CN1778688A - Water purification, mud treatment and water purifier - Google Patents
Water purification, mud treatment and water purifier Download PDFInfo
- Publication number
- CN1778688A CN1778688A CN 200510094819 CN200510094819A CN1778688A CN 1778688 A CN1778688 A CN 1778688A CN 200510094819 CN200510094819 CN 200510094819 CN 200510094819 A CN200510094819 A CN 200510094819A CN 1778688 A CN1778688 A CN 1778688A
- Authority
- CN
- China
- Prior art keywords
- water
- sludge
- mud
- transition band
- filtration
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
A water cleaning treatment, water cleaning treater and sludge disposal are disclosed. The treatment is carried out by adding raw water into coagulating agent, flowing it into filtering chamber, screening, depositing, and contact coagulating to separate clean water from sludge. A long-staple filter belt(1) with continuous rotary movement and driven filter belt(1) and transferring mesh belt are arranged in filter chamber, separator out of filter chamber is used to flush sludge, sludge is adjusted pH to 3.5-4.5 by inorganic acid solution and separated and flocculating agent is recovered by filtrate. Filter residue is safety sludge can be used for building materials, filler or fertilizer.
Description
One, technical field:
The present invention relates to the method for disposal of the mud that generates in water purification treatment process and device and the treating processes.
Two, background technology:
The present both at home and abroad tap water technology of producing, its ultimate principle all be coagulation-precipitation-filtrations-sterilization (it is of a specified duration outstanding that " giving water treatment " permitted the guarantor, China Construction Industry Press, in May, 79 first version p1～148; " modern environment hygiology " Cai Hongdao chief editor, the People's Health Publisher, in September, 95 first version p549～567).Wherein, settling apparatus includes settling pond, swash plate tube settler, rectangular sedimentation tank.And the moulding of settling pond can be divided into again, various forms such as accelerating purifying pool, circulatior clarifier, plusator and sludge blanket clarifier.Though but adopt the sort of coprecipitation mode, all have the blowdown problem.As rectangular sedimentation tank, its blowdown is the suction dredger operation by very big driving frame, need siphon away a large amount of water when inhaling mud.Rectangular sedimentation tank is a not only high but also big also very long buster, " pond is high 1～3 meter, and is flow velocity 1～25cm/ second, long: dark=10: 1 " selects from " outdoor water supply engineering standard " construction standardization classification compilation, China Construction Industry Press, in February, 2000 first version p1～19.Filtration in the existing production technique realizes (" giving water treatment " p114) by filtrates such as quartz sand, garnet, hard coal, diatomite, no matter adopts the sort of filtrate, all back flushing must be set for the filter tank." filter tank work can be divided into for three phases: the ripening stage; filtration phase and cleaning phase " (" modern environment hygiology " Cai Hongdao chief editor, the People's Health Publisher, in September, 95 first version p559), " finish from stopping to be filled into cleaning; generally need 20～30 minutes, during this period of time the filter tank stops to produce, and the clear water that flushing is consumed is 1%～3% of filter tank production approximately.Add filtrate to waste " (" giving water treatment " p98), the time that the filter tank stops to produce tended to greater than 20～30 minutes, and the water that expends also is greater than 1%～3%.In the actual motion, the producing water ratio of water factory is about 90% mostly.It is said to introduce speech according to Beijing tap water museum, and the producing water ratio of the 9th waterworks, Beijing also has only 95%.
In addition, with prior art, even if rapid filter, its filtering velocity generally also can only reach 8～10m/h; Forcing filter rate is 10～12m/h.(" give water treatment " p93, " modern environment hygiology " Cai Hongdao chief editor, the People's Health Publisher, in September, 95 first version p563).According to standard (" national standard of city tap-water (GB5749-85) "), opacity is not more than 3 degree.
After suction dredger connects one sucking-off of water with the mud that is detained in the settling tank and be accumulated to some amount, with backwashing water in the filtering basin (containing filter residue) merging polyacrylamide flocculation treatment, separate then, water is sent former pond back to, and the mud slurry is directly thrown aside or is processed into sludge cake and throws aside.
Polyacrylamide is the flocculation agent of using always in tap water production and sewage disposal." polyacrylamide contains a small amount of unpolymerized acrylamide monomer, and its toxicity is very high, and the maximum permissible intake of acrylamide is the 0.5ug/kg body weight for each person every day.The advantage of polyacrylamide is: turbid to height all excellent with effect low-cloudy water.Shortcoming is: cost an arm and a leg, monomer content is difficult for reaching requirement in the product." " modern environment hygiology " Cai Hongdao chief editor, the People's Health Publisher, in September, 95 first version p554.Acrylamide also is the carcinogenic substance of generally acknowledging.
The composition of mud is very complicated, and in sewage treatment process, bacterium and most of Parasites are deposited in the mud, and virus can be adsorbed on the particle in the sewage, also deposits in the mud with the particulate precipitation.
These microorganisms comprise: colibacillus, large intestine caprophyl, streptococcus faecium, phage, Salmonellas, dysentery Pseudomonas, verdigris color utmost point hair bacillus, parasitic ovum/larva, roundworm, whipworm, colony whipworm, bow roundworm, Hymenoptera larva, enterovirus etc.
Mud foul smell complicated component is changeable, mainly is made up of ammonia, hydrogen sulfide and methyl alcohol etc.Roughly can be divided into 5 classes: 1, the compound of sulfur-bearing, as H
2S, thio-alcohol, thioether class; 2, nitrogenous compound. as amine, acid amides, indoles; 3, halogen and derivative are as chlorine, halohydrocarbon; 4, hydro carbons is as alkane, alkene, alkynes, aromatic hydrocarbon; 5, oxygen containing organism is as alcohol, phenol, aldehyde, ketone, organic acid etc.These materials are bigger to human health damage.
To be that the normal ejecta of Mammals rectum, their quantity are basic in sewage and mud keep constant because the source of municipal wastewater is human habitat, colibacillus, large intestine caprophyl, streptococcus faecium etc. in the harm of mud.And popular relevant with local transmissible disease of other various pathogenic bacterias such as Salmonellas, dysentery bacillus, enterovirus (for example poliovirus, Coxsackie virus, hepatitis virus, rotavirus) and the ratio of Parasites (for example roundworm, whipworm, entamoeba worm) in sewage/mud.Obviously,, enter human food chain, will inevitably cause transmission of disease if mud is mishandling.
As-Is, sludge cake water ratio height, nearly more than 70%, this part moisture content is difficult to burn, the transportation cost height, the stacking floor space is big, and directly landfill then can make landfill yard scrap in advance.Microorganism, pathogenic agent content height do not add processing, may the contaminated food chain.The odor pollution environment is simultaneously to airborne release greenhouse gases (be carbonic acid gas 20 times).There is bigger danger in ultrafine powder in heat drying and treating processes.The disposal of mud is a domestic and international very thorny generally acknowledged problem.
The processing of mud: adopt landfill and burning at present abroad, the burning expense is too high and the landfill secondary pollution is serious, and takies too much soil, the waste pit of one 5 ten thousand stere, only enough about 20 months.Build burning boiler and be effective means, but its investment and processing costs are high, the incineration plant that facility investment is 4,000 ten thousand yuan, time limit of service only 20 years; The present overwhelming majority of the mud of China is thrown aside or landfill, has only indivisible carrying out to be used for making mixing fertilizer after the mummification.Sewage Plant can only pile up the river shoal to mud, causes the pollution of river system; The usefulness that Sewage Plant has is drawn the mud car to pull away and is thrown aside; There is the workman mud of Sewage Plant slurry to be pulled away, arbitrarily throws aside with ship.All this kind has reflected difficulty in this stage sludge disposal work and managerial helpless.
The European Community divides Sewage Plant and alum sludge into " specific refuse " (not being " dangerous garbage "), and the enterprise that must qualify program is according to the rules dealt carefully with, and must not throw aside.
Processing cost, because the economic conditions of various places are different different with treatment process, price is also different.Reach three or four hundred yuan as ground such as Shanghai, Changzhou sludge treatment cost per ton.European countries are used to handle the expense of excess sludge every year just up to 2,800,000,000 Renminbi.Obviously, any measure that helps reducing excess sludge all will bring huge economic benefit.Only accomplish minimizing, resource utilization, harmlessness disposing mud, could fundamentally reach environmental protection, the purpose of cost saving.
According to existing production technique, operator need be with a large amount of time loss in back flushing and blowdown, and especially the dead bird of buoyant, dead fish and alumen ustum on the horizontal flow basin need ceaselessly cleaning, and labour intensity is big.
Three, summary of the invention:
The present invention is for avoiding above-mentioned existing in prior technology weak point, and a kind of purifying treatment method and the device of water in purifying that be applied in is provided, and with the method for disposal of the mud of this treatment process generation.In the hope of enhance productivity, energy efficient, reduce cost, realize minimizing, the resource utilization and innoxious of mud simultaneously, the introducing of stopping polyacrylamide.
The present invention solves the technical scheme that the water treatment technology problem adopted:
Water purifies and finishes in the filtration chamber.The transition band that the filtration chamber is had a filtration, purification function is divided into muddy water district and the clear water zone under it on it.Former water adds coagulating agent to carry out flowing into the muddy water district after the coagulating treatment, finishes the scavenging process that screens out, precipitates and contact cohesion under the effect of continuous rotating transition band.Muddy water enters clear water zone by carrying-off through the clear water that coagulation, filtration obtain, and sludge settling is moved on transition band outside the filtration chamber, separates falling into sludge sump then on the inherent filtration band.
This purifying treatment method comprises coagulation, precipitation and the filtration that former water is carried out, be with the fundamental difference of prior art: described precipitation is to finish in the filtration chamber with filtration and separating of mud and clear water, Here it is flows directly into the muddy water district of filtration chamber with the water of coagulating treatment, when the sludge stream in the muddy water is crossed the transition band of turning motion, be filtered with on long wool catch and be moved to outside the filtration chamber, separate on the inherent filtration band then and fall into sludge sump, isolating method can be vibration or dial from or/and flushing that the clear water that sees through transition band enters clear water zone.
Described transition band is selected from synthon long wool cloth or steel fiber long wool cloth or flex foam, synthon long wool cloth or the steel fiber long wool cloth of the long 10～15cm of preferred suede.
Described former water is if be used to produce tap water, and then resulting clear water also need be disinfected.This purifying treatment method also is applicable to sewage disposal.
This purifying processing device comprises filtration chamber, separator and sludge sump, as shown in Figure 1 and Figure 2.Be provided with in the filtration chamber that head and the tail connect and make the transition band 1 of continuous turning motion on the guide roller 2; Also be provided with at least one group and be used for driving the transmission guipure 3 that transition band 1 is done turning motion, transmit guipure 3 and be looped around on the roller 4 at two ends, anti-pocket roller bar 5 is arranged between two rollers 4; Separator is made of mobile jib 6, cross bar 7 and broach 8, mobile jib 7 one ends connect with pump 12, the other end fixed transverse rod 7, fixed fingers 8 on the cross bar 7, broach 8 submerges in the long wool of transition band 1, mud in the long wool dialled from getting off fall into sludge sump 9, the length of cross bar 7 matches with the fabric width of filtrate, preferably equates.
The coagulating treatment of water of the present invention is used the polymer-inorganic salt coagulant, as polymerize aluminum chloride, bodied ferric sulfate etc.Coagulating agent forms on the long wool of sludgd deposition at transition band together through generating corresponding oxyhydroxide other impurity that flocculate behind the coagulating in former water.Therefore the technical conceive of this sludge disposal is the oxyhydroxide in the mud to be generated corresponding inorganic salt by neutralization reaction reclaimed.
The concrete technical scheme of this sludge disposal comprises neutralization reaction, filtration and separates, and described neutralization is exactly to add inorganic acid solution or/and calcium powder (calcium aluminate) in mud, transfers sludge water to pH3～5 o'clock, precipitation, separates.Filtrate is reclaimed coagulating agent and is utilized, and filter residue is safe mud.
The preferably salt acid solution carries out neutralization reaction, pH value preferred 3.5～4.5.
Can also be heated to simultaneously at neutral and to boil, to kill virus in the mud, bacterium, parasitic ovum etc.
The present invention has carried out the simulation test of purificating raw water Processing of Preparation tap water in the laboratory, former water provides (being Chao Hushui) by Anhui group company of Skyworth waterworks, coagulant polymeric aluminium chloride is provided by Chaohu health and epidemic prevention station, transition band is the long wool cloth of the long 12cm synthon of suede, and the result is as follows:
The filtering velocity of water purifying treatment reaches 80～140m/h, and producing water ratio is greater than 99%, and the opacity 0.2 of percolation water is spent (YZD-A type liquid instrument mensuration).Compare with existing tap water production technique, its equipment, floor space and energy consumption are all saved greatly, operation is also simplified greatly, particularly needn't artificial removing waterborne to floating matters such as the dead fish that swims in the muddy water district, dead bird, leaf and alumen ustum, greatly alleviated working strength of workers.This purification process technique is the outstanding technology of simplifying literary writing by leaving out superfluous words, and the producing water ratio height, the output height, and water quality is good.Clear water has drop from water outlet during by carrying-off, and this part potential energy can be converted into mechanical energy, is used for driving the turning motion and the fluidic that transmit guipure and transition band and sprays.
The result of sludge disposal has also carried out relevant assay determination, and the acid-soluble material in the mud before not disposing accounts for solid about 50%.Dispose postprecipitation and separate filter residue (the being safe mud) odorless, tasteless that obtains, virus-free, bacterium, parasitic ovum etc., naturally drained back water ratio about 66% in 24 hours, ash purification determining organic content about 28%, Kjeldahl determination is measured non-protein nitrogen(NPN) about 7%, about protein-n 5%, can make material of construction, filler or fertilizer and use.Reclaim aluminum chloride in the filtrate, press the method for GB15892-1995 regulation and measure, in aluminum oxide, the rate of recovery reaches 72%.This method of disposal meets the developing direction of minimizing (decrement 50%), innoxious and resource utilization fully.
The sludge cake sample that sludge cake sample that this mud provides the 9th waterworks, Beijing and Hefei Wang Xiaoying sewage work provide has carried out disposal and assay determination respectively, its result and above-mentioned identical substantially is so the present invention also is applicable to sewage work.
Four, description of drawings
Fig. 1 is a water-purification plant A-A cross-sectional view.
Fig. 2 is the right view of water-purification plant, the structure and the working process of signal separator.
Five, embodiment
Below in conjunction with accompanying drawing the present invention is given a detailed account.
Get the synthon long wool cloth of long 12cm of suede and fabric width 1.6m and make transition band 1, transition band 1 is directed to roller 2 location and forms " recessed " word shape, and can do continuous turning motion.Transition band 1 aseptic upper section is divided into muddy water district 10 and clear water zone 11 with the filtration chamber.
Two groups are used for driving the transmission guipure 3 that transition band 1 is done turning motion about being horizontally disposed with, wherein one group is positioned at clear water zone and muddy water district at the interface in the filtration chamber, transmitting guipure 3 contacts with the cloth cover of transition band 1 to drive transition band 1 revolution, another group transmits guipure 3 and contacts with transition band 1 long wool face, and the mud on the long wool is separated herein.Get stainless (steel) wire and make transmission guipure 3, filter with convenient.Transmit guipure 3 and be looped around on the roller 4 at two ends, some anti-pocket roller bars 5 are arranged between two rollers 4, anti-pocket roller bar guarantees to transmit guipure 3 and contacts with transition band 1 level, does not play pocket.
Separator and sludge sump 9 are positioned at outside the filtration chamber.
The structure of separator is seen Fig. 2.Tubulose mobile jib 6 one ends are connected with receiver 13 by pump 12, and the other end is connected with tubulose cross bar 7, is fixed with broach 8 on the cross bar 7, and broach 8 submerges in the long wool of transition band 1, interval 3～5cm, and hollow is distributed with many side openings on it.
1, the water decontamination process is described below:
Former water adds coagulating agent to carry out flowing directly in the muddy water district 10 of filtration chamber after the coagulating treatment.Transition band 1 turning motion and that have long wool forms an active filtering layer, the intact simultaneously scavenging process that screens out, precipitates and contact cohesion, and the clear water after the purification is gone into clear water zone 11; Sedimentary mud is caught by long wool and with long wool motion together, when transition band 1 left the water surface, the sludge quantity on it was saturated substantially, simultaneously the floating matter on the water surface was shifted out the filtration chamber together.Mud by 8 groups of broach from and be subjected to the fluidic flushing and fall in the sludge sump 9, cleaned long wool simultaneously.At this moment finished the whole process that water purifies, promptly coagulation, precipitation, filtration and mud separates.Transition band 1 after the cleaning just drops into the purification operation of next round.
2, the sludge disposal process is described below:
Mud in the sludge sump 9 is at first picked out floating matter, move to then and dispose heating under agitation in the pond (or still), add inorganic acid solution simultaneously, can regulate acid-basicity with hydrochloric acid soln or calcium aluminate, when the pH value reaches 3.5～4.5, stop to add acid, continue to stir, be heated to and boil, after reacting completely, leave standstill, filtering separation, filtrate pump goes back to the coagulating agent pond and reclaims coagulating agent, filter residue promptly is safe mud.
Dispose steam coil can be set in the pond (or still) be used for heating, but also chuck heating concerning still, in Here it is the limit and the limit heating further to kill virus in the mud, bacterium, parasitic ovum etc.
3, as shown in Figure 2, the effect of clear water zone fairlead 14 is that the clear water in the clear water zone is introduced clean water basin, and the clear water zone outlet has the potential difference of 2～3m approximately apart from clean water basin, so can utilize the potential energy of this drop to drive water turbine 15, provide power for transmitting guipure 3 and pump 12, with further energy-saving and cost-reducing.
Claims (8)
1, a kind of water purification processing method, comprise coagulation, precipitation and filtration, it is characterized in that: described precipitation is with filtration and mud and finish separating in the filtration chamber of clear water, Here it is will flow directly into the muddy water district of filtration chamber through the water of coagulating treatment, when the sludge stream in the muddy water is crossed the transition band of turning motion, be filtered with on long wool catch and be moved to outside the filtration chamber, separate falling into sludge sump then on the inherent filtration band, the clear water that sees through transition band enters clear water zone; Described transition band is selected from synthon long wool cloth or steel fiber long wool cloth or flex foam.
2, water purification processing method according to claim 1 is characterized in that: described transition band is synthon long wool cloth or the steel fiber long wool cloth of the long 10～15cm of suede.
3, by the used device of the described water purification processing method of claim 1, comprise filtration chamber, separator and sludge sump, it is characterized in that:
(1), is provided with in the filtration chamber that head and the tail connect and makes the transition band (1) of continuous turning motion on the guide roller (2); Also be provided with at least one group and be used for driving the transmission guipure (3) that transition band (1) is done turning motion, transmit guipure (3) and be looped around on the roller (4) at two ends, anti-pocket roller bar (5) is arranged between two rollers (4);
(2) separator is made of mobile jib (6), cross bar (7) and broach (8), and the mobile jib same pumps of (7) one ends (12) connect, the other end fixed transverse rod (7), and cross bar (7) is gone up fixed fingers (8), and broach (8) submerges in the long wool of transition band (1).
4, device according to claim 3 is characterized in that: two groups are used for driving the transmission guipure (3) that transition band (1) is done turning motion about being horizontally disposed with, and wherein one group is positioned at the filtration chamber.
5, according to claim 3 or 4 described devices, it is characterized in that: the mobile jib of separator (6), cross bar (7) and broach (8) are the tubulose of hollow, and on the broach (8) side opening are arranged.
6, by the method for disposal of the mud that generates in the described water decontamination process of claim 1, comprise neutralization, precipitate and separate, it is characterized in that: described neutralization is exactly to add inorganic acid solution or/and calcium aluminate in mud, when sludge water pH3～5, precipitation, separates.
7, mud according to claim 6 is characterized in that: described inorganic acid solution is a hydrochloric acid soln.
8, according to claim 6 or 7 described muds, it is characterized in that: be heated to simultaneously at neutral and boil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510094819XA CN100375718C (en) | 2005-10-11 | 2005-10-11 | Water purification, mud treatment and water purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200510094819XA CN100375718C (en) | 2005-10-11 | 2005-10-11 | Water purification, mud treatment and water purifier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1778688A true CN1778688A (en) | 2006-05-31 |
| CN100375718C CN100375718C (en) | 2008-03-19 |
Family
ID=36769164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200510094819XA Expired - Fee Related CN100375718C (en) | 2005-10-11 | 2005-10-11 | Water purification, mud treatment and water purifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100375718C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101570355B (en) * | 2009-06-11 | 2011-11-16 | 苏州科技学院 | Method for recovering inorganic coagulant in sewage sludge |
| CN103693362A (en) * | 2013-12-24 | 2014-04-02 | 南京蓝深制泵(集团)股份有限公司 | Rotary separation conveyor |
| CN106232529A (en) * | 2014-04-23 | 2016-12-14 | 安德里特斯公开股份有限公司 | For the method and apparatus making dewatering slurries on screen cloth |
| CN107445369A (en) * | 2017-09-27 | 2017-12-08 | 翟葆麟 | A kind of blue-green algae pasture and water processing ship and blue-green algae pasture and water processing method |
| CN107986471A (en) * | 2017-12-04 | 2018-05-04 | 宿州冬宇环保科技有限公司 | A kind of effluent filter |
| RU2658068C1 (en) * | 2017-02-26 | 2018-06-19 | Государственное Унитарное Предприятие "Водоканал Санкт-Петербурга" | Method of drinking water treatment |
| CN109432867A (en) * | 2018-11-21 | 2019-03-08 | 南通中国科学院海洋研究所海洋科学与技术研究发展中心 | A kind of Branchial filter |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4645598A (en) * | 1985-04-11 | 1987-02-24 | The Budd Company | Water treatment plastic products for rectangular clarifiers |
| CN1032852C (en) * | 1990-02-02 | 1996-09-25 | 成都科技大学 | High-effective composite coagulant and its manufacturing method |
| CN1104383C (en) * | 1999-02-03 | 2003-04-02 | 郭玉生 | Sewage treating procedure to realize zero exhaust of sewage and sludge in small- and middle-sized papermaking mills |
| KR100330516B1 (en) * | 1999-02-23 | 2002-03-28 | 김영대 | Filtration apparatus having belt press used synthetic fiber thread |
-
2005
- 2005-10-11 CN CNB200510094819XA patent/CN100375718C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101570355B (en) * | 2009-06-11 | 2011-11-16 | 苏州科技学院 | Method for recovering inorganic coagulant in sewage sludge |
| CN103693362A (en) * | 2013-12-24 | 2014-04-02 | 南京蓝深制泵(集团)股份有限公司 | Rotary separation conveyor |
| CN103693362B (en) * | 2013-12-24 | 2016-08-17 | 蓝深集团股份有限公司 | A kind of Clothoid type separating conveyer |
| CN106232529A (en) * | 2014-04-23 | 2016-12-14 | 安德里特斯公开股份有限公司 | For the method and apparatus making dewatering slurries on screen cloth |
| RU2658068C1 (en) * | 2017-02-26 | 2018-06-19 | Государственное Унитарное Предприятие "Водоканал Санкт-Петербурга" | Method of drinking water treatment |
| CN107445369A (en) * | 2017-09-27 | 2017-12-08 | 翟葆麟 | A kind of blue-green algae pasture and water processing ship and blue-green algae pasture and water processing method |
| CN107986471A (en) * | 2017-12-04 | 2018-05-04 | 宿州冬宇环保科技有限公司 | A kind of effluent filter |
| CN109432867A (en) * | 2018-11-21 | 2019-03-08 | 南通中国科学院海洋研究所海洋科学与技术研究发展中心 | A kind of Branchial filter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100375718C (en) | 2008-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102372400B (en) | Hazardous waste handling center waste water integrated treatment system and method | |
| CN100375718C (en) | Water purification, mud treatment and water purifier | |
| CN2799526Y (en) | Magnetic lightcatalyzed integral sewage regeneration and utilization device | |
| CN106630310B (en) | A kind of cities and towns black and odorous water processing method | |
| WO2018024019A1 (en) | Industrial treatment and regeneration system for contaminated bottom mud in rivers and lakes | |
| CN208814845U (en) | Consumer waste landfill percolate processing system | |
| CN109970289A (en) | A kind of urban wastewater treatment mentions mark advanced treatment process and device | |
| CN104045178A (en) | Hydraulic-loom wastewater treatment recycling method | |
| CN106745467A (en) | One kind compounding water purification agent and its component are prepared and method for purifying water | |
| Liu et al. | Applying Bio-Slow Sand Filtration for Water Treatment. | |
| CN105668909B (en) | A kind of wastewater treatment method and system suitable for community hospital | |
| CN208362111U (en) | A kind of urban sewage treatment system | |
| CN108911461A (en) | A kind of mercury object original position abatement disposition ship | |
| CN106629881A (en) | Municipal sewage treatment agent and preparation method thereof | |
| CN106430597B (en) | A kind of anti-clogging artificial wet land system | |
| Qrenawi et al. | Sludge management in water treatment plants: literature review | |
| CN105967496B (en) | A kind of method for innocent treatment of sludge with high salt | |
| CN101090868B (en) | Magneting photocatalytic compact wastewater reclamation and reuse device | |
| CN108059297A (en) | A kind of carbon nano tube compound material sewage treatment drug and processing method | |
| CN1100010C (en) | Urban underground pipeline type sewage treatment method | |
| CN105884146B (en) | A kind of rural area decentralized type sewage processing system | |
| CN212559887U (en) | Water body deep purification system based on electrolytic denitrification and MBR | |
| CN209456261U (en) | A kind of hazardous waste processing center waste water treatment system | |
| CN211847575U (en) | Integrated sewage treatment system | |
| CN209583911U (en) | A kind of laboratory integration waste water treatment system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080319 Termination date: 20151011 |
|
| EXPY | Termination of patent right or utility model |