CN1084497A

CN1084497A - The refining plant of high concentration organic sewage and method thereof

Info

Publication number: CN1084497A
Application number: CN93117089A
Authority: CN
Inventors: 朴炯仁
Original assignee: Heung Yang Dev Co ltd
Current assignee: Heung Yang Dev Co ltd
Priority date: 1992-09-01
Filing date: 1993-09-01
Publication date: 1994-03-30
Anticipated expiration: 2013-09-01
Also published as: CN1097564C

Abstract

The present invention is the refining plant and the method thereof of relevant high concentration organic sewage, promptly by the impurity of removing in the organic sewage, makes the pre-treatment engineering of liquid homogenization; In the turbid solution of nascent corrosive deposit, drop into the pretreated high concentration organic sewage of a certain amount of process, make the nascent corrosion treatment project of liquid corrosionization; The inherent index that the nascent corrosionization of expression is over is judged as when being over, just be transplanted on tempering tank and adjust pH, drop into a spot of inorganic condensing dose and carry out the condensing treatment project of the nascent corrosive deposit of high liquid separation and the aftertreatment engineering formation of producing ripe compost and purifying waste water.

Description

The refining plant of high concentration organic sewage and method thereof

The present invention relates to a kind of refining plant and method thereof of high concentration organic sewage, specifically liquid corrosionization such as the fecaluria that accounts for the very most people of environomental pollution source, domestic animal etc. and the organic sewage of industrial waste and other high density, after solid and the liquid separation, liquid portion purifies to being fit to purifying waste water of water examination standard, other solids mass-energy is as the high-quality fertilizer material, that is to say, can be the high concentration organic sewage refining plant and the method thereof of above various wastes purifications.

The treatment process of high density organic sewages such as the fecaluria in past has conventional actived sludge or it is partly become the method for usefulness.For example, referring to the fecaluria treatment project according to the past activated sludge process shown in Figure 180, put into retention basin after removing various impurity in the excrement and urine waste of regaining, liquid state is homogenized, the dilution water adding that 10-20 doubly measures is diluted in pretreated excrement and urine waste, it is sent to quick-fried air drain (a), (b) sends into air by fan, excrement and urine waste relies on aerobic bacteria group's (active sludge) action activityization, organic oxidized decomposition, from change, then it is sent to settling bath (c) and leaves standstill certain hour, the natural sedimentation of solid excrement, at this moment rise water on isolating and release after sterilization, throw out buries after concentrating or burns but and handle.

But, such method is to add a large amount of dilution waters to handle in organic sewage, there is not the place at water source to be difficult to implement, and because the capacity increase of the whole sewage of the interpolation of dilution water, make hugeization of facility of quick-fried air drain, settling bath etc., the expenditure on power that needs for draw water, quick-fried gas etc. increases, therefore the problem that exists overheads and operational cost to increase.

And exist in and keep the technology that needs high degree of skill in the management, the branch not exclusively handled of releasing is dried up and sewage resource, is difficult to guarantee the water source and the dewatered solid excrement buried and burns but problems such as place.

The present invention considers and as above passes by all problems and find out, in the treating processes of organic sewages such as fecaluria, do not use dilution water, so that handle the simplification and simple littleization of all facilities, reducing facility, handle and when needing funds, so that solid and liquid separation obtain to be fit to purifying waste water of water quality standard completely.Below with reference to accompanying drawings it is elaborated.

Fig. 1 is a schema of the present invention.

Fig. 2 is the partial cross section figure of the formation of the expression embodiment of the invention.

Fig. 3 is that the notch portion oblique drawing is regulated in the pressurization of Fig. 2.

Fig. 4 is the partial cross section figure of the formation of expression second embodiment of the invention.

Fig. 5 is the integrant disk of Fig. 4 and the part oblique drawing of circular filter.

Fig. 6 is the front elevation of the filter state of installation plan 5.

Fig. 7 is the side elevational view of the filter state of installation plan 5.

Fig. 8 is the floating waist partial view of going up separation means of the air pressure of third embodiment of the invention.

Fig. 9 is the illustration figure that removes the nitrogen time sequence of expression third embodiment of the invention.

Figure 10 is the BOD sketch map by the time variation of expression fourth embodiment of the invention.

Figure 11 is the engineering sketch map of expression sixth embodiment of the invention.

Figure 12 is the oblique drawing of the dehydration barrel outward appearance of expression seventh embodiment of the invention.

Figure 13 is the A-A line sectional view of Figure 12.

Figure 14 is the B-B line sectional view of Figure 12.

(first) of Figure 15, (second), (third) are the side cross-sectional view of various embodiment of the dehydration barrel constituting body-rod of illustration seventh embodiment of the invention.

Figure 16 is that expression is applicable to that the impurity dewatering unit of seventh embodiment of the invention constitutes the side sketch map of state.

Figure 17 is the sketch map of expression eighth embodiment of the invention treating processes.

The 18th is human excrement waste water treatment engineering figure in the past.

The schema of the present invention such as Fig. 1 can divide four-stage.Fs is the impurity of removing in organic sewage, the pre-treatment engineering that liquid state is homogenized; Subordinate phase is to drop into the quick-fried gas of certain amount of pre-treated high concentration organic sewage in the turbid solution of the liquid corrosive deposit that causes in advance, carry out the liquid state corrosionization of organic sewage, organism in the organic sewage is by BOD oxidation bacterium picked-up, by oxygen give birth to (thing) chemically the oxidation organism that becomes the oxidising process of carbonic acid gas (CO2) and water and the energy intake that at this moment utilization obtains be converted into the liquid state corrosionization treatment project that the assimilation of thalline is carried out simultaneously with the living precursor reactant of microorganism; Phase III is to be judged to be when being over according to the intrinsic index that the liquid corrosionization of expression is over, and just sends it to tempering tank, according to circumstances adjusts to drop into the quantitative inorganic agglutinant of institute behind the PH and carry out the aggegation processing of solid and liquid separation and the engineering of dewatering; The quadravalence section is the aftertreatment engineering that raising is produced ripe compost with the degree of corrosion of the dehydration piece of water extracter dehydration.Be elaborated below by embodiment:

Fs of the present invention is the pre-treatment engineering, and tool is engaged in removing the devices such as impurity that contain in order to separate in high density organic sewages such as fecaluria fully.

Embodiment one:

As shown in Fig. 2 and Fig. 3, the top of body 1 is arranged to have installed on a turning axle 2 and is connect the impurity separating device A that a lot of screen plates 3 form.Its underpart is the transmission propeller of installing in tube 5, its axially be provided with and by the motivating force of engine according to certain r.p.m(rotation number) during rotation, for the impurity pressurization device for discharging fixed arrangement that makes the impurity pressurization transmission that is dropped into by above impurity separating device A separation the general impurity that forms being installed removes on the machine, the distal portion that constitutes the transmission propeller 5 of impurity pressurization device for discharging fixed connects tube 4 and body 1, when expose by suitable distance its outside portion, on the axle 5a of transmission propeller 5 terminal part, form in conjunction with the 5b of screw portion, when on the both side ends flange 6b being set jointly, the formation of one side internal diameter is littler than other, the conical tube 6 that tilts by suitable angle forms separately, assemble on tube 4 one ends of body 1 one side the inners the position, in conjunction with.Therefore, make the extending part that transmits propeller 5 be positioned at the axial region position of conical tube 6, skewed slot 7 at the cylinder that flange 7a is arranged in conjunction with a side on the conical tube 6 is installed, and interconnects at the tube 4 of body 1 inboard and conical tube 6 and skewed slot 7, makes the distal portion of skewed slot 7 form discharge opening 7b.

And, conical pressurization part 8a with external diameter more smaller than the small-bore position of conical tube 6 one sides forms in a side, when an other side prolongs formation instrument joint portion 8b, other formation with the pressurization of screw hole 8c perforation formation regulated mouth 8 at interior axle center, can move in the status level of compressing by the impurity of above transmission propeller 5 transmission on it constitutes.Undeclared and symbol respectively is expressed as: 8b is a fixed screw holes, the 9th, and axle center part, the 10th, impurity induced plate.

In the embodiment of the invention that as above constitutes, form in conjunction with the 5b of screw portion on axle 5a one end of the transmission propeller 5 of dependence engine rotation, directly assembling fixed pressurization regulate mouthfuls 8, its other side is the simple structure change that conical tube 6 and skewed slot 7 are assembled in order, not only realize the pressurization of impurity, and make moving horizontally of impurity become possibility.Consider that the impurity separating device A by position, position, top separates the impurity levels that drop into to tube 4 inboards, the bonded pressurization on transmission propeller 5 of the state of the inner side of pressing conical tube 6 is regulated the position of mouth 8, tool area that the impurity that transmits is passed through is is suitably added and subtracted after the adjusting by hand, and running engine carries out the transmission effect of impurity by transmission propeller 5.Put into the impurity of tube in 4 thereupon and be pressurized adjustings mouthfuls 8 by compressed state pressurization transmission, remove most moisture after, conical tube 6 and skewed slot 7 process in order, flow out by discharge opening 7b.Can remove the impurity of high concentration organic sewage with above device.

And, as above extremely shown in Figure 7 as Fig. 4 for the other embodiment two that separates, removes the impurity that contains in the high concentration organic sewage, when a side-lower of body 11 inside was installed tube 12 and transmitted the impurity pressurization transport unit B of portion of propeller 13 formation, the input port 12a that connects tube 12 installed trash flow entering plate 14.When trash flow inlet 15 and waste stream entering plate 16 are installed in opposite side top, it as above between waste stream entering plate 16 and the trash flow entering plate 14 turning axle 17 that relies on other engine rotation, connect on it impurity separating device that most disk filters constitute is installed, arranging the general impurity of installation formation removes on the machine, as connecting disk filter 18 peripheries of installing on the turning axle 17 of the main composition body of impurity separating device C along last outstanding most rake shape groove 18a that forms, on turning axle 17, fixedly mount the circular filter 21 on the circular arc of the inner peripheral surface of the rake shape groove 18a rotation radius consistent state of the disk filter 18 of rotation by connecting rod 19 and retaining plate 20.The following quadrate part of disk filter 18 and a side central part face the state that connects and arrange installation.But the length of circular filter 21 is than long at the spatial portion h that forms between outstanding rake shape 18a that forms and the rake shape groove 18a on the disk filter 18, and circular filter 21 upper ends will be installed in the terminal part of waste stream entering plate 16 simultaneously.In addition on the one hand, connect each circular filter 21 of installing by appropriate intervals and be installed in and connect on the turning axle 17 between each disk filter 18 of installing on the position by connecting rod 19.Undeclared symbol respectively is expressed as: the 22nd, and water-jet exhauster, the 23rd, form at interval and use gasket part, the 24th, connect excellent combined hole, the 25th, axle center, the 26th, outlet orifice.

The impurity separating device of the embodiment of the invention that forms by such structure is the disk body of same diameter, when forming disk filter 18 and circular filter 21 respectively, when interosculating by connecting rod 19, the spatial portion that forms between each strainer is the impurity size of having considered as sorting object, sets manufacturing with connecting rod arbitrarily in conjunction with pad 23 projecting heights in ball 24 outsides.Space between disk filter of connect installing on the turning axle 17 18 and side is installed below it circular filter 21 is that the strainer that forms by pad 23 and the spatial portion between the strainer are with interior setting, disk filter 18 is avoided interfering mutually with circular filter 21 when rotary operation.

Under such state, motivating force is conveyed to turning axle 17, when making disk filter 18 beginning rotary operations, flow into as the waste that purifies object by waste stream inlet 15, waste is down to transmit along waste stream entering plate 16, after flowing between circular filter 21 and the disk filter 18, the spatial portion that liquid object is passed through to form between each disk filter 18 and the circular filter 21 is under body 11 below clans, the state that the impurity of solid shape such as wood chip or fibre plate is passed through the circular-arc side of keeping down, circular filter 21 inboard, at this moment some among the obstacle groove 18a of the disk filter 18 by rotary operation on the inboard of circular filter 21, impurity in the passing is blocked upwards by rake shape groove 18a and transmits, and such state carries out repeatedly.It is because the total length of the circular filter 21 of circular arc realizes than the spatial portion h length that forms between outstanding rake shape groove 18a that forms and the rake shape groove 18a on the disk filter 18 that such impurity upwards transmits.

By as above process, the impurity that drops into is blocked after the upwards transmission by rake shape groove 18a, promptly a rake shape groove 18a is by after the upper end of circular filter 21, form a quite wide waste between disk filter 18 and the circular filter 21 and flow into the space, the inflow of waste can be carried out smoothly, adulterated solid impurity is blocked upwards at the rake shape groove 18a of circular filter 21 lower portion and is transferred in the waste that constantly flows into

By such repetitive process, the impurity that is blocked transmission by rake shape groove 18a rake shape groove 18a by above water-jet exhauster 22 below process in injected water sepn, fall; Flow into input port 12a by trash flow entering plate 14, after the dehydration, get rid of by outlet when transmitting by the impurity pressurization transport unit B of the portion pressurization of carrying out means as next engineering, said process is implemented repeatedly, so carries out a series of impurity and removes process.

As above remove the impurity of fs pre-treatment engineering, high concentration organic sewage after the fs, impurity was removed is stored in the retention basin, after liquid state is homogenized, be transplanted on the liquid state corrosionization treatment project of subordinate phase, carry out the processing of liquid state corrosionization here, nitrogen in the high concentration organic sewage that use is undertaken by the liquid state corrosionization is removed method, high concentration organic sewage is suitably supplied with the method for liquid etching tank etc., and embodiment is as follows:

Embodiment three:

In liquid state corrosionization treating processes, it is as follows that the nitrogen of high concentration organic sewage is removed method:

Present embodiment three is liquid state corrosionization processes of implementing subordinate phase, and the interior aerobic condition of liquid etching tank and anaerobism condition are carried out batch-type (grey fraction) processing according to the period planning table of Fig. 9, removes nitrogen in the organic sewage according to biological method.

And the BOD-MLSS load of liquid etching tank is below the 0.1kg DOG/kgMLSS.d, and the BOD volumetric loading is 0.8kg BOD/m ²D is following for more suitable, and liquid etching tank is more more satisfactory than original twice.In liquid etching tank, the timer that can supply repeatedly or stop by the time planning chart is installed in gas blower, and amount of supplied air adopts the equipment with the above air deliverability of 3m/mhr.

Particularly, when stopping using gas blower to create the anaerobism condition,, be necessary that stirrer is installed in the liquid etching tank in the water for stirring at leisure in the liquid etching tank.And in order to increase the efficient except that denitrification, tripping device transmits thickened sludge on installation pressurization between liquid etching tank and the tempering tank is floating, and the sludge concentration that improves in the liquid etching tank also is worth.

The floating tripping device of going up of pressurization is that the excessive air of dissolving is made pressurized water in a part for the treatment of water, illustrating on this pressurized water such as Fig. 8, is sent to the floating separator tank of going up.In normal atmosphere, reduce pressure, produce a large amount of micro-bubbles (50-100 μ degree) in the water, in this micro-bubble, adhere to the mud particle, according to the buoyancy of bubble mud is kept afloat and carry out separating of solid and liquid, be the effective ways of thickened sludge therefore.

In such etching tank, be described in detail as follows according to the process of denitrogenating as the period planning table of Fig. 9:

First engineering:

Organic nitrogen that comprises in the high density organic sewages such as fecaluria and ammonium-nitrogen element (NH2-N) react by biology ground under the aerobic condition, are oxidized to nitrite nitrogen (NO ₁-N) or nitrate ammonia (NO ₃-N).At this moment the reaction times that needs is about 16 hours.

By the gas blower of installing in the liquid etching tank, oxygen supply 3m ³/ m ³The above aerobic condition of making of hr.At this moment high concentration organic sewage is finished liquid corrosionization by the oxidising process of oxidation operation with the assimilation that the living precursor reactant of microorganism is converted into thalline.

In the process of liquid state corrosionization, the reaction formula of nitrogen is as follows:

Biooxidation reactions according to nitro-body (NITRO SOMONAS):

Biooxidation reactions according to nitro bacterium (NITRO.BACTOR):

As follows above arrangement:

Second engineering

Fully bred the nitrification bacterium in the liquid corrosive fluid in liquid etching tank, BOD oxidation bacterium and denitrifier, stop the quick-fried gas of first engineering, under the anaerobism condition by water in stirrer liquid corrosive fluid is slowly stirred, oxidation state nitrogen in the liquid is the effect according to denitrogenation, is reduced to nitrogen oxide (N ₂O) or nitrogen (N ₂) in atmosphere, diffuse, thereby reach and denitrogenate purpose.

Here nitrous acid nitrogen (NO ₂-N) or nitrate ammonia (NO ₃-N) be reduced into nitrogen (N ₂) denitrifier also be heterotrophic organism (Heterotrophic Bacteria) when being same sex anaerobism bacterium, such denitrogenation is for nitrous acid nitrogen (NO ₃-N) and/or nitrous acid nitrogen (NO ₂-N) reduction is indispensable as the total body organic carbon of the hydrogen of the energy.But do not add other organic carbon source in second engineering of the embodiment of the invention, utilization remains in the denitrogenation of the BOD in the liquid corrosive fluid and carries out simultaneously by the interior denitrogenation of giving birth to breathing of microorganism, make to reach the following nitrogen concentration of target benchmark value after denitrogenating, it is sent to the tempering tank of next engineering.At this moment, concentrated a part that transmits in the liquid by the floating tripping device etc. gone up of pressurization, thickened sludge is returned liquid etching tank, can remove out the nitrogen in liquid etching tank effectively.The reaction formula of denitrification process is as follows:

The biological reducing of nitrous acid nitrogen:

The biological reducing reaction of nitrate nitrogen:

The 3rd engineering:

After second engineering is carried out denitrogenation processing, the treating water that is equivalent to one day usage quantity is discharged toward the tempering tank transmission of next engineering, identical with output, through the sewage input of preprocessing process, stirrer slowly stirred six hours in the water under the anaerobism condition.By the organic carbon (hydrogen has body) in the new organic sewage that drops into, nitrogen remaining nitrous acid nitrogen (NO from liquid ₂-N) or nitrate nitrogen (NO ₃-be removed in N), and a part of BOD in the organic sewage also is removed.

Reaction formula be with second engineering in narrate the same.

Engineering is as above continued circulation, but in order to carry out with one day is the trial trip of unit, though along with the organic sewage condition as object is different and variant, be exemplified as: first engineering needs 16 hours approximately under the situation of handler's fecaluria, second engineering needs 2 hours approximately, the 3rd engineering needed handle approximately in 6 hours, can handle the nitrogen in the organic sewage continuously, treated organic sewage is sent to tempering tank and carries out processes such as solids such as aggegation processing and liquid separation operation, obtain the water of releasing that nitrogen is removed, it is released.

At this moment, automatically perform each engineering, can adhere to general timer on the air supply device gas blower in liquid etching tank in order to fix time by the period planning table of Fig. 9.

As above explanation is the same, and batch-wise biology is denitrogenated method in the embodiment of the invention, has following feature and advantage.

(1) because the reaction process in the liquid etching tank is identical with ideal discrepancy flow process (plugflow), biogenic migration is carried out smoothly, the treatment effect height, and when the supply air, save expenditure on power.

(2) in continous way each reactive tank must be set in addition, but in the embodiment of the invention, denitrogenation be reached in single groove, so the equipment formation is simple, installation cost and running management take cheap.

(3) make and stop in the inherent liquid etching tank of organic sewage certain hour of inflow and make it to react, therefore the load change that is not flowed into quantity, water quality etc. influences, needn't establish the Flow-rate adjustment groove, the volume of liquid etching tank can be littler than continous way, and do not have the interpolation in methyl alcohol organic carbon sources such as (Methanl) also can denitrogenate processing.

According to embodiment as above, after finishing the liquid state corrosionization treatment project of subordinate phase, carrying out the aggegation of the liquid corrosive deposit of subordinate phase handles, at this moment measure the degree of purification of organic sewage, add the inorganic agglutinant (ferrous chloride) of appropriate amount and force separate solid and liquid, as follows to this embodiment:

Embodiment four

Degree of purification measuring method in the liquid corrosive deposit aggegation treatment project of phase III:

The degree of purification measuring method of the embodiment of the invention is the nitrous acid nitrogen (NO that takes place in the aerobic scavenging process with the high density organic sewage ₂) and nitrate nitrogen (NO ₃) measure degree of purification as the index that purifies, make the operational administrative of purification facility easy.The water quality benchmark suitability situation of the water of releasing after the degree of purification of treatment solution in the liquid etching tank of organic sewage and solid and the liquid separation, can monitor, hold by the biological oxygen demand of measuring oxidation state nitrogen, only releasing meets the treating water of the water prescribed value of releasing, and can carry out running management easily.Be described in detail as follows:

In the ordinary course of things, the organic nitrogen of cause is decomposed into ammonium-nitrogen in the protein in the organic sewage, with the ammonium-nitrogen that originally just is present in the organic sewage, further oxidation under aerobic condition, be oxidized to the oxidation state nitrogen of nitrous acid nitrogen and nitrate nitrogen etc., as follows with chemical formulation it:

But, above-mentioned reaction be with Figure 10 on represent the same, in the fs, mainly carry out the oxidation (BOD successively decreases) of carbon element compound, carried out the oxidation of nitrogen compound in 7-10 days later on.In other words, when oxidation state nitrogen occurred, the oxidation of most of carbon element compound finished, and meaned that organic sewage purifies.Therefore, it is seen conversely, according to nitrous acid nitrogen (NO ₂) or nitrate nitrogen (NO ₃) appearance whether can judge degree of purification.

Handler's fecaluria measured value is observed as follows:

If check out nitrous acid nitrogen, the BOD value of liquid etching tank treatment solution is below the 2000mg/l, and at this moment the BOD value of the water of releasing of solid and liquid separation is below the 30mg/l.If do not check out nitrous acid nitrogen, the BOD value of liquid etching tank treatment solution is more than the 2000mg/l, and at this moment the BOD value of the water of releasing of solid and liquid separation is more than the 30mg/l.

The measuring method of oxidation state nitrogen is:

(1) nitrous acid electron ion qualitative test method.

(2) the qualitative test paper method for measuring of use nitrous acid nitrogen and nitrate nitrogen.

(3) use can be checked out to moment, but use nitrous acid electron ion qualitative test method to measure in embodiments of the present invention according to the method for the tester use of electron ion electrode method.

Nitrous acid electron ion qualitative test method:

Reagent

A medicine: sulfanilamide (SN) (Sulfanilic Acid:NH ₂C ₆H ₄SO ₃H) 1g is dissolved in 30% acetic acid (Acetic acid:CH ₃COOH) in the 100ml, in brown bottle, preserve.

B medicine: naphthalene ammonia (a-Naphthylamine:C ₁₀H ₇NH ₂) 30mg is dissolved in the distilled water of 70ml.Its boiled postcooling, add the Glacial acetic acid (99% Acetic Acid) of 30ml.

Test method:

In orange plate, put 2-3 and drip the organic sewage treatment solution-liquid corrosive fluid or the water of releasing, A medicine or B medicine are respectively added one.If can confirm red orange reaction, have the nitrous acid electron ion exactly.

Test-results:

If can confirm red orange reaction, there is the nitrous acid electron ion exactly, therefore can confirm that in a flash the BOD of Huaihe River attitude etching tank treatment solution is below the 2000mg/l, the BOD of the water of releasing of solid and liquid separation is below the 30mg/l, can monitor the water quality of the degree of purification or the water of releasing really.On the one hand, under the situation of using electron ion electrode method, can monitor continuously at ordinary times, also can constitute the system that the water of releasing to against regulation value gives the alarm, can monitor and continuously release.

And the diminishing method of expression usage quantity mixes with ferrous chloride hydrochloric acid by suitable proportion in the liquid etch of embodiments of the invention five, makes it to carry out aggegation and handles.Carry out the usage quantity that ferrous chloride was handled and significantly reduced in good aggegation with this, reduce the labour cost that takes place in processing funds and all engineerings thereupon, significantly reduce the environmental pollution that causes by the heavy metal class.It is described in detail below:

Embodiment five

The usage quantity diminishing method of ferrous chloride in the aggegation treatment project of liquid corrosive deposit:

1) investigational agent category

(1) ferrous chloride

(2) hydrochloric acid

(3) reagent class

2) measure apparatus for conducting assay such as analytical implement class and SS, agglutination test device.

3) agglutinant, the adjustment of reagent

(1) ferrous chloride, hydrochloric acid mixed solution

Ferrous chloride 32% and stoste (35%) concentrated hydrochloric acid is pressed V/V, adjusts its blending ratio by 10% interval.

(2) COD, it is according to water pollution waste test method that basicity is measured the reagent inflation method.

Test method

1) adjustment of liquid corrosive fluid

The liquid corrosive fluid of taking is purified by quick-fried gas, and ferrous chloride (Ferric chloride)-hydrochloric acid mixed solution that it is adjusted in proportion carries out agglutination test.And the proterties of the liquid corrosive fluid that provides to agglutination test is to be determined as follows (table 1) P, the M basicity, and the H basicity, SS, VSS, COD(measuring method are according to water drain test method etc.; The H basicity is the sour consumption that PH reached 4.2 o'clock)

2) agglutination test

Drop into the test portion (liquid corrosive fluid) of 500ml on (1) 11 the beaker.

(2) with stirrer above-mentioned test portion is stirred, ferrous chloride (Ferric chloride)-hydrochloric acid mixed solution of adjusting according to various ratios utilizes drop-burette (Burette) input, and PH is adjusted into 4.2, reads its addition (form)

(3) filter

Filter (according to circumstances adopting the centrifugation mode) with filter paper.

(4) measure COD after the off-test

The result that table 2 and table 3 expression are carried out liquid corrosive fluid agglutination test according to method as above.

Table 1

The proterties of liquid corrosive fluid

Table 2

The agglutination test result

Table 3) ferrous chloride in ferrous chloride-hydrochloric acid mixed solution contains ratio and the relation that breaks away from liquid CODmn

As above-mentioned embodiment and as a result in the table the expression, for separating of the aggegation of carrying out liquid corrosive fluid effectively and solid and liquid, utilizing ferrous chloride to contain ratio under these conditions is that 50% ferrous chloride and hydrochloric acid mixed solution are better.As table 2) the COD amount was also many when the mixture ratio of hydrochloric acid was many, substantially exceeded the COD amount (about about 120) that is fit to release, and became the state that does not meet the water quality standard value of releasing.Conversely, if when the mixture ratio of ferrous chloride is many, heavy metal content is many in the ferrous chloride, therefore has the problem that consumes a lot of processing costss.

Therefore, the problem in order to exist before overcoming significantly reduces heavy metal content, makes the water water quality conformance with standard of releasing, and the mixture ratio of ferrous chloride is 40-80%, and hydrochloric acid is that 60-20% is comparatively suitable.The optimum mixture ratio rate is that ferrous chloride is 50%, and hydrochloric acid is 50%.

Adjust in the embodiment of the invention as above the mixture ratio of ferrous chloride and hydrochloric acid probably being mixed by about 50%: 50% ratio, make the aggegation of liquid corrosive fluid and solid and liquid separate effectively the time row.And the content of heavy metal in the ferrous chloride that successively decreased greatly makes it to release smoothly.Therefore have and to save features such as a lot of processing costss and labour cost.

In addition, embodiments of the invention six are to force isolating method about organic sewage solid and liquid in the aggegation treatment project of the nascent corrosive deposit of phase III.In the processing of high concentration organic sewage, the quick-fried air drain that liquid etching tank replaces activated sludge process is installed, cause in the early stage in the turbid solution of liquid corrosive fluid, the 10-20% that appends turbid solution again carries out quick-fried gas, the liquid corrosionization of organic sewage, check out nitrous acid nitrogen or at the molten oxygen (DO) of depositing approximately when 1PPM is changed to 5PPM, liquid state corrosion turbid solution is sent to after the agglutination reaction groove carries out aggegation and handle, with water extracter solid and liquid separation, the dewatered sludge block transfer is to the composting engineering, break away from liquid and deliver to the engineering of releasing, can carry out the solid and the liquid separation of organic sewage at short notice with simpler equipment.

Below the embodiment of the invention six is elaborated by Figure 11.

1) pre-treatment of organic sewage

Remove the impurity in the organic sewage of withdrawal, temporarily in the sewage retention basin, store, liquid state is become homogenize.(identical) with former method.

2) liquid corrosion

In the liquid etching tank that possesses quick-fried device of air etc., cause the turbid solution of liquid corrosive deposit in advance.

The turbid solution of liquid corrosive fluid is the protein in the organic sewage by microorganism, the aqueous solution that carbohydrate etc. decompose and resynthesis generates, organic sewage had very strong detergent power, only also can cause turbid solution gradually at itself with organic sewage, if condition permission, drop into whole rose of Sharon parts of kind of mud from the outside, in the shorter time, cause turbid solution.

The turbid solution of liquid corrosive deposit causes 50% o'clock of liquid etching tank useful capacity, and the organic sewage about turbid solution 10-20% is flowed into from retention basin, utilizes quick-fried gas such as quick-fried institute device to make liquid corrosionization.

Whether liquid corrosionization finishes is according to checking that nitrite nitrogen or the molten oxygen (DO) of depositing increase to 5PPM from 1PPM and judges.

3) agglutination reaction

Ferrous chloride and organic polymer agglutinant and usefulness are whole aggegation manipulation of carrying out of liquid corrosionization.

Ferrous chloride is general to drop into 2,000-4,000PPM, when putting into PH and reaching 4-5 till.And the organic polymer agglutinant is that (S, weight S) reaches 0.5-1.0%, adds poly amic acid (Polyacrylamide) etc. in order to make suspended solid.

4) water extracter operation

After the organic sewage aggegation operation of liquid state corrosionization, force to carry out separating of solid and liquid with water extracter.Take off rate liquid and release after for the simple operations such as adjusting PH of releasing, the dehydration piece is to generate high-quality fertilizer in the composting engineering of the aftertreatment engineering of quadravalence section.

The another embodiment of the foregoing description is as follows:

1) with cesspool emptier people's fecaluria is regained after, remove sand and impurity stores in retention basin afterwards with desilting bucket strainer.At this moment each index is as follows:

PH→8.7，BOD→15，800mg/l，CODmn→12，500mg/l，

SS→21，800mg/l，T-P→393mg/l

When 2) causing the turbid solution corrosionization end afterwards of liquid corrosive fluid in advance, the turbid solution that is equivalent to one day treatment capacity is delivered to tempering tank from liquid etching tank, again the fecaluria of removing impurity of same component is sent to liquid etching tank from retention basin, and supply air and carry out quick-fried gas, implement biological purification.

3) treatment solution that is sent to the agglutination reaction groove is to have finished corrosionization, reach the appearance of nitrous acid nitrogen or the degree of purification before it, here ferrous chloride 2,000-4,000PPM and organic polymer agglutinant also with carrying out the aggegation operation, carry out separating of solid and liquid to this aggegation treatment solution with belt compression-type water extracter.

In order to release, this disengaging liquid is carried out release after the simple operation such as PH adjustment.The water quality for the treatment of water is as follows:

PH→7.2，BOD→18mg/l，CODmn→258mg/l，SS→12mg/l，T-P→3mg/l

The embodiment of the invention is as above sunk to different the method for solid and liquid separation with leaning on gravity in the past naturally, when solid and liquid separation without settling bath, therefore influence all operating conditions of sludge settling, for example sludge volume index (SVI) is returned rate, the BOD-MLSS load, have or not a large amount of bacteriums conditions such as (Bulking bacteriums) to consider, running management is extremely easy, water extracter breaks away from liquid and is not returned to the mud retention basin, therefore equipment is oversimplified, all treated sewage are directly carried out aggegation to be handled, with water extracter solid and liquid separation, can keep reliable treating water water quality, and, have and to remove the advantage of dephosphorization (P) owing to add ferrous chloride.

After finishing above-mentioned phase III treatment project, the aftertreatment engineering of the organic sewage that purify.Embodiment is as follows:

Dewatering unit in the dehydration engineering that the embodiment of the invention seven is represented the moisture that contains in the solids after the dregs that take place after the processing impurity in fs pre-treatment engineering and phase III solid and the liquid separation is dewatered.

The embodiment of the invention possesses much trapezoidal, ellipses etc. have the rod shape barred body of the suitable distance in cross section, this barred body is connect installation by suitable distance between the biside plate of plectane body, form columnar barrel, between barred body and barred body, form the drainage space of Rack, the drainage of water is carried out smoothly, and its main purpose is to provide the dehydration cylinder for the very big effect that obtains dehydration.Its formation and action effect are described in detail as follows with reference to the accompanying drawings:

Extremely shown in Figure 16 as Figure 12, the dregs that are selected in the various waste purifying treatment engineering processes that are formed on impurity or fecaluria etc. are implemented the dehydration cylinder of the dewatering unit of dehydration engineering, there are most support rings 27 of regulation internal diameter on same line, to arrange by appropriate intervals, possessing majority has the rod shape barred body 28 of the suitable length of trapezoidal or elliptic cross-section, 28 ', on the external diameter of support ring 27, fixedly mount by appropriate intervals, form columnar barrel 29, at each barred body 28,28 ' between the drainage space 30 of proper width is horizontally set with fixed simultaneously 31 li of poles, at barrel 29 both sides fixed installation axillare 32, and in axillare 32 central parts, run through installation shaft 33.

The dehydration cylinder of the embodiment of the invention of formation formation as shown in figure 14 like this, establish by the most axles of suitable arrangement form together with pressurization rotation roller group D, last lower conveyor belt 34 with filtering material formation, 35 hang with oblique attitude and to install, make it lower conveyor belt 34 on all places of formation, 35 can add mutually under the state of the E of pressurizing and dehydrating portion of press contacts, after its rotation is transmitted, put into lower conveyor belt 34 on each by selecting the isolating dregs of engineering process, in the time of between 35, lower conveyor belt 34 on passing through to form with filter paper, in 35 the process that contacts with each other the E of position pressurizing and dehydrating portion, the moisture that contains in dregs is implemented repeatedly by the process of suitable strength pressurizing and dehydrating.The barred body 28,28 of the barrel 29 of the water of in such process, deviating from from dregs by forming the dehydration cylinder ' between the drainage space 30 that forms vertically fall, draining is smoothly being carried out dehydration smoothly under the state.At this moment little pigment dirt of mixing in the water of discharging also has no the discharging smoothly of the ground of obstruction, make dewatering efficiency obtain great effect, make barrel 29 and upper and lower part travelling belt 34, be in contact with one another the area minimum between 35, make the frictional force minimum in Yun Zhuan the process together, also can prolong 34,35 work-ing lifes of travelling belt.

As above explanation is the same, the embodiment of the invention has been abandoned the mode of in the past water of discharging being discharged from the both sides of dehydration cylinder, vertically fall by between barred body, laterally forming very long drainage space, make draining unimpeded, can get rid of when dewatering engineering impurity effectively and fault cause such as in cylinder, pile up, and can prolong the travelling belt that forms by filter paper and the life-span of dewatering unit itself, make the dewatering efficiency maximum, have in operation control and can obtain good features such as effect.

The release water water quality treated according to the embodiment of the invention is as follows

Project	Organic sewage before handling	The water of releasing
			PH（－）	8.5	7.6
BOD	20,000	13
			SS	28,000	15
T-N	5,800	20
			T-P	580	0.1
Coliform group count (number/100ml)	3x10 ⁹	0

Embodiment eight

The embodiment of the invention is about the excess sludge of the aerobic Digestive system of organic sewage or active sludge treatment being made liquid corrosion turbid solution as the mud raw material, perhaps cause liquid method of corroding turbid solution easily and effectively from the high concentration organic sewage of process object itself.

Below with reference to Figure 17 present embodiment is elaborated.

The organic sewage that is removed impurity drops into about the 20-30% of liquid etching tank useful capacity after homogenization in the retention basin, according to circumstances adds dilution water (clear water), makes organic sewage reach 50% of liquid etching tank useful capacity.With the quick-fried gas of installing in the liquid etching tank of quick-fried device of air, up to the liquid corrosionization index that is over occurring.

Measuring index that whether corrosionization be over has (1) molten in nitrous acid nitrogen (2) corrosive fluid to occur in the orange experiment of nitrous acid nitrogen to deposit oxygen (DO) concentration and rise to 5PPM by the 1PPM at quick-fried gas initial stage.

If can judge that corrosionization is over according to such index, drop into the process object organic sewage that is equivalent to the about 10-20% of liquid in the liquid etching tank so again and continue quick-fried gas, whether measure corrosionization according to These parameters is over, when being over as corrosion, carry out operation as above more repeatedly, increase the turbid solution of liquid corrosive fluid.Increase turbid solution by carrying out such operating process repeatedly, as reach about 90% of liquid etching tank capacity and just finish to cause, carry out the organic sewage solid of next stage and the processing operation of liquid separation.Replace organic sewage and when portion drops into kind of mud (the aerobic Digestive system of organic sewage or the excess sludge of activated sludge method), the kind mud of input must pass through the pre-treatment facility, retention basin drops into liquid etching tank.If the kind mud total amount that drops into did not reach 50% o'clock of liquid etching tank useful capacity, should add clear water and make it to reach 50% of useful capacity.Then as above quick-fried gas, measure corrosion and whether be over, append into organic sewage (10-20% of total amount of liquid in the liquid etching tank) etc., carry out identical operations more repeatedly, useful capacity in the liquid etching tank is reached about 90%, cause the turbid solution of liquid corrosive fluid.

At this moment, as possess all planting the condition that mud (the aerobic Digestive system of organic sewage or the residue dirt of activated sludge method vanish) can both drop into from the outside, just whole kinds of mud by the pre-treatment facility, retention basin drops into, make it to reach about 90% of useful capacity in the liquid etching tank, carry out the turbid solution that as above operation causes liquid corrosive fluid more repeatedly.

The turbid solution of liquid corrosive fluid like this is through the next stage engineering, it is the aggegation engineering, dehydration engineering, solid and liquid separation are the water and as the dehydration piece of organic fertilizer raw material of releasing that meets the water quality standard of releasing, and organic sewage are treated to meet water quality standard.

In each embodiment as above, the present invention can be under no diluted state in the decomposition of liquid state corrosionization promotes oxidn and particlized along with the high concentration organic sewage composition, the variation of the muddy mud when short in the mixed solution, three reactions such as aggegation and oxidative phenomena, after Generation Liquid becomes corrosive deposit, make fine particle become big with inorganic agglutinant, make solid and liquid separate easily, therefore the water purification that obtains is to meet to release after the water quality standard or can be used in process water again, and solid part is to be used in ripe compost, contributes for improving the soil on the agricultural.And the present invention does not use the Macrodilution water that is considered to general knowledge in the past, keeps the various activity of microorganism under high concentration organic sewage yet, promotes liquid corrosionization, effectively purifies by the aggegation dehydration operation.Therefore, particularly need not consider the mud sinking of past in the settling bath that is become maximum pending case in the use of activated sludge process, have operational administrative and oversimplify, therefore also can reduce manpower, and in operation, also not need the features such as knowledge of height.

And, the present invention is not because use dilution water, facility is not huge yet, with compare the facility that can build good economy performance in the past, can reduce operating manpower, can produce be fit to the water purification and the high-quality compost of water quality standard, and have can be for preventing the pollution of the environment and being features such as the soil development of farming land makes a significant contribution.

Claims

1, a kind of high concentration organic sewage purifying method, it comprises the steps: in order to remove impurity from the high concentration organic sewage of regaining, remove impurity by pressurization device for discharging fixed and tripping device, carry out pretreated preprocessing process of fs in order to make liquid homogenization; At pretreated organic sewage of above-mentioned fs, measure in accordance with regulations and put in the muddiness of the liquid corrosive deposit that has caused, make the liquid corrosionization treatment project of subordinate phase of liquid corrosionization; Mensuration reduces inorganic agglutinant (ferrous chloride) usage quantity through the degree of purification of the organic sewage of liquid state corrosionization, makes the solid in the organic sewage force to separate with liquid, and liquid corrosive deposit is carried out the phase III aggegation processing that aggegation is handled; Dewater with water extracter by the solid part of handling through aggegation, produce the aftertreatment engineering of water purification and ripe compost.

2, a kind of refining plant that is used for the high concentration organic sewage of high concentration organic sewage purifying method according to claim 1, wherein possesses the pressurization device for discharging fixed for the impurity of removing the pre-treatment engineering, the top of this device body (1) is gone up to arrange to have installed at a turning axle (2) and is connect the impurity separating device (A) that most screen plates (3) forms, its below is a tube (4), install in it and transmit propeller (5), it according to the motivating force of engine according to certain r.p.m(rotation number) during rotation, remove on the machine in order to make the impurity pressurization device for discharging fixed arrangement installation that is transmitted by the impurity pressurization of described impurity separating device (A) separation input be formed on general impurity, the position, not end that constitutes the transmission propeller (5) of impurity pressurization device for discharging fixed connects tube (4) and body (1), when expose with suitable distance its outside portion, on axle (5a) terminal part of transmission propeller (5), form in conjunction with screw portion (5b), when both side ends upper flange (6b) is provided with jointly, the formation of one side internal diameter is littler than other, the conical tube (6) that tilts by suitable angle forms separately, assemble on (4) one ends at the tube that is positioned at body (1) one side the inner, in conjunction with, therefore, make the extending part that transmits propeller (5) be positioned at the axial region position of conical tube (6), the columnar skewed slot (7) that flange (7a) is arranged on one side is being installed on one side of conical tube (6), interconnect at the inboard tube (4) of body (1) and conical tube (6) and skewed slot (7), make the distal portion of skewed slot (7) form discharge opening (7b), and, the conical pressurization part (8a) that has than the smaller external diameter in small-bore position of conical tube (6) one sides forms in a side, when an other side prolongs formation instrument joint portion (8b), form the pressurization that forms with screw hole (8c) perforation in addition at interior axle center and regulate mouthful (8), assembling transmit propeller (5) in conjunction with screw portion (5b), it constitutes goes up and can it be moved in status level of compressing.

3, a kind of refining plant of high concentration organic sewage of the purifying method that is used for high concentration organic sewage according to claim 1, wherein, possesses impurity separating device in order in the pre-treatment engineering, to remove impurity, when the inner side-lower of this device body (1) was installed the impurity pressurization transport unit portion (B) that is formed by tube (12) and transmission propeller (13), trash flow entering plate (14) was installed in connection in the input port of tube (12) (12a).When trash flow inlet (15) and waste stream entering plate (16) are installed in other side top, it between waste stream entering plate (16) and trash flow entering plate (14) turning axle (17) that relies on other engine rotation, connect on it impurity separating device that most disk filters constitute is installed, arrangement is mounted to general impurity and removes machine, go up the most rake shape groove (18a) of outstanding formation in the outer distribution of disk filter (18) that connects installation as the turning axle (17) of impurity separating device (C) main composition body, these grooves form by appropriate intervals is outstanding, go up fixed installation by connecting rod (19) and retaining plate (20) at turning axle (17), below one side of the disk filter of rotation (18) is in abutting connection with circular-arc circular filter (21) is installed.

4, high concentration organic sewage refining plant according to claim 3, it is characterized in that, form the circular arc of the inner peripheral surface of the consistent state of rotation radius at rake shape groove (18a) terminal part of disk filter (18), but the length of circular filter (21) is longer than the spatial portion of going up at disk filter (18) by forming between outstanding each the rake shape groove (18a) that forms of appropriate intervals (h), simultaneously circular filter (21) upper end will be installed in the terminal part of waste stream entering plate (16), connects each circular filter (21) of installing at regular intervals and is installed in turning axle (17) and goes up on the position between each disk filter (18) that connects installation by connecting rod (19).

5, high concentration organic sewage purifying method according to claim 1, it is characterized in that, the organic sewage that is homogenized through preprocessing process, in the liquid corrosionization treatment project of the subordinate phase of carrying out liquid corrosionization processing in the liquid etching tank, about 16 hours of the quick-fried gas of high concentration organic sewage, make the organic nitrogen and the ammonium-nitrogen oxidation that contain, in water, stirred about two hours, be reduced into after nitrogen oxide or nitrogen discharges in atmosphere, one day usage quantity is transmitted toward next engineering, drop into again same amount through pretreated organic sewage, under the anaerobism condition, stir after about six hours recreation aerobic condition denitrogenation as above in the water.Was this process that unit carries out repeatedly with one day, to remove the nitrogen in the high concentration organic sewage.

6, high concentration organic sewage purifying method according to claim 5 is characterized in that, in liquid etching tank, the supply of air and the timer that stops to carry out repeatedly by the time planning chart attached on the gas blower.

7, high concentration organic sewage purifying method according to claim 5 is characterized in that, stirrer in the water is set in liquid etching tank.

8, high concentration organic sewage purifying method according to claim 5, it is characterized in that, the a part for the treatment of water that transmits from liquid etching tank, the micro-bubble that forms in order to the too much dissolved pressurized water of air separates the floating tripping device etc. gone up of the pressurization of the mud of corrosion and concentrates, and spissated mud is returned to liquid etching tank.

9, high concentration organic sewage purifying method according to claim 1, it is characterized in that, after the liquid corrosion of high concentration organic sewage of the aggegation treatment project of liquid corrosive deposit of phase III, when the water quality of water is released in inspection, add nitrous acid electron ion qualitative test reagent in the treatment solution 2-3 of liquid etching tank dripped, confirming that nitrous acid is electro-ionic exists (appearance of oxidation state nitrogen), judge the suitability (BOD that 30mg/l is following) of the water water quality standard of releasing, the degree of purification in handling with this aerobic of measuring organic sewage.

10, the purifying method of high concentration organic sewage according to claim 9, it is characterized in that, the appearance that the tester for the treatment of water electricity consumption ion electrode method is measured nitrous acid nitrogen or nitrate nitrogen whether, can monitor continuously whether the water of releasing meets water quality standard, the water of releasing of against regulation value is given the alarm.

11, the purifying method of high concentration organic sewage according to claim 1, it is characterized in that, in the aggegation treatment project of the liquid corrosive deposit of phase III, in the liquid etch of fecaluria or other high concentration organic sewage aggegation, solid and liquid separation, the quick-fried gas of taking of liquid corrosive fluid, make it to purify, it is carried out the aggegation processing with the ferrous chloride of 40-80% and the hydrochloric acid mixed solution of 60-20%, can reduce heavy metal content, save the agglutinant expense, and the ferrous chloride usage quantity of successively decreasing.

12, the purifying method of high concentration organic sewage according to claim 1, it is characterized in that, in the treatment project of the liquid corrosive deposit of phase III on the liquid facture of organic sewage, the liquid corrosive fluid that whole corrosionization are over is sent to the agglutination reaction groove, add ferrous chloride in order to make PH reach 4-5, and with suspended solid (S, S) the organic polymer agglutinant of weight 0.5-1.0% carries out the aggegation operation, force solid and liquid separation with water extracter, the solid of organic sewage and liquid are forced to separate.

13, a kind of high concentration organic sewage refining plant that is used for according to the purifying method of the described high concentration organic sewage of claim 1, wherein in various offal treatment engineerings, in the formation of the dehydration cylinder of the dewatering unit of the dehydration engineering of the dregs that the energy implementation sorts, most support rings (27) that the regulation internal diameter is arranged are arranged on same line by appropriate intervals, possessing majority has the rod shape barred body (28) of the suitable length of trapezoid cross section, fixed interval is installed in accordance with regulations on the external diameter of support ring (27), form columnar barrel (29), but make the drainage space (30) that forms proper width between each barred body (28), on the internal diameter of support ring (27), be horizontally set with a lot of reinforcements and use pole (31), in barrel (29) both sides fixed installation axillares (32), in axillare (32) central part, run through installation shaft (33).

14, the refining plant of high concentration organic sewage according to claim 13 is characterized in that, forms barrel (29) with the barred body (28 ') with semiellipse property cross section.

15, the purifying method of high concentration organic sewage according to claim 1, it is characterized in that, remove impurity after homogenizing in the retention basin, drop into about the 20-30% of liquid etching tank useful capacity, drop into the clear water of 30-20% again, make organic sewage reach 50% of liquid etching tank useful capacity.Then, with the quick-fried gas of installing in the liquid etching tank of quick-fried device of air, carry out the liquid state corrosionization, as the liquid corrosionization index that is over appears, drop into the organic sewage that is equivalent to the about 10-20% of liquid in the liquid etching tank again and continue quick-fried gas, measure corrosionization whether same process repeatedly, continue to cause liquid corrosion turbid solution, reach till 90% up to liquid etching tank capacity, utilize the sewage that purifies to produce water purification and ripe compost.