CN105271571A - Sewage treatment core process - Google Patents
Sewage treatment core process Download PDFInfo
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- CN105271571A CN105271571A CN201510701248.5A CN201510701248A CN105271571A CN 105271571 A CN105271571 A CN 105271571A CN 201510701248 A CN201510701248 A CN 201510701248A CN 105271571 A CN105271571 A CN 105271571A
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Abstract
The invention discloses a sewage treatment core process. The sewage treatment core process comprises four conventional basic links including regulation, reaction, flocculation as well as filtration and sedimentation. In the whole process, control is performed on the basis of pH values of water bodies at process points, and various parameters can be set according to requirements of water inlet and outlet indexes. Following representative characteristics and advantages of an ion separation chemical of an applicant in actual application can be guaranteed sufficiently: the chemical feeding amount is small, 10-300 g of the chemical is fed per ton of water, solid-state chemical is fed directly without dilution, sewage is treated in real time without caching (the reaction speed is 3-15 min), the water body content removal rate is higher than 80%, various national sewage treatment emission indexes can be obeyed and met, water after treatment is colorless and free of off-smell and secondary hazardous chemical substances, and sludge produced through flocculation has low water content (smaller than 35%), is free of stink, is not adhesive and the like.
Description
Technical field
The present invention relates to sewage treatment process and method field, specifically relate to a kind of sewage disposal core process.
Background technology
In recent years, along with the development of demographic and economic, environmental problem is day by day serious, and the Chinese government and numerous people are paid close attention.Wherein the problem of water pollutions becomes in numerous environmental problem and compares an emphasis difficult problem, and water pollutions causes soil pollution, then causes atmospheric pollution, destroys overall ecotope.The main source of water pollutions is sanitary sewage and industrial sewage, and wherein industrial sewage stands in the breach.At present, sewage disposal is mainly divided into three kinds of technical approach such as Physical, chemical method and biological process; Wherein the power consumption of Physical majority is serious, needs a large amount of electric power energies, comprises multiple-effect evaporation, ionization etc.; And chemical process normally adds high molecular oxygenant and chemical floc (such as polyacrylamide (PAM) or polymerize aluminum chloride (PAC)) etc. in water; But, there is large, the prior good water dilution of chemical feeding quantity and proportioning, staticly settle for a long time, can not stir, produce secondary chemical hazard material and produce the high shortcoming of sludge moisture content in chemical floc, unavoidably in actual process and operation, there is larger problem; Such as flocculation rate is slow, current buffer memory is large with reaction auxiliary facility floor space, water resources and land wastage more serious, secondary pollution etc. is formed to water surrounding, larger problem uses chemical floc can bring very large puzzlement to the sludge treatment that it produces, electrical energy drive sludge filter press that not only will be very large or whizzer, and mud smell is very smelly, and after press filtration process, the water ratio of mud is still up to more than 60%.Biochemical process is widely used at present, especially in sanitary sewage disposal, its advantage be stablize, effectively, operation cost is low, but its limitation is the waste water that can not process the biodegradability such as high-enriched organics and high salt extreme difference, bacteria domestication is high with cultivation difficulty repeatedly, and even some wastewater from chemical industry can also kill biochemical activity bacterium; Although this is also that current China urban wastewater treatment firm is in large scale, still to garbage leachate and the helpless reason of trade effluent.
Summary of the invention
The proprietary technology product ion that the present invention is directed to applicant is separated medicament (number of patent application: ZL201480001546.7) and specially designed sewage disposal core process.Optimize the method that conventional physical is disposed of sewage, evade the drawback that chemical process is disposed of sewage, and the technique can disposed of sewage in conjunction with biochemical method, expand sewage disposal scope, improve wastewater treatment efficiency.
Number of patent application: the composition of the process waste water related in 201480001546.7, it comprises: percentage ratio by weight, 43.7-46.2% wilkinite; 24.1-25.9% Tai-Ace S 150 (Al
2(SO
4)
3), wherein, Al
2(SO
4)
3particle diameter be 18-74 μm; 19.2-20.8% ceramics powder; 4.8-5.2% chitosan, wherein, the particle diameter of chitosan is 44 μm; With 4.8-5.2% calcium carbonate (CaCO
3) etc.
The present invention is the sewage disposal core process and method of making to measure for ion isolation medicament and support equipment, fully can ensure the dosage of ion isolation medicament few (ton water 10-300 gram), direct solid-state dispensing does not need dilution, sewage processes in real time does not need buffer memory (speed of response 3-15 minute), water body content clearance is up to more than 80%, and can according to and meet national all kinds of sewage disposal discharge index, water colorless free from extraneous odour after process, sludge moisture content low (<35%) is produced without secondary harmful chemical and flocculation, odorless, be not stained with glutinous characteristics and advantages.Ion isolation medicament of the present invention is the solid powder preparation extracting preparation completely with natural biologic material, carries out sewage disposal based on ion isolation technology and charge neutralization principle.Its Basic Mechanism is carried out adsorbing and being polymerized by content in water body (particle, molecule and polymer chain link), form agglomerate flocculation sediment and the mode removed from water body, reversing and overturned traditional wastewater process concept, is the breakthrough lifting to physical adsorption in sewage disposal technology system and flocculation technique.Above-mentioned ion isolation medicament not only can replace widely used chemical floc product in current industry completely, but also can play a significant role in the control of Sewage treatment systems pre-treatment and water pollutions point source and sludge treatment.
The present invention for the quick application of ion isolation medicament in industry-by-industry provides can the core process of reference and method, mechanism and the feature of ion isolation medicament are taken into full account, not only can be directly applied for sanitary sewage disposal industry, and can for various trade effluents long-standing at present, the wastewater treatment such as mud and garbage leachate provides core process and method, by increasing auxiliary treatment technique ripe in corresponding industry before this invention and/or afterwards, further formation is with strong points and economical, efficiently, environmental protection, effective industry sewage process customization technological process control.
This invented technology can be used as independent sewage disposal core process module and carries out practical application, also can increase flexibly or remove other process matched therewiths, but also self series connection uses, various Sewage treatment systems technique, pre-treatment, end-o f-pipe-control and sludge treatment link can be widely used in, not only ensure the stability of effluent characteristics, reduce comprehensive operation cost, and simply (existing utility and investment can be retained to existing Sewage treatment systems transformation, such as biochemical system), newly-built Sewage treatment systems investment is low, the duration is short, floor space is little, instant effect.
The present invention is achieved through the following technical solutions:
The working conditions of ion isolation medicament is:
1, processed water pH value is adjusted to 7.0-9.0;
2, ion isolation medicament is directly thrown in processed water body under solid state powder state, and processed water body will through independently high-speed stirring and independently stirring at low speed, to improve adsorption efficiency and ion isolation degree.
3, the water after being processed and mud is separated by inclination plate settling facility.
Sewage disposal core process schema of the present invention as shown in Figure 1, comprises four sub-techniques such as A-adjustment, B-reaction, C-flocculation and D-filtering sedimentation.Sub-technique and each process point flow process, parameter, control and working method step are described below:
A, adjustment: possess the current adding ion isolation pharmacy work condition and enter thus, mainly comprise the link such as comprehensive adjustment and pH detection.Be described in detail as follows:
1) inflow requirement: book technique is first sub-technique of the present invention, water inlet source is the water after the former water of pending waste water or former water auxiliary treatment; According to the flow velocity that the capacity of flooding quantity and reaction process link reaction tank is determined, regulate water inlet flow velocity, guarantee that water body flow time in subsequent reactions and flocculation two sub-process procedures is 3-15 minute;
2) water pH value: pH value detecting sensor detects for adjustment water inlet, according to determining overall process requirements, controlling acid adding and adding alkali two links to be formed and automatically control feedback subsystem, guaranteeing in the optimum range that water pH value needs before dispensing.The pH value range that the present invention can accept water body is 3.0-11.0, and according to water-quality guideline requirement after water inlet index and process, comprehensively arranges water pH value thresholding after regulating, and after regulating, pH value is between 7.0-9.0.Water pH value setting is most important to the present invention, and the ion isolation medicament that the present invention relates to is very high to the susceptibility of water pH value, if the pH value of water body is lower than 6.0, ion isolation medicament does not react; If the pH value of water body is higher than 9.0, ion isolation medicament usage quantity will increase greatly.
It is emphasized that, during for special high-concentration waste waters such as high salt, heavy metal, garbage leachates, need in present invention process leading portion, stage casing or backend configuration acidifying or the corresponding auxiliary process such as alkalization, aeration, now water pH value needs to carry out parameter setting according to overall process requirements;
3) molecule degrees of exposure: the molecule degrees of exposure that the present invention gives tacit consent to water inlet should meet ionic adsorption condition, if the molecule degrees of exposure in water body cannot meet ionic adsorption condition, in present invention process leading portion, stage casing or backend configuration acidifying or the corresponding auxiliary process process such as alkalization, aeration, and then present invention process can be entered;
4) go out current direction: after governing loop completes, treatment sewage order is flowed to the sub-process procedure of follow-up reaction.
B, reaction: react sub-process procedure and comprise two links such as high-speed stirring, Adding medicine control.Water body needs to control at 3-15 minute at this flow time.In usual Practical Project, link is provided with reaction tank for this reason.Be described in detail as follows:
1) water inlet process: book technique water inlet source is regulon technique adjacent before it; Book technique needs the reaction tank of configure dedicated in Practical Project; The capacity of reaction tank, according to the pending water yield, flow through the time of reaction tank 3-15 minute, and the rated output of agitator motor is determined in conjunction with current.The such as water yield of 20 tphs, needs the reaction tank configuration of 1.2 cubic metres of volumes;
2) high-speed stirring: usually adopt the even high-speed stirring that agitator motor driving agitating vane keeps per minute 700-950 to turn; In order to strengthen contact and the ion isolation effect of content in water body, usual reaction tank adopts square cross-sectional configuration, the darker funnel shape of stable formation after water body stirs; After high-speed stirring is formed, can require to offer medicine according to sewage disposal;
3) Adding medicine control: according to sewage feature to be processed, the ion isolation medicament of the pressed powder thrown in needed for all kinds of is dropped in water successively, the ion isolation medicament average aggregate consumption sewage 10-300g per ton thrown in, under the state that water body continues high-speed stirring, promote the physical index of water body, comprise and smell taste, colourity and turbidity etc., promote suspended substance, heavy metal and other organic chemistry indexs of removing water body simultaneously.It is 3-15 minute that water body flows through this process time; Needed for add medicament be all directly add in sewage under pressed powder state, the using method such as this point and the chemical floc generally used at present in the industry have obviously different.Current traditional chemical flocculation agent needs to make good use of water dilution before use, and then carry out dosing input in the mode of liquid, waste time and energy, cost is high.
4) current direction is gone out: processed water body is 3-15 minute at the sub-technique flow time of reaction, enters the sub-technique of flocculation afterwards.
C, flocculation: the sub-process procedure that flocculates comprises two links such as low rate mixing, pH value detection.Water body needs to control at 3-15 minute at this flow time.In usual Practical Project, link is provided with flocculation basin for this reason.Be described in detail as follows:
1) water inlet process: book technique water inlet source is the sub-technique of reaction adjacent before it; The capacity of flocculation basin, according to the pending water yield, flow through the time of flocculation basin 3-15 minute, and the rated output of agitator motor is determined in conjunction with current.The such as water yield of 20 tphs, needs the flocculation basin configuration of 1.2 cubic metres of volumes;
2) low rate mixing: usually adopt the even stirring at low speed that agitator motor driving agitating vane keeps per minute 160-280 to turn; In order to strengthen the caking flocculation effect in water body between small coagulated particles, usual flocculation basin is identical with above-mentioned reaction tank also adopts square cross-sectional configuration, the funnel shape that after water body stirs, stable formation is very shallow; The flocculation process stage does not need dispensing;
It is emphasized that: the chemical agent that general sewage treatment process uses, natural sedimentation can only be left standstill for a long time in the flocculation process stage and can not stir, desirable flocculating effect cannot be formed once carry out stirring; This traditional concept overturned by the ion isolation medicament that the present invention uses, use the ion isolation medicament that the present invention relates to, the object of carrying out stirring in the flocculation process stage is condensed for agglomerate throw out by the small-particle throw out reacting formation, appropriateness stirring can strengthen flocculating effect, for next step filtering sedimentation work is prepared, the effect of settling of agglomerate throw out is better.
3) water pH value detects: pH value detecting sensor detects for flocculation basin water body, and detection probe is positioned at body middle and lower part, pond.According to the slightly acidic of ion isolation pharmacy work mechanism of the present invention and medicine itself, after medicine reacts completely, book operation stage water pH value should between 6.0-9.0; If water pH value is higher, it is inadequate that the sub-operation stage of proved response adds medicament, needs the cast feeder controlled in reaction process to increase dosage; Otherwise, reduce dosage;
4) current direction is gone out: processed water body is 3-15 minute at the sub-technique flow time of flocculation, enters the sub-technique of filtering sedimentation afterwards.
D, filtering sedimentation: the sub-process procedure of filtering sedimentation comprises sedimentation, filtering water outlet, water quality detection and five links such as the discharge of supporting mud and parameter adjustment.Water body needs to control at least 3-15 minute at this flow time.In usual Practical Project, link is provided with sedimentation filtering pond (such as inclined plate sedimentation pond) for this reason.The present invention uses swash plate to clarify sedimentation device.Be described in detail as follows:
1) water inlet process: book technique water inlet source is the sub-technique of flocculation adjacent before it; The capacity in inclined plate sedimentation pond is according to the pending water yield, and the time flowing through sedimentation filtering pond 3-15 minute in conjunction with current is determined.
2) filtering water outlet: according to ion isolation pharmacy work mechanism of the present invention, the mud produced after water treatment sinks under gravity, forms supernatant liquor simultaneously, supernatant liquor gets final product water outlet after filtering; Filtering water outlet operation stage does not need dispensing and motor to stir, and directly carries out sedimentation according to physical principle;
It is to be noted: the sedimentation that use traditional chemical flocculation agent forms throw out can not adopt inclined plate sedimentation, not only need long-time leaving standstill to flocculate, and generation mud is viscosity, can form mud adhesion on swash plate, maintenance cost is high; And it is not hydrophilic, sticky glutinous to the present invention is based on the throw out mud that ion isolation medicament formed, do not need long-time leaving standstill, under gravity can natural subsidence in water body flow process, adopt inclined plate sedimentation to drop into and running cost low, operation and maintenance is simple.
3) water quality detection: comprise the crucial water-quality guideline required by discharging standards such as pH value detection, COD, ammonia nitrogen, total phosphorus, sensor tip detects sedimentation filtering pond water body, and detection probe is positioned at body middle and upper part, pond.It should be noted that wherein COD index on-line checkingi has about 20-30 minute time delay;
4) mud is discharged: according to ion isolation pharmacy work mechanism of the present invention, the mud produced after water treatment sinks to being formed floc sedimentation shape sludge settling under gravity.Mud is positioned at the bottom in sedimentation filtering pond, up big and down small cone-shaped body.Be furnished with mud mouth bottom cone-shaped body, the connection regular Self-discharged of spoil disposal pipeline and/or installation sludge pump are drawn into the sludge treatment device such as sludge press filtration or whizzer.Mud can intermittent type discharge, sludge quantity can the reference frame overall process water yield 0.3 ‰ to 1.5 ‰ calculate.According to ion isolation medicament characteristic of the present invention, tasteless, sticky not glutinous, the not hydrophilic and water ratio of the mud produced is below 35%, pool wall, the sheet frame of mud in sedimentation filtering pond, and can not stick together or again water-soluble phenomenon in mud discharge line and the pump housing, very convenient and energy-saving and environmental protection of attended operation and up to standard, reduce the maintenance cost of sludge treatment device greatly;
5) parameter configuration adjustment: compared by the effluent quality index request of detection data and setting in advance, calculates and finely tunes the system control parameters (comprising the pH upper-lower door limit value of adjusting process and flocculation process, the dispensing speed etc. of cast feeder) set in advance.Usual integrated artistic configuration parameter needs to be adjusted to best in the actual operation of at least one to two month, need periodic logging influent quality parameter and flow, dispensing speed and the data such as dose, effluent quality parameter every day, and carry out data analysis in time, the adjustment direction of calculating parameter configuration and adjustment amount.Run between stationary phase, parameter adjustment must be prudent especially, usual trim process;
6) current direction is gone out: processed water body is 3-15 minute at the sub-technique flow time of sedimentation filtering, can flow out present invention process afterwards, carry out subsequent disposal, reuse or discharge.
This invented technology can be used as independent sewage disposal core process template and carries out practical application, also can increase flexibly or remove other process matched therewiths, but also self series connection uses, various Sewage treatment systems technique, pre-treatment, end-o f-pipe-control and sludge treatment link can be widely used in, not only ensure the stability of effluent characteristics, reduce comprehensive operation cost, and simply (existing utility and investment can be retained to existing Sewage treatment systems transformation, such as biochemical system), newly-built Sewage treatment systems investment is low, the duration is short, floor space is little, instant effect.As shown in Figure 2, as shown in Figure 3, cascade process application as shown in Figure 4 for the end-o f-pipe-control application mode as a whole in Sewage treatment systems for the pre-treatment application mode of the present invention as a whole in Sewage treatment systems.
The function of the ion isolation medicament that the present invention relates to and the sewage treatment capacity of present invention process and method, for with high-content suspended substance, colourity, turbidity, smell taste and organism, inorganics, the various trade effluents that chemical oxygen demand (COD) (COD) is feature, mud and garbage leachate etc., need according to respective country and industry pollutant emission standard, the water outlet requirements such as enterprise's recycle water standard, take present invention process as core, at leading portion, stage casing or the ripe auxiliary treatment technique of the corresponding industry of backend configuration (such as aeration, acidifying, biological cenobium, active sludge, various pollutent special project removes preparation and filtration, sterilization etc.), and consider two-stage cascade in good time, to meet water body precondition of the present invention, thus reach follow-up sewage treatment process or direct effluent index composite request.
Typical process flow of the present invention is equally applicable to the process producing mud in Sewage treatment systems, as shown in Figure 5.
Special needs to be pointed out is: technique of the present invention is carried out in mobile integrated suite of equipment, described mobile integrated suite of equipment is for the treatment of the mixing of wastewater composition, stirring, input and system set treatment device, comprises the equalizing tank, reaction tank, flocculation basin, the swash plate clarification sedimentation device that are connected successively by pipeline; Wherein the top of swash plate clarification sedimentation device is by the water after discharge of pipes process, and the bottom of swash plate clarification sedimentation device connects mud collecting tank by pipeline.
Wherein, the top of described swash plate clarification sedimentation device is water leg, and bottom is sludge hopper, and be provided with hole bottom described water leg, swash plate is provided with hole, and the angle of swash plate and horizontal plane is 45 ° ~ 65 °.
Special needs to be pointed out is: the ion isolation medicament in the present invention all refers to that number of patent application is the composition of the process waste water related in 201480001546.7.More detailed description about the ion isolation medicament in the present invention can see this patent documentation; The content that this patent documentation describes all is considered as the content that the present invention records.
Advantage of the present invention:
The present invention is the customized technique of the ion isolation medicament for the present invention relates to, utilize this technique can give full play to characteristic and the advantage of medicament, and concise in technology understands, technology stability is good, effective reduction comprehensive operation cost, effluent index is controlled flexibly, high with follow-up sewage treatment process matching degree.
This technique is had a style of one's own, the integrated artistic degree of modularity is high, be convenient to flexible employing, not only can become separately point source and control Sewage treatment systems, and before or after the biochemical process of existing Sewage treatment systems can being added on as pre-processing module, and be applicable to the process of various trade effluent, mud and garbage leachate.
Dispensing in present invention process and method controls to adopt PLC (automaticallyprogrammed control) mode automatically to control, and can also carry out interface and dock, realize centerized fusion with the DCS of sewage treatment mechanism (distributed network system (DNS)).
Accompanying drawing explanation
Fig. 1 is present invention process schema;
Fig. 2 is the schema that the present invention applies as sewage disinfection treatment;
Fig. 3 is the schema that present invention process is applied as sewage end-o f-pipe-control;
Fig. 4 is the schema of application of the manystage cascade connection of the present invention;
Fig. 5 is the schema applied in sludge treatment of the present invention;
Fig. 6 is the structure iron of the mobile integrated suite of equipment of the present invention;
Fig. 7 is swash plate clarification sedimentation device structure iron;
Wherein: in Fig. 6 and Fig. 7,1PH equalizing tank, 2 equalizing tanks, 3 agitators, 4 aeration tanks, 5 reaction tanks, 6 flocculation basins, 7 cast feeders, 8 swash plate clarification sedimentation devices, 9 mud collecting tanks, 10 pressure filter, 11 surge pumps, 12 pipelines, 13 water legs, 14 sludge hoppers, the swash plate of 15 glass reinforced plastic or other materials, 16 sludge outlets.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
The process of embodiment 1-town domestic sewage
Require that index is after the former water of water body and process:
Sewage treatment process of the present invention, process flow sheet as shown in Figure 1, comprises four sub-techniques such as A-adjustment, B-reaction, C-flocculation and D-filtering.For the present embodiment, its sub-technique and each process point flow process, parameter, control and working method step are described below:
A: regulate: the present embodiment water body judges to meet ion isolation pharmacy work condition, and water body does not need to do any auxiliary treatment directly can enter present invention process.Be described in detail as follows:
1) inflow requirement: according to the former water number certificate of the present embodiment, reaction tank and flocculation basin be of a size of the wide X of long X dark=1 meter of X1 rice X1.2 rice, flow velocity is 20 tons per hour; Water body flow time in subsequent reactions and flocculation two sub-process procedures is 3 minutes;
2) water pH value: former water pH value is 7.3, and COD is reduced to 50 from 174 by water body processing requirements, ton water uses ion isolation medicament to estimate at 10 grams, and after process, draining pH value is set as 6.5;
3) molecule degrees of exposure: the molecule degrees of exposure that the present invention gives tacit consent to water inlet should meet ionic adsorption condition, if the molecule degrees of exposure in water body cannot meet ionic adsorption condition, the traditional technology process such as acidifying, aeration, active sludge can be increased before present invention process water inlet, and then enter present invention process;
4) go out current direction: after governing loop completes, treatment sewage order is flowed to the sub-process procedure of follow-up reaction.
B) react: react sub-process procedure and comprise the link such as high-speed stirring, Adding medicine control.Water body needs to control at 3 minutes at this flow time.In usual Practical Project, link is provided with reaction tank for this reason.Be described in detail as follows:
1) water inlet process: book technique water inlet source is regulon technique adjacent before it; Reaction tank is configured with in the present embodiment; The capacity of reaction tank is 1.2 cubic metres, and high speed stirrer motor power is 2-4KW;
2) high-speed stirring: the even high-speed stirring that agitator motor drives agitating vane maintenance per minute 700-950 to turn; After high-speed stirring is formed, can require to offer medicine according to sewage disposal;
3) Adding medicine control: the composition of the ion isolation medicament used in the present embodiment is: percentage ratio by weight, 43.7-46.2% wilkinite; 24.1-25.9% Tai-Ace S 150 (Al
2(SO
4)
3), wherein, Al
2(SO
4)
3particle diameter be 18-74 μm; 19.2-20.8% ceramics powder; 4.8-5.2% chitosan, wherein, the particle diameter of chitosan is 44 μm; With 4.8-5.2% calcium carbonate (CaCO
3) etc.Under the state that water body continues high-speed stirring, directly ion isolation medicament is added in sewage under pressed powder state.Ion isolation medicament usage quantity is 10 grams, sewage per ton, and it is 3 minutes that water body flows through this process time; Dosing speed (Grams Per Second)=ton water chemical feeding quantity (gram) ÷ ton water flow time (second)=10 gram/180 seconds, the description of product according to dispensing controller is set as that uniformly continous is offerd medicine;
4) current direction is gone out: processed water body is 3 minutes at the sub-technique flow time of reaction, enters the sub-technique of flocculation afterwards.
C) flocculate: the sub-process procedure that flocculates comprises two links such as low rate mixing, pH value detection.Water body needs to control at 3 minutes at this flow time.In the present embodiment, link is provided with flocculation basin for this reason.Be described in detail as follows:
1) water inlet process: book technique water inlet source is the sub-technique of reaction adjacent before it; The capacity of flocculation basin is 1.2 cubic metres, and water body flow time is 3 minutes, and the rated output of agitator motor is 0.7-3KW;
2) low rate mixing: adopt the even stirring at low speed that agitator motor driving agitating vane keeps per minute 160-280 to turn; The funnel shape that after water body stirs, stable formation is very shallow; The flocculation process stage does not need dispensing;
3) water pH value detects: pH value detecting sensor detects for flocculation basin water body, and detection probe is positioned at body middle and lower part, pond.According to the slightly acidic of ion isolation pharmacy work mechanism of the present invention and medicine itself, after medicine reacts completely, book operation stage water pH value is between 6.0-9.0, and the present embodiment is 6.5 in this link pH value; If water pH value is higher, it is inadequate that the sub-operation stage of proved response adds medicament, needs the cast feeder controlled in reaction process to increase dosage; Otherwise, reduce dosage;
4) current direction is gone out: processed water body is 3 minutes at the sub-technique flow time of flocculation, enters the sub-technique of filtering sedimentation afterwards.
D) filtering sedimentation: the sub-process procedure of filtering sedimentation comprises sedimentation, filtering water outlet, water quality detection and five links such as the discharge of supporting mud and parameter adjustment.The present embodiment water body controls to be 5 minutes at this flow time, is provided with inclined plate sedimentation formula sedimentation filtering pond.Be described in detail as follows:
1) water inlet process: book technique water inlet source is the sub-technique of flocculation adjacent before it; The capacity 20-30 cubic meter in inclined plate sedimentation pond, swash plate angle is 45-65 degree;
2) filtering water outlet: the mud of generation sinks under gravity, forms supernatant liquor simultaneously, supernatant liquor gets final product water outlet after filtering; Filtering water outlet operation stage does not need dispensing and motor to stir, and directly carries out sedimentation according to physical principle;
3) water quality detection: comprise the crucial water-quality guideline sensor tip required by discharging standards such as pH value detection, COD, ammonia nitrogen, total phosphorus and detect sedimentation filtering pond water body, detection probe is positioned at body middle and upper part, pond.It should be noted that wherein COD index on-line checkingi has about 20-30 minute time delay;
The present embodiment steady running is after one month, and water quality testing data is:
4) mud is discharged: the present embodiment directly from mud mouth mud extraction bottom cone-shaped body, is drawn into sludge plate-frame filter press or other filtering equipments by spoil disposal pipeline sludge pump.Tasteless, sticky not glutinous, the not hydrophilic and water ratio of the mud produced is below 35%, pool wall, the sheet frame of mud in sedimentation filtering pond, and can not stick together or again water-soluble phenomenon in mud discharge line and the pump housing, very convenient and energy-saving and environmental protection of attended operation and up to standard, reduce the maintenance cost of sludge treatment device greatly;
5) parameter configuration adjustment: compared by the effluent quality index request of detection data and setting in advance, calculates and finely tunes the system control parameters (comprising the pH upper-lower door limit value of adjusting process and flocculation process, the dispensing speed etc. of cast feeder) set in advance.In the present embodiment, through debugging in 3 days, integrated artistic started to stablize and meets effluent index requirement;
6) current direction is gone out: processed water body is 5 minutes at the sub-technique flow time of sedimentation filtering, can flow out present invention process afterwards, carry out subsequent disposal, reuse or discharge.The discharge of direct river course is carried out in water outlet in the present embodiment.
Embodiment 2:
Carry out in the mobile integrated suite of equipment that processing step of the present invention can relate at Fig. 6 and Fig. 7.The concrete technology treatment step of mobile integrated suite of equipment is as follows:
(1) reaction effect in order to coordinate ion isolation medicament to reach good, first puts into PH equalizing tank by sewage, adds acid or alkali, water pH value is adjusted to 7.0-9.0, in order to mix, can stir with agitator, the pH value of the sewage that is processed with the difference reached required by technique;
(2) be fully mixing and reaction further, and reach the object interrupting sewage molecular chain or release respective substance, the sewage after equalizing tank and corresponding medicament enter aeration tank;
(3) through the sewage of PH equalizing tank, equalizing tank, aeration tank above, sufficient preparation has been carried out in the reaction for medicament, creates favourable condition for medicament gives full play to the property of medicine; Sewage enters reaction tank through pipeline, drops into corresponding medicament by the cast feeder of the composition for the treatment of waste water simultaneously, fully reacts under the effect of agitator with sewage;
(4) sewage and corresponding medicament are after reaction tank, enter flocculation basin, and flocculation basin is for catching solubility and non-solubility material and visible or non-visible suspended substance;
(5) sewage is after flocculation basin, enter swash plate clarification/sedimentation device, swash plate is the swash plate of glass reinforced plastic or other materials, and swash plate is provided with hole, and the aperture in hole and shape (rectangle or circle etc.) calculate separately according to sewage quality and effluent flow rate.The angle of swash plate and horizontal plane is 45 ° ~ 65 °.Preferably, the angle of swash plate and horizontal plane is 59 °.The top of swash plate clarification sedimentation device is water leg, and bottom is sludge hopper.
Swash plate clarification/sedimentation device, the throw out making the suspended substance in former water, solids or formed after dosing coagulant, thin mud layer is polymerized in swash plate bottom side or set of surfaces, action of gravity is relied on to slide to body refuse suspended layer, then sludge hopper is sunk to, enter sludge sump otherwise processed or comprehensive utilization by shore pipe, supernatant liquor rises to water leg gradually and discharges gradually, can directly discharge or reuse.
Swash plate clarification/sedimentation device, be made according to the precipitation principle of rectangular sedimentation tank removal mark particle, by increasing swash plate in pond, while reducing hydraulic radius, strengthen the wetted perimeter of pond water-carrying section, therefore current are when par flow velocity v, can reduce reynolds number Re greatly, thus minimizing stores stream, promote precipitation.In addition, add swash plate and can also make solids precipitation Distance Shortened, reduce sedimentation time, improve deposition efficiency.
(6) water after the process of swash plate clarification/sedimentation device can be selected again enter aeration tank according to the situation of sewage, the molecular chain do not disconnected completely by sewage or do not discharge material completely and do further process, to reach a perfect condition.Sewage again after the process of aeration tank can finally discharge.
(7) mud enters pressure filter by surge pump after the sludge hopper swash plate clarification/sedimentation device enters mud collecting tank, thus sloughs the moisture in mud.This process can be selected according to the situation of sewage disposal.
Sewage after above-mentioned steps process, can reach the object again utilized, and energy-conserving and environment-protective, whole treating processes is automatical and efficient.
The ion isolation medicament of above-mentioned process waste water is composition, adopts natural biologic material to make, based on ion isolation technology, utilizes charge neutralization mechanism, can to various sewage and trade effluent, and the mud produced in sewage disposal effectively processes.The working mechanism of this product belongs to the suction type in sewage disposal Physical, but functionally can replace the chemical floc used in current industry and the traditional product such as rotary evaporation, ionization and technology completely, and secondary harm is not produced in water body, greatly improve the water ratio producing mud.The composition product speed of response of above-mentioned process waste water is at 3-15 minute, and direct input does not need prior dilution, and content clearance is up to more than 80%; Its moisture percentage in sewage sludge produced is less than 35%, tasteless, does not glue, not hydrophilic; With the matching used mobile integrated suite of equipment floor space of ion isolation medicine series product is little, the engineering construction cycle is short, easy and simple to handle.In general, the use of ion isolation pharmaceutical products in sewage disposal, can not only energy-conservation, economize ground, middle water re-uses, but also the pressure that can alleviate in sewage disposal total system in existing biochemistry and sludge treatment etc., appropriateness promotes the biodegradability of water body, also for capturing the effective way that garbage leachate in sewage treatment industry and the hard nut to crack band such as all types of industries waste water and a large amount of mud solve.
Sewage disposal core process of the present invention is mainly used in the pre-treatment link in sewage disposal total system, thus greatly reduce the pressure of subsequent biochemical and sludge treatment link, fully can ensure the qualified discharge of overall Sewage treatment systems, reduce the domestication of biochemical bacterium simultaneously and cultivate difficulty, also greatly facilitating sludge press filtration; Net effect can promote the overall efficacy of overall Sewage treatment systems, and reduce comprehensive operation cost, strengthen energy-conserving and environment-protective characteristic.
Simultaneously, sewage disposal core process of the present invention also can be applicable to the end-o f-pipe-control link in sewage disposal total system, namely process in the biochemical process water outlet of system, replace a large amount of chemical floc used at present, thus ensure overall effluent index, remove the secondary harm of water body, improve sludge treatment.Water outlet after ion isolation chemicals treatment, directly can carry out Treated sewage reusing or discharge.
Ion isolation medicament of the present invention also can be applied to the sludge treatment link in sewage disposal total system, and after press filtration, moisture percentage in sewage sludge is to less than 20%, removes mud stink.For the mud that sanitary sewage disposal is formed, also can be used for filtering after ion isolation chemicals treatment and burn and farmland fertilization.
Claims (7)
1. a sewage disposal core process, comprises step (1) adjustment, (2) reaction, (3) flocculation, (4) filtering sedimentation, it is characterized in that:
(1), in regulating step, require to be adjusted to pH value 7.0-9.0 according to effluent index; Regulate water inlet flow velocity, guarantee that water body flow time in subsequent reactions and flocculation two sub-process procedures is 3-15 minute;
(2) react: under 700-950 rev/min of high-speed stirring, by medicament delivery controller, according to sewage feature to be processed, the ion isolation medicament of the pressed powder of required input is dropped in water successively, the usage quantity of described water purification agent is sewage 10-300g per ton, and it is 3-15 minute that water body flows through the reaction process time;
Wherein, the composition of ion isolation medicament is: percentage ratio by weight, 43.7-46.2% wilkinite; 24.1-25.9% Tai-Ace S 150 (Al
2(SO
4)
3), wherein, Al
2(SO
4)
3particle diameter be 18-74 μm; 19.2-20.8% ceramics powder; 4.8-5.2% chitosan, wherein, the particle diameter of chitosan is 44 μm; With 4.8-5.2% calcium carbonate (CaCO
3);
(3) flocculate in flocculation basin under the stirring at low speed of 160-280 rev/min; In flocculation basin, detecting pH value, and by controlling (1) step of reaction dosage, controlling pH value at 6.0-9.0;
(4) sedimentation, filtering water outlet, mud discharge is carried out through swash plate clarification sedimentation device.
2. a kind of sewage disposal core process according to claim 1, is characterized in that: in step (4) filtering precipitation step, is required that index contrasts and is carried out small parameter perturbations setting, control effluent quality index by water quality detection with water outlet; Small parameter perturbations is wherein arranged, be the quantity by the ion isolation medicament in the pH value in regulating and controlling (1) step and reaction (2) step and kind, agitator motor rotating speed, the agitator motor rotating speed in flocculation (3) step realizes.
3. a kind of sewage disposal core process according to claim 1, is characterized in that: the water inlet pH value in described step (1) is 3.0-11.0, and after regulating, pH value is 7.0-9.0.
4. a kind of sewage disposal core process according to claim 1, is characterized in that: described medicament is ion isolation medicament, and is solid powder particle.
5. a kind of sewage disposal core process according to claim 1, it is characterized in that: described technique is carried out in mobile integrated suite of equipment, described mobile integrated suite of equipment is for the treatment of the mixing of wastewater composition, stirring, input and system set treatment device, comprises the equalizing tank, reaction tank, flocculation basin, the swash plate clarification sedimentation device that are connected successively by pipeline; Wherein the top of swash plate clarification sedimentation device is by the water after discharge of pipes process, and the bottom of swash plate clarification sedimentation device connects mud collecting tank by pipeline.
6. a kind of sewage disposal core process according to claim 5, it is characterized in that: the top of described swash plate clarification sedimentation device is water leg, and bottom is sludge hopper, is provided with hole bottom described water leg, swash plate is provided with hole, and the angle of swash plate and horizontal plane is 45 ° ~ 65 °.
7. a kind of sewage disposal core process according to claim 1, is characterized in that, described technique adopts programmable logic controller and supervisory control and data aquisition system to carry out automatically and electronically controlled.
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| CN110950497A (en) * | 2019-12-17 | 2020-04-03 | 伟通工业设备（江苏）有限公司 | Intelligent integrated water treatment system and working method thereof |
| CN111072231A (en) * | 2020-01-09 | 2020-04-28 | 伟通工业设备（江苏）有限公司 | Efficient sewage treatment equipment and working method thereof |
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| CN105271571B (en) | 2018-01-23 |
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