CN107473341A - Magnetic flocculation improves the experimental method of Sweet potato starch wastewater treatment effeciency - Google Patents
Magnetic flocculation improves the experimental method of Sweet potato starch wastewater treatment effeciency Download PDFInfo
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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
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/488—Treatment of water, waste water, or sewage with magnetic or electric fields for separation of magnetic materials, e.g. magnetic flocculation
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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
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/32—Nature of the water, waste water, sewage or sludge to be treated from the food or foodstuff industry, e.g. brewery waste waters
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/11—Turbidity
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/16—Total nitrogen (tkN-N)
Abstract
The invention discloses the experimental method that magnetic flocculation improves Sweet potato starch wastewater pretreatment efficiency, including：The Sweet potato starch wastewater that collection Starch Production enterprise directly discharges, and determine pH value, turbidity, TP and the TN of waste water；Six equal portions are taken from the waste water after measure as experiment wastewater；Prepare PAC solution, PAM solution and magnetic；Carry out the measure of flocculating experiment factor respectively using six parts of waste water, the empirical factor of measure is followed successively by pH value, PAC injected volumes, PAM injected volumes, order of adding, stir speed (S.S.) and sedimentation time；The at most individual beaker of the equal decile of every part of waste water is tested；The supernatant of multiple beakers in same group is taken, determines TN, TP and turbidity of multiple beaker supernatants in same group respectively, calculates the clearance of each beaker in same group, draws the optimal flocculation parameter of corresponding testing factor.The present invention can largely solve the problems, such as China's Sweet potato starch wastewater pollution, improve the Technical Economy of engineering, can mitigate successive depths wastewater treatment load significantly.
Description
Technical field
The invention belongs to Farm products processing technology field, and in particular to magnetic flocculation improves Sweet potato starch wastewater pretreatment
The experimental method of efficiency.
Background technology
Sweet potato also known as sweet potato, red taro, sweet potato, sweet potato etc., sweet potato rich in protein, starch, pectin, cellulose, amino acid,
Vitamin and several mineral materials, there is the reputation of " life prolonging food "；Sugar content reaches 15%-20%.There are anticancer, cardioprotection, prevention
Pulmonary emphysema, diabetes, fat-reducing and other effects.
Sweet potato is distributed more widely in China, and caused Sweet potato starch wastewater discharge is as rivers, lake in its process
One of main pollution sources in agricultural non-point source pollution；Starch processing is general with significant seasonal feature, production cycle
For the March in late September to the coming year, the concentration of production and starch wastewater discharge capacity is larger[1]；Flocculence as traditional waste water at
Reason method, suspension in waste water, colloid and the other materials conglomerate that can flocculate can be settled removal, there is investment
Few, sinking speed is fast, flocculation group particle is closely knit, except the advantages that turbidity effect is good, Engineering operation is easy.
Magnetic is added in flocculation process can make in waste water suspended particulate form magnetic flco and fast under the influence of a magnetic field
Speed sedimentation, flocculating property are obviously improved.Magnetic flocculation technology, i.e., be inoculated with by magnetic, with high molecular polymer aluminium polychloride
(PAC) flocculation aid is used as flocculant, organic polymer coargulator polyacrylamide (PAM), pollutant is flocculated with magnetic
It is combined, is formed with magnetic floccule body, makes to separate with water body with magnetic floccule body under magnetic fields, so as to reach
The purpose of pollutant is removed, therefore is particularly important using flocculation process processing Sweet potato starch wastewater.
The content of the invention
It is specific logical it is an object of the invention to provide the experimental method that magnetic flocculation improves Sweet potato starch wastewater pretreatment efficiency
Cross following technical scheme realization：
Magnetic flocculation improves the experimental method of Sweet potato starch wastewater pretreatment efficiency, and it comprises the following steps：
Step 1: the Sweet potato starch wastewater that collection Starch Production enterprise directly discharges, and determine the pH value of waste water, turbidity,
TP and TN；Six equal portions are taken from the waste water after measure as experiment wastewater, every part is 500ml；Prepare the PAC as flocculant
Solution, the PAM solution as flocculation aid, prepare the magnetic as flocculation nucleome；
Step 2: carry out the measure of flocculating experiment factor, the empirical factor of measure respectively using six parts of waste water in step 1
It is followed successively by pH value, PAC injected volumes, PAM injected volumes, order of adding, stir speed (S.S.) and sedimentation time；Every part of experiment wastewater equalization
Divide in multiple beakers, unique variable when beaker determines in same group is factor to be determined；
Step 3：Take in step 2 with the supernatant of multiple beakers in group, determine multiple beaker supernatants in same group respectively
TN, TP and turbidity, calculate the clearance of each beaker in same group, draw the optimal flocculation parameter of corresponding testing factor.
Further, it is as follows to the determination experiment step for pH value of flocculating in step 2：
(1) a experiment wastewater equivalent is placed in six beakers, with 7%NaOH by the pH value of solution in six beakers
6,7,8,9,10,11 are adjusted to successively；(2) 3mL PAC, 0.5mL PAM, 30mg magnetics are added in each beaker, with 100r/
In min stirring beakers after solution 1min, beaker is placed on magnet and stands 30min；(3) each beaker supernatant is taken to determine respectively
TN, TP and turbidity, clearance is calculated, draw optimal flocculation pH value.
Further, the mensuration mode of PAC injected volumes is as follows in step 2：
(1) a experiment wastewater equivalent is taken to be placed in six beakers, solution acid alkalinity is adjusted to most preferably wad a quilt with cotton in beaker
Solidifying pH value；(2) 30mg magnetics are added in each beaker, launched respectively into six beakers 1mL, 2mL, 3mL, 4mL, 5mL,
6mL PAC solution, after solution 1min in 100r/min stirring beakers, beaker is placed on magnet and stands 30min；(3) take every
Individual beaker supernatant determines TN, TP and turbidity respectively, calculates clearance, draws optimal flocculation PAC injected volumes.
Further, the mensuration mode of PAM injected volumes is as follows in step 2：
(1) a experiment wastewater equivalent is taken to be placed in five beakers, solution acid alkalinity is adjusted to most preferably wad a quilt with cotton in beaker
PH value is coagulated, the PAC of optimal injected volume is put into beaker；(2) respectively into five beakers launch 1mL, 2mL, 3mL, 4mL,
5mL PAM solution, 30mg magnetics are added into five beakers respectively, after solution 1min in 100r/min stirring beakers, will burnt
Cup, which is placed on magnet, stands 30min；(3) take each beaker supernatant to determine TN, TP and turbidity respectively, calculate clearance, draw
Optimal flocculation PAM injected volumes.
Further, the mensuration mode of order of adding is as follows in step 2：
(1) a experiment wastewater equivalent is taken to be placed in six beakers, solution acid alkalinity is adjusted to most preferably wad a quilt with cotton in beaker
Solidifying pH value；(2) PAC solution, the PAM solution and six parts of 30mg magnetic of six parts of optimal injected volumes of six parts of optimal injected volumes are configured
Powder, the PAC solution of configuration, PAM solution, 30mg magnetics are respectively put into six beakers with different order of adding；(3) with
In 100r/min stirring beakers after solution 1min, beaker is placed on magnet and stands 30min；(4) each beaker supernatant point is taken
Not Ce Ding TN, TP and turbidity, calculate clearance, draw the optimal order of adding of PAC, PAM and magnetic.
Further, the mensuration mode of stir speed (S.S.) is as follows in step 2：
(1) a experiment wastewater equivalent is taken to be placed in six beakers, solution acid alkalinity is adjusted to most preferably wad a quilt with cotton in beaker
Solidifying pH value, it is put into PAC, the PAM and 30mg of optimal injected volume of optimal injected volume into beaker respectively with optimal order of adding
Magnetic；(2) six burnings are stirred with 50r/min, 100r/min, 150r/min, 200r/min, 250r/min, 300r/min respectively
In cup after solution 1min, beaker is placed on magnet and stands 30min；(3) each beaker supernatant is taken to determine TN, TP and turbid respectively
Degree, clearance is calculated, draws optimal stir speed (S.S.).
Further, the mensuration mode of sedimentation time is as follows in step 2：
(1) a experiment wastewater equivalent is taken to be placed in six beakers, solution acid alkalinity is adjusted to most preferably wad a quilt with cotton in beaker
Solidifying pH value, it is put into PAC, the PAM and 30mg of optimal injected volume of optimal injected volume into beaker respectively with optimal order of adding
Magnetic；(2) after with solution 1min in optimal stir speed (S.S.) stirring beaker, beaker is placed on magnet and stood；(3) six are taken respectively
Beaker stand 10min, 20min, 30min, 40min, 50min, 60min when supernatant, respectively determine supernatant TN, TP and
Turbidity, clearance is calculated, draws the optimal standing sedimentation time.
Further, polyacrylamide solution that the PAC is 1% polymeric aluminum chlorides solution, PAM are 0.1%, magnetic
For Fe3O4。
The beneficial effects of the invention are as follows：
(1) the invention provides the experimental method that magnetic flocculation improves Sweet potato starch wastewater pretreatment efficiency, with PAC, PAM and
Magnetic compounding magnetic flocculation pretreatment Sweet potato starch wastewater, by studying different pH, dosage, order of adding, sedimentation time and stirring
The influence of speed and sedimentation time to magnetic flocculation effect is mixed, the optimum flocculating condition of Sweet potato starch wastewater magnetic flocculation is obtained, is
The further processing of Sweet potato starch wastewater provides the reference of science, is adapted to popularization and application, can largely solve China sweet potato
The problem of starch wastewater pollutes.
(2) for the present invention by the use of magnetic as flocculation nucleome, the flco compacted mass of formation, turbidity removal effect is fine, mitigates
Subsequent treatment load, magnetic can realize the separation and recovery with flco as a kind of material being efficiently easy to get after flocculation, from
And engineer applied cost is reduced, the Technical Economy of engineering is improved, successive depths wastewater treatment load can be mitigated significantly.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, forms the part of the application, this hair
Bright schematic description and description is used to explain the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is PH of the present invention to Sweet potato starch wastewater magnetic flocculation effect tendency figure.
Fig. 2 is PAC of the present invention to Sweet potato starch wastewater magnetic flocculation effect tendency figure.
Fig. 3 is PAM of the present invention to Sweet potato starch wastewater magnetic flocculation effect tendency figure.
Fig. 4 is that PAC, PAM of the present invention and magnetic difference order of adding correspond to clearance chart.
Fig. 5 is stir speed (S.S.) of the present invention to Sweet potato starch wastewater magnetic flocculation effect tendency figure.
Fig. 6 is the sedimentation time of the invention to Sweet potato starch wastewater magnetic flocculation effect tendency figure.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Embodiment 1：
Magnetic flocculation improves the experimental method of Sweet potato starch wastewater pretreatment efficiency, and it comprises the following steps：
Step 1: the Sweet potato starch wastewater that collection Starch Production enterprise directly discharges, and determine the pH value of waste water, turbidity,
TP and TN；Six equal portions are taken from the waste water after measure as experiment wastewater, every part is 500ml；Prepare the PAC as flocculant
Solution, the PAM solution as flocculation aid, prepare the magnetic as flocculation nucleome；The PAC be 1% polymeric aluminum chlorides solution,
Polyacrylamide solution that PAM is 0.1%, magnetic Fe3O4；
Step 2: carry out the measure of flocculating experiment factor, the empirical factor of measure respectively using six parts of waste water in step 1
It is followed successively by pH value, PAC injected volumes, PAM injected volumes, order of adding, stir speed (S.S.) and sedimentation time；Every part of experiment wastewater equalization
Divide in multiple beakers, unique variable when beaker determines in same group is factor to be determined；
Step 3：Take in step 2 with the supernatant of multiple beakers in group, determine multiple beaker supernatants in same group respectively
TN, TP and turbidity, calculate the clearance of each beaker in same group, analyze influence of the corresponding testing factor to waste water flocculating and become
Gesture, draw the optimal flocculation parameter of corresponding testing factor；
Wherein, TN uses Ammonium Molybdate Spectrophotometric Method for Determination using alkaline chitinase resolution spectrophotometry, TP,
Turbidity is measured using portable turbidimetry；
The clearance calculation formula is：Clearance=(1-AWater outlet/AWater inlet) × 100%
In formula：AWater outletFor turbidity (NTU), TP (mg/L), TN (mg/L) value after flocculation water outlet, AWater inletFor the turbid of flocculation advancing water
Spend (NTU), TP (mg/L), TN (mg/L) value.
Further, it is as follows to the determination experiment step for pH value of flocculating in step 2：
(1) a experiment wastewater equivalent is placed in six beakers, with 7%NaOH by the pH value of solution in six beakers
6,7,8,9,10,11 are adjusted to successively；(2) 3mL PAC, 0.5mL PAM, 30mg magnetics are added in each beaker, with 100r/
In min stirring beakers after solution 1min, beaker is placed on magnet and stands 30min；(3) each beaker supernatant is taken to determine respectively
TN, TP and turbidity, clearance is calculated, draw optimal flocculation pH value.
Referring to Fig. 1, pH has a great influence to the removal effect of Sweet potato starch wastewater TP, turbidity, in acid condition, TN, TP
And turbidity flocculation removal effect is bad；In the basic conditions, as pH increases, turbidity, TP clearance significantly increase, and TN's goes
Except the rate rate of climb is then relatively small, as pH=10, the clearance of turbidity, TP and TN tends towards stability, and draws optimal flocculation pH
=10.
Further, the mensuration mode of PAC injected volumes is as follows in step 2：
(1) a experiment wastewater equivalent is taken to be placed in six beakers, pH value of solution is adjusted to 10 in beaker；(2) it is each
30mg magnetics are added in beaker, launch 1mL, 2mL, 3mL, 4mL, 5mL, 6mL PAC solution into six beakers respectively, with
In 100r/min stirring beakers after solution 1min, beaker is placed on magnet and stands 30min；(3) each beaker supernatant point is taken
Not Ce Ding TN, TP and turbidity, calculate clearance, draw optimal flocculation PAC injected volumes.
Referring to Fig. 2, with the increase of PAC dosages, flco volume also gradually increases, the removal of turbidity of wastewater, TP and TN
Rate is significantly improved, and clearance highest can respectively reach 77.63%, 80.14% and 19.01%, when dosage improves from 1mL
During to 4mL, the trend being gradually increasing is presented in the clearance of turbidity, TP and TN, and as PAC dosage ＞ 4mL, drop is presented in clearance
Low tendency, it is to add 24ml per in 500ml waste water to draw PAC optimum dosages.
Further, the mensuration mode of PAM injected volumes is as follows in step 2：
(1) a experiment wastewater equivalent is taken to be placed in five beakers, pH value of solution is adjusted to 10 in beaker, in beaker
Add 4.8ml PAC solution；(2) 1mL, 2mL, 3mL, 4mL, 5mL PAM solution are launched into five beakers respectively, respectively
30mg magnetics are added into five beakers, after solution 1min in 100r/min stirring beakers, beaker is placed on magnet and stood
30min；(3) take each beaker supernatant to determine TN, TP and turbidity respectively, calculate clearance, show that optimal flocculation PAM is launched
Amount.
Referring to Fig. 3, when PAM dosages are 2mL, the clearance of turbidity, TP and TN has respectively reached 80.1%, 84.31%
With 36%, as PAM dosage ＞ 2mL, reduction trend is presented in the removal efficiency for reducing pollutant, draws PAM optimum dosages
To add 10ml in every 500ml waste water.
Referring to Fig. 2, Fig. 3, experiment shows, PAC and PAM, magnetic compounding is more better than PAC is used alone, and flco is more
Add compacted mass, the removal effect ratio of turbidity, TP and TN is used alone PAC and has been respectively increased 2.47%, 3.47% and 17%.
Further, the mensuration mode of order of adding is as follows in step 2：
(1) a experiment wastewater equivalent is taken to be placed in six beakers, pH value of solution is adjusted to 10 in beaker；(2) configure
The PAM solution and six parts of 30mg magnetics of six parts of 4ml PAC solution, six parts of 1.66ml, with different order of adding by configuration
PAC solution, PAM solution, 30mg magnetics are respectively put into six beakers；(3) after with solution 1min in 100r/min stirring beakers,
Beaker is placed on magnet and stands 30min；(4) take each beaker supernatant to determine TN, TP and turbidity respectively, calculate clearance,
Draw the optimal order of adding of PAC, PAM and magnetic.
1. 2. 3. referring to Fig. 4, the sequence number of PAC, PAM and magnetic is respectively that, the clearance contrasted in six beakers is understood, first
Magnetic is added, then it is optimal order of adding successively to add PAC and PAM.
Further, the mensuration mode of stir speed (S.S.) is as follows in step 2：
(1) a experiment wastewater equivalent is taken to be placed in six beakers, pH value of solution is adjusted to 10 in beaker；Configuration six
The PAM solution and six parts of 30mg magnetics of part 4ml PAC solution, six parts of 1.66ml, be put into respectively into beaker successively magnetic,
PAC、PAM；(2) six are stirred with 50r/min, 100r/min, 150r/min, 200r/min, 250r/min, 300r/min respectively
In beaker after solution 1min, beaker is placed on magnet and stands 30min；(3) take each beaker supernatant determine respectively TN, TP and
Turbidity, clearance is calculated, draws optimal stir speed (S.S.).
Referring to Fig. 5, it is known that stir speed (S.S.) has certain influence on turbidity, TP and TN, and stir speed (S.S.) is in 100r/min, TP
Clearance reach 88%, for stir speed (S.S.) in 150r/min, turbidity and TN clearance respectively reach 95.5% He
42.37%, as stir speed (S.S.) ＞ 150r/min, removal efficiency is decreased obviously；Therefore optimal flocculation stirring speed for 100~
Between 150r/min, it can be specifically adjusted according to requirement of the reality to TP clearances.
Further, the mensuration mode of sedimentation time is as follows in step 2：
(1) a experiment wastewater equivalent is taken to be placed in six beakers, pH value of solution is adjusted to 10 in beaker；Configuration six
The PAM solution and six parts of 30mg magnetics of part 4ml PAC solution, six parts of 1.66ml, be put into respectively into beaker successively magnetic,
PAC、PAM；(2) after with solution 1min in 100~150r/min speed stirring beaker, beaker is placed on magnet and stood；(3) divide
Supernatant during six beakers standing 10min, 20min, 30min, 40min, 50min, 60min is not taken, determines supernatant respectively
TN, TP and turbidity, calculate clearance, draw the optimal standing sedimentation time.
Referring to Fig. 6, removal effect basically reaches stabilization after flocculation sediment 40min, and removal efficiency rises gradually slow afterwards
Slowly, when the flocculation sediment time is small up to 1, the clearance highest of turbidity, TP and TN can be respectively up to 95.32%, 93.81% and
38.13%, therefore the optimal sedimentation time is 60min.
In summary, compounded using high polymer coagulant PAC and flocculation aid PAM, add a certain amount of magnetic, can make red
Sweet potato starch Wastewater Pretreatment reaches ideal effect；
Optimal starch wastewater flocculation factor parameter is：(1) pH value of solution=10；(2) PAC dosages are per 500ml waste water
In add 24ml；(3) PAM dosages are to add 10ml per in 500ml waste water；(4) release sequence be followed successively by magnetic, PAC and
PAM；(5) flocculation stirring speed be 100~150r/min (6) the flocculating setting time be 60min.
Each empirical factor obtains to carry out supplement confirmatory experiment under optimal flocculation Parameter Conditions after handling waste water：Water outlet is turbid
Spend for 22.79NTU, TP 0.56mg/L, TN 27.47mg/L.The clearance of turbidity, TP and TN is respectively 96.32%,
94.81% and 39.13%.
The present invention is by studying different pH, dosage, order of adding, sedimentation time and stir speed (S.S.) and sedimentation time pair
The influence of magnetic flocculation effect, the optimum flocculating condition of Sweet potato starch wastewater magnetic flocculation is obtained, be the further of Sweet potato starch wastewater
Processing provides the reference of science；By the use of magnetic as flocculation nucleome, the flco compacted mass of formation, turbidity removal effect is fine,
Subsequent treatment load is alleviated, magnetic can realize the separation with flco with returning as a kind of material being efficiently easy to get after flocculation
Receive, so as to reduce engineer applied cost, improve the Technical Economy of engineering, successive depths sewage disposal can be mitigated significantly and born
Lotus.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. magnetic flocculation improves the experimental method of Sweet potato starch wastewater pretreatment efficiency, it is characterised in that comprises the following steps：
Step 1: the Sweet potato starch wastewater that collection Starch Production enterprise directly discharges, and determine the pH value of waste water, turbidity, TP with
And TN；Six equal portions are taken from the waste water after measure as experiment wastewater, every part is 500ml；Prepare molten as the PAC of flocculant
Liquid, the PAM solution as flocculation aid, prepare the magnetic as flocculation nucleome；
Step 2: carrying out the measure of flocculating experiment factor respectively using six parts of waste water in step 1, the empirical factor of measure is successively
For pH value, PAC injected volumes, PAM injected volumes, order of adding, stir speed (S.S.) and sedimentation time；Every part of experiment wastewater is aliquoted in
In multiple beakers, unique variable when beaker determines in same group is factor to be determined；
Step 3：Take in step 2 with the supernatant of multiple beakers in group, determine respectively the TN of multiple beaker supernatants in same group,
TP and turbidity, the clearance of each beaker in same group is calculated, draw the optimal flocculation parameter of corresponding testing factor.
2. magnetic flocculation according to claim 1 improves the experimental method of Sweet potato starch wastewater pretreatment efficiency, its feature exists
In as follows to the determination experiment step for pH value of flocculating in step 2：
（1）A experiment wastewater equivalent is placed in six beakers, with 7%NaOH by the pH value of solution in six beakers successively
It is adjusted to 6,7,8,9,10,11；（2）3mL PAC, 0.5mL PAM, 30mg magnetics are added in each beaker, with 100r/min
In stirring beaker after solution 1min, beaker is placed on magnet and stands 30min；（3）Take each beaker supernatant determine respectively TN,
TP and turbidity, clearance is calculated, draw optimal flocculation pH value.
3. magnetic flocculation according to claim 1 improves the experimental method of Sweet potato starch wastewater pretreatment efficiency, its feature exists
In the mensuration mode of PAC injected volumes is as follows in step 2：
（1）A experiment wastewater equivalent is taken to be placed in six beakers, solution acid alkalinity is adjusted to the pH that most preferably flocculates in beaker
Value；（2）30mg magnetics are added in each beaker, launch 1mL, 2mL, 3mL, 4mL, 5mL, 6mL into six beakers respectively
PAC solution, after solution 1min in 100r/min stirring beakers, beaker is placed on magnet and stands 30min；（3）Take each burning
Cup supernatant determines TN, TP and turbidity respectively, calculates clearance, draws optimal flocculation PAC injected volumes.
4. magnetic flocculation according to claim 1 improves the experimental method of Sweet potato starch wastewater pretreatment efficiency, its feature exists
In the mensuration mode of PAM injected volumes is as follows in step 2：
（1）A experiment wastewater equivalent is taken to be placed in five beakers, solution acid alkalinity is adjusted to the pH that most preferably flocculates in beaker
It is worth, the PAC of optimal injected volume is put into beaker；（2）1mL, 2mL, 3mL, 4mL, 5mL are launched into five beakers respectively
PAM solution, 30mg magnetics are added into five beakers respectively, after solution 1min in 100r/min stirring beakers, beaker is put
In standing 30min on magnet；（3）Take each beaker supernatant to determine TN, TP and turbidity respectively, calculate clearance, draw optimal
Flocculate PAM injected volumes.
5. magnetic flocculation according to claim 1 improves the experimental method of Sweet potato starch wastewater pretreatment efficiency, its feature exists
In the mensuration mode of order of adding is as follows in step 2：
（1）A experiment wastewater equivalent is taken to be placed in six beakers, solution acid alkalinity is adjusted to the pH that most preferably flocculates in beaker
Value；（2）PAC solution, the PAM solution and six parts of 30mg magnetics of six parts of optimal injected volumes of six parts of optimal injected volumes are configured,
The PAC solution of configuration, PAM solution, 30mg magnetics are respectively put into six beakers with different order of adding；（3）With 100r/
In min stirring beakers after solution 1min, beaker is placed on magnet and stands 30min；（4）Each beaker supernatant is taken to determine respectively
TN, TP and turbidity, clearance is calculated, draw the optimal order of adding of PAC, PAM and magnetic.
6. magnetic flocculation according to claim 1 improves the experimental method of Sweet potato starch wastewater pretreatment efficiency, its feature exists
In the mensuration mode of stir speed (S.S.) is as follows in step 2：
（1）A experiment wastewater equivalent is taken to be placed in six beakers, solution acid alkalinity is adjusted to the pH that most preferably flocculates in beaker
Value, it is put into PAC, PAM the and 30mg magnetics of optimal injected volume of optimal injected volume into beaker respectively with optimal order of adding；
（2）Respectively six burnings are stirred with 50r/min, 100 r/min, 150 r/min, 200 r/min, 250 r/min, 300 r/min
In cup after solution 1min, beaker is placed on magnet and stands 30min；（3）Each beaker supernatant is taken to determine TN, TP and turbid respectively
Degree, clearance is calculated, draws optimal stir speed (S.S.).
7. magnetic flocculation according to claim 1 improves the experimental method of Sweet potato starch wastewater pretreatment efficiency, its feature exists
In the mensuration mode of sedimentation time is as follows in step 2：
（1）A experiment wastewater equivalent is taken to be placed in six beakers, solution acid alkalinity is adjusted to the pH that most preferably flocculates in beaker
Value, it is put into PAC, PAM the and 30mg magnetics of optimal injected volume of optimal injected volume into beaker respectively with optimal order of adding；
（2）After solution 1min in optimal stir speed (S.S.) stirring beaker, beaker is placed on magnet and stood；（3）Six beakers are taken respectively
Supernatant when 10min, 20 min, 30min, 40min, 50 min, 60min is stood, determines TN, TP of supernatant and turbid respectively
Degree, clearance is calculated, draws the optimal standing sedimentation time.
8. magnetic flocculation according to claim 1 improves the experimental method of Sweet potato starch wastewater pretreatment efficiency, its feature exists
In：Polyacrylamide solution that polymeric aluminum chlorides solution that the PAC is 1%, PAM are 0.1%, magnetic Fe3O4。
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108328715A (en) * | 2018-02-10 | 2018-07-27 | 安徽省环境科学研究院 | The experimental method of Sweet potato starch wastewater is handled using biological flocculant chitosan |
| CN114057322A (en) * | 2021-11-10 | 2022-02-18 | 遵义师范学院 | Flocculation method for treating municipal road washing wastewater |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104098201A (en) * | 2013-04-02 | 2014-10-15 | 四川科伦药物研究有限公司 | Treatment method for starch wastewater |
| CN104418415A (en) * | 2013-08-28 | 2015-03-18 | 天津市市政工程设计研究院 | Landscape water body emergency treatment method based on magnetic loading coagulation technology |
| CN104556538A (en) * | 2013-10-18 | 2015-04-29 | 中国石油化工股份有限公司 | Treatment method for nitrile rubber production wastewater |
| CN105384301A (en) * | 2014-09-03 | 2016-03-09 | 中国石油化工股份有限公司 | Nitrile butadiene rubber production wastewater treatment method |
| CN105692825A (en) * | 2016-01-21 | 2016-06-22 | 天津大学 | Pumping station drainage device for fast processing rainwater by utilizing magnetic flocculation technology and processing method thereof |
-
2017
- 2017-09-15 CN CN201710833156.1A patent/CN107473341A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104098201A (en) * | 2013-04-02 | 2014-10-15 | 四川科伦药物研究有限公司 | Treatment method for starch wastewater |
| CN104418415A (en) * | 2013-08-28 | 2015-03-18 | 天津市市政工程设计研究院 | Landscape water body emergency treatment method based on magnetic loading coagulation technology |
| CN104556538A (en) * | 2013-10-18 | 2015-04-29 | 中国石油化工股份有限公司 | Treatment method for nitrile rubber production wastewater |
| CN105384301A (en) * | 2014-09-03 | 2016-03-09 | 中国石油化工股份有限公司 | Nitrile butadiene rubber production wastewater treatment method |
| CN105692825A (en) * | 2016-01-21 | 2016-06-22 | 天津大学 | Pumping station drainage device for fast processing rainwater by utilizing magnetic flocculation technology and processing method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 胡家伟等: "磁絮凝在强化处理受污染河水中的应用", 《中国给水排水》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108328715A (en) * | 2018-02-10 | 2018-07-27 | 安徽省环境科学研究院 | The experimental method of Sweet potato starch wastewater is handled using biological flocculant chitosan |
| CN114057322A (en) * | 2021-11-10 | 2022-02-18 | 遵义师范学院 | Flocculation method for treating municipal road washing wastewater |
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