CN100418907C - Method and device for treating garbage percolation sewage using composite dieselguhr - Google Patents
Method and device for treating garbage percolation sewage using composite dieselguhr Download PDFInfo
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- CN100418907C CN100418907C CNB2006100440153A CN200610044015A CN100418907C CN 100418907 C CN100418907 C CN 100418907C CN B2006100440153 A CNB2006100440153 A CN B2006100440153A CN 200610044015 A CN200610044015 A CN 200610044015A CN 100418907 C CN100418907 C CN 100418907C
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Abstract
The present invention discloses a method and a device for treating garbage percolation sewage by using composite diatomite. The method comprises the steps of slaking reactions, blowing aeration, condensation support and mixing, flocculation reactions, precipitation, filtration, PH value adjustment, sterilization, etc. In the condensation support and mixing stage, composite diatomite used as coagulant aid is plunged, the double functions of the flocculation and condensation support of the composite diatomite in the garbage percolation sewage treatment are used, and the neutralization, the flocculation, the adsorption and the sedimentation of sewage can be rapidly realized. Consequently, the purposes of high treating speed, short technological process and low operation cost are achieved, and simultaneously, the purposes of the compact structure of facilities in the technological process, small occupation area and low equipment investment are also achieved.
Description
Technical field
The invention belongs to environmental technology field, particularly relate to method and device that drop liquid sewage is oozed in the compound diatomite treating refuse of a kind of usefulness.
Background technology
Along with the fast development of Chinese national economy, the significantly raising that people's unboiled water is flat, the continuous expansion of city size, the quantity discharged of rubbish is also in rapid increase, and rubbish can generation ooze drop liquid in stacking process.Garbage leachate is a kind of high strong sewage, and it pollutes composition complexity, concentration height, and the change of water quality amplitude is big, is difficult to conventional biological method qualified discharge.These garbage leachate sewage are if deal with improperly, the one, influence water quality, owing to contain a large amount of organism, biology in the garbage leachate, can consume dissolved oxygen in water during decomposition, and then the destruction eubiosis, when suffering the pollution of garbage leachate sewage, can be entrained with stink in the water, influence drinking of people as the water source of tap water; The 2nd, can harm environmental health, owing to garbage leachate sewage can stink, and grow mosquitos and flies easily, had a strong impact on the living environment quality in city, be harmful to health; The 3rd, easily cause pathophoresis, owing to may be entrained with pathogenic bacterium in the garbage leachate sewage, directly be incorporated in crop irrigation or enter the river straight if be untreated, then exist great pathophoresis hidden danger, thereby garbage leachate sewage carried out purifying treatment, be directly connected to people's living environment and healthy.Existing sewage disposal mode is varied; the processing mode that adopts diatomite to carry out sewage extensively is familiar with by institute of society and is used; the ultimate principle that diatomite is handled suspended substance is that tiny in the diatomite, porous diatom individuality at first destroys the balance between the suspended substance; then trickle suspended substance is adsorbed on around the diatom; formation is the macrobead group at center with the diatom; this relatively independent group is individual big, internal voids rate height, and mud can precipitate rapidly.But, this diatomite is used in the process of garbage leachate sewage disposal the processing mode of sewage, it pollutes composition complexity, concentration height, wherein NH owing to garbage leachate sewage
2The concentration of-N can be up to 300-600mg/L, make flocculation rate slower, suspension time is longer, treatment effect is not good, therefore, reach the treatment effect of emission standard, just must use more diatomite, floor space is big, facility investment is big, running cost is high, the drawback of complex process thereby brought.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, the method and the device that provide the compound diatomite treating refuse of a kind of usefulness to ooze drop liquid sewage are by to add a certain proportion of r-A1 in the diatomite
2O
3Molecular material and the compound diatomite that constitutes is used as coagulant aids, utilize compound diatomite that flocculation is arranged in the garbage leachate sewage disposal simultaneously and help the dual function of coagulating, can realize neutralization, flocculation, absorption and the sedimentation of sewage apace, thereby reach the purpose that processing speed is fast, technical process is short, running cost is low, make also that simultaneously the facility structure compactness, the floor space that realize this technological process are little, reach the little purpose of facility investment.
The technical solution adopted for the present invention to solve the technical problems is: the method that drop liquid sewage is oozed in the compound diatomite treating refuse of a kind of usefulness, it comprises the steps:
A. digestion reaction: garbage leachate sewage is introduced first treating pond, in first treating pond, drop into an amount of alkali,, make solvability ammonia nitrogen in the sewage to non-solubility ammonia, nitrogen transformation such as lime; The add-on of alkali so that pH value reach more than 10 for good;
B. blast aeration: the sewage after the processing of first treating pond is introduced second treating pond, in second treating pond, feed pressure air, ammonia nitrogen is carried out stripping, make water pollutant obtain abundant oxidative degradation;
C. help to coagulate and mix: the sewage after second treating pond is handled is introduced the 3rd treating pond, in the 3rd treating pond, drop into compound diatomite as coagulant aids, allow compound diatomite contact with the water pollutant thorough mixing, especially pH value greater than 10 sewage in, coagulant aids will carry out to flocculation reaction, and its absorption, net are caught, bridging action can be given full play to; Described compound diatomite is to be that 70～95% diatomite and weight percent are that 5～30% factory's aluminum oxide tankage or bauxitic clay carry out uniform mixing with weight percent, carrying out drying and dehydrating then handles, begin progressively to heat up from normal temperature, till when temperature reaches 450 ℃～550 ℃, crush and screen the greyish white lurid mixed powder of making at last, contain the r-Al of needle-like crystal in the powder
2O
3Molecular material;
D. flocculation reaction: the sewage after the processing of the 3rd treating pond is introduced the 4th treating pond, in the 4th treating pond, drop into coagulating agent, such as Tai-Ace S 150, dissolved contaminants in the sewage takes off surely pollutants in sewage under the chemical reaction effect of coagulating agent, carries out to unbound state from homogeneous state, this moment, coagulant aids played one's part to the full, under certain hydraulics, form thick flocs unit, and proportion is also big than the flocs unit that does not add coagulant aids, makes it can precipitate rapidly in subsequent process;
E. precipitate: the sewage after the 4th treating pond is handled is introduced the 5th treating pond, under the sluggish flow state, makes the flocs unit precipitation, spins off from sewage;
F. filter: the sewage after the 5th treating pond is handled is introduced the 6th treating pond, to remove some too small flocs units;
The g.PH value is adjusted: the water body after the 6th treating pond is handled is introduced the 7th treating pond, drops into PH and adjust agent in the 7th treating pond, such as sulfuric acid, with the remaining basicity that neutralizes;
H. sterilization: the water body after the processing of the 7th treating pond is introduced the 8th treating pond, in the 8th treating pond, drop into sterilizing agent, such as chlorine.
The method that drop liquid sewage is oozed in the compound diatomite treating refuse of usefulness of the present invention, in the digestion reaction stage, because ammonia. nitrogen is difficult to remove with the method for flocculation sediment, so handled in the initial period, consider the needs of subsequent technique, throwing alkali in this technology with lapidation ash for well, can make solvability ammonia in the sewage by the lapidation ash, nitrogen is to non-dissolubility ammonia, nitrogen transformation, making chemistry for the aeration denitrogenation prepares, when improving sewage PH value, can make that the particle more than 1 micron dissociates out in the sewage from heavy-gravity sewage, allow resolvability phosphoric acid salt reduce to below the 1mg/L, remove the calcium in the sewage, magnesium, fluorochemical and some heavy metal are especially to the precipitation cadmium, chromium, copper, nickel, pollutents such as lead and silver are effective especially, and bacterium and viral level in the sewage are reduced.When the pH value in the digester greater than 10.5 the time, more than reaction and effect will very obvious, and, this mode, also for saving coagulant aids and coagulating agent consumption, give full play to its help coagulate, coagulation, do the technology preparation for improving subsequent technique.
The method that drop liquid sewage is oozed in the compound diatomite treating refuse of usefulness of the present invention in the blast aeration stage, mainly is that ammonia nitrogen is carried out stripping, makes water pollutant obtain abundant oxidative degradation, for place mat is made in follow-up flocculation reaction.
The method that drop liquid sewage is oozed in the compound diatomite treating refuse of usefulness of the present invention, helping mix stages with fixed attention, be fully to digest in front on the basis of aeration denitrogenation, allow compound diatomite contact with the water pollutant thorough mixing, especially pH value greater than 10 sewage in, coagulant aids will carry out to flocculation reaction, its absorption, net are caught, bridging action can be given full play to, because it is big that the proportion of coagulant aids in sewage is dissolved in pollutants in sewage than other, therefore, the waterpower turbulent flow rate here should be greater than the sinking velocity of flocs unit.Because the r-Al of diatomite and needle-like crystal
2O
3Quite a few has formed flocs unit to molecular material in the water body of high pH value, can perform adequate preparation for follow-up flocculation reaction.Compound diatomite is placed on after the denitrogenation of digestion aeration, mainly is the basicity that makes full use of in the water, and the unlikely aeration system denitrification effect that influences, and the oxidative degradation in early stage, only in this way, compound diatomaceous chemical physical action could effectively be brought into play.Remaining basicity and-r-Al in this moment sewage
2O
3Reaction generates Al (OH)
3Flocs unit participation effect is purified waste water.
The method that drop liquid sewage is oozed in the compound diatomite treating refuse of usefulness of the present invention, in the flocculation reaction stage, the coagulating agent of adding is good to throw Tai-Ace S 150, this is because after the Tai-Ace S 150 decomposition, a part produces Al (OH)
3↓ flocs unit precipitation, sulfate ion then with Ca (OH)
2Reaction generates the low CaSo of solubleness
4↓ major part is precipitated removal with flocs unit.
The method that drop liquid sewage is oozed in the compound diatomite treating refuse of usefulness of the present invention, in the pH value adjusting stage, need to add sour agent, this is because the digestion reaction stage is dropped into the cause of alkali, remaining basicity is used acid and is adjusted, this is for making the sewage after treatment can qualified discharge, also is to be excessive the preparing of the unlikely consumption of follow-up sterilizing agent.
A kind ofly realize that the compound diatomite treating refuse of above-mentioned usefulness oozes the device of drop liquid sewage, comprise that mine-fills mixing trough treating pond, aeration tank, reaction tank, settling tank, filter tank, pH value adjust pond, sterilization pool, sludge thickener, sewage lagoon; The inlet of mine-fills mixing trough treating pond and the garbage leachate exit or entrance of a clitch are connected; The outlet of mine-fills mixing trough treating pond and the inlet of aeration tank are connected; The inlet that the compound diatomite of the outlet of aeration tank and reaction tank is thrown in the chamber is connected, and the inlet that the outlet of the compound diatomite input chamber of reaction tank and the coagulating agent of reaction tank are thrown in the chamber is connected; The coagulating agent of reaction tank is thrown in the outlet of chamber and the inlet of settling tank is connected; The outlet of settling tank and the inlet in filter tank are connected; The inlet that the outlet in filter tank and pH value are adjusted the pond is connected; PH value is adjusted the outlet in pond and the inlet of sterilization pool is connected; The outlet of sterilization pool is the water body discharge outlet; The sludge outlet that the coagulating agent that the compound diatomite of the sludge outlet of aeration tank bottom, reaction tank is thrown in sludge outlet, the reaction tank of bottom, chamber is thrown in the bottom in the sludge outlet of the sludge outlet of bottom, chamber, settling tank bottom, filter tank is connected with the inlet of sludge thickener respectively, the outlet of sludge thickener is connected by the inlet of sludge dehydration device and sewage lagoon, and the compound diatomite of the outlet of sewage lagoon and reaction tank is thrown in the chamber and is connected.
The invention has the beneficial effects as follows, owing to adopted digestion reaction, blast aeration, help to coagulate and mix, flocculation reaction, precipitation, filter, pH value is adjusted, steps such as sterilization realize the processing to garbage leachate sewage, and helping mix stages with fixed attention, by dropping into compound diatomite as coagulant aids, utilize compound diatomite that flocculation is arranged in the garbage leachate sewage disposal simultaneously and help the dual function of coagulating, can realize the neutralization of sewage apace, flocculation, absorption and sedimentation, like this, just can significantly reduce diatomaceous usage quantity, handle same sewage, half of the diatomite usage quantity that compound diatomaceous diatomite usage quantity of the present invention only is former mode, what is more important, because processing speed is accelerated, the treatment time of sewage is shortened greatly, the volume of entire treatment device also dwindles greatly, has brought the little benefit of facility investment after floor space is dwindled; Behind the technical process weak point, running cost is also reduced relatively on the other hand.Thereby method and device that drop liquid sewage is oozed in the compound diatomite treating refuse of usefulness of the present invention have bigger popularizing value.
Description of drawings
Below in conjunction with drawings and Examples the present invention is described in further detail; But the compound diatomite treating refuse of a kind of usefulness of the present invention is oozed the method and the device of drop liquid sewage and is not limited to embodiment.
Fig. 1 is the organigram of device of the present invention.
Embodiment
The device of drop liquid sewage is oozed in the compound diatomite treating refuse of a kind of usefulness of the present invention, comprises digestion mine-fills mixing trough treating pond 1, aeration tank 2, reaction tank 3, settling tank 4, filter tank 5, pH value adjustment pond 6, sterilization pool 7, sludge thickener 8, sewage equalizing tank 9; The inlet of digestion mine-fills mixing trough treating pond 1 and garbage leachate flow into the exit or entrance of a clitch and are connected; The outlet of digestion mine-fills mixing trough treating pond 1 is connected by the inlet of pipeline or irrigation canals and ditches and aeration tank 2; The inlet that the outlet of aeration tank 2 is thrown in chamber 31 by the compound diatomite of pipeline and reaction tank 3 is connected, and the inlet that the outlet of the compound diatomite input chamber 31 of reaction tank 3 and the coagulating agent of reaction tank 3 are thrown in chamber 32 is connected; The coagulating agent of reaction tank 3 is thrown in the outlet of chamber 32 and the inlet of settling tank 4 directly is connected; The outlet of settling tank 4 is connected by the inlet in pipeline and filter tank 5; The inlet that the outlet in filter tank 5 is adjusted pond 6 by pipeline and pH value is connected; The outlet in pH value adjustment pond 6 is connected by the inlet of pipeline and sterilization pool 7; The outlet of sterilization pool 7 is the water body discharge outlet; The sludge outlet that the coagulating agent that the compound diatomite of the sludge outlet of 2 bottoms, aeration tank, reaction tank is thrown in sludge outlet, the reaction tank of 32 bottoms, chamber is thrown in the bottom in the sludge outlet of the sludge outlet of bottom, chamber 32, settling tank 4 bottoms, filter tank 5 is connected with the inlet of sludge thickener 8 respectively, the outlet of sludge thickener 8 is connected by the inlet of sludge dehydration device 81 with sewage lagoon 9, and the compound diatomite of the outlet of sewage lagoon 9 and reaction tank is thrown in chamber 31 and is connected.
The method that drop liquid sewage is oozed in the compound diatomite treating refuse of a kind of usefulness of the present invention, its technological process comprises as follows;
Step a. digestion reaction: garbage leachate sewage is introduced digestion mine-fills mixing trough treating pond 1, in digestion mine-fills mixing trough treating pond 1, drop into an amount of alkali A, throw alkali with the lapidation ash for well, can make solvability ammonia in the sewage by the lapidation ash, nitrogen is to non-dissolubility ammonia, nitrogen transformation, making chemistry for the aeration denitrogenation prepares, when improving sewage PH value, can make that the particle more than 1 micron dissociates out in the sewage from heavy-gravity sewage, allow resolvability phosphoric acid salt reduce to below the 1mg/L, remove the calcium in the sewage, magnesium, fluorochemical and some heavy metal, especially to the precipitation cadmium, chromium, copper, nickel, pollutents such as lead and silver are effective especially, and bacterium and viral level in the sewage are reduced.When the pH value in the digester greater than 10.5 the time, more than reaction and effect will very obvious, and, this mode, also for saving coagulant aids and coagulating agent consumption, give full play to its help coagulate, coagulation, do the technology preparation for improving subsequent technique.
Step b. blast aeration: the sewage that will digest after mine-fills mixing trough treating pond 1 is handled is introduced aeration tank 2 by pipeline, in aeration tank 2, feed pressure air B, ammonia nitrogen is carried out stripping, make water pollutant obtain abundant oxidative degradation, for place mat is made in follow-up flocculation reaction.
Step c helps to coagulate mixes: the compound diatomite that the sewage after aeration tank 2 is handled is introduced reaction tank 3 by pipeline is thrown in chamber 31, throw in the compound diatomite C that drops in the chamber 31 as coagulant aids to the compound diatomite of reaction tank 3, allow compound diatomite contact with the water pollutant thorough mixing, especially pH value greater than 10 sewage in, coagulant aids will carry out to flocculation reaction, its absorption, net is caught, bridging action can be given full play to, because it is big that the proportion of coagulant aids in sewage is dissolved in pollutants in sewage than other, therefore, the waterpower turbulent flow rate here should be greater than the sinking velocity of flocs unit; Input compound diatomite is to be that 70～95% diatomite and weight percent are that 5～30% factory's aluminum oxide tankage or bauxitic clay carry out uniform mixing with weight percent, carrying out drying and dehydrating then handles, begin progressively to heat up from normal temperature, till when temperature reaches 450 ℃～550 ℃, crush and screen the lurid mixed powder of making of grey leukorrhea at last, contain the r-Al of needle-like crystal in the powder
2O
3Molecular material; Because the r-Al of diatomite and needle-like crystal
2O
3Quite a few has formed flocs unit to molecular material in the water body of high pH value, can perform adequate preparation for follow-up flocculation reaction; Compound diatomite is placed on after the denitrogenation of digestion aeration, mainly is the basicity that makes full use of in the water, and the unlikely aeration system denitrification effect that influences, and the oxidative degradation in early stage, only in this way, compound diatomaceous chemical physical action could effectively be brought into play.Remaining basicity and-r-Al in this moment sewage
2O
3Reaction generates Al (OH)
3Flocs unit participation effect is purified waste water.
Steps d. flocculation reaction: the compound diatomite of reaction tank 3 is thrown in the coagulating agent input chamber 32 that the sewage after handle chamber 31 is directly introduced reaction tank 3, throw in input coagulating agent D in the chamber 32 to the coagulating agent of reaction tank 3, dissolved contaminants in the sewage is under the chemical reaction effect of coagulating agent, pollutants in sewage is taken off surely, carry out to unbound state from homogeneous state, this moment, coagulant aids played one's part to the full, under certain hydraulics, form thick flocs unit, and proportion is also big than the flocs unit that does not add coagulant aids, makes it can precipitate rapidly in subsequent process; The coagulating agent that adds is good to throw Tai-Ace S 150, and this is because after the Tai-Ace S 150 decomposition, a part produces Al (OH)
3↓ flocs unit precipitation, sulfate ion then with Ca (OH)
2Reaction generates the low CaSo of solubleness
4↓ major part is precipitated removal with flocs unit.
Step e. precipitation: the sewage that the coagulating agent of reaction tank 3 is thrown in after handle chamber 32 is directly introduced settling tank 4, under the sluggish flow state, make the flocs unit precipitation, from sewage, spin off.
Step f. filters: the sewage after settling tank 4 is handled is introduced filter tank 5 by pipeline, to remove some too small flocs units.
Step g .PH value is adjusted: the water body after filter tank 5 is handled is introduced pH value by pipeline and is adjusted pond 6, in adjusting pond 6, drops into pH value sour agent E, add sour agent in the pH value adjusting stage, this is because the digestion reaction stage is dropped into the cause of alkali, remaining basicity is used acid and is adjusted, this is for making the sewage after treatment can qualified discharge, also is to be excessive the preparing of the unlikely consumption of follow-up sterilizing agent.
Step h. sterilization: the water body that pH value is adjusted after handle in pond 6 is introduced sterilization pool 7 by pipeline, in sterilization pool 7, drop into sterilizing agent such as chlorine F etc.
After above-mentioned steps, the water body of being discharged by the outlet of sterilization pool 7 is a qualified discharge water; The coagulating agent of throwing in sludge outlet, the reaction tank of 31 bottoms, chamber by the compound diatomite of the sludge outlet of 2 bottoms, aeration tank, reaction tank is thrown in mud that the sludge outlet of the bottom in the sludge outlet of the sludge outlet of bottom, chamber 32, settling tank 4 bottoms, filter tank 5 picks out respectively then is connected to sludge thickener 8 by pipeline inlet, after carrying out solid-liquid separation by the outlet of sludge thickener 8 by sludge dehydration device 81 then, its sewage enters sewage lagoon 9, and the compound diatomite that the sewage of sewage lagoon 9 is received reaction tank is thrown in chamber 31 carry out circular treatment.
Below in conjunction with test, the effect that adopts method of the present invention and device to carry out the garbage leachate sewage disposal is described to the treating processes of Fujian Province's Ninghua County refuse landfill.
(1), the contamination index of Ninghua County refuse landfill garbage leachate is:
NH
3-N 200～600mg/L
BOD
5 3000～8000mg/L
CODcr 5000～12000mg/L
(2), adopt method of the present invention and device to carry out in the treating processes, at the digestion aeration phase:
NH
3-N 200～the 600mg/L of intaking
Water outlet 20～30mg/L
BOD
5Water inlet 4000～6000mg/L
Water outlet 800～1200mg/L
CODcr 5000～the 8000mg/L of intaking
Water outlet 1000～2000mg/L
PH water inlet 7.3～7.6
Water outlet 10～12
(3), in the reaction precipitation stage:
NH
3-N 20～the 30mg/L of intaking
Water outlet 10～15mg/L
BOD
5Water inlet 800～1200mg/L
Water outlet 30～50mg/L
CODcr 1000～the 2000mg/L of intaking
Water outlet 100～200mg/L
PH water inlet 10～12
Water outlet 7.6～8
(4), at filtration stage:
NH
3N 10～the 15mg/L of intaking
Water outlet 6～10mg/L
BOD
5Water inlet 30～50mg/L
Water outlet 10～20mg/L
CODcr 100～the 200mg/L of intaking
Water outlet 50～80mg/L
PH water inlet 7.6～8
Water outlet 7.3～7.6
(5), in the sterilization discharge phase:
NH
3-N 6～the 10mg/L of intaking
BOD
5Water inlet 10～20mg/L
CODcr 50～the 80mg/L of intaking
Water outlet 45～75mg/L
PH water inlet 7.3～7.6
Water outlet 7.0～7.3
(6), with reference to the emission standard of sanitary sewage:
NH
3-N≤15mg/L
BOD
5≤30mg/L
CODcr≤100mg/L
SS≤70mg/L
The compound diatomite treating refuse of usefulness of the present invention is oozed the method for drop liquid sewage and is installed the complete allow compliance with emission standards of handled garbage leachate sewage.
The foregoing description only is used for further specifying method and the device that drop liquid sewage is oozed in the compound diatomite treating refuse of usefulness of the present invention; but the present invention is not limited to embodiment; every foundation technical spirit of the present invention all falls in the protection domain of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (4)
1. method of oozing drop liquid sewage with compound diatomite treating refuse, it is characterized in that: it comprises the steps:
A. digestion reaction: garbage leachate sewage is introduced first treating pond, in first treating pond, drop into alkali, make solvability ammonia nitrogen in the sewage to non-solubility ammonia, nitrogen transformation; The alkali number that drops into should make that the pH value of sewage is not less than 10 in the pond;
B. blast aeration: the sewage after the processing of first treating pond is introduced second treating pond, in second treating pond, feed pressure air, ammonia nitrogen is carried out stripping, make water pollutant obtain abundant oxidative degradation;
C. help to coagulate and mix: the sewage after second treating pond is handled is introduced the 3rd treating pond, in the 3rd treating pond, drop into compound diatomite as coagulant aids, allow compound diatomite contact with the water pollutant thorough mixing, pH value greater than 10 sewage in, coagulant aids will carry out to flocculation reaction, and its absorption, net are caught, bridging action can be given full play to; Described compound diatomite is to be that 70～95% diatomite and weight percent are that 5～30% factory's aluminum oxide tankage or bauxitic clay carry out uniform mixing with weight percent, carrying out drying and dehydrating then handles, begin progressively to heat up from normal temperature, till when temperature reaches 450 ℃～550 ℃, obtain the pale yellow mixed powder of grey leukorrhea, contain the r-Al of needle-like crystal in the powder after cooling crushes and screens
2O
3Molecular material;
D. flocculation reaction: the sewage after the processing of the 3rd treating pond is introduced the 4th treating pond, in the 4th treating pond, drop into coagulating agent, dissolved contaminants in the sewage is under the chemical reaction effect of coagulating agent, pollutants in sewage is taken off surely, carry out to unbound state from homogeneous state, this moment, coagulant aids played one's part to the full, and formed thick flocs unit under certain hydraulics, and proportion is also big than the flocs unit that does not add coagulant aids, makes it can precipitate rapidly in subsequent process;
E. precipitate: the sewage after the 4th treating pond is handled is introduced the 5th treating pond, under the sluggish flow state, makes the flocs unit precipitation, spins off from sewage;
F. filter: the sewage after the 5th treating pond is handled is introduced the 6th treating pond, to remove some too small flocs units;
The g.PH value is adjusted: the water body after the 6th treating pond is handled is introduced the 7th treating pond, drops into sour agent in the 7th treating pond, with the remaining basicity that neutralizes;
H. sterilization: the water body after the processing of the 7th treating pond is introduced the 8th treating pond, in the 8th treating pond, drop into sterilizing agent.
2. the method that drop liquid sewage is oozed in the compound diatomite treating refuse of a kind of usefulness according to claim 1 is characterized in that: the alkali that the described digestion reaction stage adds is lime.
3. the method that drop liquid sewage is oozed in the compound diatomite treating refuse of a kind of usefulness according to claim 1 is characterized in that: the coagulating agent that the described flocculation reaction stage adds is a Tai-Ace S 150.
4. the device of the method for drop liquid sewage is oozed in the compound diatomite treating refuse of a realization usefulness as claimed in claim 1, it is characterized in that: comprise mine-fills mixing trough treating pond, aeration tank, reaction tank, settling tank, filter tank, pH value adjustment pond, sterilization pool, sludge thickener, sewage lagoon; The inlet of mine-fills mixing trough treating pond and the garbage leachate exit or entrance of a clitch are connected; The outlet of mine-fills mixing trough treating pond and the inlet of aeration tank are connected; The inlet that the compound diatomite of the outlet of aeration tank and reaction tank is thrown in the chamber is connected, and the inlet that the outlet of the compound diatomite input chamber of reaction tank and the coagulating agent of reaction tank are thrown in the chamber is connected; The coagulating agent of reaction tank is thrown in the outlet of chamber and the inlet of settling tank is connected; The outlet of settling tank and the inlet in filter tank are connected; The inlet that the outlet in filter tank and pH value are adjusted the pond is connected; PH value is adjusted the outlet in pond and the inlet of sterilization pool is connected; The outlet of sterilization pool is the water body discharge outlet; The sludge outlet that the coagulating agent that the compound diatomite of the sludge outlet of aeration tank bottom, reaction tank is thrown in sludge outlet, the reaction tank of bottom, chamber is thrown in the bottom in the sludge outlet of the sludge outlet of bottom, chamber, settling tank bottom, filter tank is connected with the inlet of sludge thickener respectively, the outlet of sludge thickener is connected by the inlet of sludge dehydration device and sewage lagoon, and the compound diatomite of the outlet of sewage lagoon and reaction tank is thrown in the chamber and is connected.
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| CN105536315B (en) * | 2015-12-01 | 2017-07-28 | 中国航空规划设计研究总院有限公司 | Separation of solid and liquid structure and its method under a kind of corrosive atmosphere |
| CN109231554A (en) * | 2018-10-12 | 2019-01-18 | 南京易洁环保科技有限公司 | A kind of urban sewage purification technique |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296925A (en) * | 1999-11-18 | 2001-05-30 | 同济大学 | Process for treating percolate from garbage filling field |
| CN1410374A (en) * | 2001-09-29 | 2003-04-16 | 成都市环境保护科学研究所 | Garbage percolation liquid treatment method |
| US20030111411A1 (en) * | 2000-08-16 | 2003-06-19 | Gunter Lorenz | Method for purifying waste water, and purification plant for carrying out said method |
| CN1528685A (en) * | 2003-09-30 | 2004-09-15 | 深圳市宇力科技有限公司 | House refuse percolate treating method |
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2006
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1296925A (en) * | 1999-11-18 | 2001-05-30 | 同济大学 | Process for treating percolate from garbage filling field |
| US20030111411A1 (en) * | 2000-08-16 | 2003-06-19 | Gunter Lorenz | Method for purifying waste water, and purification plant for carrying out said method |
| CN1410374A (en) * | 2001-09-29 | 2003-04-16 | 成都市环境保护科学研究所 | Garbage percolation liquid treatment method |
| CN1528685A (en) * | 2003-09-30 | 2004-09-15 | 深圳市宇力科技有限公司 | House refuse percolate treating method |
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