CN209583884U - A kind of casting industry wastewater treatment equipment - Google Patents
A kind of casting industry wastewater treatment equipment Download PDFInfo
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- CN209583884U CN209583884U CN201821238665.6U CN201821238665U CN209583884U CN 209583884 U CN209583884 U CN 209583884U CN 201821238665 U CN201821238665 U CN 201821238665U CN 209583884 U CN209583884 U CN 209583884U
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- waste water
- wastewater treatment
- casting industry
- industry wastewater
- water
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Abstract
The utility model discloses a kind of casting industry wastewater treatment equipments, it is related to technical field of waste water processing, including passing through the sequentially connected coagulation reaction tank of pipeline, inclined-plate clarifying basin, hydrolysis acidification pool, biofilter and sterilization pool, inclined-plate clarifying basin lower end is provided with mud discharging mouth, it is filled with filler in biofilter, is covered with biomembrane on filler.The invention also discloses a kind of casting industry wastewater treatment method, making that treated, waste water complies fully with discharge standard, also waste water circulating and recovering can be improved the utilization rate of resource, thus save the cost.
Description
Technical field
The present invention relates to technical field of waste water processing, more particularly to a kind of casting industry wastewater treatment equipment.
Background technique
As what current process of industrialization and construction project were invested quickly propels, casting industry is rapidly developed.And with casting
The rapid development for making industry, the demand to water is growing day by day, and thus casting industry waste water treatment becomes matter of utmost importance.Casting is useless
Water water-quality COD is high, and oils concentration is high, and concentration of suspension is high, the method that traditional costing wastwater processing mostly uses coagulating sedimentation greatly,
Treated that water is extremely difficult to emission request for this method, and water body poor processing effect not only pollutes environment, but also can not carry out resource
Change and utilizes.
Summary of the invention
The technical problem to be solved by the present invention is to, the shortcomings that overcoming the prior art, provide at a kind of casting industry waste water
Manage device.
In order to solve the above technical problems, technical scheme is as follows:
A kind of casting industry wastewater treatment equipment, including by the sequentially connected coagulation reaction tank of pipeline, inclined-plate clarifying basin,
Hydrolysis acidification pool, biofilter and sterilization pool, inclined-plate clarifying basin lower end are provided with mud discharging mouth, are filled with filler in biofilter,
It is covered with biomembrane on filler.
Technical effect: coagulant and flocculation aid is first added in the present invention into waste water, by the colloidal particle phase in waste water
It mutually bonds and flocks together, form it into floccule, and separation of sinking, to carry out preliminary purification to waste water；By coagulation
Supernatant liquor afterwards enters inclined-plate clarifying basin, and inclined plate increases the wetted perimeter of the sedimentation basin cross-section of river, while reducing hydraulic radius,
To make water that can reduce the turbulent fluctuation of water under same flow velocity, promote the efficiency of precipitating, improves precipitating quality；After precipitating
Waste water enters hydrolysis acidification pool, and the macromolecule organic in waste water is broken down into small molecule compound in hydrolysis stage, is being acidified
In the stage, small molecule compound is converted into more simple compound after decomposition, so as to improve the biodegradability of waste water, after being convenient for
Continuous biological treatment lays a good foundation；Waste water after hydrolysis acidification is introduced into neutralization pond, adjusts the pH value of waste water, adjusts
Waste water enters biofilter after section is good, and waste water contacts extensively with biomembrane, on biomembrane under the metabolism of microorganism,
Organic pollutant in waste water is removed, so that waste water be made further to be purified, then waste water enters sterilization pool, is disappeared by chlorine
It is discharged after poison, waste water is made to comply fully with discharge standard, also waste water circulating and recovering can be improved the utilization rate of resource, thus
Save the cost.
It further, further include neutralization pond, the water inlet of neutralization pond is connected to by pipeline with the water outlet of hydrolysis acidification pool,
The water outlet of neutralization pond is connected to by pipeline with the water inlet of biofilter, and pH sensor is provided in neutralization pond.
A kind of preceding casting industry wastewater treatment equipment, biofilter bottom is provided with aeration tube, on aeration tube etc.
Away from offering several aeration openings.
It is arranged in the middle part of the pipeline of a kind of preceding casting industry wastewater treatment equipment, inclined-plate clarifying basin and hydrolysis acidification pool
There is filter.
A kind of preceding casting industry wastewater treatment equipment is provided with quartz sand filtration layer and active carbon mistake in filter
Filtering layer, quartz sand filtration layer are located between the water outlet and activated carbon filter layer of inclined-plate clarifying basin.
A kind of casting industry wastewater treatment method, comprising the following steps:
S1: the waste water generated when by casting is delivered in coagulation reaction tank, and the 0.08- of waste water gross mass is added into waste water
0.15% coagulant, carries out flocculation reaction, and reaction time 15-20min is acted on by gravitational settling and realized separation of solid and liquid, so
The supernatant in coagulation reaction tank is delivered in inclined-plate clarifying basin afterwards；
S2: waste water is precipitated in inclined-plate clarifying basin, sedimentation time 35-60min, and water is along inclined plate in precipitation process
Up-flow is dynamic, and the body refuse isolated is snapped down to bottom of pond along inclined plate under the effect of gravity, completes precipitating, and the water after separation is conveyed past
Hydrolysis acidification pool when being conveyed in the duct, first passes through filter, is transported to hydrolysis acidification by the water that filter filters
Chi Zhong, and the body refuse after separating then is discharged by mud discharging mouth；
The sulfuric acid of waste water gross mass 0.18-0.25%: being delivered in hydrolysis acidification pool by S3 by sulfuric acid pump, will be in water body
Emulsion it is broken, reduce the pH of water body, the fe of the 0.55-0.75% of waste water gross mass be added after 5-10min into waste water
And the hydrogen peroxide of the 0.24-0.36% of waste water gross mass, so that waste water is generated micro-electrolysis reaction, it is waste water is defeated after 10-15min
It send to neutralization pond；
S4: according to the collected pH signal of pH sensor in neutralization pond, appropriate white lime is added into neutralization pond, makes to neutralize
In pond then the waste water after neutralization is delivered to biofilter between 6.0-8.0 by the pH value of waste water；
S5: the aeration tube of biofilter bottom delivers the air in the waste water in biofilter, micro- on biomembrane
The organic matter in waste water is removed under the metabolism of biology, the processing time is 20-25min, by waste water after the completion of processing
It is delivered to sterilization pool；
S6: adding liquid chlorine into sterilization pool, carries out chlorination to waste water, is discharged after disinfection is up to standard.
A kind of preceding casting industry wastewater treatment method, coagulant is polymeric aluminum chlorides solution in S1.
Flocculation aid is also added in S1 in a kind of preceding casting industry wastewater treatment method into waste water, and flocculation aid is poly-
Acrylamide, the additive amount of flocculation aid are the 0.05-0.08% of waste water gross mass.
Preceding a kind of casting industry wastewater treatment method, using blender to waste water after sulfuric acid is added to waste water in S3
It is stirred, waste water is stirred using blender after adding white lime into waste water in S4.
The beneficial effects of the present invention are:
(1) present invention is provided with pH sensor in neutralization pond, can be acquired to the pH value of waste water, convenient for waste water
PH value is adjusted；
(2) present invention is provided with aeration tube in the bottom of biofilter, and equidistantly offers several exposures on aeration tube again
Port is delivered the air in biofilter by aeration tube, and the concentration of useless oxygen in water not only can be improved, and can also make biology
Waste water in filter tank is in flow regime, to guarantee that waste water comes into full contact with filler, avoid in biofilter there are waste water with fill out
Material contact is uneven and influences the quality of biological treatment；
(3) present invention is provided with filter in the middle part of the pipeline of inclined-plate clarifying basin and hydrolysis acidification pool, passes through filter pair
Waste water after precipitating is filtered, and improves the cleanliness of waste water；Quartz sand filtration layer in filter is by the suspended matter in water
It is retained, and activated carbon filter layer adsorbs peculiar smell, pigment, the heavy metal ion etc. in water, and reduces waste water
COD；
(4) present invention adds sulfuric acid into hydrolysis acidification pool, the emulsion in waste water water body is demulsified, to adjust water body
Water quality and quantity；Fe and hydrogen peroxide is added into waste water again, makes waste water item existing for acid and metallic catalyst
Under part, inside forms numerous micro-current reactor, generates anode reaction and cathode reaction, electric field, waste water are generated in waste water
In colloidal particle and small disperse contaminants by electric field action, generate electrophoresis, to the electrode movement of opposite charges, and gather
Collection on the electrode, makes clarification of water；Anode can generate hydrogen, have reproducibility, can reduce the toxicity of waste water, and increase waste water can oxygen
The property changed, is conducive to the subsequent processing to waste water；In addition, hydrogen peroxide is added, make the ferrous ion generated in light electrolysis and peroxide
Change hydrogen and form catalyst system, the catalyst system and light electrolysis act synergistically, and more tools can be generated during to wastewater treatment
There is the hydroxyl radical free radical of Strong oxdiative ability, the oxidative degradation of organic matter is enhanced, the removal rate of COD is made to improve 25-
30%。
Detailed description of the invention
Fig. 1 is schematic diagram of the invention.
Specific embodiment
It is right below according to specific embodiment and in conjunction with attached drawing to make the contents of the present invention be easier to be clearly understood
The present invention makes further details of explanation.
Present embodiments provide a kind of casting industry wastewater treatment equipment, including coagulation reaction tank, inclined-plate clarifying basin, hydrolysis
Acidification pool, biofilter, sterilization pool, neutralization pond and filter.
Coagulation reaction tank for receiving costing wastwater, the water outlet of coagulation reaction tank by pipeline and inclined-plate clarifying basin into
Mouth of a river connection.
Inclined-plate clarifying basin is made of water inlet, settling zone, water outlet and the part of mud collection area four, waste water by horizontal direction into
Enter inclined-plate clarifying basin, the water inlet of inclined-plate clarifying basin is provided with perforated wall, makes water flow in inclined-plate clarifying basin width direction
Water distribution is uniform；Be provided with several pieces of inclined plates parallel to each other in settling zone, waste water passes through inclined plate from bottom to top, and sediment by
It is upper downward, wherein the inclination angle of inclined plate is 55 ° -60 °, and the length of inclined plate is 0.8-1.2m, and the spacing between inclined plate is 50-
150mm；The mud collection area lower end of inclined-plate clarifying basin is provided with mud discharging mouth, the body refuse isolated is under the effect of gravity along under inclined plate
Bottom of pond is slided to, is discharged finally by mud discharging mouth.The water outlet of inclined-plate clarifying basin is connected to by the water inlet of pipe-and-filter, warp
The waste water for crossing precipitating enters filter by pipeline.
Quartz sand filtration layer and activated carbon filter layer are provided in filter, waste water first passes through quartz sand filtration layer, then
By activated carbon filter layer, quartz sand filtration layer retains the suspended matter in water, activated carbon filter layer in water peculiar smell,
Pigment, heavy metal ion etc. are adsorbed, and reduce the COD of waste water.The water outlet of filter passes through pipeline and hydrolysis acidification pool
Water inlet connection.
In hydrolysis acidification pool, the macromolecule organic in waste water is broken down into small molecule compound, In in hydrolysis stage
Acidification stage, small molecule compound is converted into more simple compound after decomposition, and the water outlet of hydrolysis acidification pool passes through pipeline
It is connected to the water inlet of neutralization pond.
PH sensor is installed in neutralization pond, the pH value of waste water in neutralization pond can be detected, and is converted into corresponding
Usable output signal is transmitted to host computer, makes operator that can intuitively understand the pH value of waste water at this time, then according to the pH
It is worth into neutralization pond and adds reagent, maintains the pH of waste water in one suitable range.The water outlet of neutralization pond passes through pipeline
It is connected to the water inlet of biofilter.
It is provided with filler in biofilter, biomembrane is covered on filler, the bottom of pond of biofilter is provided with aeration tube,
Aeration opening is equidistantly offered on aeration tube.Aeration tube is defeated by gas pipeline by air using the air blower being connected on aeration tube
It send to aeration opening, disperse escapes air in the form of bubbles.The water outlet of biofilter passes through the water inlet of pipeline and sterilization pool
Connection.
Waste water is discharged after chlorination in sterilization pool.
The present embodiment additionally provides a kind of casting industry wastewater treatment method, comprising the following steps:
S1: the waste water generated when by casting is delivered in coagulation reaction tank, and the 0.08- of waste water gross mass is added into waste water
0.15% polymeric aluminum chlorides solution and the polyacrylamide of waste water gross mass 0.05-0.08% carry out flocculation reaction, when reaction
Between be 15-20min, by gravitational settling act on realize be separated by solid-liquid separation, then the supernatant in coagulation reaction tank is delivered to tiltedly
In plate sedimentation basin；
S2: waste water is precipitated in inclined-plate clarifying basin, sedimentation time 35-60min, and water is along inclined plate in precipitation process
Up-flow is dynamic, and the body refuse isolated is snapped down to bottom of pond along inclined plate under the effect of gravity, completes precipitating, and the water after separation is conveyed past
Hydrolysis acidification pool when being conveyed in the duct, first passes through filter, is transported to hydrolysis acidification by the water that filter filters
Chi Zhong, and the body refuse after separating then is discharged by mud discharging mouth；
S3: the sulfuric acid of waste water gross mass 0.18-0.25% is delivered in hydrolysis acidification pool by sulfuric acid pump, uses blender
Waste water is stirred, the emulsion in water body is crushed, reduces the pH of water body, it is total that waste water is added into waste water after 5-10min
The hydrogen peroxide of the 0.24-0.36% of the fe and waste water gross mass of the 0.55-0.75% of quality makes waste water generate light electrolysis
Reaction, under the conditions of waste water is existing for the acid and metallic catalyst, inside forms numerous micro-current reactor, generates anode
Reaction and cathode reaction, generate electric field in waste water, and the colloidal particle and small disperse contaminants in waste water are produced by electric field action
Raw electrophoresis to the electrode movement of opposite charges, and assembles on the electrode, makes clarification of water；Anode can generate hydrogen, have also
Originality can reduce the toxicity of waste water, increase the oxidability of waste water, be conducive to the subsequent processing to waste water, will after 10-15min
Waste water is delivered to neutralization pond；
S4: according to the collected pH signal of pH sensor in neutralization pond, appropriate white lime is added into neutralization pond, with stirring
Machine is stirred waste water, makes that the waste water after neutralization is then delivered to life between the pH value 6.0-8.0 of waste water in neutralization pond
Object filter tank；
S5: the aeration tube of biofilter bottom delivers the air in the waste water in biofilter, and the processing time is 20-
25min is removed the organic matter in waste water under the metabolism of the microorganism on biomembrane, by waste water after the completion of processing
It is delivered to sterilization pool；
S6: adding liquid chlorine into sterilization pool, carries out chlorination to waste water, is discharged after disinfection is up to standard.
In addition to the implementation, the present invention can also have other embodiments；It is all to use equivalent substitution or equivalent transformation shape
At technical solution, fall within the scope of protection required by the present invention.
Claims (5)
1. a kind of casting industry wastewater treatment equipment, it is characterised in that: including by the sequentially connected coagulation reaction tank of pipeline, tiltedly
Plate sedimentation basin, hydrolysis acidification pool, biofilter and sterilization pool, the inclined-plate clarifying basin lower end are provided with mud discharging mouth, the biology
It is filled with filler in filter tank, is covered with biomembrane on the filler.
2. a kind of casting industry wastewater treatment equipment according to claim 1, it is characterised in that: it further include neutralization pond, institute
The water inlet of neutralization pond is stated be connected to by pipeline with the water outlet of hydrolysis acidification pool, the water outlet of the neutralization pond by pipeline and
The water inlet of biofilter is connected to, and is provided with pH sensor in the neutralization pond.
3. a kind of casting industry wastewater treatment equipment according to claim 1, it is characterised in that: the biofilter bottom
It is provided with aeration tube, equidistantly offers several aeration openings in the aeration tube.
4. a kind of casting industry wastewater treatment equipment according to claim 1, it is characterised in that: the inclined-plate clarifying basin with
Filter is provided in the middle part of the pipeline of hydrolysis acidification pool.
5. a kind of casting industry wastewater treatment equipment according to claim 4, it is characterised in that: setting in the filter
There are quartz sand filtration layer and activated carbon filter layer, the quartz sand filtration layer is located at the water outlet and active carbon of inclined-plate clarifying basin
Between filter layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821238665.6U CN209583884U (en) | 2018-08-02 | 2018-08-02 | A kind of casting industry wastewater treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821238665.6U CN209583884U (en) | 2018-08-02 | 2018-08-02 | A kind of casting industry wastewater treatment equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209583884U true CN209583884U (en) | 2019-11-05 |
Family
ID=68372421
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821238665.6U Expired - Fee Related CN209583884U (en) | 2018-08-02 | 2018-08-02 | A kind of casting industry wastewater treatment equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN209583884U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108996823A (en) * | 2018-08-02 | 2018-12-14 | 盐城旭恒环保科技有限公司 | A kind of casting industry wastewater treatment equipment and method |
-
2018
- 2018-08-02 CN CN201821238665.6U patent/CN209583884U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108996823A (en) * | 2018-08-02 | 2018-12-14 | 盐城旭恒环保科技有限公司 | A kind of casting industry wastewater treatment equipment and method |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191105 Termination date: 20200802 |