CN108862750A - A kind of Nitrogen-and Phosphorus-containing sewage disposal device and intermediate water reuse system and its method - Google Patents
A kind of Nitrogen-and Phosphorus-containing sewage disposal device and intermediate water reuse system and its method 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
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
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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
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
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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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus 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
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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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
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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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
- C02F2303/00—Specific treatment goals
- C02F2303/16—Regeneration of sorbents, filters
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Abstract
A kind of Nitrogen-and Phosphorus-containing sewage disposal device and intermediate water reuse system of the present invention, including：Sewage collecting pool；Pretreatment pool：Sensor unit is installed in pretreatment pool；Deodorization tank；PH conditioning tank；Electrochemical reaction cell；Ultrafiltration apparatus：Ultrafiltration apparatus includes sequentially connected reverse osmosis high-pressure pump, active carbon filter, more medium filter and ultrafiltration membrane filter；Sterilization pool；Middle water collecting pit.The system can be handled Nitrogen-and Phosphorus-containing sewage, the removal rate of nitrogen phosphorus is high, high degree of automation, water meets reuse requirement during treated, discharge amount of the waste water to environment is reduced, the pollution problem of nitrogen phosphorus in sewage is solved, makes full use of water resource, the sustainability for realizing resource utilizes, and obtains higher economic benefit and environmental benefit.
Description
Technical field
The present invention relates to ship liquid waste disposal technique field, in particular to a kind of Nitrogen-and Phosphorus-containing sewage disposal device and middle water return
Use system and method.
Background technique
Nitrogen phosphorus is one of the main reason for causing water eutrophication.In general when water body nitrogen content be greater than 0.2mg/L,
When phosphorus content is greater than 0.02mg/L, water body just will appear eutrophication.It can cause the mass propagation of algae after water eutrophication,
On the one hand the dissolved oxygen in consumption water, causes the mortality of the aquatic animals and plants such as fishes and shrimps in water body.Under normal conditions, 1mg ammonia
Nitrogen is converted into nitrate nitrogen under the catalysis of nitrobacteria and needs to consume oxygen in water 4.57mg.On the other hand, dead algae
Foul gas can be generated with decomposition such as fishes and shrimps, nitrogen phosphorus is constantly discharged, forms new pollution sources, such vicious circle causes water water
Matter deteriorates.Certain poisonous and harmful substances can be discharged in algal grown and decomposable process, endanger culture fishery, to human being's production and
Life causes to perplex.
Nitrogen in waste water mainly exists in the form of inorganic nitrogen and organic nitrogen, and inorganic nitrogen includes ammonia nitrogen and nitrate nitrogen, is had
Machine nitrogen includes urea, protein, amino acid, the itrogenous organic substances such as organic base.At present both at home and abroad on water body NH3-N elimination method
It is broadly divided into physical-chemical process and biological denitrificaion method.Physical-chemical process has break point chlorination, chemical precipitation method, absorption method, ion
Exchange process, blow-off method and gas floatation process, liquid-film method, electroosmose process, catalytic wet air oxidation etc..Using and the more method master of research
Have：Bioanalysis, air stripping method, ion-exchange, break point chlorination, absorption method, Electrocatalytic Oxidation and chemical precipitation method
Deng.But sewage is also not up to reuse standard after carrying out NH_3-N treating.
Therefore, it is necessary to the systems that a kind of processing of sewage water denitrification phosphorus and Treated sewage reusing are joined together, and recycle-water is used to rinse
Lavatory pours and afforests, cleans road etc., avoids the problem that water pollution and energy waste.
Summary of the invention
Above-mentioned to solve the problems, such as, the purpose of the present invention is to provide a kind of Nitrogen-and Phosphorus-containing sewage disposal device and middle water
Reclaiming system.The system can be handled Nitrogen-and Phosphorus-containing sewage, and the removal rate of nitrogen phosphorus is high, high degree of automation, after processing
Middle water meet reuse requirement, reduce discharge amount of the waste water to environment, solve the pollution problem of nitrogen phosphorus in sewage, make full use of
Water resource, the sustainability for realizing resource utilize, and obtain higher economic benefit and environmental benefit.
In order to achieve the above objectives, the technical scheme is that：
A kind of Nitrogen-and Phosphorus-containing sewage disposal device and intermediate water reuse system, including：
Sewage collecting pool：Sewage can be received from drainage system；
Pretreatment pool：The water inlet of pretreatment pool and the water outlet of sewage collecting pool connect, and are equipped with sensor in pretreatment pool
Unit, sensor unit include odorimeter and pH meter, and there are three output ends for pretreatment pool, are separately connected deodorization tank, pH conditioning tank
And electrochemical reaction cell, it is detected by smell and pH value of the sensor unit to the sewage being collected into, once it is more than default
Value then carries out corresponding deodorization to sewage and adjusts pH processing, eliminates stink, and pH value is adjusted to OK range；
Deodorization tank：For handling the smell of sewage；Using ozone, deodorization is carried out to the smell discharged in deodorization tank；
PH conditioning tank：For adjusting the pH value of sewage, pH conditioning tank is connect with deodorization tank by pipeline；Using acetic acid and sodium acetate
PH value is adjusted to 6 ~ 7.5, or pH value is adjusted to 5.8 ~ 8 using potassium hydrogen phosphate and dipotassium hydrogen phosphate；
Electrochemical reaction cell：The input terminal of electrochemical reaction cell is connect with the output end of deodorization tank, pH conditioning tank respectively, electrochemistry
At least provided with one group of electrode in reaction tank, using electrochemical method except the nitrogen P elements in decontaminated water, removal rate is high；
Ultrafiltration apparatus：The water inlet of ultrafiltration apparatus and the water outlet of electrochemical reaction cell connect, and the ultrafiltration apparatus includes successively
Reverse osmosis high-pressure pump, active carbon filter, more medium filter and the ultrafiltration membrane filter of connection cross leaching in ultrafiltration apparatus
COD substance, fine particle and some colloidal particles in water, purify water；
Sterilization pool：It is connect with ultrafiltration apparatus, water collecting pit in the water outlet connection of sterilization pool, investment sodium hypochlorite carries out
The harmful bacteria in water is killed in disinfection treatment；
Middle water collecting pit：It is connected with Backwash pipeline, is connected to by Backwash pipeline with filter each in ultrafiltration apparatus, middle water is received
Ji Chi is connected to Treated sewage reusing pipe network.
Further, the position that the sewage collecting pool is connect with drainage system is provided with grid.Solid impurity is carried out
Primary filtration.
Further, the ultrafiltration membrane filter uses hollow fiber composite membrane.Hollow fiber composite membrane filter effect is good,
Can go out the substance of fine particle.
Further, backwash pump is provided in the Backwash pipeline, backwash pump is mounted on middle water collecting pit
It is interior.After running after a period of time, the pollutant of retention increases each filter, and head loss increases, at this time starting backwash
Water pump recoils to it, to guarantee the continuous and steady operation of system, and middle water has been recycled, and saves water source.
Further, backwash outlet pipe is additionally provided on the ultrafiltration apparatus.
Further, liquidometer is additionally provided in the middle water collecting pit.
A kind of method of Nitrogen-and Phosphorus-containing sewage disposal device and intermediate water reuse system, includes the following steps：
1）Sewage enters pretreatment pool through buck collecting pit；
2）Sensor unit detects the smell and pH of sewage in pretreatment pool, when the obtained odour value of detection or pH value are super
When crossing predetermined acceptable value, sewage enters corresponding deodorization tank or pH conditioning tank through output end, and deodorization tank is for handling sewage
Smell, pH conditioning tank is used to handle the pH value of sewage, and the odour value or pH value obtained when detection is in predetermined acceptable value model
When enclosing interior, sewage is directly entered electrochemical reaction cell；
3）Comprising at least one set of electrode in electrochemical reaction cell, every group of electrode includes first electrode and second electrode, wherein first
The material of electrode is magnesium or magnesium alloy, and second electrode uses graphite, and uses bidirectional pulse power supply, and it is heavy to ultimately form ammonium magnesium phosphate
Starch is separated；
4）By the power of reverse osmosis high-pressure pump offer, the sewage after denitrogenation phosphorus enters ultrafiltration apparatus from chain-dotted line reaction tank, according to
It is secondary to be filtered by active carbon filter, more medium filter and ultrafiltration membrane filter；
5）Filtered sewage enters sterilization pool, and the sodium hypochlorite for adding 15 ~ 25mg/L carries out sterilizing
Reuse, enter after disinfection in the storage of water collecting pit, enter specified watering place through Treated sewage reusing pipe network when use, water returns in completion
With；
6）After the filtering of ultrafiltration apparatus through a long time, the filter layer in each filter can be blocked, and stop sewage treatment at this time
Equipment and intermediate water reuse system work, open backwash pump, and the middle water in middle water collecting pit enters ultrafiltration through Backwash pipeline
Dress, backwashes each filter layer, takes away the waste of filtering layer surface retention, and flow out along backwash outlet pipe, from
And improve the using effect of ultrafiltration apparatus.
Further, the step 6）Middle backwash flux control is in 130L/m2.hr, backwashing pressure≤0.3MPa, instead
Washing time > 30s.
The beneficial effects of the present invention are：
A kind of Nitrogen-and Phosphorus-containing sewage disposal device and intermediate water reuse system provided by the invention, can be to Nitrogen-and Phosphorus-containing sewage at
The removal rate of reason, nitrogen phosphorus is high, high degree of automation, and treated, and middle water meets reuse requirement, reduces discharge of the waste water to environment
Amount, solve the pollution problem of nitrogen phosphorus in sewage, make full use of water resource, realize resource sustainability utilize, obtain compared with
High economic benefit and environmental benefit, while application method is simple, long service life.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of a kind of Nitrogen-and Phosphorus-containing sewage disposal device of the present invention and intermediate water reuse system.
Wherein：1 is buck collecting pit, and 2 be pretreatment pool, and 20 be odorimeter, and 21 be pH meter, and 3 be deodorization tank, and 4 be pH tune
Pond is saved, 5 be electrodialytic cell, and 6 be ultrafiltration apparatus, and 60 pump for reverse osmosis high-pressure, and 61 be active carbon filter, and 62 be multi-medium filtering
Device, 63 be ultrafiltration membrane filter, and 7 be sterilization pool, and 8 be middle water collecting pit, and 9 be Backwash pipeline, and 10 be backwash pump, and 11 are
Backwash outlet pipe.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments into
One step is described in detail.
Embodiment 1
A kind of Nitrogen-and Phosphorus-containing sewage disposal device and intermediate water reuse system, including：
Sewage collecting pool 1：Sewage can be received from drainage system；
Pretreatment pool 2：The water inlet of pretreatment pool 1 and the water outlet of sewage collecting pool connect, and are equipped with sensing in pretreatment pool 2
Device unit, sensor unit include odorimeter 60 and pH meter 61, pretreatment pool 2 there are three output end, be separately connected deodorization tank 3,
PH conditioning tank 4 and electrochemical reaction cell 5；
Deodorization tank 3：For handling the smell of sewage；
PH conditioning tank 4：For adjusting the pH value of sewage, pH conditioning tank 4 is connect with deodorization tank 3 by pipeline；
Electrochemical reaction cell 5：The input terminal of electrochemical reaction cell 5 is connect with the output end of deodorization tank 3, pH conditioning tank 4 respectively, electricity
At least provided with one group of electrode in chemical reaction pond 5；
Ultrafiltration apparatus 6：The water inlet of ultrafiltration apparatus 6 is connect with the water outlet of electrochemical reaction cell 5, and the ultrafiltration apparatus 6 includes
Sequentially connected reverse osmosis high-pressure pump 60, active carbon filter 61, more medium filter 62 and ultrafiltration membrane filter 63；
Sterilization pool 7：It is connect with ultrafiltration apparatus 6, water collecting pit 8 in the water outlet connection of sterilization pool 7；
Middle water collecting pit 8：It is connected with Backwash pipeline 9, is connected to by Backwash pipeline 9 with each filter in ultrafiltration apparatus 6, in
Water collecting pit 8 is connected to Treated sewage reusing pipe network.
Further, the position that the sewage collecting pool 1 is connect with drainage system is provided with grid.
Further, the ultrafiltration membrane filter 63 uses hollow fiber composite membrane.
Further, backwash pump 10 is provided in the Backwash pipeline 9, backwash pump 10 is mounted on middle water and receives
Collect in pond 8.
Further, backwash outlet pipe 11 is additionally provided on the ultrafiltration apparatus.
Further, liquidometer is additionally provided in the middle water collecting pit 8.
The working method of the Nitrogen-and Phosphorus-containing sewage disposal device and intermediate water reuse system, includes the following steps：
1）Sewage enters pretreatment pool 2 through buck collecting pit 1；
2）Sensor unit detects the smell and pH of sewage in pretreatment pool 2, when the odour value or pH value that detection obtains
When more than predetermined acceptable value, sewage enters corresponding deodorization tank 3 or pH conditioning tank 4 through output end, and deodorization tank 4 is for handling
The smell of sewage, pH conditioning tank 4 are used to handle the pH value of sewage, and the odour value or pH value obtained when detection is predetermined acceptable etc.
When in grade range, sewage is directly entered electrochemical reaction cell 5；
3）Comprising at least one set of electrode in electrochemical reaction cell 5, every group of electrode includes first electrode and second electrode, wherein first
The material of electrode is magnesium or magnesium alloy, and second electrode uses graphite, and uses bidirectional pulse power supply, and it is heavy to ultimately form ammonium magnesium phosphate
Starch is separated, and the removal rate of nitrogen is 90.3%, and the removal rate of phosphorus is 95.5%；
4）By the power of 60 offer of reverse osmosis high-pressure pump, the sewage after denitrogenation phosphorus enters ultrafiltration apparatus 6 from chain-dotted line reaction tank,
Active carbon filter 61, more medium filter 62 and ultrafiltration membrane filter 63 are passed sequentially through to be filtered；
5）Filtered sewage enters sterilization pool 7, and the sodium hypochlorite for adding 15 ~ 25mg/L carries out sterilizing
Reuse, enter after disinfection in water collecting pit 8 store, enter specified watering place through Treated sewage reusing pipe network when use, water returns in completion
With water outlet SDI（Pollution index）≤3；
6）After the filtering of 6 through a long time of ultrafiltration apparatus, the filter layer in each filter can be blocked, and stop sewage treatment at this time
Equipment and intermediate water reuse system work, open backwash pump 10, and the middle water in middle water collecting pit 8 enters through Backwash pipeline 9
Ultrafiltration apparatus 6 backwashes each filter layer, takes away the waste of filtering layer surface retention, and along backwash outlet pipe
11 outflows, to improve the using effect of ultrafiltration apparatus 6.
It should be noted that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting.Although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to the technology of invention
Scheme is modified or replaced equivalently, and without departing from the range of technical solution of the present invention, should all be covered in power of the invention
In sharp claimed range.
Claims (8)
1. a kind of Nitrogen-and Phosphorus-containing sewage disposal device and intermediate water reuse system, which is characterized in that including：
Sewage collecting pool（1）：Sewage can be received from drainage system；
Pretreatment pool（2）：Pretreatment pool（2）Water inlet and sewage collecting pool（1）Water outlet connection, pretreatment pool（2）It is interior
Sensor unit is installed, sensor unit includes odorimeter（20）And pH meter（21）, there are three output ends for pretreatment pool, respectively
Connect deodorization tank（3）, pH conditioning tank（4）And electrochemical reaction cell（5）；
Deodorization tank（3）：For handling the smell of sewage；
PH conditioning tank（4）：For adjusting the pH value of sewage, pH conditioning tank is connect with deodorization tank by pipeline；
Electrochemical reaction cell（5）：Electrochemical reaction cell（5）Input terminal respectively with deodorization tank（3）, pH conditioning tank（4）Output
End connection, electrochemical reaction cell（5）It is interior at least provided with one group of electrode；
Ultrafiltration apparatus（6）：Ultrafiltration apparatus（6）Water inlet and electrochemical reaction cell（5）Water outlet connection, the ultrafiltration apparatus
（6）It is pumped including sequentially connected reverse osmosis high-pressure（60）, active carbon filter（61）, more medium filter（62）And ultrafiltration membrane mistake
Filter（63）；
Sterilization pool（7）：With ultrafiltration apparatus（6）Connection, sterilization pool（7）Water outlet connection in water collecting pit（8）；
Middle water collecting pit（8）：It is connected with Backwash pipeline（9）, pass through Backwash pipeline（9）With ultrafiltration apparatus（6）Interior each filtering
Device connection, middle water collecting pit（8）It is connected to Treated sewage reusing pipe network.
2. a kind of Nitrogen-and Phosphorus-containing sewage disposal device according to claim 1 and intermediate water reuse system, which is characterized in that described
Sewage collecting pool（1）The position connecting with drainage system is provided with grid.
3. a kind of Nitrogen-and Phosphorus-containing sewage disposal device according to claim 1 and intermediate water reuse system, which is characterized in that described
Ultrafiltration membrane filter（63）Using hollow fiber composite membrane.
4. a kind of Nitrogen-and Phosphorus-containing sewage disposal device according to claim 1 and intermediate water reuse system, which is characterized in that described
Backwash pipeline（9）On be provided with backwash pump（10）, backwash pump（10）It is mounted on middle water collecting pit（8）It is interior.
5. a kind of Nitrogen-and Phosphorus-containing sewage disposal device according to claim 1 and intermediate water reuse system, which is characterized in that described
Ultrafiltration apparatus（6）On be additionally provided with backwash outlet pipe（11）.
6. a kind of Nitrogen-and Phosphorus-containing sewage disposal device according to claim 1 and intermediate water reuse system, which is characterized in that described
Middle water collecting pit（8）Inside it is additionally provided with liquidometer.
7. the method for a kind of Nitrogen-and Phosphorus-containing sewage disposal device as described in claim 1 and intermediate water reuse system, which is characterized in that
Include the following steps：
Sewage is through buck collecting pit（1）Into pretreatment pool；
Sensor unit is to pretreatment pool（2）The smell and pH of middle sewage are detected, when the odour value or pH value that detection obtains
When more than predetermined acceptable value, sewage enters corresponding deodorization tank through output end（3）Or pH conditioning tank（4）, deodorization tank（3）With
In the smell of processing sewage, pH conditioning tank（4）For handling the pH value of sewage, making a reservation for when detecting obtained odour value or pH value
When within the scope of acceptable value, sewage is directly entered electrochemical reaction cell（5）；
Electrochemical reaction cell（5）Interior includes at least one set of electrode, and every group of electrode includes first electrode and second electrode, wherein first
The material of electrode is magnesium or magnesium alloy, and second electrode uses graphite, and uses bidirectional pulse power supply, and it is heavy to ultimately form ammonium magnesium phosphate
Starch is separated；
It is pumped by reverse osmosis high-pressure（60）The power of offer, the sewage after denitrogenation phosphorus enter ultrafiltration apparatus from chain-dotted line reaction tank
（6）, pass sequentially through active carbon filter（61）, more medium filter（62）And ultrafiltration membrane filter（63）To be filtered；
Filtered sewage enters sterilization pool（7）, add the sodium hypochlorite progress sterilizing of 15 ~ 25mg/L
Reuse, enter after disinfection in water collecting pit（8）Storage enters specified watering place, water in completion through Treated sewage reusing pipe network when use
Reuse；
Ultrafiltration apparatus（6）After through a long time filtering, the filter layer in each filter can be blocked, and stop sewage treatment at this time
Equipment and intermediate water reuse system work, open backwash pump（10）, middle water collecting pit（8）Interior middle water is through Backwash pipeline
（9）Into ultrafiltration apparatus（6）, each filter layer is backwashed, takes away the waste of filtering layer surface retention, and along recoil
Wash out water pipe（11）Outflow, to improve ultrafiltration apparatus（6）Using effect.
8. the method for a kind of Nitrogen-and Phosphorus-containing sewage disposal device according to claim 7 and intermediate water reuse system, feature exist
In the step 6）Middle backwash flux control is in 130L/m2.hr, backwashing pressure≤0.3MPa, backwashing time > 30s.
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Cited By (1)
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| CN114074996A (en) * | 2020-08-18 | 2022-02-22 | 伟泰科技（无锡）有限公司 | Recovery processing system of electroplating sewage |
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