, 3 parts of rare earth, 1 part of polyvinyl chloride hollow ball, 0.1 part of initiator.
Water quality that treated can realize recycling, and COD removal rates are up to 90%, BOD removal rates up to 70%, to heavy metal
Removal rate especially can effectively be handled high concentration, high-turbidity water and not biochemical waste water up to more than 93%, SS, turbid
The removal rate of degree is up to more than 90%.
Example IV
The processing method of the industrial wastewater of the present embodiment, comprises the following steps：The industrial wastewater is hydrolyzed successively
Acidification, active sludge treatment, coagulating kinetics and biological aerated filter processing, the wadding of the coagulating kinetics addition
Solidifying agent raw material includes following components by weight：
16 parts of polydimethyl diallyl ammonium chloride, 5 parts of poly-aspartate, 10 parts of quaternary ammonium salt, 4 parts of alchlor, propylene
It is 12 parts of amide, 3 parts of polyaluminum ferric chloride, 10 parts of diethylaminoethyl second quinone, 1 part of thick tapioca starch, 3 parts of maize cob meal, poly-
2 parts of silicic acid aluminium iron sulfate, 6 parts of vinyl trimethyl oxygroup alkane, 1 part of rare earth, 3 parts of polyvinyl chloride hollow ball, 1 part of initiator.
Water quality that treated can realize recycling, and COD removal rates are up to 89%, BOD removal rates up to 64%, to heavy metal
Removal rate especially can effectively be handled high concentration, high-turbidity water and not biochemical waste water up to more than 93%, SS, turbid
The removal rate of degree is up to more than 90%.
Embodiment five
The processing method of the industrial wastewater of the present embodiment, comprises the following steps：The industrial wastewater is hydrolyzed successively
Acidification, active sludge treatment, coagulating kinetics and biological aerated filter processing, the wadding of the coagulating kinetics addition
Solidifying agent raw material includes following components by weight：
13 parts of polydimethyl diallyl ammonium chloride, 5 parts of poly-aspartate, 7 parts of quaternary ammonium salt, 8 parts of alchlor, acryloyl
10 parts of amine, 3 parts of polyaluminum ferric chloride, 6 parts of diethylaminoethyl second quinone, 3 parts of thick tapioca starch, 2 parts of maize cob meal, polysilicon acid
2 parts of aluminium iron sulfate, 4 parts of vinyl trimethyl oxygroup alkane, 3 parts of rare earth, 1 part of polyvinyl chloride hollow ball, 0.5 part of initiator.
Water quality that treated can realize recycling, and COD removal rates are up to 90%, BOD removal rates up to 68%, to heavy metal
Removal rate especially can effectively be handled high concentration, high-turbidity water and not biochemical waste water up to more than 93%, SS, turbid
The removal rate of degree is up to more than 90%.
Embodiment six
The processing method of the industrial wastewater of the present embodiment, comprises the following steps：The industrial wastewater is hydrolyzed successively
Acidification, active sludge treatment, coagulating kinetics and biological aerated filter processing, the wadding of the coagulating kinetics addition
Solidifying agent raw material includes following components by weight：
13 parts of polydimethyl diallyl ammonium chloride, 7 parts of poly-aspartate, 7 parts of quaternary ammonium salt, 6 parts of alchlor, acryloyl
8 parts of amine, 4 parts of polyaluminum ferric chloride, 7 parts of diethylaminoethyl second quinone, 2 parts of thick tapioca starch, 2 parts of maize cob meal, polysilicon acid
3 parts of aluminium iron sulfate, 4 parts of vinyl trimethyl oxygroup alkane, 2 parts of rare earth, 2 parts of polyvinyl chloride hollow ball.
Water quality that treated can realize recycling, and COD removal rates are up to 90%, BOD removal rates up to 70%, to heavy metal
Removal rate especially can effectively be handled high concentration, high-turbidity water and not biochemical waste water up to more than 93%, SS, turbid
The removal rate of degree is up to more than 90%.
In above-described embodiment, the initiator is the mixture of azodiisobutyronitrile, ammonium persulfate and sodium sulfite.
In above-described embodiment, in the aeration tank processing step, organic loading 0.045-0.205kgBOD5/
(kgMLVSS.d), when hydraulic detention time is 13-15 small, the dissolved oxygen content in aeration tank is 0.4-1mg/L；Aeration and biological
In the processing step of filter tank, filler is selected from activated carbon or haydite；When hydraulic detention time is 2-3 small；Offering oxygen way is additional air blast
The volume ratio of aeration, air and the inflow of the industrial wastewater is 2~4L：1L, the pressure of air is 1 standard atmospheric pressure.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail in good embodiment, it will be understood by those of ordinary skill in the art that, it can be to the skill of the present invention
Art scheme is modified or replaced equivalently, and without departing from the objective and scope of technical solution of the present invention, should all be covered at this
Among the right of invention.
Claims (4)
1. a kind of processing method of industrial wastewater, it is characterised in that：Comprise the following steps：The industrial wastewater is subjected to water successively
Acidification, active sludge treatment, coagulating kinetics and biological aerated filter processing are solved, the coagulating kinetics addition
Flocculant raw material includes following components by weight：
11-16 parts of polydimethyl diallyl ammonium chloride, 5-10 parts of poly-aspartate, 5-10 parts of quaternary ammonium salt, alchlor 4-8
Part, 6-12 parts of acrylamide, 3-5 parts of polyaluminum ferric chloride, 5-10 parts of diethylaminoethyl second quinone, it is tapioca starch 1-3 parts thick,
1-3 parts of maize cob meal, 2-5 parts of polysilicate aluminum ferric sulfate, 3-6 parts of vinyl trimethyl oxygroup alkane, 1-3 parts of rare earth, polyvinyl chloride
1-3 parts of hollow ball.
2. the processing method of industrial wastewater according to claim 1, it is characterised in that：The flocculant raw material is by weight
Including following components：
13 parts of polydimethyl diallyl ammonium chloride, 7 parts of poly-aspartate, 7 parts of quaternary ammonium salt, 6 parts of alchlor, acrylamide 8
Part, 4 parts of polyaluminum ferric chloride, 7 parts of diethylaminoethyl second quinone, 2 parts of thick tapioca starch, 2 parts of maize cob meal, polysilicate sulfuric acid
3 parts of ferro-aluminum, 4 parts of vinyl trimethyl oxygroup alkane, 2 parts of rare earth, 2 parts of polyvinyl chloride hollow ball.
3. the processing method of industrial wastewater according to claim 1, it is characterised in that：Further include 0.1-1 parts of initiator.
4. the processing method of industrial wastewater according to claim 3, it is characterised in that：The initiator is two isobutyl of azo
The mixture of nitrile, ammonium persulfate and sodium sulfite.
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Cited By (1)
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