One way of life sewage disposal setting device
Technical field
The present invention relates to domestic sewage processing system, this domestic sewage processing system is adapted to the process of the sanitary sewage that the island etc. in the boats and ships of operation on ocean, drilling unit, ocean produce.Refer in particular to the setting device in marine domestic sewage treatment system.
Background technology
Along with the mankind are to preserving the ecological environment, the pay attention to day by day of Control pollution, with on long voyage, the day by day prosperity of offshore oil exploration, scientific research.The process of marine domestic sewage, seems important all the more.And traditional biochemistry/materializing strategy pattern, there is again many drawbacks.Biochemical treatment process generally adopts bacterium to decompose organism in sanitary sewage, and then adds the sterilant such as hypochlorous acid and to carry out disinfection sterilization.The flow process that biochemical process generally adopts is sewage inlet, one-level aeration, two-stage biological contact oxidation, precipitation, sterilization, discharge.Its advantage is that operating charges is low, disposable less investment.Its shortcoming existed is that device volume is large, and sewage type is single, does not have bacterium to dispose of sewage, and needs professional to carry out microbial culture.Device or need not can cause bacterial death for a long time servicing time for a long time, and the rebooting device time is very long again.Physico-chemical process is by carrying out disinfection sterilization to adding disinfectant in sewage, then carrying out solid-liquid separation to sewage and processing.The method shortcoming to store a large amount of disinfectant, and the disinfectant time is long, and drug effect can lose efficacy.
Generally adopt electrolytic process at present, electrolytic process has the advantage of oxidation mechanism and Bactericidal Mechanism.Its oxidation mechanism
,be included in electrolytic process, some metal oxide is oxidized to high-valence state in electrochemical process, then these high-valence state material deoxidation organism.Now high-valence state organism is reduced into the material of original cost state, goes round and begins again like this and reaches the object of oxidation removal pollutent.In electrolytic process, also produce the strong oxidizer deoxidation decomposing organic matter such as oxymuriate, hypochlorite, H2O2 and O3 with strong oxidizing property.The intermediate of short-life, the strong oxidizing property utilizing electrochemical reaction to produce, comprises e(solvated electron), HO, HO2, O2
-deng free radical, they can oxidative degradation pollutent.
Its sterilization mechanism, be included in chlorion and deposit in case, electrolysis can obtain clorox and CLO
-deng strong oxidizer.Played main effect by clorox in whole sterilizing process.For lived bacterium and virus, hypochlorous acid, through cell walls, is oxidized its enzyme system (enzyme is biological catalyst), makes it lose activity, and makes the life of bacterium be subject to obstacle and dead.The hydroxyl radical free radical produced in electrolytic process, oxygen, hydrogen peroxide etc., also have good effect to sterilization.Electric field has the effect of sterilization, and microorganism sharply grows because of electric field action, and result causes its propagating system to occur defect, and fecundity reduces.The seepage force of electric-field enhancing water molecules, makes water molecules very easily through microbial cell film, microorganism or thirsty dead or enter in body extremely swollen because of excessive water because of lack of water.
Sanitary sewage disposal at present on land is all adopt directly to carry out electrolysis to sewage, then flocculation sediment, filtration mostly.A kind of method of processing oil field sewage by electrolysing is disclosed in Chinese patent 200410026589.9.In that patent, by the serial or parallel connection of battery lead plate to oilfield sewage electrolysis, sterilization is carried out.Adopt series, parallel or array mode between its battery lead plate, no matter be series-parallel connection, each battery lead plate all need carry out connection conductive communication by wire.The Method compare of this processing oil field sewage by electrolysing is good, but also there are some problems, all needs wire to connect between each electrolytic pole board, in addition, after the treatment time is long, electrolytic pole board can adsorbs and pile up material after electrolysis, cause the electrolysis ability passivation of electrolytic pole board, reduce electrolytic efficiency; Meanwhile, because anodic-cathodic polar plate spacing is from little, situation about blocking between cathode-anode plate can be caused to occur.In addition, the processing mode of this patent is treatment by stages mode, can not carry out online directly process.
In Chinese patent 201220676384.5, disclose a kind of electricity flocculation Sewage treatment systems, this system forms small granular suspended matters by carrying out electrolysis treatment to sewage, and then precipitated by clarifyling centrifuge, then process after filtration.Electrolytic flocculation device in this patent is also carry out electrolysis treatment to sewage in fact, its Problems existing is identical with the problem of above-mentioned patent, because electrolytic process, electrolytic pole board can adsorb and pile up a large amount of electrolysates, cover electrolytic pole board, reduce electrolytic efficiency, time serious, even cause electrolytic pole board part to block.In addition, all also there is another problem in above-mentioned two patents, and when electrolysis treatment sewage, the large granular impurity contained in sewage when flowing through between electrolytic pole board, can cause damage to electrolytic pole board.
Along with the large-scale popularization of electrolyzer uses, electrolyzer built-in problem also revealing slowly.Traditional plate armature, water stream channel is narrow, easily blocks.Need timing to rinse after often running for some time, and effect is poor.Often need after electrolyzer dismounting, manual strong flushing.The easy passivation of electrode surface, cause electrical loss to increase, electrolytic efficiency is low, and the pole plate life-span is short.
In order to improve the electrolytic efficiency of sanitary sewage, the grain graininess contained by sanitary sewage that best bet is available to electrolyzer is tiny, and good fluidity, not easily precipitates in electrolyzer.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of setting device of marine domestic sewage treatment system, and by the adjustment of this setting device, what the grain graininess in the sanitary sewage collected was become is very little.Through the sanitary sewage of setting device process, its index such as pH value, saltiness is in relatively uniform stable state after mixing regulates, and when the electrolyzer process of its subordinate, not easily deposits, improves electrolytic efficiency and the work-ing life of electrolyzer.
The present invention is for solving the problems of the technologies described above, and the technical scheme provided is one way of life sewage disposal setting device, and buck is communicated with described setting device with the sewage collecting pipeline in Heisui River, and described setting device is communicated with electrolyzer by pipeline; It is characterized in that described setting device comprises equalizing tank, described equalizing tank is chamfer ladder structure, its by riser be cut off into bottom be communicated with chamber one and chamber two; Described side, chamber one top and described sewage collecting pipeline communication; The swash plate all having gap with described chamber about two inner-wall surface is provided with in described chamber two; One macerator pump feed-water end is communicated with by the bottom of pipeline with described equalizing tank, and its water side is communicated with by the top of pipeline with described chamber two; The collecting head of several hollow tubular is provided with in the side of described chamber two, described collecting head is provided with some filter pore, described collecting head is communicated with the water collector being positioned at described equalizing tank outside respectively, and described water collector provides the sewage after filtration by pipeline and transferpump to described electrolyzer.
The air-floating apparatus that can produce aeration is provided with in described chamber one.
The most high liquid level (HLL) place of described chamber one is provided with greasy dirt discharge outlet.
The side that described chamber two is positioned at top bottom described equalizing tank is inclined-plane, and the parallel described inclined-plane of described swash plate is arranged in described chamber two.
Described collecting head is arranged on the described inclined-plane of the oblique below of described swash plate.
The setting device of marine domestic sewage treatment system of the present invention, its structure is simple, realizes particle tinyization of sanitary sewage by means of only physical mechanical effect, and relatively stableization of the index such as PH, saltiness.To ensure that in the sewage being supplied to next stage electrolysis treatment not containing macrobead solid dirt, can not cause the impact of electrolyzer and the depositions settle amount reducing electrolyzer, ensure that sewage is smooth and easy in electrolyzer and flow through.Meanwhile, remove the greasy dirt in sewage, improve electrolytic efficiency and the work-ing life of electrolyzer.The collecting head of equalizing tank of the present invention is with filter pore, and it has backwashing function.When after use for some time, the filter pore of collecting head may be blocked by macrobead, as required, can separately carry out to collecting head the macrobead that back flushing rinses out blocking.During other collecting heads of back flushing, the collecting head be not backwashed can work on, and influential system does not use.
Accompanying drawing explanation
Fig. 1, the setting device structural representation of marine domestic sewage treatment system.
Embodiment
For technical scheme of the present invention, be now specifically described in conjunction with diagram.Referring to Fig. 1, the setting device of marine domestic sewage treatment system of the present invention mainly comprises equalizing tank 1, wherein.
Equalizing tank 1, it is that upper part volume is large, the accommodation pond of the chamfer ladder structure that lower part volume is little.In the present embodiment, one of its upper part and lower part is connected side is prism.In equalizing tank 1, be provided with vertical riser 11 from top to bottom equalizing tank 1 partition is divided into chamber 1 and chamber 23.The lower end of riser 11 is positioned at top bottom equalizing tank, and do not touch bottom, therefore, chamber one is communicated with bottom equalizing tank with chamber two.The inner upper lateral part of chamber 1 is provided with sewage inlet 21, and sewage inlet 21 and the sewage collecting pipeline communication collecting buck and Heisui River, input sewage in the chamber one of equalizing tank.Opposite side top in chamber one is provided with greasy dirt discharge outlet 22, and the greasy dirt swum on chamber one liquid level is disposed to outside equalizing tank by greasy dirt discharge outlet and carries out greasy dirt recycling.In chamber one, bottom is provided with air supporting 23, and air supporting 23 can produce a large amount of extremely small bubble, adheres to the oily matter of hydrophobic group in sewage, under the effect of buoyancy, rises to liquid level.Greasy dirt in liquid can not be entered bottom equalizing tank with in chamber two.Air supporting carries out the adjustment of air supporting aeration rate by air supporting setting device 24.The floating greasy dirt converged on liquid level is then emitted by greasy dirt discharge outlet, and a large amount of greasy dirts avoided in sewage enter next stage electrolysis treatment step.In chamber 23, be provided with a swash plate 31, swash plate 31 is fixed on the both sides sidewall of chamber two.Equalizing tank top is not touched in swash plate 31 upper end, and lower end is not touched bottom equalizing tank, and the liquid in chamber 2 can flow through swash plate top and bottom.Swash plate 31 lower end is positioned at top bottom equalizing tank.After in sewage in chamber two, macrobead touches swash plate, can bottom swash plate downward landing to equalizing tank.Equalizing tank bottom outer is provided with macerator pump 4, and the inlet end of macerator pump 4 is communicated with bottom equalizing tank by pipeline; The water outlet end of macerator pump 4 is communicated with by the top of pipeline with the chamber two of equalizing tank.The pipeline be communicated with the water outlet end of macerator pump extends to above swash plate 31 in chamber two.In the throw out sunk to the bottom bottom equalizing tank and sewage, macrobead is entered in macerator pump by pipeline and pulverizes, and after pulverizing, sewage flow in chamber two through back of pipeline again.When macrobead in the sewage of backflow precipitates touching downwards to swash plate, then again pulverize backflow bottom along swash plate landing to equalizing tank; Small-particle in sewage then flows through swash plate by turning over above and below swash plate.In the oblique below of swash plate, on the scarp of chamber two side, be provided with several collecting head 32.Collecting head 32 is hollow tubular structure, and hollow tube wall offers several filter pore.Have water collector 5 in the outer setting of equalizing tank, collecting head 32 is each passed through equalizing tank sidewall and is connected with water collector 5.Sewage in equalizing tank enters in water collector after the filter pore of collecting head is filtered.Water collector 5 is communicated with electrolyzer (not shown) by pipeline.The pipeline that water collector is communicated with electrolyzer is provided with transferpump 6, provides power by transferpump, the sewage transport that water collector is collected is carried out electrolysis to electrolyzer.Small-particle in chamber two after pulverizing is blended in sewage, and the filter pore on collecting head enters in water collector, and is delivered into electrolysis in electrolyzer by transferpump; Macrobead due to the existence of the filter pore on collecting head, is then stopped in equalizing tank, waits for being pulverized by macerator pump again.So, oily waste degradation in chamber one and macerator pump are to the pulverizing of macrobead dirt, and swash plate helps macrobead to be precipitated at the bottom of equalizing tank pond in chamber two, macrobead is stoped to be gathered in the effect of the head end that catchments, the filteration of collecting head in addition, the grain graininess entered in the sewage in electrolyzer is diminished, ensure the smooth outflow of sewage in electrolyzer, avoid impact that macrobead causes electrolyzer and easy blocking characteristic, reduce the deposition of electrolyzer, improve the work-ing life of electrolytic efficiency and electrolyzer.The floating ball type liquid-level meter detecting two position is also provided with in equalizing tank.Collecting head has backwashing function.When after use for some time, macrobead likely blocks the filter pore on collecting head.Because collecting head and water collector are for be communicated with respectively.Therefore, after operation for some time, according to PLC time variable control, back flushing is one by one carried out to collecting head.When flushing one group of collecting head, then this group collecting head does not work, and several groups of collecting heads proceed operation of catchmenting in addition.By carrying out reverse air inlet stripping to water collector, the macrobead be blocked on collecting head being rinsed and being separated from collecting head, ensure that catchmenting of collecting head is unimpeded.In order to accomplish this point, in the present invention, the program control water collector of employing, it can carry out regular back flushing according to PLC time variable control to collecting head, prevents blocking.