CN115043512A - Method for utilizing high-turbidity backwashing wastewater of filter - Google Patents
Method for utilizing high-turbidity backwashing wastewater of filter Download PDFInfo
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- CN115043512A CN115043512A CN202210104537.7A CN202210104537A CN115043512A CN 115043512 A CN115043512 A CN 115043512A CN 202210104537 A CN202210104537 A CN 202210104537A CN 115043512 A CN115043512 A CN 115043512A
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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
- C02F9/00—Multistage treatment of water, waste water or sewage
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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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
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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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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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
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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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
Abstract
The invention discloses a method for utilizing high-turbidity backwashing wastewater of a filter, which comprises the following steps: high turbidity backwash waste water stirs, prefiltration, flocculation, depth filtration, water quality testing, reverse osmosis treatment and neutralization treatment to accomplish the processing to high turbidity backwash waste water, the treatment effect is very good, makes it can carry out better utilization, utilizes in each field, and the water economy resource avoids simply handling the pollution that directly discharges and cause the environment. Through setting up the water quality testing pond to thereby confirm next step operation step according to the content of impurity in the backwash waste water, so that better handle backwash waste water, ensure the treatment effect of backwash waste water, improve the treatment effeciency of backwash waste water.
Description
Technical Field
The invention relates to the field of backwashing wastewater, in particular to a method for utilizing high-turbidity backwashing wastewater of a filter.
Background
The conventional backwashing wastewater treatment technologies comprise traditional methods such as coagulation sedimentation, centrifugal filtration and air flotation, and the traditional methods such as coagulation sedimentation and dissolved air flotation can well remove suspended matters in backwashing wastewater, but have no good effect on removing N, P, organic matters and the like in backwashing wastewater.
Therefore, a method for utilizing high turbidity backwashing wastewater of a filter is urgently needed to realize the treatment and reuse of the high turbidity backwashing wastewater, and the direct discharge of the high turbidity backwashing wastewater after simple treatment is avoided, so that the extreme waste of water resources and the environmental pollution are caused.
Disclosure of Invention
The invention aims to provide a method for utilizing high-turbidity backwashing wastewater of a filter, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a method for utilizing high-turbidity backwashing wastewater of a filter comprises the following steps:
the method comprises the following steps: stirring the high-turbidity backwashing wastewater;
step two: preliminary filtering of high-turbidity backwashing wastewater;
step three: flocculation of high turbidity backwashing wastewater;
step four: deep filtration of high turbidity backwashing wastewater;
step five: detecting the water quality of the high-turbidity backwashing wastewater;
step six: reverse osmosis treatment of high turbidity backwashing wastewater;
step seven: and (4) neutralizing the high-turbidity backwashing wastewater.
As a further scheme of the invention: adding a chlorine neutralizer into the backwashing wastewater, highly stirring, allowing the stirred backwashing wastewater to enter a filter tank, completing simple and preliminary filtering of the backwashing wastewater, filtering out large granular impurities in the backwashing wastewater, allowing the filtered backwashing wastewater to enter a flocculation tank, adding a flocculating agent into the tank, slightly stirring, flocculating the backwashing wastewater to form a flocculating constituent, deeply filtering the backwashing wastewater forming the flocculating constituent through a high-efficiency fiber filter, filtering out flocculating constituents and small impurities in the backwashing wastewater, sending the backwashing wastewater after deep filtering into a water quality detection tank for water quality detection, sending the backwashing wastewater containing the heavy impurities back to the flocculation tank again, repeating the fourth step and the fifth step until the water quality detection result is qualified, sending the backwashing wastewater after deep filtering into the water quality detection tank for water quality detection, the backwash wastewater that contains moderate impurity in the water is sent into the ultrafiltration pond, carry out ultrafiltration treatment, send backwash wastewater after the depth filtration into water quality testing pond and carry out water quality testing in, backwash wastewater that contains mild impurity in the water sends into the microfiltration pond, carry out microfiltration treatment, backwash wastewater after surpassing filtering pond and microfiltration pond and sending into reverse osmosis pond and carry out reverse osmosis treatment, utilize reverse osmosis treatment's separation characteristic, get rid of the dissolved salt in the backwash wastewater, the colloid, the organic matter, the bacterium, microorganism impurity, at last send into the water after handling and carry out pH value in final neutralization pond and adjust, the utilization of backwash wastewater of being convenient for.
As a further scheme of the invention: the addition amount of the chlorine neutralizer is that 0.5-0.8g of the chlorine neutralizer is added into each liter of backwashing wastewater, and 1.5-2.5g of the flocculant is added into each liter of the backwashing wastewater.
As a further scheme of the invention: the filter tank is internally provided with double layers of filter screens, the pores of each layer of filter screen are different, and the pores of the filter screens are sequentially reduced from high to low so as to ensure that impurities in the backwashing wastewater are better filtered.
As a further scheme of the invention: the flocculation tank is added with a coagulant aid in the flocculation process so as to accelerate the formation of floccules in the wastewater.
As a further scheme of the invention: 0.6-0.8g of coagulant aid is added into each liter of backwashing wastewater.
As a further scheme of the invention: the reverse osmosis treatment is to separate the solute from the solvent in the domestic sewage by means of selective interception of a semipermeable membrane which allows only water to permeate but not other substances under the action of pressure higher than the osmotic pressure of the domestic sewage.
As a further scheme of the invention: and an ultrafiltration membrane is arranged in the ultrafiltration tank, and the pore size of the ultrafiltration membrane is 0.1-0.2 mu m.
As a further scheme of the invention: the micro-filtration tank is internally provided with a micro-filtration membrane, and the pore size of the micro-filtration membrane is 0.3-0.4 μm.
As a still further scheme of the invention: the high-efficiency fiber filter is pressure type fiber filter equipment with excellent performance and advanced structure, the high-efficiency fiber filter has no easily damaged parts, the operation is simple, the adjustment of the fiber density is skillfully adjusted through a special device in the equipment by waterpower, and a fiber bundle filter material fixing and movably connecting traction device is arranged in the high-efficiency fiber filter accessory.
Compared with the prior art, the invention has the beneficial effects that:
1. through stirring, prefiltration, flocculation, depth filtration, water quality testing, reverse osmosis treatment and neutralization treatment to high turbidity backwash waste water to accomplish the processing to high turbidity backwash waste water, the treatment effect is very good, makes it carry out better utilization, utilizes in each field, and the water economy resource avoids simply handling the pollution that directly discharges and cause the environment.
2. Through setting up the water quality testing pond to thereby confirm next step operation step according to the content of impurity in the backwash waste water, so that better handle backwash waste water, ensure the treatment effect of backwash waste water, improve the treatment effeciency of backwash waste water.
Drawings
FIG. 1 is a flow chart of the method for utilizing high turbidity backwashing wastewater of a filter.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example one
Referring to fig. 1, a method for utilizing high turbidity backwashing wastewater of a filter comprises the following steps:
the method comprises the following steps: stirring the high-turbidity backwashing wastewater: adding a chlorine neutralizer into the backwashing wastewater, wherein the addition amount of the chlorine neutralizer is 0.5-0.8g per liter of the backwashing wastewater, and highly stirring;
step two: preliminary filtration of high turbidity backwash wastewater: the stirred backwashing wastewater enters a filtering tank to finish simple and preliminary filtering of the backwashing wastewater, and large granular impurities in the backwashing wastewater are filtered;
step three: flocculation of high turbidity backwash wastewater: the filtered backwashing wastewater enters a flocculation tank, a flocculating agent is added into the tank, 1.5-2.5g of flocculating agent is added into each liter of backwashing wastewater, and the mixture is stirred slightly to flocculate the backwashing wastewater to form a flocculating constituent;
step four: deep filtration of high turbidity backwashing wastewater: carrying out deep filtration on the backwashing wastewater forming the flocculating constituent through a high-efficiency fiber filter, and filtering out the flocculating constituent and small impurities in the backwashing wastewater;
step five: reverse osmosis treatment of high turbidity backwashing wastewater: removing dissolved salts, colloids, organic matters, bacteria and microorganism impurities in the backwashing wastewater by utilizing the separation characteristic of reverse osmosis treatment;
step six: neutralizing the high-turbidity backwashing wastewater: and finally, the treated water body is sent into a final neutralization tank for pH value adjustment, so that backwashing wastewater can be conveniently utilized.
Example two
Referring to fig. 1, a method for utilizing high turbidity backwashing wastewater of a filter comprises the following steps:
the method comprises the following steps: stirring the high-turbidity backwashing wastewater: adding a chlorine neutralizer into the backwashing wastewater, wherein the addition amount of the chlorine neutralizer is 0.5-0.8g per liter of the backwashing wastewater, and highly stirring;
step two: preliminary filtration of high turbidity backwash wastewater: the stirred backwashing wastewater enters a filtering tank to finish simple and preliminary filtering of the backwashing wastewater, and large granular impurities in the backwashing wastewater are filtered;
step three: flocculation of high turbidity backwash wastewater: the filtered backwashing wastewater enters a flocculation tank, a flocculating agent is added into the tank, 1.5-2.5g of flocculating agent is added into each liter of backwashing wastewater, and the mixture is stirred slightly to flocculate the backwashing wastewater to form a flocculating constituent;
step four: deep filtration of high turbidity backwashing wastewater: carrying out deep filtration on the backwashing wastewater forming the flocculating constituent through a high-efficiency fiber filter, and filtering out the flocculating constituent and small impurities in the backwashing wastewater;
step five: and (3) detecting the water quality of the high-turbidity backwashing wastewater:
the method comprises the following steps: sending the backwashing wastewater after the deep filtration into a water quality detection tank for water quality detection, sending the backwashing wastewater containing severe impurities in the water body back into the flocculation tank again, and repeating the fourth step and the fifth step until the water quality detection result is qualified;
and step two: sending the backwash wastewater after deep filtration into a water quality detection tank for water quality detection, sending the backwash wastewater containing moderate impurities in a water body into an ultrafiltration tank for ultrafiltration treatment;
③: sending the backwashing wastewater after deep filtration into a water quality detection tank for water quality detection, sending the backwashing wastewater containing light impurities in a water body into a microfiltration tank for microfiltration treatment;
step six: reverse osmosis treatment of high turbidity backwashing wastewater: sending the backwash wastewater treated in the ultrafiltration tank and the microfiltration tank into a reverse osmosis tank for reverse osmosis treatment, and removing dissolved salts, colloids, organic matters, bacteria and microorganism impurities in the backwash wastewater by utilizing the separation characteristic of the reverse osmosis treatment;
step seven: neutralizing the high-turbidity backwashing wastewater: and finally, the treated water body is sent into a final neutralization tank for pH value adjustment, so that backwashing wastewater can be conveniently utilized.
Through setting up the water quality testing pond to thereby confirm next step operation step according to the content of impurity in the backwash waste water, so that better handle backwash waste water, ensure the treatment effect of backwash waste water, improve the treatment effeciency of backwash waste water. Through stirring, prefiltering, flocculation, depth filtration, water quality testing, reverse osmosis treatment and neutralization treatment to high turbidity backwash waste water to accomplish the processing to high turbidity backwash waste water, the treatment effect is very good, makes it can carry out better utilization, utilizes in each field, and the water economy resource avoids simply handling the pollution that direct emission caused the environment.
EXAMPLE III
Referring to fig. 1, a method for utilizing high turbidity backwashing wastewater of a filter comprises the following steps:
the method comprises the following steps: stirring the high-turbidity backwashing wastewater: adding a chlorine neutralizer into the backwashing wastewater, wherein the addition amount of the chlorine neutralizer is 0.5-0.8g per liter of the backwashing wastewater, and highly stirring;
step two: preliminary filtration of high turbidity backwash wastewater: the stirred backwashing wastewater enters a filtering tank to finish simple and preliminary filtering of the backwashing wastewater, and large granular impurities in the backwashing wastewater are filtered;
step three: flocculation of high turbidity backwash wastewater: the filtered backwashing wastewater enters a flocculation tank, a flocculating agent is added into the tank, 1.5-2.5g of flocculating agent is added into each liter of backwashing wastewater, and the mixture is stirred slightly to flocculate the backwashing wastewater to form a flocculating constituent;
step four: deep filtration of high turbidity backwashing wastewater: carrying out deep filtration on the backwashing wastewater forming the flocculating constituent through a high-efficiency fiber filter, and filtering out the flocculating constituent and small impurities in the backwashing wastewater;
step five: and (3) detecting the water quality of the high-turbidity backwashing wastewater:
the method comprises the following steps: sending the backwashing wastewater after the deep filtration into a water quality detection tank for water quality detection, sending the backwashing wastewater containing severe impurities in the water body back into the flocculation tank again, and repeating the fourth step and the fifth step until the water quality detection result is qualified;
and step two: sending the backwash wastewater after deep filtration into a water quality detection tank for water quality detection, sending the backwash wastewater containing moderate impurities in a water body into an ultrafiltration tank for ultrafiltration treatment;
③: sending the backwashing wastewater after deep filtration into a water quality detection tank for water quality detection, sending the backwashing wastewater containing light impurities in a water body into a microfiltration tank for microfiltration treatment;
step six: reverse osmosis treatment of high-turbidity backwashing wastewater: sending the backwash wastewater treated in the ultrafiltration tank and the microfiltration tank into a reverse osmosis tank for reverse osmosis treatment, and removing dissolved salts, colloids, organic matters, bacteria and microorganism impurities in the backwash wastewater by utilizing the separation characteristic of the reverse osmosis treatment;
step seven: neutralizing the high-turbidity backwashing wastewater: and finally, the treated water body is sent into a final neutralization tank for pH value adjustment, so that backwashing wastewater can be conveniently utilized.
Preferably: the addition amount of the chlorine neutralizer is that 0.5-0.8g of the chlorine neutralizer is added into each liter of backwashing wastewater, and 1.5-2.5g of the flocculant is added into each liter of the backwashing wastewater.
Preferably: the flocculation tank is added with a coagulant aid in the flocculation process so as to accelerate the formation of floccules in the wastewater.
Preferably: 0.6-0.8g of coagulant aid is added into each liter of backwashing wastewater.
Preferably, the following components: the reverse osmosis treatment is to separate the solute from the solvent in the domestic sewage by means of selective interception of a semipermeable membrane which allows only water to permeate therethrough but not other substances under the action of pressure higher than the osmotic pressure of the domestic sewage.
Preferably: and an ultrafiltration membrane is arranged in the ultrafiltration tank, and the pore size of the ultrafiltration membrane is 0.1-0.2 mu m.
Preferably, the following components: the microfiltration tank is internally provided with a microfiltration membrane, and the pore size of the microfiltration membrane is 0.3-0.4 mu m.
Preferably: the efficient fiber filter is pressure type fiber filtering equipment with excellent performance and advanced structure, the efficient fiber filter has no easily damaged parts and is simple to operate, the adjustment of the fiber density is skillfully adjusted through a special device inside the equipment through water power, and a fiber bundle filtering material fixing and movably connected drawing device is arranged inside an efficient fiber filter accessory.
Example four
Referring to fig. 1, a method for utilizing high turbidity backwashing wastewater of a filter comprises the following steps:
the method comprises the following steps: stirring the high-turbidity backwashing wastewater: adding a chlorine neutralizer into the backwashing wastewater, wherein the addition amount of the chlorine neutralizer is 0.5-0.8g per liter of the backwashing wastewater, and highly stirring;
step two: preliminary filtration of high turbidity backwash wastewater: the stirred backwashing wastewater enters a filtering tank to finish simple and preliminary filtering of the backwashing wastewater, and large granular impurities in the backwashing wastewater are filtered;
step three: flocculation of high turbidity backwash wastewater: the filtered backwashing wastewater enters a flocculation tank, a flocculating agent is added into the tank, 1.5-2.5g of flocculating agent is added into each liter of backwashing wastewater, and the mixture is stirred slightly to flocculate the backwashing wastewater to form a flocculating constituent;
step four: deep filtration of high turbidity backwashing wastewater: carrying out deep filtration on the backwashing wastewater forming the flocculating constituent through a high-efficiency fiber filter, and filtering out the flocculating constituent and small impurities in the backwashing wastewater;
step five: and (3) detecting the water quality of the high-turbidity backwashing wastewater:
the method comprises the following steps: sending the backwashing wastewater after the deep filtration into a water quality detection tank for water quality detection, sending the backwashing wastewater containing severe impurities in the water body back into the flocculation tank again, and repeating the fourth step and the fifth step until the water quality detection result is qualified;
secondly, the step of: sending the backwash wastewater after deep filtration into a water quality detection tank for water quality detection, sending the backwash wastewater containing moderate impurities in a water body into an ultrafiltration tank for ultrafiltration treatment;
③: sending the backwashing wastewater after deep filtration into a water quality detection tank for water quality detection, sending the backwashing wastewater containing light impurities in a water body into a microfiltration tank for microfiltration treatment;
step six: reverse osmosis treatment of high-turbidity backwashing wastewater: sending the backwash wastewater treated in the ultrafiltration tank and the microfiltration tank into a reverse osmosis tank for reverse osmosis treatment, and removing dissolved salts, colloids, organic matters, bacteria and microorganism impurities in the backwash wastewater by utilizing the separation characteristic of the reverse osmosis treatment;
step seven: and (3) neutralizing treatment of the high-turbidity backwashing wastewater: and finally, the treated water body is sent into a final neutralization tank for pH value adjustment, so that backwashing wastewater can be conveniently utilized.
Preferably: the addition amount of the chlorine neutralizer is that 0.5-0.8g of the chlorine neutralizer is added into each liter of backwashing wastewater, and 1.5-2.5g of the flocculant is added into each liter of the backwashing wastewater.
Preferably: the filter tank is internally provided with double layers of filter screens, the pores of each layer of filter screen are different, and the pores of the filter screens are sequentially reduced from high to low so as to ensure that impurities in the backwashing wastewater are better filtered.
Preferably: the flocculation tank is added with a coagulant aid in the flocculation process so as to accelerate the formation of floccules in the wastewater.
Preferably: 0.6-0.8g of coagulant aid is added into each liter of backwashing wastewater.
Preferably: the reverse osmosis treatment is to separate the solute from the solvent in the domestic sewage by means of selective interception of a semipermeable membrane which allows only water to permeate but not other substances under the action of pressure higher than the osmotic pressure of the domestic sewage.
Preferably: and an ultrafiltration membrane is arranged in the ultrafiltration tank, and the pore size of the ultrafiltration membrane is 0.1-0.2 mu m.
Preferably, the following components: the microfiltration tank is internally provided with a microfiltration membrane, and the pore size of the microfiltration membrane is 0.3-0.4 mu m.
Preferably: the high-efficiency fiber filter is pressure type fiber filter equipment with excellent performance and advanced structure, the high-efficiency fiber filter has no easily damaged parts, the operation is simple, the adjustment of the fiber density is skillfully adjusted through a special device in the equipment by waterpower, and a fiber bundle filter material fixing and movably connecting traction device is arranged in the high-efficiency fiber filter accessory.
The difference between the fourth embodiment and the third embodiment is that double-layer filter screens are arranged in the filter tank, the pores of each layer of filter screen are different, and the pores of the filter screens are sequentially reduced from high to low so as to ensure that impurities in the backwashing wastewater are better filtered, and the treatment effect of the backwashing wastewater is ensured and the treatment efficiency of the backwashing wastewater is improved on the basis of subsequent treatment.
Through stirring high turbidity backwash waste water, prefilter, flocculation, depth filtration, water quality testing, reverse osmosis treatment and neutralization treatment, thereby accomplish the processing to high turbidity backwash waste water, the treatment effect is very good, make it can carry out better utilization, utilize in each field, the water economy resource, avoid simply handling the pollution that direct discharge caused to the environment, through setting up the water quality testing pond, thereby confirm operating procedure on next step according to the content of impurity in the backwash waste water, so that better handle backwash waste water, ensure the treatment effect of backwash waste water, improve the treatment effeciency of backwash waste water.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (10)
1. A method for utilizing high-turbidity backwashing wastewater of a filter is characterized by comprising the following steps:
the method comprises the following steps: stirring the high-turbidity backwashing wastewater;
step two: preliminary filtering of high-turbidity backwashing wastewater;
step three: flocculation of high turbidity backwashing wastewater;
step four: deep filtration of high-turbidity backwashing wastewater;
step five: detecting the water quality of the high-turbidity backwashing wastewater;
step six: reverse osmosis treatment of high turbidity backwash wastewater;
step seven: and (4) neutralizing the high-turbidity backwashing wastewater.
2. The method for utilizing high-turbidity backwashing wastewater of the filter according to claim 1, wherein a chlorine neutralizer is added into the backwashing wastewater and highly stirred, the stirred backwashing wastewater enters a filter tank to complete simple preliminary filtering of the backwashing wastewater, large granular impurities in the backwashing wastewater are filtered out, the filtered backwashing wastewater enters a flocculation tank, a flocculating agent is added into the tank and slightly stirred to flocculate the backwashing wastewater to form a flocculent body, the backwashing wastewater forming the flocculent body is deeply filtered through a high-efficiency fiber filter to filter out the flocculent body and small impurities in the backwashing wastewater, the backwashing wastewater after deep filtering is sent into a water quality detection tank to be subjected to water quality detection, the backwashing wastewater containing the heavy impurities in the water body is sent back to the flocculation tank again, and the fourth step and the fifth step are repeated, until the water quality testing result is qualified, send into the backwash waste water after the depth filtration and carry out water quality testing in the water quality testing pond, the backwash waste water that contains moderate impurity in the water sends into the ultrafiltration pond, carry out ultrafiltration treatment, send into the backwash waste water after the depth filtration and carry out water quality testing in the water quality testing pond, the backwash waste water that contains mild impurity in the water sends into the microfiltration pond, carry out microfiltration treatment, backwash waste water after handling in ultrafiltration pond and the microfiltration pond sends into the reverse osmosis pond and carries out reverse osmosis treatment, utilize reverse osmosis treatment's separation characteristic, get rid of the dissolved salt in the backwash waste water, the colloid, the organic matter, the bacterium, microorganism impurity, at last send into the water after handling and carry out pH value in final neutralization pond and adjust, be convenient for backwash waste water's utilization.
3. The method for utilizing high turbidity backwashing wastewater of filter of claim 2, wherein the addition amount of said chlorine neutralizer is 0.5-0.8g per liter of backwashing wastewater, and 1.5-2.5g flocculant per liter of backwashing wastewater.
4. The method for utilizing high-turbidity backwashing wastewater of the filter according to claim 2, wherein double layers of filter screens are arranged in the filter tank, the pores of each layer of filter screen are different, and the pores of the filter screens are sequentially reduced from high to low, so as to ensure better filtration of impurities in the backwashing wastewater.
5. The method for utilizing high turbidity backwashing wastewater of the filter of claim 2, wherein a coagulant aid is added into the flocculation tank during the flocculation process to accelerate the formation of flocs in the wastewater.
6. The method for utilizing high turbidity backwashing wastewater of filter of claim 5, wherein 0.6-0.8g of coagulant aid is added per liter of backwashing wastewater.
7. The method for utilizing high turbidity backwash wastewater of filter according to claim 2, wherein the reverse osmosis treatment is to separate the solute from the solvent in the domestic wastewater by means of selective interception by a semipermeable membrane which allows only water to permeate but not other substances under the pressure higher than the osmotic pressure of the domestic wastewater.
8. The method for utilizing the high-turbidity backwashing wastewater of the filter according to claim 2, wherein an ultrafiltration membrane is arranged in the ultrafiltration tank, and the pore size of the ultrafiltration membrane is 0.1-0.2 μm.
9. The method for utilizing high-turbidity backwashing wastewater of the filter as claimed in claim 2, wherein a microfiltration membrane is arranged in the microfiltration tank, and the pore size of the microfiltration membrane is 0.3-0.4 μm.
10. The method for utilizing the high turbidity backwashing wastewater of the filter according to claim 2, wherein the high efficiency fiber filter is a pressure type fiber filter device with excellent performance and advanced structure, the high efficiency fiber filter has no wearing parts, the operation is simple, the adjustment of the fiber density is skillfully adjusted by water power through a special device in the device, and a fiber bundle filtering material fixing and movably connecting traction device is arranged in the high efficiency fiber filter fitting.
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| CN202210104537.7A Pending CN115043512A (en) | 2022-01-28 | 2022-01-28 | Method for utilizing high-turbidity backwashing wastewater of filter |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203440183U (en) * | 2013-08-22 | 2014-02-19 | 国家电网公司 | Deep treatment system of mine gangue dredge discharged water recycling power plant |
| CN107879557A (en) * | 2017-11-30 | 2018-04-06 | 成都问达茂源科技有限公司 | The processing method and control method of rice-washing waste water |
| CN110330139A (en) * | 2019-06-28 | 2019-10-15 | 滨海县渠南自来水有限公司 | A kind of waterworks water treatment system |
-
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203440183U (en) * | 2013-08-22 | 2014-02-19 | 国家电网公司 | Deep treatment system of mine gangue dredge discharged water recycling power plant |
| CN107879557A (en) * | 2017-11-30 | 2018-04-06 | 成都问达茂源科技有限公司 | The processing method and control method of rice-washing waste water |
| CN110330139A (en) * | 2019-06-28 | 2019-10-15 | 滨海县渠南自来水有限公司 | A kind of waterworks water treatment system |
Non-Patent Citations (1)
| Title |
|---|
| 符九龙主编: "《环境工程设计手册（修订版）》", 中国建筑工业出版社, pages: 311 - 405 * |
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