CN107486143A - A kind of modified zeolite absorption and ammonia nitrogen waste water treatment method associated with electrochemical oxidation - Google Patents
A kind of modified zeolite absorption and ammonia nitrogen waste water treatment method associated with electrochemical oxidation Download PDFInfo
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- CN107486143A CN107486143A CN201710680875.4A CN201710680875A CN107486143A CN 107486143 A CN107486143 A CN 107486143A CN 201710680875 A CN201710680875 A CN 201710680875A CN 107486143 A CN107486143 A CN 107486143A
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- modified zeolite
- waste water
- electrochemical oxidation
- ammonia nitrogen
- absorption
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- 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
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
Abstract
The invention discloses a kind of absorption of modified zeolite and ammonia nitrogen waste water treatment method associated with electrochemical oxidation, comprise the following steps：First, the preparation of modified zeolite；2nd, ammonia nitrogen waste water enters in regulation tank, and then 1 5wt% sodium chloride is directly added into waste water in tank is adjusted, and waste water then is pumped into modified zeolite absorption with being electrolysed in electrochemical oxidation combined apparatus；3rd, modified zeolite adsorption flows out with the waste water after the processing of electrochemical oxidation combined apparatus, and after detection is up to standard, waste water enters salt enrichment facility, salt solution is flowed back to regulation tank from the enriched chamber of salt enrichment facility, from desalting chamber's Chinese effluent of salt enrichment facility.The modified zeolite absorption of the present invention and ammonia nitrogen waste water treatment method high treating effect associated with electrochemical oxidation, especially for containing in, Low Concentration Ammonia Containing Wastewater it is better, zeolite utilization rate is high, cost is low and can realize zero-emission.
Description
Although existing report proves that modified zeolite can extract waste water quickly through the absorption of physics and chemistry at present
In ammonia nitrogen, allow water outlet to meet discharge standard, but do not handle ammonia nitrogen inherently, regeneration discarded after being regenerated to zeolite
The high ammonia and nitrogen components of high salt will be contained in liquid, it is still necessary to advanced treating；Electrochemical oxidation process can fundamentally degradation of ammonia nitrogen, but consume
When, power consumption, use cost is high.Rapidly and thoroughly to handle ammonia nitrogen waste water, realize a kind of method that can cooperate with both just very
It is necessary.
Ammonia-nitrogen wastewater treatment technology is present in the prior art：Treatment effect is bad, and cost is high, existing absorption method processing work
Zeolite utilization rate in skill is low, the regeneration scheme of zeolite is too complicated in whole technical process, time-consuming, and ammonia nitrogen can not be thorough
The defects of removal.Therefore, the present invention provides a kind of modified zeolite absorption and ammonia nitrogen waste water treatment method associated with electrochemical oxidation.
The content of the invention
It is an object of the invention to provide a kind of absorption of modified zeolite and ammonia nitrogen waste water processing side associated with electrochemical oxidation
Method, to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides following technical scheme：
A kind of modified zeolite absorption and ammonia nitrogen waste water treatment method associated with electrochemical oxidation, comprise the following steps：
First, the preparation of modified zeolite：By natural zeolite at normal temperatures, it is being put into the solution that sodium chloride concentration is 5-15wt%
Middle immersion, then cleaned with water and obtain modified zeolite finished product；
2nd, ammonia nitrogen waste water enters in regulation tank, and 1-5wt% sodium chloride then is directly added into waste water in tank is adjusted
In, waste water is then pumped into modified zeolite absorption with being electrolysed in electrochemical oxidation combined apparatus；
3rd, modified zeolite adsorption flows out with the waste water after the processing of electrochemical oxidation combined apparatus, after detection is up to standard,
Waste water enters salt enrichment facility, salt solution is flowed back to regulation tank from the enriched chamber of salt enrichment facility, from the desalting chamber of salt enrichment facility
Chinese effluent.
As the further scheme of the present invention：In step 1 by natural zeolite at a temperature of 25-26 DEG C, sodium chloride is being put into
20-25 hours are soaked in the solution that concentration is 5-15wt%, then modified zeolite finished product is obtained after cleaning 8-9 hours with water circulation.
As the further scheme of the present invention：The modified zeolite absorption includes coaxial peace with electrochemical oxidation combined apparatus
Dress is provided with positive terminal positioned at outside sheath, internally positioned tubulose or cylindrical cathode, anode, and negative electrode is provided with
Negative terminal, modified zeolite absorption by negative electrode and anode inside electrochemical oxidation combined apparatus with being nested to form electrochemistry chamber
The side lower end of body, the modified zeolite absorption and electrochemical oxidation combined apparatus is provided with water inlet, modified zeolite absorption and electricity
The opposite side upper end of chemical oxidation combined apparatus is provided with a delivery port；Described electrochemistry inside cavity is directly or interlayer filling changes
Property zeolite filler.
As the further scheme of the present invention：When being electrolysed in step 2, the voltage between anode and negative electrode is 5-6V, modified
Zeolite adsorption and the plate current density of electrochemical oxidation combined apparatus are 80-120A/m2。
As the further scheme of the present invention：Described natural zeolite is natural mordenite zeolite.
As the further scheme of the present invention：Described natural zeolite is the natural mercerising boiling that original producton location is Jinyun county, Zhejiang province
Stone.
Compared with prior art, the beneficial effects of the invention are as follows：
The modified zeolite absorption of the present invention and ammonia nitrogen waste water treatment method high treating effect associated with electrochemical oxidation, especially
Be be directed to containing in, Low Concentration Ammonia Containing Wastewater it is better, zeolite utilization rate is high, cost is low and can realize zero-emission.This
The continuous operation that invention regenerates by modified zeolite, during ammonia nitrogen removal, it is not necessary to other chemicals are added, can also ammonia
Nitrogen is converted into nitrogen, green, and the modified zeolite preparation method used is simple, to containing in, in Low Concentration Ammonia Containing Wastewater
Ammonia nitrogen carry out adsorption efficiency it is very high.Ammonia nitrogen waste water processing system of the present invention is using processing method of the present invention in processing procedure
Reusability can be carried out to modified zeolite, while solve the shortcomings that electrochemicial oxidation is slower, and modifying agent used
Recycling can be realized.Method of wastewater treatment of the present invention can ensure what original conventional sewage treatment process was basically unchanged
Under the conditions of, by increasing corresponding steps and conventional equipment, urban wastewater treatment firm pollutant emission can be stably reached
One-level A standards in standard GB 18918-2002：An Dan≤8mg/L, this standard are highest standard in current all standards.
Brief description of the drawings
Fig. 1 is modified zeolite absorption and the structural representation of ammonia nitrogen waste water processing system associated with electrochemical oxidation.
Fig. 2 is modified zeolite absorption and modified zeolite absorption in ammonia nitrogen waste water processing system associated with electrochemical oxidation and electricity
The structural representation of chemical oxidation combined apparatus.
Fig. 3 is modified zeolite absorption and the theory structure schematic diagram of ammonia nitrogen waste water processing system associated with electrochemical oxidation.
Wherein：1- delivery ports；2- positive terminals；3- negative electrodes；4- water inlets；5- modified zeolite fillers；6- anodes；7- negative poles
Wiring；8- adjusts tank；9- ammonia nitrogen waste water water inlet pipes；10- pumps A；11- flowmeters；12- water outs；13- strong brine outlet pipes；14-
Pump B；15- salt enrichment facilities；16- pumps C；17- triple valves；18- detection meters；19- modified zeolites adsorb to be combined with electrochemical oxidation
Device.
Embodiment
The technical scheme of this patent is described in more detail with reference to embodiment.
Embodiment 1
Fig. 1-3, a kind of modified zeolite absorption and ammonia nitrogen waste water processing system associated with electrochemical oxidation are referred to, including extremely
Few modified zeolite absorption and electrochemical oxidation combined apparatus 19, regulation tank 8 and salt enrichment facility 15；The modified zeolite is inhaled
It is attached to connect formation circulation secondary treatment system with electrochemical oxidation combined apparatus 19 and regulation tank 8；The modified zeolite absorption and electricity
Chemical oxidation combined apparatus 19 connects to form regenerated liquid reclaiming system with salt enrichment facility 15；
The ammonia nitrogen waste water water inlet pipe 9 is connected to regulation tank 8, and ammonia nitrogen waste water water inlet pipe 9 is provided with flowmeter 11 and pump
A10, ammonia nitrogen waste water are pumped into regulation tank 8 by pump A10；The regulation tank 8 is connected to modified zeolite absorption and electrification by pump B14
Learn the water inlet 4 of oxidation combined apparatus 19, the side lower end of salt enrichment facility 15 is provided with water out 12, and the one of salt enrichment facility 15
Side upper end is connected to regulation tank 8 by strong brine outlet pipe 13；Modified zeolite absorption goes out with electrochemical oxidation combined apparatus 19
The mouth of a river 1 is connected to detection meter 18, and detection 18 other ends of meter are connected to triple valve 17, and the other both ends of triple valve 17 are respectively connecting to
Adjust tank 8, salt enrichment facility 15；And triple valve 17 is connected to salt enrichment facility 15 by pump C16；
The modified zeolite absorption includes coaxial mounted positioned at outside tubular male with electrochemical oxidation combined apparatus 19
Pole 6, internally positioned tubulose or cylindrical cathode 3, anode 6 are provided with positive terminal 2, and negative electrode 3 is provided with negative terminal 7, modified
Zeolite adsorption by negative electrode 3 and anode 6 inside electrochemical oxidation combined apparatus 19 with being nested to form electrochemistry cavity, the modification
The side lower end of zeolite adsorption and electrochemical oxidation combined apparatus 19 is provided with water inlet 4, modified zeolite absorption and electrochemical oxidation
The opposite side upper end of combined apparatus 19 is provided with a delivery port 1；Described electrochemistry inside cavity is direct or the filling-modified boiling of interlayer
Hardcore 5, modified zeolite is filled between anode and cathode as filler；The delivery port 1 also connect it is some detection sample taps or
Detection device；The detection device is detection meter 18；Described modified zeolite absorption and electrochemical oxidation combined apparatus 19 are post
Shape reaction chamber, when inserting modified zeolite using interlayer mode, intracavitary has a setting interlayer, and the spacing between interlayer is 200 mm；Column
The height of reaction chamber is 2-5m, is more preferably 3.5-4m；
Wherein, described modified zeolite filler 5 is the conventional modified zeolite in this area, usually by natural zeolite in chlorination
Immersion obtains in sodium solution；In described modified zeolite absorption and electrochemical oxidation combined apparatus 19, it is tubulose to use anode 6
Electrode, its material includes but is not limited to, steady electrode of graphite electrode, glass-carbon electrode, shape etc.；Used negative electrode 3 is tubulose or rod
Shape electrode is nested into anode, and its material includes but is not limited to platinum, titanium, stainless steel etc.；The circulation secondary treatment system includes connection
In the pipeline adjusted between tank 8 and delivery port 1 and the pump and choke valve that are installed on pipeline；The regenerated liquid reclaiming system bag
Include the pipeline being connected between regulation tank 8 and the enriched chamber of salt enrichment facility 15 and the pump being installed on pipeline and throttling
Valve.In actual use, can simply multiple described modified zeolites of serial or parallel connection when handling the ammonia nitrogen waste water of higher concentration
Absorption and electrochemical oxidation combined apparatus 19, reach processing requirement.The degradation treatment of ammonia nitrogen waste water changes filling-modified zeolite
Property zeolite adsorption in electrochemical oxidation combined apparatus 19 with carrying out；Modified zeolite absorption and electrochemical oxidation during electrolysis
Voltage between the positive pole and negative pole of combined apparatus 19 is 5-6V, modified zeolite absorption and the pole of electrochemical oxidation combined apparatus 19
Plate current density is 80-120A/m2；Spacing between positive pole and negative pole is 1-10cm；The modified zeolite absorption and electrochemistry
Aoxidize the flow velocity >=0.2m/s, preferably 0.2-0.5m/s of the fluid of combined apparatus 19；If ammonia nitrogen waste water is not in single treatment
Reach after technique discharge standard can be back to by lateral line modified zeolite absorption continue to locate with electrochemical oxidation combined apparatus 19
Reason；Described regenerated liquid reclaiming system, be handle ammonia nitrogen after wastewater chlorination sodium after concentration technology, emission compliance waste water,
High concentration salt solution is back in modified zeolite absorption and electrochemical oxidation combined apparatus 19 by lateral line, and in salinity less than again
After raw requirement, appropriate supplement.In a practical situation, the electrochemistry is adjusted according to the wastewater flow rate of concrete engineering and ammonia nitrogen loading
The size of device, the species of electrode and shape and the amount of fill of modified zeolite, described it can change some when treating capacity is big
Property zeolite adsorption-electrochemical appliance by simply serial or parallel connection mode, combine processing waste water, has very much practicality
Property, operability is also strong.Also supercharging device such as booster pump, and flow regulator can be increased, viscosity is higher to give up to handle
Water.
Embodiment 2
As different from Example 1：The modified zeolite absorption uses following structure with electrochemical oxidation combined apparatus 19：
The modified zeolite absorption includes modified zeolite adsorption tower, and series connection one or three with electrochemical oxidation combined apparatus 19
Tie up the electrochemistry cavity of electrode composition；Described Electrochemical Reactor with Three-dimensional Electrode cavity includes the bottom side line water inlet of side and another
The top side line delivery port of side；The described filling-modified zeolite of modified zeolite adsorption tower inner homogeneous；The modified zeolite is inhaled
The tower body of attached tower is cylinder, is highly 3-5m, more preferably 3-4m, and the cavity of Electrochemical Reactor with Three-dimensional Electrode oxidation unit is rectangular
Body.
Embodiment 3
A kind of modified zeolite absorption and ammonia nitrogen waste water treatment method associated with electrochemical oxidation, ammonia nitrogen waste water are generally conventional
Industrial or agricultural ammonia nitrogen waste water, in, the ammonia nitrogen waste water of low concentration be preferred, ammonia nitrogen concentration 100-800mg/L；Processing method include with
Lower step：
First, the preparation of modified zeolite：It is 15wt% being put into sodium chloride concentration by natural mordenite zeolite at a temperature of 25 DEG C
Solution in soak 25 hours, then cleaned with water circulation after 8 hours and obtain modified zeolite finished product；Natural mordenite zeolite original producton location is
Jinyun county, Zhejiang province；
In the present embodiment, the structure of the modified zeolite absorption and electrochemical oxidation combined apparatus 19 can use column stainless
The ceramic anode 6 of the inner surface load brown lead oxide elctro-catalyst of the coaxial nested installation tubulose of steel negative electrode 3, two electrode Average distances
80mm；Modified zeolite is inserted using interlayer mode, the spacing between interlayer is 200mm, and the dosage of filler can be held for 1/8 device empty room
Receiving the weight of waste water, (waste water density is with 1 × 103kg/m3Meter)；
2nd, ammonia nitrogen waste water is entered in regulation tank 8 by ammonia nitrogen waste water water inlet pipe 9, then by 1wt%'s in tank 8 is adjusted
Sodium chloride is directly added into waste water, and then enter modified zeolite absorption from water inlet 4 by pump A10 fills with electrochemical oxidation combination
In putting 19, water climbing speed is 4m/h, residence time 30min；During electrolysis, it is by the voltage-regulation between anode 6 and negative electrode 3
6V, modified zeolite absorption and the plate current density of electrochemical oxidation combined apparatus 19 are 120A/m2；
3rd, modified zeolite adsorption flows out with the waste water after the processing of electrochemical oxidation combined apparatus 19 from delivery port 1, passes through
Detection mouth samples, and after the detection of detection meter 18 is up to standard, waste water enters salt enrichment facility 15, is flowed back from the enriched chamber of salt enrichment facility 15
Salt solution is to tank 8 is adjusted, and from desalting chamber's Chinese effluent of salt enrichment facility 15, sour room and alkali room reclaim acid ＆ alkali liquid reuse to producing work
Section, it is about 12% to reclaim the concentration of hydrochloric acid produced, and alkali concn is about 15%.
30d operation results show, are 5.0m in flow3/ h, inflow 50m3/ d, raw water ammonia nitrogen concentration are 200~400mg/
Under conditions of L, the processing water of zeolite per ton is about 50m3(waste water)/t (zeolite).Single treatment ammonia nitrogen in waste water concentration all may be used
Below 5mg/L is dropped to, for chlorine ion concentration in 3mg/L or so, water outlet reaches urban wastewater treatment firm pollutant emission standard GB
One-level A standards in 18918-2002, and increased sharply without burst, circulated without carrying out return of waste water；Bipolar membrane device handles salt solution,
It is larger to chlorination sodium waste, 40% or so, it is necessary to before follow-up waste water enters device, 1.2wt% chlorine is added in tank is adjusted
Change sodium.
Embodiment 4
First, the preparation of modified zeolite：It is 5wt% being put into sodium chloride concentration by natural mordenite zeolite at a temperature of 26 DEG C
Solution in soak 20 hours, then cleaned with water circulation after 9 hours and obtain modified zeolite finished product；Natural mordenite zeolite original producton location is
Jinyun county, Zhejiang province；
In the present embodiment, the modified zeolite absorption and the structure of electrochemical oxidation combined apparatus 19 are inhaled using modified zeolite
The structure of attached tower series connection three-diemsnional electrode, titanium plate cathode are alternately arranged with graphite anode, two electrode Average distance 20mm, provided with independent
Modified zeolite adsorption tower；In electrochemical appliance side, be respectively equipped with one of bottom side line, be mounted with throttle and
The PVC pipeline of flowmeter, as inlet pipeline；Opposite side is provided with top side line, as outlet pipeline；Left in regulation tank both sides
Refluxing opening, and the PVC pipeline with throttle and peristaltic pump is mounted with, respectively as brine regeneration liquid reuse pipe and give up
Water effluent recycling pipe；Modified zeolite is inserted in a manner of interlayer, spacing is 200mm between interlayer, and the dosage of filler is empty for 1/8 adsorption tower
Tower can accommodate the weight of waste water, and (waste water density is with 1 × 103kg/m3Meter)；
2nd, ammonia nitrogen waste water is entered in regulation tank 8 by ammonia nitrogen waste water water inlet pipe 9, then by 5wt%'s in tank 8 is adjusted
Sodium chloride is directly added into waste water, and then enter modified zeolite absorption from water inlet 4 by pump A10 fills with electrochemical oxidation combination
In putting 19, water climbing speed is 8m/h, residence time 15min；During electrolysis, it is by the voltage-regulation between anode 6 and negative electrode 3
5V, modified zeolite absorption and the plate current density of electrochemical oxidation combined apparatus 19 are 80A/m2；
3rd, modified zeolite adsorption flows out with the waste water after the processing of electrochemical oxidation combined apparatus 19 from delivery port 1, passes through
Detection mouth samples, and after the detection of detection meter 18 is up to standard, waste water enters salt enrichment facility 15, is flowed back from the enriched chamber of salt enrichment facility 15
Salt solution is to tank 8 is adjusted, and from desalting chamber's Chinese effluent of salt enrichment facility 15, sour room and alkali room reclaim acid ＆ alkali liquid reuse to producing work
Section.
10d operation results show, are 15.0m in flow3/ h, inflow 120m3/ d, raw water ammonia nitrogen concentration are 500~600
Under conditions of mg/L, the processing water of zeolite per ton is about 40m3(waste water)/t (zeolite).Single treatment ammonia nitrogen in waste water concentration is all
Below 5mg/L can be dropped to, for chlorine ion concentration in 3mg/L or so, water outlet reaches urban wastewater treatment firm pollutant emission standard
One-level A standards in GB 18918-2002, occasionally there is the exceeded situation of water outlet ammonia nitrogen, can be up to standard after secondary cycle；NF membrane fills
Processing salt solution is put, it is relatively low to chlorination sodium waste, 5% or so.
Embodiment 5
First, the preparation of modified zeolite：It is 10wt% being put into sodium chloride concentration by natural mordenite zeolite under ambient temperature
Solution in soak 24 hours, then cleaned with water circulation after 8.5 hours and obtain modified zeolite finished product；Described natural zeolite is this
The conventional natural zeolite in field, preferably natural mordenite zeolite, more preferably boiled for the natural mercerising that original producton location is Jinyun county, Zhejiang province
Stone；
Using the structure of modified zeolite adsorption tower series connection three-diemsnional electrode, titanium plate cathode is alternately arranged with graphite anode, two electricity
Pole Average distance 20mm, provided with single modified zeolite adsorption tower；In electrochemical appliance side, one of bottom side is respectively equipped with
Line, the PVC pipeline with throttle and flowmeter is mounted with, as inlet pipeline；Opposite side is provided with top side line, as
Outlet pipeline；Refluxing opening is left in regulation tank both sides, and is mounted with the PVC pipeline with throttle and peristaltic pump, respectively
As brine regeneration liquid reuse pipe and wastewater effluent return duct；Modified zeolite is inserted in a manner of interlayer, spacing is between interlayer
200mm, the dosage of filler for 1/8 adsorption tower void tower can accommodate the weight of waste water, and (waste water density is with 1 × 103kg/m3Meter)；
In the present embodiment, the knot after being connected using two modified zeolite absorption with electrochemical oxidation combined apparatus 19
Structure；Anode is the ceramic electrode of load brown lead oxide, and negative electrode is titanium plate, two electrode Average distance 80mm；Inserted in a manner of interlayer
Modified zeolite, spacing is 200mm between interlayer, the dosage of filler can be accommodated for 1/6 device empty room waste water weight (waste water density with
1×103kg/m3Meter).One modified zeolite absorption is connected with the water inlet of electrochemical oxidation combined apparatus 19 adjusts tank 8, one
Modified zeolite adsorbs directly is connected the absorption of another modified zeolite with the delivery port of electrochemical oxidation combined apparatus 19 by pipeline
With the water inlet of electrochemical oxidation combined apparatus 19, and the absorption of another modified zeolite and the water outlet of electrochemical oxidation combined apparatus 19
Pipeline connects triple valve 17.
2nd, ammonia nitrogen waste water is entered in regulation tank 8 by ammonia nitrogen waste water water inlet pipe 9, then by 3wt%'s in tank 8 is adjusted
Sodium chloride is directly added into waste water, and then enter a modified zeolite absorption from water inlet 4 by pump A10 joins with electrochemical oxidation
With in device 19, water climbing speed is 2m/h, residence time 45min；During electrolysis, the voltage between anode 6 and negative electrode 3 is adjusted
Save as 6V, modified zeolite absorption and the plate current density of electrochemical oxidation combined apparatus 19 are 100A/m2；
3rd, processed waste water enters after a modified zeolite absorption is flowed out with the top of electrochemical oxidation combined apparatus 19
Another modified zeolite is adsorbed with repeating electroxidation operation in electrochemical oxidation combined apparatus 19；
4th, adsorb through another modified zeolite and flowed with the waste water after the processing of electrochemical oxidation combined apparatus 19 from delivery port 1
Go out, sampled by detection mouth, after the detection of detection meter 18 is up to standard, waste water enters salt enrichment facility 15, from the dense of salt enrichment facility 15
Contracting room backflow salt solution is to tank 8 is adjusted, from desalting chamber's Chinese effluent of salt enrichment facility 15, sour room and alkali room recovery acid ＆ alkali liquid reuse
To production workshop section.
Operation result shows, is 4.0m in flow3/ h, inflow 60m3/ d, raw water ammonia nitrogen concentration are 800~1000mg/L
Under conditions of, the processing water of zeolite per ton is about 25m3(waste water)/t (zeolite).Waste water ammonia after single treatment or repeatedly circulation
Nitrogen concentration can all drop to below 5mg/L, and for chlorine ion concentration in 3mg/L or so, water outlet reaches urban wastewater treatment firm pollutant
One-level A standards in discharge standard GB 18918-2002；Nano filter membrance device handles salt solution, relatively low to chlorination sodium waste, left 5%
It is right.
The modified zeolite absorption of the present invention and ammonia nitrogen waste water treatment method high treating effect associated with electrochemical oxidation, especially
Be be directed to containing in, Low Concentration Ammonia Containing Wastewater it is better, zeolite utilization rate is high, cost is low and can realize zero-emission.This
The continuous operation that invention regenerates by modified zeolite, during ammonia nitrogen removal, it is not necessary to other chemicals are added, can also ammonia
Nitrogen is converted into nitrogen, green, and the modified zeolite preparation method used is simple, to containing in, in Low Concentration Ammonia Containing Wastewater
Ammonia nitrogen carry out adsorption efficiency it is very high.Ammonia nitrogen waste water processing system of the present invention is using processing method of the present invention in processing procedure
Reusability can be carried out to modified zeolite, while solve the shortcomings that electrochemicial oxidation is slower, and modifying agent used
Recycling can be realized.Method of wastewater treatment of the present invention can ensure what original conventional sewage treatment process was basically unchanged
Under the conditions of, by increasing corresponding steps and conventional equipment, urban wastewater treatment firm pollutant emission can be stably reached
One-level A standards in standard GB 18918-2002：An Dan≤8mg/L, this standard are highest standard in current all standards.
This modified zeolite absorption with electrochemical oxidation associated with ammonia nitrogen waste water treatment method description in, it is necessary to explanation
It is that unless otherwise clearly defined and limited, term " setting ", " connected " and " connection " should be interpreted broadly, for example, it may be
It is fixedly connected or is detachably connected, or is integrally connected；Can be joined directly together, can also be by between intermediary
Connect connected, can be the connection of two element internals.For the ordinary skill in the art, can be understood with concrete condition
The concrete meaning of above-mentioned term in the present invention.
The better embodiment of this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, can also be on the premise of this patent objective not be departed from one skilled in the relevant art's possessed knowledge
Make a variety of changes.
Claims (6)
1. a kind of modified zeolite absorption and ammonia nitrogen waste water treatment method associated with electrochemical oxidation, it is characterised in that including following
Step：
First, the preparation of modified zeolite：By natural zeolite at normal temperatures, soaked in the solution that sodium chloride concentration is 5-15wt% is put into
Bubble, then cleaned with water and obtain modified zeolite finished product；
2nd, ammonia nitrogen waste water enters in regulation tank, then 1-5wt% sodium chloride is directly added into waste water in tank is adjusted, so
Waste water is pumped into modified zeolite absorption with being electrolysed in electrochemical oxidation combined apparatus afterwards；
3rd, modified zeolite adsorption flows out with the waste water after the processing of electrochemical oxidation combined apparatus, after detection is up to standard, waste water
Into salt enrichment facility, salt solution is flowed back to regulation tank from the enriched chamber of salt enrichment facility, from desalting chamber's water outlet of salt enrichment facility
Discharge.
2. modified zeolite absorption according to claim 1 and ammonia nitrogen waste water treatment method associated with electrochemical oxidation, it is special
Sign is, in step 1 by natural zeolite at a temperature of 25-26 DEG C, is soaked in the solution that sodium chloride concentration is 5-15wt% is put into
20-25 hours are steeped, then modified zeolite finished product is obtained after cleaning 8-9 hours with water circulation.
3. modified zeolite absorption according to claim 1 and ammonia nitrogen waste water treatment method associated with electrochemical oxidation, it is special
Sign is, the modified zeolite absorption and electrochemical oxidation combined apparatus include it is coaxial mounted positioned at outside sheath,
Internally positioned tubulose or cylindrical cathode, anode are provided with positive terminal, and negative electrode is provided with negative terminal, modified zeolite absorption with
Electrochemistry cavity, the modified zeolite absorption and electrification are nested to form by negative electrode and anode inside electrochemical oxidation combined apparatus
The side lower end for learning oxidation combined apparatus is provided with water inlet, and modified zeolite is adsorbed on the opposite side with electrochemical oxidation combined apparatus
End is provided with a delivery port；Described electrochemistry inside cavity is direct or the filling-modified zeolite filler of interlayer.
4. modified zeolite absorption according to claim 3 and ammonia nitrogen waste water treatment method associated with electrochemical oxidation, it is special
Sign is, when being electrolysed in step 2, the voltage between anode and negative electrode is 5-6V, and modified zeolite absorption is combined with electrochemical oxidation
The plate current density of device is 80-120A/m2。
5. modified zeolite absorption according to claim 1 and ammonia nitrogen waste water treatment method associated with electrochemical oxidation, it is special
Sign is that described natural zeolite is natural mordenite zeolite.
6. modified zeolite absorption according to claim 1 and ammonia nitrogen waste water treatment method associated with electrochemical oxidation, it is special
Sign is that described natural zeolite is the natural mordenite zeolite that original producton location is Jinyun county, Zhejiang province.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109133442A (en) * | 2018-09-26 | 2019-01-04 | 上海力脉环保设备有限公司 | It is drained outside a kind of pair of breeding wastewater and propose the improved system of mark and its process |
| CN109160645A (en) * | 2018-11-13 | 2019-01-08 | 华北理工大学 | A kind of organic matter of sewage and heavy metal ion decomposition apparatus and its sewage biodegrading process |
| CN111410343A (en) * | 2019-01-08 | 2020-07-14 | 宝山钢铁股份有限公司 | Ammonia nitrogen removal device and method for acid regeneration acid-containing wastewater |
| SE543570C2 (en) * | 2020-01-15 | 2021-03-30 | Adam Slabon | Method for wastewater treatment and removal of nitrate and/or nitrite ions |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103232093A (en) * | 2013-05-09 | 2013-08-07 | 哈尔滨工业大学 | Method for quickly removing ammonia nitrogen out of water discharged by municipal sewage plant by means of electrochemical coupling zeolite absorption |
| CN204325003U (en) * | 2014-07-11 | 2015-05-13 | 上海博丹环境工程技术有限公司 | A kind of ammonia nitrogen waste water treatment system |
| CN105084651A (en) * | 2015-07-28 | 2015-11-25 | 山西诺凯化工技术有限公司 | Purification treatment and pure-salt recovery process for strong-salt wastewater in coal chemical industry |
| CN105314704A (en) * | 2014-07-11 | 2016-02-10 | 上海博丹环境工程技术股份有限公司 | Ammonia-nitrogen wastewater processing method and system, and sodium modified zeolite regeneration method |
| CN205653196U (en) * | 2016-05-16 | 2016-10-19 | 安徽圣诺贝化学科技有限公司 | High acid high ammonia -nitrogen concentration effluent disposal system |
-
2017
- 2017-08-10 CN CN201710680875.4A patent/CN107486143A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103232093A (en) * | 2013-05-09 | 2013-08-07 | 哈尔滨工业大学 | Method for quickly removing ammonia nitrogen out of water discharged by municipal sewage plant by means of electrochemical coupling zeolite absorption |
| CN204325003U (en) * | 2014-07-11 | 2015-05-13 | 上海博丹环境工程技术有限公司 | A kind of ammonia nitrogen waste water treatment system |
| CN105314704A (en) * | 2014-07-11 | 2016-02-10 | 上海博丹环境工程技术股份有限公司 | Ammonia-nitrogen wastewater processing method and system, and sodium modified zeolite regeneration method |
| CN105084651A (en) * | 2015-07-28 | 2015-11-25 | 山西诺凯化工技术有限公司 | Purification treatment and pure-salt recovery process for strong-salt wastewater in coal chemical industry |
| CN205653196U (en) * | 2016-05-16 | 2016-10-19 | 安徽圣诺贝化学科技有限公司 | High acid high ammonia -nitrogen concentration effluent disposal system |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109133442A (en) * | 2018-09-26 | 2019-01-04 | 上海力脉环保设备有限公司 | It is drained outside a kind of pair of breeding wastewater and propose the improved system of mark and its process |
| CN109160645A (en) * | 2018-11-13 | 2019-01-08 | 华北理工大学 | A kind of organic matter of sewage and heavy metal ion decomposition apparatus and its sewage biodegrading process |
| CN109160645B (en) * | 2018-11-13 | 2021-06-18 | 华北理工大学 | Sewage organic matter and heavy metal ion degradation device and sewage degradation method thereof |
| CN111410343A (en) * | 2019-01-08 | 2020-07-14 | 宝山钢铁股份有限公司 | Ammonia nitrogen removal device and method for acid regeneration acid-containing wastewater |
| CN111410343B (en) * | 2019-01-08 | 2022-06-28 | 宝山钢铁股份有限公司 | Ammonia nitrogen removal device and method for acid regeneration acid-containing wastewater |
| SE543570C2 (en) * | 2020-01-15 | 2021-03-30 | Adam Slabon | Method for wastewater treatment and removal of nitrate and/or nitrite ions |
| SE2050024A1 (en) * | 2020-01-15 | 2021-03-30 | Adam Slabon | Method for wastewater treatment and removal of nitrate and/or nitrite ions |
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