CN108558065A - A method of handling saliferous pickle wastewater using process integration - Google Patents
A method of handling saliferous pickle wastewater using process integration Download PDFInfo
- Publication number
- CN108558065A CN108558065A CN201810287042.6A CN201810287042A CN108558065A CN 108558065 A CN108558065 A CN 108558065A CN 201810287042 A CN201810287042 A CN 201810287042A CN 108558065 A CN108558065 A CN 108558065A
- Authority
- CN
- China
- Prior art keywords
- saliferous
- pickle
- pickle wastewater
- wastewater
- handling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/04—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising compounds of alkali metals, alkaline earth metals or magnesium
- B01J20/043—Carbonates or bicarbonates, e.g. limestone, dolomite, aragonite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
- B01J20/16—Alumino-silicates
- B01J20/165—Natural alumino-silicates, e.g. zeolites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/32—Manganese, technetium or rhenium
- B01J23/34—Manganese
-
- 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
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
-
- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Hydrology & Water Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Inorganic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Materials Engineering (AREA)
- Water Treatment By Sorption (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
The invention discloses a kind of methods handling saliferous pickle wastewater using process integration, solve the prior art and there is technical issues that consume big, chemical reagent during processes composition complexity waste water comprising following steps：By the cleaning generated during pickle production and dipping composite waste, the substep Combined Treatment through pretreatment/adsorption treatment/advanced oxidation/advanced treating of flocculating finally obtains water outlet.Compared with prior art, flocculation adsorption/advanced oxidation/ion exchange is cooperated with saliferous pickle wastewater, 98.5% or more processed waste water SS removal rates, COD removal rates 95 98%, ammonia nitrogen removal frank 85 96%, 97% or more total tp removal rate by the present invention；The leading indicators such as COD, SS, ammonia nitrogen, total phosphorus can reach 2002 integrated wastewater discharge standard primary standards of GB8978.Combined Treatment reduces pickle wastewater major pollutants, is conducive to the progress of subsequent processing, has broad application prospects for the processing of brine waste for pickles factory and treating stations.
Description
Technical field
The present invention relates to Waste Disposal Technology fields more particularly to a kind of use process integration to handle saliferous pickle wastewater
Method.
Background technology
Pickles have long manufacturing history as a kind of flavor cuisines, in China, deep to be welcome by consumers in general.
2016,3,600,000 tons of Pickles, Sichuan Style yield, 31,000,000,000 yuan of the output value accounted for about the 70% of national pickles yield.It is expected that 2017, pickles
Yield will be up to 3,800,000 tons, the output value up to 32,000,000,000 yuan.With the rapid growth of industry size, along with problem of environmental pollution not yet
It is disconnected to aggravate, a large amount of brine waste is will produce in the industrialized production of pickles, main succession is plant fiber, plant ammonia
Base acid, organic acid, alcohols and containing a variety of inorganic elements such as a large amount of salt and calcium and magnesium, therefore have the spies such as high COD, high nitrogen phosphorus
Point, intractability are big.
Saliferous pickle wastewater treatment technology can be divided into bioanalysis, chemical method, Physical at present.
Wang Zhixia etc. obtains salt-durable microbe by domestication, and thinks reactor pair of the batch reactor compared with continuous operation
Hypersaline environment has more resistance, and apposition growth is stronger to the tolerance of salt compared with suspended state, and the microorganism after domestication is to sodium salt
Tolerance can higher.It is that Yang and Lai are used studies have shown that salt-toler ant yeast can be used for handling high organic matter, high saliferous
Waste water, it is more preferable than common aerobic or anaerobic bacteria treatment effect.Currently, although the cultivation carried out for saliferous pickle wastewater is resistance to
The research of salt bacterium is that processing saliferous pickle wastewater proposes a kind of scheme, but its shortcoming is that the domestication time it is long, activated Sludge System
Start slow.Also, Facultative Halophiles are limited to salinity adaptability, are also easy to be influenced by salinity altercation.About membrane technology
Also there is correlative study with ion exchange technique, such as Sridhar utilizes reverse-osmosis treated olive oil processing waste water, the removal of COD
Rate has respectively reached 99.4% and 98.2%, and the coloration and BOD5 in waste water are also all removed.Currently, the technology is useless in saliferous
Effect is best in the processing of water, can theoretically realize the removal of all contaminants.But in practice due to the ingredient of waste water
Complexity, reverse osmosis pretreatment load is larger, and when desalination need to frequently replace filter membrane；Processing procedure palpus antisludging agent, reducing agent etc. are easily
Secondary pollution is caused, this limits application of the technology in Practical Project to a certain extent.
Invention content
Technical problems based on background technology, purpose of the present invention is to solve to be influenced by waste component in the prior art
Greatly, the deficiencies of processing equipment is complicated provides a kind of method handling saliferous pickle wastewater using process integration.
Technical scheme is as follows：
A method of saliferous pickle wastewater being handled using process integration, is included the following steps：First, by pickle production mistake
The cleaning generated in journey and salt marsh composite waste are pre-processed using flocculation, and suspended matter in waste water is made to form reunion, convenient for being detached from water
Body；Then pickle wastewater suspended matter and coloration are reduced by adsorption treatment；Then through advanced oxidation degradation organic pollution；
Finally, it is handled by ion exchange depth, to absorb ammonia nitrogen and total phosphorus, and further decreases organic pollution.Specifically, described
Flocculation pretreatment selects aluminium chloride (BAC) as flocculant；Sorbing material used in the adsorption treatment is modified coal ash；
The advanced oxidation processing is sodium peroxydisulfate advanced oxidation；The ion exchange material therefor is modified zeolite.
It flocculates pretreated effect：Individual modified coal ash processing has better effects to waste water COD removal, but part is thin
Small suspended matter fails to completely remove because volume is small, first flocculates before adsorption treatment, enables the suspended matter in waste water
Enough formed is reunited, and the more small suspended matter of removal makes modified coal ash adsorption effect further be promoted.
Further, the modified coal ash, method of modifying are to clean to be placed in 105 DEG C of baking ovens by flyash and dry
It is dry.In mass ratio 1:4-1:5 weigh calcium carbonate and pretreated flyash, are put into porcelain crucible after mixing, in 600-
2-3h is roasted at 750 DEG C, after being naturally cooling to room temperature, impregnates 8-12h with 30% sulfuric acid.
Its operation principle is：Modified coal ash specific surface area bigger, the enhancing of physical absorption ability is strong, largely adsorbs waste water
In suspended matter and organic pollution, and because flyash in Si-O-Si and Al-O-Al in the treatment of waste water can be to polarity
Dipole-dipole key adsorbed, reduce subsequent ion exchange processing live load, improve saliferous pickle wastewater processing effect
Rate.
Further, the advanced oxidation is sodium peroxydisulfate advanced oxidation (oxidant used is sodium peroxydisulfate), and
It is carried out under the activation of Mn/ activated-carbon catalysts, catalyst production method is as follows：Activated carbon is cleaned, and at 105 DEG C
Drying, puts into the manganese nitrate solution of 0.15-0.2mol/L, and 2h or more is impregnated at 30 DEG C, is put into Muffle furnace later, 400
2-3h is roasted at DEG C.
Its operation principle is：Oxidant with high oxidative capacity with organic pollution by carrying out serial free radical chain
Reaction, to destroy its structure, makes it be gradually degraded as the organic matter of harmless low molecular weight, is finally degraded to CO2、H2O and its
His mineral salt；And oxidant sodium peroxydisulfate is combined with catalyst, improves the production quantity and formation speed of potentiometric titrations, is accelerated
Reaction process improves treatment effeciency and effluent quality.
Further, the modified zeolite, method of modifying are as follows：After natural zeolite is cleaned drying, concentration is put into
In the NaOH solution of 0.4-0.6mol/L, it is modified 1-2h at room temperature, takes out clean later, then put into 0.2-0.8mol/L's
NaCl solution is modified 1-2h at room temperature.
Its operation principle is：Nitrogen in waste water is mainly with nomadic nitrogen (NH3) and ammonium ion (NH4 +) form exist, day
Right zeolite after modified, the Ca in natural zeolite2+、Mg2+Plasma is by Na+Ion substitution, NH4 +Ion exchange enhances, and carries
High ammonia nitrogen removal frank, and since modified coal ash with polar dipole-dipole key to adsorbing, increase NH4 +Ion
Free degree, reduces the live load of exchange interaction, to improve adsorption efficiency of the modified zeolite for ammonia nitrogen, that is, improves
The removal rate of ammonia nitrogen.
Further, the aluminium chloride (BAC) of the flocculant, dosage is 90-180mg/L in processing procedure,
Water temperature is maintained at 20-30 DEG C, and is stirred to water body.
Further, the modified coal ash, dosage is 10-25g/L, reaction time 0.5- in processing procedure
1h, pH 6-8.
Further, the sodium peroxydisulfate advanced oxidation, sodium peroxydisulfate dosage are 1-5mmol/L.
Further, the Mn/ activated-carbon catalysts, dosage is 5-10g/L in processing procedure, and the reaction time is
0.5-1h, pH 4-8.
Further, the modified zeolite, in processing procedure dosage be 20-40g/L, reaction time 0.5-1h,
PH is 6-10.
Beneficial effects of the present invention are as follows：
In general, compared to the prior art, the present invention by flocculate pretreatment/adsorption treatment/advanced oxidation/ion exchange
Triple combination is used for saliferous pickle wastewater, reduces the index of waste water major pollutants, wherein processed waste water SS removal rates are
98.5% or more, COD removal rate are 95-98%, and ammonia nitrogen removal frank 85-96%, total tp removal rate is 97% or more；COD、
The leading indicators such as SS, ammonia nitrogen, total phosphorus can meet GB8978-2002 integrated wastewater discharge standard primary standards.Suitable for bubble
The processing of dish factory and treating stations waste water, has broad application prospects.
1. flocculation pretreatment, enables the suspended matter in waste water to form reunion, the more small suspended matter of removal makes modified powder
The effect of Coal Ash Adsorption processing and ion-exchange treatment is further promoted.
2. adsorption treatment, mainly modified coal ash specific surface area is larger, keeps its physical absorption ability stronger, adsorbable useless
Suspended matter and organic pollution in water, and Si-O-Si and Al-O-Al in the treatment of waste water can be to polar in flyash
Dipole-dipole key is adsorbed.
3. the processing of sodium peroxydisulfate advanced oxidation is to generate a large amount of sulfate radicals certainly under the activation of Mn/ activated-carbon catalysts
By base (E0=2.5v-3.1v), with hydroxyl radical free radical (E0=2.7V-2.8V) it is quite even higher, this is indicated anti-with organic matter
Its oxidability is stronger during answering, and potentiometric titrations can more be produced than hydroxyl radical free radical under pickle wastewater hypersaline environment
It gives birth to and continues to exist, specific reactional equation is as follows：
S2O8 2-+Men+→Me(n+1)++SO4 2-+SO4 -·
SO4 -·+H2O→HO·+HSO4 2-
SO4 -·+HO-→HO·+SO4 2-
When reaction system pH is acid, the SO in reaction system4 -Relatively stable, opposite oxidation is also highly efficient,
And the reaction time is short, reaction speed is fast, while process can control, non-selectivity, and Some Organic Pollutants all can be degraded.
4. passing through the powerful ion exchange of modified zeolite after flocculation pretreatment, adsorption treatment and advanced oxidation processing step
Ability and physical absorption ability absorb ammonia nitrogen in waste water with total phosphorus.
Description of the drawings
Fig. 1 is the flow chart for the method that saliferous pickle wastewater is handled using process integration.
Specific implementation mode
In order to which those skilled in the art are better understood from the present invention, with reference to following embodiment and comparative example to this hair
It is bright to be described in further detail.
The present invention is to use modified coal ash first for the larger feature of saliferous pickle wastewater suspension content, turbidity
Adsorption treatment, to reduce pickle wastewater suspended matter and coloration；Then, pass through sodium peroxydisulfate advanced oxidation degradation organic pollution；
Finally, by modified zeolite advanced treating, to absorb ammonia nitrogen and total phosphorus, and organic pollution is further decreased.Located by combining
Saliferous pickle wastewater is managed, influence of the different factors to treatment effect is probed into, when providing Combined Treatment for produce reality more preferably just
Method.
Since the various regions pickles factory technological process of production is different, the saliferous pickle wastewater property of generation difference, and not
With the flyash in source, absorbent charcoal carrier, the parameter of natural zeolite and performance different from, therefore substantive without prejudice to the present invention
Under the premise of attached claim scope, some parameters of the present invention can suitably be adjusted, to adapt to specific feelings
Condition.
Embodiment 1
The Chengdu Xindu District towns Xin Fan pickles factory saliferous pickle wastewater, property are as follows：COD is 2540mg/L, and ss suspended solid is
1276mg/L, ammonia nitrogen 78.66mg/L, total phosphorus 35.59mg/L, pH 5-6.5, salt content 1%.
Saliferous pickle wastewater 100ml is taken, the dosage of flocculation pretreatment stage control aluminium chloride is 120mg/L, is given up
Water water temperature is maintained at 25 DEG C, stirs 2mins with 250r/min rotating speeds, then stir 2mins with 100r/min rotating speeds；Adsorption treatment rank
Section control modified coal ash dosage is 20g/L, pH value 6, reaction time 0.5h；Oxidation stage controls over cure acid ion and throws
Dosage 1.0mmol/L, Mn/ activated-carbon catalyst dosage 10g/L, pH value 6, reaction time 2h；Ion exchange depth processing
Stage control modified zeolite dosage is 20g/L, and it is 8 to adjust pH, reaction time 0.5h.Water outlet COD is 92mg/L, and removal rate is
96.38%, ss suspended solid 18mg/L, removal rate 98.59%, ammonia nitrogen 8.47mg/L, removal rate 89.2%, total phosphorus are
0.8mg/L, removal rate 97.75%, pH 8, salt content 0.8%.
Embodiment 2
The Chengdu Xindu District towns Xin Fan pickles factory saliferous pickle wastewater, property are as follows：COD is 2250mg/L, and ss suspended solid is
1100mg/L, ammonia nitrogen 78.45mg/L, total phosphorus 35.59mg/L, pH 5-6.5, salt content 1.5%.
Saliferous pickle wastewater 100ml is taken, the dosage of flocculation pretreatment stage control aluminium chloride is 100mg/L, is given up
Water water temperature is maintained at 28 DEG C, stirs 2mins with 270r/min rotating speeds, then stir 2mins with 80r/min rotating speeds；Adsorption treatment rank
Section control modified coal ash dosage is 10g/L, pH value 6, reaction time 1h；Oxidation stage control over cure acid ion adds
Measure 1.0mmol/L, Mn/ activated-carbon catalyst dosage 10g/L, pH value 4, reaction time 1h；Ion exchange depth handles rank
Section control modified zeolite dosage is 40g/L, and it is 8 to adjust pH, reaction time 1h.Water outlet COD is 85mg/L, and removal rate is
96.22%, ss suspended solid 15mg/L, removal rate 98.64%, ammonia nitrogen 3.48mg/L, removal rate 95.6%, total phosphorus are
0.68mg/L, removal rate 98.09%, pH 8, salt content 0.8%.
Embodiment 3
The Chengdu Xindu District towns Xin Fan pickles factory saliferous pickle wastewater, property are as follows：COD is 2540mg/L, and ss suspended solid is
1276mg/L, ammonia nitrogen 78.66mg/L, total phosphorus 35.59mg/L, pH 5-6.5, salt content 1%.
Saliferous pickle wastewater 100ml is taken, the dosage of flocculation pretreatment stage control aluminium chloride is 150mg/L, is given up
Water water temperature is maintained at 22 DEG C, stirs 2mins with 300r/min rotating speeds, then stir 2mins with 90r/min rotating speeds；Adsorption treatment rank
Section control modified coal ash dosage is 10g/L, pH value 6, reaction time 0.5h；Oxidation stage controls over cure acid ion and throws
Dosage 1.0mmol/L, Mn/ activated-carbon catalyst dosage 5g/L, pH value 6, reaction time 0.5h；Ion exchange depth processing
Stage control modified zeolite dosage is 10g/L, and it is 6 to adjust pH, reaction time 0.5h.Water outlet COD is 94mg/L, and removal rate is
96.3%, ss suspended solid 19mg/L, removal rate 98.51%, ammonia nitrogen 11.8mg/L, removal rate 85%, total phosphorus are
0.91mg/L, removal rate 97.44%, pH 7, salt content 0.8%.
Comparative example 1
The Chengdu Xindu District towns Xin Fan pickles factory saliferous pickle wastewater, property are as follows：COD is 2880mg/L, and ss suspended solid is
1138mg/L, ammonia nitrogen 56.54mg/L, total phosphorus 32mg/L, pH 5-6.5, salt content 2.5%.
Saliferous pickle wastewater 100ml is taken, adsorption treatment is only carried out, control modified coal ash dosage is 20g/L, and pH value is
5, reaction time 1h.Water outlet COD is 1687mg/L, and removal rate 41.39%, ss suspended solid 111mg/L, removal rate is
90.2%, ammonia nitrogen 42mg/L, removal rate 25%, total phosphorus 30mg/L, removal rate 6%, pH 7, salt content 2%.
Method is evaluated：Merely saliferous pickle wastewater is handled by modified coal ash, for the suspension in waste water
Object SS can reach 90% removal rate, but poor for the removal of organic pollution realization, and ammonia nitrogen, the treatment effect of total phosphorus TP are deficient
It lacks, saliferous pickle wastewater is difficult to reach effective treatment effect.
Comparative example 2
The Chengdu Xindu District towns Xin Fan pickles factory saliferous pickle wastewater, property are as follows：COD is 2880mg/L, and ss suspended solid is
1138mg/L, ammonia nitrogen 56.54mg/L, total phosphorus 32mg/L, pH 5-6.5, salt content 2.5%.
Saliferous pickle wastewater 100ml is taken, flocculation pretreatment and adsorption treatment are successively carried out, flocculation pretreatment stage controls alkali
The dosage of formula aluminium chloride is 100mg/L, and waste water water temperature is maintained at 28 DEG C, stirs 2mins with 270r/min rotating speeds, then with 80r/
Min rotating speeds stir 2mins；Control modified coal ash dosage is 20g/L, pH value 5, reaction time 1h.Being discharged COD is
1687mg/L, removal rate 65.86%, ss suspended solid 111mg/L, removal rate 91.3%, ammonia nitrogen 42mg/L, removal rate
It is 25%, total phosphorus 4.8mg/L, removal rate 85%, coloration 40, pH 7, salt content 2%.
Method is evaluated：Comparative example 2 is compared with comparative example 1, and increasing flocculation pretreatment enables the suspended matter in waste water to be formed
Reunite, then be modified Powder ash adsorption processing, has gain effect for COD and total phosphorus TP removals, especially for total phosphorus
Removal effect, but only flocculation pretreatment and adsorption treatment still do not reach and meet GB8978-2002 integrated wastewater discharge standards
The requirement of primary standard.
Comparative example 3
The Chengdu Xindu District towns Xin Fan pickles factory saliferous pickle wastewater, property are as follows：COD is 2880mg/L, and ss suspended solid is
1138mg/L, ammonia nitrogen 56.54mg/L, total phosphorus 32mg/L, pH 5-6.5, salt content 2.5%.
Saliferous pickle wastewater 100ml is taken, advanced oxidation processing stage is directly carried out, controls over cure acid ion dosage
1.0mmol/L, Mn/ activated-carbon catalyst dosage 10g/L, pH value 6, reaction time 2h.Water outlet COD is 1933mg/L, is gone
Except rate be 32.87%, ss suspended solid 552mg/L, removal rate 51.5%, ammonia nitrogen 85.49mg/L, removal rate be-
51.2%, total phosphorus 29mg/L, removal rate 9.4%, pH 6, salt content 2.4%.
Method is evaluated：For merely by advanced oxidation step process saliferous pickle wastewater, due to lacking modified fine coal
Ash handles the removal of ss suspended solid, and the organic pollution in waste water adheres to and be wrapped in the inside or surface of suspended matter, reduces
Redox reaction speed in oxidation processes, cannot reach preferable treatment effect.
Comparative example 4
The Chengdu Xindu District towns Xin Fan pickles factory saliferous pickle wastewater, property are as follows：COD is 2540mg/L, and ss suspended solid is
1276mg/L, ammonia nitrogen 78.66mg/L, total phosphorus 35.59mg/L, pH 5-6.5, salt content 1%.
Taking saliferous pickle wastewater 100ml, adsorption treatment stage control modified coal ash dosage is 20g/L, pH value 6,
Reaction time 0.5h；Oxidation stage controls over cure acid ion dosage 1.0mmol/L, Mn/ activated-carbon catalyst dosage
10g/L, pH value 6, reaction time 2h.Water outlet COD is 350.5mg/L, removal rate 86.2%, ss suspended solid 242.4mg/
L, removal rate 81%, ammonia nitrogen 111.7mg/L, removal rate are -42%, total phosphorus 33.67mg/L, removal rate 5.4%, pH
It is 5, salt content 1.2%.
Method is evaluated：Saliferous pickle wastewater, the COD of water outlet are handled using the step of adsorption treatment+advanced oxidation processing
Removal rate is 85-92%, and ss suspended solid removal rate is 80-94%, and ammonia nitrogen growth rate is 40-45%, and total tp removal rate is 5-
9%, chroma removal rate 80-90%；Although advanced oxidation processing efficiently makes the organic matter degradation in waste water be small molecule object
Matter has achieved the purpose that removal is given up Organic substance in water, but increases the nitrogen element content in waste water simultaneously, and nitrogen mainly with
Nomadic nitrogen (NH3) and ammonium ion (NH4 +) form be largely dissolved in waste water, cause body eutrophication to pollute, therefore the party
Method provides project plan comparison with the present invention, and there are the major defects of ammonia nitrogen removal effect difference, are not suitable for practical application.
Comparative example 5
The Chengdu Xindu District towns Xin Fan pickles factory saliferous pickle wastewater, property are as follows：COD is 2540mg/L, and ss suspended solid is
1276mg/L, ammonia nitrogen 78.66mg/L, total phosphorus 35.59mg/L, pH 5-6.5, salt content 1%.
Taking saliferous pickle wastewater 100ml, adsorption treatment stage control modified coal ash dosage is 20g/L, pH value 6,
Reaction time 0.5h；It is 20g/L that ion exchange depth processing stage, which controls modified zeolite dosage, and it is 8 to adjust pH, the reaction time
0.5h.Oxidation stage controls over cure acid ion dosage 1.0mmol/L, Mn/ activated-carbon catalyst dosage 10g/L, pH value
It is 6, reaction time 2h；Water outlet COD is 294.6mg/L, and removal rate 88.4%, ss suspended solid 88.04mg/L, removal rate is
93.1%, ammonia nitrogen 93.37mg/L, removal rate are -18.7%, total phosphorus 7.83mg/L, removal rate 78%, pH 6, saliferous
Amount is 1.4%.
Method is evaluated：Using the step sequential processes saliferous pickles of adsorption treatment+ion-exchange treatment+advanced oxidation processing
The COD removal rates of waste water, water outlet are 80-94%, and ss suspended solid removal rate is 90% or more, and ammonia nitrogen growth rate is 15-27%,
Total tp removal rate is 70-88.5%, and chroma removal rate is 93% or more；After changing processing step sequence, ion-exchange treatment exists
Before, rear, larger molecular organics are undegraded to be adsorbed using ion-exchanger advanced oxidation, and the impurity adsorbed is needed more to cause
Cost improves, and complete organic matter not to be adsorbed can also be degraded to nitrogenous small-molecule substance after advanced oxidation processing, lead to ammonia
Nitrogen increases, because the sequential steps are also undesirable.
Embodiment described above is merely preferred embodiments of the present invention, but protection scope of the present invention is not
It is confined to this, any one skilled in the art is in technical scope disclosed by the invention, skill according to the present invention
Art scheme and its inventive concept are subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of method handling saliferous pickle wastewater using process integration, includes the following steps：
A. flocculation pretreatment, adds flocculant, and stir waste water in saliferous pickle wastewater, and suspended matter in waste water is made to form group
It is poly-, convenient for being detached from water body；
B. adsorption treatment adds modified coal ash in saliferous pickle wastewater and carries out adsorption treatment, to reduce pickle wastewater suspension
Object and coloration；
C. advanced oxidation is handled, using the oxidant with strong oxidizing property to carrying out advanced oxygen by step B treated waste water
Change is handled, and to which harmful organic compound in waste water is transformed into harmless inorganic compound, is realized to the complete of pollutant
It removes and innoxious；
D. ion-exchange treatment selects the ion-exchanger with absorption property to go forward side by side to absorb the ammonia nitrogen and total phosphorus in waste water
One step reduces organic pollution.
2. the method according to claim 1 for handling saliferous pickle wastewater using process integration, which is characterized in that described to contain
Salt pickle wastewater refers to：The water for cleaning two before salt accumulated water, pack during pickled vegetable is mixed to get.
3. the method according to claim 1 for handling saliferous pickle wastewater using process integration, which is characterized in that the step
Modified coal ash in rapid B, method of modifying are as follows：
A. flyash is cleaned to be placed in 105 DEG C of baking ovens and dries；
B. in mass ratio 1:5 weigh the flyash that calcium carbonate and step a are obtained, and are put into after mixing in porcelain crucible with 600 DEG C
Roast 2h, cooled to room temperature；
C. product step b obtained impregnates 12h with 30% sulfuric acid, finally cleans and obtains modified coal ash.
4. the method according to claim 1 for handling saliferous pickle wastewater using process integration, which is characterized in that the step
The middle-and-high-ranking oxidation processes of rapid C use sodium peroxydisulfate advanced oxidation, and are carried out under the action of Mn/ activated-carbon catalysts, described to urge
The preparation method of agent is as follows：
A. activated carbon is cleaned, and 105 DEG C of drying；
B. the activated carbon dried in step a is put into the manganese nitrate solution of 0.2mol/L, impregnates 2h under the conditions of 30 DEG C；
C. the obtained mixtures of step b are put into Muffle furnace, with 400 DEG C of roasting 2h, cooled to room temperature obtains catalysis
Agent.
5. the method according to claim 1 for handling saliferous pickle wastewater using process integration, which is characterized in that the step
For the ion-exchange treatment of rapid D using modified zeolite as processing material, the method for modifying of the modified zeolite is as follows：
A. it takes natural zeolite to clean and dries；
B. the natural zeolite after clean drying is put into the NaOH solution of 0.6mol/L, 2h is reacted at 20 DEG C, is then taken
Go out and cleans；
C. the obtained products of step b are put into the NaCl solution of 0.6mol/L, and taking-up is filtered after reacting 2h at 20 DEG C
Zeolite, the clean simultaneously drying of zeolite to the modified zeolite.
6. the method according to claim 1 for handling saliferous pickle wastewater using process integration, which is characterized in that the step
The flocculant of rapid A uses aluminium chloride, and dosage is 90-180mg/L in processing procedure, and water temperature is maintained at 20-30
DEG C, and water body is stirred.
7. the method for handling saliferous pickle wastewater using process integration according to 1,3,6 any one of claim, special
Sign is that the modified coal ash, dosage is 10-25g/L, reaction time 0.5-1h, pH 6-8 in processing procedure.
8. the method according to claim 1 or 4 for handling saliferous pickle wastewater using process integration, which is characterized in that institute
Mn/ activated-carbon catalysts are stated, dosage is 5-10g/L, reaction time 0.5-1h, pH 4-8 in processing procedure.
9. the method according to claim 8 for handling saliferous pickle wastewater using process integration, which is characterized in that the mistake
Sodium sulphate advanced oxidation, sodium peroxydisulfate dosage are 1-5mmol/L.
10. the method for using process integration processing saliferous pickle wastewater according to claim 1 or 5, which is characterized in that institute
Modified zeolite is stated, dosage is 20-40g/L, reaction time 0.5-1h, pH 6-10 in processing procedure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810287042.6A CN108558065A (en) | 2018-03-30 | 2018-03-30 | A method of handling saliferous pickle wastewater using process integration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810287042.6A CN108558065A (en) | 2018-03-30 | 2018-03-30 | A method of handling saliferous pickle wastewater using process integration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108558065A true CN108558065A (en) | 2018-09-21 |
Family
ID=63533894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810287042.6A Pending CN108558065A (en) | 2018-03-30 | 2018-03-30 | A method of handling saliferous pickle wastewater using process integration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108558065A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111807632A (en) * | 2020-07-21 | 2020-10-23 | 吉林化工学院 | Method for treating dye wastewater by using modified fly ash |
| CN113651471A (en) * | 2021-09-07 | 2021-11-16 | 福泉兴盛生物科技有限公司 | Efficient treatment method for organic wastewater |
| CN113717916A (en) * | 2021-09-30 | 2021-11-30 | 苏州水星环保工业系统有限公司 | Preparation method and application of complex microbial inoculant for treating preserved fruit wastewater |
| CN115466017A (en) * | 2022-10-12 | 2022-12-13 | 唐山碳丰农业科技有限公司 | Pickle wastewater treatment method and device |
| CN116162793A (en) * | 2021-11-24 | 2023-05-26 | 西藏矿业发展股份有限公司 | Method and device for removing soluble organic matters, calcium and magnesium in carbonic acid type salt lake brine |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003236584A (en) * | 2002-02-18 | 2003-08-26 | Ataka Construction & Engineering Co Ltd | Sewage treatment apparatus |
| WO2004067453A1 (en) * | 2003-01-31 | 2004-08-12 | Idemitsu Kosan Co., Ltd. | Method of treating wastewater containing hardly decomposable harmful substances |
| CN101381190A (en) * | 2008-10-14 | 2009-03-11 | 云南大学 | Treatment technique suitable for high salt and high concentrated organic wastewater |
| CN103111290A (en) * | 2013-03-18 | 2013-05-22 | 哈尔滨工业大学 | Preparation method of catalyst for catalyzing ozonation for advanced treatment of coal chemical wastewater |
| CN104649389A (en) * | 2013-11-22 | 2015-05-27 | 四川锦美环保科技有限公司 | Two-grade coagulating sedimentation treatment process of pickling waste water of pickled vegetable |
| CN106396228A (en) * | 2016-09-18 | 2017-02-15 | 内蒙古久科康瑞环保科技有限公司 | Device and method for treating industrial wastewater with high salt content |
| CN107352540A (en) * | 2017-08-29 | 2017-11-17 | 中国科学院城市环境研究所 | A kind of hydro-thermal method prepares the method and its device of Supported Manganese oxide active charcoal |
-
2018
- 2018-03-30 CN CN201810287042.6A patent/CN108558065A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003236584A (en) * | 2002-02-18 | 2003-08-26 | Ataka Construction & Engineering Co Ltd | Sewage treatment apparatus |
| WO2004067453A1 (en) * | 2003-01-31 | 2004-08-12 | Idemitsu Kosan Co., Ltd. | Method of treating wastewater containing hardly decomposable harmful substances |
| CN101381190A (en) * | 2008-10-14 | 2009-03-11 | 云南大学 | Treatment technique suitable for high salt and high concentrated organic wastewater |
| CN103111290A (en) * | 2013-03-18 | 2013-05-22 | 哈尔滨工业大学 | Preparation method of catalyst for catalyzing ozonation for advanced treatment of coal chemical wastewater |
| CN104649389A (en) * | 2013-11-22 | 2015-05-27 | 四川锦美环保科技有限公司 | Two-grade coagulating sedimentation treatment process of pickling waste water of pickled vegetable |
| CN106396228A (en) * | 2016-09-18 | 2017-02-15 | 内蒙古久科康瑞环保科技有限公司 | Device and method for treating industrial wastewater with high salt content |
| CN107352540A (en) * | 2017-08-29 | 2017-11-17 | 中国科学院城市环境研究所 | A kind of hydro-thermal method prepares the method and its device of Supported Manganese oxide active charcoal |
Non-Patent Citations (4)
| Title |
|---|
| LI, HUOSHENG,ET AL.: "Simultaneous removal of thallium and chloride from a highly saline industrial wastewater using modified anion exchange resins", 《JOURNAL OF HAZARDOUS MATERIALS》 * |
| 杨炳飞: "氢氧化钠预处理和盐热复合改性对沸石氨氮吸附性能的影响", 《硅酸盐学报》 * |
| 马阁: "改性粉煤灰及其对垃圾渗滤液吸附性研究", 《中国优秀硕士学位论文全文数据库工程科技Ⅰ辑》 * |
| 黄晓东: "负载铁、锰活性炭催化过硫酸盐降解染料", 《化学工程与装备》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111807632A (en) * | 2020-07-21 | 2020-10-23 | 吉林化工学院 | Method for treating dye wastewater by using modified fly ash |
| CN113651471A (en) * | 2021-09-07 | 2021-11-16 | 福泉兴盛生物科技有限公司 | Efficient treatment method for organic wastewater |
| CN113717916A (en) * | 2021-09-30 | 2021-11-30 | 苏州水星环保工业系统有限公司 | Preparation method and application of complex microbial inoculant for treating preserved fruit wastewater |
| CN116162793A (en) * | 2021-11-24 | 2023-05-26 | 西藏矿业发展股份有限公司 | Method and device for removing soluble organic matters, calcium and magnesium in carbonic acid type salt lake brine |
| CN115466017A (en) * | 2022-10-12 | 2022-12-13 | 唐山碳丰农业科技有限公司 | Pickle wastewater treatment method and device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108558065A (en) | A method of handling saliferous pickle wastewater using process integration | |
| CN102659221B (en) | Electro-catalytic oxidation material for wastewater treatment, preparation method and application | |
| WO2015089971A1 (en) | Natural pyrrhotite biological filter and method for utilizing same to synchronously remove nitrate-nitrogen and phosphorus from water | |
| CN102145952B (en) | Method for treating fracturing reverse drainage liquid of petroleum exploitation by microwave rapid catalysis | |
| CN106242053A (en) | A kind of biological pre-treatment process of micro-polluted raw | |
| CN106242179A (en) | The compositions of a kind of quasi-east coal chemical industrial waste water process and method of wastewater treatment thereof | |
| CN105251462A (en) | Garbage penetrating fluid efficient wastewater treating agent based on modified fly ash and preparation method | |
| CN105776624A (en) | Method for ozonizing printing and dyeing wastewater | |
| CN102432127B (en) | Advanced treatment system and method for biochemically hardly degradable organic wastewater | |
| CN110540285A (en) | Heterogeneous ozone catalysis and micro-nano bubble combined sewage treatment method | |
| CN103193364A (en) | Resource utilization method of ion exchange resin desorption solution | |
| CN111592090A (en) | Application method of red mud-based heterogeneous Fenton catalyst for advanced wastewater treatment | |
| CN106219832A (en) | A kind of device and method of double catalytic oxidation PROCESS FOR TREATMENT waste water | |
| CN111606519A (en) | Advanced treatment method for electroplating wastewater | |
| CN111484158A (en) | Pretreatment method of glyphosate production wastewater | |
| CN103086497A (en) | Method for realizing deep treatment of coking wastewater by utilizing calcium hypochlorite | |
| CN108083452B (en) | Heterotrophic and sulfur autotrophic integrated solid-phase denitrification system for treating high-nitrate water body | |
| CN106348542B (en) | A kind of processing method of the pharmacy waste water of the antibiotic containing high concentration | |
| CN105540954B (en) | A kind of method that chemical denitrification removes nitrate nitrogen in water removal | |
| CN109896574B (en) | Carbon ferrite-titanium oxide multifunctional water purification material and preparation method thereof | |
| CN101934230B (en) | Iron inner electrolysis catalyst and preparation method thereof | |
| CN107902745B (en) | Treatment method of landfill leachate concentrated water | |
| WO2020211353A1 (en) | Powder for industrial sewage treatment | |
| CN102019169B (en) | Regeneration method of activated carbon in organosilicon wastewater treatment | |
| CN109052594A (en) | Be suitble to coking wastewater containing phenol and cyanide removes cyanogen drop nitrogen decolorising agent and preparation, application method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180921 |
|
| RJ01 | Rejection of invention patent application after publication |